The ureter is as small as a syringe hole, implant a ureteral stent to relieve the patient's pain.

"I feel obviously different after the operation, and I feel more relieved when the reexamination results come out." Last week, Mr. Ye went to the Urology Department of Sijing Hospital for a reexamination and found out that the ureter is now unobstructed, and he was very happy. A month ago, he was tortured and told that his ureter was narrowed to the size of a syringe hole, and doctors implant a Ureteral Stent to relieve his pain. It is reported that Sijing Hospital is the first to attempt to perform holmium laser ureteral stricture incision surgery under ureteroscopy.

According to reports, 54-year-old Mr. Ye had an operation for ureteral stones 10 years ago. In September this year, he suddenly suffered from low back pain. He suffered at home for a month and saw that his condition was not good, so he went to the nearest Sijing Hospital for examination. Preoperative B-ultrasound and CT examinations showed that Mr. Ye had severe hydronephrosis in his right kidney and needed immediate surgery.

Unexpectedly, another difficult situation occurred during the operation. Ureteroscopy revealed severe upper ureteral stenosis. How narrow is it? "It's only as big as a syringe hole, can only allow a PTFE guidewire to pass through it with difficulty." The surgeon described it this way. In the next operation, the doctor used holmium laser radiation to incise the narrowed section of the ureter under direct vision of the ureteroscope and guided by the PTFE coated guidewire, and advanced the ureteroscope while cutting, "opening up" the narrowed section step by step.

Getting through was only the first step. To be sure, the doctor decided to implant a Double J stent to prevent restenosis. "The implantation of the stent also depends on the patient's physical condition." The surgeon said that Mr. Ye's ureter was obviously dilated above the stricture section, and he carefully checked that there was no perforation. The surgical team cooperated closely, and under the step-by-step guidance of the guide wire, the "needle thread" was already in place. Two stents were placed in the opened ureter. One month after the operation, Mr. Ye's hydronephrosis on his right side basically returned to normal.

According to Cao Zhihua, director of the Department of Urology at Sijing Hospital, ureteral stenosis refers to the narrowing of part or all of the ureteral lumen due to various reasons. Although the continuity of the lumen is not interrupted, it usually causes varying degrees of upper urinary tract obstruction and hydronephrosis. The clinical manifestations are low back pain, lumbar distension, and complications such as kidney stones and infection. When infection occurs, fear will occur. Symptoms such as cold, fever or pyuria. If the stenosis is bilateral, uremia may develop. Generally speaking, in addition to congenital factors, inflammation, injury and surgical scars are the main causes of disease. People with a history of urinary tract, abdominal and pelvic surgery are at high risk. Patients can be diagnosed through B-ultrasound examination, isotope renogram, intravenous pyelography, retrograde ureterography, CT urography, and magnetic urography.

"Patients with predisposing causes must seek medical treatment in time if they develop relevant symptoms." Cao Zhihua said that effective treatment can help restore the continuity and function of the ureteral cavity, relieve obstruction in time, eradicate infection, and save and protect kidney function. At present, ureteroscopic holmium laser incision for ureteral stricture is a minimally invasive technology that has emerged in recent years. It has the advantages of small trauma, fast recovery, and accurate curative effect.

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