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http://dx.doi.org/10.1007/BF03262470 | DOI Listing |
Front Neurol
January 2025
Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, MD, United States.
Background: Postural Orthostatic Tachycardia Syndrome (POTS) is a complex form of dysautonomia that presents with abnormal autonomic reflexes upon standing, leading to symptoms such as lightheadedness, tachycardia, fatigue, and cognitive impairment. The COVID-19 pandemic has brought renewed attention to POTS due to its overlap with post-acute sequelae of COVID-19 (PASC). Studies have found that a substantial percentage of COVID-19 survivors exhibit symptoms resembling POTS, elevating POTS diagnoses to previously unseen levels.
View Article and Find Full Text PDFSci Rep
January 2025
School of Engineering, The University of Manchester, Manchester, UK.
This study examines how heart rate (HR) affects hemodynamics in a South African infant with Coarctation of the Aorta. Computed tomography angiography segments aortic coarctation anatomy; Doppler echocardiography derives inlet flow waveforms. Simulations occur at 100, 120, and 160 beats per minute, representing reduced, resting, and elevated HR levels.
View Article and Find Full Text PDFNeurosci Lett
January 2025
Division of Anesthesiology, Niigata University Graduate School of Medical and Dental Sciences, 1-757 Asahimachi Dori, Chuo-Ku, Niigata City, Niigata 951-8510, Japan. Electronic address:
Spinal cord injuries (SCIs) can lead to severe neuropathic pain and increased risk of myocardial infarction and heart failure; therefore, the use of analgesics against SCI-induced pain should be minimized because of their adverse effects on the cardiovascular system. Ivabradine, a blocker of hyperpolarization-activated cyclic nucleotide-gated cation (HCN) channels, is used as a bradycardic agent, but recent studies focused on it as an analgesic agent for peripheral neuropathic pain. However, the analgesic effects of ivabradine on central neuropathic pain, such as SCI-induced pain, have not been examined.
View Article and Find Full Text PDFIndian J Crit Care Med
December 2024
Department of Critical Care Medicine, Ruby Hall Hospital, Pune, Maharashtra, India.
Objectives: Heart rate control using beta-blockers in sepsis has traditionally been avoided because of concerns with worsening cardiac index and organ perfusion. Recent studies has explored the possible beneficial effects of targeted heart rate control in patients with septic shock who have tachycardia despite initial resuscitation. We performed a systematic review and meta-analysis to explore the effects of heart rate control in septic shock patients.
View Article and Find Full Text PDFJ Anaesthesiol Clin Pharmacol
August 2024
Department of Anesthesia, RNT Medical College, Udaipur, Rajasthan, India.
Background And Aims: An exaggerated hemodynamic response to endotracheal intubation is observed in hypertensive patients, and its attenuation proves challenging. The role of oral ivabradine, a unique heart rate-lowering drug with a favorable hemodynamic profile, is not yet studied. The aim of this study was to evaluate the effect of oral ivabradine on the attenuation of hemodynamic response to endotracheal intubation in hypertensive surgical patients assessed by rate pressure product (RPP), which is a very reliable indicator of myocardial oxygen demand.
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