title: Retraction-Related Acute Liver Failure after Urological Laparoscopic Surgery.
abstract: Liver retraction is necessary for optimal exposure during laparoscopic right renal surgery. We described a patient who developed fulminant liver failure as a result of liver retractor-induced excessive ischemic changes in the right lobe of the liver. A 37-year-old male underwent a right side laparoscopic pyeloplasty for ureteropelvic junction obstruction. At the beginning of the operation, a small snake retractor was placed through a 5-mm port under direct vision. The liver was lifted in the appropriate direction to optimize exposure by using the laparoscope holder. The operation was prolonged. However, we achieved significant improvements in the efficiency of liver retraction using the holder. On the first postoperative day, the patient's serum levels of GOT, GPT and LDH had remarkably increased. A computerized tomogram confirmed the presence of excessive ischemic changes of the right lobe of the liver. Our method which used a laparoscope holder device for liver retraction maintained a better surgical field. However, neglecting to make minor adjustments to the positioning of the retractor can cause significant pressure on the liver parenchyma in a single area. As surgical procedures increase in complexity, the surgeon should keep these potential side effects in mind and shift the retraction point at regular intervals. In this report, we discussed various types of retractor-related liver injuries and their management, and highlighted the importance of intermittent release of retraction during prolonged surgery.
authors.affiliation: Department of Urology, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Toyama, Japan.
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Nozaki
authors.affiliation: Department of Urology, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Toyama, Japan.
authors.forename: Tomonori
authors.initials: T
authors.lastname: Kato
authors.affiliation: Department of Urology, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Toyama, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Komiya
authors.affiliation: Department of Urology, Graduate School of Medicine and Pharmaceutical Sciences for Research, University of Toyama, Toyama, Japan.
authors.forename: Hideki
authors.initials: H
authors.lastname: Fuse
keywords: Acute liver failure; Laparoscopic surgery; Liver injury; Retractor