Complications in 2200 Consecutive Laparoscopic Radical Prostatectomies: Standardised Evaluation and Analysis of Learning Curves

Incidence of Rectal Injury After Radical Prostatectomy: A Systematic Review and Meta-analysis

Context

Rectal injury (RI) is a dreaded complication after radical prostatectomy (RP), increasing the risk of early postoperative complications, such as bleeding and severe infection/sepsis, and late sequelae, such as a rectourethral fistula (RUF). Considering its traditionally low incidence, uncertainty remains as to predisposing risk factors and management.

Objective

To examine the incidence of RI after RP in contemporary series and to propose a pragmatic algorithm for its management.

Evidence acquisition

A systematic literature search was performed using the Medline and Scopus databases. Studies reporting data on RI incidence were selected. Subgroup analyses were conducted to assess the differential incidence by age, surgical approach, salvage RP after radiation therapy, and previous benign prostatic hyperplasia (BPH)-related surgery.

Evidence synthesis

Eighty-eight, mostly retrospective noncomparative, studies were selected. The meta-analysis obtained a pooled RI incidence of 0.58% (95% confidence interval [CI] 0.46-0.73) in contemporary series with significant across-study heterogeneity (I² = 100%, p < 0.00001). The highest RI incidence was found in patients undergoing open RP (1.25%; 95% CI 0.66-2.38) and laparoscopic RP (1.25%; 95% CI 0.75-2.08) followed by perineal RP (0.19%; 95% CI 0-276.95) and robotic RP (0.08%; 95% CI 0.02-0.31). Age ≥60 yr (0.56%; 95% CI 0.37-06) and salvage RP after radiation therapy (6.01%; 95% CI 3.99-9.05), but not previous BPH-related surgery (4.08%, 95% CI 0.92-18.20), were also associated with an increased RI incidence. Intraoperative versus postoperative RI detection was associated with a significantly decreased risk of severe postoperative complications (such as sepsis and bleeding) and subsequent formation of a RUF.

Conclusions

RI is a rare, but potentially devastating, complication following RP. RI incidence was higher in patients ≥60 yr of age, and in those who underwent open/laparoscopic approach or salvage RP after radiation therapy. Intraoperative RI detection and repair apparently constitute the single most critical step to significantly decrease the risk of major postoperative complications and subsequent RUF formation. Conversely, intraoperatively undetected RI can lead more often to severe infective complications and RUF, the management of which remains poorly standardised and requires complex procedures.

Patient summary

Accidental rectum tear is a rare, but potentially devastating, complication in men undergoing prostate removal for cancer. It occurs more often in patients aged 60 yr or older as well as in those who underwent prostate removal via an open/laparoscopic approach and/or prostate removal after radiation therapy for recurrent disease. Prompt identification and repair of this condition during the initial operation are the key to reduce further complications such as the formation of an abnormal opening between the rectum and the urinary tract.

Management with Santorini’s Plexus Should Be Personalized during Prostatectomy

The aim of this study is to compare the results of laparoscopic prostatectomy in terms of management with Dorsal Venosus Complex (DVC)/Santorini’s plexus as it is still an open question in the field of urology. For this purpose, 457 patients after prostatectomy derived from two high volume centers were compared. In one center, patients underwent DVC ligation in all cases, whereas in the second center, this step was omitted. Subsequently, the histological and functional results were compared. Results showed that DVC management has an impact on blood loss and the duration of the surgery. In addition, omitting DVC ligation is demonstrated to reduce positive margin rate within the apex if the cancer was localized in this region. The continence and erectile function were similar in the 12-month follow up.

Learning curves in laparoscopic and robot-assisted prostate surgery: a systematic search and review

PURPOSE

To perform a systematic search and review of the available literature on the learning curves (LCs) in laparoscopic and robot-assisted prostate surgery.

METHODS

Medline was systematically searched from 1946 to January 2021 to detect all studies in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement, reporting on the LC in laparoscopic radical prostatectomy (LRP), laparoscopic simple prostatectomy (LSP), robot-assisted radical prostatectomy (RARP) and robot-assisted simple prostatectomy (RSP).

RESULTS

In total, 47 studies were included for qualitative synthesis evaluating a single technique (LRP, RARP, LSP, RSP; 45 studies) or two techniques (LRP and RARP; 2 studies). All studies evaluated outcomes on real patients. RARP was the most widely investigated technique (30 studies), followed by LRP (17 studies), LSP (1 study), and RSP (1 study). In LRP, the reported LC based on operative time; estimated blood loss; length of hospital stay; positive surgical margin; biochemical recurrence; overall complication rate; and urinary continence rate ranged 40-250, 80-250, 58-200, 50-350, 110-350, 55-250, 70-350 cases, respectively. In RARP, the corresponding ranges were 16-300, 20-300, 25-200, 50-400, 40-100, 20-250, 30-200, while LC for potency rates was 80-90 cases.

CONCLUSIONS

The definition of LC for laparoscopic and robot-assisted prostate surgery is not well defined with various metrics used among studies. Nevertheless, LCs appear to be steep and continuous. Implementation of training programs/standardization of the techniques is necessary to improve outcomes.

[LAPAROSCOPIC RADICAL PROSTATECTOMY OF 926 PATIENTS AT THE HIROSHIMA ENDOUROLOGICAL ASSOCIATION]

(Objective) The aim of this study is to investigate the treatment outcome of laparoscopic radical prostatectomy (LRP). (Patients and methods) The study cohort consisted of 926 hormone-naïve patients with localized prostate cancer who underwent LRP at the Hiroshima Endourological Association from January 2007 to December 2016. (Results) The mean age was 69.4 years, the mean initial PSA was 9.1 ng/ml, and the mean follow-up period was 40.3 months. The D'Amico Risk Classification was Low: 232 cases, Intermediate: 344 cases, and High: 350 cases. Nerve preservation was performed bilaterally for 138 patients and unilaterally for 181 patients. The mean operative time was 181.0 minutes and the mean estimated blood loss was 360.7 ml. As the number of experienced cases increased, the operative time was significantly shorter and the estimated blood loss was significantly decreased. According to Clavien-Dindo classification, the ratio of perioperative complication degree IIIa or above was 4.0% (37 cases). The pathological results were Gleason score (GS) ≤6: 174 cases, GS7: 514 cases, GS ≥8: 232 cases, pT2≥: 704 cases, pT3a: 172 cases, pT3b: 47 cases, pT4: 3 cases, pN0: 917 cases, and pN1: 9 cases. Positive surgical margins were found in 278 cases (30.0%). The biochemical recurrence-free survival rate at 5 years was 78.1%. In multivariate analysis, age (≥70 yrs), initial PSA (≥10 ng/ml), biopsy GS (GS ≥8), cancer positive core ratio at biopsy (≥30%), pT (pT≥3), pathological GS (GS≥8), positive surgical margin and total number of patients in the facility were predictive factors of postoperative biochemical PSA recurrence. Younger age and nerve preservation were found to be predictive factors for the early recovery of urinary continence after surgery, with 88% regaining urinary continence at 12 months after surgery. (Conclusion) This study revealed the clinical outcome and appropriate candidates for LRP in Japanese patients.

Analysis of Learning Curve in Robot-Assisted Radical Prostatectomy Performed by a Surgeon

This study aimed to report the learning curve in robot-assisted radical prostatectomy (RARP) performed by one surgeon who is experienced in laparoscopic prostatectomies. The records of 145 RARP cases performed between 2015 and 2017 were evaluated retrospectively. Patients were divided into three groups: group 1 comprised the first 49 cases, group 2 comprised 50–88 cases, and the rest of the cases were assigned to group 3. Continence was defined as the necessity to use at least one pad during a day. Additionally, erectile function recovery was defined as having erection sufficient for sexual intercourse regardless of using a phosphodiesterase type 5 inhibitor. Continence and erectile function recovery were assessed during interviews at 3, 6, and 12 months after surgery. First, all procedures were successfully performed without conversions or blood transfusions. The median follow-up period was 22 months. Moreover, the median skin-to-skin operative time (OT) was 220 minutes. The median blood loss was 150 ml, and the mean hospital stay was 8.9 ± 3.87 days. The median prostate volume was 36 cm³. The overall positive surgical margin rate was 13.1%. Overall, 38 (26.2%) postoperative complications were observed, and 17.9% of them were graded as minor. Anastomotic leakage decreased significantly from group 1 to group 3 (26.5% and 7%, respectively). The continence recovery (0-1 pad) rates were 60.6%, 75.7%, and 84.9% at 3, 6, and 12 months after surgery, respectively. Subsequently, the erectile function recovery rates were 50.9% and 65.4% at 6 and 12 months after surgery, respectively. In conclusion, there are several types of learning curves for RARP. First, the shallowest learning curve was observed for the OT. Regarding the analysis of “advanced learning curve,” demonstrating the improvement of OT and blood loss is considered insufficient. Therefore, additional oncological and functional results that require a longer period of investigation are required.

Embarking with laparoscopic radical prostatectomy and dealing with the complications and collateral problems: A single-center experience

OBJECTIVE

The aim of the present study was to report our single-center initial experience in laparoscopic radical prostatectomy (LRP) with special emphasis on the complications and collateral problems and their management.

MATERIAL AND METHODS

A total of 48 patients (mean age 64 years) underwent LRP in our institution between August 2014 and July 2018. Two surgeons completed a fellowship training program for LRP before. Mentored operations started after the first 10 cases. The patients were divided in two groups of 30 (group I) and 18 (group II) patients. Demographic, preoperative, peroperative, and postoperative data were collected prospectively. Anesthesiology and nurses' team performances, as well as problems and their management, were reviewed.

RESULTS

The demographic data for both groups (group I vs. group II) were similar. Estimated blood loss (695.5±139.23 vs. 398±339.39 mL) and intraoperative complication rates (36.66% vs. 5.55%) were significantly (p<0.05) higher in group I. Conversion to open surgery occurred in 7 (20%) patients in group I and in 1 (5.55%) patient in group II. Continence rates at 12 (83%) months were similar in both groups. Positive surgical margins were 8.33% for pT2 and 27.1% for pT3 stages.

CONCLUSION

A validated fellowship program before starting LRP and performing the first cases under mentorship are helpful. The complication and conversion rates decrease after 30 cases in addition to the improved experience also with improved cooperation with the anesthesiologist and scrub nurse.

Using the Modified Clavien Grading System to Classify Complications of Percutaneous Nephrolithotomy

Purpose

A modified Clavien classification system has been proposed to grade perioperative complications. We share our experience in grading the complications of percutaneous nephrolithotomy (PNL), according to this new classification.

Methods

A total of 809 PNLs performed between 2010 and 2014 were reviewed retrospectively. The modified Clavien classification system, which classifies the perioperative complications into 5 grades, was applied. Grade wise comparison of complications between the patients with simple and complex calculi was done. We also carried out a univariate analysis of different predictors of complications after surgery.

Results

A total of 253 perioperative complications were observed in 237 (29.29%) patients. Most complications were related to bleeding and urinary leakage. Patients with complex calculi had significantly more number of complications across all Clavien groups. In a univariate analysis, positive preoperative urine culture and multiple access for stone clearance were identified to be the independent predictors of complications.

Conclusion

The modified Clavien system is a simplistic grading system for classification of postoperative complications. However, it suffers from various shortcomings. Therefore, till the proposition of a more comprehensive classification system, the modified Clavien system is useful for reporting the complications and short-term outcomes of PNL.

The influence of previous robotic experience in the initial learning curve of laparoscopic radical prostatectomy

Introduction:

This study analyzed the impact of the experience with Robotic-Assisted Laparoscopic Prostatectomy (RALP) on the initial experience with Laparoscopic Radical Prostatectomy (LRP) by examining perioperative results and early outcomes of 110 patients. LRPs were performed by two ro-botic fellowship trained surgeons with daily practice in RALP.

Patients and Methods:

110 LRP were performed to treat aleatory selected patients. The patients were divided into 4 groups for prospective analyses. A transperitoneal approach that simulates the RALP technique was used.

Results:

The median operative time was 163 minutes (110-240), and this time significantly decreased through case 40, when the time plateaued (p=0.0007). The median blood loss was 250mL. No patients required blood transfusion. There were no life-threatening complications or deaths. Minor complications were uniformly distributed along the series (P=0.6401). The overall positive surgical margins (PSM) rate was 28.2% (20% in pT2 and 43.6% in pT3). PSM was in the prostate apex in 61.3% of cases. At the 12-month follow-up, 88% of men were continent (0-1 pad).

Conclusions:

The present study shows that there are multiple learning curves for LRP. The shallowest learning curve was seen for the operative time. Surgeons transitioning between the RALP and LRP techniques were considered competent based on the low perioperative complication rate, absence of major complications, and lack of blood transfusions. This study shows that a learning curve still exists and that there are factors that must be considered by surgeons transitioning between the two techniques.

[Bladder neck sclerosis following prostate surgery : Which therapy when?]

Secondary bladder neck sclerosis represents one of the more frequent complications following endoscopic, open, and other forms of minimally invasive prostate surgery. Therapeutic decisions depend on the type of previous intervention (e.g., radical prostatectomy, TURP, HoLEP, radiotherapy, HIFU) and on associated complications (e.g., incontinence, fistula). Primary treatment in most cases represents an endoscopic bilateral incision. No specific advantages of any type of the applied energy (i.e., mono-/bipolar HF current, cold incision, holmium/thulium YAG laser) could be documented. Adjuvant measures such as injection of corticosteroids or mitomycin C have not been helpful in clinical routine. In case of first recurrence, a transurethral monopolar or bipolar resection can usually be performed. Recently, the ablation of the scared tissue using bipolar vaporization has been recommended providing slightly better long-term results. Thereafter, surgical reconstruction is strongly recommended using an open, laparoscopic, or robot-assisted approach. Depending on the extent of the bladder neck sclerosis and the underlying prostate surgery, a Y-V/T-plasty, urethral reanastomosis, or even a radical prostatectomy with new urethravesical anastomosis should be performed. Stent implantation should be reserved for patients who are not suitable for surgery. The final palliative measure is a cystectomy with urinary diversion or a (continent) cystostomy.

Evaluation of the economic and clinical feasibility of introducing rigid endoscopy and laparoscopy to a small animal general practice

OBJECTIVE To evaluate the economic and clinical feasibility of introducing rigid endoscopy and laparoscopy to a small animal general practice. DESIGN Prospective study. SAMPLE A single 2-veterinarian small animal practice in southern California. PROCEDURES In early 2012, endoscopic equipment was purchased, and both veterinarians in the practice undertook training in rigid endoscopic and laparoscopic procedures. Subsequently, information for client-owned animals that underwent endoscopic and laparoscopic procedures during a 12-month period (2012 to 2013) was collected. Cost of equipment and training, revenue generated, specific procedures performed, surgery time, complications, and client satisfaction were evaluated. RESULTS 78 endoscopic procedures were performed in 73 patients, including 71 dogs, 1 cat, and 1 rabbit. Cost of endoscopic and laparoscopic equipment and training in the first year was $14,809.71; most equipment was financed through a 5-year lease at a total cost of $57,507.70 ($ 10,675.20/y). Total revenue generated in the first year was $50,423.63. The most common procedures performed were ovariectomy (OVE; n = 49), prophylactic gastropexy (6), and video otoscopy (12). Mean ± SD surgery times for OVE (n = 44) and for OVE with gastropexy (5) were 63.7 ± 19.7 minutes and 73.0 ± 33.5 minutes; respectively. Twelve of 54 patients undergoing laparoscopic procedures experienced minor intraoperative complications. Conversion to laparotomy was not required in any patient. There were no major complications. All 49 clients available for follow-up were satisfied. CONCLUSIONS AND CLINICAL RELEVANCE With appropriate training and equipment, incorporation of basic rigid endoscopy and laparoscopy may be feasible in small animal general practice. However, results of the present study are not applicable to all veterinarians and practice settings, and patient safety considerations should always be paramount.

The Benefits and Harms of Different Extents of Lymph Node Dissection During Radical Prostatectomy for Prostate Cancer: A Systematic Review

CONTEXT

There is controversy regarding the therapeutic role of pelvic lymph node dissection (PLND) in patients undergoing radical prostatectomy for prostate cancer (PCa).

OBJECTIVE

To systematically review the relevant literature assessing the relative benefits and harms of PLND for oncological and non-oncological outcomes in patients undergoing radical prostatectomy for PCa.

EVIDENCE ACQUISITION

MEDLINE, MEDLINE In-Process, Embase, and the Cochrane Central Register of Controlled Trials were searched up to December 2015. Comparative studies evaluating no PLND, limited, standard, and (super)-extended PLND that reported oncological and non-oncological outcomes were included. Risk-of-bias and confounding assessments were performed. A narrative synthesis was undertaken.

EVIDENCE SYNTHESIS

Overall, 66 studies recruiting a total of 275,269 patients were included (44 full-text articles and 22 conference abstracts). Oncological outcomes were addressed by 29 studies, one of which was a randomized clinical trial (RCT). Non-oncological outcomes were addressed by 43 studies, three of which were RCTs. There were high risks of bias and confounding in most studies. Conflicting results emerged when comparing biochemical and clinical recurrence, while no significant differences were observed among groups for survival. Conversely, the majority of studies showed that the more extensive the PLND, the greater the adverse outcomes in terms of operating time, blood loss, length of stay, and postoperative complications. No significant differences were observed in terms of urinary continence and erectile function recovery.

CONCLUSIONS

Although representing the most accurate staging procedure, PLND and its extension are associated with worse intraoperative and perioperative outcomes, whereas a direct therapeutic effect is still not evident from the current literature. The current poor quality of evidence indicates the need for robust and adequately powered clinical trials.

PATIENT SUMMARY

Based on a comprehensive review of the literature, this article summarizes the benefits and harms of removing lymph nodes during surgery to remove the prostate because of PCa. Although the quality of the data from the studies was poor, the review suggests that lymph node removal may not have any direct benefit on cancer outcomes and may instead result in more complications. Nevertheless, the procedure remains justified because it enables accurate assessment of cancer spread.

Laparoscopic radical prostatectomy outcome data: how should surgeon's performance be reported? A retrospective learning curve analysis of two surgeons

Objective

To document the learning curve for the laparoscopic radical prostatectomy (LRP) procedure and discuss the optimal usage of prospectively documented outcome data for reporting a surgeon’s performance.

Materials and methods

Using prospectively collected data from the first series of patients to undergo LRP by two surgeons in the same institution, linear and logistic regression multivariate analyses per 25 patients were carried out to graphically represent the surgical learning curve for operative time, blood loss, complications, length of stay (LOS), and positive margins. Surgeon A carried out 275 operations between 2003–2009; Surgeon B carried out 225 between 2008–2012.

Results

Learning curves showing continuous improvement of each of the above outcomes were demonstrated for both cohorts. For surgeon A, a plateau was observed for LOS and T2 positive margins after 100 and 150 surgeries respectively. No such plateau was observed for surgeon B.

Conclusion

On documenting these learning curves and discussion of the reporting methods used, we concluded that the most informative outcome measure, with the least potential observer bias was T2 positive margins. Whether as a single measure or in combination with others, this has potential for use as an objective outcome representative of improvement in a surgeon’s skill over time.

Patient Safety Risks of Basic Urological Procedures Performed by Junior and Senior Residents

OBJECTIVE

To investigate the current performance of urological residents regarding basic urological procedures in relation to patient safety issues and the identification of specific training needs.

DESIGN

Observational data of 146 urethrocystoscopies (UCSs), 27 transrectal ultrasounds of the prostate (TRUSs), 38 transrectal ultrasound-guided prostatic biopsies (TRUSPs), and 30 transurethral resections of bladder tumor (TURBTs) were collected. Performance was evaluated using scoring lists including details on completeness of procedural steps, level of independence, time, and the incidence of unintended events. The causal factors contributing to the unintended events were identified by 2 expert urologists and classified according to the recognized PRISMA method.

SETTING

This study was performed in 5 teaching hospitals in the Netherlands.

PARTICIPANTS

We included 11 junior residents and 5 senior residents in urology in the final study cohort.

RESULTS

Senior residents showed a lower degree of completeness in material usage than junior residents did during UCS (p < 0.01) and in preparation, material usage, and procedure during TRUSP (all p < 0.05). In UCS and TURBT, senior residents received significantly less feedback than junior residents did (both p < 0.01). Incidence of unintended events for junior vs senior residents was 11% and 4% in UCS, 0% and 7% in transrectal ultrasound of the prostate, 36% and 62% in TRUSP, and 41% and 23% in TURBT, respectively. Overall, unintended events were mainly caused by human factors, in particular, verification and skills-based issues.

CONCLUSION

Present performance of basic urological procedures involves a high percentage of unintended events, especially in TRUSP and TURBT, which are mainly caused by human factors and are a potential threat for patient safety. Junior residents are less independent but more thorough in the performance of UCS and TRUSP than senior residents are. Targeted skills training including assessment should be implemented before privileges for independent practice are granted to reduce the incidence of unintended events and optimize patient safety.

Minimum 5-year follow-up of 1138 consecutive laparoscopic radical prostatectomies

OBJECTIVES

To investigate the long-term outcomes of laparoscopic radical prostatectomy (LRP).

PATIENTS AND METHODS

In all, 1138 patients underwent LRP during a 163-month period from 2000 to 2008, of which 51.5%, 30.3% and 18.2% were categorised into D'Amico risk groups of low-, intermediate- and high-risk, respectively. All intermediate- and high-risk patients were staged by preoperative magnetic resonance imaging or computed tomography and isotope bone scanning, and had a pelvic lymph node dissection (PLND), which was extended after April 2008. The median (range) patient age was 62 (40-78) years; body mass index was 26 (19-44) kg/m(2) ; prostate-specific antigen level was 7.0 (1-50) ng/mL and Gleason score was 6 (6-10). Neurovascular bundle was preservation carried out in 55.3% (bilateral 45.5%; unilateral 9.8%) of patients.

RESULTS

The median (range) gland weight was 52 (14-214) g. The median (range) operating time was 177 (78-600) min and PLND was performed in 299 patients (26.3%), of which 54 (18.0%) were extended. The median (range) blood loss was 200 (10-1300) mL, postoperative hospital stay was 3 (2-14) nights and catheterisation time was 14 (1-35) days. The complication rate was 5.2%. The median (range) LN count was 12 (4-26), LN positivity was 0.8% and the median (range) LN involvement was 2 (1-2). There was margin positivity in 13.9% of patients and up-grading in 29.3% and down-grading in 5.3%. While 11.4% of patients had up-staging from T1/2 to T3 and 37.1% had down-staging from T3 to T2. One case (0.09%) was converted to open surgery and six patients were transfused (0.5%). At a mean (range) follow-up of 88.6 (60-120) months, 85.4% of patients were free of biochemical recurrence, 93.8% were continent and 76.6% of previously potent non-diabetic men aged <70 years were potent after bilateral nerve preservation.

CONCLUSIONS

The long-term results obtainable from LRP match or exceed those previously published in large contemporary open and robot-assisted surgical series.

Oncologic results, functional outcomes, and complication rates of transperitoneal robotic assisted radical prostatectomy: single centre's experience

BACKGROUND

We report the operative details and short term oncologic and functional outcome of the first 334 Robotic-assisted radical prostatectomy experiences for organ confined prostate cancer

METHODS

From August 2009 to December 2012, details of 334 consecutive patients were retrospectively analyzed. The analyzed parameters included: preoperative, per-operative characteristics, postoperative minor and major complications, positive surgical margin continence, potency, and biochemical progression at the follow-up period.

RESULTS

The classical extrafascial, interfascial, intrafascial and fascia sparing radical prostatectomy were performed in 31, 41, 200, and 62 cases, respectively. The mean operation time was 213.8±90.1minutes, and the mean estimated blood loss was 116.1±58.9cc during operation. A nerve-sparing procedure was performed bilaterally in 198 (59.3%) cases and unilaterally in 126 (37.7%) cases. The catheter was removed on postoperative day 9, 1±1.9. Surgical margin was positive in 36 (10.7%) patients. The overall, pT2, pT3a and pT3b PSM rates were 8 (2.4%), 12 (3.6%), 16 (4.8%) respectively and PSM and BCR rates were not statistically different among four approach (P>.05). At the follow-up period, the continence rates were 74.4%, 80.4%, 80.5%, and 96.7% (P<.001), and previously potent patients' potency rates were 64.3%, 66.6%, 68.1%, and 74.5% (P>.05), in classic extrafascial, interfascial, intrafascial, and fascia sparing intrafascial prostatectomy, respectively.

CONCLUSION

RARP is a safe and feasible technique in treatment of localized prostate cancer. Fascia sparing approach has better continence rate. This results need to be supported by new prospective, randomized studies.

Impact of barbed suture in controlling the dorsal vein complex during laparoscopic radical prostatectomy

OBJECTIVE

To compare applications of unidirectional knotless barbed suture and traditional two single polyglactin sutures for dorsal vein complex (DVC) control during laparoscopic radical prostatectomy (LRP).

MATERIAL AND METHODS

This was a non-randomized, prospective matched-pair pilot study. Thirty-one LRP cases with barbed suture (V-Loc®) were match-paired with 31 LRP cases in which traditional two single polyglactin stitches according to patient's prostate volume and body mass index (BMI) were used. Time needed for DVC ligation, DVC control and operation time were recorded. Peri- and postoperative parameters were noted. Statistical analyses were performed.

RESULTS

Mean age was 65.4±6.3 years. Mean follow-up was 20.2±3.3 months. Mean BMI and prostate volume were similar in both groups. Mean preoperative clinical stage, Gleason score, and PSA were comparable between both groups. Mean DVC ligature time and mean DVC controlling time in group 1 were statistically shorter than in group 2 (p=0.04, p<0.001). Continence rates were significantly higher in group 1 than in group 2 in early follow-up (p=0.005).

Oncologic results, functional outcomes, and complication rates of robotic-assisted radical prostatectomy: multicenter experience in Turkey including 1,499 patients

BACKGROUND

Robot-assisted radical prostatectomy (RARP) is a rising minimally invasive treatment of localized prostate cancer (PC). We present our multicenter experience of 1,499 consecutive cases with an analysis of complication rates, oncologic, and functional outcomes.

PATIENTS AND METHODS

From March 2005 through December 2012, details of 1,499 patients were retrospectively analyzed. Transperitoneal approach using a da-Vinci robotic system was used to perform RARP. Perioperative characteristics and postoperative oncologic and functional outcomes are reported.

RESULTS

The mean age was 61.3 years (37-77). Mean PSA level was 8.3 ng/ml. According to D'Amico classification, the percentage of patients with low-, intermediate-, and high-risk disease cases were 65.0, 30.1, and 4.8 %, respectively. Mean operative time was 181.9 min. Mean estimated blood loss was 225.4 cc (30-1,250). Positive surgical margin (PSM) was detected in 212 (14.1 %) patients. PSM rates in pT2, pT3, and pT4 stages were 6.1, 37.1, and 100 %, respectively. The overall complication rate due to modified Clavien classification was 6.1 %. Mean follow-up time was 26.7 months. Continence, potency, and biochemical recurrence rates were 88.7, 58.2, and 2.9 %, respectively.

CONCLUSIONS

Our analyses including high-volume centers, which is the first largest series in Turkey, show that RARP is a safe procedure, has low PSM rates, high continence, and potency rates for the treatment of localized PC at experienced centers.

A novel surgical technique for preserving the bladder neck during robot-assisted laparoscopic radical prostatectomy: preliminary results

PURPOSE

To describe our new surgical technique for preserving the bladder neck during robot-assisted laparoscopic prostatectomy (RALP) and to present the anatomy between the bladder neck and prostate.

METHODS

Between December 2012 and May 2014, 52 RALPs were performed at our institute. Demographic, perioperative, and postoperative data were recorded. Quality of life (QoL) scores were assessed before RALP, after urethral catheter removal, and at the first month after RALP. Fatty connective tissue between bladder neck and prostate was introduced, and circular muscle fibers of the internal sphincter were seen in all patients. Complications were classified according to the Clavien-Dindo classification. Statistical analyses were performed.

RESULTS

Mean follow-up was 9.6±5.2 months; mean age was 61.1±6.5 years. Our novel surgical technique for preserving the bladder neck was performed in 52 patients, and they were continent after catheter removal; mean duration of the catheter was 9.4±1.4 days. There was a significant difference in QoL before RALP and after catheter removal, however, but there was no statistical difference between before and 1 month after RALP (respectively; P<0.001, P=0.5). Furthermore, there was no complication related to the bladder neck such as bladder neck stricture, acute/chronic urinary retention, as well as no Clavien III, IV, and V complications. In addition, conventional laparoscopy and/or open surgery was not needed in any of the RALP cases.

CONCLUSION

Our novel technique provided very early continence at the time of catheter removal after RALP within short-term follow-up. This can help early recovery and develop QoL scores after RALP.

Impact of body mass index on outcomes of laparoscopic radical prostatectomy with long-term follow-up

OBJECTIVE

The aim of this study was to investigate the impact of body mass index (BMI) on the functional and oncological results of patients who had undergone laparoscopic radical prostatectomy (LRP).

MATERIAL AND METHODS

In total, 1224 patients with follow-up data (>24 months) were enrolled. Patients were divided into three groups according to BMI (kg/m(2)) as: group 1 (normal, BMI <25, n = 425), group 2 (overweight, 25 ≤ BMI <30, n = 594) and group 3 (obese, BMI ≥ 30, n = 205). Demographic, intraoperative and postoperative data with oncological outcomes were recorded. The impact of obesity on those parameters was evaluated and statistical analyses were performed.

RESULTS

Mean age was 63.8 ± 6.1 years and mean follow-up was 43.1 ± 25.1 months (mean ± SD). There were 425 (34.7%) patients in group 1, 594 (48.5%) in group 2 and 205 (16.8%) in group 3. Operation time, clinical stage and estimated blood loss were significantly higher in group 3 than in the other groups (p < 0.001, p = 0.001 and p = 0.001, respectively). Bilateral nerve-sparing rate and bladder neck-sparing rate were significantly decreased in group 3 compared with the other groups (p = 0.001 and p < 0.038, respectively). Statistically significantly higher pathological stage, tumour volume, positive surgical margin and Gleason scores were determined in group 3 compared with the other groups (p = 0.023, p = 0.018, p = 0.009 and p = 0.028, respectively). There were similar urinary continence rates among the groups. The rate of penetration with or without medication was significantly lower in group 3 than in the other groups (p = 0.593 and p = 0.007, respectively).

CONCLUSIONS

LRP seemed safe and effective in obese patients, with similar mean overall survival, cancer-specific survival, complication rates and continence rates to normal weight patients in the long term.

Optimization of an early discharge program after laparoscopic radical prostatectomy

OBJECTIVE

To assess the safety of hospital discharge 24 hours after laparoscopic radical prostatectomy and to identify possible factors associated with longer hospital stays.

MATERIAL AND METHODS

Retrospective study of patients diagnosed with localized prostate cancer underwent to laparoscopic radical prostatectomy consecutively between May of 2007 and December of 2010. Those patients who met the following requirements were discharged in less than 24 hours: absence of complications, drainage debit minor than 50 cc, normal oral tolerance, no significant bladder haematuria and good functional recovery. Logistic regression analysis was conducted in order to assess the possible associated variables with longer hospital stays.

RESULTS

A total of 266 patients were analysed. The follow-up median was 34 months. Eighty patients (30.1%) were discharged in less than 24 hours. Average stay (SD) of all series was 2.9 days (3.08). Solely HTA, neurovascular bundles sparing and the development of lymphadenectomy were statistically significant between both groups in univariate analysis (discharge<24 hours vs. discharge>24 hours). In multivariate analysis, only HTA (OR=1.98 [CI 95%:1.13-3.47], P=.016) and lymphadenectomy performance (OR=2.56 [CI 95%:1.18-5.56] P=.017) were independent predictive variables of hospital stays longer than 24 hours.

CONCLUSIONS

Early hospital discharge of patients underwent to LRP is feasible and safe. In our series, the lymphadenectomy performance and the HTA were associated factors to longer hospital stay.

Effect of perioperative complications and functional outcomes on health-related quality of life after radical prostatectomy

PURPOSE

Radical prostatectomy is a commonly performed procedure with perioperative complication rates of 30 % using standardized reporting methodology. We aim to determine whether perioperative complications and functional outcomes impact quality of life 1 year after surgical treatment.

PATIENTS AND METHODS

Quality of life, functional and oncological outcomes were assessed in patients who underwent open retropubic radical prostatectomy at a single academic institution between 2003 and 2009, preoperatively and 1 year after surgery using the EORTC QLQ-C30, the IIEF-5 and an institutional questionnaire. Perioperative complications were recorded using the Clavien-Dindo classification. Patients without complications were compared to patients with any, low- or high-grade complications. The global health score domain of the EORTC QLQ-C30 is reported for various oncological and functional outcomes and contrasted to stratified categories of complications and functional outcomes.

RESULTS

A full dataset was available for 29.5 % (n = 856) of all patients. The overall complication rate was 27.5 % (235/856). A total of 307 complications were recorded of whom 88.9 % (273/307) were low grade. In this study, population global health perception did not decline after surgery (70.5 ± 21.2 vs. 74.4 ± 19.7; p < 0.0001). Complications showed only statistical but no clinical meaningful influence on global health perception as well as on functional and symptom scales. Patients who met combined outcome criteria experienced the best postoperative global health score (86.0 ± 13.1 and 86.0 ± 14.2).

CONCLUSIONS

Perioperative complications and functional outcomes have a measurable impact on quality of life 1 year following surgery. While perioperative complications have a statistical effect, functional outcomes showed a clinically more profound effect on postoperative global health perception.

Development of urologic laparoscopy in Germany, Austria, and Switzerland: a survey among urologists

PURPOSE

Laparoscopy introduction has dramatically changed urology. Novel techniques, such as laparoendoscopic single-site surgery (LESS) and natural orifice translumenal endoscopic surgery (NOTES), might also have substantial influence. This 2012 survey evaluated present laparoscopy use, its appraisal among urologic surgeons, laparoscopy training, and use of new techniques. Results were compared to the previous surveys, demonstrating the 10-year development of laparoscopy.

METHODS

A detailed questionnaire regarding demographic data, laparoscopy use, attitudes concerning laparoscopy, and novel techniques was send to 424 departments in Germany, Austria, and Switzerland. Procedures performed in 25 indications were quantitatively evaluated.

RESULTS

The response rate was 63 % (269). Eighty-six percent of the respondents reported performing laparoscopy, compared to 54 % in 2002. Only 16 % expected economic advantages with laparoscopy, whereas 67 % expected shorter hospitalization. Seventy percent of responders anticipated comparable functional and oncological results between laparoscopic procedures and open surgery. Slow learning curves (81 %) and insufficient training facilities (32 %) were reported to impair laparoscopic surgery. On average, laparoscopic and non-laparoscopic surgical teams consisted of 2.5 and 3.5 members, respectively. LESS procedures were performed at 15 % of institutions. Twenty-two percent of respondents considered NOTES techniques valuable for future urology. Few indications (laparoscopic prostatectomies or nephrectomies) were performed frequently in specialized centers, and the rapidly increasing procedure numbers observed between 2002 and 2007 had dropped to a mild accretion. The results demonstrate broad acceptance of laparoscopy in German urologic surgery, depict the need for structured training facilities, and indicate limited impact of novel techniques (LESS and NOTES).

CONCLUSIONS

The survey demonstrates the 10-year development of urologic laparoscopy and the broad acceptance of laparoscopic techniques.

Analysis of the pentafecta learning curve for laparoscopic radical prostatectomy

PURPOSE

Laparoscopic radical prostatectomy (LRP) has a long learning curve; however, little is known about the pentafecta learning curve for LRP. We analysed the learning curve for a fellowship trained surgeon with regard to the pentafecta with up to 6-year follow-up.

METHODS

A retrospective review was performed in 550 cases, by dividing these cases into 11 groups of 50 patients. Outcomes analysed were the following: (1) the pentafecta (complication rate, positive surgical margin (PSM) rate, continence, potency and biochemical recurrence); (2) operative time and blood loss; and (3) overall pentafecta attainment.

RESULTS

The mean complication rate for the entire series was 9 %; this plateaued after 150 cases. The overall PSM rate for the series was 23.5 %, 16.3 % for pT2 and 40.5 % for pT3. PSM plateaued after 200 cases. Excluding the first 100 cases, the overall PSM rate for pT2 was 10.9 % and 37.8 % for pT3. The continence rate stabilised after approximately 250 cases. The rate of male sling/artificial urinary sphincter plateaued after 200 cases. The potency learning curve continues to improve after 250 cases of nerve-sparing (ns) endoscopic extraperitoneal radical prostatectomy (EERPE) as does the pentafecta learning curve which closely follows the pattern of the potency learning curve. The last group of nsEERPE achieved pentafecta in 63 %.

CONCLUSION

This study shows multiple learning curves: an initial for peri-operative outcomes, then stabilisation of oncologic outcomes and the final for stabilisation of functional outcomes. In this series over 250 cases were required to achieve the learning curve.

Abdominal wall haemorrhage after robotic-assisted radical prostatectomy: is it a complication of robotic surgery?

OBJECTIVE

Robotic-assisted radical prostatectomy (RARP) is the minimally invasive surgical treatment for patients with localized prostate cancer. Perioperative or postoperative complications following RARP have been reported in some studies and severe postoperative bleeding after RARP is rare, but hemodynamic instability may necessitate open surgical exploration and be associated with considerable morbidity. We reported postoperative bleeding cases, which is a kind of complication associated with robotic surgery and requiring massive transfusion after RARP.

PATIENTS AND METHODS

From August 2009 to May 2012, 317 consecutive patients who underwent RARP performed at our institution were analyzed. Patients with serious postoperative bleeding that caused hemodynamic instability after surgery were enrolled.

RESULTS

A total of 5 among 317 (1.6%) patients had bleeding requiring postoperative transfusion. In these cases, mean operative time was 114 min. The mean estimated blood loss was 110 ml during operation. In these patients, hematocrit (Hct) levels gradually fell after surgery and ecchymosis was detected on the side and posterior walls of the abdomen on the second day. The mean preoperative Hct was 44.3% and mean lowest Hct was 23.1%. All patients were successfully treatment without surgical exploration.

CONCLUSIONS

Robotic radical prostatectomy has proven to be a safe surgical treatment with low morbidity. However, postoperative bleeding can reach serious problems. This is the first study to explain haemorrhage, associated with possible risk of robotic surgery.

Learning curves for urological procedures: a systematic review

OBJECTIVE

To determine the number of cases a urological surgeon must complete to achieve proficiency for various urological procedures.

PATIENT AND METHODS

The MEDLINE, EMBASE and PsycINFO databases were systematically searched for studies published up to December 2011. Studies pertaining to learning curves of urological procedures were included. Two reviewers independently identified potentially relevant articles. Procedure name, statistical analysis, procedure setting, number of participants, outcomes and learning curves were analysed.

RESULTS

Forty-four studies described the learning curve for different urological procedures. The learning curve for open radical prostatectomy ranged from 250 to 1000 cases and for laparoscopic radical prostatectomy from 200 to 750 cases. The learning curve for robot-assisted laparoscopic prostatectomy (RALP) has been reported to be 40 procedures as a minimum number. Robot-assisted radical cystectomy has a documented learning curve of 16-30 cases, depending on which outcome variable is measured. Irrespective of previous laparoscopic experience, there is a significant reduction in operating time (P = 0.008), estimated blood loss (P = 0.008) and complication rates (P = 0.042) after 100 RALPs.

CONCLUSIONS

The available literature can act as a guide to the learning curves of trainee urologists. Although the learning curve may vary among individual surgeons, a consensus should exist for the minimum number of cases to achieve proficiency. The complexities associated with defining procedural competence are vast. The majority of learning curve trials have focused on the latest surgical techniques and there is a paucity of data pertaining to basic urological procedures.

Changing surgical approaches for laparoscopic adrenalectomy: single-surgeon data of a 6-year experience

AIM

To evaluate outcomes of laparoscopic adrenalectomy (LA) and laparoendoscopic single-site surgery (LESS) for adrenal masses in the light of changing laparoscopic surgical techniques.

MATERIALS AND METHODS

Seventy-three patients were analyzed retrospectively. There were 2 groups; group 1 included patients who had conventional transperitoneal LA and transperitoneal LESS, and group 2 included patients who had lateral retroperitoneal LA, retroperitoneal LA in prone position, and retroperitoneal LESS. Demographic data, urine 3-methoxy-4-hydroxymandelic acid, normetanephrine, epinephrine, serum cortisol, aldosterone, adrenocorticotropic hormone, American Society of Anesthesiologists score, side and size of mass, conversion to open surgery, complications, estimated blood loss, operation time, pathological results were recorded and analyzed.

RESULTS

There was no difference in demographic data and serum parameters between both groups. Tumor size, estimated blood loss, operation time, transfusion rate and hospital stay were less for group 2 (p < 0.05, p = 0.0001). However, the complication rate was similar in both groups; in retroperitoneal prone position, the complication rate was less than for other surgical approaches, but statistically significant results could not be assessed.

CONCLUSIONS

Even if the diameter of adrenal mass is larger than 6 cm, LA may be considered as the gold standard. The retroperitoneal approach especially in prone position may be a promising treatment method in the near future for adrenalectomy in selected patients.

Robotic surgery: review of prostate and bladder cancer

Minimally invasive laparoscopic surgery has become to replace many of the open procedures in urology because of the obvious benefits in perioperative morbidity. However, because of the technical challenges and steep learning curve, the adoption of laparoscopy has been limited to only highly skilled laparoscopic surgeons. The introduction of the da Vinci surgical system (Intuitive Surgical Inc, Sunnyvale, Calif) has offered significant technical advantages over laparoscopic surgery. Because of the wide acceptance of robotic-assisted radical prostatectomy over the past decade, it has paved the way for urologists to tackle other complex operations, such as a radical cystectomy to decrease the morbidity of the operation. The goal of this article was to review the history and discuss the application and current status of the robot in both prostate and bladder cancer management. We present our technique of performing a robotic-assisted radical prostatectomy and the application of the robust prostate experience to robotic cystectomy.

Clavien classification in urology: Is there concordance among post-graduate trainees and attending urologists?

PURPOSE

We assess the variations between post-graduate trainees (PGTs) and attending urologists in applying the Revised Clavien-Dindo Classification System (RCCS) to urological complications.

METHODS

Twenty postoperative complications were selected from urology service Quality Assurance meeting minutes spanning 1 year at a tertiary care centre. The cases were from adult and pediatric sites and included minor and major complications. After a briefing session to review the RCCS, the survey was administered to 16 attending urologists and 16 PGTs. Concordance rates between the two groups were calculated for each case and for the whole survey. Inter-rater agreement was calculated by kappa statistics.

RESULTS

There was good overall agreement rate of 81 % (range: 30-100) when both groups were compared. Thirteen of the 20 cases (65%) held an agreement rate above 80% (k = 0.753, p < 0.001) including 3 (15%) cases with 100% agreement. There were only 2 cases where the scores given by PGTs were significantly different from that given by attending urologists (p ≤ 0.03). There was no significant difference between both groups in terms of overall RCCS grades (p = 0.12). When all participants were compared as one group, there was good overall inter-rater agreement rate of 75% (k = 0.71). Although the percent of overall agreement rate among PGTs was higher than the attending urologists (82% [k = 0.79] vs. 69% [k = 0.64]), this was not significantly different (p = 0.68).

CONCLUSION

There was good overall agreement among PGTs and attending urologists in application of the RCCS in urology. Therefore, it is appropriate for PGTs to complete the Quality Assurance meeting reports.

Laparoscopic radical prostatectomy: the learning curve of a low volume surgeon

OBJECTIVE

Analyze the learning curve for laparoscopic radical prostatectomy in a low volume program.

MATERIALS AND METHODS

A single surgeon operated on 165 patients. Patients were consecutively divided in 3 groups of 55 patients (groups A, B, and C). An enhancement of estimated blood loss, surgery length, and presence of a positive surgical margin were all considered as a function of surgeon's experience.

RESULTS

Operative time was 267 minutes for group A, 230 minutes for group B, and 159 minutes for group C, and the operative time decreased over time, but a significant difference was present only between groups A and C (P < 0.001). Mean estimated blood loss was 328 mL, 254 mL, and 206 mL (P = 0.24). A conversion to open surgery was necessary in 4 patients in group A. Positive surgical margin rates were 29.1%, 21.8%, and 5.5% (P = 0.02). Eight patients in group A, 4 patients in group B, and one in group C had biochemical recurrence.

CONCLUSION

Significantly less intraoperative complications were evident after the first 51 cases. All other parameters (blood loss, operative time, and positive surgical margins) significantly decreased and stabilized after 110 cases. Those outcomes were somehow similar to previous published series by high-volume centers.

Evaluation of open and laparoscopic radical cystoprostatectomy combined with orthotopic neobladder: a single-surgeon experience

AIM

To compare the outcomes of laparoscopic (LRCP) and open radical cystoprostatectomy (ORCP) with orthotopic urinary diversion for muscle-invasive organ-confined bladder cancer by a single surgeon.

PATIENTS AND METHODS

Prospectively documented 15 LRCP and 15 ORCP patients, followed for at least 3 years, were included in our study. The demographic parameters of patients, preoperative radiologic staging, previous operations, surgical outcomes, complications, oncologic results and intermediate-term follow-up, postoperative chemotherapy and follow-up periods were recorded and evaluated.

RESULTS

The mean oncologic follow-up was 3 years. Transfusion rate, estimated blood loss, oral intake and narcotic analgesic requirement were statistically less in the LRCP group (p < 0.05). However, operation time and hospital stay were similar in both groups. The complication rates were not significantly different between the two groups. The mean number of dissected lymph nodes was 20.0 ± 1.7 in the ORCP and 22.6 ± 2.0 in the LRCP group. One patient in each group had a margin positive for bladder cancer.

CONCLUSIONS

The laparoscopic approach may be feasible for muscle-invasive organ-confined bladder cancer. Furthermore, LRCP provides less blood loss, early oral intake and postoperative pain management. Additionally, continence and sexual function may be provided by LRCP as with ORCP.

Complications of urologic laparoscopic surgery: a center surgeon's experience involving 601 procedures including the learning curve

When indications for laparoscopy were expanded to include a variety of urologic diseases, this increased the importance of prevention of complications, especially during the surgeons' learning curve period. Therefore, we evaluated the complications of urologic laparoscopic surgery in the course of one surgeon's experience including the learning curve after completing his long-term fellowship program. From December 2004 to August 2010, a total of 601 urologic laparoscopic surgical procedures were performed by a single surgeon who had finished a 9-month fellowship program at an experienced center. The intra- and postoperative complications of these cases were documented and graded according to the modified Clavien classification system, and then compared with the first and second 3-year periods. Of these 601 laparoscopic procedures, 47 complications occurred in 38 patients, resulting in a total complication rate of 7.8%. Conversion to open surgery occurred in four (0.6%) patients. Clavien grades I and II accounted for minor complications and occurred in 36 (5.9%) patients, whereas grades III, IV, and V accounted for major complications, which occurred in 11 (1.8%) patients. The annual complication rates formed a plateau in the 3rd year. Complication rates were significantly lower in the second 3-year period compared with the first 3 years (p<0.05). Despite the well-organized training program and transferability, surgeons must practice caution in the early years until they become more experienced. In spite of the presence of experienced laparoscopic surgeons, the surgical team needs time to gain experience. These factors cause complication rates to form a plateau in terms of time and experience.

Complications and early postoperative outcome in 1080 patients after thulium vapoenucleation of the prostate: results at a single institution

BACKGROUND

Thulium vapoenucleation of the prostate (ThuVEP) has been introduced as a minimally invasive treatment for benign prostatic obstruction (BPO).

OBJECTIVE

To analyze immediate outcomes and the institutional learning curve of ThuVEP, and to report its standardized complication rates, using the modified Clavien classification system (CCS) to grade perioperative complication rates.

DESIGN, SETTINGS, AND PARTICIPANTS

A prospective evaluation of 1080 patients undergoing ThuVEP from January 2007 until May 2012 at our institution.

INTERVENTION

ThuVEP was performed using the 2-μm, continuous-wave, thulium:yttrium-aluminum-garnet laser.

OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS

Preoperative status, surgical details, and immediate outcome were recorded for each patient. Perioperative complications were classified according to the modified CCS.

RESULTS AND LIMITATIONS

Median prostate size was 51 ml (interquartile range [IQR]: 36-78.7). Median operation time was 56 min (IQR: 40-80), and median enucleation time was 32.5 min (IQR: 22-50). Median catheterization time was 2 d (IQR: 2-2); median length of hospital stay was 4 d (IQR: 3-5). Median resected tissue weight was 30 g (IQR: 16.00-51.25). Incidental carcinoma of the prostate was detected in 59 (5.5%) patients. Median maximum urinary flow rate (8.9 vs 18.4 ml/s) and postvoid residual urine volume (120 vs 20 ml) changed significantly (p<0.001). Minor complications occurred in 24.6% of the patients (Clavien 1: 20.8%; Clavien 2: 3.8%). Early reinterventions were necessary in 6.6% of the patients (Clavien 3a: 0.6%; Clavien 3b: 6%). One Clavien 4 complication occurred (0.09%). The overall complication rates decreased significantly over time due to decreasing Clavien 1, 2, and 3b events. The major limitations of the study are the prospective, unicentric study design, the lack of a control group, and that only short-term data were documented on morbidity and efficacy of the ThuVEP procedure.

CONCLUSIONS

ThuVEP is a safe and effective procedure for the treatment of symptomatic BPO, with low perioperative morbidity.

Thulium laser vaporesection versus transurethral electrovaporization of the prostate in high-risk patients with benign prostatic hyperplasia

OBJECTIVE

The purpose of this study was to compare the safety and efficacy of the thulium laser vaporesection and transurethral electrovaporization of the prostate for the treatment of high-risk patients with benign prostatic hyperplasia.

BACKGROUND DATA

From September 2009 to March 2011, 98 consecutive patients with symptomatic bladder outlet obstruction caused by benign prostatic hyperplasia received either thulium laser vaporesection of the prostate (n=42) or transurethral electrovaporization of the prostate (n=56) at our institution.

MATERIALS AND METHODS

Functional follow-up included measurement of International Prostate Symptom Score, quality of life score, maximal urinary flow rate, and post-voiding residual urine volume. All complications were recorded.

RESULTS

Thulium laser vaporesection of the prostate was slightly superior to transurethral electrovaporization of the prostate in catheterization time (2.1±0.9 vs. 4.5±1.3 days, p<0.0001) and postoperative hospital stay (4.4±1.8 vs. 6.6±2.0 days, p<0.0001). Within the observation period, both groups had a significant improvement from baseline in subjective or objective success rates; however, no significant difference was found between the two groups. Peri- and postoperative complications were fewer in the thulium laser group.

CONCLUSIONS

Thulium laser vaporesection of the prostate is as effective as transurethral electrovaporization of the prostate in managing high-risk patients, with sufficient tissue ablation and acceptable hemostasis, and has the advantage of less morbidity and shorter catheter time and postoperative hospital stay.

[Radical prostatectomy - pro laparoscopic]

Recent publications have failed to demonstrate significant differences in perioperative oncological and functional outcomes between laparoscopic radical prostatectomy (LRPE) and R-LRPE. Reports suggesting better functional results, in particular better potency rates for R-LRPE, are rare. However, to date no large prospective, randomized, multicenter studies have compared the two methods. With an experienced operator both methods produce comparably good results. The monopoly of the intuitive system with extremely high cost of purchase and maintenance are the major disadvantages of R-LRPE.

Categorisation of complications and validation of the Clavien score for percutaneous nephrolithotomy

BACKGROUND

Although widely used, the validity and reliability of the Clavien classification of postoperative complications have not been tested in urologic procedures, such as percutaneous nephrolithotomy (PCNL).

OBJECTIVE

To validate the Clavien score and categorise complications of PCNL.

DESIGN, SETTING, AND PARTICIPANTS

Data for 528 patients with complications after PCNL were used to create a set of 70 unique complication-management combinations. Clinical case summaries for each complication-management combination were compiled in a survey distributed to 98 urologists, who rated each combination using the Clavien classification.

OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS

Interrater agreement for Clavien scores was estimated using Fleiss' kappa (κ). The relationship between Clavien score and the duration of postoperative hospital stay was analysed using multivariate nonlinear regression models that adjusted for operating time, preoperative urine microbial culture, presence of staghorn stone, and use of postoperative nephrostomy tube.

RESULTS AND LIMITATIONS

Overall interrater agreement in grading postoperative complications was moderate (κ=0.457; p<0.001). Agreement was highest for Clavien score 5 and decreased with lower Clavien scores. Higher agreement was found for Clavien scores 3 and 4 than in subcategories of these scores. Postoperative stay increased with higher Clavien scores and was unaffected by inherent differences between study centres. A standard list of post-PCNL complications and their corresponding Clavien scores was created.

CONCLUSIONS

Although the Clavien classification demonstrates high validity, interrater reliability is low for minor complications. To improve the reliability and consistency of reporting adverse outcomes of PCNL, we have assigned Clavien scores to complications of PCNL.

Comments on the extraperitoneal approach for standard laparoscopic radical prostatectomy: what is gained and what is lost

Laparoscopic extraperitoneal radical prostatectomy (LERP) is considered the standard care treatment option for the management of localized and locally advanced prostatic cancer (PCa) in many institutes worldwide. In this work, the main advantages and disadvantages of LERP approach are reviewed with regard to its outcomes, the complication management, the learning curve, and the extend of pelvic lymph node dissection (PLND). It is concluded that LERP demonstrates comparable cancer control, urinary continence, and potency outcomes with the open and the robot-assisted radical prostatectomy, while offering advantages in complication management in comparison to the transperitoneal approach. Learning curve of LERP is considered long and stiff and significantly affects perioperative outcomes and morbidity, cancer control, and functional results. Thus, close mentoring especially in the beginning of the learning curve is advised. Finally, LERP still has a role in the limited or modified PLND offered in intermediate risk PCa patients.

The application of natural orifice surgery for adenocarcinoma of the prostate

Prostate cancer remains the most common solid organ malignancy in men. Unfortunately, surgical management of this disease is often associated with significant morbidity. In an effort to decrease the invasiveness and deleterious impact on quality of life associated with prostate cancer surgery, minimally invasive techniques have been applied to this disease. At present, the robotic-assisted laparoscopic radical prostatectomy has become the most commonly performed surgical treatment modality for adenocarcinoma of the prostate. Recently, several centers within the United States have begun to evaluate the feasibility of applying natural orifice translumenal endoscopic surgery to prostate cancer. This review article details the initial work done on cadaveric and canine models to develop the transurethral radical prostatectomy procedure. Potential advantages and disadvantages of this modality, as well as challenges facing its continued development, are highlighted.

Safety profile of robot-assisted radical prostatectomy: a standardized report of complications in 3317 patients

BACKGROUND

Previous studies attempting to assess complications after robot-assisted radical prostatectomy (RARP) are limited by their small numbers, short follow-up, or lack of risk factor analysis.

OBJECTIVE

To document complications after RARP by strict application of standardized reporting criteria.

DESIGN, SETTING, AND PARTICIPANTS

Between January 2005 and December 2009, 3317 consecutive patients underwent RARP at a tertiary referral center. Median follow-up was 24.2 mo (interquartile range: 12.4-36.9).

INTERVENTION

Transperitoneal RARP was performed by one of five surgeons-two experienced, three beginners.

MEASUREMENTS

Complications were captured by exhaustive review of multiple datasets, including our prospective prostate cancer database, claims data, and electronic medical and institutional morbidity and mortality records, and reported according to the Martin-Donat criteria. Complications were stratified by type (medical/surgical), Clavien classification, and timing of onset. Multivariable analysis of factors predictive of complications was performed.

RESULTS AND LIMITATIONS

The median hospitalization time was 1 d. There were 368 complications in 326 patients (9.8%), including a transfusion rate of 2.2%. We detected 79 medical complications in 78 patients (2.4%) and 289 surgical complications in 264 patients (8.0%). There were 242 minor (Clavien 1-2) and 126 major (Clavien 3-5) complications. Two hundred ninety-nine (81.3%) complications occurred within 30 d, 17 (4.6%) within 31-90 d, and 52 (14.1%) after 90 d from surgery. On multivariable analysis, preoperative prostate-specific antigen values and cardiac comorbidity were predictive for medical complications, whereas age, gastroesophageal reflux disease, and biopsy Gleason score were predictive of surgical complications. Limitations of this study include representing results from a single high-volume referral center and not including the learning curve of the two most experienced surgeons.

CONCLUSIONS

RARP is a safe operation, with an overall complication rate of 9.8%. Most complications occurred within 30 d of surgery.