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Dive into the research topics where Marc Furrer is active.

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Featured researches published by Marc Furrer.


The Journal of Urology | 2016

Patients with an Orthotopic Low Pressure Bladder Substitute Enjoy Long-Term Good Function

Marc Furrer; Beat Roth; Bernhard Kiss; Daniel Truong Phat Nguyen; Silvan Boxler; Fiona C. Burkhard; George N. Thalmann; Urs E. Studer

PURPOSE Orthotopic bladder substitution has been performed on a regular basis for more than 30 years and yet data on long-term functional outcomes are still lacking. MATERIALS AND METHODS We evaluated 181 men and 19 women who underwent radical cystectomy and urinary diversion with ileal orthotopic bladder substitution from 1985 to 2004 and who had 10 years or more of followup. RESULTS Median age at radical cystectomy was 63 years (IQR 57-69). Median followup was 167 months (IQR 137-206). Daytime and nighttime continence rates peaked 24 months postoperatively and decreased slightly thereafter during almost 2 decades. At 10, 15 and 20 years daytime continence rates were 92%, 90% and 79%, and nighttime continence rates were 70%, 65% and 55%, respectively. During the day and at night fewer than 3% and 10% of patients, respectively, had urine loss 100 ml or greater at any time 10 years or longer after surgery. At 10 and 20 years 11 of 200 patients (6%) and 1 of 29 (3%), respectively, had to perform clean intermittent self-catheterization. After an initial postoperative decrease in the estimated glomerular filtration rate the subsequent decrease was less than 1 ml/minute/1.73 m(2) per year. A total of 81 complications were observed in 42 of the 200 patients (21%) 10 years or longer after radical cystectomy with pyelonephritis as the most frequent cause. CONCLUSIONS Patients who survive up to 20 years after radical cystectomy and diversion with an ileal orthotopic bladder substitution may enjoy satisfactory urinary continence and retain the ability to void spontaneously while experiencing no more than a physiological decrease in renal function.


The Journal of Urology | 2017

Stenting Prior to Cystectomy is an Independent Risk Factor for Upper Urinary Tract Recurrence.

Bernhard Kiss; Marc Furrer; Patrick Y. Wuethrich; Fiona C. Burkhard; George N. Thalmann; Beat Roth

Purpose: Patients with bladder cancer who present with hydronephrosis may require drainage of the affected kidney before receiving further cancer treatment. Drainage can be done by retrograde stenting or percutaneously. However, retrograde stenting carries the risk of tumor cell spillage to the upper urinary tract. The aim of this study was to evaluate whether patients with bladder cancer are at higher risk for upper urinary tract recurrence if retrograde stenting has been performed prior to radical cystectomy. Materials and Methods: We retrospectively analyzed the records of 1,005 consecutive patients with bladder cancer who underwent radical cystectomy at our department between January 2000 and June 2016. Negative intraoperative ureteral margins were mandatory for study inclusion. Patients received regular followup according to our institutional protocol, including imaging of the upper urinary tract and urine cytology. Results: Preoperative drainage of the upper urinary tract was performed in 114 of the 1,005 patients (11%), including in 53 (46%) by Double‐J® stenting and in 61 (54%) by percutaneous nephrostomy. Recurrence developed in the upper urinary tract in 31 patients (3%) at a median of 17 months after cystectomy, including 7 of 53 (13%) in the Double‐J group, 0% in the nephrostomy group and 24 of 891 (3%) in the no drainage group. Multivariate regression analysis revealed a higher risk of upper urinary tract recurrence if patients underwent Double‐J stenting (HR 4.54, 95% CI 1.43–14.38, p = 0.01) and preoperative intravesical instillations (HR 2.94, 95% CI 1.40–6.16, p = 0.004). Conclusions: Patients who undergo Double‐J stenting prior to radical cystectomy are at higher risk for upper urinary tract recurrence. If preoperative upper urinary tract drainage is required, percutaneous drainage might be recommended.


Investigative and Clinical Urology | 2016

Urethral strictures after radiation therapy for prostate cancer

Felix Moltzahn; Alan Dal Pra; Marc Furrer; George N. Thalmann; M. Spahn

Urethral stricture after radiation therapy for localized prostate cancer is a delicate problem as the decreased availability of tissue healing and the close relation to the sphincter complicates any surgical approach. We here review the pathophysiology, dosimetry, and the disease specific aspects of urethral strictures after radiotherapy. Moreover we discuss different treatment option such as direct vision internal urethrotomy as well as techniques for open reconstruction with and without tissue transfer.


The Prostate | 2018

Repeat prostate biopsies prior to radical prostatectomy do not impact erectile function recovery and mid- to long-term continence

Marc Furrer; Antoni Vilaseca; Renato B. Corradi; Silvan Boxler; George N. Thalmann; Daniel P. Nguyen

A growing number of men undergo repeat biopsies prior to radical prostatectomy for prostate cancer. However, the long‐term impact of repeat biopsies on functional outcomes in this patient population remains unelucidated. Thus, we compared functional outcomes between patients who underwent single biopsy versus repeat biopsies before radical prostatectomy.


BJUI | 2018

More extended lymph node dissection template at radical prostatectomy detects metastases in the common iliac region and in the fossa of Marcille

Lydia Maderthaner; Marc Furrer; Urs E. Studer; Fiona C. Burkhard; George N. Thalmann; Daniel P. Nguyen

To assess the effect of adding lymph nodes (LNs) located along the common iliac vessels and in the fossa of Marcille to the extended pelvic LN dissection (PLND) template at radical prostatectomy (RP).


Urologic Oncology-seminars and Original Investigations | 2017

Renal outcome after radical cystectomy and urinary diversion performed with restrictive hydration and vasopressor administration in the frame of an enhanced recovery program: A follow-up study of a randomized clinical trial ☆

Fiona Mei Wen Wu; Fiona C. Burkhard; Filippo Turri; Marc Furrer; Lukas Loeffel; George N. Thalmann; Patrick Y. Wuethrich

OBJECTIVE To determine whether a restrictive perioperative fluid management in the context of an enhanced recovery after surgery program for radical cystectomy and urinary diversion affects renal function, as fluid restriction and the use of vasopressors have been linked to impaired tissue perfusion, potentially resulting in renal dysfunction. METHODS We followed 166 patients initially included in a randomized clinical trial and equally allocated to receive a continuous norepinephrine administration combined with 1ml/kg/h initially, and after cystectomy 3ml/kg/h crystalloid infusion (intervention group, n = 83), or a standard crystalloid infusion of 6ml/kg/h throughout surgery (control group, n = 83). All patients followed our institutional enhanced recovery after surgery program. We prospectively assessed renal function (plasma creatinine values and estimated glomerular filtration rate Chronic Kidney Disease Epidemiology Collaboration equation) postoperatively. Decreased renal function was defined as a decrease in glomerular filtration rate is greater than 20% compared to preoperative values. RESULTS There was no significant difference in renal function between the groups postoperatively at any time point after discharge: diabetes mellitus (HR = 2.81 [95% CI: 1.48-5.36]; P = 0.002), preoperative estimated glomerular filtration rate (HR = 1.02 [95% CI: 1.00-1.03]; P = 0.007), and age (OR = 1.03 [95% CI: 11.00-1.06]; P = 0.038) were negative predictors for renal deterioration. CONCLUSION Postoperative renal function evolution was similar in patients receiving restrictive hydration with norepinephrine administration when compared to liberal hydration intraoperatively, suggesting that there is no influence of fluid management and administration of vasopressors on mid-term renal function.


Urologic Oncology-seminars and Original Investigations | 2018

Incidence and perioperative risk factors for early acute kidney injury after radical cystectomy and urinary diversion.

Marc Furrer; Marc P. Schneider; Fiona C. Burkhard; Patrick Y. Wuethrich

BACKGROUND Early postoperative acute kidney injury (AKI) is associated with increased morbidity and mortality following major surgery. Only few reports exist on postoperative AKI and specifically its risk factors after radical cystectomy (RC) and urinary diversion (UD). We aimed to identify risk factors for AKI in patients undergoing RC and UD. METHODS In an observational single-center cohort study, 912 consecutive bladder cancer patients undergoing RC and UD from 2000 to 2016 were evaluated for risk factors for AKI. Multiple logistic regression analysis was performed to model the association between variables and AKI. RESULTS Early postoperative AKI occurred in 100/912 patients (11%). An increased risk was seen in patients with surgery lasting>400minutes, male and obese patients (>25kg/m²). Independent predictors were duration of surgery (P = 0.020), intraoperative blood loss (P = 0.049), preoperative serum creatinine values (P = 0.004), intraoperative administration of crystalloids (P = 0.032), body mass index (P = 0.031), and fluid balance (P = 0.006). Patients with AKI had a longer hospitalization time (18d vs 17d, P = 0.040). Limitations include the potential bias due to the design as a case series with prospectively collected data with some missing values. CONCLUSIONS An increased risk for AKI was seen in patients with an operative time>400 minutes. Hence, in this group of patients the role of postoperative fluid management for preserving renal function should be considered. Further independent predictors of postoperative AKI were male sex, obesity, intraoperative blood loss, and a low preoperative plasma creatinine. So specially in male and obese patients, optimized perioperative nephroprotective strategies are of importance.


Archive | 2018

Reproductive organ sparing cystectomy in women significantly improves continence after orthotopic bladder substitution without affecting oncological outcome

Tobias Gross; Marc Furrer; Petra Schorno; Patrick Yves Wüthrich; Marc P. Schneider; George N. Thalmann; Fiona C. Burkhard

To compare functional and oncological outcomes of reproductive organ‐sparing cystectomy (ROSC) compared with standard cystectomy (SC) in women undergoing orthotopic bladder substitution (OBS).


European Journal of Anaesthesiology | 2018

Impact of intra-operative fluid and noradrenaline administration on early postoperative renal function after cystectomy and urinary diversion: A retrospective observational cohort study.

Marc Furrer; Marc P. Schneider; Lukas M. Löffel; Fiona C. Burkhard; Patrick Y. Wuethrich

BACKGROUND The use of noradrenaline to enable a restrictive approach to intra-operative fluid therapy to avoid salt and water overload has gained increasing acceptance. However, concerns have been raised about the impact of this approach on renal function. OBJECTIVES To identify risk factors for acute kidney injury (AKI) in patients undergoing cystectomy with urinary diversion and determine whether administration of noradrenaline and intra-operative hydration regimens affect early postoperative renal function. DESIGN Retrospective observational cohort study. SETTING University hospital, from 2007 to 2016. PATIENTS A total of 769 consecutive patients scheduled for cystectomy and urinary diversion. Those with incomplete data and having pre-operative haemodialysis were excluded. MAIN OUTCOME MEASURES AKI was defined as a serum creatinine increase of more than 50% over 72 postoperative hours. Multiple logistic regression analysis was performed to model the association between risk factors and AKI. RESULTS Postoperative AKI was diagnosed in 86/769 patients (11.1%). Independent predictors for AKI were the amount of crystalloid administered (odds ratio (OR) 0.79 [95% confidence interval (CI), 0.68 to 0.91], P = 0.002), antihypertensive medication (OR 2.07 [95% CI, 1.25 to 3.43], P = 0.005), pre-operative haemoglobin value (OR 1.02 [95% CI, 1.01 to 1.03], P = 0.010), duration of surgery (OR 1.01 [95% CI, 1.00 to 1.01], P = 0.002), age (OR 1.32 [95% CI, 1.44 to 1.79], P = 0.002) but not the administration of noradrenaline (OR 1.09 [95% CI, 0.94 to 1.21], P = 0.097). Postoperative AKI was associated with longer hospital stay (18 [15 to 22] vs. 16 [15 to 19] days; P = 0.035) and a higher 90-day major postoperative complication rate (41.9 vs. 27.5%; P = 0.002). CONCLUSION Noradrenaline administration did not increase the risk for AKI. A too restrictive approach to administration of crystalloids was associated with an increased risk for AKI, particularly in older patients, those receiving antihypertensive medication, and those whose surgery was prolonged. As AKI was associated with longer hospital stay and increased postoperative morbidity, these observations should be taken into account to improve outcome when addressing peri-operative fluid management. TRIAL REGISTRATION Not applicable.


BJUI | 2018

Reproductive organ-sparing cystectomy significantly improves continence in women after orthotopic bladder substitution without affecting oncological outcome

Tobias Gross; Marc Furrer; Petra Schorno; Patrick Y. Wuethrich; Marc P. Schneider; George N. Thalmann; Fiona C. Burkhard

To compare functional and oncological outcomes of reproductive organ‐sparing cystectomy (ROSC) compared with standard cystectomy (SC) in women undergoing orthotopic bladder substitution (OBS).

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