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Walking and vascular function

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https://www.readbyqxmd.com/read/28604553/flow-through-free-fibula-osteocutaneous-flap-in-reconstruction-of-tibial-bone-soft-tissue-and-main-artery-segmental-defects
#1
Zonghuan Li, Aixi Yu, Baiwen Qi, Zhenyu Pan, Junhui Ding
OBJECTIVE: The aim of this report was to present the use of flow-through free fibula osteocutaneous flap for the repair of complex tibial bone, soft tissue, and main artery segmental defects. PATIENTS AND METHODS: Five patients with bone, soft tissue, and segmental anterior tibial artery defects were included. The lengths of injured tibial bones ranged from 4 to 7 cm. The sizes of impaired soft tissues were between 9 × 4 and 15 × 6 cm. The lengths of defect of anterior tibial artery segments ranged from 6 to 10 cm...
June 9, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28597771/first-in-child-use-of-the-oral-selective-prostacyclin-ip-receptor-agonist-selexipag-in-pulmonary-arterial-hypertension
#2
Lianne M Geerdink, Harald Bertram, Georg Hansmann
Pulmonary arterial hypertension (PAH) is a complex disease with a poor prognosis. Selexipag is a selective prostacyclin receptor agonist with vasodilatory, anti-proliferative, anti-inflammatory, and pro-angiogenic properties. However, no clinical data on its therapeutic use in children with PAH are currently available. Here, we report the case of a 12-year-old girl who presented in World Health Organization (WHO) functional class III and right ventricular (RV) failure with recurrent syncope, dizziness, and progressive fatigue for two years...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28597751/the-modified-borg-dyspnea-scale-does-not-predict-hospitalization-in-pulmonary-arterial-hypertension
#3
Debasree Banerjee, Jane Kamuren, Grayson L Baird, Amy Palmisciano, Ipsita Krishnan, Mary Whittenhall, James R Klinger, Corey E Ventetuolo
Background Breathlessness is the most common symptom reported by patients with pulmonary arterial hypertension (PAH). The Modified Borg Dyspnea Scale (MBS) is routinely obtained during the six-minute walk test in the assessment of PAH patients, but it is not known whether the MBS predicts clinical outcomes such as hospitalizations in PAH. Methods We performed a retrospective study of World Health Organization (WHO) Group 1 PAH patients followed at our center. The dates of the first three MBS and hospitalizations that occurred within three months of a documented MBS were collected...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28596435/balloon-pulmonary-angioplasty-for-inoperable-patients-with-chronic-thromboembolic-pulmonary-hypertension-the-initial-german-experience
#4
Karen M Olsson, Christoph B Wiedenroth, Jan-Christopher Kamp, Andreas Breithecker, Jan Fuge, Gabriele A Krombach, Moritz Haas, Christian Hamm, Thorsten Kramm, Stefan Guth, Hossein Ardeschir Ghofrani, Jan B Hinrichs, Serghei Cebotari, Katrin Meyer, Marius M Hoeper, Eckhard Mayer, Christoph Liebetrau, Bernhard C Meyer
Balloon pulmonary angioplasty (BPA) is an emerging treatment for patients with inoperable chronic thromboembolic pulmonary hypertension (CTEPH).We report on a prospective series of 56 consecutive patients who underwent 266 BPA interventions (median, five per patient) at two German institutions. All patients underwent a comprehensive diagnostic work-up including right heart catheterisation at baseline and 24 weeks after their last intervention.BPA resulted in improvements in WHO functional class, 6 min walk distance (mean change, +33 m), right ventricular function and haemodynamics, including a decline in mean pulmonary artery pressure by 18% and in pulmonary vascular resistance by 26%...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28591785/results-from-more-than-20%C3%A2-years-of-surgical-pulmonary-endarterectomy-for-chronic-thromboembolic-pulmonary-hypertension-in-denmark
#5
Kasper Korsholm, Asger Andersen, Søren Mellemkjær, Dorthe Viemose Nielsen, Kaj Erik Klaaborg, Lars Bo Ilkjær, Jens Erik Nielsen-Kudsk
OBJECTIVES: Chronic thromboembolic pulmonary hypertension is a fatal disease if left untreated, and pulmonary endarterectomy (PEA) is the potentially curable treatment of choice. We aimed to estimate the current in-hospital mortality rate, complication rate and long-term survival for patients with chronic thromboembolic pulmonary hypertension undergoing PEA in Denmark. METHODS: All chronic thromboembolic pulmonary hypertension patients who underwent PEA in the period 1994 till 2016 were consecutively enrolled in our single-centre study...
June 7, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28565771/erythropoietin-facilitates-the-recruitment-of-bone-marrow-mesenchymal-stem-cells-to-sites-of-spinal-cord-injury
#6
Jun Li, Weichun Guo, Min Xiong, Shuangjie Zhang, Heng Han, Jie Chen, Dan Mao, Hualong Yu, Yun Zeng
Despite the successes of bone marrow mesenchymal stem cell (BMSC) transplantation for the treatment of spinal cord injuries, only a small fraction of grafted cells migrate to the target areas. Therefore, there remains a need for more efficient strategies of BMSC delivery. The present study was designed to explore this. Rat models of spinal cord injury (SCI) were established and exposed to phosphate buffered saline (control), BMSCs or BMSCs + erythropoietin (EPO). Basso, Beattie and Bresnahan (BBB) locomotor scale and grid walk tests were then utilized to estimate neurological rehabilitation...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28542926/effect-of-spironolactone-on-exercise-tolerance-and-arterial-function-in-older-adults-with-heart-failure-with-preserved-ejection-fraction
#7
Bharathi Upadhya, William G Hundley, Peter H Brubaker, Timothy M Morgan, Kathryn P Stewart, Dalane W Kitzman
OBJECTIVES: To evaluate the effects of an aldosterone antagonist on exercise intolerance in older adults with heart failure and preserved ejection fraction (HFpEF). DESIGN: Randomized, placebo-controlled, double-blind trial. SETTING: Academic medical center, Winston-Salem, North Carolina. PARTICIPANTS: Older adults (N = 80, aged 71 ± 1; 80% female) with stable compensated HFpEF and controlled blood pressure (BP)...
May 19, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28528258/epidemiology-and-management-of-chronic-thromboembolic-pulmonary-hypertension-experience-from-two-expert-centers
#8
Maria Anna Bazmpani, Alexandra Arvanitaki, Maria Toumpourleka, Georgia Pitsiou, Evaggelia Panagiotidou, Sophia Anastasia Mouratoglou, Georgios Sianos, Stavros Hadjimiltiades, Antonios Pitsis, Eckhard Mayer, Ioannis Stanopoulos, Haralambos Karvounis, George Giannakoulas
BACKGROUND: Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare, distinct pulmonary vascular disease, and, therefore, there is lack of data regarding its clinical presentation, diagnosis and management at a national basis. Our objective was to describe the demographics and management of CTEPH patients in Northern Greece. METHODS: We conducted a retrospective, observational study with a joint collaboration from two pulmonary hypertension expert centers in Greece and included patients diagnosed with CTEPH...
May 17, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28514116/changes-in-main-pulmonary-artery-diameter-during-follow-up-have-prognostic-implications-in-pulmonary-arterial-hypertension
#9
Adriano R Tonelli, Scott Johnson, Laith Alkukhun, Ruchi Yadav, Raed A Dweik
BACKGROUND AND OBJECTIVE: A dilated pulmonary artery (PA) is a common finding in patients with pulmonary arterial hypertension (PAH). Little is known on the variations in PA size over time and whether these changes track with disease severity and/or predict long-term survival. METHODS: We included patients with PAH who had at least two computed tomography (CT) scans of the chest done on different visits. Both scans matched the use of i.v. contrast. RESULTS: Pairs of CT scans were compared in 113 PAH patients...
May 17, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28473128/transcatheter-aortic-valve-implantation-within-degenerated-aortic-surgical-bioprostheses-partner-2-valve-in-valve-registry
#10
John G Webb, Michael J Mack, Jonathon M White, Danny Dvir, Philipp Blanke, Howard C Herrmann, Jonathon Leipsic, Susheel K Kodali, Raj Makkar, D Craig Miller, Philippe Pibarot, Augusto Pichard, Lowell F Satler, Lars Svensson, Maria C Alu, Rakesh M Suri, Martin B Leon
BACKGROUND: Early experience with transcatheter aortic valve replacement (TAVR) within failed bioprosthetic surgical aortic valves has shown that valve-in-valve (VIV) TAVR is a feasible therapeutic option with acceptable acute procedural results. OBJECTIVES: The authors examined 30-day and 1-year outcomes in a large cohort of high-risk patients undergoing VIV TAVR. METHODS: Patients with symptomatic degeneration of surgical aortic bioprostheses at high risk (≥50% major morbidity or mortality) for reoperative surgery were prospectively enrolled in the multicenter PARTNER (Placement of Aortic Transcatheter Valves) 2 VIV trial and continued access registries...
May 9, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28442357/dl-3-n-butylphthalide-promotes-neuroplasticity-and-motor-recovery-in-stroke-rats
#11
Yefei Sun, Xi Cheng, Huibin Wang, Xiaopeng Mu, Yifan Liang, YuJia Luo, Huiling Qu, Chuansheng Zhao
BACKGROUNDS AND AIMS: Racemic l-3-n-butylphthalide (dl-NBP), is able to achieve a functional recovery in animal models of cerebral ischemia, vascular dementia, and Alzheimer's disease. In this study, we investigated the effect of dl-NBP on axonal growth, neurogenesis and behavioral performances in rats with cerebral ischemia. METHODS: Focal cerebral ischemia in rats was produced by intracerebral injection of endothelin-1. Starting from postoperative day 7, the experimental rats were administered 70mg/kg dl-NBP by oral gavage for two weeks...
June 30, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28425226/a-review-of-pediatric-pulmonary-hypertension-with-new-guidelines
#12
Serdar Kula, Ayhan Pektaş
This study aims to review pediatric pulmonary hypertension (PH) by comparing the guidelines of the European Society of Cardiology (ESC)/European Respiratory Society (ERS), the American Heart Association (AHA)/American Thoracic Society (ATS), and the European Pediatric Pulmonary Vascular Disease Network (EPPVDN). All three sets of guidelines define PH as having a mean pulmonary artery pressure of ≥25 mmHg and accept the validity of the World Health Organization (WHO) classification system. Every child with a high index of suspicion for PH should undergo an initial work-up of chest X-rays, electrocardiography, and echocardiography...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424851/vascularized-fibular-medialization-for-reconstruction-of-the-tibial-defects-following-tumour-excision
#13
Abed El-Negery, Nabil Ahmed Elmoghazy, Mohamed Serry Abd-Ellatif, Adham Elgeidi
PURPOSE: The purpose of this study was to evaluate the functional and oncologic results of fibular medialization when used alone as a single-stage reconstructive technique after wide excision of malignant tumours of the proximal, middle, or distal tibia. METHODS: Between December 2010 and May 2015, 14 patients (six males and eight females) with primary malignant tumours of the tibia (eight proximal, four diaphyseal, two distal) were treated by wide excision. The mean age of the patients at the time of surgery was 23...
April 19, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28420826/efficacy-and-safety-of-an-orally-administered-selective-prostacyclin-receptor-agonist-selexipag-in-japanese-patients-with-pulmonary-arterial-hypertension
#14
Nobuhiro Tanabe, Satoshi Ikeda, Nobuhiro Tahara, Keiichi Fukuda, Masaru Hatano, Hiroshi Ito, Tomotaka Nakayama, Toshihisa Anzai, Akiyoshi Hashimoto, Teruo Inoue, Kouji Kajinami, Yasuki Kihara, Hideyuki Kinoshita, Koichiro Kuwahara, Toyoaki Murohara, Osamu Okazaki, Satoshi Sakai, Toru Satoh, Yutaka Takeda, Yasuchika Takeishi, Mitsugu Taniguchi, Hiroshi Watanabe, Takeshi Yamamoto, Keiko Yamauchi-Takihara, Koichiro Yoshioka, Shigetake Sasayama
BACKGROUND: Selexipag is an orally available prostacyclin receptor (IP receptor) agonist with a non-prostanoid structure. In this open-label Phase II trial, the efficacy and safety of selexipag in Japanese patients with pulmonary arterial hypertension (PAH) is examined.Methods and Results:Selexipag was administered at 200 μg twice daily and titrated up to 1,600 μg by increments of 200 μg in 37 subjects to reach the individual maximum tolerated dose. At 16 weeks, in 33 patients comprising the per-protocol set, the pulmonary vascular resistance (PVR; primary endpoint) decreased from 683...
April 18, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28410504/exercise-training-in-older-adults-what-effects-on-muscle-oxygenation-a-systematic-review
#15
REVIEW
Elie Fiogbé, Verena de Vassimon-Barroso, Anielle Cristhine de Medeiros Takahashi
AIM: To determine the effects of different modality of exercise training programs on muscle oxygenation in older adults. METHODS: Relevant articles were searched in PubMed, Web of Science, Science Direct and Scopus, using the keywords: "Aged" AND "Muscle oxygenation" AND (Exercise OR "Exercise therapy" OR "Exercise Movement Techniques" OR Hydrotherapy), without limitation concerning the publication date. To be included in the full analysis, the study had to be a randomized controlled trial in which older adults participants (mean age: 65 years at least) were submitted to an exercise-training program and muscle oxygenation assessment...
March 20, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28403379/effect-of-resveratrol-on-walking-performance-in-older-people-with-peripheral-artery-disease-the-restore-randomized-clinical-trial
#16
Mary M McDermott, Christiaan Leeuwenburgh, Jack M Guralnik, Lu Tian, Robert Sufit, Lihui Zhao, Michael H Criqui, Melina R Kibbe, James H Stein, Donald Lloyd-Jones, Stephen D Anton, Tamar S Polonsky, Ying Gao, Rafael de Cabo, Luigi Ferrucci
Importance: Research shows that resveratrol, a sirtuin activator in red wine, improves exercise endurance and skeletal-muscle oxidative metabolism in animals and may enhance vascular function in humans. Resveratrol supplement sales exceed $30 million annually in the United States, but few data are available regarding its efficacy in humans. Objective: To determine whether resveratrol, 125 mg/d or 500 mg/d, improves the 6-minute walk performance in patients with peripheral artery disease (PAD)...
April 12, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28389218/walking-training-at-the-heart-rate-of-pain-threshold-improves-cardiovascular-function-and-autonomic-regulation-in-intermittent-claudication-a-randomized-controlled-trial
#17
Marcel Chehuen, Gabriel G Cucato, Celso Ricardo F Carvalho, Raphael M Ritti-Dias, Nelson Wolosker, Anthony S Leicht, Cláudia Lúcia M Forjaz
OBJECTIVES: This study investigated the effects of walking training (WT) on cardiovascular function and autonomic regulation in patents with intermittent claudication (IC). DESIGN: Randomized controlled trial. METHODS: Forty-two male patients with IC (≥50years) were randomly allocated into two groups: control (CG, n=20, 30min of stretching exercises) and WT (WTG, n=22, 15 bouts of 2min of walking interpolated by 2min of upright rest-walking intensity was set at the heart rate of pain threshold)...
March 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28371741/carotid-flow-pulsatility-is-higher-in-women-with-greater-decrement-in-gait-speed-during-multi-tasking
#18
Joaquin U Gonzales, C Roger James, Hyung Suk Yang, Daniel Jensen, Lee Atkins, Kareem Al-Khalil, Michael O'Boyle
AIM: Central arterial hemodynamics is associated with cognitive impairment. Reductions in gait speed during walking while performing concurrent tasks known as dual-tasking (DT) or multi-tasking (MT) is thought to reflect the cognitive cost that exceeds neural capacity to share resources. We hypothesized that central vascular function would associate with decrements in gait speed during DT or MT. METHODS: Gait speed was measured using a motion capture system in 56 women (30-80y) without mild-cognitive impairment...
March 24, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28367083/proteomics-analysis-to-identify-and-characterize-the-biomarkers-and-physical-activities-of-non-frail-and-frail-older-adults
#19
Ching-Hung Lin, Chen-Chung Liao, Chi-Huang Huang, Yu-Tang Tung, Huan-Cheng Chang, Mei-Chich Hsu, Chi-Chang Huang
Globally, the proportion of older adults is increasing. Older people face chronic conditions such as sarcopenia and functional decline, which are often associated with disability and frailty. Proteomics assay of potential serum biomarkers of frailty in older adults. Older adults were divided into non-frail and frail groups (n = 6 each; 3 males in each group) in accordance with the Chinese-Canadian Study of Health and Aging Clinical Frailty Scale. Adults were measured for grip power and the 6-min walk test for physical activity, and venous blood was sampled after adults fasted for 8 h...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28340403/micro-and-macrovascular-function-in-children-with-sickle-cell-anaemia-and-sickle-cell-haemoglobin-c-disease
#20
Berenike Möckesch, Keyne Charlot, Stéphane Jumet, Marc Romana, Lydia Divialle-Doumdo, Marie-Dominique Hardy-Dessources, Marie Petras, Benoît Tressieres, Vanessa Tarer, Olivier Hue, Maryse Etienne-Julan, Philippe Connes, Sophie Antoine-Jonville
It is unclear whether vascular function is affected similarly in children with sickle cell anaemia (SS) and children with sickle haemoglobin C (SC) disease. Therefore, we compared micro and macrovascular functions in healthy (AA) children, children with SS and SC disease, and assessed their association with physical activity. Participants (24 SS, 22 SC and 16 AA), were compared in terms of 1) thermal hyperaemic response (finger pad warming to 42°C) measured by Laser Doppler techniques, 2) arterial stiffness determined by pulse wave velocity, 3) daily energy expenditure related to moderate and intense physical activities estimated by questionnaire and 4) fitness level, evaluated by the six-minute walk test...
February 4, 2017: Blood Cells, Molecules & Diseases
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