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  • Title: Current results of left gonadal vein transposition to treat nutcracker syndrome.
    Author: Debucquois A, Salomon du Mont L, Bertho W, Kaladji A, Hartung O, Rinckenbach S.
    Journal: J Vasc Surg Venous Lymphat Disord; 2021 Nov; 9(6):1504-1509. PubMed ID: 33737260.
    Abstract:
    OBJECTIVE: Nutcracker syndrome can cause disabling chronic pain requiring surgical intervention. At present, data describing a straightforward management approach are lacking. Transposition of the left gonadal vein is one of the surgical therapeutic alternatives. The aim of the present study was to describe our clinical results with gonadal vein transposition. METHODS: All 11 patients from three centers who had undergone left gonadal vein transposition for nutcracker syndrome from 2016 to 2019 were retrospectively included. The surgical cases were mainly selected according to the morphologic criteria of the left gonadal vein. The diameter and length dictated the type of approach (laparotomy or retroperitoneal) and the transposition level. A minimally invasive retroperitoneal approach was preferred. Pain was assessed using a numeric rating scale. RESULTS: We included 11 patients (10 women) with a median age of 35 years (range, 25-69). Preoperative computed tomography angiography showed anterior nutcracker syndrome in 10 patients (91%). All 11 patients had experienced lower back and/or pelvic pain, which was associated with pelvic congestion syndrome in 6 patients (55%) and hematuria in 5 patients (45%). The median preoperative numeric rating scale score for pain was 7.0 (range, 3.5-10.0) and 6.0 (range, 3.5-8.0) for lower back pain and pelvic pain, respectively. At the level of the iliac vein crossing (external or common), the median diameter of the left gonadal vein was 7.87 mm (range, 6.45-11.28). The left gonadal vein was transposed to the inferior vena cava in one case (9%), the left external iliac vein in five (45%), and the left common iliac vein in five cases (45%). The median in-hospital stay was 4 days (range, 2-20 days). Two early complications (18%) requiring surgical revision occurred: one of active bleeding and one hematoma. The median follow-up was 15 months (range, 6-44 months). The median postoperative pain score was 1.0 (range, 0.0-4.0) and 0.0 (range, 0.0-6.0) for lower back and pelvic pain, respectively. Incisional and/or neuropathic pain was noted, with a median score of 3.5 (range, 1.0-6.0) in seven patients (64%). Two late complications (18%) were observed: one case of thrombosis and one case of anastomotic stenosis. The hematuria had disappeared in all patients who had presented with it initially. CONCLUSIONS: Left gonadal vein transposition can be proposed as a first approach if the diameter of the left gonadal vein is sufficient to perform the anastomosis. It is an easily achievable, minimally invasive alternative that achieves satisfactory results without the use of foreign material.
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