Publications by authors named "Studer U"

Unlabelled: This multicentre, prospective cohort study measured the effect of romosozumab for 12 months on bone mineral density, taking into account prior therapies. Prior antiresorptive therapy blunted the BMD response to romosozumab, and the duration was correlated with BMD changes at both the lumbar spine and total hip.

Introduction: In Switzerland, romosozumab is administered to high-risk osteoporosis patients.

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Article Synopsis
  • A registry-based study of 3068 osteoporosis patients found that denosumab significantly reduced the risk of vertebral and any fractures more effectively than alendronate and ibandronate, with no notable difference when compared to zoledronate.* -
  • The study analyzed fracture risks using various statistical methods, and it included data on medication usage and patient characteristics, revealing that patients on denosumab had a lower fracture risk after adjusting for age and bone density scores.* -
  • In total, the analysis covered over 11,000 subject-years on bisphosphonates and more than 4,200 years on denosumab, with reported significant reductions in vertebral, non-vertebral, and hip
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Atypical femoral fractures (AFFs) have been reported in patients taking bisphosphonates (BPs) for osteoporosis therapy but also in patients with no exposure to these drugs. In contrast, less is known about the incidence of AFFs in patients taking denosumab. This registry-based cohort study analyzed the incidence of AFFs in patients with suspected or confirmed osteoporosis who were included in the osteoporosis register of the Swiss Society of Rheumatology between January 2015 and September 2019.

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Background: The rebound effect after denosumab discontinuation is lessened with subsequent zoledronate therapy. However, it is unclear whether this mitigation is sufficient after long-term denosumab treatment.

Objective: This retrospective observational study analysed bone mineral density (BMD) and bone turnover marker (BTM) changes after denosumab therapy according to treatment duration and subsequent zoledronate regimen.

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Osteonecrosis of the jaw (ONJ) is a rare but serious adverse event associated with antiresorptive treatment. There is little evidence regarding the incidence of ONJ among patients with osteoporosis who are treated with denosumab versus bisphosphonates (BPs). The aim of this study was to determine the risk of ONJ in a real-world population.

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Purpose: Seminal vesicle-sparing radical cystectomy has been reported to improve short-term functional results without compromising oncological outcomes. However, there is still a lack of data on long-term outcomes after seminal vesicle-sparing radical cystectomy. The aim of this study was to compare oncological and functional outcomes in patients after seminal vesicle-sparing vs nonseminal vesicle-sparing radical cystectomy.

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Background: Denosumab discontinuation without subsequent bisphosphonates (BPs) is associated with bone loss and multiple vertebral fractures.

Objective: Identifying risk factors for bone loss and vertebral fractures after denosumab discontinuation.

Methods: This retrospective study measured the outcome of 219 women with osteoporosis who discontinued denosumab treatment and received subsequent treatment with zoledronate, other BPs or a selective estrogen receptor modulator (SERM), or no therapy.

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Background/aim: Cytomegalovirus (CMV) replication may cause life-threatening complications after allogeneic haematopoietic stem cell transplantation (allo-HSCT). The aim of the study was to characterize CMV events, and the outcome of letermovir (LTV) CMV prophylaxis.

Patients And Methods: In this retrospective analysis of patients treated with an allo-HSCT between 2010 and 2020, we determined plasma CMV events, as well as associated risk factors.

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Background: The crossfolded ileal reservoir combined with an afferent tubular isoperistaltic segment for heterotopic continent urinary diversion has been performed on a regular basis for over 20 years. Yet data on long-term-outcomes remain sparse.

Objective: To report long-term functional and oncological outcomes, gastrointestinal and metabolic disturbances, urinary tract infections (UTIs), and quality of life.

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Background: In patients who do not qualify for an orthotopic urinary diversion, for example, the urethra cannot be spared or is functionally impaired, a heterotopic continent cutaneous cross-folded ileal reservoir offers a good alternative.

Objective: To describe the indication, surgical technique, and postoperative management, and to report the reservoir-related outcomes and complications associated with the serosa-lined tunnel.

Design, Setting, And Participants: Perioperative outcomes of 118 consecutive patients after cystectomy and a heterotopic ileal reservoir adapted from the Studer bladder substitute technique, operated between 2000 and 2018, were evaluated.

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Discontinuation of denosumab is associated with a rapid return of bone mineral density (BMD) to baseline and an increased risk of multiple vertebral fractures. No subsequent treatment regimen has yet been established for preventing either loss of BMD or multiple vertebral fractures after denosumab discontinuation. The aim of this 8-year observational study was to investigate the effect of a single zoledronate infusion, administered 6 months after the last denosumab injection, on fracture occurrence and loss of BMD.

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Objective: To analyse urinary continence in long-term survivors after radical cystectomy (RC) and orthotopic bladder substitution (OBS) according to attempted nerve-sparing (NS) status.

Patients And Methods: We analysed 180 consecutive patients treated at our department between 1985 and 2007, who underwent RC with OBS, and survived ≥10 years after RC. We stratified patients by attempted NS status and evaluated continence outcomes using descriptive statistics and Cox proportional hazards regression models.

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Objectives: 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).

Patients And Methods: A total of 485 patients underwent RP and PLND at a referral centre between 2000 and 2008 (historical cohort: classic extended PLND template) and a total of 268 patients between 2010 and 2015 (contemporary cohort: extended PLND template including LNs located along the common iliac vessels and in the fossa of Marcille). Descriptive analyses were used to compare baseline, pathological, complication and functional data between the two cohorts.

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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).

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The bladder and the prostate have a multitude of primary lymphatic landing sites, making the sentinel node concept inapplicable in patients with bladder or prostate cancer. However, some imaging techniques may be helpful in guiding surgeons for the removal of suspicious nodes that would not have been resected in a standardized template. Despite the multitude of new imaging techniques available today, a meticulous histologic workup of lymph nodes retrieved by an extended pelvic lymph node dissection still has the highest accuracy for detection of lymph node metastases in bladder or prostate cancer.

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Background: Urinary incontinence or the inability to void spontaneously after ileal orthotopic bladder substitution is a frequent finding in female patients.

Objective: To evaluate how hysterectomy and nerve sparing affect functional outcomes and whether these relate to pre- and postoperative urethral pressure profile (UPP) results.

Design, Setting, And Participants: Prospectively performed pre- and postoperative UPPs of 73 female patients who had undergone cystectomy and bladder substitution were correlated with postoperative voiding and continence status.

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Purpose: Blood loss and blood substitution are associated with higher morbidity after major abdominal surgery. During major liver resection low local venous pressure decreases blood loss. Ambiguity persists concerning the impact of local venous pressure on blood loss during open radical cystectomy.

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Acute urinary retention is a common emergency condition in elderly men. Transurethral and suprapubic catheterization are easy and safe procedures provided that a few simple rules are followed. Primarily, a transurethral catheter is placed if there is no urethral injury or stricture.

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Objective: To determine the rates of the available urinary diversion options for patients treated with radical cystectomy for bladder cancer in different settings (pioneering institutions, leading urologic oncology centers, and population based).

Methods: Population-based data from the literature included all patients (n = 7608) treated in Sweden during the period 1964-2008, from Germany (n = 14,200) for the years 2008 and 2011, US patients (identified from National Inpatient Sample during 1998-2005, 35,370 patients and 2001-2008, 55,187 patients), and from Medicare (n = 22,600) for the years 1992, 1995, 1998, and 2001. After the International Consultation on Urologic Diseases-European Association of Urology International Consultation on Bladder Cancer 2012, the urinary diversion committee members disclosed data from their home institutions (n = 15,867), including the pioneering institutions and the leading urologic oncology centers.

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