A case of a large leiomyomatous uterus with multiple arteriovenous malformations and subsequent high cardiac output state with severe four chamber cardiac enlargement.

Uterine arteriovenous malformations (AVMs) are rare and potentially life-threatening. They can be congenital or acquired. Uterine artery embolization or hysterectomy are considered mainstays of management. AVMs can be associated with leiomyomas, and patients may require both procedures. We present a case of a 42-year-old woman with a massively enlarged leiomyomatous uterus supplied and drained by multiple large AVMs, leading to high cardiac output state with severe four chamber cardiac dilation. Management required a multidisciplinary team of interventional radiology, gynecologic oncology surgery, vascular surgery, cardiac anesthesiology, cardiology, and urology and a 2-day interventional approach of preoperative arterial embolization followed by hysterectomy.

Acute kidney injury following total joint arthroplasty: retrospective analysis.

INTRODUCTION: Postoperative acute kidney injury (AKI) following arthroplasty has not been well studied. Our aim was to identify factors associated with increased risk of AKI. METHODS: The medical records for adult patients who underwent elective total joint arthroplasty during June 1, 2007 to May 31, 2010 at the Mayo Clinic were reviewed to identify patients with normal preoperative kidney function who experienced perioperative AKI, defined as an increase in serum creatinine (sCr) by 26.4 µmol·L(-1). For each AKI case, two controls were identified and matched for age, sex, and type of operation. Medical records were abstracted for demographics, comorbid conditions, and preoperative, intraoperative, and postoperative variables. Conditional logistic regression analyses were performed to identify risk factors for AKI. RESULTS: Of the 9,171 patients who underwent joint replacement operations, 167 with normal preoperative renal function developed AKI with a median [25(th), 75(th)] increase in sCr of 35.4 [26.4, 44.2] µmol·L(-1). No patient required dialysis. A higher than normal body mass index, diabetes mellitus, the number of baseline antihypertensive medications, cerebral or peripheral vascular disease, use of general anesthesia, and perioperative blood transfusions were independently associated with risk for AKI. Hospital length of stay and intensive care admissions were greater in AKI patients, and in 12.0% of patients, sCr remained at least 26.4 µmol·L(-1) higher than preoperative baseline at least three months after surgery. CONCLUSION: In this case-control investigation, we identified several factors associated with the development of postoperative AKI. Recognition of these risk factors could allow for the adoption of perioperative renal protective strategies in patients undergoing arthroplasty.