In recent years, the C-octanoate breath test has attracted attention as a simple and noninvasive method of assessing gastric emptying of solids. However, practical procedures for test meals, parameters used, and sampling points have not yet been established. Moving toward a more convenient method, here we examined the influences of sampling interval and duration on the C-octanoate breath test performed on 15 healthy subjects using a commercially-available instant cupcake. Breath samples were obtained every 15 minutes within 4 hours, and every 30 minutes in the subsequent 2 hours. Using computer simulation, the time it took for the fitting curve to peak (Tpeak) was calculated in each setting with each interval (15, 30, 60, and 120 minutes) and test duration (3, 4, 5, and 6 hours). When the sampling interval widened over 30 minutes, the difference from the original 6-hour data became larger than 20% of the coefficient of variance. When the sampling duration was shortened to 3 hours, no appropriate fitting curve could be achieved. These results suggest that a sampling duration of 4 hours at 30-minute intervals seems to be suitable for practical use of the test.
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http://dx.doi.org/10.1097/01.mcg.0000136411.94056.5f | DOI Listing |
Sleep Breath
January 2025
Department of Cardiac and Vascular Diseases, Jagiellonian University Medical College, John Paul II Hospital, Prądnicka 80, Kraków, 31-202, Poland.
Background: Obstructive sleep apnoea (OSA) may lead to heart rhythm abnormalities including bradycardia. Our aim was to ascertain clinical and echocardiographic parameters in patients with OSA in whom severe bradycardia was detected in an outpatient setting, as well as to evaluate the efficacy of CPAP therapy on heart rate normalization at the early stages of treatment.
Methods: Fifteen patients mild, moderate or severe OSA and concomitant bradycardia were enrolled.
Am J Med Genet A
January 2025
Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Gastrointestinal (GI) symptoms are common in patients with Williams-Beuren syndrome (WBS), but their prevalence and possible causes are not yet fully known. This study assessed GI symptoms' prevalence and their possible origin by performing a predefined set of tests in adult WBS patients. Laboratory tests and a questionnaire were administered to assess GI symptoms and dietary habits.
View Article and Find Full Text PDFFront Med (Lausanne)
January 2025
Department of Gastroenterology, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, China.
Introduction: () is becoming more resistant to antibiotics, and the implementation of individualized therapy is highly valuable for its eradication. This study aimed to investigate the efficacy and safety of individualized treatment guided by antibiotic susceptibility testing (AST) with a 10-day or 14-day course for the eradication of .
Methods: This was a prospective, open-label, single-center, quasi-randomized trial in which 220 participants were randomized into groups based on AST results as AST-10-day ( = 98) and AST-14-day ( = 112) treatment groups.
J Ultrasound
January 2025
Clinical Unit of Neurology, Department of Medicine, Surgery and Health Sciences, University Hospital and Health Services of Trieste, ASUGI, University of Trieste, Strada di Fiume, 447, 34149, Trieste, Italy.
Introduction: Post-stroke cognitive impairment (PSCI) and dementia affect short- and long-term outcome after stroke and can persist even after recover from a physical handicap. The process underlying PSCI is not yet fully understood. Transcranial Doppler ultrasound (TCD) is a feasible method to investigate cerebrovascular aging or dementia, through the pulsatility index (PI), the cerebrovascular reactivity (e.
View Article and Find Full Text PDFMicroorganisms
January 2025
Department of Clinical Biochemistry, Pediatric Institute, Faculty of Medicine, Jagiellonian University Medical College, 30-663 Krakow, Poland.
Small intestinal bacterial overgrowth (SIBO) is a disorder characterized by the excessive growth of bacteria in the small intestine. Bacterial overgrowth disrupts the bacterial balance and can lead to abdominal pain, weight loss, and gastrointestinal symptoms, including bloating, diarrhea, and malabsorption. SIBO is widespread in the population.
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