The present study has been performed to assess the effects of alinidine on diastolic duration during exercise in chronic coronary artery disease. Twelve male patients with stable effort angina and without previous myocardial infarction were studied. They received alinidine or placebo in a double-blind randomized crossover trial for 3 days after a wash-out period of 4 days. Alinidine was administered at a dosage of 30 mg 3 times a day. At the end of each treatment the patients underwent upright bicycle exercise. Left ventricular time intervals were obtained by means of carotid thermistor plethysmography. Diastolic duration was calculated by subtracting the electromechanical systole from the R-R interval and expressed as a percentage of the cardiac cycle (%D). Alinidine increased both total exercise duration from 246.7 +/- 120.7 to 346.6 +/- 114.1 s (p less than 0.05) and time to 0.1-mV ST segment depression from 98.3 +/- 53 to 187.2 +/- 105 s (p less than 0.05). Similarly the drug induced a reduction of the rate-pressure product and of the extent of ischemic ST segment depression during exercise. %D was increased by alinidine both at rest and during exercise. A direct linear regression between R-R and %D was found after both alinidine and placebo treatments either at rest or during exercise. Nevertheless, no difference was observed between both slopes and intercepts. Therefore, since the relationship between R-R interval and %D was unaffected by alinidine, it was possible to hypothesize that the changes in diastolic duration were due only to the bradycardic action of the drug.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1159/000174610 | DOI Listing |
Sleep
January 2025
Department of Sleep Medicine, Mental Health Center of Shantou University, Shantou, Guangdong, People`s Republic of China.
Study Objectives: Insomnia with objective short sleep duration is associated with increased hypertension risk. We aimed to explore the mechanism underlying the association between objective short sleep duration and hypertension in patients with chronic insomnia disorder (CID) by multi-omics.
Methods: CID was defined according to International Classification of Sleep Disorders-3, and objective short sleep was based on the median value of total sleep time of the overall subjects during an overnight polysomnography.
Eur Respir J
January 2025
Université Paris-Saclay, INSERM Unité Mixte de Recherche en Santé 999 (HPPIT), Service de Pneumologie et Soins Intensifs Respiratoires, Hôpital Bicêtre (Assistance Publique-Hôpitaux de Paris), Le Kremlin-Bicêtre, France.
Introduction: Pulmonary arterial hypertension (PAH) is a progressive disease associated with significant morbidity and mortality. Sotatercept is a first-in-class activin signalling inhibitor that acts to restore the balance between the growth-promoting and growth-inhibiting signalling pathways.
Methods: This post-hoc, exploratory, pooled analysis combines data from the double-blind placebo periods of the phase 2 PULSAR (NCT03496207) and phase 3 STELLAR (NCT04576988) studies.
Eur Stroke J
January 2025
Department of Neurology, University Hospital RWTH Aachen, Aachen, Germany.
Introduction: Distal arterial occlusions can cause measurable changes in the flow wave profile in proximal segments of the feeding artery. Our objective was to study the diagnostic accuracy of point-of-care ultrasound (POCUS) of the common carotid arteries (CCA) for detection of anterior circulation large vessel occlusion (ac-LVO) in patients with suspected stroke.
Patients And Methods: We conducted a prospective, single-center, observational study of adult patients with suspected stroke admitted in the emergency department.
Int J Surg
January 2025
Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
Background: Acute kidney injury (AKI) is a common postoperative complication, and hypotension may contribute. We therefore tested the primary hypothesis that individualized intraoperative blood pressure regulation reduces postoperative AKI in older surgical patients.
Methods: We enrolled patients ≥60 years old scheduled for elective major abdominal surgery with invasive arterial pressure monitoring.
J Prim Care Community Health
January 2025
Lehigh University, Bethlehem, PA, USA.
Objective: This study explores the associations between various sleep durations and metabolic health indices, including systolic blood pressure (SBP), diastolic blood pressure (DBP), total cholesterol levels, high-density lipoprotein (HDL) cholesterol, and waist circumference.
Methods: Data from the National Health and Nutrition Examination Survey (NHANES) 2021 to 2023, were analyzed. MANOVA and Bonferroni-adjusted ANOVAs were conducted to examine the relationships between sleep duration (sleep deprivation (≤5 h), short sleep (5-7 h), recommended sleep (7-9 h), and long sleep (>9 h)) and metabolic health indices.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!