National And Kapodistrian University Of Athens

This study compares two ways to remove infection at the tip of a tooth root: using a rotary bur (a small drill) or a piezoelectric unit (a vibrating tool). 124 adults with root infections will have surgery and then be followed for 12 months to see which method leads to better bon…

This study tests whether a membrane made from a patient's own blood (L-PRF) can improve bone healing after a tooth is pulled, compared to standard bone graft materials or natural healing. Forty adults who need a single-rooted tooth extracted are randomly assigned to one of four s…

This study looks at whether a structured educational program, added to usual care, can help people who have surgery for lung cancer. The goal is to see if it improves how well they accept their disease, their quality of life, and their pain levels. About 160 participants are spli…

This study looks at a new type of oxygen device (asymmetrical high-flow nasal cannula) for patients recovering from heart surgery. About 63 adults who need extra oxygen after their breathing tube is removed will be randomly assigned to get the new device, a standard high-flow dev…

This study tests whether a special patch that delivers pulsed radiofrequency energy can reduce knee pain in people with osteoarthritis. Fifty adults aged 40-75 with chronic knee pain will receive either the real patch or a sham device. Researchers will measure pain and function o…

This study tracks 40 people with nasal polyps and severe asthma who are taking mepolizumab, a drug that reduces inflammation. Researchers collect nose, blood, and sputum samples before treatment and at 3, 6, and 12 months to see how the drug affects symptoms, nose bacteria, and g…

This study tests whether placing a lead apron on a patient's lower belly and pelvis during heart procedures can reduce radiation exposure for the doctor. The trial involves 500 adults undergoing heart catheterization through the wrist. Researchers will measure the doctor's radiat…