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https://www.readbyqxmd.com/read/29352625/unilateral-repetitive-tibial-nerve-stimulation-improves-neurogenic-claudication-and-bilateral-f-wave-conduction-in-central-lumbar-spinal-stenosis
#1
Noritsuna Nakajima, Toshikazu Tani, Katsuhito Kiyasu, Masashi Kumon, Shinichirou Taniguchi, Ryuichi Takemasa, Nobuaki Tadokoro, Kazuya Nishida, Masahiko Ikeuchi
BACKGROUND: Repetitive electrical nerve stimulation of the lower limb may improve neurogenic claudication in patients with lumbar spinal stenosis (LSS) as originally described by Tamaki et al. We tested if this neuromodulation technique affects the F-wave conduction on both sides to explore the underlying physiologic mechanisms. METHODS: We studied a total of 26 LSS patients, assigning 16 to a study group receiving repetitive tibial nerve stimulation at the ankle (RTNS) on one leg, and 10 to a group without RTNS...
January 15, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29352380/integrated-prediction-of-lesion-specific-ischaemia-from-quantitative-coronary-ct-angiography-using-machine-learning-a-multicentre-study
#2
Damini Dey, Sara Gaur, Kristian A Ovrehus, Piotr J Slomka, Julian Betancur, Markus Goeller, Michaela M Hell, Heidi Gransar, Daniel S Berman, Stephan Achenbach, Hans Erik Botker, Jesper Moller Jensen, Jens Flensted Lassen, Bjarne Linde Norgaard
OBJECTIVES: We aimed to investigate if lesion-specific ischaemia by invasive fractional flow reserve (FFR) can be predicted by an integrated machine learning (ML) ischaemia risk score from quantitative plaque measures from coronary computed tomography angiography (CTA). METHODS: In a multicentre trial of 254 patients, CTA and invasive coronary angiography were performed, with FFR in 484 vessels. CTA data sets were analysed by semi-automated software to quantify stenosis and non-calcified (NCP), low-density NCP (LD-NCP, < 30 HU), calcified and total plaque volumes, contrast density difference (CDD, maximum difference in luminal attenuation per unit area) and plaque length...
January 19, 2018: European Radiology
https://www.readbyqxmd.com/read/29352176/renal-scattered-tubular-like-cells-confer-protective-effects-in-the-stenotic-murine-kidney-mediated-by-release-of-extracellular-vesicles
#3
Xiangyu Zou, Soon Hyo Kwon, Kai Jiang, Christopher M Ferguson, Amrutesh S Puranik, Xiangyang Zhu, Lilach O Lerman
To test the hypothesis that intrinsic renal scattered tubular cells (STC-like cells) contribute to repairing injured tubular epithelial cells (TEC) by releasing extracellular vesicle (EV). EV released from primary cultured pig STC-like cells were confirmed by electron microscopy. Antimycin-A (AMA)-induced injured proximal TEC (PK1 cells) were co-cultured with STC-like cells, STC-like cells-derived EV, or EV-free conditioned-medium for 3 days. Cellular injury, oxidative stress and mitochondrial function were assessed...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352008/incidence-predictors-and-clinical-outcomes-of-residual-stenosis-after-aortic-valve-in-valve
#4
Sabine Bleiziffer, Magdalena Erlebach, Matheus Simonato, Philippe Pibarot, John Webb, Lukas Capek, Stephan Windecker, Isaac George, Jan-Malte Sinning, Eric Horlick, Massimo Napodano, David M Holzhey, Petur Petursson, Alfredo Cerillo, Nikolaos Bonaros, Enrico Ferrari, Mauricio G Cohen, Giselle Baquero, Tara L Jones, Ankur Kalra, Michael J Reardon, Adnan Chhatriwalla, Vasco Gama Ribeiro, Sami Alnasser, Nicolas M Van Mieghem, Christian Jörg Rustenbach, Joachim Schofer, Santiago Garcia, Tobias Zeus, Didier Champagnac, Raffi Bekeredjian, Ran Kornowski, Rüdiger Lange, Danny Dvir
OBJECTIVE: We aimed to analyse the incidence of prosthesis-patient mismatch (PPM) and elevated gradients after aortic valve in valve (ViV), and to evaluate predictors and associations with clinical outcomes of this adverse event. METHODS: A total of 910 aortic ViV patients were investigated. Elevated residual gradients were defined as ≥20 mm Hg. PPM was identified based on the indexed effective orifice area (EOA), measured by echocardiography, and patient body mass index (BMI)...
January 19, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29352007/outcomes-in-anticoagulated-patients-with-atrial-fibrillation-and-with-mitral-or-aortic-valve-disease
#5
Dragos Vinereanu, Alice Wang, Hillary Mulder, Renato D Lopes, Petr Jansky, Basil S Lewis, Bernard J Gersh, Alvaro Avezum, Michael Hanna, Claes Held, Lars Wallentin, Christopher B Granger, John H Alexander
OBJECTIVE: To assess stroke/systemic embolism, major bleeding and other outcomes, and treatment effect of apixaban versus warfarin, in patients with atrial fibrillation (AF) and different types of valvular heart disease (VHD), using data from the Apixaban for Reduction in Stroke and Other Thromboembolic Events in Atrial Fibrillation trial. METHODS: There were 14 793 patients with known VHD status, categorised as having moderate or severe mitral regurgitation (MR) (n=3382), aortic regurgitation (AR) (n=842) or aortic stenosis (AS) (n=324); patients with moderate or severe mitral stenosis were excluded from the trial...
January 19, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29351748/a-comparative-study-of-three-conservative-treatments-in-patients-with-lumbar-spinal-stenosis-lumbar-spinal-stenosis-with-acupuncture-and-physical-therapy-study-lap-study
#6
Hiroyuki Oka, Ko Matsudaira, Yuichi Takano, Daichi Kasuya, Masaki Niiya, Juichi Tonosu, Masayoshi Fukushima, Yasushi Oshima, Tomoko Fujii, Sakae Tanaka, Hirohiko Inanami
BACKGROUND: Although the efficiency of conservative management for lumbar spinal stenosis (LSS) has been examined, different conservative management approaches have not been compared. We have performed the first comparative trial of three types of conservative management (medication with acetaminophen, exercise, and acupuncture) in Japanese patients with LSS. METHODS: Patients with L5 root radiculopathy associated with LSS who visited our hospital for surgical treatment were enrolled between December 2011 and January 2014...
January 19, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29351705/percutaneous-endoscopic-rendezvous-procedure-for-the-management-of-bile-duct-injuries-after-cholecystectomy-short-and-long-term-outcomes
#7
Anne Marthe Schreuder, Klaske A C Booij, Philip R de Reuver, Otto M van Delden, Krijn P van Lienden, Marc G Besselink, Olivier R Busch, Dirk J Gouma, Erik A J Rauws, Thomas M van Gulik
BACKGROUND:  Bile duct injury (BDI) remains a daunting complication of laparoscopic cholecystectomy. In patients with complex BDI, a percutaneous-endoscopic rendezvous procedure may be required to establish bile duct continuity. The aim of this study was to assess short- and long-term outcomes of the rendezvous procedure. METHODS:  All consecutive patients with BDI referred to our tertiary referral center between 1995 and 2016 were analyzed. A rendezvous procedure was performed when endoscopic or radiologic intervention failed, and when deemed feasible by a dedicated multidisciplinary team including hepatopancreaticobiliary surgeons, gastrointestinal endoscopists, and interventional radiologists...
January 19, 2018: Endoscopy
https://www.readbyqxmd.com/read/29351695/reasons-for-failure-of-systemic-to-pulmonary-artery-shunts-in-neonates
#8
Keti Vitanova, Cornelius Leopold, Jelena Pabst von Ohain, Cordula Wolf, Elisabeth Beran, Rüdiger Lange, Julie Cleuziou
BACKGROUND:  Systemic-to-pulmonary artery shunt placement is an established palliative procedure for congenital heart disease. Although it is thought to be a simple operation, it is associated with significant morbidity and mortality. METHODS:  Data for all neonates who underwent surgery for a systemic-to-pulmonary artery shunt between 2000 and 2016 were reviewed. The study endpoints were shunt failure and shunt-related mortality. Shunt failure was defined as a shunt dysfunction because of thrombosis or stenosis requiring intervention or reoperation; shunt mortality was defined as death because of a shunt dysfunction...
January 19, 2018: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/29351682/radial-artery-fascial-flow-through-free-flap-for-combined-revascularization-in-moyamoya-disease
#9
Jonathan Russin, Joseph Carey
BACKGROUND: Free flaps are commonly used by other surgical subspecialties for soft tissue reconstruction and revascularization. Cranial applications of these flaps have been limited to only a single case report. OBJECTIVE: To present a new technique for combined revascularization in moyamoya disease using a flow-through free flap. METHODS: Data were obtained from an Institutional Review Board-approved, prospectively maintained database with informed consent from the patient...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29351284/magnetic-resonance-angiography-with-compressed-sensing-an-evaluation-of-moyamoya-disease
#10
Takayuki Yamamoto, Tomohisa Okada, Yasutaka Fushimi, Akira Yamamoto, Koji Fujimoto, Sachi Okuchi, Hikaru Fukutomi, Jun C Takahashi, Takeshi Funaki, Susumu Miyamoto, Aurélien F Stalder, Yutaka Natsuaki, Peter Speier, Kaori Togashi
Compressed sensing (CS) reconstructions of under-sampled measurements generate missing data based on assumptions of image sparsity. Non-contrast time-of-flight MR angiography (TOF-MRA) is a good candidate for CS based acceleration, as MRA images feature bright trees of sparse vessels over a well-suppressed anatomical background signal. A short scan time derived from CS is beneficial for patients of moyamoya disease (MMD) because of the frequency of MR scans. The purpose of this study was to investigate the reliability of TOF-MRA with CS in the evaluation of MMD...
2018: PloS One
https://www.readbyqxmd.com/read/29351134/carotid-doppler-sonography-additional-tool-to-assess-hemodynamic-improvement-after-transcatheter-aortic-valve-implantation
#11
Valeria Cammalleri, Francesco Romeo, Massimo Marchei, Andrea Anceschi, Gianluca Massaro, Saverio Muscoli, Francesca De Persis, Massimiliano Macrini, Gian P Ussia
PURPOSE: The aim of our study was to assess the arterial cerebral blood flow variations in patients with aortic valve stenosis, immediately after the transcatheter aortic valve implantation (TAVI). METHODS: The study population includes 62 consecutive patients who underwent TAVI for aortic valve stenosis (95%) and sugical bioprosthesis degeneration (5%). Carotid Doppler examination was performed recording blood flow, systolic peak velocity, time average mean velocity and mean acceleration time at baseline, after balloon aortic valvuloplasty, and within 10 min after the device release...
January 17, 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29350392/diagnostic-and-prognostic-micro-rnas-in-ischemic-stroke-due-to-carotid-artery-stenosis-and-in-acute-coronary-syndrome-the-4-year-prospective-study
#12
Jacek Gacoń, Rafał Badacz, Ewa Stępień, Izabela Karch, Francisco J Enguita, Krzysztof Żmudka, Tadeusz Przewłocki, Anna Kabłak-Ziembicka
BACKGROUND: Circulating microRNAs (miRs) levels are potentially important diagnostic and prognostic biomarkers in acute coronary syndrome (ACS) or cerebral ischemic event (CIE) resulting from internal carotid artery stenosis (ICAS). AIM: This 4-year prospective study aimed to compare the levels of circulating miRs in ACS vs CIE patients, and investigate miRs potentially associated with risk of recurrent cardiovascular event. METHODS: The circulating miRs levels (miR-1-3p, miR-16-5p, miR-34a-5p, mir-122-5p, miR-124-3p, miR-133a-3p, miR-133b, miR-134-5p, miR-208b-3p, miR-375 and miR-499-5p) were compared in 43 (34M, 57...
January 19, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29350385/impact-of-previous-cardiac-surgery-with-sternotomy-on-clinical-outcomes-and-quality-of-life-after-transcatheter-aortic-valve-implantation-for-severe-aortic-stenosis
#13
Tomasz Tokarek, Artur Dziewierz, Maciej Bagienski, Lukasz Rzeszutko, Danuta Sorysz, Pawel Kleczynski, Dariusz Dudek
BACKGROUND: Transcatheter aortic valve implantation (TAVI) has evolved as effective treatment in patients with symptomatic severe aortic stenosis (AS) and increased operative risk. Data on the influence of previous sternotomy on the risk of TAVI are limited. AIM: We sought to investigate the impact of previous cardiac surgery with sternotomy on clinical outcomes and quality of life (QoL) after TAVI. METHODS: A total of 148 consecutive patients with symptomatic, severe AS who underwent TAVI were included...
January 19, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29350291/decompressive-surgery-for-lumbar-spinal-stenosis-across-the-atlantic-a-comparison-of-preoperative-mri-between-matched-cohorts-from-the-us-and-norway
#14
Amandeep Bhalla, Thomas D Cha, Clemens Weber, Ulf Nerland, Sasha Gulati, Greger Lønne
BACKGROUND: There are no uniform guidelines regarding when to operate for Lumbar Spinal Stenosis (LSS). As we apply findings from clinical research from one population to the next, elucidating similarities or differences provides important context for the validity of extrapolating clinical outcomes. The aim of this study was to compare the morphological severity of lumbar spinal stenosis on preoperative MRI in patients undergoing decompressive surgery in Boston, USA, and Trondheim, Norway...
January 19, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29350011/-treatment-of-ossification-of-ligamentum-flavum-complicated-with-lumbar-spinal-stenosis
#15
Xu Lan, Jie Gao, Jian-Zhong Xu, Xue-Mei Liu
OBJECTIVE: To investigate the imaging characteristic and operation outcome of ossification of ligamentum flavum with lumbar spinal stenosis. METHODS: January 2013 to January 2016, 9 patients with ossification of ligamentum flavum with lumbar spinal stenosis were treated, included 5 males and 4 females, aged from 51 to 63 years old with an average of 57 years old. All patients complained intermittent claudication and radiating pain at lower limb. The pathologic change regions examined by CT or MRI were as follows:2 cases in L₄,₅ and L₅S₁, 5 in L̀,̀, and 2 in L₅S₁...
February 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29350009/-etiological-analysis-preventional-and-therapeutical-strategies-for-the-unsatisfied-cervical-posterior-decompression-surgery
#16
De-An Qin, Xiao-Guang Liu, Feng-Liang Wu, Zhong-Jun Liu, Feng-Shan Zhang, Yu Sun
OBJECTIVE: To discuss the causes of unsatisfied cervical posterior decompression surgery and describe the overhauling strategies and precaution. METHODS: The clinical data of 14 patients required revision surgery were retrospectively analyzed, and these patients with unsatisfied effects were due to cervical posterior decompression surgery from January 2012 to December 2014. Overhauling reasons were analyzed and then different revision procedures were performed. The functions of cervical cord and ambulation were evaluated respectively by modified Japanese Orthopedic Association(mJOA) score and Nurick grade according to the course order:preoperative for the first time, pre-revision and at final follow-up...
February 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29350001/-analysis-of-complications-of-percutaneous-endoscopic-lumbar-discectomy
#17
Ke-Lun Huang, Hong-Lin Teng, Min-Yu Zhu, Jing Wang, Chi Li, Yu Wang
OBJECTIVE: To analyze the complications of lumbar intervertebral disc herniation treated with percutaneous endoscopic lumbar discectomy(PELD), and discuss how to avoid these complications. METHODS: The data of 132 patients with lumbar intervertebral disc herniation underwent PELD from October 2013 and June 2015 were retrospectively analyzed, including 85 males and 47 females with an average age of 42.9 years old. There were 6 cases of L₃,₄, 68 of L₄,₅ and 58 of L₅S₁...
February 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29349981/-clinical-results-in-early-and-mid-term-of-using-the-s-rom-femoral-stem-in-revision
#18
Shang Piao, Yong-Gang Zhou, Yin-Qiao Du, Hai-Yang Ma, Jing-Yang Sun, Zhi-Sen Gao, Ya-Wen Peng, Wen-Ming Wu
OBJECTIVE: To investigate and the clinical effect of S-ROM modular stem in femur reconstruction in hip revision arthroplasty. METHODS: From January 2008 to January 2016, 21 patients received revision hip arthroplasties using S-ROM stems. There were 5 males and 16 females with an average of 48.33 years old(range, 29 to 73 years old). There were 13 cases caused by aseptic loosening, 4 cases by infection, 2 cases by nonunion of sub-tuberosity osteotomy, 1 case for repeated dislocation, 1 case for traumatic great trochanter fracture...
April 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29349698/third-generation-dual-source-ct-enables-accurate-diagnosis-of-coronary-restenosis-in-all-size-stents-with-low-radiation-dose-and-preserved-image-quality
#19
Yuehua Li, Mengmeng Yu, Wenbin Li, Zhigang Lu, Meng Wei, Jiayin Zhang
OBJECTIVES: To investigate the diagnostic performance of low dose stent imaging in patients with large (≥ 3 mm) and small (< 3 mm) calibre stents by third-generation dual-source CT. METHODS: Symptomatic patients suspected of having in-stent restenosis (ISR) were prospectively enrolled. Coronary computed tomography angiography (CCTA) and invasive coronary angiography (ICA) were performed within 1 month for correlation. Binary ISR was defined as an in-stent neointimal proliferation with diameter stenosis ≥ 50%...
January 18, 2018: European Radiology
https://www.readbyqxmd.com/read/29349526/normal-pulmonary-artery-and-branch-pulmonary-artery-sizes-in-children
#20
S Bruce Greenberg, Sean M Lang, C Heath Gauss, Shelly Y Lensing, Sumera Ali, Karen A Lyons
To establish standards for pulmonary artery and branch pulmonary artery (PA and BPA) effective diameter (ED) and cross-sectional area (CSA) by using computed tomography (CT) data in children of a wide range of sizes and investigate the roundness of arteries. The ED (average of short and long axes) and CSA for the PA and BPA were measured using 1-mm collimation double-oblique reconstructions. Ordinary least squares regression was used to investigate models with various functional forms that related ED and CSA to patient size...
January 18, 2018: International Journal of Cardiovascular Imaging
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