Maneuverability of the Scope and Instruments within Three Different Single-Incision Laparoscopic Ports: An Experimental Pilot Study

Single-port access systems (SPASs) are currently used in human and veterinary surgeries. However, they pose technical challenges, such as instrument crowding, intra- and extracorporeal instrument collision, and reduced maneuverability. Studies comparing the maneuverability of the scopes and instruments in different SPASs are lacking. This study aimed to compare the maneuverability of three different SPASs: the Covidien SILS-port, Storz Endocone, and glove port. A clear acrylic box with artificial skin placed at the bottom was used to mimic the abdominal wall and cavity. The three SPASs were placed from below, and a 10-mm endoscope and 5-mm instrument were introduced. A motion analysis system consisting of 18 cameras and motion analysis software were used to track the movement of the endoscope and instrument, to determine the volume of the cone-shaped, three-dimensional figures over which movement was possible, with higher values indicating greater maneuverability. The Mann–Whitney U test was used for the analysis. The maneuverability of the endoscope alone was significantly higher in the glove port system than in the other two SPASs. When inserting an additional instrument, the maneuverability significantly decreased in the SILS-port and Endocone, but not in the glove port. The highest maneuverability overall was found in the glove port.

Transanal access port (TrAAP) technique: the use of a single incision laparoscopic surgical port during canine colonoscopy (a cadaveric study)

Background Transanal colonoscopy using the single-incision laparoscopic surgical port is routinely used in human patients but has not been described in veterinary literature. The purpose of this study was to describe a novel access technique elucidating its endoscopic clinical potential and benefits. Additionally, its challenges, limitations, and clinical usability will be discussed and critiqued. The aim of this study was to describe the feasibility of the single-incision laparoscopic surgical port (SILS) as a transanal access technique in canine cadavers and compare its technical capabilities and economic value when compared to the traditional approaches of digital pressure and purse string. Results The overall time to reach an intraluminal pressure of 10 mmHg was faster for digital pressure versus purse string (p = 0.05) and faster for single-incision laparoscopic surgical port versus purse string (p < 0.02). Maximum luminal pressure was significantly higher between single-incision laparoscopic surgical port and purse string (p = 0.001). Mean pressure for both the complete 60 s trial and during the last 45 s of insufflation were highest with the SILS port and were significantly different between the single-incision laparoscopic surgical port versus purse string (p = 0.0001, p < 0.0001) and digital pressure versus purse string (p < 0.005, p < 0.01) respectively. Complete luminal distention and visualization was observed in all trials. Conclusions The SILS port in a cadaveric canine model allowed good visualization of the rectal and colonic mucosa, provided constant insufflation of the colon and was feasible and subjectively easy to perform. Technical differences between techniques were observed with the use of the SILS port allowing for potentially lower personnel requirements, less procedural associated cost, less variability versus the digital pressure technique between assistants, and the ability of additional instruments to be used for procedures.

An evaluation of trans-anal rectoscopic-assisted minimally invasive surgery (ARAMIS): a new platform for transanal surgery

Purpose The study aimed to evaluate the feasibility and safety of a new trans-anal rectoscopic-assisted minimally invasive surgery (ARAMIS) platform to treat rectal lesions. Methods ARAMIS was first compared with two transanal minimally invasive surgery platforms (SILS Port and GelPOINT Path) on human cadavers. Surgeons with different experience performed running sutures at different distances, at four quadrants, using the three platforms and gave a score to visibility, safety, and maneuverability. ARAMIS was then utilized on patients affected with rectal neoplasia who met the inclusion criteria. Patients and tumor characteristic and results were prospectively collected. The follow-up examinations included proctoscopy at 3, 6, and 12 months. Results According to surgeons’ scores, ARAMIS improves visibility and safety with respect to other platforms for distances beyond 10 cm. The procedure, which lasted an average of 59 min, was successfully carried out in 14 patients. No intraoperative or postoperative complications were reported. The mean tumor size was 3 cm; they were located a mean of 11 cm from the anal verge. Complete removal of the lesion was possible in 13/14 patients. There was one case of adenoma recurrence at follow-up. Conclusion Study results showed that ARAMIS, which is equipped with an adjustable rectoscope, can be considered a safe, effective platform for transanal surgery. The rectoscope protects the rectum during the procedure, a particularly important consideration when proximal rectal lesions are being treated. Further clinical studies are warranted to confirm these encouraging results.

RETROPERITONEALS SINGLE INCISION LAPAROSCOPIC NEPHRECTOMY: MINI-INVASIVE TECHNICAL, SAFETY AND COSMETIC

Objective: Outcome of 45 retroperitoneal single incision laparoscopic nephrectomy of benigns nonfunction kidneys at Hue Central Hospital. Patients and method: A prospective study was perform on 45 patients with benign nonfuncion kidney, treated by retroperitoneal single incision laparoscopic nephrectomy at Department of General Surgery - Hue Central Hospital from May 2015 to August 2018. Results: Success: 42/45 patients. Mean operating time 87.5mins (50 - 155 mins), postoperative hospital stay 5-7 days. SILS Port of Covidien was inserted by 2.5 cm skin transverse incision, standard straight laparoscopic instruments were used instead of roticular instruments. Conclusion: This is a mini-invasive technical, safety and cosmetic Keywords: retroperitoneal single incision laparoscopic nephrectomy, single port nephrectomy.

EARLY RESULTS OF SINGLE-PORT LAPAROSCOPIC APPENDECTOMY

Background: Conventional three–port laparoscopic appendectomy is becoming popular for the treatment of acute appendicitis. In this report, we present the early results of a new technique of laparoscopic appendectomy conducted through a single-port. Patients and Methods: From March 2011 to October 2013, we have performed 86 operations Single Port Laparoscopic Appendectomy at Hue University Hospital and Hue Central Hospital. SILS Port (Covidien) is used, it can be performed with basic laparoscopic instruments. Results: In this study, 86 patients underwent Single-Port laparoscopic appendectomy, among them 52.33% were femele, 47.67% were male, female/male ratio was 1.09. The mean age was 33.09. An orther trocar insertion was required in 2 patients (2.33%). The mean operation time was 42.03 minutes and mean postoperative hospital stay 3.37 days. Postoperative complication occurred in 2 case (2.33%) was of omphalitis. During 2 weeks follow up, 2 case (2.33%) was of omphalitis. Conclusions: Single - port intracorporeal appendectomy is a safe, minimal invasive procedure with excellent cosmetic results. Key words: Single Port Laparoscopic Appendectomy, appendectomy