Publications by authors named "Daniel M Schmid"

Purpose: The fast-increasing use of positron emission tomography (PET) with prostate-specific membrane antigen (PSMA) ligand for the imaging of prostate cancer (PCA) biochemical recurrence has led to a rapid change in treatment concepts. Since the superiority of Ga-PSMA-11 PET in detecting recurrent PCA is well established, the aim of our study was to assess its effect on management and outcome in all patients imaged during the first year after its introduction into clinical routine.

Methods: Of 327 patients imaged, 223 were referred for recurrent PCA and gave written informed consent for further analysis of their data for this retrospective consecutive cohort analysis.

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The University Hospital of Zurich offers a text-based, Medical Online Consultation Service to the public since 1999. Users asked health questions anonymously to tele-doctors. This study focused on the characteristics of male enquirers with intimate health problems, the content of their questions, the medical advice given by tele-doctors and the rating of the service to prove the benefit of an online service for medical laymen.

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Background: Robotic-assisted laparoscopic prostatectomy (RALP) gained much popularity during the last decade. Although the influence of intraoperative fluid management on patients' outcome has been largely discussed in general, its impact on perioperative complications and length of hospitalization in patients undergoing RALP has not been examined so far. We hypothesized that a more restrictive fluid management might lead to a shortened length of hospitalization and a decreased rate of complications in our patients.

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Background: Withdrawal of oral antiplatelet therapy (OAT) is a major risk factor for stent thrombosis, myocardial infarction, and cerebral strokes. In order to minimize the risk for thrombotic complications, since 2007 robotic-assisted laparoscopic radical prostatectomy (RARP) has taken place under continuous OAT with aspirin at our institution. In this retrospective study we analyzed the risk for perioperative bleeding and surgical outcome after RARP with OAT.

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Background: Medication overuse headache (MOH) has been recognized as an important problem in headache patients although the pathophysiological mechanisms remain unclear. The diagnosis of MOH is based on clinical characteristics defined by the International Headache Society. The aim was the evaluation of the diagnostic criteria of MOH in a mixed population of chronic pain patients to gain information about the prevalence and possible associations with MOH.

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Introduction: Improved visualization and magnification in robot-assisted laparoscopic radical prostatectomy (RALRP) has tempted many urologists to dissect the neurovascular bundle closer to the prostate following the layers of the pseudo-capsule of the prostate. This might bear a higher risk of decreased tumor control.

Materials And Methods: An analysis of a consecutive series of 186 patients who underwent RALRP at our institution was performed.

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Renal proximal tubular epithelial cells, a target of infiltrating T cells during renal allograft rejection, may be protected from this injury by the cell surface protein CD274 (also termed PD-L1 for programmed death ligand 1). The co-inhibitory molecules PD-L1 (CD274) and PD-L2 (CD273) are ligands of PD-1 (programmed death 1; CD279). Here we determine the functional role of PD-1/PD-L pathways in human renal allograft rejection.

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Objective: In 1999 we lowered the prostate-specific antigen (PSA) threshold for prostate biopsy at our institution from 4 to 2.5 ng/ml. The aim of this study was to compare the differences in tumor characteristics of the detected prostate cancers (PCAs) and the detection rate for the two different PSA thresholds and to evaluate if lowering the threshold was justified by any of the detected differences.

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Background: To date, there is still a paucity of data in the literature on robotic-assisted laparoscopic extended pelvic lymph node dissection (RALEPLND) in patients with prostate cancer.

Objective: To assess the technical feasibility of RALEPLND and to present our surgical technique.

Design, Setting, And Participants: From April 2006 to March 2008, we performed RALEPLND in 99 patients prior to robotic-assisted laparoscopic radical prostatectomy.

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Introduction: Well informed and educated patients ideally manage to prevent or delay the onset of severe chronic diseases. With respect to erectile dysfunction (ED) this is of importance because ED is considered to herald debilitating cardiovascular diseases like coronary artery disease.

Aim: This survey aimed to assess patient's knowledge about risk factors (RF) for ED and to identify their preferred source of information.

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The purpose of our study was to demonstrate that distinct cytogenetic alterations in the most common subtype of renal cell cancer, clear cell renal cell carcinoma (ccRCC), are reflected in protein expression profiles. We performed conventional cytogenetics and immunohistochemical analysis for cytokeratins (CKs) on 126 ccRCCs. Protein expression was evaluated in situ using a semiautomated quantitative system.

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The aim of this trial was to examine the effects after 2 years of a single intravesical botulinum toxin-A injection (BTX-A). This prospective, observational study was conducted using urodynamic measurements and quality of life (QoL) assessment to document the effect after 2 years of a single 100 I.U.

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Objective: To assess the efficacy and safety of sacral neuromodulation (SNM) in patients with refractory lower urinary tract dysfunction in Switzerland based on a nationwide registry.

Patients And Methods: A total of 209 patients (181 females, 28 males) underwent SNM testing between July 2000 and December 2005 in Switzerland. Subjective symptom improvement, bladder/pain diary variables, adverse events, and their management were prospectively registered.

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Objective: This study was undertaken to investigate the efficacy and safety of botulinum-A toxin (BTX-A) treatment for non-neurogenic detrusor overactivity incontinence.

Study Design: This prospective nonrandomized ongoing study was performed in a tertiary referral urogynecology department. In 26 women with urge incontinence and urodynamically demonstrated detrusor overactivity incontinence resistant to conventional treatment 100 units of BTX-A were injected into the detrusor muscle at 30 sites.

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Objectives: To prospectively evaluate sacral magnetic high-frequency stimulation as a treatment option for patients with non-inflammatory chronic pelvic pain syndrome (CPPS, category IIIB).

Patients And Methods: Fourteen men with CPPS IIIB were treated with high-frequency sacral magnetic stimulation, with 10 treatment sessions once a week for 30 min at a frequency of 50 Hz. The National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI) and quality-of-life index were determined before and after treatment.

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Objectives: To assess the correlations in males with spinal cord injury (SCI) between the neurologic status and type of detrusor-sphincter dyssynergia (DSD) observed during urodynamic examinations and to evaluate the change in the DSD pattern over time.

Methods: A total of 105 male patients with chronic SCI were neurologically examined according to the American Spinal Cord Injury Association protocol and underwent video-urodynamic examinations. DSD observed during urodynamic studies was classified according to the Blaivas classification.

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Aims: The aim of this study is to assess neurogenic lesions of the somatomotor efferent nervous pathway to the urethral compressive musculature (UCM) by means of motor evoked potentials (MEP) and simultaneously recorded evoked pressure curves (EPC).

Methods: Nine healthy subjects and 33 patients (15 spinal cord injury, 14 cauda equina lesion, and 4 multiple sclerosis (MS)) with neurogenic urinary incontinence were prospectively examined by means of urodynamics and electrophysiology. MEP responses from the UCM were evoked after transcranial (tc) and lumbosacral (ls) single pulse magnetic stimulation.

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Purpose: In most spinal cord injured (SCI) patients the objective assessment of afferent neuronal pathways from the lower urinary tract and the recording of a disturbed urethral sensation and/or desire to void are still difficult. Viscerosensory evoked potentials (VSEPs) might be helpful, but they remain technically difficult to obtain and interpretation is delicate. As a new approach, sympathetic skin response (SSR) of the hand and foot were recorded after electrical stimulation of the posterior urethral mucosa.

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Purpose: We prospectively observed a possible benefit from urethro-anal high frequency electrostimulation in patients with noninflammatory chronic pelvic pain syndrome (Cat IIIB CPPS) as a new treatment option.

Materials And Methods: A total of 88 patients with a referral diagnosis of chronic prostatitis underwent fractionated urinary cultures, including expressed prostate secretion and ejaculate analysis twice. Of this group 14 men with Cat IIIB CPPS elected electrostimulation.

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Aims: Pudendal nerve stimulation is known to have a potential modulative effect on bladder function. However, even if its efficiency has been established for various neurogenic and non-neurogenic bladder dysfunctions, the underlying neuronal mechanism, and the involved pathways in humans remain unknown. In this prospective study we focused on the effects of pudendal nerve stimulation in complete spinal cord injured patients to identify neuromodulative processes that occur on spinal level.

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Objective: To determine whether early sensory examination, voluntary anal sphincter contraction, or bulbocavernosus reflex (BCR) might predict bladder function in patients with a spinal fracture at the thoracolumbar level.

Design: Longitudinal study of consecutive patients admitted to a spinal cord injury (SCI) rehabilitation center.

Setting: Primary care center, university facility in Switzerland.

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Spinal cord injury (SCI) causes serious disturbances in autonomic innervation and malfunction of the sympathetic nervous system that controls the pelvic organs, blood pressure, skin temperature and sweating. We studied sympathetic sudomotor pathways in 6 healthy subjects and 14 patients with sensory and motor complete SCI on cervical, thoracic and lumbar level. Sympathetic skin responses (SSRs) were provoked by auditory bursts and electrical stimulation of median, pudendal and tibial nerve and recorded from the palmar and plantar skin.

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