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https://www.readbyqxmd.com/read/27914630/uterine-blood-flow-in-sheep-and-goats-during-the-peri-parturient-period-assessed-by-transrectal-doppler-sonography
#1
Mohammed Elmetwally, Heinrich Bollwein
The aim of the present study was to evaluate uterine blood flow (UBF) during the postpartum period in small ruminants. The study involved measures of UBF in 5 ewes and 5 goats during the first 4 weeks after parturition. Transrectal quantification of UBF was assessed by determining the diameter (DM), time averaged mean velocity (TAMEAN), blood flow volume (BFV), blood flow acceleration (ACCE) and pulsatility index (PI) in the uterine arteries ipsilateral to the previously gravid uterine horn(s) at Wk 20 of gestation and every 3days from the day of parturition (D 0) until Day 27 postpartum (D 27)...
November 25, 2016: Animal Reproduction Science
https://www.readbyqxmd.com/read/27909604/effects-of-head-position-on-cerebral-oxygenation-and-blood-flow-velocity-during-thyroidectomy
#2
Ayten Saraçoğlu, Demet Altun, Ayşen Yavru, Nihat Aksakal, İsmail Cem Sormaz, Emre Camcı
OBJECTIVE: Determining the blood flow through intra and extra-cranial arteries during neck extension may be helpful but is a controversial issue. We aimed to elucidate the changes in cerebral blood flow related to head positioning during thyroid surgery by carotid Doppler examination and regional oxygen saturation variations. METHODS: Thirty patients were recruited to the study. Patients were positioned with a final position of thyroidectomy consisting a 30° semi Fowler with the extension of neck and head...
October 2016: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/27899005/angle-%C3%AE-of-greater-than-80%C3%A2-at-the-start-of-spirometry-may-identify-high-quality-flow-volume-curves
#3
Ningfang Lian, Li Li, Weiying Ren, Zhilong Jiang, Lei Zhu
BACKGROUND AND OBJECTIVE: The American Thoracic Society (ATS) and European Respiratory Society (ERS) emphasize a satisfactory start in maximal expiratory flow-volume (MEFV) curves and highlight subjective parameters: performance without hesitation and expiration with maximum force. We described a new parameter, angle β for characterization of the start to the MEFV curve. METHODS: Subjects completed the MEFV curve at least three times and at least two curves met ATS/ERS quality...
November 29, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27882141/clinical-study-on-local-application-of-low-dose-insulin-for-promoting-wound-healing-after-operation-for-deep-burns
#4
Ming Zeng, Yan Zhi, Wenjun Liu, Wei Zhang, Jinxiong Xu
Transplanted free skin flaps are often needed to treat deep burns; their survival, however, is less than optimal. This study examined whether local low-dose insulin injections can promote flap survival and wound healing after surgery. A total of 165 patients who underwent free skin flap transplantation for simple deep burns were enrolled in the study and divided into 5 groups of 33 patients each: Blank control group (no local subcutaneous drug injections), saline control group (saline injections), low-dose insulin group (0...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27870825/evaluation-of-pediatric-liver-transplantation-related-artery-complications-using-intra-operative-multi-parameter-ultrasonography
#5
Xiuyun Ren, Junhui Guan, Nong Gao, Hong Niu, Jie Tang
BACKGROUND This article discusses the value of using multi-parameter evaluation of intra-operative ultrasonography in evaluating pediatric liver transplantation-related arterial complications. MATERIAL AND METHODS Sixty-eight children receiving a liver transplant underwent intraoperative ultrasonography for monitoring of artery hemodynamics. The ultrasonic measurement parameters included the diameters of the hepatic artery (HA) of the donor and anastomotic stoma, peak systolic velocity (PSV), resistance index (RI), acceleration time (SAT), and blood flow volume...
November 21, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27866455/changes-in-pulsatility-and-resistance-indices-of-cerebral-arteriovenous-malformation-feeder-arteries-after-embolization-and-surgery
#6
Sophia F Shakur, Sepideh Amin-Hanjani, Mohamed Abouelleil, Victor A Aletich, Fady T Charbel, Ali Alaraj
OBJECTIVES: Embolization reduces flow in cerebral arteriovenous malformations (AVMs) before surgical resection, but changes in pulsatility and resistance indices (PI, RI) are unknown. Here, we measure PI, RI in AVM arterial feeders before and after embolization/surgery. METHODS: Records of patients who underwent AVM embolization and surgical resection at our institution between 2007 and 2014 and had PI, RI, and flows obtained using quantitative magnetic resonance angiography were retrospectively reviewed...
November 21, 2016: Neurological Research
https://www.readbyqxmd.com/read/27798272/site-specific-elevation-of-interleukin-1%C3%AE-and-matrix-metalloproteinase-9-in-the-willis-circle-by-hemodynamic-changes-is-associated-with-rupture-in-a-novel-rat-cerebral-aneurysm-model
#7
Takeshi Miyamoto, David K Kung, Keiko T Kitazato, Kenji Yagi, Kenji Shimada, Yoshiteru Tada, Masaaki Korai, Yoshitaka Kurashiki, Tomoya Kinouchi, Yasuhisa Kanematsu, Junichiro Satomi, Tomoki Hashimoto, Shinji Nagahiro
The pathogenesis of subarachnoid hemorrhage remains unclear. No models of cerebral aneurysms elicited solely by surgical procedures and diet have been established. Elsewhere we reported that only few rats in our original rat aneurysm model manifested rupture at the anterior and posterior Willis circle and that many harbored unruptured aneurysms at the anterior cerebral artery-olfactory artery bifurcation. This suggests that rupture was site-specific. To test our hypothesis that a site-specific response to hemodynamic changes is associated with aneurysmal rupture, we modified our original aneurysm model by altering the hemodynamics...
October 26, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27782714/lung-surface-deformation-prediction-from-spirometry-measurement-and-chest-wall-surface-motion
#8
Joubin Nasehi Tehrani, Alistair McEwan, Jing Wang
PURPOSE: The authors have developed and evaluated a method to predict lung surface motion based on spirometry measurements, and chest and abdomen motion at selected locations. METHODS: A patient-specific 3D triangular surface mesh of the lung region was obtained at the end expiratory phase by the threshold-based segmentation method. Lung flow volume changes were recorded with a spirometer for each patient. A total of 192 selected points at a regular spacing of 2 × 2 cm matrix points were used to detect chest wall motion over a total area of 32 × 24 cm covering the chest and abdomen surfaces...
October 2016: Medical Physics
https://www.readbyqxmd.com/read/27756076/measurements-of-retinal-perfusion-using-laser-speckle-flowgraphy-and-doppler-optical-coherence-tomography
#9
Nikolaus Luft, Piotr A Wozniak, Gerold C Aschinger, Klemens Fondi, Ahmed M Bata, René M Werkmeister, Doreen Schmidl, Katarzyna J Witkowska, Matthias Bolz, Gerhard Garhöfer, Leopold Schmetterer
Purpose: This study evaluated the validity of retinal perfusion measurements using laser speckle flowgraphy (LSFG) by means of in vitro experiments and direct comparison with dual-beam Doppler optical coherence tomography (D-OCT) in a healthy Caucasian population. Methods: The flow velocity of scattering solution pumped through a glass capillary was measured at 17 different flow velocities (range, 0.5-47 mm/s) using LSFG. The flow within the glass capillary was produced by a computer-controlled infusion pump...
October 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27716892/duplex-ultrasound-for-the-prediction-of-vascular-events-associated-with-arteriovenous-fistulas-in-hemodialysis-patients
#10
Takeo Ishii, Yasunobu Suzuki, Takuji Nakayama, Miki Ohmori, Shinichi Masai, Naru Sasagawa, Kunio Ohyama
OBJECTIVE: To determine if duplex ultrasound (US) for arteriovenous fistulas (AVFs) can predict vascular events (VEs; thrombosis and stenosis). METHODS: Duplex US was performed for vascular access evaluation in 2557 maintenance hemodialysis (HD) patients between October 1, 2013 and March 31, 2016. Of these patients, 2184 patients were finally included in this study. AVF dysfunction was assessed using the brachial artery blood flow volume (Qa; mL/min), arterial blood flow resistance index (RI), and residual diameter of the fistula vein (RD; mm)...
September 27, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27703060/quantitative-assessment-of-parent-vessel-and-distal-intracranial-hemodynamics-following-pipeline-flow-diversion
#11
Sophia F Shakur, Victor A Aletich, Sepideh Amin-Hanjani, Ahmed E Hussein, Fady T Charbel, Ali Alaraj
BACKGROUND: Pipeline embolization devices (PEDs) are commonly used for endovascular treatment of cerebral aneurysms but can be associated with delayed ipsilateral intraparenchymal hemorrhage. Although intra-aneurysmal hemodynamic changes have been studied, parent vessel and intracranial hemodynamics after PED use are unknown. We examine the impact of flow diversion on parent artery and distal intracranial hemodynamics. METHOD: Patients with internal carotid cerebral aneurysms treated with PED who had flow volume rate, flow velocities, pulsatility index, resistance index, Lindegaard ratio, and wall shear stress (WSS) obtained after treatment using quantitative magnetic resonance angiography were reviewed...
October 4, 2016: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27699852/true-morphology-of-mitral-regurgitant-flow-assessed-by-three-dimensional-transesophageal-echocardiography
#12
Martin Lombardero, Ruth Henquin, Gabriel Perea, Mariana Corneli, Carlos Izurieta
INTRODUCTION: Quantification of mitral regurgitation (MR) by two-dimensional (2D) transthoracic echocardiography (TTE) is based on the analysis of the proximal flow convergence (PFC) and the "vena contracta" (VC). This method assumes geometries and can be misleading. In contrast, three-dimensional (3D) echocardiography directly measures flow volumes and does not assume geometries, which allows for more accurate MR evaluation. AIMS: To report the 3D transesophageal echocardiography (3DTEE) feasibility for MR quantification and evaluate its concordance with 2D echo...
October 4, 2016: Echocardiography
https://www.readbyqxmd.com/read/27692152/respiratory-pattern-in-a-fshd-pediatric-population
#13
Federica Trucco, Marina Pedemonte, Chiara Fiorillo, Paola Tacchetti, Giacomo Brisca, Claudio Bruno, Carlo Minetti
Facioscapulohumeral muscular dystrophy (FSHD) is an autosomal dominant inherited disorder characterized by selective weakness of face and upper arms and girdle. Respiratory involvement in FSHD has been described mainly in the most severely affected patients. In this work we tested the respiratory function by spirometry in 12 patients affected by FSHD with onset before 18 years. Spirometry results were correlated with motor involvement and compared to aged matched group of Becker patients. Of note FSHD patients present a peculiar pattern characterized by a flat shape in flow-volume loop...
October 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27669543/impact-of-vascular-access-intervention-therapy-on-cardiac-load-in-hemodialysis-patients
#14
Takayuki Adachi, Tsutomu Sakurada, Takanori Otowa, Keita Uehara, Shina Sueki, Shigeki Kojima, Nagayuki Kaneshiro, Katsuomi Matsui, Tadahisa Tomohiro, Yugo Shibagaki
Vascular access intervention therapy (VAIVT) has been positioned as the first choice of treatment for stenosis lesions frequently observed in arteriovenous fistula (AVF) for hemodialysis patients in Japan. Furthermore, increased blood flow can provide a stable dialysis. In contrast, it has been reported that excess blood flow of AVF causes high-output heart failure. Although VAIVT is used to increase blood flow of AVF, the impact of VAIVT on cardiac load has been rarely reported. We examined the factors associated with cardiac load in hemodialysis patients undergoing VAIVT by measuring levels of α human atrial natriuretic polypeptide (hANP) and brain natriuretic peptide (BNP) before and after VAIVT...
October 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27663097/-standardisation-and-validation-of-an-hplc-method-for-determining-serum-posaconazole-levels-in-colombia
#15
Diego H Cáceres, Juan David Zapata, Sinar D Granada, Luz E Cano, Tonny W Naranjo
BACKGROUND: Colombia currently does not have a specialised service for measuring antifungal levels in serum, which is of prime importance for the proper treatment and correct management of invasive fungal infections. AIMS: To standardise and validate a simple, sensitive, and specific protocol, based on high performance liquid chromatography, complying with the parameters recommended by the Food and Drug Administration, to detect, identify, and quantify serum concentrations of posaconazole...
September 20, 2016: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/27632860/upper-extremity-blood-flow-volume-is-strongly-correlated-with-grip-strength-while-in-a-provocative-shoulder-position-among-baseball-pitchers
#16
Kevin Laudner, Jose Vazquez, Noelle Selkow, Keith Meister
CONTEXT: Baseball players, specifically pitchers, with symptomatic neurovascular occlusion often initially complain of arm fatigue, loss of ball control, and velocity. As the compression continues complaints may manifest into dull pain, paresthesia, and decreased grip strength. OBJECTIVE: To determine the correlation between upper extremity blood flow volume and grip strength among baseball pitchers. DESIGN: cross-sectional. SETTING: Athletic training room...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27624002/allergy-specific-phenome-wide-association-study-for-immunogenes-in-turkish-children
#17
Sefayet Karaca, Ersoy Civelek, Mehmet Karaca, Umit M Sahiner, Riza K Ozgul, Can N Kocabas, Renato Polimanti, Bülent E Sekerel
To dissect the role of immunogenetics in allergy and asthma, we performed a phenome-wide association study in 974 Turkish children selected from a cross-sectional study conducted using ISAAC (International Study of Asthma and Allergies in Children) Phase II tools. We investigated 9 loci involved in different immune functions (ADAM33, ADRB2, CD14, IL13, IL4, IL4R, MS4A2, SERPINE1, and TNF) with respect to 116 traits assessed through blood tests, hypertonic saline challenge tests, questionnaires, and skin prick tests...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27621904/evaluation-of-airway-resistance-in-primary-small-cell-carcinoma-of-the-trachea-by-mostgraph-a-case-study
#18
Eri Hagiwara, Yasuhiro Gon, Kentaro Hayashi, Mai Takahashi, Yuko Iida, Hisato Hiranuma, Yoshiko Nakagawa, Tsukasa Hataoka, Kenji Mizumura, Shuichiro Maruoka, Tetsuo Shimizu, Noriaki Takahashi, Shu Hashimoto
The case subject was a 58-year-old woman who presented to our hospital with a chief complaint of respiratory discomfort. Wheezing could be heard in both lungs; treatment was initiated with inhaled steroids for suspected bronchial asthma. However, 1 week later, the respiratory discomfort had not improved and the wheezing sound had progressed to the neck area. Upper airway obstruction was suspected; therefore, chest computed tomography (CT) was performed, revealing tracheal stenosis caused by a tumor in the upper airway...
August 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27595365/relationship-of-pulsatility-and-resistance-indices-to-cerebral-arteriovenous-malformation-angioarchitectural-features-and-hemorrhage
#19
Sophia F Shakur, Sepideh Amin-Hanjani, Hassan Mostafa, Victor A Aletich, Fady T Charbel, Ali Alaraj
The role that hemodynamics plays in the pathophysiology of cerebral arteriovenous malformation (AVM) hemorrhage remains unclear. Here, we examine the relationship of pulsatility and resistance indices to AVM angioarchitectural features and hemorrhage. Records of patients with cerebral AVMs evaluated at our institution between 2007-2014 and with flows obtained before treatment using quantitative magnetic resonance angiography (QMRA) were retrospectively reviewed. Flow volume rate and flow velocity were measured in primary arterial feeders and compared to their contralateral counterparts...
November 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27590567/effect-of-radiofrequency-endometrial-ablation-on-dysmenorrhea
#20
Sabrina N Wyatt, Taylor Banahan, Ying Tang, Kavita Nadendla, Jeff M Szychowski, Todd R Jenkins
STUDY OBJECTIVE: To examine rates of dysmenorrhea after radiofrequency endometrial ablation in patients with and without known dysmenorrhea symptoms prior to the procedure in a diverse population. DESIGN: Retrospective Cohort study; DESIGN: Classification: Retrospective Cohort Study (Canadian Task Force Classification II-2); SETTING: Academic gynecology practice PATIENTS: 307 women underwent endometrial ablation from 2007 to 2013 at our institution. Patients who had preoperative and postoperative pain symptom assessments recorded as well as a description of pain timing were included...
August 30, 2016: Journal of Minimally Invasive Gynecology
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