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https://www.readbyqxmd.com/read/28239753/six-minute-walk-test-in-evaluation-of-children-with-pulmonary-arterial-hypertension
#1
Malgorzata Zuk, Anna Migdal, Dorota Jagiellowicz-Kowalska, Katarzyna Mazurkiewicz, Anna Sadel-Wieczorek, Grazyna Brzezinska-Rajszys
Six-minute walk test (6MWT) is a submaximal exercise test applied for evaluation of adults with pulmonary arterial hypertension (PAH). It was widely used as an endpoint in the clinical trials. The aim of the study was to assess the usefulness of 6MWT in management of children with PAH and to establish correlations with other clinical features. 164 6MWT were performed in 15 children between 5 and 18 years with PAH confirmed by right heart catheterization (102 in patients with shunt, 62 without shunt). Distance in 6MWT (6MWD)-% of predicted for age and gender, desaturation at the maximum effort, peak heart rate (HR)-% of maximal HR, were compared to the level of NTproBNP, WHO-FC, echocardiography parameters, and events of PAH treatment intensification...
February 27, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28239335/central-and-peripheral-effects-of-urotensin-ii-and-urotensin-ii-related-peptides-on-cardiac-baroreflex-sensitivity-in-trout
#2
Frédéric Lancien, Gilmer Vanegas, Jérôme Leprince, Hubert Vaudry, Jean-Claude Le Mével
The baroreflex response is an essential component of the cardiovascular regulation that buffers abrupt changes in blood pressure to maintain homeostasis. Urotensin II (UII) and its receptor UT are present in the brain and in peripheral cardiovascular tissues of fish and mammals. Intracerebroventricular (ICV) injection of UII in these vertebrates provokes hypertension and tachycardia, suggesting that the cardio-inhibitory baroreflex response is impaired. Since nothing is known about the effect of UII on the cardiac baroreflex sensitivity (BRS), we decided to clarify the changes in spontaneous BRS using a cross spectral analysis technique of systolic blood pressure (SBP) and R-R interval variabilities after ICV and intra-arterial (IA) injections of trout UII in the unanesthetized trout...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28238769/effects-of-raloxifene-on-portal-hypertension-and-hepatic-encephalopathy-in-cirrhotic-rats
#3
Ching-Chih Chang, Wen-Shin Lee, Chiao-Lin Chuang, I-Fang Hsin, Shao-Jung Hsu, Ting Chang, Hui-Chun Huang, Fa-Yauh Lee, Shou-Dong Lee
Raloxifene, a selective estrogen receptor modulator, has been used extensively for osteoporosis. In addition to the effect of osteoporosis treatment, emerging evidences show that raloxifene affects the vascular function in different tissues. Cirrhosis is characterized with portal hypertension and complicated with hepatic encephalopathy. Portal hypertension affects portal-systemic shunt which leads to hepatic encephalopathy that the vascular modulation might influence severity of hepatic encephalopathy. Herein, we evaluated the impact of raloxifene on bile duct ligation (BDL)-induced cirrhotic rats...
February 23, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28238630/primate-response-to-angiotensin-infusion-and-high-sodium-intake-differ-by-sodium-lithium-countertransport-phenotype
#4
Kimberly D Spradling-Reeves, Robert E Shade, Joseph R Haywood, Laura A Cox
An increased level of sodium-lithium countertransport (SLC) activity has been associated with salt-sensitive hypertension. Previous findings have suggested that dysregulation of the renin-angiotensin-aldosterone system (RAAS) may be involved in the mechanism linking elevated SLC activity and hypertension. Therefore, baboons with different levels of SLC activity were given two diets differing in sodium content, with and without an angiotensin II (ANG II) infusion, to investigate the relationship between SLC activity, the RAAS, and physiological regulation by sodium...
February 3, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28238629/apolipoprotein-a1-rs5070-a-g-polymorphism-with-stroke-subtypes-in-taiwan
#5
Li-Chi Hsu, Tsong-Hai Lee
BACKGROUND: Apolipoprotein A1 (ApoA1) is a structural protein of high-density lipoprotein cholesterol; ApoA1 is involved in lipid and cholesterol metabolism. This study evaluated the association of ApoA1 polymorphism (rs5070) with different stroke subtypes in Taiwanese individuals. METHODS: A total of 2139 cases, including 614 controls and 708 large artery atherosclerosis (LAA), 377 small-vessel occlusion, and 440 hypertensive intracranial hemorrhage cases, were enrolled in this study...
February 23, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28238543/comparison-of-auscultatory-and-oscillometric-bp-readings-in-children-with-obesity-and-the-effect-on-diagnosing-arterial-hypertension
#6
Salvador Fonseca-Reyes, Enrique Romero-Velarde, Edith Torres-Gudiño, Daniel Illescas-Zarate, Avril M Forsyth-MacQuarrie
OBJECTIVE: The level of agreement between two blood pressure (BP) reading methods, auscultatory vs oscillometric, was examined using a mercury sphygmomanometer and an electronic device in children and adolescents with different levels of obesity. The readings were compared to see their impact on the diagnosis of pre-hypertension/hypertension. METHODS: Blood pressure readings were taken in children with obesity (body mass index ≥ 95th percentile) and severe obesity (≥120% 95th percentile)...
February 23, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/28238241/mitral-patient-prosthesis-mismatch-predicts-suboptimal-hemodynamic-recovery-after-mitral-valve-replacement
#7
Sertan Ozyalcin, Kerem M Vural, Ayse Colak
BACKGROUND: A possible relationship between an obstructive prosthesis and suboptimal hemodynamic recovery, as reflected by unsatisfactory regression in systolic pulmonary artery pressure (sPAP) and functional tricuspid regurgitation (FTR) following mitral valve replacement (MVR), was investigated. A delineating effective orifice area index (EOAI) value was sought in order to define a patient-prosthesis mismatch. METHODS: A total of 128 patients undergoing isolated mechanical MVR were followed up for a mean of 46 ± 9 months...
September 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28238233/cardiac-fibrosis-in-aortic-stenosis-and-hypertensive-heart-disease-assessed-by-magnetic-resonance-t1-mapping
#8
Florian von Knobelsdorff-Brenkenhoff, Anna-Katharina Mueller, Marcel Prothmann, Pierre Hennig, Matthias A Dieringer, Luisa Schmacht, Andreas Greiser, Jeanette Schulz-Menger
BACKGROUND: Continuous pressure overload may lead to subclinical myocardial tissue changes in patients with hypertensive heart disease (HHD) and aortic stenosis (AS). The study aim was to detect interstitial fibrosis using quantitative cardiovascular magnetic resonance. METHODS: Fifteen patients with HHD (arterial hypertension + septal wall thickness ≥13 mm), 33 with AS (eight mild, 15 moderate, 10 severe), and 60 healthy controls were enrolled. Native T1 maps (modified Look-Locker inversion recovery) were obtained in a basal, mid-ventricular, and apical shortaxis slice of the left ventricle to assess cardiac fibrosis...
September 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28237611/abnormal-pregnancy-outcome-associated-with-high-dose-maternal-tranylcypromine-therapy-case-report-and-literature-review
#9
Debra Kennedy, William S Webster, Majella Hill, Helen E Ritchie
BACKGROUND: Tranylcypromine is a non-selective inhibitor of monamine oxidase which also inhibits the reuptake of norepinephrine. Spontaneous hypertensive reactions to the drug have been reported. In sheep tranylcypromine has been shown to cause a dose-dependent reduction in uterine blood flow. A similar effect in a pregnant woman might induce constriction of the uterine arteries and temporary fetal hypoxia. CASES: MotherSafe is a state-based Teratogen Information service and currently provides counselling to around 22,000 consumers and healthcare professionals annually regarding exposures during pregnancy and breastfeeding We report on the outcome of 2 pregnancies in a patient treated with high dose tranylcypromine as well as pimozide, diazepam and alprazolam...
February 22, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28237536/early-experience-of-macitentan-for-pulmonary-arterial-hypertension-in-adult-congenital-heart-disease
#10
S Herbert, W Gin-Sing, L Howard, R M R Tulloh
BACKGROUND: Endothelin receptor antagonists (ERA) have been recognised as effective therapy for pulmonary arterial hypertension in congenital heart disease (CHD-PH), and Eisenmenger syndrome (ES) since the Breathe 5 study. A new dual receptor antagonist - Macitentan - is currently undergoing trials to determine its efficacy in simple ES. To date there is little information on this therapy in CHD and we report our first experience, some with more complex diseases. METHODS: Data was collected prospectively from September 2014...
February 6, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28236585/the-importance-of-genetic-counseling-and-genetic-screening-a-case-report-of-a-16-year-old-boy-with-resistant-hypertension-and-severe-hypokalemia
#11
Ze-Min Kuang, Ying Wang, Jia-Jie Wang, Jing-Hua Liu, Rong Zeng, Qi Zhou, Zhen-Qiu Yu, Long Jiang
Liddle's syndrome, an autosomal dominant form of monogenic hypertension, is characterized by salt-sensitive hypertension with early penetrance, hypokalemia, metabolic alkalosis, suppression of plasma rennin activity and aldosterone secretion, and a clear-cut response to epithelial sodium channel blockers but not spironolactone therapy. Here, we describe the case of a 16-year-old boy patient with resistant hypertension (maintain 170-180/100-110 mm Hg after administration four kinds of antiypertensive drugs) and severe hypokalemia...
February 3, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28236098/use-of-extracorporeal-membrane-oxygenation-in-complicated-transcatheter-aortic-valve-replacement
#12
Kyokun Uehara, Kenji Minakata, Naritatsu Saito, Masao Imai, Hiroki Daijo, Taro Nakatsu, Kazuhisa Sakamoto, Kazuhiro Yamazaki, Takeshi Kimura, Ryuzo Sakata
OBJECTIVES: Although transcatheter aortic valve replacement (TAVR) is an excellent alternative procedure for high-risk patients with severe symptomatic aortic stenosis, it is often associated with life-threatening complications. We report on the emergency or elective use of veno-arterial extracorporeal membrane oxygenation (ECMO) to manage these complications. METHODS: Between December 2013 and February 2016, 46 patients underwent TAVR at our institution. Of these, 4 patients required emergency ECMO support and another 3 patients were electively placed on ECMO support at the start of the procedure...
February 24, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28236046/prevalence-and-distribution-of-calcified-nodules-in-carotid-arteries-in-correlation-with-clinical-symptoms
#13
Karolin Johanna Paprottka, Damiana Saam, Johannes Rübenthaler, Andreas Schindler, Nora Navina Sommer, Philipp Marius Paprottka, Dirk André Clevert, Maximilian Reiser, Tobias Saam, Andreas Helck
PURPOSE: Calcified nodules ("CN") are responsible for up to 5% of coronary-infarcts and, therefore, classified as minor criteria of "vulnerable" atherosclerotic plaque. We sought to evaluate prevalence and distribution of CN in carotid arteries in correlation with clinical symptoms. METHODS: 178 consecutive patients with unilateral ischemic stroke and carotid plaques ≥2 mm by duplex ultrasound underwent a carotid-black-blood-3T-MRI with fat-saturated pre- and post-contrast T1w-, PDw-, T2w- and TOF images using dedicated surface-coils...
February 24, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28236024/molecular-imaging-of-the-human-pulmonary-vascular-endothelium-in-pulmonary-hypertension-a-phase-ii-safety-and-proof-of-principle-trial
#14
François Harel, David Langleben, Steve Provencher, Alain Fournier, Vincent Finnerty, Quang T Nguyen, Myriam Letourneau, Xavier Levac, Gad Abikhzer, Jean Guimond, Asmaa Mansour, Marie-Claude Guertin, Jocelyn Dupuis
PURPOSE: The adrenomedullin receptor is densely expressed in the pulmonary vascular endothelium. PulmoBind, an adrenomedullin receptor ligand, was developed for molecular diagnosis of pulmonary vascular disease. We evaluated the safety of PulmoBind SPECT imaging and its capacity to detect pulmonary vascular disease associated with pulmonary hypertension (PH) in a human phase II study. METHODS: Thirty patients with pulmonary arterial hypertension (PAH, n = 23) or chronic thromboembolic PH (CTEPH, n = 7) in WHO functional class II (n = 26) or III (n = 4) were compared to 15 healthy controls...
February 24, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28235521/aneurysmal-hemorrhage-in-a-pregnant-patient-with-coarctation-of-aorta-an-anesthetic-challenge
#15
G S Tomar, K Goyal, R Chandran, A Luthra, V Chauhan, N Kumar
A 25years old female patient with pregnancy of 16weeks (G2 P1), diagnosed to have distal anterior cerebral artery aneurysm (DACA) with Hunt & Hess grade I, subarachnoid hemorrhage (SAH) and coexisting atretic type of aortic coarctation posted for aneurysmal clipping under general anesthesia is a challenge to anesthesiologists in perioperative period. Hypertensive surges in a pregnant patient may result in rupture of aneurysms. Mortality in the mothers with CoA has been reported to be in the range of 0 to 9%...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28235505/tension-pneumomediastnum-a-rare-cause-of-acute-intraoperative-circulatory-collapse-in-the-setting-of-unremarkable-tee-findings
#16
Jonathan B Weaver, Avinash B Kumar
DESIGN: Case report. SETTING: Operating room. PATIENT: 25YF, ASA IV E who underwent an emergent decompressive craniectomy for refractory intracranial hypertension secondary to acute intracranial hemorhage. INTERVENTIONS: A 25Y caucasian female presented with acute intracranial hemorrhage with intraventricular extension secondary to Moya Moya disease. Post admisison, she underwent an emergent decompressive craniectomy for medically refractory intracranial hypertension...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28231583/prevalence-of-impaired-kidney-function-in-the-german-elderly-results-from-the-berlin-aging-study-ii-base-ii
#17
Maximilian König, Maik Gollasch, Ilja Demuth, Elisabeth Steinhagen-Thiessen
BACKGROUND: In aging populations with an ever-growing burden of risk factors such as obesity, diabetes, and hypertension, chronic kidney disease (CKD) is on the rise. However, little is known about its exact prevalence among elderly adults, and often albuminuria is not included in the definition of CKD. Moreover, novel equations for the estimated glomerular filtration rate (eGFR) have recently emerged, which have not been applied comprehensively to older adults. Data on CKD awareness among the elderly are sparse...
February 24, 2017: Gerontology
https://www.readbyqxmd.com/read/28231259/impact-of-seasonality-and-air-pollutants-on-carotid-femoral-pulse-wave-velocity-and-wave-reflection-in-hypertensive-patients
#18
Marina Di Pilla, Rosa Maria Bruno, Francesco Stea, Luciano Massetti, Stefano Taddei, Lorenzo Ghiadoni, Pietro Amedeo Modesti
OBJECTIVE: The effects of seasonality on blood pressure (BP) and cardiovascular (CV) events are well established, while the influence of seasonality and other environmental factors on arterial stiffness and wave reflection has never been analyzed. This study evaluated whether seasonality (daily number of hours of light) and acute variations in outdoor temperature and air pollutants may affect carotid-femoral pulse wave velocity (PWV) and pressure augmentation. DESIGN AND METHOD: 731 hypertensive patients (30-88 years, 417 treated) were enrolled in a cross-sectional study during a 5-year period...
2017: PloS One
https://www.readbyqxmd.com/read/28230786/sex-specificity-of-mineralocorticoid-target-gene-expression-during-renal-development-and-long-term-consequences
#19
Laurence Dumeige, Caroline Storey, Lyvianne Decourtye, Melanie Nehlich, Christophe Lhadj, Say Viengchareun, Laurent Kappeler, Marc Lombès, Laetitia Martinerie
Sex differences have been identified in various biological processes, including hypertension. The mineralocorticoid signaling pathway is an important contributor to early arterial hypertension, however its sex-specific expression has been scarcely studied, particularly with respect to the kidney. Basal systolic blood pressure (SBP) and heart rate (HR) were measured in adult male and female mice. Renal gene expression studies of major players of mineralocorticoid signaling were performed at different developmental stages in male and female mice using reverse transcription quantitative PCR (RT-qPCR), and were compared to those of the same genes in the lung, another mineralocorticoid epithelial target tissue that regulates ion exchange and electrolyte balance...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230187/silencing-salusin-%C3%AE-attenuates-cardiovascular-remodeling-and-hypertension-in-spontaneously-hypertensive-rats
#20
Xing-Sheng Ren, Li Ling, Bing Zhou, Ying Han, Ye-Bo Zhou, Qi Chen, Yue-Hua Li, Yu-Ming Kang, Guo-Qing Zhu
Salusin-β is a bioactive peptide involved in vascular smooth muscle cell proliferation, vascular fibrosis and hypertension. The present study was designed to determine the effects of silencing salusin-β on hypertension and cardiovascular remodeling in spontaneously hypertensive rats (SHR). Thirteen-week-old male SHR and normotensive Wistar-Kyoto rats (WKY) were subjected to intravenous injection of PBS, adenoviral vectors encoding salusin-β shRNA (Ad-Sal-shRNA) or a scramble shRNA. Salusin-β levels in plasma, myocardium and mesenteric artery were increased in SHR...
February 23, 2017: Scientific Reports
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