View clinical trials related to Hypotension.
Filter by:The aim of the researchers was to evaluate the adequacy of graft function in the postoperative period of patients who underwent renal transplantation and encountered hypotension in the intraoperative period.
The goal of this Randomized controlled trial is to investigate the effect of shortening the duration of preoperative oral carbohydrate drinks on blood pressure after anesthesia induction in elderly patients undergoing joint replacement surgery. The main question it aims to answer is Whether preoperative oral carbohydrate drinks can reduce the incidence of hypotension after anesthesia-induced hypotension in elderly patients undergoing joint replacement surgery.According to the numerical table method, the patients in the experimental group will drink carbohydrate drinks the night before the operation and 3 hours before the operation, and the control group patients will routinely fast
The aim of the current study is to evaluate the effects of the Hypotension Prediction Index (HPI) on the degree of intraoperative hypotension in patients undergoing free flap surgery. The hypothesis is that implementation of the HPI algorithm will reduce the time-weighted average (TWA) intraoperative hypotension below a threshold of 65 mmHg (16), and to reveal the relationship between the episodes of hypotension and free flap viability and function.
The goal of this clinical trial is to evaluate the effect of transcutaneous spinal cord stimulation on blood pressure in individuals with an acute spinal cord injury (within 30 days of injury). Blood pressure instability, specifically orthostatic hypotension (a drop in blood pressure when moving lying flat on your back to an upright position), appears early after the injury and often significantly interferes with participation in the critical rehabilitation time period. The main questions it aims to answer are: 1. Can optimal spinal stimulation increase blood pressure and resolve orthostatic symptoms (such as dizziness and nausea) when individuals undergo an orthostatic provocation (a sit-up test)? Optimal stimulation and sham stimulation (which is similar to a placebo treatment) will be compared. 2. What are the various spinal sites and stimulation parameters that can be used to increase and stabilize blood pressure to the normal range of 110-120 mmHg? Participants will undergo orthostatic tests (lying on a bed that starts out flat and then moved into an upright seated position by raising the head of bed by 90° and dropping the base of the bed by 90° from the knee) with optimal and sham stimulation, and their blood pressure measurements will be evaluated and compared.
SynABPM 2 proof-of-efficacy is a retrospective, multicentre, observational study performed in patients affected by hypotensive reflex syncope who had performed two ABPMs, one before and another after any therapeutical intervention aimed to increase arterial blood pressure
Identifying the mechanism of non-cardiac syncope is the essential prerequisite for an effective personalized therapy. Aim of this multicentre, prospective, cross-sectional, observational study is to assess effectiveness and diagnostic yield of a two-step standardized assessment which consists of 24-hour ambulatory blood pressure monitoring (ABPM) and of tilt-table Short Cardiovascular Autonomic Function Battery (SCAFB) which consists in carotid sinus massage (CSM), limited to patients ≥40-year-old, standing test, and head-up tilt test (HUT) performed one after the other in an uninterrupted sequence as a single procedure on a tilt table
This project will investigate the effect of spinal cord transcutaneous stimulation on blood pressure in individuals with a chronic spinal cord injury who experience blood pressure instability, specifically, orthostatic hypotension (a drop in blood pressure when moving from lying flat on your back to an upright position). The main questions it aims to answer are: 1. What are the various spinal sites and stimulation parameters that normalize and stabilize blood pressure during an orthostatic provocation (70 degrees tilt)? 2. Does training, i.e., exposure to repeated stimulation sessions, have an effect on blood pressure stability? Participants will undergo orthostatic tests (lying on a table that starts out flat, then tilts upward up to 70 degrees), with and without stimulation, and changes in their blood pressure will be evaluated.
The goal of this clinical trial is to evaluate how accurately the CART-I plus developed by Sky Labs can measure blood pressure. The primary endpoint of this clinical trial is accuracy (mmHg) of 'CART-I plus' which is obtained by calculating mean error and standard deviation of blood pressure differences between 'CART-I plus' and the gold standard for non-invasive method, auscultatory method. The reference readings are taken by auscultatory method using a sphygmomanometer and a stethoscope. The mean errors and standard deviations are calculated both sample- and subject-wise.
The parturients may suffer from hypotension after spinal anesthesia and the incidence could be as high as 70-80% when pharmacological prophylaxis is not used. Acupuncture was reported to treat hypotension both in human and animal studies. Possible mechanisms include modulating cardiovascular and sympathetic system. In this prospective, double-blinded, randomized clinical trial, we tend to investigate the effect of transcutaneous electric acupoint stimulation (TEAS) on hypotension in parturients undergoing cesarean section.
This study is intended to include elderly patients who are selected to undergo lower limb and pelvic orthopedic surgery under spinal anesthesia. Through prospective, randomized and controlled clinical trials, the investigators will observe the effect of this treatment on the incidence of hypotension in elderly patients after spinal anesthesia through TEAS points Neiguan and Quchi before or during surgery, and further explore its related mechanisms.