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https://www.readbyqxmd.com/read/27913175/automated-cta-based-measurements-for-planning-support-of-minimally-invasive-aortic-valve-replacement-surgery
#1
Mustafa A Elattar, Floortje van Kesteren, Esther M Wiegerinck, Ed Vanbavel, Jan Baan, Riccardo Cocchieri, Bas de Mol, Nils R Planken, Henk A Marquering
Minimally invasive aortic valve replacement (mini-AVR) procedures are a valuable alternative to conventional open heart surgery. Currently, planning of mini-AVR consists of selection of the intercostal space closest to the sinotubular junction on preoperative computer tomography images. We developed an automated algorithm detecting the sinotubular junction (STJ) and intercostal spaces for finding the optimal incision location. The accuracy of the STJ detection was assessed by comparison with manual delineation by measuring the Euclidean distance between the manually and automatically detected points...
November 29, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27906676/role-of-systematic-lymphadenectomy-as-part-of-primary-debulking-surgery-for-optimally-cytoreduced-advanced-ovarian-cancer-reappraisal-in-the-era-of-radical-surgery
#2
Kyung Jin Eoh, Jung-Yun Lee, Jung Won Yoon, Eun Ji Nam, Sunghoon Kim, Sang-Wun Kim, Young Tae Kim
The prognostic significance of pelvic and para-aortic lymphadenectomy during primary debulking surgery for advanced-stage ovarian cancer remains unclear. This study aimed to evaluate the survival impact of lymph node dissection (LND) in patients treated with optimal cytoreduction for advanced ovarian cancer. Data from 158 consecutive patients with stage IIIC-IV disease who underwent optimal cytoreduction (<1 cm) were obtained via retrospective chart review. Patients were classified into two groups: (1) lymph node sampling (LNS), node count <20; and (2) LND, node count ≥20...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27904103/plasma-renin-activity-predicts-the-improvement-in-resistant-hypertension-after-percutaneous-transluminal-renal-artery-angioplasty
#3
Hyuma Daidoji, Yoshiaki Tamada, Saya Suzuki, Ken Watanabe, Taku Shikama, Yoku Kikuchi, Shigehiko Kato, Katsuaki Takahashi, Akio Fukui, Motoyuki Matsui, Tomoyasu Yahagi, Toshikazu Goto
Objective Percutaneous transluminal renal artery angioplasty (PTRA) has been recommended for the treatment of renovascular resistant hypertension. However, large randomized trials have reported that PTRA did not improve the outcomes compared with optimal medical therapy in patients with renal artery stenosis (RAS). It is important to identify patients with renovascular hypertension who are likely to respond to PTRA. We herein examined whether or not the plasma renin activity (PRA) could predict the improvement in resistant hypertension after PTRA for RAS...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27903253/developing-a-preoperative-predictive-model-for-ureteral-length-for-ureteral-stent-insertion
#4
Takashi Kawahara, Kentaro Sakamaki, Hiroki Ito, Shinnosuke Kuroda, Hideyuki Terao, Kazuhide Makiyama, Hiroji Uemura, Masahiro Yao, Hiroshi Miyamoto, Junichi Matsuzaki
BACKGROUND: Ureteral stenting has been a fundamental part of various urological procedures. Selecting a ureteral stent of optimal length is important for decreasing the incidence of stent migration and complications. The aim of the present study was to develop and internally validate a model for predicting the ureteral length for ureteral stent insertion. METHODS: This study included a total of 127 patients whose ureters had previously been assessed by both intravenous urography (IVU) and CT scan...
November 30, 2016: BMC Urology
https://www.readbyqxmd.com/read/27903113/microscopic-versus-endoscopic-approaches-for-craniopharyngiomas-choosing-the-optimal-surgical-corridor-for-maximizing-extent-of-resection-and-complication-avoidance-using-a-personalized-tailored-approach
#5
James K Liu, Ilesha A Sevak, Peter W Carmel, Jean Anderson Eloy
Resection remains the mainstay of treatment for craniopharyngiomas with the goal of radical resection, if safely possible, to minimize the rate of recurrence. Endoscopic endonasal and microscopic transcranial surgical approaches have both become standard methods for the treatment for craniopharyngiomas. However, the approach selection paradigm for craniopharyngiomas is still a point of discussion. Choosing the optimal surgical approach can play a significant role in maximizing the extent of resection and surgical outcome while minimizing the risks of potential complications...
December 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/27902945/artificial-cervical-disc-replacement-with-the-prestige-lp-prosthesis-for-the-treatment-of-non-contiguous-2-level-cervical-degenerative-disc-disease-a-minimum-24-month-follow-up
#6
Tingkui Wu, Beiyu Wang, Chen Ding, Yang Meng, Jigang Lou, Yi Yang, Hao Liu
OBJECTIVE: We describe the features of non-contiguous 2-level cervical degenerative disc disease (NCDDD), investigate the safety and feasibility of artificial cervical disc replacement (ACDR) for the treatment of NCDDD, and expect that our study will provide spine surgeons with an alternative procedure for NCDDD. METHODS: Twenty-five patients with NCDDD received ACDR with a Prestige-LP prosthesis. Clinical outcomes were evaluated using the 36-Short Form (SF-36, Mental Component Summary [MCS] and Physical Component Summary [PCS]), Visual Analog Scale (VAS), Japanese Orthopedic Association (JOA), and Neck Disability Index (NDI) scores...
November 17, 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27902606/preoperative-aspartate-aminotransferase-to-platelet-ratio-index-apri-is-a-predictor-on-postoperative-outcomes-of-hepatocellular-carcinoma
#7
JiWen Cheng, Pu Zhao, JiangBo Liu, Xi Liu, XuanLin Wu
Preoperative aspartate aminotransferase-to-platelet ratio index (APRI) has been identified as a biochemical marker for histological fibrogenesis and fibrosis in cirrhosis and prognosis of hepatocellular carcinoma (HCC). Whether preoperative APRI can predict postoperative short-term outcomes has not been studied. The purpose of this study was to investigate the ability of preoperative APRI to predict short-term outcomes following liver resection for HCC. APRI was evaluated in 360 patients undergoing liver resection for HCC...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27901490/prognostic-value-of-preoperative-plasma-fibrinogen-level-and-platelet-to-lymphocyte-ratio-f-plr-in-patients-with-localized-upper-tract-urothelial-carcinoma
#8
Jiwei Huang, Yichu Yuan, Yanqing Wang, Jin Zhang, Wen Kong, Haige Chen, Yonghui Chen, Yiran Huang
PURPOSE: Hemostatic factors is thought to have a potentially significant role in progression and metastasis of malignant tumors. We investigated the prognostic value of preoperative plasma fibrinogen level and platelet-to-lymphocyte ratio (PLR) in localized upper tract urothelial carcinoma (UTUC). MATERIALS AND METHODS: A total of 481 patients who underwent radical nephroureterectomy for localized UTUC (pTa-4N0M0) were identified between January 2002 and June 2013...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27898989/identifying-an-ideal-time-frame-for-staged-bilateral-total-knee-arthroplasty-to-maximize-functional-outcome
#9
Jared Ze Yang Yeh, Jerry Yongqiang Chen, Wu Chean Lee, Hwei Chi Chong, Hee Nee Pang, Darren Keng Jin Tay, Shi-Lu Chia, Ngai Nung Lo, Seng Jin Yeo
Compared with staged bilateral total knee arthroplasty (TKA), simultaneous bilateral TKA carries a higher risk of cardiac complications, pulmonary complications, and mortality, especially in patients with preexisting cardiopulmonary disease or advanced age. However, the period of time between staged TKAs that would eliminate these increased risks has yet to be determined. The purpose of this study is to evaluate complication rates and functional outcome in patients who underwent staged bilateral TKA and to determine an optimal time frame for the second knee...
November 29, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27894727/factors-associated-with-gait-speed-recovery-after-total-knee-arthroplasty-a-longitudinal-study
#10
Yong-Hao Pua, Felicia Jie-Ting Seah, Ross Allan Clark, Cheryl Lian-Li Poon, John Wei-Ming Tan, Hwei-Chi Chong
OBJECTIVES: Gait speed limitations can remain significant issues after a total knee arthroplasty (TKA) but their associated factors are not well understood. This study aimed to identify the factors associated with acute gait speed recovery post-TKA. METHODS: We performed a prospective longitudinal study of 1765 patients who underwent primary TKA between July 2013 and July 2015. At 4, 8, 12, and 16 weeks postsurgery, fast gait speed was measured. The factors associated with gait speed over time since TKA were identified using multivariable generalized least squares modeling...
November 1, 2016: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/27894664/tomographic-osteometry-of-the-zygomatic-bone-applied-to-traumatology-of-facial-bones-preliminary-retrospective-study-of-zygomatic-summit-in-28-patients
#11
Barbara Lerhe, Sarah Alshehri, Denis Ferachon, Sébastien Dejean, Anne Sophie Salabert, Raphael Lopez
BACKGROUND: The available referential measures defining the zygomatic bone morphology are adequate enough for full determination of the zygoma positioning, especially for trauma surgery, but osteometric analysis of the zygoma positioning based on tomographic examinations could be useful in peroperative and postoperative imaging. In this study, we propose referential measures, taking into account the morphology and the symmetry of the zygoma. In addition, the reliability and reproducibility are considered...
October 28, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27894180/causes-of-failure-of-anterior-cruciate-ligament-reconstruction-and-revision-surgical-strategies
#12
Paolo Di Benedetto, Enrico Di Benedetto, Andrea Fiocchi, Alessandro Beltrame, Araldo Causero
Purpose: Long-term outcomes of anterior cruciate ligament (ACL) reconstruction are good or excellent; however, 0.7%-20% of patients suffer from recurrent instability due to graft failure. The purpose of this paper was to analyse failure aetiology and the possibilities of revision surgical strategies, with a description of our experience. We obtained optimal and good results in most of our patients. Materials and Methods: We retrospectively reviewed 42 patients who underwent revision surgery (43 revisions) due to relapsing instability after ACL reconstruction between 2006 and 2015...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27893469/a-review-of-the-surgical-management-of-extrathoracic-solitary-fibrous-tumors
#13
Babar Kayani, Aadhar Sharma, Mathew D Sewell, Johnson Platinum, Andre Olivier, Timothy W R Briggs, Deborah M Eastwood
OBJECTIVES: Extrathoracic solitary fibrous tumors (ESFTs) are rare low-to-intermediate grade spindle-cell neoplasms of pluripotent fibroblastic or myofibroblastic origin. This review explores prognostic factors in the management of ESFTs and provides guidance on optimal treatment regimens based on the current literature. PATIENTS AND METHODS: Electronic searches were performed using MEDLINE, Embase, and the Cochrane library to identify studies on prognostic factors in the management of ESFTs published between January 1970 and June 2016...
November 23, 2016: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/27893094/comparison-of-patient-specific-computational-modeling-predictions-and-clinical-outcomes-of-lasik-for-myopia
#14
Ibrahim Seven, Ali Vahdati, Vinicius Silbiger De Stefano, Ronald R Krueger, William J Dupps
Purpose: To assess the predictive accuracy of simulation-based LASIK outcomes. Methods: Preoperative and 3-month post-LASIK tomographic data from 20 eyes of 12 patients who underwent wavefront-optimized LASIK for myopia were obtained retrospectively. Patient-specific finite element models were created and case-specific treatment settings were simulated. Simulated keratometry (SimK) values and the mean tangential curvature of the central 3 mm (Kmean) were obtained from the anterior surfaces of the clinical tomographies, and computational models were compared...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27893030/development-and-initial-validation-of-the-risk-analysis-index-for-measuring-frailty-in-surgical-populations
#15
Daniel E Hall, Shipra Arya, Kendra K Schmid, Casey Blaser, Mark A Carlson, Travis L Bailey, Georgia Purviance, Tammy Bockman, Thomas G Lynch, Jason Johanning
Importance: Growing consensus suggests that frailty-associated risks should inform shared surgical decision making. However, it is not clear how best to screen for frailty in preoperative surgical populations. Objective: To develop and validate the Risk Analysis Index (RAI), a 14-item instrument used to measure surgical frailty. It can be calculated prospectively (RAI-C), using a clinical questionnaire, or retrospectively (RAI-A), using variables from the surgical quality improvement databases (Veterans Affairs or American College of Surgeons National Surgical Quality Improvement Projects)...
November 23, 2016: JAMA Surgery
https://www.readbyqxmd.com/read/27890197/-treatment-of-partial-articular-fractures-of-the-distal-radius-in-active-young-adults
#16
C Camps, A Durand, M Merle
The wrist's function is at stake in young active adults with partial intra-articular fractures of the distal radius. The high energy nature of these injuries, displaced fractures with risk of malunion in case of insufficient treatment, and associated ligament or cartilage damage all hinder the prognosis of these fractures. Many classification systems exist to help us analyze and in some cases, select a treatment. Optimal management requires a high-quality preoperative assessment and a precise surgical technique coupled with the use of arthroscopy to deal with joint and ligament injuries in the same operation...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27889320/optimizing-effectivity-of-tranexamic-acid-in-bilateral-knee-arthroplasty-a-prospective-randomized-controlled-study
#17
Rajesh N Maniar, Tushar Singhi, Aniket Patil, Gaurav Kumar, Parul Maniar, Jaivardhan Singh
INTRODUCTION: Tranexamic acid (TEA) is used in reducing surgical blood loss. Literature shows no optimal regimen recommended for Bilateral Total Knee Arthroplasty (TKA). We evaluated three TEA regimens differing in dosage, timing and mode of administration in bilateral TKA to identify the most effective regimen to reduce blood loss. METHODS: We prospectively studied three TEA regimens (25 patients each) as follows: (1) two intraoperative, intravenous doses (IOIO), (2) two intraoperative local applications (LALA), and (3) one preoperative plus two intraoperative, intravenous doses (POIOIO)...
November 23, 2016: Knee
https://www.readbyqxmd.com/read/27888711/preoperative-monocyte-to-lymphocyte-ratio-in-peripheral-blood-predicts-stages-metastasis-and-histological-grades-in-patients-with-ovarian-cancer
#18
Jiangdong Xiang, Lina Zhou, Xing Li, Wei Bao, Taizhong Chen, Xiaowei Xi, Yinyan He, Xiaoping Wan
PURPOSE: The monocyte-to-lymphocyte ratio (MLR) has been shown to be associated with the prognosis of various solid tumors. This study sought to evaluate the important value of the MLR in ovarian cancer patients. METHODS: A total of 133 ovarian cancer patients and 43 normal controls were retrospectively reviewed. The patients' demographics were analyzed along with clinical and pathologic data. The counts of peripheral neutrophils, lymphocytes, monocytes, and platelets were collected and used to calculate the MLR, neutrophil-to-lymphocyte ratio (NLR)...
November 23, 2016: Translational Oncology
https://www.readbyqxmd.com/read/27887856/preoperative-thoracic-false-lumen-branches-relate-to-aortic-remodeling-after-thoracic-endovascular-aortic-repair-for-debakey-iiib-aortic-dissection
#19
Yang Yang Ge, Wei Guo, Nick Cheshire, Xiao Ping Liu, Xin Jia, Jiang Xiong, Xiao Hui Ma, Hong Peng Zhang
OBJECTIVE: This study evaluated the association between thoracic false lumen branches (TFLBs; dissected thoracic branches fed by a false lumen) and distal thoracic aortic enlargement (DTAE) after thoracic endovascular aortic repair (TEVAR) for DeBakey IIIb aortic dissection. METHODS: We retrospectively analyzed the records of 67 patients with DeBakey IIIb dissection initially treated with TEVAR between January 2011 and December 2013. Preoperative and postoperative computed tomography angiography images were reviewed to evaluate the number of preoperative TFLBs and aortic diameter change after TEVAR...
November 22, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27887852/morphological-and-functional-imaging-of-neck-paragangliomas
#20
J-P Guichard, N Fakhry, J Franc, P Herman, C-A Righini, D Taieb
OBJECTIVE: To review the optimal techniques for localization and characterization of neck paragangliomas (PGL). MATERIAL AND METHODS: Systematic review of the literature from the PubMed/Medline database. RESULTS: Neck PGL are hypervascular tumours essentially arising from paraganglionic tissue situated at the carotid bifurcation (carotid body) and along the vagus nerve. Morphological and functional imaging are indicated to confirm the diagnosis, identify multifocal disease and for local and regional staging...
November 22, 2016: European Annals of Otorhinolaryngology, Head and Neck Diseases
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