HEMODYNAMICS

This study looks at two methods of releasing a tourniquet after upper arm surgery in people with high blood pressure. The goal is to see which method causes less of a sudden drop in blood pressure. About 68 adults with controlled high blood pressure will take part.

This study looks at whether giving the painkiller nalbuphine at different times during knee replacement surgery can better control pain and keep the heart and blood pressure stable in patients aged 65 and older. About 162 participants will receive the same dose of nalbuphine but …

This study tests whether using virtual reality (VR) goggles or a sedative drug called dexmedetomidine is better at reducing anxiety and stress in women having a planned cesarean section. About 52 mothers will be randomly assigned to one of the two methods. The goal is to find a s…

This study looks at 80 critically ill ICU patients to see if changes in gut blood flow after feeding can predict acute gastrointestinal injury. Using bedside ultrasound, researchers will monitor the main artery supplying the gut and link those readings to feeding problems. The go…

This study aims to find the best dose of remifentanil, a short-acting opioid, to prevent sudden changes in heart rate and blood pressure when a breathing tube is placed during anesthesia. About 99 adults having planned surgery will receive either lidocaine or sufentanil along wit…

This study is observing 242 pregnant women to learn how the heart and blood vessels change during pregnancy and after delivery. Researchers will use non-invasive tests like heart rate monitoring and ultrasound to track these changes. The goal is to better understand normal heart …

This study compares two operating-room monitors—stroke volume variation (SVV) and the Pleth Variability Index (PVI)—to see which more accurately predicts whether giving fluids will help the heart pump better during laparoscopic major abdominal surgery. About 300 adults having ele…