HEMODYNAMICS

This study aims to find the safest way to release a surgical tourniquet from a patient's arm. It will compare two release methods in 68 patients with high blood pressure who are having arm surgery. The goal is to see which method better prevents a sudden, large drop in blood pres…

This study aims to find out which of two common operating room monitors is better at telling if a patient needs extra fluids during major laparoscopic abdominal surgery. About 300 adults having this type of planned surgery will receive two small, standard fluid infusions. Researc…

This study is looking at the best time to give a pain medication called nalbuphine to older adults having knee replacement surgery. Researchers want to see if giving the drug at different points before, during, or after surgery leads to better pain control and more stable blood p…

This study is testing two different ways to help mothers feel less anxious and stressed during a planned cesarean section. It will compare a sedative medicine given through an IV with a non-drug approach using virtual reality (VR) goggles. Researchers will measure the mothers' an…

This study aims to find the right doses of anesthesia drugs to prevent blood pressure and heart rate spikes when placing a breathing tube during surgery. Researchers will compare three different drug combinations in 99 healthy adults having elective surgery. The goal is to gather…

This study aims to understand how the heart and blood vessels naturally change during a healthy pregnancy and after birth. Researchers will measure heart rate patterns and blood pressure in 242 pregnant participants to create a detailed picture of normal adaptation. The goal is t…

This study aims to understand why some critically ill patients in the ICU have trouble tolerating liquid food given through a tube. Researchers will use a bedside ultrasound machine to measure blood flow in the gut before and after feeding. They hope to find patterns that can pre…