In recent years, Liaoyuan Central Hospital has carried out a number of endoscopic treatments and operations using laparoscopy, arthroscopy, choledochoscope, bronchoscope, endoscope and fibrolaryngoscope, and the results are very good. At the same time, coronary angiography, percutaneous transluminal coronary angioplasty, temporary pacemaker installation, inferior vena cava stenosis stent, bone marrow biopsy, endoscopic ligation of upper gastrointestinal bleeding, microsurgical intracerebral hematoma removal through lateral fissure approach, anterior cervical disc herniation, nucleus pulposus removal, bone grafting and plate internal fixation, severed arm, wrist joint amputation, replantation of severed finger, trabeculectomy of compound glaucoma, phacoemulsification, myopia excimer. New technologies such as nasal septum plasty under nasal endoscope, normative left hepatectomy, laparoscopic cholecystectomy and ovarian cyst resection have filled the gaps in Liaoyuan area, and 48 projects have won municipal scientific and technological progress awards. Among them, neurosurgery, neurology, cardiovascular medicine, internal medicine, hand surgery and basic surgery were rated as well-known departments in the city in 2002, and otorhinolaryngology and maxillofacial surgery, tumor intervention, hematology and respiratory medicine reached the advanced level in the province; Gastroenterology, orthopedics, ophthalmology, obstetrics and gynecology, and nephrology have all reached the leading level in the region.