View clinical trials related to Hypotension.
Filter by:Hypotension is the most common complication of neuraxial anesthesia in obstetric patients and its prevalence in cesarean section is about 50-90%. Maternal hypotension causes unpleasant symptoms such as nausea, vomiting, loss of consciousness, respiratory depression, and cardiac arrest. Hypotension may reduce placental perfusion and result in fetal acidosis and neurological injury. Several techniques have been proposed to prevent hypotension. The recommended spinal block height to ensure patient comfort for Cesarean delivery is T4-6. Clinically, it is desirable that the spread of local anesthetic through the cerebrospinal fluid (CSF) achieves a sensory level no higher than the T4 dermatome to avoid extensive sympathetic block. It is also important that the spinal block level be no lower than T6 to avoid patient discomfort during peritoneal manipulation and uterine exteriorization. The effect of injection speed on spread of spinal anesthesia is controversial. Several studies have demonstrated more extensive spread with faster injection while others report either greater spread with slower injection, or no difference. Slow injection of hyperbaric bupivacaine 10 mg over 60 and 120 sec has been shown to reduce the incidence and severity of hypotension during Cesarean delivery under spinal anesthesia.
The objective of this study is to compare the rate of low blood pressure events (Intradialytic Hypotension: IDH) when intradialytic exercise is performed in the first half of the hemodialysis (HD) session as compared to that when intradialytic exercise is performed in the second half of the HD session. The investigators expect that there will be little to no difference in occurrence of IDH episodes between the two time periods based on the experience of the 3 centres and imaging studies of the heart with exercise in HD.
The incidence of hypotension perioperatively during operation of an acute hip fracture is unknown. As a surrogate factor the usage of vasopressor support is more adequate as the registration of vasopressor drugs are many times not complete in records. The investigators retrospectively investigated the anesthetic journals of 1100 patients with an acute hip fracture (AHF) noting confounding factors and the usage of vasopressors either by injections or infusions and then correlated these results to mortality at 30-, 90- and 365- days
Symptomatic hypotension during (or immediately following) hemodialysis complicates 5 to 30 percent of all dialysis treatments and is associated with increased morbidity and mortality. Kidney Disease Outcomes Quality Initiative (KDOQI) and European Best Practice Guidelines define intradialytic hypotension as the presence of a decrease in systolic blood pressure ≥20 mmHg or a decrease in mean arterial pressure by 10 mmHg, providing the decrease in blood pressure is associated with clinical events and need for nursing interventions. Common causes of intradialytic hypotension include excessive or rapid ultrafiltration, high blood flow during dialysis, CHF, taking the antihypertensive medications prior to HD, and others. One of the possible reasons that is surprisingly has not been approached worldwide for intra-dialytic hypotension could be more prevalent adrenal insufficiency in ESRD patients or a delay in the appropriate rise of endogenous serum cortisol given hemodialysis is considered by all means a stressful condition to the body. Investigators will assess first the prevalence of intradialytic hypotension at JUH dialysis unit. Investigators will screen patients who developed intradialytic hypotension for adrenal insufficiency by ordering random am cortisol. Then Investigators will give IV Hydrocortisone 100 mg prior to HD to patients who developed intra-dialytic hypotension and monitor their BP response during the HD treatments for 3 HD sessions (1 week, 3 HD sessions). After that, the same patients will receive 100 mg normal saline for 3 HD sessions. Both the administrator and the patient will be blinded for the interventions.
The aim of this research project is to find out whether a personalized definition of the lower blood pressure threshold based on the individual blood pressure profile by means of preoperative 24-hour blood pressure measurement can reduce organ damage (brain, kidney, heart) through reduced blood flow during surgery.
The purpose of this study is to find out which of the variables related to fluid responsiveness (e. g., perfusion index [PI], pleth variability index [PVI], pulse oximetry plethysmographic variance [ΔPOP]) can best predict hypotension during induction of anesthesia.
The aim of this randomized trial was to assess the efficacy of oral midodrine tablets for the management of intradialytic hypotension among critically ill patients with acute kidney injury.
The objective of this study is to evaluate the effect of LJPC-501 infusion on mean arterial pressure (MAP) or reduction in sum norepinephrine (NE) equivalent dosing, at Hour 2 after the start of LJPC-501, in pediatric patients who remain hypotensive despite receiving fluid therapy and vasopressor therapy. In addition, this study will evaluate the safety and tolerability of LJPC-501 in pediatric patients, the change in MAP over 24 hours after the start of LJPC-501, the change in serum lactate concentrations, and the change in Pediatric Logistic Organ Dysfunction (PELOD) scores.
This study evaluates the influences of the status of sympathovagal balance before tourniquet deflation on a decrease in arterial blood pressure following the deflation during total knee replacement arthroplasty
This is a randomized controlled trial. The present study involves an acute and chronic intervention, which is a water-based exercise (one session: to acute intervention; 12-weeks of aquatic exercise program: to chronic intervention). The sample will be composed by elderly enrolled in university extension program titled "Hidroginastica na Terceira Idade" (Hydrogymnastics in aging). It will be evaluated the effects of water-based exercise on hemodynamics, self-reported sleep quality, depressive symptoms, quality of life, body composition, level of physical activity and functional capacity. The investigators hypothesized that an acute water-based exercise under different intensities promotes hemodynamics changes in elderly. In addition, the investigators hypothesized that 12-weeks of aquatic exercise may lead improvements in self-reported sleep quality, depressive symptoms, quality of life, body composition, level of physical activity and functional capacity in elderly.