Παρασκευή 7 Ιουλίου 2017

Laparoendoscopic single-site retroperitoneoscopic adrenalectomy: bilateral step-by-step technique

Abstract

Background

Laparoscopic adrenalectomy is the gold standard surgical approach for small benign adrenal tumors [1]. Several surgical approaches were developed in order to overcome the difficulty to access the adrenal glands, located in the upper retroperitoneum space [24]. Laparoendoscopic single-site posterior retroperitoneoscopic adrenalectomy (LESS-PRA) is an emerging technique that reduced the multiple trocar-related trauma and improved cosmetic outcomes while minimizing postoperative morbidity [58]. The aim of this study was to describe our step-by-step technique for LESS-PRA and to compare our perioperative outcomes with the conventional 3-port lateral retroperitoneoscopic adrenalectomy (LRA).

Methods

A retrospective review was carried out from February 2008 to January 2016 that included 100 patients with adrenal tumors smaller than 4 cm. Study exclusion criteria were defined as tumor size greater than 4 cm, patients older than 80 years, and body mass index (BMI) greater than 40. A total of 20 patients underwent LESS-PRA and 80 patients underwent 3-port lateral retroperitoneoscopic laparoscopic adrenalectomy. Patient's demographic data and perioperative outcomes were compared and statistically analyzed. The cosmetic satisfaction was evaluated with a visual analog scale.

Results

Estimated blood loss was higher in LRA (100 vs. 50 ml; p = 0.35). Operative time was longer in LESS-PRA than LRA (100.0 vs. 60 min; p < 0.001). Analgesic time necessary for LRA was longer than LESS-PRA (40 vs. 24 h; p < 0.001). Cosmetic satisfaction score was higher in LESS-PRA (9.5 vs. 8.6; p = 0.03). There were no significant differences in perioperative complications and length of hospital stay. No conversion to conventional laparoscopic or open surgery was necessary.

Conclusion

LESS-PRA presented comparable functional and perioperative outcomes to LRA for small adrenal tumors. Although LESS-PRA was associated with longer operative time, it provided inferior estimated blood loss, analgesic time, and improved cosmetic satisfaction.



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