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Essential hypertension

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https://www.readbyqxmd.com/read/29228086/new-methods-to-study-the-microcirculation
#1
Damiano Rizzoni, Claudia Agabiti Rosei, Carolina De Ciuceis, Francesco Semeraro, Marco Rizzoni, Franco Docchio
Essential hypertension is associated with structural alterations in the microvessels; in particular, an increase in the media thickness to internal lumen ratio of small resistance arteries (MLR) and a reduction in capillary density have been observed. The evaluation of the morphological characteristics of small resistance arteries in humans is challenging. The gold standard method is generally considered to be the measurement by wire or pressure micromyography of MLR of subcutaneous small vessels obtained by local biopsies...
December 7, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/29228036/supervised-retinal-vessel-segmentation-from-color-fundus-images-based-on-matched-filtering-and-adaboost-classifier
#2
Nogol Memari, Abd Rahman Ramli, M Iqbal Bin Saripan, Syamsiah Mashohor, Mehrdad Moghbel
The structure and appearance of the blood vessel network in retinal fundus images is an essential part of diagnosing various problems associated with the eyes, such as diabetes and hypertension. In this paper, an automatic retinal vessel segmentation method utilizing matched filter techniques coupled with an AdaBoost classifier is proposed. The fundus image is enhanced using morphological operations, the contrast is increased using contrast limited adaptive histogram equalization (CLAHE) method and the inhomogeneity is corrected using Retinex approach...
2017: PloS One
https://www.readbyqxmd.com/read/29227264/characteristics-of-changes-in-cognitive-functions-of-the-patients-with-hypertensive-disease
#3
L Gerasimenko, E Sid, V Lychko
Decline of the cognitive functions is one of the modern medicine actual problem. The influence of hypertension as modifiable risk factor in the evolution of cognitive impairment is emphasized in numerous investigations. Almost all the proposed in research literature data were obtained from the investigation of old patients group, who had high indexes of blood pressure and stroke histories. Therefore, we think that it is very impotent to detect the slight and moderate cognitive impairment of hypertensive patients of working age until the expressed clinical signs appear...
November 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29226693/higher-pulse-pressure-and-risk-for-cardiovascular-events-in-patients-with-essential-hypertension-the-campania-salute-network
#4
Costantino Mancusi, Maria A Losi, Raffaele Izzo, Grazia Canciello, Maria V Carlino, Giovanni Albano, Nicola De Luca, Bruno Trimarco, Giovanni de Simone
Background Increased pulse pressure is associated with structural target organ damage, especially in elderly patients, increasing cardiovascular risk. Design In this analysis, we investigated whether high pulse pressure retains a prognostic effect also when common markers of target organ damage are taken into account. Methods We analysed an unselected cohort of treated hypertensive patients from the Campania Salute Network registry ( n = 7336). Participants with available cardiac and carotid ultrasound were required to be free of prevalent cardiovascular disease, with ejection fraction ≥50%, and no more than stage III Chronic Kidney Disease...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29224639/a-multinational-clinical-approach-to-assessing-the-effectiveness-of-catheter-based-ultrasound-renal-denervation-the-radiance-htn-and-require-clinical-study-designs
#5
Laura Mauri, Kazuomi Kario, Jan Basile, Joost Daemen, Justin Davies, Ajay J Kirtane, Felix Mahfoud, Roland E Schmieder, Michael Weber, Shinsuke Nanto, Michel Azizi
Catheter-based renal denervation is a new approach to treat hypertension via modulation of the renal sympathetic nerves. Although nonrandomized and small, open-label randomized studies resulted in significant reductions in office blood pressure 6months after renal denervation with monopolar radiofrequency catheters, the first prospective, randomized, sham-controlled study (Symplicity HTN-3) failed to meet its blood pressure efficacy end point. New clinical trials with new catheters have since been designed to address the limitations of earlier studies...
January 2018: American Heart Journal
https://www.readbyqxmd.com/read/29223272/a-49-year-old-woman-with-right-apical-thoracic-mass
#6
Yevgeniy A Linnik, Dagmar Hoegemann Savellano, Joseph D Phillips, Candice C Black
A 49-year-old woman with a medical history of essential hypertension presented to the ED with severe pain in the left superior chest and dull aching pain in the upper flank, lasting for the last 2 days.
December 2017: Chest
https://www.readbyqxmd.com/read/29223189/the-evaluation-of-arterial-stiffness-of-essential-hypertension-and-white-coat-hypertension-in-children-a-case-control-study
#7
Semiha Terlemez Tokgöz, Dilek Yılmaz, Yavuz Tokgöz, Bülent Çelik, Yasin Bulut
BACKGROUND: The aim of this study was to determine and compare cardiovascular risks by assessing arterial stiffness in children with essential hypertension and white coat hypertension. METHODS: Paediatric patients followed up with essential hypertension and white coat hypertension diagnoses and with no established end organ damage were involved in the study. Arterial stiffness in children included in the study was evaluated and compared by using the oscillometric device (Mobil-O-Graph) method...
December 10, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29222949/a-switch-from-gaba-inhibition-to-excitation-of-vasopressin-neurons-exacerbates-the-development-angiotensin-ii-dependent-hypertension
#8
Aaron K Korpal, Su Young Han, Daryl O Schwenke, Colin H Brown
Hypothalamic magnocellular neurons secrete vasopressin into the systemic circulation to maintain blood pressure by increasing renal water reabsorption and by vasoconstriction. When blood pressure rises, baroreflex activation normally inhibits vasopressin neurons via activation of GABAergic inputs. However, plasma vasopressin levels are paradoxically elevated in several models of hypertension and in some patients with essential hypertension, despite increased blood pressure. We have previously shown that vasopressin neuron activity is increased early in the development of moderate angiotensin II-dependent hypertension via blunted baroreflex inhibition of vasopressin neurons...
December 9, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29217510/loss-of-vascular-myogenic-tone-in-mir-143-145-knockout-mice-is-associated-with-hypertension-induced-vascular-lesions-in-small-mesenteric-arteries
#9
Johan Holmberg, Anirban Bhattachariya, Azra Alajbegovic, Catarina Rippe, Mari Ekman, Diana Dahan, Tran Thi Hien, Thomas Boettger, Thomas Braun, Karl Swärd, Per Hellstrand, Sebastian Albinsson
OBJECTIVE: Pressure-induced myogenic tone is involved in autoregulation of local blood flow and confers protection against excessive pressure levels in small arteries and capillaries. Myogenic tone is dependent on smooth muscle microRNAs (miRNAs), but the identity of these miRNAs is unclear. Furthermore, the consequences of altered myogenic tone for hypertension-induced damage to small arteries are not well understood. APPROACH AND RESULTS: The importance of smooth muscle-enriched microRNAs, miR-143/145, for myogenic tone was evaluated in miR-143/145 knockout mice...
December 7, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29217449/role-of-brachial-artery-ligation-bal-in-management-of-prosthetic-arterio-venous-graft-infections
#10
A R Chandrashekar, Chetan R Hoskatti, Sanjay C Desai, Rajendra B Prasad
CONTEXT: Arterio-Venous Graft (AVG) infections can present as major life-threatening hemorrhage or sepsis in a chronic kidney disease patient. Frequently all these patients present in critical condition which need prompt and expeditious management. Various procedures are described for management of infected grafts and its bleeding complications. However these procedures are associated with postop-operative bleeding and persistent infection. AIM: To study brachial artery ligation near the elbow joint in the management of an infected AV graft...
December 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29216336/managing-diabetic-kidney-disease
#11
Sagen Zac-Varghese, Peter Winocour
Introduction: Diabetes mellitus (DM) is the leading cause of chronic kidney disease (CKD). This review covers the pillars of care essential for the management of diabetic kidney disease (DKD) including (1) early diagnosis, (2) improved glycaemic control, (3) treatment of hypertension, (4) identification and treatment of associated metabolic bone disease and (5) identification and effective management of dyslipidaemia and additional cardiovascular risk factors. Sources of data: We searched PubMed for articles using search terms: diabetic nephropathy, diabetic kidney disease, diabetes and chronic kidney disease...
December 5, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/29214027/to-what-extent-do-prescribing-practices-for-hypertension-in-the-private-sector-in-zimbabwe-follow-the-national-treatment-guidelines-an-analysis-of-insurance-medical-claims
#12
Victor Basopo, Paschal N Mujasi
Background: Hypertension is the most prevalent cardiovascular disease in Zimbabwe. The prevalence of Hypertension in the country is above 30% regardless of the cut off used. Currently, majority of patients in Zimbabwe seek health care from the private sector due to limited government funding for the public health sector. However, Standard treatment guidelines for hypertension are only available in the public sector and are optional in the private sector. This study assesses compliance of private sector prescribing to Standard Treatment guidelines for hypertension...
2017: Journal of Pharmaceutical Policy and Practice
https://www.readbyqxmd.com/read/29210861/risk-of-stroke-and-coronary-heart-disease-among-various-levels-of-blood-pressure-in-diabetic-and-nondiabetic-chinese-patients
#13
Yuqing Zhang, Xueli Jiang, Jian Bo, Lu Yin, Hui Chen, Yang Wang, Hongwei Yu, Xingyu Wang, Wei Li
OBJECTIVE: To compare the risk of stroke and coronary heart disease (CHD) among various blood pressure (BP) levels in diabetic and people without diabetes Chinese patients. METHODS: This cross-sectional study was part of Prospective Urban Rural Epidemiology China study. Patients aged 35 to70 years were recruited from 12 provinces of China between 2005 and 2009. The participants were classified into three groups: hypertension (HTN), high normal BP, and normal BP, and also into SBP and DBP quintiles...
January 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29210149/retinal-vascular-complications-associated-with-interferon-ribavirin-therapy-for-chronic-hepatitis-c-a-population-based-study
#14
Chien-Hsiung Lai, Yao-Hsu Yang, Pau-Chung Chen, Ying-Chi King, Chia-Yen Liu
PURPOSE: To investigate the incidence of retinal vascular complications and risk factors in patients with chronic hepatitis C receiving interferon-ribavirin therapy in Taiwan. METHODS: By using the Taiwan National Health Insurance Research Database, we compared the incidence of retinal vascular complications between patients receiving and not receiving interferon-ribavirin treatment. The exposure and nonexposure groups were randomly 1:1 frequency-matched according to age, sex, income, urbanization level, hypertension, and diabetes...
December 6, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29207789/minerals-in-pregnancy-and-lactation-a-review-article
#15
REVIEW
Samira Khayat, Hamed Fanaei, Abdolhakim Ghanbarzehi
Micronutrients (include vitamins and minerals) are essential for normal function, growth and development. Minerals have important effects on the health of the mother and foetus. But biological mechanisms of minerals are not completely understood. Micronutrient deficiency during pregnancy can lead to anaemia, hypertension, obstetric complications and even maternal death and in foetus lead to a fail in growth and development. Mineral deficiency during pregnancy, particularly exist in developing countries. During pregnancy due to the increased demands caused by physiological changes, deficiency is exaggerated and as a result its complications occur...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207726/pleiotropic-effects-of-losartan-in-hypertensive-patients-with-dyslipidemia
#16
Sivakumar Sivasubramaniam, Banupriya Kumarasamy
Introduction: In essential hypertension, the comorbidity of dyslipidemia is very common. In addition to hypertension, dyslipidemia is linked to cardiovascular disease, stroke and decline in renal function. Unlike other angiotensin receptor blockers, Losartan has been claimed to have unique pleiotropic property and thereby decreasing the risk of future cardiovascular complications. Aim: The present study was done to assess on the pleiotropic effect of losartan in newly diagnosed hypertensive patients with dyslipidemia...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207219/-donor-and-recipient-selection-in-living-donor-kidney-transplantation-eligibility
#17
REVIEW
Marilena Gregorini, Eleonora Francesca Pattonieri, Gianluca Fasoli, Mauro Valente, Edoardo La Porta, Michele Canevari, Fulvia Erasmi, Teresa Rampino
This review is intended to be a guide for the physician to evaluate and prepare a donor / recipient couple for living kidney transplantation. Although it is intended to be exhaustive, it will not be able to respond at all possible and different cases, but it may apply at most of them. Renal transplantation is considered the choice treatment for patients with chronic renal failure and if the kidney transplant is performed pre-emptive it is associated with better organ and patient survival. The main aim of the program is to evaluate the risks of donor and recipient and to ensure the donor safety and well-being...
December 5, 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/29207167/prazosin-protects-myocardial-cells-against-anoxia-reoxygenation-injury-via-the-extracellular-signal%C3%A2-regulated-kinase-signaling-pathway
#18
Lixin Wang, Yan Xue, Hao Ma, Haiyan Shi, Ling Wang, Xiaozheng Cui
Ischemic heart disease (including coronary arterial atherosclerosis, or vascular cavity stenosis or occlusion) remains the leading cause of disease‑associated mortality worldwide. Prazosin, a receptor blocker of postsynaptic adrenaline, is essential in expanding peripheral arteries, which decreases peripheral vascular resistance, and regulates anti‑hypertensive action. However, the mechanisms underlying the effects of prazosin have not been fully elucidated. The aim of the present study was to investigate the protective effects of prazosin on myocardial cells against anoxia‑reoxygenation injury in a mouse model...
November 28, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29206696/the-perioperative-significance-of-systemic-arterial-diastolic-hypertension-in-adults
#19
Daniel I Asher, Edwin G Avery
PURPOSE OF REVIEW: Hypertension affects approximately one third of the U.S. population and is the most common preventable medical reason that surgical cases are postponed or cancelled. However, subtypes of hypertension and their perioperative risks are poorly studied and understood. We will review the natural history and pathophysiology of essential hypertension and discuss the perioperative significance of diastolic blood pressure elevation. RECENT FINDINGS: There is evidence that elevated preoperative diastolic blood pressures are associated with an increased perioperative risk of cardiovascular and cerebrovascular events and increased postoperatively 30-day mortality...
December 4, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29203039/-vascular-calcification-in-pseudoxanthoma-elasticum-in-children
#20
A Dibi, N Mouane, E El Fahime, R Dafiri, A Bentahila
INTRODUCTION: Vascular calcifications are associated with several diseases that affect vascular connective tissue and skin and cause considerable morbidity and mortality. The prototype of these conditions is pseudoxanthoma elasticum. We report, in this study, 4 pediatric cases of vascular calcifications diagnosed as elastic pseudoxanthoma. OBSERVATIONS: These 4 children were 2-11 years old and presented variable clinical features. Vascular involvement and arterial hypertension was observed in all patients, skin involvement in 2 cases, gastrointestinal involvement in 2 cases, neurological impairment in one case, and cardiac involvement in one case...
December 2017: Journal de Médecine Vasculaire
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