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Vessel sealing

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https://www.readbyqxmd.com/read/28526110/pulmonary-artery-sealing-with-ultrasonic-energy-in-open-lobectomy-a-phase-i-clinical-trial
#1
Eric Goudie, Vicky Thiffault, Adeline Jouquan, Edwin Lafontaine, Pasquale Ferraro, Moishe Liberman
OBJECTIVE: Pulmonary artery branch sealing in video-assisted thoracoscopic surgical lobectomy is usually achieved with vascular endostaplers. Iatrogenic pulmonary artery injury may be caused by endostaplers. We evaluated the safety of pulmonary artery sealing with an ultrasonic energy vessel-sealing device in a phase I clinical trial evaluating in vivo safety of the device during open lobectomy. METHODS: Patients scheduled to undergo elective open (thoracotomy) pulmonary lobectomy were prospectively enrolled...
June 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28516101/early-spontaneous-resolution-of-an-iatrogenic-acute-type-a-aortic-dissection
#2
Mohammad A Zafar, Philip Y K Pang, Glen A Henry, Bulat A Ziganshin, Maryann Tranquilli, John A Elefteriades
Acute aortic dissection is a rare but devastating complication during cardiac catheterization. We present the case of an elderly female who incurred a Stanford Type A/DeBakey Type I acute aortic dissection extending into the arch vessels and descending aorta likely occurring during right coronary artery engagement for angioplasty. The patient was treated successfully by immediately sealing the entrance of the dissection via the placement of a stent and anti-impulse therapy. Follow-up computed tomography scan showed complete resolution of the dissection within one month...
December 2016: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/28509693/microcirculatory-effects-of-botulinum-toxin-a-in-the-rat-acute-and-chronic-vasodilation
#3
Roberto Giorgio Aru, Somjade Jay Songcharoen, Samantha R Seals, Peter B Arnold, Robert L Hester
BACKGROUND: Botulinum toxin-A (BTX) has numerous cosmetic and therapeutic applications. Our previous studies have found that BTX augments pedicled flap survival through both vasodilatory effects and attenuation of the inflammatory response to ischemia in the rat. This study examines the effect of chronic BTX on microcirculatory vascular tone and its response to acute topical vasodilators in muscle flaps. METHODS: The spinotrapezius muscle of Sprague-Dawley rats underwent a single 2-week pretreatment of 0...
May 15, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28503009/performance-of-metal-and-polymeric-o-ring-seals-during-beyond-design-basis-thermal-conditions
#4
Jiann C Yang, Edward Hnetkovsky, Doris Rinehart, Marco Fernandez, Felix Gonzalez, Joseph Borowsky
This paper summarizes the small scale thermal exposure test results of the performance of metallic and polymeric O-ring seals typically used in radioactive material transportation packages. Five different O-ring materials were evaluated: Inconel/silver, ethylene-propylene diene monomer (EPDM), polytetrafluoroethylene (PTFE), silicone, butyl, and Viton. The overall objective of this study is to provide test data and insights to the performance of these Oring seals when exposed to beyond-design-basis temperature conditions due to a severe fire...
April 2017: Polymer Testing
https://www.readbyqxmd.com/read/28486741/-implementation-of-a-vessel-sealing-device-in-a-centre-for-thyroid-surgery-risk-and-economic-profit
#5
Stephan Coerper, Wolfgang Stengl
Background This study investigated whether the use of the vessel sealing device LigaSure Small Jaw(™) is cost-effective and safe in thyroid surgery despite the high cost of material. Patients and Methods We analysed the results of 224 thyroid operations performed by the same surgeon in three time intervals. We included thyroidectomies and bilateral near-total resections (including Dunhill surgery). Minimally-invasive resections (MIVAT), unilateral resections or subtotal resections (remains > 2 ml), patients with recurrent goiter, operations with neck dissections and sternotomies were excluded...
May 9, 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/28484150/less-invasive-approach-to-pancoast-tumor-in-a-partitioned-incision
#6
Norikazu Kawai, Takeshi Kawaguchi, Motoaki Yasukawa, Takashi Watanabe, Takashi Tojo
We describe our approach to resect a Pancoast tumor with thoracoscopic assistance in a partitioned incision. We used the LigaSure vessel-sealing system under thoracoscopy in chest wall resection for Pancoast tumor. This approach is of great utility: easy-to use and less invasive for Pancoast tumor resection.
May 9, 2017: Annals of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28474219/impact-of-radiofrequency-energy-on-intraoperative-outcomes-of-laparoscopic-colectomy-for-cancer-in-obese-patients
#7
Diletta Cassini, Michelangelo Miccini, Matteo Gregori, Farshad Manoochehri, Gianandrea Baldazzi
Nowadays laparoscopic approach is accepted as a valid alternative to open surgery for the treatment of colorectal cancer. Several studies consider this approach to be safe and feasible also in obese patients, even if dissection in these patients may require a longer operative time and involve higher blood loss. To facilitate laparoscopic approach, more difficult in these patients, several energy sources for laparoscopic dissection and sealing, has been adopted recently. The aim of this study is to investigate the possible intraoperative advantages of radiofrequency energy in terms of blood loss and operative time in obese patients undergoing laparoscopic resection for cancer...
May 4, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28457379/electrospun-phea-pla-pcl-scaffold-for-vascular-regeneration-a-preliminary-in%C3%A2-vivo-evaluation
#8
S Buscemi, V D Palumbo, A Maffongelli, S Fazzotta, F S Palumbo, M Licciardi, C Fiorica, R Puleio, G Cassata, L Fiorello, G Buscemi, A I Lo Monte
BACKGROUND: There is increasing interest in the development of vessel substitutes, and many studies are currently focusing on the development of biodegradable scaffolds capable of fostering vascular regeneration. We tested a new biocompatible and biodegradable material with mechanical properties similar to those of blood vessels. METHODS: The material used comprises a mixture of α,β-poly(N-2-hydroxyethyl)-d,l-aspartamide (PHEA) and polylactic acid (PLA), combined with polycaprolactone (PCL) by means of electrospinning technique...
May 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28440043/self-sealed-bionic-long-microchannels-with-thin-wall-and-designable-nanoholes-prepared-by-line-contact-capillary-force-assembly
#9
Zhao-Xin Lao, Yan-Lei Hu, Deng Pan, Ren-Yan Wang, Chen-Chu Zhang, Jin-Cheng Ni, Bing Xu, Jia-Wen Li, Dong Wu, Jia-Ru Chu
Long microchannels with thin walls, small width, and nanoholes or irregular shaped microgaps, which are similar to capillaries or cancerous vessels, are urgently needed to simulate the physiological activities in human body. However, the fabrication of such channels remains challenging. Here, microchannels with designable holes are manufactured by combining laser printing with line-contact capillary-force assembly. Two microwalls are first printed by femtosecond laser direct-writing, and subsequently driven to collapse into a channel by the capillary force that arises in the evaporation of developer...
April 25, 2017: Small
https://www.readbyqxmd.com/read/28428527/-treatment-strategy-for-complicated-acute-type-b-aortic-dissection-in-the-thoracic-endovascular-aortic-repair-era
#10
Norihisa Karube, Keiji Uchida, Shinichi Suzuki, Munetaka Masuda
Our treatment strategy for acute type B aortic dissection (ABAD) included complicated type is as follows. Indications of thoracic endovascular aortic repair (TEVAR) for ABAD are rupture and organ ischemia, and TEVAR has been the 1st line central repair therapy since January 2009 in our institution. At the time of TEVAR for ruptured communicating type ABAD, we usually seal the proximal entry tear and cover the existing range of hematoma at descending aorta. Procedures for ABAD with malperfusion should be changed according to the patient's condition such as branch vessel obstructions either dynamic type or static type...
April 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28376705/a-double-nellix-and-chimney-covered-stents-challenging-treatment-of-pararenal-aortic-aneurysm
#11
Nazzareno Stella, Roberta Ficarelli, Raffaele Dito, Domitilla Brancadoro, Michele Rossi, Maurizio Taurino
A 77-year-old male patient presented with a symptomatic, 66-mm pararenal aortic aneurysm. The patient was classified as unsuitable for open surgery due to significant comorbidities. Fenestrated or branched endografts were contraindicated due to the poor iliac access (6 mm diameter). A double Nellix with chimney endovascular aneurysm sealing (ChEVAS) technique was selected to exclude the pararenal aortic aneurysm and to preserve renal arteries and the superior mesenteric artery. Technical preplanning considered the ideal proximal landing zone to be close to the origin of the almost occluded celiac trunk and the distal common iliac arteries as the ideal distal landing zone...
May 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28350273/a-randomized-comparative-trial-of-otsc-and-padlock-for-upper-gi-hemostasis-in-a-standardized-experimental-setting
#12
Ruediger L Prosst, Thomas Kratt
INTRODUCTION: Upper gastrointestinal bleeding (UGIB) is the key emergency situation in clinical endoscopy and is traditionally treated with injection, thermal or through the scope clipping therapy. Mortality rates are in the range of 8-10% and demand new treatment approaches. The Over-The-Scope Clip (OTSC(®)) has been described as a very effective hemostatic device in UGIB. We compared OTSC with the Padlock™ device in an established pre-clinical setting. MATERIAL AND METHODS: Our test-bed consisted of the biohybrid EASIE model using soft silicone tubes, tunneled into the gastric wall and surfacing at a mucosa defect, representing the bleeding site...
April 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28346863/lymph-node-dissection-using-bipolar-vessel-sealing-device-during-reduced-port-laparoscopic-distal-gastrectomy-for-gastric-cancer-result-of-a-pilot-study-from-a-single-institute
#13
Chang Min Lee, Da Won Park, Sungsoo Park, Jong-Han Kim, Seong-Heum Park, Chong-Suk Kim
INTRODUCTION: The electrothermal bipolar vessel-sealing device (BVSD) is known to supply a strong vessel-sealing power. However, only few studies have reported lymph node dissection (LND) using only BVSD during laparoscopic surgery for gastric cancer. The purpose of this study was to investigate the feasibility of LND using BVSD during reduced port laparoscopic distal gastrectomy for gastric cancer. METHODS: From May 2015, patients in whom three- or single-port laparoscopic distal gastrectomy had been engaged for gastric cancer were enrolled in this study...
March 27, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28334606/gradual-suppression-of-transcytosis-governs-functional-blood-retinal-barrier-formation
#14
Brian Wai Chow, Chenghua Gu
Blood-central nervous system (CNS) barriers partition neural tissues from the blood, providing a homeostatic environment for proper neural function. The endothelial cells that form blood-CNS barriers have specialized tight junctions and low rates of transcytosis to limit the flux of substances between blood and CNS. However, the relative contributions of these properties to CNS barrier permeability are unknown. Here, by studying functional blood-retinal barrier (BRB) formation in mice, we found that immature vessel leakage occurs entirely through transcytosis, as specialized tight junctions are functional as early as vessel entry into the CNS...
March 22, 2017: Neuron
https://www.readbyqxmd.com/read/28334448/carotid-artery-bursting-pressure-and-seal-time-after-multiple-uses-of-a-vessel-sealing-device
#15
Jocelin S Blake, Brian J Trumpatori, Kyle G Mathews, Emily H Griffith
OBJECTIVE: To determine any loss of function of a single-use bipolar vessel sealing device after repeated sterilization and use on canine carotid arteries. STUDY DESIGN: Ex vivo; randomized block design (dog). SAMPLE POPULATION: Carotid artery segments (n = 90) from 15 canine cadavers. METHODS: Six 10-mm LigaSure Atlas 20 cm devices (Covidien Inc, Minneapolis, Minnesota) were used to seal canine carotid artery segments in one cadaver, then resterilized using ethylene oxide and reused in a second cadaver, and so on, for a total of 15 uses/15 cadavers per LigaSure...
March 23, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28331452/balloon-occlusion-technique-for-managing-portal-vein-hemorrhage-in-liver-transplantation
#16
John B Seal, Humberto Bohorquez, Naren Battula, Lucia DeGregorio, Emily Bugeaud, David S Bruce, Ian C Carmody, Ari J Cohen, George E Loss
BACKGROUND: Portal vein thrombosis (PVT) is relatively common among candidates for liver transplantation and can present significant intraoperative challenges. Depending on the extent of PVT, thromboendovenectomy (TEV), portal bypass, or systemic inflow may be required to restore portal inflow. While TEV is the most commonly used approach to restore anatomic portal inflow, portal vein injury and life-threatening hemorrhage are risks with this technique. CASE REPORT: We present a salvage technique for managing portal vein injury during TEV using intraluminal balloon occlusion of the portal vein during portal vein repair and reconstruction...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28314072/cordless-ultrasonic-dissector-versus-advanced-bipolar-vessel-sealing-device-for-laparoscopic-ovariectomy-in-dogs
#17
Anneleen L Spillebeen, Sara S D S Janssens, Rachel E Thomas, Jolle Kirpensteijn, Sebastiaan A van Nimwegen
OBJECTIVE: To compare Sonicision cordless ultrasonic dissector (SCUD) to LigaSure vessel sealing device (LVSD) for laparoscopic ovariectomy (Lap OVE) in dogs. STUDY DESIGN: Randomized, paired prospective clinical trial. ANIMALS: Client-owned dogs (n = 22) presented for elective Lap OVE. METHODS: Dogs were randomly assigned to one of two protocols: protocol 1 required the left ovary resected using SCUD and the right ovary using LVSD; protocol 2 required the left ovary resected using LVSD and the right ovary using SCUD...
March 17, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28274882/vacuum-sealing-drainage-as-a-pre-surgical-adjunct-in-the-treatment-of-complex-open-hand-injuries-report-of-17-cases
#18
X-F Niu, J-H Yi, G-Q Zha, J Hu, Y-J Liu, L-B Xiao
BACKGROUND: Few studies have been conducted to explore the use of the vacuum sealing drainage (VSD) technique in complex hand injuries. The aim of this study was to report outcomes in patients with complex hand injuries receiving VSD as a coadjuvant treatment prior to second-stage surgery. METHODS: This case series study retrospectively reviewed the patients who underwent VSD for treatment of hand injuries. Inclusion criteria for the study were: (1) traumatic soft tissue defects of the hand and wrist, accompanied by different degrees of injury and exposure of bone, tendon, or blood vessel; (2) the wound surface of hand and wrist was seriously contaminated and direct wound closure was not possible; and (3) the soft tissues of hand and wrist were seriously lacerated or avulsed, and showed necrosis or acute infection...
May 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28267665/laparoscopic-partial-splenectomy-for-congenital-splenic-cyst-in-a-pediatric-patient-case-report-and-review-of-literature
#19
Ulises Garza-Serna, Christian Ovalle-Chao, David Martinez, Eduardo Flores-Villalba, Jose A Diaz-Elizondo, Ulises de Jesus Garza-Luna
Non-parasitic splenic cysts (NPSC) are a rare condition that makes difficult to know their true incidence and represent 10% of all benign splenic cysts, they can be either congenital with the presence of epithelial lining that originate from invagination of the capsular mesothelial lining or post-traumatic with absence of epithelial lining. We present our management of a splenic congenital cyst in a pediatric patient. A 10-year-old female patient presented to the clinic complaining with a 3-week abdominal pain at the left upper quadrant...
February 20, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28256727/laparoscopic-cryptorchidectomy-with-a-vessel-sealing-device-in-dorsal-recumbent-horses-43-cases
#20
José L Bracamonte, Keri L Thomas
OBJECTIVE: To document laparoscopic cryptorchidectomy with a vessel-sealing device in dorsal recumbent horses. STUDY DESIGN: Retrospective study. ANIMALS: Forty-three male horses. METHODS: Food was withheld for 36 hours before horses were placed under general anesthesia and positioned in dorsal recumbency. One laparoscopic portal and 2 instrument portals were placed for the laparoscopic procedure. A third instrument portal was created in bilateral cryptorchid horses...
March 3, 2017: Veterinary Surgery: VS
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