Comparison of Laparoscopic versus Open Liver Resection: A Case-Controlled Study
Background: Although there is data in the literature about the safety and efficacy of laparoscopic liver resections, there are not many studies comparing laparoscopic versus open approaches in a case-matched design. The purpose of this study is to compare the perioperative outcome of laparoscopic versus open liver resections from a single institution.Methods: Twenty-two patients underwent… Continue Reading
Laparoscopic Versus Open Left Lateral Liver Sectionectomy: A Comparative Study
Background: Although the feasibility of laparoscopic liver resections has been demonstrated, a very few studies comparing the laparoscopic approach to open surgery have been published. The left lateral sectionectomy (resection of segments II and III) was the first formal liver resection performed by laparoscopy. We developed a laparoscopic procedure very similar to open surgery, with… Continue Reading
The efficacy of laparoscopic radiofrequency ablation (Lap- RFA) for small hepatocellular carcinomas
PURPOSE: To assess the effectiveness of laparoscopic radio frequency ablation therapy (Lap-RFA) for small hepatocellular carcinomas (HCCs) located beneath the diaphragm or on the surface of the liver. MATERIALS AND METHODS: Lap-RFA indication was as follows; smaller than 3cm in a diameter and less than three in the number, no vascular invasion, general condition available… Continue Reading
Injury to the accessory duct of Luschka requiring emergent laprotomy. A rare complication following laparoscopic cholecystectomy.
Introduction: Laparoscopic cholecystectomy (LC) has become the mainstay for treatment of gallbladder disease. Although biliary injuries are well described in LC, these are mainly associated with common bile duct injuries. There are scant reports related to complications involving the accessory ducts of Luschka (ADL). Case presentations: We present three patients that presented with persistent abdominal… Continue Reading
Noninvasive Method of Acute Pancreatitis Treatment Using Roentgenendovascular Procedure
Acute pancreatitis (AP) is one of the important problem of the urgent surgery, often registrated in surgical patients. The today’s situation occurs in treatment of patients with AP seemes to be far from satisfactory. One of the main problem of the contemporary surgery is to perform out the new ways of how to treat AP… Continue Reading
Porcine ex-vivo and in-vivo Vessel Sealing Experiments to compare LOTUS® and Ethicon® Ultrasonic Instruments with LigaSure® bipolar vessel sealing device
Introduction: To observe and compare the vessel-sealing ability of LOTUS and Ethicon ultrasonic shears with LigaSure bipolar device using a porcine model.Methods and Procedures:1. Porcine renal vessels of varying diameter were harvested from recently slaughtered animals and sealed/divided by one of the 3 devices.2. A midline laparotomy was performed on 2 anaesthetised pigs. Mesenteric, renal,… Continue Reading
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Ergonomic Risk of Assisting in Minimally Invasive Surgery
Introduction: Ergonomic knowledge related to primary MIS surgeons has been well described. Similar studies making the camera assistant subject have not been undertaken. By simulating the assistant¡¯s role as a camera holder and retractor during a Nissen fundoplication, this study investigated how camera target locations and grip strategies, and fatigue affected the assistant¡¯s posture.Methods and… Continue Reading
CyberDome, novel 3-dimension hemispherical display system, improves procedures of laparoscopic surgery
(Background) Despite of current advances with technology associated with laparoscopic surgery, laparoscopic surgeons still need a long experience to overcome the lack of depth perception on a 2-dimensional (2D) display. Although it was reported over two decades that 3-dimensional (3D) imaging provided depth perception and might improve laparoscopic procedures, 3D systems have not been widely… Continue Reading
Preliminary experience in use of the new, multifunctional Ligasure AdvanceTM device for tissue dissection, hemostasis, and vascular division
Objective: The aim of this study was to investigate efficacy, safety, and ergonomic design of handle of the recently introduced multifunctional device (LigaSure AdvanceTM) that has sealing, dissection and division functions on live animals.Materials and methods: Eight domestic pigs were included in the study designed to assess functionality, thermal spread and ergonomic evaluation of the… Continue Reading
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Subsurface Tissue Magnetisation for Mucosal Dissection
Objective: To provide a means of magnetically manipulating mucosal tissue to overcome some of the problems inherent in existing grasping instruments; to overcome the problems of our previously-reported glued medium approach and to simultaneously provide means of inducing hyperthermia in the target tissue.Method: Media consisting of stainless steel SS410 microparticles (average size 20 microns) suspended… Continue Reading
Working with a pre-operative checklist in laparoscopic surgery, an initial study
Abstract Background: Major changes in endoscopic surgery have taken place in recent years. More and more, technical applications and complicated devices are introduced in the operation room. In previous studies, various preventable equipment related problems are reported. Potentially, this can influence the quality and safety of laparoscopic surgery. The goal of study is to find… Continue Reading
‘real-time\’ Measurement of Tissue Oxygenation During Gastrointestinal Stapling: Mucosal But Not Serosal Surface Ischemia Occurs and Is Not Influenced By Staple Size
Tension, tissue ischemia and technical error are known factors which can lead to anastomotic complications such as leak, stricture, and ulceration/bleeding. Currently surgeons evaluate tissue ischemia without benefit of any simple routine measurement technique to assess tissue viability. A new tissue surface probe (T-STAT microvascular tissue oximeter, Spectros Corporation, Portola Valley, California) provides continuous measurement… Continue Reading
Using a Dynamic Training Environment to Assess Laparoscopic Skill
Current physical laparoscopic surgical simulators contain only static tasks, which do not develop the advanced hand-eye coordination skills needed to navigate the dynamic surgical environment. A dynamic minimally invasive training environment (DynaMITE) was developed to fill this need. Preliminary testing showed a potential for the device to improve the hand-eye coordination skills of even expert… Continue Reading
A new flexible endoscopic suturing method with laparoscopic protection for safer full-thickness attachment to the gastro-intestinal tract
Background: There are some difficulties associated with placing multiple stitches or tissue anchors at flexible endoscopy in order to achieve long term attachment of devices within the gastrointestinal tract. Precision stitching of an object to the wall of the gut requires accurate penetration of the device attachment points, and knowledge that the anchor has been… Continue Reading
Does an Infrared Laparoscope bring better visual field under the bleeding situation?
Back ground: The bleeding during the laparoscopic surgery adds much stress to the surgeons. Our experiences of near-infrared (NR) laparoscope that used for sentinel lymphnodes detection inspired the possibility of better visualization under the bleeding situation. Therefore, we examined the visibility of NR scope on an experimental basis.Materials and Methods: NR scope (805}15nm: Olympus Corp.)… Continue Reading
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