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Surgical Innovation

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https://www.readbyqxmd.com/read/28193132/finding-optimal-ablation-parameters-for-multipolar-radiofrequency-ablation
#1
Franz G M Poch, Christian Rieder, Hanne Ballhausen, Verena Knappe, Jörg Peter Ritz, Ole Gemeinhardt, Martin E Kreis, Kai S Lehmann
PURPOSE: Radiofrequency ablation (RFA) for primary liver tumors and liver metastases is restricted by a limited ablation size. Multipolar RFA is a technical advancement of RFA, which is able to achieve larger ablations. The aim of this ex vivo study was to determine optimal ablation parameters for multipolar RFA depending on applicator distance and energy input. METHODS: RFA was carried out ex vivo in porcine livers with three internally cooled, bipolar applicators in multipolar ablation mode...
February 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28193123/ventriculoportal-shunt-a-new-transomphalic-extraperitoneal-surgical-technique-in-treatment-of-hydrocephalus
#2
Valentin Titus Grigorean, Aurelia Mihaela Sandu, Mihai Popescu, Victor Strambu
AIM: The aim of this article was to report a new transomphalic extraperitoneal surgical technique for treatment of hydrocephalus, called ventriculoportal shunt. MATERIALS AND METHODS: We performed ventriculoportal shunt on an experimental animal (pig). The particularity of ventriculoportal shunt consists in the fact that the distal end of the catheter is inserted transomphalic extraperitoneally in the portal system through reopened umbilical vein. We present technical details regarding this new surgical technique...
February 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28190372/training-performance-of-laparoscopic-surgery-in-two-and-three-dimensional-displays
#3
Chiuhsiang Joe Lin, Chih-Feng Cheng, Hung-Jen Chen, Kuan-Ying Wu
INTRODUCTION: This research investigated differences in the effects of a state-of-art stereoscopic 3-dimensional (3D) display and a traditional 2-dimensional (2D) display in simulated laparoscopic surgery over a longer duration than in previous publications and studied the learning effects of the 2 display systems on novices. METHODS: A randomized experiment with 2 factors, image dimensions and image sequence, was conducted to investigate differences in the mean movement time, the mean error frequency, NASA-TLX cognitive workload, and visual fatigue in pegboard and circle-tracing tasks...
February 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28190369/intra-abdominal-trocar-free-vacuum-liver-retractor-for-upper-gastrointestinal-surgery
#4
Christian Benzing, Helmut Weiss, Felix Krenzien, Matthias Biebl, Johann Pratschke, Ricardo Zorron
BACKGROUND: In laparoscopic upper-gastrointestinal (GI) surgery, an adequate retraction of the liver is crucial. Especially in single-port surgery and obese patients, problems may occur during liver retraction. The current study seeks to evaluate the efficacy and safety of the LiVac trocar-free liver retractor in laparoscopic upper-GI surgery. METHODS: The present study is a nonrandomized dual-center clinical series describing our preliminary results using the LiVac system for liver retraction...
February 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28152672/intraoperative-localization-of-rectal-tumors-using-liposomal-indocyanine-green
#5
Shlomo Magdassi, Shoshi Bar-David, Yael Friedman-Levi, Ehud Zigmond, Chen Varol, Guy Lahat, Joseph Klausner, Sara Eyal, Eran Nizri
BACKGROUND: Tumor localization may pose a significant challenge during minimally invasive rectal resection. Near-infrared (NIR) imaging can penetrate biological tissue and afford tumor localization from the external surface of the rectum. Our aim was to develop an NIR-based tool for rectal tumor imaging that can be administered intravenously. METHODS: We prepared indocyanine-green (ICG)-loaded liposomes by sonication. Liposomes were evaluated for their size and morphology...
February 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28178883/radiofrequency-based-identification-medical-device
#6
Alessandra Lazzaro, Arianna Corona, Luca Iezzi, Silvia Quaresima, Luca Armisi, Ilaria Piccolo, Carlo Maria Medaglia, Sergio Sbrenni, Pierpaolo Sileri, Nicola Rosato, Achille Lucio Gaspari, Nicola Di Lorenzo
BACKGROUND: A retained surgical item in patients (gossypiboma) is a persisting problem, despite consistent improvements and existing guidelines in counting instruments and sponges. Previous experiences with radiofrequency identification technology (RFID) tracking sponges show that it could represent an innovation, in order to reduce the criticism and increase the effectiveness during surgical procedures. We present an automated system that allows reduction of errors and improves safety in the operating room...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28178882/fluorescent-imaging-with-indocyanine-green-during-laparoscopic-cholecystectomy-in-patients-at-increased-risk-of-bile-duct-injury
#7
Marjolein Ankersmit, Dieuwertje A van Dam, Anne-Sophie van Rijswijk, Baukje van den Heuvel, Jurriaan B Tuynman, Wilhelmus J H J Meijerink
BACKGROUND: Although rare, injury to the common bile duct (CBD) during laparoscopic cholecystectomy (LC) can be reduced by better intraoperative visualization of the cystic duct (CD) and CBD. The aim of this study was to establish the efficacy of early visualization of the CD and the added value of CBD identification, using near-infrared (NIR) light and the fluorescent agent indocyanine green (ICG), in patients at increased risk of bile duct injury. MATERIALS AND METHODS: Patients diagnosed with complicated cholecystitis and scheduled for LC were included...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28178875/liver-hemostasis-by-using-cold-plasma
#8
Alexander Aleinik, Alexander Baikov, Georgiy Dambaev, Evgeniy Semichev, Pavel Bushlanov
Surgical resection is associated with blood loss and bacterial infections. The aim of this study was to evaluate the effectiveness of cold plasma treatment during liver resection. Thirty adult male Wistar rats were divided randomly into 2 groups. Group I was the control group-intact animals (5 in total). The second group (25 in total)-experimental animals-had atypical resection of the left lobe of the liver with subsequent coagulation by "nonequilibrium" plasma. Histological tissue samples, biochemical blood indices, and hemocoagulation parameters were investigated on 3, 5, 7, 14, and 30 days after plasma treatment...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28178872/validation-study-of-a-portable-home-trainer-using-a-pad-for-laparoscopic-practice
#9
Zaki Sleiman, Elie Atallah, Elie Rassi, Riad Sarkis, Aline Khazzaka
The aim of this study was to describe and validate a homemade laparoscopic trainer. The abdominal cavity is simulated within a 3-mm-thick stainless steel model. Thirty-four participants were evaluated in a pilot study to validate our model. Participants were divided into experts (n = 19) and novices (n = 15) to perform basic and complex laparoscopic skills. The comparison between the homemade trainer (HT) and the standard laparoscopic trainer showed no significant differences for the 2 tasks performed for each group ( P > ...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28178871/force-comparison-of-commercially-available-transfascial-suture-passers
#10
Alexander J Shope, Joshua S Winder, Jonathan T Bliggenstorfer, Kristen T Crowell, Randy S Haluck, Eric M Pauli
BACKGROUND: Transfascial suture passers (TSPs) are a commonly used surgical tool available in a wide array of tip configurations. We assessed the insertion force of various TSPs in an ex vivo porcine model. METHODS: Uniform sections of porcine abdominal wall were secured to a 3D-printed platform. Nine TSPs were passed through the abdominal wall both without and with prolene suture under the following scenarios: abdominal wall only and abdominal wall plus underlay ePTFE or composite ePTFE/polypropylene mesh...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28164743/construction-of-a-3d-complex-renal-stone-print-and-kidney-print-for-comprehensive-surgical-planning-and-patient-information
#11
Matej Knezevic, Ivana Paksi, Boris Ruzic, Tomislav Galeta
No abstract text is available yet for this article.
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28164741/single-incision-laparoscopic-inguinal-hernioplasty-versus-conventional-laparoscopic-inguinal-hernioplasty
#12
Shanshan Luo, Shike Wu, Hao Lai, Xianwei Mo, Jiansi Chen
PURPOSE: Additional studies comparing single-incision laparoscopic inguinal hernioplasty (SILH) and conventional laparoscopic inguinal hernioplasty (CLH) have been published, and this study updates the meta-analysis of this subject. METHODS: Two reviewers independently searched the PubMed, Embase, Google Scholar, and Cochrane Library electronic databases to locate original articles that compared SILH and CLH for inguinal hernia that were published until October 2015...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28142398/critical-appraisal
#13
Abe Fingerhut, François Lacaine
No abstract text is available yet for this article.
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28142325/continuous-intraoperative-neuromonitoring-study-using-pigs-for-the-prevention-of-mechanical-recurrent-laryngeal-nerve-injury-in-esophageal-surgery
#14
Tomoaki Deguchi, Yoshifumi Ikeda, Masanori Niimi, Ryoji Fukushima, Masaki Kitajima
PURPOSES: During esophageal surgery, clamping injury and injury associated with the use of energy devices are common mechanisms underlying intraoperative recurrent laryngeal nerve (RLN) damage. Recently, intraoperative neuromonitoring (IONM) has been applied to prevent RLN injury. This study was aimed at investigating the changes in the EMG signals associated with clamping injury of the RLN caused by picking up of the nerve with tweezers in domestic pigs. METHODS: Six domestic pigs (12 RLNs) underwent continuous IONM (CIONM) by our original automated periodic vagal nerve stimulation method...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28134003/development-of-a-patient-specific-3d-printed-liver-model-for-preoperative-planning
#15
Marta J Madurska, Matthieu Poyade, David Eason, Paul Rea, Angus J M Watson
INTRODUCTION: Liver surgery is widely used as a treatment modality for various liver pathologies. Despite significant improvement in clinical care, operative strategies, and technology over the past few decades, liver surgery is still risky, and optimal preoperative planning and anatomical assessment are necessary to minimize risks of serious complications. 3D printing technology is rapidly expanding, and whilst appliactions in medicine are growing, but its applications in liver surgery are still limited...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28132584/evaluation-of-trends-in-the-use-of-interstim-for-fecal-incontinence
#16
Jonathan S Abelson, Joshua D Spiegel, Heather L Yeo, Jialin Mao, Tianyi Sun, Art Sedrakyan, Jeffrey W Milsom, Kelly A Garrett
BACKGROUND: Fecal incontinence (FI) represents a large source of morbidity and is a challenging clinical problem to manage. InterStim was approved to treat FI in 2011. Little is known about its adoption. We sought to characterize patterns of use of Interstim since Food and Drug Administration approval for FI. METHODS: The New York State SPARCS database was used to evaluate InterStim use for FI from 2011 to 2014. The primary endpoint was the number of successful implantations of InterStim...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28128014/effect-of-obesity-on-perioperative-outcomes-after-robotic-assisted-pulmonary-lobectomy
#17
Bryce Montané, Kavian Toosi, Frank O Velez-Cubian, Maria F Echavarria, Matthew R Thau, Raj A Patel, Kathryn Rodriguez, Carla C Moodie, Joseph R Garrett, Jacques P Fontaine, Eric M Toloza
OBJECTIVE: We investigated whether higher body mass index (BMI) affects perioperative and postoperative outcomes after robotic-assisted video-thoracoscopic pulmonary lobectomy. METHODS: We retrospectively studied all patients who underwent robotic-assisted pulmonary lobectomy by one surgeon between September 2010 and January 2015. Patients were grouped according to the World Health Organization's definition of obesity, with "obese" being defined as BMI >30.0 kg/m(2)...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28118788/3d-vision-provides-shorter-operative-time-and-more-accurate-intraoperative-surgical-performance-in-laparoscopic-hiatal-hernia-repair-compared-with-2d-vision
#18
Piera Leon, Roberta Rivellini, Fabiola Giudici, Antonio Sciuto, Felice Pirozzi, Francesco Corcione
BACKGROUND: The aim of this study is to evaluate if 3-dimensional high-definition (3D) vision in laparoscopy can prompt advantages over conventional 2D high-definition vision in hiatal hernia (HH) repair. STUDY DESIGN: Between September 2012 and September 2015, we randomized 36 patients affected by symptomatic HH to undergo surgery; 17 patients underwent 2D laparoscopic HH repair, whereas 19 patients underwent the same operation in 3D vision. RESULTS: No conversion to open surgery occurred...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28118787/learning-curve-associated-with-an-automated-laparoscopic-suturing-device-compared-with-laparoscopic-suturing
#19
Steven G Leeds, Lizzy Wooley, Ganesh Sankaranarayanan, Yahya Daoud, James Fleshman, Sanket Chauhan
BACKGROUND: Laparoscopic suturing has proved to be a challenging skill to master which may prevent surgical procedures from being started, or completed, in a minimally invasive fashion. The aim of this study is to compare the learning curves between traditional laparoscopic techniques with a novel suturing device. METHODS: In this prospective single blinded nonrandomized controlled crossover study, we recruited 19 general surgery residents ranging from beginner (PGY1-2, n = 12) to advanced beginner (PGY3-5, n = 7)...
January 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28068887/the-use-of-smart-glasses-for-surgical-video-streaming
#20
Takafumi Hiranaka, Yuta Nakanishi, Takaaki Fujishiro, Yuichi Hida, Masanori Tsubosaka, Yosaku Shibata, Kenjiro Okimura, Harunobu Uemoto
Observation of surgical procedures performed by experts is extremely important for acquisition and improvement of surgical skills. Smart glasses are small computers, which comprise a head-mounted monitor and video camera, and can be connected to the internet. They can be used for remote observation of surgeries by video streaming. Although Google Glass is the most commonly used smart glasses for medical purposes, it is still unavailable commercially and has some limitations. This article reports the use of a different type of smart glasses, InfoLinker, for surgical video streaming...
January 1, 2017: Surgical Innovation
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