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Robert Westermann, Chris A Anthony, Kyle R Duchman, Yubo Gao, Andrew J Pugely, Carolyn M Hettrich, Ned Amendola, Brian R Wolf
Infection following anterior cruciate ligament reconstruction (ACLR) is rare. Previous authors have concluded that diabetes, tobacco use, and previous knee surgery may influence infection rates following ACLR. The purpose of this study was to identify a cohort of patients undergoing ACLR and define (1) the incidence of infection after ACLR from a large multicenter database and (2) the risk factors for infection after ACLR. We identified patients undergoing elective ACLRs in the American College of Surgeons National Surgical Quality Improvement Program database between 2007 and 2013...
October 25, 2016: Journal of Knee Surgery
Sabina Martí Gamboa, Olga Redrado Giménez, Jara Pascual Mancho, María Lapresta Moros, Julia Ruiz Sada, Sergio Castan Mateo
Objective The objective of this study was to determine ability to detect neonatal acidemia and interobserver agreement with the FIGO 3-tier and 5-tier fetal heart rate (FHR) classification systems. Design This was a case-control study. Setting This study was set at the University Medical Center. Population A total of 202 FHR tracings of 102 women who delivered an acidemic fetus (umbilical arterial cord gas pH ≤ 7.10 and BE < - 8) and 100 who delivered a nonacidemic fetus (umbilical arterial cord gas pH > 7...
October 25, 2016: American Journal of Perinatology
Sarah B Bateni, Frederick J Meyers, Richard J Bold, Robert J Canter
BACKGROUND: The impact of surgery on end of life care for patients with disseminated malignancy (DMa) is incompletely characterized. The purpose of this study was to evaluate postoperative outcomes impacting quality of care among DMa patients, specifically prolonged length of hospital stay, readmission, and disposition. METHODS: The American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database was queried for years 2011-2012. DMa patients were matched to non-DMa patients with comparable clinical characteristics and operation types...
2016: PloS One
Wei-Hung Chan, Meei-Shyuan Lee, Chin Lin, Chang-Chieh Wu, Hou-Chuan Lai, Shun-Ming Chan, Chueng-He Lu, Chen-Hwan Cherng, Zhi-Fu Wu
We conducted a retrospective study to investigate the anesthesia-controlled time and factors that contribute to prolonged extubation in open colorectal surgery. Using our hospital database, demographic data, various time intervals (waiting for anesthesia time, anesthesia time, surgical time, emergence time, exit from operating room after extubation, total operating room time, and post-anesthesia care unit stay time), and incidence of prolonged extubation (≥ 15 mins), were compared between patients who received desflurane/fentanyl-based anesthesia and total intravenous anesthesia via target-controlled infusion with fentanyl/propofol...
2016: PloS One
Even Hovig Fyllingen, Anne Line Stensjøen, Erik Magnus Berntsen, Ole Solheim, Ingerid Reinertsen
To facilitate a more widespread use of volumetric tumor segmentation in clinical studies, there is an urgent need for reliable, user-friendly segmentation software. The aim of this study was therefore to compare three different software packages for semi-automatic brain tumor segmentation of glioblastoma; namely BrainVoyagerTM QX, ITK-Snap and 3D Slicer, and to make data available for future reference. Pre-operative, contrast enhanced T1-weighted 1.5 or 3 Tesla Magnetic Resonance Imaging (MRI) scans were obtained in 20 consecutive patients who underwent surgery for glioblastoma...
2016: PloS One
Arvind R Murali, Carlos Romero-Marrero, Charles Miller, Federico Aucejo, Abraham Levitin, Amanjit Gill, Gordon McLennan, Karunakaravel Karuppasamy, Nizar N Zein, Rocio Lopez, K V Narayanan Menon
BACKGROUND: Patients with hepatocellular carcinoma (HCC) outside Milan criteria (MC) may be candidates for liver transplantation (LT) after successful downstaging. Factors that predict successful downstaging are unclear. We aimed to identify the predictors of successful downstaging of HCC in patients outside MC. METHODS: We performed a retrospective cohort study on consecutive patients with HCC outside MC who received downstaging with locoregional therapy. Clinical and laboratory variables, tumor characteristics including total tumor volume (TTV) and up-to-7 criteria were recorded...
November 2016: Transplantation
Firas Zahr Eldeen, Garrett R Roll, Carlos Derosas, Rajashankar Rao, Muhammad S Khan, Bridget K Gunson, James Hodson, Hynek Mergental, Ben-Hur Ferraz-Neto, John Isaac, Paolo Muiesan, Darius F Mirza, Asim Iqbal, M Thamara P R Perera
BACKGROUND: Whilst causes of hepatic artery thrombosis (HAT) after liver transplantation (LT) are multifactorial, early HAT (E-HAT) remains pertinent complication impacting on graft and patient survival. Currently there is no screening tool that would identify patients with increased risk of developing E-HAT. METHODS: We analyzed the native procoagulant state of LT recipients, identified through pretransplant thromboelastographic (TEG) data among other known risk factors, to identify risk factors for E-HAT...
November 2016: Transplantation
Yisong Hu, Xiaochang C Wang, Qiyuan Sun, Huu Hao Ngo, Zhenzhen Yu, Jialing Tang, Qionghua Zhang
Three PAC-DMBRs were developed for wastewater treatment under different PAC dosages with biomass concentrations averaged at 2.5, 3.5 and 5.0g/L. The DMBRs could be continuously operated at 40-100L/m(2)h, while higher fluxes were obtained within the PAC-DMBRs with hydraulic retention times varying in 4-10h. A dose of 1g/L PAC brought about obvious improvement in the sludge particle size distribution, settling, flocculating and dewatering properties due to the formation of biological PAC, and the sludge properties were further improved at a higher PAC dose (3g/L)...
October 15, 2016: Bioresource Technology
Zhen Shen, Chen-Yang Zhi, Ruo-Nan Wang, Hai-Cheng Gao
The purpose of this case is to investigate a case of obturator hernia leading to right thigh abscess on 68-year-old woman of China. A 68-year-old Chinese woman was referred to China-Japan Friendship Hospital of Jilin University with abdominal pain, bloating, exhaust, stop defecation in 2011. She had chronic bronchitis, emphysema with a history of 20 years. This patient did not have any bad habits, such as smoking, alcohol consumption, etc. In this surgery, CT was used to diagnose the basic condition of the patient...
October 19, 2016: International Journal of Surgery Case Reports
Damon A Clark, Jonathan B Demb
Sensory systems use receptors to extract information from the environment and neural circuits to perform subsequent computations. These computations may be described as algorithms composed of sequential mathematical operations. Comparing these operations across taxa reveals how different neural circuits have evolved to solve the same problem, even when using different mechanisms to implement the underlying math. In this review, we compare how insect and mammalian neural circuits have solved the problem of motion estimation, focusing on the fruit fly Drosophila and the mouse retina...
October 24, 2016: Current Biology: CB
Martin Pekař, Wendy U Dittmer, Nenad Mihajlović, Gijs van Soest, Nico de Jong
The information in an ultrasound image depends on the frequency that is used. In a clinical examination it may therefore be beneficial to generate ultrasound images acquired at multiple frequencies, which is difficult to achieve with conventional transducers. Capacitive micromachined ultrasonic transducers (CMUTs) offer a frequency response that is tunable by the bias voltage. In this study we investigate this frequency tunability for ultrasonic imaging. We characterized a CMUT array operated at bias voltages up to three times higher than the collapse-voltage...
October 6, 2016: Ultrasonics
Sai Zheng, Jia-Chen Shi, Jian-Ying Hu, Wen-Xin Hu, Jing Zhang, Bing Shao
The reaction kinetics and transformation pathways between bisphenol F (BPF) and sodium hypochlorite were investigated at pH values ranging from 6.5 to 8.5 and with different initial concentration ratios. The reaction rate was pH- and free available chlorine (FAC)-dependent: the reaction rate at pH 8.5 was almost 10 times than that at pH 6.5. A total of 40 compounds were tentatively identified as chloro-substituted BPF and polyphenolic compounds by liquid chromatography quadrupole time-of-flight mass spectrometry operating in electrospray ionization mode (LC-ESI-Q-ToF), and 4 main byproducts were confirmed by (1)H and (13)C nuclear magnetic resonance (NMR)...
October 19, 2016: Water Research
Farees Ricky Tavangari, Michael Batech, J Craig Collins, Talar Tejirian
Though conventionally not considered standard of care, nonoperative management of patients with small bowel obstruction (SBO) without previous abdominal operations, so called "virgin abdomens," (VA) is presently being practiced. We aimed to determine outcomes of patients with VA undergoing operative and nonoperative management of SBO. A retrospective review of patients with SBO was performed; outcomes of patients with VA were analyzed. SBO with a VA was found in 103 patients over a 5-year period. With a mean follow-up of 4...
October 2016: American Surgeon
Aaron B Parrish, Yas Sanaiha, Beverley A Petrie, Marcia M Russell, Formosa Chen
The American Society of Colon and Rectal Surgeons rectal cancer checklist describes a set of best practices for rectal cancer surgery. The objective of this study was to assess the quality of operative reports for rectal cancer surgery based on the intraoperative American Society of Colon and Rectal Surgeons checklist items. Patients undergoing rectal cancer surgery at two public teaching hospitals from 2009 to 2015 were included. A total of 12 intraoperative checklist items were assessed. One hundred and fifty-eight operative reports were reviewed...
October 2016: American Surgeon
Massimo Arcerito, Eric Changchien, Oscar Bernal, Adam Konkoly-Thege, John Moon
Laparoscopic inguinal hernia repair has been shown to have multiple advantages compared with open repair such as less postoperative pain and earlier resume of daily activities with a comparable recurrence rate. We speculate robotic inguinal hernia repair may yield equivalent benefits, while providing the surgeon added dexterity. One hundred consecutive robotic inguinal hernia repairs with mesh were performed with a mean age of 56 years (25-96). Fifty-six unilateral hernias and 22 bilateral hernias were repaired amongst 62 males and 16 females...
October 2016: American Surgeon
Michael P O'Leary, Angela L Neville, Jessica A Keeley, Dennis Y Kim, Christian de Virgilio, David S Plurad
Preoperative diagnosis of ischemic bowel in patients with small bowel obstruction (SBO) is a clinical challenge. The aim of this study was to identify preoperative variables associated with ischemic bowel found at operative exploration. We performed a 5-year retrospective review of patients admitted to a university affiliated, county funded hospital who underwent exploratory laparoscopy or laparotomy for SBO. Patients were excluded if they had a known preoperative malignancy or hernia on physical examination...
October 2016: American Surgeon
Jessica A Zagory, Jamie Golden, Kathleen Holoyda, Natalie Demeter, Nam X Nguyen
The optimal management of pilonidal disease in the pediatric population is still debated. We conducted a retrospective review of patients 21 years old and younger who underwent surgical management for pilonidal disease between 2009 and 2013 at a single pediatric institution. Sixty patients (41.7% male) were included in the analysis, with a mean age of 15.0 years (range, 13-20). Twelve (20%) had a prior drainage procedure for pilonidal abscess before the definitive operative treatment. After excision to the presacral fascia, 36 (60%) had primary closure, 17 (28...
October 2016: American Surgeon
Kyle G Cologne, Sean Byers, David R Rosen, Grace S Hwang, Adrian E Ortega, Glenn T Ault, Sang W Lee
A prospectively maintained database of 415 patients undergoing colectomy was evaluated. We performed a logistic regression analysis to identify factors associated with 1) length of stay (LOS) of 2 days or less and 2) LOS of 10 days or more. Investigated variables included demographics, American Society of Anesthesiology (ASA) score, diagnosis, operative procedure, approach and time, transfusion requirements, and occurrence of any complications. Factors associated with a LOS of two days or less included ASA [odds ratio (OR): 0...
October 2016: American Surgeon
Ethan Frank, Joshua Park, Alfred Simental, Christopher Vuong, Yuan Liu, Daniel Kwon, Yi Lin, Pedro Andrade Filho
Minimally invasive video-assisted thyroidectomy (MIVAT) has gained acceptance as an alternative to conventional thyroidectomy. This technique results in less bleeding, postoperative pain, shorter recovery time, and better cosmetic results without increasing morbidity. We retrospectively assessed outcomes in 583 patients having MIVAT from May 2005 to September 2014. The study population was divided into groups according to periods: 2005 to 2009 and 2010 to 2014. Operative data, complications, and length of stay were collected and compared...
October 2016: American Surgeon
Seyed S Pairawan, Derek Cody, Hahns Kim, M Katherine Hughes, Naveenraj Solomon, Maheswari Senthil, Carlos Garberoglio, Sharon Lum
Nipple-sparing mastectomy (NSM) offers improved cosmesis for women undergoing mastectomy; however, there is increased risk for complications with this technique. We sought to determine if standard anatomic measurements could be used to predict complications of NSM. We performed a retrospective review of NSM for which anthropometric measurements of sternal notch to nipple distance, base width, and inframammary fold to nipple distance were available, and compared outcomes by anatomic measurements. We identified 102 cases of NSM with measurements available for study performed in 55 patients...
October 2016: American Surgeon
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