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https://www.readbyqxmd.com/read/28548527/liquid-droplets-act-as-compass-needles-for-the-stresses-in-a-deformable-membrane
#1
Rafael D Schulman, René Ledesma-Alonso, Thomas Salez, Elie Raphaël, Kari Dalnoki-Veress
We examine the shape of droplets atop deformable thin elastomeric films prepared with an anisotropic tension. As the droplets generate a deformation in the taut film through capillary forces, they assume a shape that is elongated along the high tension direction. By measuring the contact line profile, the tension in the membrane can be completely determined. Minimal theoretical arguments lead to predictions for the droplet shape and membrane deformation that are in excellent agreement with the data. On the whole, the results demonstrate that droplets can be used as probes to map out the stress field in a membrane...
May 12, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28421907/a-review-of-the-open-laparoscopic-hasson-technique-and-retrieval-of-adnexal-specimen-via-umbilicus
#2
L F A Wong, B Anglim, N A Wahab, N Gleeson
Laparoscopic entry techniques vary amongst surgeons and gynaecologists, with gynaecologists favouring Veress needle entry. Recent RCOG/BSGE recommendations have recommended retrieval of ovarian masses via the umbilical port with resultant less postoperative pain and a faster retrieval time than with retrieval through lateral ports of the same size. This is a prospective observational study reviewing the Hasson entry technique and the introduction of retrieval of specimens via the umbilicus in patients scheduled for a laparoscopy procedure at our day surgery unit...
May 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28383466/relative-device-stability-of-anterior-vs-axillary-needle-decompression-for-tension-pneumothorax-during-casualty-movement-preliminary-analysis-of-a-human-cadaver-model
#3
Matthew L Leatherman, Jenny M Held, Laura M Fluke, Christian S McEvoy, Kenji Inaba, Daniel Grabo, Matthew J Martin, Angela S Earley, Robert L Ricca, Travis M Polk
BACKGROUND: Tension pneumothorax (tPTX) remains a significant cause of potentially preventable death in military and civilian settings. The current pre-hospital standard of care for tPTX is immediate decompression with a 14 gauge 8cm angiocatheter (14G AC); however, failure rates may be as high as 17-60%. Alternative devices, such as 10G AC, modified Veress needle (mVN) and laparoscopic trocar (LT), have shown to be potentially more effective in animal models; however, little is known about the relative insertional safety or mechanical stability during casualty movement...
April 5, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28123465/transumbilical-endoscopic-technique-for-complete-closure-of-inguinal-hernias-in-female-pediatric-patients
#4
Xuewu Zhou, Xi Qi, Bing Jiang, Yongliang Sha, Daiqiang Song
Laparoscopic percutaneous extraperitoneal closure of inguinal hernia with variable devices as an effective technique in minimal-access surgery for pediatric inguinal hernias in children was investigated in the present study. A Veress needle was inserted into the abdomen. Trocars, laparoscope and needle holder were placed through the umbilical incision. Under laparoscopic monitoring, a round needle was introduced into the peritoneal cavity through the anterior abdominal wall. The end of the suture inside the peritoneal cavity was left outside the peritoneal cavity in favor of ligation...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28056561/survey-of-abdominal-access-and-associated-morbidity-for-robot-assisted-radical-prostatectomy-does-palmer-s-point-warrant-further-awareness-and-study
#5
William K Johnston, Susan Linsell, David Miller, Khurshid R Ghani
INTRODUCTION: Laparoscopic access for robot-assisted radical prostatectomy (RARP) is often initiated in the periumbilical location. Palmer's point, located in the left upper quadrant, has been reported as an alternative access site for pelvic laparoscopy to reduce morbidity, but not widely reported among urologists. To better understand surgeons' preferences for access and its associated morbidity during RARP, we surveyed surgeons from two urologic organizations. METHODS: An anonymous online questionnaire (SurveyMonkey) consisting of 17 questions that assessed training, experience, and preferences for RARP was emailed in December 2014 and collected until February 2015 to members performing RARP of the Endourology Society (ES) and the Michigan Urological Society Improvement Collaborative (MUSIC)...
March 2017: Journal of Endourology
https://www.readbyqxmd.com/read/27990648/total-laparoscopic-gastropexy-using-1-simple-continuous-barbed-suture-line-in-63-dogs
#6
MULTICENTER STUDY
Joel D Takacs, Ameet Singh, J Brad Case, Philipp D Mayhew, Michelle A Giuffrida, Ana V Caceres, W Alexander Fox-Alvarez, Jeffrey J Runge
OBJECTIVE: To describe the use and outcome of a single, simple continuous, barbed suture line for prophylactic, total laparoscopic gastropexy in dogs. STUDY DESIGN: Multi-center, retrospective case series. ANIMALS: Sixty-three client-owned dogs. METHODS: Medical records of dogs undergoing total laparoscopic gastropexy using a barbed suture at 4 academic veterinary hospitals from 2011-2015 were reviewed. Data collected included signalment, procedure time, procedure-associated complications, short-term complications, and long-term outcome...
February 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/27982261/the-effects-of-enoxaparin-on-the-liver-in-experimental-pneumoperitoneum-model
#7
Turgut Cavusoglu, Kemal Kismet, Namik Ozcan, Berkay Kucuk, Aziz Mutlu Barlas, Bahadir Osman Bozkirli, Pinar Celepli, Mehmet Senes, Serkan Bolat, Sema Hucumenoglu
PURPOSE: To investigate the potential protective effects of enoxaparin against the adverse events of carbon dioxide (CO2) pneumoperitoneum. METHODS: Thirty four rats were divided into three groups: Group 1 (sham) underwent insertion of Veress needle into the abdomen and 90 min of anesthesia with no gas insufflation. The animals in control and enoxaparin groups were subjected to 90 min of 14 mmHg CO2 pneumoperitoneum. Enoxaparin (100 u/kg) was administered subcutaneously to the rats in enoxaparin group one hour before the operation...
November 2016: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/27679072/caudal-displacement-of-the-umbilicus-a-novel-technique-for-a-safer-veress-needle-intraperitoneal-placement-vip-during-laparoscopic-entry
#8
H Abduljabar, A G Vilos, G A Vilos, B Abu Rafea, A Oraif
No abstract text is available yet for this article.
November 2015: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/27678570/randomized-comparison-of-veress-needle-intraperitoneal-placement-vip-at-caudaly-displaced-umbilicus-versus-left-upper-quadrant-luq-during-laparoscopic-entry
#9
A G Vilos, G A Vilos, B Abu Rafea, A Oraif, H Abduljabar
No abstract text is available yet for this article.
November 2015: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/27604364/what-is-the-value-of-the-sages-aorn-mis-checklist-a-multi-institutional-practical-assessment
#10
Emily Benham, William Richardson, Jonathan Dort, Henry Lin, A Michael Tummers, Travelyan M Walker, Dimitrios Stefanidis
BACKGROUND: Surgical safety checklists reduce perioperative complications and mortality. Given that minimally invasive surgery (MIS) is dependent on technology and vulnerable to equipment failure, SAGES and AORN partnered to create a MIS checklist to optimize case flow and minimize errors. The aim of this project was to evaluate the effectiveness of the SAGES/AORN checklist in preventing disruptions and determine its ease of use. METHODS: The checklist was implemented across four institutions and completed by the operating team...
September 7, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27513156/per-oral-endoscopic-myotomy-poem-after-the-learning-curve-durable-long-term-results-with-a-low-complication-rate
#11
Eric S Hungness, Joel M Sternbach, Ezra N Teitelbaum, Peter J Kahrilas, John E Pandolfino, Nathaniel J Soper
OBJECTIVE: We aimed to report long-term outcomes for patients undergoing per-oral endoscopic myotomy (POEM) after our initial 15-case learning curve. BACKGROUND: POEM has become an established, natural-orifice surgical approach for treating esophageal motility disorders. To date, published outcomes and comparative-effectiveness studies have included patients from the early POEM experience. METHODS: Consecutive patients undergoing POEM after our initial 15 cases, with a minimum of 1-year postoperative follow-up, were included...
September 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27393686/safe-and-easy-access-technique-for-the-first-trocar-in-laparoscopic-surgery
#12
Selman Uranues, Orhan Veli Ozkan, Gordana Tomasch
BACKGROUND: Access-related injuries are still an important consideration and may increase morbidity and mortality. This study aimed to present in detail a safe and easy technique for open insertion of the first trocar. PATIENTS AND METHODS: This technique has been used routinely in the vast majority of laparoscopic procedures at first author's department since 1998. The data were collected prospectively and analyzed retrospectively for the 11-year period of January 2005 through December 2015...
September 2016: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/27318636/-bowel-injuries-after-port-insertion-in-laparoscopy-gynerisq-s-database-analysis
#13
E Cesario, P Crochet, F-X Boyer de Latour, G Eglin, B De Rochambeau, A Agostini
INTRODUCTION: Port insertion is a high-risk period during laparoscopy. The French Gynecologist and Obstetricians College (CNGOF) published recommendations in 2010 to minimize those risks. The aim of our analysis was to establish the accidents' circumstances and consequences and to determine if those incidents could have been depending on whether recommendations had been respected or not. MATERIAL AND METHODS: Gynerisq is an approved organism by the Haute Autorité de santé (HAS)...
November 2016: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
https://www.readbyqxmd.com/read/27146054/trocar-injuries-in-laparoscopy-techniques-tools-and-means-for-prevention-a-systematic-review-of-the-literature
#14
REVIEW
Bram Cornette, Frederik Berrevoet
Trocar injuries are a possible cause for severe morbidity and mortality when performing laparoscopic surgery. This systematic review investigates the differences in the incidence of complications depending on the method of entry. A meta-analysis of the medical literature was performed. Search results were limited to clinical trials and the following languages: English, French, German, or Dutch. All results that compared the Veress, Hasson, and direct entry technique or compared sharp, blunt, and radially expanding trocars (RET) were included (n = 19)...
October 2016: World Journal of Surgery
https://www.readbyqxmd.com/read/26922517/laparoscopic-access-overview-is-there-a-safest-entry-method
#15
G Bianchi, E Martorana, A Ghaith, G M Pirola, M Rani, P Bove, F Porpiglia, F Manferrari, S Micali
BACKGROUND: Laparoscopy is a minimally invasive technique to access the abdominal cavity, for diagnostic or therapeutic applications. Optimizing the access technique is an important step for laparoscopic procedures. The aim of this study is to assess the outcomes of different laparoscopic access techniques and to identify the safest one. METHODS: Laparoscopic access questionnaire was forwarded via e-mail to the 60 centers who are partners in working group for laparoscopic and robotic surgery of the Italian Urological Society (SIU) and their American and European reference centers...
July 2016: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/26863295/hybrid-natural-orifice-translumenal-endoscopic-surgery-transvaginal-nephrectomy-in-a-low-resource-setting
#16
Paul Nimrod B Firaza, Enrique Ian S Lorenzo, Juan Godofredo R Bardelosa, Edgardo L Reyes, Nelson A Patron
INTRODUCTION: Hybrid natural orifice translumenal endoscopic surgery (NOTES(®); American Society for Gastrointestinal Endoscopy [Oak Brook, IL] and Society of American Gastrointestinal and Endoscopic Surgeons [Los Angeles, CA]) reduces the invasiveness of conventional laparoscopic surgery and overcomes the limitation of pure NOTES, especially in the absence of angulated instruments. PATIENTS AND METHODS: The patients were 66-, 69-, and 32-year-old women with complaints of recurrent flank pain and urinary tract infection due to an obstructed nonfunctioning kidney...
February 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/26846402/evaluation-of-a-veress-needle-for-the-fluid-egress-system-of-stifle-arthroscopy-in-toy-dog-breeds
#17
Jae-Gwan Cha, Hae Beom Lee, Hye-Yeon Cheong, Su-Young Heo, Guillaume R Ragetly
OBJECTIVES: The aim of this study was to evaluate the use of a Veress needle as a fluid egress system for stifle arthroscopy in toy dog breeds. METHODS: Cadaveric canine stifle joints (n = 32) were prepared to induce an artificial intra-articular haemorrhagic effect, followed by stifle arthroscopy. The stifles were randomly assigned to one of three groups, and a fluid egress portal was established using a Veress needle (VN), a standard egress cannula (SE), or an intravenous catheter stylet (CS)...
2016: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/26839110/trocar-injuries-in-17-446-laparoscopic-gastric-bypass-a-nationwide-survey-from-the-scandinavian-obesity-surgery-registry
#18
Magnus Sundbom, Johan Ottosson
BACKGROUND: Although, the vast majority of bariatric procedures worldwide are performed laparoscopically, there is no consensus on the best technique to enter the first trocar, a potentially dangerous maneuver. Three principally different techniques exist: initial pneumoperitoneum by Verres needle, open Hasson technique, and direct placement of an optical trocar. In this nationwide survey, we have studied the presently used technique to place the first trocar and identified any intraabdominal injuries in 2012-2014...
September 2016: Obesity Surgery
https://www.readbyqxmd.com/read/26587233/unnoticed-biloma-due-to-liver-puncture-after-veress-needle-insertion
#19
Juan José Segura-Sampedro, Jesús Cañete-Gómez, Julio Reguera-Rosal, Francisco Javier Padillo-Ruiz, César Pablo Ramírez-Plaza
Laparoscopic surgery has become more widespread in the last years. Creating the pneumoperitoneum is the first surgical procedure but it is still responsible for many of the adverse events described in this field. Until now, liver puncture producing a delayed biloma has not been described. We present a case where a biloma was developed after liver puncture by the Veress needle, during a laparoscopic procedure, and detected on the 3rd day. It was detected by CT scan and treated by laparoscopy. Biloma due to Veress needle is a new entity in the context of adverse events related to Veress needle insertion, which needs a high suspicious index...
September 2015: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/26411193/-open-laparoscopy-advantages-and-disadvantages
#20
S Kovachev
The debate about the safety of penetrating technique in laparoscopy, persist for more than four decades and still does not approach the scientifically valid decision about what method to use: closed with a Veress needle laparoscopic surgery; open laparoscopy; direct placement of troakar without prior to insufflation, visual entry methods. We're meant to look at the advantages and disadvantages of the laparoscopic approach, which we use in the Clinic of Gynaecology of the Military Medical Academy, Sofia, Bulgaria, having conducted a search in the literature and Medline from the year in which it was introduced (1971) to present...
2015: Akusherstvo i Ginekologii︠a︡
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