title: Ureteral stricture developing after partial nephrectomy with a microwave tissue coagulator: case report.
abstract: A 32-year-old man with a 1.7-cm tumor in the left kidney underwent laparoscopy-assisted partial nephrectomy. Although his postoperative course was uneventful, a 6-month postoperative CT scan showed hydronephrosis secondary to a severe stricture at the ureteropelvic junction. Heat injury to the urinary tract was strongly suspected. The use of microwave tissue coagulator for the tumor close to the renal sinus and excessive coagulation should be avoided to prevent heat-related complications.
authors.affiliation: Department of Renal and Genito-Urinary Surgery, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan. harachan@med.hokudai.ac.jp
authors.forename: Toru
authors.initials: T
authors.lastname: Harabayashi
authors.forename: Nobuo
authors.initials: N
authors.lastname: Shinohara
authors.forename: Hidehiro
authors.initials: H
authors.lastname: Kakizaki
authors.forename: Kaname
authors.initials: K
authors.lastname: Ameda
authors.forename: Katsuya
authors.initials: K
authors.lastname: Nonomura
authors.forename: Tomohiko
authors.initials: T
authors.lastname: Koyanagi
mesh_terms: D000328:Adult; D016063:Blood Loss, Surgical / Q000517:prevention & control; D004564:Electrocoagulation / Q000009:adverse effects* / Q000295:instrumentation; D005500:Follow-Up Studies; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging / Q000209:etiology*; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D010535:Laparoscopy / Q000009:adverse effects / Q000379:methods; D008297:Male; D008872:Microwaves; D009392:Nephrectomy / Q000009:adverse effects / Q000379:methods*; D018570:Risk Assessment; D014057:Tomography, X-Ray Computed; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*; D014567:Urography / Q000379:methods