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Robot-assisted Posterior Retroperitoneoscopic Adrenalectomy Using Single-port Access: Technical Feasibility and Preliminary Results

 Jae Hyun Park  ;  Soo Young Kim  ;  Cho-Rok Lee  ;  Seulkee Park  ;  Jun Soo Jeong  ;  Sang-Wook Kang  ;  Jong Ju Jeong  ;  Kee-Hyun Nam  ;  Woong Youn Chung  ;  Cheong Soo Park 
 ANNALS OF SURGICAL ONCOLOGY, Vol.20(8) : 2741-2745, 2013 
Journal Title
Issue Date
Adenoma/surgery* ; Adrenal Gland Neoplasms/pathology ; Adrenal Gland Neoplasms/surgery* ; Adrenalectomy/adverse effects ; Adrenalectomy/methods* ; Aged ; Blood Loss, Surgical ; Humans ; Laparoscopy/adverse effects ; Laparoscopy/methods* ; Length of Stay ; Middle Aged ; Operative Time ; Patient Positioning ; Patient Selection ; Retroperitoneal Space/surgery ; Robotics
Laparoscopic Adrenalectomy ; Adrenal Cortical Adenoma ; Surgical Robot System ; Maryland Dissector ; Posterior Retroperitoneoscopic Adrenalectomy
Posterior retroperitoneoscopic adrenalectomy (PRA) has several benefits compared with transperitoneal adrenalectomy in that it is safe and has a short learning curve. In addition, it provides direct short access to the target organ, prevents irritation to the intraperitoneal space, and does not require retraction of adjacent organs.1 (-) 3 We have performed several cases of robot-assisted PRA using single-port access for small adrenal tumors. This multimedia article introduces the detailed methods and preliminary results of this procedure.
Five patients underwent single-port robot-assisted PRA between March 2010 and June 2011 at our institution. During the procedure, patients were placed in a prone jackknife position with their hip joints bent at a right angle (Fig. 1). A 3 cm transverse skin incision was made just below the lowest tip of the 12th rib (Fig. 2), and the Glove port (Nelis, Kyung-gi, Korea) was placed through the skin incision while maintaining pneumoretroperitoneum (Fig. 3). CO2 was then insufflated to a pressure of 18 mm Hg to create an adequate working space. A 10 mm robotic camera with a 30-degree up view was placed at the center of the incision through the most cephalic portion of the Glove port. A Maryland dissector or Prograsp forceps (Intuitive Surgical, Inc., Sunnyvale, CA) was placed on the medial side of the incision, and Harmonic curved shears (Intuitive Surgical) were placed on the lateral side of the incision (Fig. 4). Using the Maryland dissector and the harmonic curved shears, the Gerota fascia is opened, perinephric fat is dissected, and the kidney upper pole is mobilized to expose the adrenal gland (Fig. 5). Gland dissection starts with lower margin detachment from the upper kidney pole in a lateral to medial direction (Fig. 6). After dissecting the adrenal gland from surrounding adipose tissue and medial isolation of the adrenal central vein, the vessel is ligated with a 5 mm hemolock clip (Fig. 7). Patient clinicopathologic data were analyzed retrospectively.
The mean patient age was 56.6 ± 8.7 (range, 47-69) years. Right and left side approaches were used in two and three patients, respectively. All cases were adrenal cortical adenoma. The mean tumor size was 1.48 ± 0.28 (range, 1.0-1.7) cm. The mean surgery duration (skin to skin) was 159.4 ± 57.6 (range, 103-245) minutes, and the mean estimated blood loss was 46.0 ± 56.8 (range, 5-120) ml. The average time to oral intake and postoperative hospital stay were 0.65 ± 0.11 (range, 0.54-0.79) days and 4.0 ± 2.23 (range, 3-8) days, respectively. There were no conversions to open surgery or postoperative compli- cations.
Some trials of minimally invasive single-access surgery of the adrenal gland have recently been performed.4 (,) 5 However, these new techniques have several limitations as a result of restrictions on instrumentation movement because of the small access ports used and relatively low-quality images produced. The recent introduction of the da Vinci S surgical robot system (Intuitive Surgical) to endoscopic surgery has improved instrumental dexterity and provided the surgeon with an ergonomically designed operating system. This system is also potentially safer and more meticulous in performing operations than endoscopic procedures as a result of a 3-D, magnified, stable operative view.6 (,) 7 The advantages of the da Vinci S surgical robot system and the numerous benefits of the posterior retroperitoneal approach motivated us to utilize single-port robot-assisted PRA. The primary selection criteria were small tumor size and a minimal amount of periadrenal fatty tissue because robot-assisted PRA using single-port access provides a small operative space, which causes manipulation problems when tumors are large. To ensure the safe application of these new techniques, we recommend that novice surgeons begin using single-port robot-assisted PRA for smaller tumors < 2 cm in patients with a body mass index of < 30 kg/m(2), gradually extending the size and body mass index as they accumulate experience. Although robot-assisted PRA using single-port access could not be compared with the other robotic adrenalectomy techniques in this study, the potential advantages of this approach compared to conventional robot-assisted transperitoneal adrenalectomy include a reduction in postoperative ileus, bacterial contamination, and intestinal complications because the peritoneal cavity is not opened, in addition to a reduction in postoperative pain because of its minimally invasive nature.
Our initial experiences with robot-assisted PRA using single-port access assured us of its safety and feasibility for the resection of small adrenal tumors. Although single-port robot-assisted PRA appears to be safe and feasible, further experience and research is required to optimize patient selection criteria and verify its advantages over the traditional three-incision PRA technique.
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1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Sang Wook(강상욱) ORCID logo https://orcid.org/0000-0001-5355-833X
Kim, Soo Young(김수영) ORCID logo https://orcid.org/0000-0002-8919-3456
Nam, Kee Hyun(남기현) ORCID logo https://orcid.org/0000-0002-6852-1190
Park, Seul Kee(박슬기) ORCID logo https://orcid.org/0000-0002-7639-1015
Park, Jae Hyun(박재현)
Park, Cheong Soo(박정수)
Lee, Cho Rok(이초록) ORCID logo https://orcid.org/0000-0001-7848-3709
Chung, Woong Youn(정웅윤)
Jeong, Jong Ju(정종주) ORCID logo https://orcid.org/0000-0002-4155-6035
Jeong, Jun Soo(정준수)
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