View clinical trials related to Hypotension.
Filter by:A prospective, single-arm, open-label, multicenter post-approval study to determine whether the use of the Acumen HPI Software to guide intraoperative hemodynamic management in non-cardiac surgery reduces the duration of intraoperative hypotension below a threshold of Mean Arterial Pressure (MAP)
Septorhinoplasty is a cosmetic surgery that many people are choosing to undergo. It can be done under general anesthesia, twilight anesthesia or regional anesthesia. Controlled hypotensive anesthesia is required to minimize bruising, swelling, and bleeding that reduces visibility in the operative field and hence satisfactory surgical outcome. The goal of our study to prove that regional block of the nose provides efficient hypotensive anesthesia
Maternal hypotension during spinal anaesthesia for Caesarean delivery may bring various adverse effects. It is therefore important to closely monitor hypotension during spinal anaesthesia, however current technology does not allow the blood pressure monitoring to respond in timely manner should there be any occurrence of hypotension. The investigators developed an advanced double-intravenous vasopressor automated system (ADIVA) so as to tackle this issue via novel algorithm to control blood pressure more rigorously with more stable haemodynamic profiles.
This study is to assess the blood pressure lowering effect of rice vinegar when consumed over a 12-week period by healthy adults ages 30-65 years old with prehypertension. Study subjects will be recruited online via ClaimIt software platform and randomized to receive either the active rice vinegar-based drink or placebo and will visit the Endothelix research study site in Houston, Texas, 6 times during the study (Week -2, 0, 4, 8, 12 and 16). Here, subjects will undergo blood pressure monitoring, endothelial function, and laboratory assessments.
We have designed OVATION-65 to evaluate the effects of permissive low blood pressure compared to usual care on markers of organ injury and survival in older patients.
Abnormalities in the regulation of cardiovascular system due to autonomic nervous system (ANS) dysfunction may lead to a sudden decline in blood pressure (BP) upon standing, sitting or performing activities/exercises in patients with Parkinson's Disease (PD). This sudden decline in BP is known as 'orthostatic hypotension' (OH). OH may cause dizziness and/or black-outs, which may increase the risk of falls. As falls are potentially dangerous and disabling, it is important to prevent their occurrence. Keeping BP within normal range upon change of posture or with activities is therefore of great significance. Pooling of blood in the abdominal blood vessels may be one of the reasons for OH to happen. This research focuses on strengthening the weak abdominal muscles of the participants so that the compressive action of these muscles can help decrease such pooling. Therefore, the researchers hypothesize that strengthening the abdominal muscles shall prove to be helpful in controlling orthostatic hypotension by preventing a sudden decline in blood pressure of the participants upon assumption of upright posture. The secondary hypothesis is that there exists a significant difference in the response of the cardiovascular system to a variety of postures/activities/exercises when patients of PD having cardiovascular autonomic dysfunction are compared with patients of PD with normal ANS function. This study has two parts - stage 1 and stage 2. Only stage 2 is a randomized controlled trial. Stage 1 involves testing the functional integrity of the autonomic nervous system, and observation of the cardiovascular responses of the participants to different postures/activities/exercises and to the use of an abdominal binder (which is a compressive garment worn around the abdomen). Findings of stage 1 shall help the researchers better understand the cardiovascular abnormalities present in such patients at rest and with activity. Stage 2 involves strength training for the abdominal muscles that is to be done by the participant at her/his residence for a period of 3 months followed by a second round of autonomic function testing and observation of the cardiovascular responses to the use of abdominal binder. Findings of stage 2 shall help the researchers determine if strength training of the abdominal muscles can be a useful strategy to counter the cardiovascular abnormalities found in the participants during the testing in stage 1.
To assess the impact of daily awakening from sedation on the amount of vasoactive medication required in the ICU. The hypothesis of this proposal is that the amount of vasoactive drug required to maintain an adequate mean arterial blood pressure will be reduced during a daily awakening from sedation.
Correct assessment of a patient's volume status is the most important goal for an anesthetist. However, most of the variables used for fluid response evaluation are invasive and technically challenging.Pulse oximeter is a non-invasive, standardized and widely used monitoring method in many countries. Our aim in this study is to investigate the usefulness of the noninvasive pleth variability index to predict hypotension in orthopedic hip fracture patients who underwent spinal anesthesia.
The purpose of this study is to learn more about the regulation of the veins of the abdomen by the autonomic (involuntary) nervous system, and how this may affect high blood pressure. Normally, the autonomic nervous system controls how much blood flows in the veins. In people with high blood pressure, however, the autonomic nervous system is changed. This change may affect the way blood flows in the veins of the abdomen which may play a role in their high blood pressure. About 32 participants will be screened for the study. The investigators estimate 16 will be eligible to participate in all of the study days.
The overall goal is to evaluate the predictive accuracy of a measure of autoregulatory adequacy derived from CVInsight and compare it with other measures in recognizing hypotensive events during hemodialysis..