Publications by authors named "Michael Klingler"

Introduction: Early urinary catheter removal has been incorporated into Enhanced Recovery After Surgery (ERAS) pathways to aid faster recovery and minimize urinary tract infection. However, early catheter removal can result in urinary retention, which may lead to catheter reinsertion and a prolonged hospital stay. Tamsulosin, an alpha-blocking medication, effectively treats urinary retention in both men and women.

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Background: Endoscopic submucosal dissection for advanced colon lesions is typically performed with specialized and costly endoscopic knives, potentially limiting accessibility and increasing procedural cost. Alternatively, the tip of an endoscopic snare, which is inexpensive and universally available, has demonstrated safe and efficient use in gastric lesions but lacks sufficient data for use in colon lesions.

Objective: This study aimed to assess patient outcomes after endoscopic submucosal dissection of advanced colon lesions using the endoscopic snare tip.

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Introduction: Type 2 diabetes (T2D) is a chronic medical condition that results in significant health implications and reduced life expectancy. The International Diabetes Federation (IDF) estimated that in 2021, 51.8% of all deaths of people under 60 years old in the Middle East and North Africa (MENA) region were related to diabetes.

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Background: Suboptimal weight loss (SWL) occurs up to 30% after sleeve gastrectomy (SG). Conversion to Roux-en-Y gastric bypass (cRYGB) has shown heterogeneous results in terms of additional weight loss and resolution of weight-related comorbidities. We aim to evaluate mid-term outcomes of cRYGB specifically for SWL after SG.

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Biofuels are currently the only available bulk renewable fuel. They have, however, limited expansion potential due to high land requirements and associated risks for biodiversity, food security, and land conflicts. We therefore propose to increase output from ethanol refineries in a land-neutral methanol pathway: surplus CO-streams from fermentation are combined with H from renewably powered electrolysis to synthesize methanol.

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Introduction: Per-oral pyloromyotomy (POP or G-POEM) provides significant short-term improvements in symptoms and objective emptying for patients with medically refractory gastroparesis, but it is unclear if patients with gastroparesis and co-existing dysmotility (small bowel or colonic delay) also benefit. In this study, we used wireless motility capsule (WMC) data to measure outcomes in patients with isolated gastroparesis (GP) and gastroparesis with co-existing dysmotility (GP + Dys) who underwent POP.

Methods: We retrospectively analyzed patients who had POP and completed WMC data during their evaluation of intestinal dysmotility.

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Background: Little is known about decline in lung function in Parkinson's disease (PD). To assess these changes, we assessed the changes in lung function that occurred over 12 months in patients on standard PD therapy as part of the observational cohort of an open-label study of inhaled levodopa (CVT-301) in PD.

Methods: PD patients on stable oral PD therapy and no chronic respiratory disease had spirometry and diffusing capacity of the lungs for carbon monoxide (DL) measured at 3, 6, 9, and 12 months.

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Intragastric balloon therapy is an endoluminal treatment of obesity that is indicated for patients with moderate obesity (body mass index, 30-35 kg/m) who have failed to lose weight with lifestyle and medical management. Treatment duration ranges from 4 to 12 months, and percent total body weight loss ranges from 6% to 15% at the time of balloon removal. Adverse events, such as bowel obstruction or gastric perforation, are rare, and early balloon removal because of intolerance is the most common complication.

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Background: Endoscopic per-oral pyloromyotomy (POP) has emerged as a safe and effective first line option in medically refractory gastroparesis. Determining the appropriate extent of the pyloromyotomy continues to present a challenge as there are no standardized tools for measuring changes in pyloric distensibility during the procedure. The objective of this study was to evaluate the utility of using impedance planimetry with endoscopic functional luminal imaging probe (FLIP) to measure changes in pyloric distensibility after POP, and to compare these changes with improvement in symptoms and objective gastric emptying.

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Objective: The COVID-19 pandemic created a paradigm shift in medical education with a reliance upon alternative teaching methods to deliver meaningful surgery clerkship content. This study examines the efficacy of a novel, case-based virtual surgery clerkship curriculum to determine its impact on student experience during quarantine.

Study Design: Sixteen third-year medical students enrolled in the General Surgery clerkship between April through June 2020 during COVID-19 distancing at a quaternary medical center (Cleveland Clinic, Cleveland, OH) participated in this study.

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Introduction: CVT-301 (Inbrija®) is a levodopa inhalation powder for on-demand treatment of OFF episodes in Parkinson's disease patients treated with carbidopa/levodopa. Safety and efficacy results of a 12-month, dose-level blinded extension study of a phase 3 trial (SPAN℠-PD) of CVT-301 are presented.

Methods: Patients were receiving oral carbidopa/levodopa and adjunctive CVT-301 treatment, blinded to dose (60 mg or 84 mg, N = 325).

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Background: In peroral endoscopic myotomy for Zenker's diverticulum (Z-POEM), the cricopharyngeus muscle is divided within a submucosal tunnel started in the hypopharynx. We aimed to evaluate the safety and preliminary outcomes in patients who underwent a modified version of the Z-POEM where the tunnel is made directly overlying the cricopharyngeus, the mucosal incision and muscular interruption (MIMI) approach, and to compare these with patients who underwent a non-tunneled flexible endoscopic approach.

Methods: All patients with ZD who were treated by flexible endoscopy at our institution between January 2015 and February 2020 were identified by a retrospective chart review.

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Introduction: Ramadan is characterized by a month of fasting between dawn and sunset. Cleveland Clinic Abu Dhabi is located in the United Arab Emirates, where the majority of our patients observe Ramadan. In many practices, bariatric surgery has been delayed until after Ramadan in order to avoid postoperative complications.

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Background: Many patients considering bariatric surgery will obtain medical information through the Internet. The type and quality of information patients access may vary significantly by geographic region.

Methods: Searches were performed using commercial search engines in both the United States of America (USA) and United Arab Emirates (UAE) using search terms "bariatric surgery" and "weight loss surgery.

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Purpose: Partial nephrectomy (PN) is standard for small renal masses, improving renal function by preserving renal parenchyma compared with radical nephrectomy. Recent work demonstrated that postoperative surgeon assessment of volume preservation (SAVP) and 3D imaging measurements agree and correlate with postoperative function. We hypothesize preoperative assessment of volume preservation (PAVP) with PN based on preoperative imaging will reliably indicate postoperative renal function.

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Background: Dalfampridine extended release (ER) improves walking in people with multiple sclerosis (MS), as demonstrated by walking speed improvement. This exploratory study evaluated treatment effects of dalfampridine-ER on gait, balance, and walking through treatment withdrawal and reinitiation.

Methods: Dalfampridine-ER responders, based on Timed 25-Foot Walk (T25FW) assessment before study entry, were included in this open-label, three-period, single-center study.

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Purpose: Dalfampridine extended-release (ER) tablets 10 mg BID have been approved for use in improving walking in people with multiple sclerosis (MS). This subgroup analysis evaluated the effects of dalfampridine ER 5 and 10 mg BID on distance walked, as assessed using the 6-minute walk (6MW) test.

Methods: This analysis of data from a randomized, placebo-controlled, double-blind study (N = 430) included only the 153 patients with 6MW data available.

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Background: Dalfampridine extended-release (ER) tablets, 10 mg twice daily, have been shown to improve walking in people with multiple sclerosis. We evaluated the safety and efficacy of dalfampridine-ER 5 mg compared with 10 mg.

Methods: Patients were randomized to double-blind treatment with twice-daily dalfampridine-ER tablets, 5 mg (n = 144) or 10 mg (n = 143), or placebo (n = 143) for 4 weeks.

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Background: Two phase 3 clinical trials demonstrated that dalfampridine extended-release 10-mg tablets (D-ER), twice daily, significantly improved walking relative to placebo in patients with multiple sclerosis (MS). The objective of this study was to evaluate the efficacy and safety of D-ER in patients with MS using pooled data from the two phase 3 trials.

Methods: Data were pooled from the two trials, and D-ER was compared with placebo for timed-walk responder rate, changes in walking speed, and the 12-item Multiple Sclerosis Walking Scale (MSWS-12).

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The anuran brainstem is segmentally organized into rhombomeres (r) and this segmental organization is uniquely preserved throughout development. We hypothesized that rhombomeres associated with cranial nerves (CN) also contain oscillators that are capable of producing rhythmic motor output (bursts) in isolation. We used in vitro brainstem preparations from pre- and post-metamorphic bullfrogs (Lithobates catesbeianus) to determine if rhombomeric organization of oscillators is present throughout development.

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