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Intraoperative assessment

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https://www.readbyqxmd.com/read/28239843/liver-transection-using-indocyanine-green-fluorescence-imaging-and-hepatic-vein-clamping
#1
Y Kawaguchi, Y Nomura, M Nagai, D Koike, Y Sakuraoka, T Ishida, T Ishizawa, N Kokudo, N Tanaka
BACKGROUND: Three-dimensional (3D) imaging has facilitated liver resection with excision of hepatic veins by estimating the liver volume of portal and hepatic venous territories. However, 3D imaging cannot be used for real-time navigation to determine the liver transection line. This study assessed the value of indocyanine green (ICG) fluorescence imaging with hepatic vein clamping for navigation during liver transection. METHODS: Consecutive patients who underwent liver resection with excision of major hepatic veins between 2012 and 2013 were evaluated using ICG fluorescence imaging after clamping veins and injecting ICG...
February 27, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28239827/quantitative-difference-of-acute-intraoperative-expansion-in-various-body-regions
#2
E Raposio, N Bertozzi
OBJECTIVE: To investigate the efficacy of intraoperative sustained limited expansion (ISLE) by examining the ex vivo biomechanical properties of acutely expanded skin flaps. MATERIALS AND METHODS: Fourteen fresh male cadavers were tested. On both sides of each cadaver, a 4 × 10 cm, the laterally based flap was raised at the external auditory canal of the scalp and a 15 × 8 cm, the proximately based flap was raised at the lateral arm, anterior thorax, and lateral thigh...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28238965/preoperative-planning-for-accurate-glenoid-component-positioning-in-reverse-shoulder-arthroplasty
#3
Julien Berhouet, Lawrence Gulotta, David Dines, Edward Craig, Russell Warren, Daniel Choi, Xiang Chen, Andreas Kontaxis
BACKGROUND: Glenoid component positioning in reverse shoulder arthroplasty (RSA) is challenging. Patient-specific instrumentation (PSI) has been advocated to improve accuracy, and is based on precise preoperative planning. The purpose of this study was to determine the accuracy of glenoid component positioning when only the glenoid surface is visible, compared to when the entire scapula is visible on a 3D virtual model. METHODS: CT scans of 30 arthritic shoulders were reconstructed in 3D models...
February 23, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28238918/zenith-bifurcated-iliac-side-branch-device-mid-term-results-and-assessment-of-risk-factors-for-intraoperative-thrombosis
#4
Charline Delay, Sébastien Deglise, Anne Lejay, Yannick Georg, Mathieu Roussin, Mickaël Schaeffer, François Saucy, Fabien Thaveau, Jean-Marc Corpataux, Nabil Chakfe
INTRODUCTION: The aim of this study was to evaluate the short- and mid-term results of the Zenith bifurcated iliac side branch device (ZBIS) in the treatment of common iliac artery (CIA) aneurysms, and to assess risk factors for intraoperative internal iliac artery (IIA) thrombosis. MATERIALS AND METHODS: All patients who underwent endovascular treatment of either an isolated CIA aneurysm or an aorto-iliac aneurysm using the ZBIS device in the departments of vascular surgery of Strasbourg (France) and Lausanne (Switzerland) between January 2010 and December 2014 were retrospectively collected...
February 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28238301/the-impact-of-hemocoagulase-for-improvement-of-coagulation-and-reduction-of-bleeding-in-fracture-related-hip-hemiarthroplasty-geriatric-patients-a-prospective-single-blinded-randomized-controlled-study
#5
Meiguang Qiu, Xuming Zhang, Hongru Cai, Zhixian Xu, Hao Lin
BACKGROUND: Uncontrolled bleeding is associated with poor outcomes and mortality in geriatric patients undergoing hemiarthroplasty. Hemocoagulase agkistrodon is a hemocoagulative, anti-hemorrhagic enzyme complex from Deinagkistrodon acutus snake venom. This study aimed to investigate the efficacy of hemocoagulase agkistrodon on coagulation and bleeding outcomes in fracture-related hemiarthroplasty. PATIENTS AND METHODS: This was a prospective, single-blinded, randomized controlled trial carried out between October 2013 and September 2014 in 96 geriatric patients undergoing hemiarthroplasty for unilateral femoral neck fracture...
November 27, 2016: Injury
https://www.readbyqxmd.com/read/28237916/real-time-assessment-of-mechanical-tissue-trauma-in-surgery
#6
James H Chandler, Faisal Mushtaq, Benjamin Moxley-Wyles, Nicholas P West, Gregory W Taylor, Peter R Culmer
: This work presents a method to assess and prevent tissue trauma in real-time during surgery. BACKGROUND: Tissue trauma occurs routinely during laparoscopic surgery with potentially severe consequences. As such, it is crucial that a surgeon is able to regulate the pressure exerted by surgical instruments. We propose a novel method to assess the onset of tissue trauma by considering the mechanical response of tissue as it is loaded in real-time. METHODS: We conducted a parametric study using a lab-based grasping model and differing load conditions...
February 20, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28237520/smoking-as-a-risk-factor-for-breast-reduction-an-analysis-of-13-503-cases
#7
Jeffery S Hillam, Emily A Borsting, Jimmy H Chim, Seth R Thaller
BACKGROUND: Reduction mammaplasty is one of the most common reconstructive procedures performed by plastic surgeons. Over 100,000 procedures are performed annually. Although important for relieving the painful symptoms associated with macromastia, complication rates of this procedure are not insignificant. They are reported in up to half the cases. Reported risk factors for adverse outcomes include obesity, preoperative wound infection, and advanced American Society of Anesthesiologists status...
January 16, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28237495/prostate-cancer-before-renal-transplantation-a-multicentre-study
#8
C Chahwan, A Doerfler, N Brichart, S Bouyé, T Culty, C Iselin, C Pfister, F Sallusto, L Salomon, G Verhoest, L Viart, X Tillou
INTRODUCTION: The surgical issues of renal transplantation (RT) after localized prostate cancer (PC) treatment and oncological outcomes after transplantation in patients on the waiting list with a history of PC were unknown. We conducted a retrospective multicentre study including all patients with PC diagnosed before the kidney transplantation. METHODS: Fifty-two patients were included from December 1993 to December 2015. The median age at diagnosis of PC was 59...
February 22, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/28237428/slow-release-dexamethasone-in-proliferative-vitreoretinopathy-a-prospective-randomized-controlled-clinical-trial
#9
Philip J Banerjee, Ana Quartilho, Catey Bunce, Wen Xing, Tapiwa M Zvobgo, Nicola Harris, David G Charteris
PURPOSE: To test the hypothesis that adjunctive slow-release dexamethasone implant (Ozurdex; Allergan Inc, Irvine, CA) can improve the outcomes of vitreoretinal surgery for established proliferative vitreoretinopathy (PVR). DESIGN: A 2-year, single-center, prospective, participant- and surgeon-masked randomized controlled clinical trial (EudraCT No. 2011-004498-96). PARTICIPANTS: A total of 140 patients requiring vitrectomy surgery with silicone oil for retinal detachment with established PVR (Grade C) were randomized to standard (control) or study treatment (adjunct) in a 1:1 allocation ratio...
February 22, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28235532/massive-blood-loss-in-elective-spinal-and-orthopedic-surgery-retrospective-review-of-intraoperative-transfusion-strategy
#10
Demicha Rankin, Alix Zuleta-Alarcon, Suren Soghomonyan, Mahmoud Abdel-Rasoul, Karina Castellon-Larios, Sergio D Bergese
OBJECTIVE: To evaluate the perioperative dynamics of hematologic changes and transfusion ratio in patients undergoing a major spinal surgery accompanied with massive bleeding defined as blood loss >5 liters. DESIGN: Retrospective cohort study. SETTING: Operating room of a university-affiliated hospital. PATIENTS: Adult patients who underwent elective neurosurgical, orthopedic, or combined spinal surgical procedure between 2008 and 2012...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28231605/endonasal-versus-external-dacryocystorhinostomy-for-nasolacrimal-duct-obstruction
#11
REVIEW
Lona Jawaheer, Caroline J MacEwen, Deepa Anijeet
BACKGROUND: A dacryocystorhinostomy (DCR) procedure aims to restore drainage of tears by bypassing a blockage in the nasolacrimal duct, through the creation of a bony ostium that allows communication between the lacrimal sac and the nasal cavity. It can be performed using endonasal or external approaches. The comparative success rates of these two approaches have not yet been established and this review aims to evaluate the relevant up-to-date research. OBJECTIVES: The primary aim of this review is to compare the success rates of endonasal DCR with that of external DCR...
February 24, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28231390/intraoperative-assessment-of-laryngeal-pathologies-with-optical-coherence-tomography-integrated-into-a-surgical-microscope
#12
Anna S Englhard, Tom Betz, Veronika Volgger, Eva Lankenau, Georg J Ledderose, Herbert Stepp, Christian Homann, Christian S Betz
OBJECTIVE: Endoscopic examination followed by tissue biopsy is the gold standard in the evaluation of lesions of the upper aerodigestive tract. However, it can be difficult to distinguish between healthy mucosa, dysplasia, and invasive carcinoma. Optical coherence tomography (OCT) is a non-invasive technique which acquires high-resolution, cross-sectional images of tissue in vivo. Integrated into a surgical microscope, it allows the intraoperative evaluation of lesions simultaneously with microscopic visualization...
February 23, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28230623/safety-and-accuracy-of-freehand-versus-navigated-iliac-screws-results-from-222-screw-placements
#13
Randall J Hlubek, Kaith K Almefty, David S Xu, Jay D Turner, U Kumar Kakarla
STUDY DESIGN: Retrospective review. OBJECTIVE: To compare the safety and accuracy of the freehand technique versus stereotactic navigation for placement of iliac screws. SUMMARY OF BACKGROUND DATA: Iliac screw fixation is often used to augment lumbosacral reconstruction in advanced spine disease to increase the likelihood of successful arthrodesis. Iliac screws can be placed with image guidance, using either intraoperative fluoroscopy or computed tomography (CT) to guide navigation...
February 22, 2017: Spine
https://www.readbyqxmd.com/read/28230033/postoperative-infectious-complications-after-liver-resection-for-hepatocellular-carcinoma
#14
Yuan Zhao, Yi Jin, Yueming Wu
OBJECTIVE: The purpose of this study was to evaluate the postoperative infectious complications after liver resection for hepatocellular carcinoma by logistic regression analysis. MATERIALS AND METHODS: One hundred and sixty-six hepatocellular carcinoma patients who received surgery were retrospectively reviewed and included in this study. Of the included 166 patients, 42 patients had the postoperative infectious complications (case group) and other 124 patients did not develop postoperative infection (control group)...
December 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28227830/an-adaptive-model-approach-for-quantitative-wrist-rigidity-evaluation-during-deep-brain-stimulation-surgery
#15
Sofia Assis, Pedro Costa, Maria Jose Rosas, Rui Vaz, Joao Paulo Silva Cunha, Sofia Assis, Pedro Costa, Maria Jose Rosas, Rui Vaz, Joao Paulo Silva Cunha, Maria Jose Rosas, Joao Paulo Silva Cunha, Sofia Assis, Rui Vaz, Pedro Costa
Intraoperative evaluation of the efficacy of Deep Brain Stimulation includes evaluation of the effect on rigidity. A subjective semi-quantitative scale is used, dependent on the examiner perception and experience. A system was proposed previously, aiming to tackle this subjectivity, using quantitative data and providing real-time feedback of the computed rigidity reduction, hence supporting the physician decision. This system comprised of a gyroscope-based motion sensor in a textile band, placed in the patients hand, which communicated its measurements to a laptop...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227686/novel-modular-2-dof-microsurgical-forceps-for-transoral-laser-microsurgeries-ergonomic-design-and-preliminary-evaluation
#16
Manish Chauhan, Giacinto Barresi, Nikhil Deshpande, Darwin G Caldwell, Leonardo S Mattos, Manish Chauhan, Giacinto Barresi, Nikhil Deshpande, Darwin G Caldwell, Leonardo S Mattos, Darwin G Caldwell, Giacinto Barresi, Leonardo S Mattos, Nikhil Deshpande, Manish Chauhan
Transoral Laser Microsurgeries (TLM) demand a great level of control and precision in intraoperative tissue manipulation. The optimal eradication of the diseased tissue is possible only with coordinated control of the laser aiming for incision and the microsurgical tools for orienting and stretching the tissue. However, the traditional microsurgical tools are long, single purpose, one degree-of-freedom (DOF), rigid tools with small range of motion and a normal grasping handle inducing non-ergonomic usage. This paper presents a novel, modular microsurgical tool to overcome the challenges of the traditional tools and improve the surgeon-tool usage experience...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225801/perioperative-hemoglobin-area-under-the-curve-is-an-independent-predictor-of-renal-failure-after-cardiac-surgery-results-from-a-spanish-multicenter-retrospective-cohort-study
#17
Paula Duque-Sosa, Diego Martínez-Urbistondo, Gemma Echarri, Raquel Callejas, María Josefa Iribarren, Gregorio Rábago, Pablo Monedero
Perioperative anemia is an important risk factor for cardiac surgery-associated acute kidney injury (CSA-AKI). Nonetheless, the severity of the anemia and the time in the perioperative period in which the hemoglobin level should be considered as a risk factor is conflicting. The present study introduces the concept of perioperative hemoglobin area under the curve (pHb-AUC) as a surrogate marker of the evolution of perioperative hemoglobin concentration. Through a retrospective analysis of prospectively collected data, we assessed this new variable as a risk factor for the development of acute kidney injury after cardiac surgery in 966 adult patients who underwent cardiac surgery with cardiopulmonary bypass, at twenty-three academic hospitals in Spain...
2017: PloS One
https://www.readbyqxmd.com/read/28224269/severe-pelvic-organ-prolapse-treated-by-vaginal-native-tissue-repair-long-term-analysis-of-outcomes-in-146-patients
#18
Michele Carlo Schiavi, Giorgia Perniola, Violante Di Donato, Virginia Sibilla Visentin, Flaminia Vena, Anna Di Pinto, Marzio Angelo Zullo, Marco Monti, Pierluigi Benedetti Panici
AIMS: The aim of this study was to assess the effectiveness and safety of vaginal native tissue repair (VNTR) as a surgical treatment for severe pelvic organ prolapse (POP) and, second, to evaluate the impact on the quality-of-life (QoL) and sexual function. METHODS: Women with symptomatic POP (≥III stage according to POP Quantification System) with or without stress urinary incontinence (SUI) underwent VNTR. The clinical stage, 3-day voiding diary, and urodynamic testing were evaluated in the preoperative and postoperative times, respectively...
February 21, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28223258/the-neurologic-protection-of-unilateral-versus-bilateral-antegrade-cerebral-perfusion-in-aortic-arch-surgery-with-deep-hypothermic-circulatory-arrest-a-study-of-77-cases
#19
Bowen Li, Xiaoping Hu, Zhiwei Wang
BACKGROUD: Unilateral and bilateral antegrade cerebral perfusions (ACP) are recognized methods of cerebral protection in aortic arch surgery. However, the adequacy of cerebral protection in aortic arch surgery with deep hypothermic circulatory arrest is controversial. In this study, we compared unilateral and bilateral ACP of cerebral protection in aortic arch surgery by assessing the patient's intraoperative and postoperative brain function. METHODS: A total of 77 patients undergoing aortic arch surgery were included in this study...
February 20, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28222645/total-intravenous-anesthesia-produces-outcomes-superior-to-those-with-combined-intravenous-inhalation-anesthesia-for-laparoscopic-gynecological-surgery-at-high-altitude
#20
Rui Xu, Shuqin Zhou, Jin Yang, Haiyan Li, Qingguo Zhang, Guohong Zhang, Shiyuan Xu, Qing Peng
Objective We compared efficacy and adverse outcomes following totally intravenous anesthesia (TIVA) versus combined intravenous-inhalation anesthesia (CIVIA) on hemodynamics and postoperative recovery following laparoscopic gynecological (LG) surgery at high altitudes. Methods We enrolled 80 ASA I or II patients scheduled for LG surgery and randomly assigned them to TIVA with propofol (group P, n = 40) or CIVIA with isoflurane (group I, n = 40). Mean arterial pressure, heart rate, pulse oxygen saturation, and partial pressure of end-tidal carbon dioxide were measured at various time points...
February 2017: Journal of International Medical Research
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