Internal hemorrhoid

This study compares two standard treatments for bleeding internal hemorrhoids: hemorrhoidal artery embolization (HAE) and rubber band ligation (RBL). HAE uses a catheter to block blood flow to the hemorrhoid with tiny particles or coils, while RBL uses rubber bands to cut off cir…

This study tests a procedure called rectal artery embolization (RAE) to treat bleeding from internal hemorrhoids. Doctors use imaging to guide tiny particles into the blood vessels feeding the hemorrhoids, blocking blood flow to reduce bleeding. The trial enrolls 20 adults with g…

This study is creating a registry to track how well a procedure called hemorrhoid artery embolization works for people with chronic bleeding internal hemorrhoids. Researchers will follow 1,200 adults for up to 3 years after the procedure, collecting data on bleeding, symptoms, an…

This study compares two minimally invasive procedures for grade II/III hemorrhoids: radiofrequency ablation (using heat) and Doppler-guided artery ligation with mucopexy (tying off blood vessels). The goal is to see if the newer heat-based method is as good as the standard one at…

This study tests a new MRI contrast agent called ferumoxytol, made from iron nanoparticles, to see if it can safely and effectively image veins in people with vein diseases. Current dyes can be risky for patients with kidney problems, but ferumoxytol may be safer and last longer …

This study will compare three surgical treatments for severe internal hemorrhoids: laser, energy therapy, and traditional surgery. About 60 adults with grade III hemorrhoids will choose their preferred treatment. The goal is to see which method provides less pain after surgery an…

This study will follow 60 adults who are having laser surgery for internal hemorrhoids. Researchers will measure pain after surgery, how long people stay in the hospital, and how satisfied patients are with the results. The goal is to understand how well this laser procedure work…

This study tests a procedure called hemorrhoidal artery embolization (HAE) for people with internal hemorrhoids who have not had success with other treatments or cannot have surgery. The procedure blocks certain arteries to reduce blood flow to the hemorrhoid tissue, aiming to im…