The clinical implications of variants of vena cava inferior and aorta on retroperitoneal surgery

Abstract

Objective: to study variants of retroperitoneal vascular structure and its clinical implications on retroperitoneal surgery in patients with cervical cancer IA–IIB stage. Materials and methods. 101 patients who underwent paraaortic and bilateral pelvic lymphadenectomy were included in this study. 10 patients of the first group with anomalies of inferior vena cava, renal arteries and veins, common iliac vein and ovarian vessels were compared with 91 patients of the second group without anomalies. Results. Variants of major retroperitoneal vascular structure were present in 10 (9.9 %) patients. Supernumerary renal arteries and veins observed in 5 (4.9 %) patients; retroaortic left renal vein type I and II – in 3 (3.0 %) patients. Double vena cava inferior detected in 1 (1.0 %) patient. Patients with variants of retroperitoneal vascular structures hadn’t vessel injury. There was no difference in intraoperative hemorrhage, transfusion red blood cell, rate of intraoperative hemoglobin and removed paraaortic lymph nodes between the groups. Risk factors for intraoperative bleeding in patients with cervical cancer, depending on the presence or absence of anomalies of retroperitoneal vessels had no significant difference. Conclusion. Despite the fact that the variants of retroperitoneal vascular structures are rare (9.9 %), the success of retroperitoneal surgery is associated with the knowledge of vascular variations which decrease serious, life-threatening complications.