Articles

Complications of Transurethral Resection of the Prostate (TURP)—Incidence, Management, and Prevention

By: Jens Rassweiler a lowast , Dogu Teber a, Rainer Kuntz b and Rainer Hofmann c

Published online: 01 November 2006

Keywords: Benign Prostatic Hyperplasia (BPH), Transurethral Resection of the Prostate (TURP), Complications, Morbidity

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Abstract

Objectives

To update the complications of transurethral resection of the prostate (TURP), including management and prevention based on technological evolution.

Methods

Based on a MEDLINE search from 1989 to 2005, the 2003 results of quality management of Baden-Württemberg, and long-term personal experience at three German centers, the incidence of complications after TURP was analyzed for three subsequent periods: early (1979–1994); intermediate (1994–1999); and recent (2000–2005) with recommendations for management and prevention.

Results

Technological improvements such as microprocessor-controlled units, better armamentarium such as video TUR, and training helped to reduce perioperative complications (recent vs. early) such as transfusion rate (0.4% vs. 7.1%), TUR syndrome (0.0% vs. 1.1%), clot retention (2% vs. 5%), and urinary tract infection (1.7% vs. 8.2%). Urinary retention (3% vs. 9%) is generally attributed to primary detrusor failure rather than to incomplete resection. Early urge incontinence occurs in up to 30–40% of patients; however, late iatrogenic stress incontinence is rare (<0.5%). Despite an increasing age (55% of patients are older than 70), the associated morbidity of TURP maintained at a low level (<1%) with a mortality rate of 0–0.25%. The major late complications are urethral strictures (2.2–9.8%) and bladder neck contractures (0.3–9.2%). The retreatment rate range is 3–14.5% after five years.

Conclusions

TURP still represents the gold standard for managing benign prostatic hyperplasia with decreasing complication rates. Technological alternatives such as bipolar and laser treatments may further minimize the risks of this technically difficult procedure.

Take Home Message

The morbidity of contemporary TURP is lower than previously reported. This is based on a continuously improving armamentarium and technique, but is also related to a significant improvement in teaching modalities, including video technology such as Video TUR and hands-on courses with phantoms.

Keywords: Benign Prostatic Hyperplasia (BPH), Transurethral Resection of the Prostate (TURP), Complications, Morbidity.

1. Introduction

Despite the introduction of alternative techniques, transurethral resection of the prostate (TURP) still represents the gold standard in the operative management of benign prostatic hyperplasia (BPH) [1], [2], [3], [4], [5], [6], and [7]. TURP underwent significant technical improvements during the last decade with major impact on the incidence of intra- and postoperative complications. On behalf of the European Society of Uro-technology, we focused on actual TURP practices [5], with the intention to update the status, technical advancement, prevention, and management of complications.

2. Methods

MEDLINE search on indications, techniques, technology, and incidence of complications after TURP in larger studies or randomized clinical trials included more than 9000 patients [1], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], and [27]. We classified the relevant studies into three groups according to the periods of publication: early (1979–1993); intermediate (1994–1999); and recent (2000–2005). Additionally, we analyzed the 2003 results of the urological quality assessment group of Baden-Württemberg, which include our own data in Heilbronn [5]: 8265 patients were treated in 66 departments. The participation rate was 91%, of which 7707 (93.3%) underwent TURP. Finally, based on long-term experience at three German centers, the current TURP management and impacts of further technological improvements are discussed.

3. Results

3.1. Indications for TURP

Indications for operative management of BPH include [3] and [4]:

  • - Recurrent urinary tract infection (UTI) caused by bladder outlet obstruction
  • - Recurrent episodes of urinary retention
  • - Bladder calculi
  • - Recurrent hematuria caused by bladder outlet obstruction
  • - Renal insufficiency caused by BPH

Bladder calculi may not be regarded as an absolute indication because only a small percentage of patients (8%) needed prostate surgery after ESWL in a recent study [28].

Contraindications represent untreated UTI and coagulation disorders. High-risk patients have to be checked carefully by the cardiologist or anesthesiologist to minimize the risk of associated morbidity (Table 1).

Table 1

Incidence and type of intra- and perioperative complications after TUR—detailed comparison of selected studies during three periods

Type of complicationEarlyIntermediateRecent
Mebust 1989Doll 1992Haupt 1997Borboroglu 1999Kuntz 2004
Technical complication (%)
Clot retention3.311.01.91.35.0
Bleeding & transfusion6.422.02.20.42.0
TUR-syndrome2.0n.a.0.30.80.0
Capsular perforation0.910.0n.a.n.a.4.0
Hydronephrosis0.3n.a.0.00.00.0
Epididymitis/UTI3.925.01.64.04.0
Urosepsis0.23.00.20.00.0
Failure to void6.53.0n.a.7.15.0
Incontinencen.a.38.00.3n.a.1.0
Associated morbidity
Cardiac arrhythmia1.1n.a.0.41.3n.a.
Myocardial infarction0.050.50.20.20.0
Pulmonary embolismn.a.n.a.0.1n.a.0.0
Pneumonitisn.a.n.a.0.2n.a.0.0
COPD0.5n.a.0.1n.a.n.a.
Deep vein thrombosisn.a.n.a.n.a.0.00.0
Mortality0.230.80.10.00.0

n.a.=not available.

3.2. Resection techniques

Various systematic approaches to TURP have been proposed: In 1943, Nesbit described a procedure that starts with the ventral parts of the gland (between 11 and 1 o’clock), followed by both lateral lobes, the mid-lobe, and finishing with the apex [29]. Flocks and Culp preferred to start with the mid-lobe then segmented the lateral lobes at 9 and 3 o’clock [30]. In Germany, the technique developed by Mauermayer [31] and Hartung and May [32] gained popularity. TURP is divided into four steps: mid-lobe resection, paracollicular transurethral resection (TUR), resection of lateral lobes and ventral parts, and apical resection. Further development included suprapubic trocar systems [33] and continuous-flow resectoscopes [34], both of which provide low irrigation pressure. Another milestone was video-assisted resection [35].

3.3. TURP technology

Electroresection is performed by monopolar, high-frequency current with a maximum cutting power of 200 watts [3] and [30]. A microprocessor-controlled electrical unit with an active electrode that transduces permanent signals to the processor allows real-time power adjustment [10]. Coagulation depth during cutting depends on the intensity of the light bow (voltage), so the degree of coagulation is adjusted to the individual tissue properties. Peak powers in the millisecond range may reach 230 watts, but the total power for TURP is lower than that of earlier generators.

Coagulating intermittent cutting was developed to realize blood-sparing TURP by modifying a standard high-frequency generator: phases with a predominant cutting effect alternate with coagulating phases of constant pulses under the control of pulse intervals [36].

Other instrumental alternatives to decrease TURP morbidity include modified electrode shapes (thick loop) [37], generator modifications that enable tissue vaporization (TUVP) [38], and additional mechanical ablative effects such as rotoresect [39].

Recently, manufacturers such as Gyrus, Vista-ACMI, Olympus, and Karl Storz introduced bipolar devices that differ with respect to the loop shape and technical solution of bipolar TURP (active and return electrode) [40], [41], [42], and [43]. High-frequency (HF) energy up to 160 watts passes through the conductive irrigation solution of 0.9% sodium chloride. This results in a vapor layer of plasma that contains energy-charged particles that induce tissue disintegration through molecular dissociation [41]. This results in a lower resection temperature than conventional monopolar systems, which theoretically reduces thermal damage to surrounding tissue. The use of physiological sodium chloride for irrigation nearly eliminates the risk of TUR syndrome.

3.4. Laser prostatectomy

Alternative ablative technologies include Holmium-YAG laser resection [24], [25], and [44] or ablation [45] and [46] and KTP-laser photoselective vaporization of the prostate [47]. These techniques are reported to be virtually bloodless and to provide short catheter times with comparable functional outcomes like TURP.

3.5. Intra-operative complications

These are related to the technical difficulties of the procedure (Table 1 and Table 2).

Table 2

Main perioperative complications after TUR—comparison of three periods

Authors NTransfusion (%)Revision (%)Infection (%)TUR–syndrome (%)
Early
Zwergel 197923221.2n.a.n.a.1.6
Mebust 198938856.4n.a.2.32.0
Doll 199238822.03.014.0n.a.
Intermediate
Zwergel 199521414.6n.a.n.a.0.8
Horninger 199612117.6n.a.n.a.2.8
Haupt 19979342.2n.a.n.a.0.3
Gallucci 1998800.0n.a.5.00.0
Gilling 1999596.63.38.20.0
Borboroglu 19995200.4n.a.2.10.8
Recent
Heilbronn 2003 a1264.84.21.70.8
Baden-Württemb. 200377073.05.03.50.8
Kuntz 20041002.03.04.00.0
Muzzonigro 20041137.1n.a.n.a.0.0
Berger 2004 b2712.6n.a.n.a.1.1

a Present study.

b With coagulating intermittent cutting.

n.a.=not available.

3.6. Bleeding

Arterial bleeding can be more pronounced in cases of preoperative infection or urinary retention because of a congested gland. Anti-androgen pretreatment with finasteride or flutamide may reduce bleeding [3]. Venous bleeding generally occurs because of capsular perforation and venous sinusoid openings. The amount of intraoperative bleeding may depend on gland size and resection weight.

3.6.1. Technical aspects

According to the literature about resection techniques [29], [30], [31], and [32], vascular control of prostatic vessels differs. In the Mauermeyer approach [31] and [32] the vessels at 5 and 7 o’clock are controlled early; the Nesbit technique [29] aims to first reach the capsule at the 11 and 1 o’clock positions. Our experience with both approaches indicates no major difference, at least with modern HF technology.

3.6.2. Management

The following problems with arterial bleeders may occur during resection [3]:

  • - Arterial flow is directed to the optic
  • - Bleeding is covered by a coagulum or behind prostatic tissue
  • - Bleeding is close to the apex (12 o’clock position) or bladder neck

In larger arteries, a resectoscope might be used to compress the bleeding. After that, the optimal angle for visualizing the bleeding stump must be found to avoid any arterial flow directed to the optic (Fig. 1). Bleeding arteries have to be coagulated circumferentially once the resection has reached the capsule to seal the stump (Fig. 2). Simultaneous recto-digital manipulation might be useful to expose such vessels. Careful coagulation must be performed toward the end of resection with minimal irrigation flow to visualize the source of small arterial bleeders (Fig. 3). Bleeders, particularly at the bladder neck and apex, might be overlooked at this step.

gr1

Fig. 1

Retraction of resectoscope with advancement of the loop to achieve a better angle for visualization of a bleeding artery.

gr2

Fig. 2

Effective coagulation of a large vessel by sealing of the lumen using slow circumferential movements of the loop.

gr3

Fig. 3

Billard effect of arterial bleeding reflected at the wall of the prostatic fossa aggravating the identification of the bleeding source.

Venous bleeders may cause an influx of irrigation fluid if they are not visible during resection. However, if the bladder is empty, the fluid is dark red. Venous sinusoids can be coagulated, but must be done very carefully if there is associated capsular perforation to avoid aggravating the perforation. Smaller veins can be occluded with a three-way-balloon catheter at the end of the TUR (Fig. 4).

3.6.3. Balloon compression

The catheter should be blocked with 20 cc in the fossa; however, in critical cases, the balloon can be blocked in the bladder (60–80 cc) and put under traction to compress the fossa. This can be accomplished with gauze knotted around the catheter at the meatus by use of a 500cc bottle at the end of the bed (Fig. 4a). Blockage of the balloon in the fossa to tamponade smaller veins (Fig. 4b) may remove thrombi of coagulated vessels or cause the capsule to rupture. Additional recto-digital control with compression of bleeding sources for 5–10 minutes may be useful.

gr4

Fig. 4

Blockade of balloon catheter. (a) Balloon is blocked in the prostatic fossa (volume of balloon=resection weight). (b) Balloon is blocked with 20 cc more than the resection weight in the bladder and put under traction to occlude venous bleeders.

3.7. TUR syndrome

TUR syndrome is characterized by mental confusion, nausea, vomiting, hypertension, bradycardia, and visual disturbances. It is caused by dilutional hyponatremia (serum sodium <125mEq/l) caused by early perforation of capsular veins or sinuses with consecutive influx of hypotonic irrigating fluid. Patients under spinal anesthesia may show unrest, cerebral disturbance, or shivering as early signs. Untreated, TUR syndrome may have severe consequences like cerebral or bronchial edema. However, the incidence of TUR syndrome has decreased significantly during the last few decades from 3% to <1% (Table 2).

3.7.1. Diagnosis

With any suspicion of TUR syndrome, serum sodium levels must be checked immediately. Adding ethyl alcohol to the irrigant may allow early detection of influx by permitting analysis of the alcohol content in the exsufflated air [19] and [23]. However, because of the low incidence of TUR syndrome, we do not recommend this as routine treatment.

3.7.2. Management and prevention

In cases of significant hyponatriemia, the procedure has to be stopped and 20mg furosemide must be applied with an infusion of hypertonic sodium chloride [3]. A suprapubic trocar is recommended for larger glands (>60 cc) [19] and [33].

3.8. Extravasation

This occurs when the capsule is injured or the bladder neck is divided (Fig. 5). Extravasation of the irrigation fluid is extra-retroperitoneal in most instances. However, irrigation fluid can also be found intraperitonally (e.g., by diffusion of large amounts or if the bladder is injured).

gr5

Fig. 5

Division of the bladder neck with subsequent extraperitoneal extravasation.

3.8.1. Diagnosis

If the irrigation input does not correlate with the output and a palpable increase in abdominal pressure, an ultrasound is necessary to identify intra- or retroperitoneal fluid collection. Usually this is associated with complications such as abdominal pain and respiratory insufficiency, and requires drainage.

3.8.2. Management and prevention

In cases of extraperitoneal extravasation, forced diuresis (20–40mg furosemide) may be sufficient. Intraperitoneal fluid collection should be drained percutaneously via a cystostomy or nephrostomy catheter placed under ultrasonic guidance or perhaps by open surgical drainage. The irrigation pressure should be reduced by lowering the height of the irrigation bag or inserting an suprapubic trocar if there is a capsular perforation. Chips should be evacuated carefully so as not to increase the perforation at the bladder neck. When bipolar technology is used together with sodium chloride irrigation, extravasation induces fewer symptoms. Percutaneous drainage is needed only in cases of massive transperitoneal effusion.

3.9. Injury of orifices

Such a lesion may occur when large mid-lobes are resected and the ureteral orifice is difficult to identify. As in TUR of bladder tumors, the management depends on the severity of the lesion.

3.9.1. Management and prevention

In cases of severe urethral injury a DJ-stent may be indicated; otherwise, sonographic follow-up is sufficient. The stent should be kept indwelling for two to three weeks. The orifices should be identified before TURP starts. If this is not possible because of a large mid-lobe, TURP should be performed very carefully, particularly close to the bladder neck. Suprapubic cystoscopy can be helpful in this situation [33].

3.10. Injury of external sphincter

Most forms of postoperative incontinence are not caused by iatrogenic trauma of the external sphincter muscle. The lesion usually occurs ventrally (at 12 o’clock), where the veru montanum (ejaculatory duct) is not visible. Also, there is an increased risk of sphincteric injury if the veru has already been resected.

3.10.1. Prevention

The exact location of the external sphincter should be checked repeatedly, particularly during apical paracollicular resection [32]. Rectal palpation might be helpful for this. Traction on the balloon catheter should be minimized if there is a suspicious lesion on the external sphincter [3].

3.11. Postoperative complications

Postoperative complications occur early and late (Table 1 and Table 4).

3.12. Bladder tamponade

Recurrent or persistent bleeding sometimes results in clot formations and a bladder tamponade that require evacuation or even reintervention (1.3–5%). Arterial bleeders can usually be identified by intermittent change of colour in the irrigation outflow from clear to red (cloudy red spots), whereas venous bleeders result in a dark red continuous irrigation fluid.

3.12.1. Management

Obstructing clots should generally be evacuated. The balloon catheter should then be replaced under rectal palpation. The balloon can be either blocked in the fossa or inflated in the bladder (20–40 cc more than the resection weight) and put under traction (Fig. 4b). However, this technique does not work with active arterial bleeders, particularly at the bladder neck.

If the irrigation fluid does not clear in the recovery room, immediate reintervention with tamponade evacuation and bleeder coagulation is required to minimize the risk of further complications.

Occasionally, associated coagulation disorders that were undetected preoperatively may not respond to coagulation alone. In such situations, additional recto-digital palpation may stop the bleeding. Another alternative is transfemoral superselective embolization [48].

3.13. Infection

The infection rate is usually low (e.g., in Baden-Württemberg 3.5%); however, in the French multi-centric study the incidence of post-TURP infection was 21.6%, including a 2.3% rate of septic shock [49]. Risk factors included:

  • - Preoperative bacturia
  • - Longer duration of the procedure (>70min.)
  • - Preoperative stay longer than two days
  • - Discontinuation of catheter drainage (tamponade evacuation)

The low rate in Heilbronn (1.7%) is based on routine preoperative urinalysis to rule out any significant untreated UTI. This might be problematic in cases of indwelling catheters. We recommend antibiotic prophylaxis such as cotrimoxazole or gyrase inhibitors. We also see a low incidence of postoperative epididydimitis and do not recommend routine simultaneous vasectomy.

3.14. Urinary retention

Urinary retention (3–9%) is mainly attributed to primary detrusor failure rather than to incomplete resection [50]. We are very conservative about early repeated TURP in cases of persisting residual urine (RU) or micturation problems. Unless TRUS shows significant tissue (ventile effects), TURP should be postponed until the fossa heals. RU may persist above 100 cc for a significant amount of time without presenting a problem to the patient, particularly in cases of previous detrusor decompensation. In such cases, we remove the suprapubic catheter once RU is <150 cc.

3.15. Incontinence

Early incontinence may occur in up to 30–40% of patients; however, late iatrogenic stress incontinence occurs in fewer than 0.5% of patients.

3.15.1. Early management

Incontinence after BPH surgery requires careful evaluation [4] and [51]. Early incontinence is usually urge symptomatic, either because of irritative symptoms such as fossa healing and associated UTI or detrusor instability caused by long-lasting BPH [4]. Symptomatic treatment should include time-limited anti-cholinergic selective drugs such as Toldoridine or Darifenacin, as well as anti-inflammatory regimens such as Diclofenac.

3.15.2. Urodynamic evaluation

Incontinence that persists longer than six months requires complete investigation, including ascending urethrogram, cystourethroscopy, and urodynamic evaluation [4]. There are several causes of incontinence [51] and [52]: sphincter incompetence (30%), detrusor instability (20%), mixed incontinence (30%), residual adenoma (5%), bladder neck contracture (5%), and urethral stricture (5%).

3.15.3. Late management

Depending on endoscopic and urodynamic findings, conservative treatment with pelvic floor exercise combined with TRUS-biofeedback and electrostimulation might be indicated. Promising experiences with Duloxetine (40mg b.i.d.) must be balanced against the side effects, which cause patients to discontinue use. Since periurethral injection therapy was not very successful, an artificial sphincter might be indicated for a few patients [52]. Recently, higher success rates (67% dry, 92% improvement) were reported with inflatable paraurethral balloons [53].

3.16. Urethral stricture

The rate of urethral stricture varies from 2.2% to 9.8% in the literature; there is no relationship to time periods (Table 4). There are two main reasons related to location [3]:

  • - Meatal strictures usually occur because of an inappropriate relationship between the size of the instrument and the diameter of the urethral meatus.
  • - Bulbar strictures occur because insufficient isolation by the lubricant causes the monopolar current to leak.

The gel should be applied carefully in the urethra and along the shaft of the resectoscope. The lubricant must be reapplied in cases of longer resection time. Moreover, high cutting current should be avoided. An internal urethrotomy must be performed before TURP if there are pre-existing meatal or urethral strictures [3], [32], and [35].

3.17. Bladder neck stenosis

The incidence varies from 0.3% to 9.2%, usually after smaller glands (<30g) are treated. Therefore, the indication for TURP in cases of smaller glands should be taken very seriously according to the criteria mentioned earlier. A prophylactic bladder neck incision at the end of the procedure may reduce the incidence [3] and [32]. Treatment includes electrical, or preferably, laser incision of the bladder neck [2] and [44].

3.18. Retrograde ejaculation

According to the nature of the procedure, retrograde ejaculation occurs in the majority of patients (53–75%). Retrograde ejaculation might be avoided if the tissue around the veru montanum is spared during resection. More importantly for younger patients, the indication for TURP should be taken seriously versus medical treatment with alpha-blockers or 5-alpha-reductase-inhibitors, or a transurethral incision of the prostate.

3.19. Erectile dysfunction

Theoretically, HF-generated current close to the capsule may damage the neurovascular bundles. The rate of impotence varies from 3.4 to 32% in the literature [2] and [3]. However, there are also reports of improved erections after TURP [52].

3.20. Recurrent BPH

The retreatment rate of TURP is lower than the rates of other alternatives such as TUMT and TUNA (3–14.5% after five years) [2]. Reasons for Re-TURP include insufficient resection and the natural course of the disease.

3.21. Associated morbidity and mortality (Table 1)

Despite the increasing mean age (55% of patients are older than 70), the associated morbidity of TURP maintained a similar low level <1% with a mortality rate of 0–0.25% in large series [5] and [7]. Nevertheless, TURP still has to be taken seriously, particularly with cardiac patients. Coagulation disorders should be checked preoperatively (no aspirin, clopidogel (oumadine)).

4. Discussion

Mortality after TURP has decreased substantially during the past few decades to <0.25% in contemporary series (Table 1) [5] and [7]. This might be mainly attributable to the advances in anesthesia and to the technical improvements of TURP [2].

4.1. Intraoperative complications

The major intraoperative complication remains hemorrhaging that requires blood transfusions. Technical improvements of monopolar HF generators [10] and [35] and the instrumentarium [32], [33], and [36] resulted in a significant decrease of transfusion rates. Whereas in early series, transfusion rates of up to 22% were reported, the incidence has decreased to 0.4–7.1% (Table 2). An important factor represents the improved training of TUR with video technology [35]: both the trainee and mentor comfortably observe every technical step of the procedure, in contrast to the cumbersome use of side lens oculars. Significant bleeding during resection can be almost eliminated with alternative energy sources such as the Holmium laser [24], [25], and [43] or KTP laser [44]; however, newer TURP generators also achieve bloodless resection [36,40–43].

TUR syndrome largely disappeared with the use of modern irrigation fluids, improved surgical techniques, and instrumentation (low pressure). The incidence decreased from >2% to <1% (Table 1 and Table 2). Heidler [18] showed that fluid absorption seems to be avoidable with an appropriate drainage system. Studies that add alcohol to the irrigation fluid show a clear correlation between alcohol absorption in expiratory air and a decrease of serum concentration. Sodium in serum thus represents a good marker of fluid absorption [16] and [20]. Hypotonic intoxication does not occur with bipolar or laser technology with sodium chloride as irrigation fluid [40], [41], [42], [43], and [44].

4.2. Resection speed

Some complications are related to prolonged operating times. Despite all technical improvements, overall data reveal no decrease in resection speed of 0.5–0.9g/min (Table 3). The average speed of all series is about 0.6g/min, far from the frequently cited 1g/min. This reflects the status of TURP as the gold standard during the last few decades. Improved technologies such as microprocessor-controlled electrosurgery, coagulating intermittent cutting, and bipolar resection aim at simultaneous cutting and coagulation [10], [36], [37], [38], [39], [40], [41], [42], and [43] usually are associated with slower loop movements. Consequently, even in cases of less bleeding, the resection speed may not be reduced.

Table 3

Development of weight and resection speed during three periods

Authors NWeight (mean g)OR-time (min.)Resection speed (g/min.)
Early
Zwergel 197923229.3n.a.n.a.
Mebust 1989388522.0n.a.n.a.
Doll 199238823.038.00.6
Intermediate
Zwergel 199521428.5n.a.n.a.
Haupt 199793429.045.00.6
Gallucci 19988036.6n.a.n.a.
Hammadeh 19985220.121.60.9
Gilling 19995914.525.30.6
Borboroglu 199952018.862.50.3
Recent
Heilbronn 2003 a12647.977.00.6
Baden-Württemb. 2003770735.152.00.7
Kuntz 200410037.273.80.5
Muzzonigro 200411331.052.50.6
Berger 2004+27133.046.00.7

a Present study.

n.a.=not available.

4.3. Postoperative complications

Most frequent complications within the first four to six weeks after TURP are prolonged urinary retention, postoperative bleeding with clot retention, and UTI. The rate of clot retention with major bleeding was 2–5% in recent studies [2]. Previous acute urinary retention with high retention volumes (>1000 cc) represents a risk factor of post-TURP voiding difficulties [50]. UTI can be minimized with routine use of prophylactic antibiotic regimens and by minimizing the disconnection of the draining systems [49].

Few data reveal the relationship of the applied electric energy and the irritative symptoms postoperatively. Nevertheless, the amount of energy should be minimized [40]. A smooth fossa with minimal residual necrotic tissue guarantees better healing and thus reduces the risk of chronic infection and irritative symptoms [3].

The major two late complications are urethral strictures (2.2–9.8%) and bladder neck contractures (0.3–9.2%). Despite improvements in surgical techniques, lubricants, instruments, and electrical technology, the incidence of urethral strictures did not change significantly (Table 4). Theoretically, bipolar technology or laser minimizes the risk of a urethral stricture [41] and [44]. However, recently Tefelki et al. [42] reported on a higher stricture rate in a randomized study that compared bipolar to standard TURP (6.1 vs. 2.1%). The reason for this might not be the use of bipolar technology, but the fact that the latter required a larger resectoscope (27 F). Also, Kuntz et al. [25] observed similar stricture rates after Holmium laser resection and TURP when a resectoscope was used for morcellation. This underlines the multifactoral causes of urethral strictures, depending on technique (i.e. operating room time), technology, and the regimen of antibiotic treatment.

Table 4

Main late complications after TUR-comparison of three periods

Authors NIncontinence (%)Re-TUR (%)Impotence (%)Stricture (%)
Early
Zwergel 197923211.4n.a.n.a.4.4
Doll 19923889.01.524 an.a.
Intermediate
Zwergel 19952143.2n.a.n.a.3.9
Horninger 199612117.6n.a.n.a.5.6
Hammadeh 1998520.04.011.08.0
Gallucci 1998803.80.05.03.8
Gilling 1999593.26.68.29.8
Borboroglu 1999520n.a.2.52.13.1
Recent
Kuntz 20041005.03.010.52.2
Muzzonigro 20041131.8n.a.n.a.3.6

a 22% preoperative impotent.

n.a.=not available.

The controversy about erectile dysfunction after TURP was clarified by the Veterans Affairs cooperative study group that compared TURP with watchful waiting [52]: After a follow-up of almost three years, the proportion of patients who reported deterioration of sexual performance was identical in both arms (19% vs. 21%), whereas 3% in each group reported improvement. When excluding the study of Doll et al. [8] with 22% of patients reporting erectile dysfunction preoperatively, the rate was 2.1–11% in the reviewed literature (Table 4). However, none of these studies used a validated questionnaire such as an IEEF score to evaluate impotence.

5. Conclusions

The morbidity of contemporary TURP is lower than previously reported. This is based on a continuously improving armamentarium and technique, but is also related to a significant improvement in teaching modalities, including video technology such as video TUR, hands-on courses with phantoms, TURP courses with live demonstrations, and textbooks with CD-ROMs that demonstrate the steps of the technique [3]. Further technical improvement may also include the use of flexible instruments to improve the visibility and maneuverability of the resection loop [54].

Editorial Comment

Paolo Puppo

This is an important review paper which should be used in the future as a reference for comparison studies regarding new techniques and technologies for BPH treatment. As a matter of fact, the incidence of significant bleeding and late incontinence mainly contributed in the past to the definition of TURP as an “invasive” operation and nowadays it is greatly decreased. Blood replacement has become hepisodical and permanent incontinence is less than 0.5%. Bipolar technology might in the future even reduce the complication rate avoiding the already rare TUR syndrome. TURP is still a difficult operation with a consistent learning curve, but I presume that in the future review papers it could be rightly listed within the “non-invasive” procedure for the treatment of BPH.

References

  • [1] W.K. Mebust, H.L. Holtrgreve, A.T.K. Cockett, P.C. Peters, Writing committee. Transurethral prostatectomy: Immediate and postoperative complications. A cooperative study of 13 participating institutions evaluating 3,885 patients. J Urol. 1989;141:243-247
  • [2] S. Madersbacher, M. Marberger. Is transurethral resection of the prostate still justified?. BJU Int. 1999;83:227-237
  • [3] R. Hoffmann. Transurethrale Resektion (TURP) und transurethrale Inzision (TUIP) der Prostata. R. Hoffmann (Ed.) Endoskopische Urologie (Springer, Heidelberg, 2005) 50-84
  • [4] U. Zwergel. Benignes Prostatahyperplasie-(BPH)-Syndrom. Operative und interventionelle Therapieoptionen. Urologe A. 2001;40:319-329 Crossref.
  • [5] Qualitä tssicherung bei Fallpauschalen und Sonderentgelten. Jahresauswertung 2003- Baden-Württemberg, Modul 14/1 Prostataresektion. www.geqik.de/Auswertungen, 2004.
  • [6] S. Madersbacher, G. Alivizatos, J. Nordling, C. Rijoja Sanz, M. Emberton, J.J.M.C.H. de la Rosette. EAU 2004 Guidelines on assessment, therapy and follow-up of men with lower urinary tract symptoms suggestive of benign prostatic obstruction (BPH guidelines). Eur Urol. 2004;46:547-554 Abstract, Full-text, PDF, Crossref.
  • [7] S. Madersbacher, J. Lackner, C. Brössner, M. Röhlich, I. Stancik, M. Willinger, G. Schatzl. Reoperation, myocardial infarction and mortality after transurethral and open prostatectomy: a nation-wide, long-term analysis of 23,123 cases. Eur Urol. 2005;47:499-504 Abstract, Full-text, PDF, Crossref.
  • [8] H.A. Doll, N.A. Black, K. McPherson, A.B. Flood, G.B. Williams, J.C. Smith. Mortality, morbidity and complications following transurethral resection of the prostate for benign prostatic hypertrophy. J Urol. 1992;147:1566-1573
  • [9] W. Horninger, H. Unterlechner, H. Strasser, G. Bartsch. Transurethral prostatectomy: mortality and morbitidy. Prostate. 1996;28:195-198
  • [10] G. Haupt, J. Pannek, S. Benkert, C. Heinrich, H. Schulze, T. Senge. Transurethral resection of the prostate with microprocessor controlled electrosurgical unit. J Urol. 1997;158:497
  • [11] A. Patel, G.J. Fuchs, J. Gutiérrez-Aceves, T.P. Ryan. Prostate heating patterns comparing electrosurgical transurethral resection and vaporization: A prospective randomized study. J Urol. 1997;157:169-172
  • [12] U. Zwergel, B. Wullich, U. Lindenmeir, V. Rohde, T. Zwergel. Long-term results following transurethral resection of the prostate. Eur Urol. 1998;33:476-480 Crossref.
  • [13] M. Galluci, P. Puppo, M. Perachino, P. Fortunato, G. Muto, A. Mandressi, et al. Transurethral electrovaporization of the prostate vs. transurethral resection. Eur Urol. 1998;33:359-364
  • [14] M.Y. Hammadeh, G.A. Fowlis, M. Singh, T. Philp. Transurethral electrovaporization of the prostate – a possible alternative to transurethral resection: a one-year follow-up of a prospective randomized trial. BJU Int. 1998;81:721-725 Crossref.
  • [15] A. Vivien, T. Lazard, A. Rauss, M.-J. Laisnec, F. Bonnet. Infection after transurethral resection of the prostate: variation among centers and correlation with long-lasting surgical procedure. Eur Urol. 1998;33:365-369 Crossref.
  • [16] P.G. Borboroglu, C.J. Kane, J.F. Ward, J.L. Roberts, J.P. Sands. Immediate and postoperative complications of transurethral prostatectomy in the 1990s. J Urol. 1999;162:1307-1310
  • [17] P.J. Gilling, M. Mackey, M. Cresswell, K. Kennett, J.N. Kabalin, M.R. Fraundorfer. Holmium laser versus transurethral resection of the prostate: a randomized prospective trial with 1-year followup. J Urol. 1999;162:1640-1644 Crossref.
  • [18] H. Heidler. Frequency and causes of fluid absorption: a comparison of three techniques for resection of the prostate under continuous pressure monitoring. BJU Int. 1999;83:619-622
  • [19] G. Schatzl, S. Madersbacher, B. Djavan, T. Lang, M. Marberger. Two-year results of transurethral resection of the prostate versus four “less invasive” treatment options. Eur Urol. 2000;37:695-701 Crossref.
  • [20] S. Küpeli, E. Yilmaz, T. Soygür, M. Budak. Randomized study of transurethral resection of the prostate and combined transurethral resection and vaporization of the prostate as a therapeutic alternative in men with benign prostatic hyperplasia. J Endourol. 2001;15:317-321
  • [21] A.H.H. Tan, P.J. Gilling, K.M. Kennet, C. Frampton, A.M. Westenberg, M.R. Fraundorfer. A randomized trial comparing Holmium laser enucleation of the prostate with transurethral resection of the prostate for the treatment of bladder outlet obstruction secondary to benign prostatic hyperplasia in large glands (40 to 200grams). J Urol. 2003;17:1270-1274 Crossref.
  • [22] F. Bliem, M. Lamche, R. Janda, P. Schramek. Blood loss and absorption in TURP vs TUVRP under low pressure and high pressure conditions. Urologe A. 2003;42:1477-1488
  • [23] A.P. Berger, W. Wirtenberger, J. Bektic, H. Steiner, R. Spranger, G. Bartsch. Safer transurethral resection of the prostate: coagulating intermittent cutting reduces hemostatic complications. J Urol. 2004;171:289-291 Crossref.
  • [24] A. Westenberg, P. Gilling, K. Kennett, C. Frampton, M. Fraundorfer. Homium laser resection of the prostate versus transurethral resection of the prostate: results of a randomized trial with 4-year minimum long-term followup. J Urol. 2004;172:616-619 Crossref.
  • [25] R.M. Kuntz, S. Ahyai, K. Lehrich, A. Fayad. Transurethral holmium laser enucleation of the prostate versus transurethral electrocautery resection of the prostate: A randomized prospective trial in 200 patients. J Urol. 2004;172:1012-1016 Crossref.
  • [26] G. Muzzonigro, G. Milanese, D. Minardi, M. Yehia, A.B. Galosi, M. Dellabella. Safety and efficacy of transurethral resection of prostate glands up to 150ml: a prospective comparative study with 1 year of followup. J Urol. 2004;172:611-615 Crossref.
  • [27] H. Singh, M. Desai, P. Shrivastav, K. Vani. Bipolar versus monopolar transurethral resection of prostate: randomized controlled study. J Endourol. 2005;19:333A-338A
  • [28] F. Millan-Rodriguez, Izquierdo-Latorre, M. Montileo-Gonzales, F. Rousaud-Baron, A. Rousaud-Baron, H. Villavicencio-Mavrich. Treatment of bladder stones without associated prostate surgery: results of a prospective study. Urology. 2005;66:505-509 Crossref.
  • [29] R.M. Nesbit. Transurethral prostatectomy. (Thomas Springfield, 1943)
  • [30] R.H. Flocks, D. Culp. Surgical urology. (Yearbook publishers, Chicago, 1954)
  • [31] W. Mauermayer. Die transurethralen Operationen. (Lehmanns, München, 1962)
  • [32] R. Hartung, F. May. Die transurethrale Elektroresektion der Prostata. Akt Urol. 2002;33:469-482 Crossref.
  • [33] H.J. Reuter, L.W. Jones. Physiologic low pressure irrigation for transurethral resection: suprapubic trocar drainage. J Urol. 1974;111:210-213
  • [34] J.J. Iglesias, U.K. Stams. Das neue Iglesias-Resektoskop. Urologe A. 1975;14:229-231
  • [35] P. Faul. Video-TUR: raising the gold standard. Eur Urol. 1993;24:256-261
  • [36] R. Hartung, H. Leyh, C. Liapi, K. Fastenmeier, M. Barba. Coagulating intermittent cutting. Improved high-frequency surgery in transurethral prostatectomy. Eur Urol. 2001;39:676-681 Crossref.
  • [37] A.P. Perlmutter, G. Vallancien. Thick loop transurethral resection of the prostate. Eur Urol. 1999;35:161-165 Crossref.
  • [38] D.M. Weiner, S.A. Kaplan. Electrosurgery: VaporTrode. Eur Urol. 1999;35:166-172 Crossref.
  • [39] M.S. Michel, K.U. Köhrmann, A. Weber, A.W. Krautschick, P. Alken. Rotoresect: New technique for resection of the prostate. Experimental phase. J Endourol. 1996;10:473-478 Crossref.
  • [40] M. Alschibaja, F. May, U. Treiber, R. Paul, R. Hartung. Transurethral resection for benign prostatic hyperplasia. Current developments. Urologe A. 2005;44:499-504 (Engl. Abstract) Crossref.
  • [41] G. Wendt-Nordahl, A. Häcker, O. Reich, B. Djavan, P. Alken, M.S. Michel. The Vista system: a new bipolar resection device for endourological procedures: comparison with conventional resectoscope. Eur Urol. 2004;46:586-590 Crossref.
  • [42] A. Tefekli, A.Y. Muslumanoglu, M. Baykai, M. Binbay, A. Tas, F. Altunrende. A hybrid technique using bipolar energy in transurethral prostate surgery: a prospective, randomized comparison. J Urol. 2005;174:1339-1343 Crossref.
  • [43] J.S. Starkman, R.A. Santucci. Comparison of bipolar resection of the prostate with standard transurethral prostatectomy: shorter stay, earlier catheter removal and fewer complications. BJU Int. 2005;95:69-71 Crossref.
  • [44] J. Rassweiler, T. Frede, O. Seemann, M. Schulze. Medium power Ho:YAG lasers. N.P. Gupta, R. Kumar (Eds.) Holmium laser – Endourological applications (B.I. Publications, New Dehli, 2003) 58-61
  • [45] S.R. Keoghane, M.E. Sullivan, H.A. Doll, J. Kourambas, D.W. Cranston. Five year data from the Oxford laser prostatectomy trial. BJU Int. 2000;86:227-228 Crossref.
  • [46] A.J. Costello, J.N. Kabalin. Side-firing Neodymium:YAG laser prostatectomy. Eur Urol. 1999;35:138-146 Crossref.
  • [47] A. Bachmann, R. Ruszat, S. Wyler, O. Reich, H.H. Seifert, A. Müller, T. Susler. Photoselective vaporization of the prostate: The Basel experience after 108 procedures. Eur Urol. 2005;47:798-804 Abstract, Full-text, PDF, Crossref.
  • [48] F. Michel, T. Dubruille, J.-P. Cercueil, P. Paparel, F. Cognet, D. Krause. Arterial embolization for massive hematruria following transurethral prostatectomy. J Urol. 2002;168:2550-2552
  • [49] A. Colau, J.C. Lucet, P. Rufat, H. Botto, G. Benoit, A. Jardin. Incidence and risk factors of bacturia after transurethral resection of the prostate. Eur Urol. 2001;39:272-276 Crossref.
  • [50] B. Djavan, S. Madersbacher, C. Klingler, M. Marberger. Urodynamic assessment of patients with acute urinary retention: is treatment failure after prostectomy predictable?. J Urol. 1997;158:1829-1833 Crossref.
  • [51] C. Theodorou, G. Moutzouris, D. Floratos, D. Plastiras, C. Katsifotis, N. Mertziotis. Incontinence after surgery for benign prostatic hypertrophy: the case for complex approach and treatment. Eur Urol. 1998;33:370-375 Crossref.
  • [52] Wasson JH, Reda DJ, Bruskewitz RC, Ellison J, Kelly N, Henderson WG for the Veterans affairs cooperative study grosup on transurethral resection of the prostate. N Engl J Med 1995;322: 75–9.
  • [53] W.A. Hübner, O.M. Schlarp. Treatment of incontinence after prostatectomy using a new minimally invasive device: adjustable continence therapy. BJU Int. 2005;96:587-594
  • [54] J.J.M.C.H. de la Rosette, A.R. Zlotta. Future perspectives. Eur Urol. 1999;35:173-176 Crossref.

Footnotes

a Department of Urology, SLK Kliniken Heilbronn, University of Heidelberg, Germany

b Department of Urology, Auguste Victoria Klinikum Berlin, Germany

c Department of Urology, Phillips-University Marburg, Germany

lowast Corresponding author. Department of Urology, SLK Kliniken Heilbronn, Am Gesundbrunnen 20, D 74078 Heilbronn, Germany. Tel. +49 7131 492401; Fax: +49 7131 492429.