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Nocturnal hypertension

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https://www.readbyqxmd.com/read/28069009/multi-center-randomized-placebo-controlled-trial-of-nocturnal-oxygen-therapy-in-chronic-obstructive-pulmonary-disease-a-study-protocol-for-the-inox-trial
#1
Yves Lacasse, Sarah Bernard, Frédéric Sériès, Van Hung Nguyen, Jean Bourbeau, Shawn Aaron, François Maltais
BACKGROUND: Long-term oxygen therapy (LTOT) is the only component of the management of chronic obstructive pulmonary disease (COPD) that improves survival in patients with severe daytime hypoxemia. LTOT is usually provided by a stationary oxygen concentrator and is recommended to be used for at least 15-18 h a day. Several studies have demonstrated a deterioration in arterial blood gas pressures and oxygen saturation during sleep in patients with COPD, even in those not qualifying for LTOT...
January 9, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28052877/blood-pressure-measurement-anno-2016
#2
REVIEW
Jan A Staessen, Yan Li, Azusa Hara, Kei Asayama, Eamon Dolan, Eoin O'Brien
The rational management of hypertension (HT) inevitably starts with accurate measurement of blood pressure (BP). The recently published Systolic Blood Pressure Intervention Trial implemented automated office BP measurement. However, event-driven studies have overwhelmingly indicated that out-of-the-office BP monitoring is a prerequisite for risk stratification and for identifying the need of initiating or adjusting antihypertensive drug treatment. 24-Hour ambulatory BP monitoring is the preferred method of BP measurement and addresses major issues not covered by conventional or automated office BP measurement or home BP monitoring, such as reliably diagnosing nocturnal HT (the time window of the day during which BP is most predictive of adverse cardiovascular outcome), hypotension, or masked HT, a condition that affects 15% of the general populations and carries a risk equal to that of HT on both office and out-of-the-office BP measurement...
January 4, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28005575/reduced-capacity-of-autonomic-and-baroreflex-control-associated-with-sleep-pattern-in-spontaneously-hypertensive-rats-with-a-nondipping-profile
#3
Chieh-Wen Chen, Terry B J Kuo, Chun-Yu Chen, Cheryl C H Yang
OBJECTIVE: Ambulatory blood pressure (BP) monitoring with a lack of nocturnal BP fall (BP nondipping) has been reported to be more prevalent among hypertensive populations and is a risk factor for cardiovascular disease than in patients with dipping pattern. However, its underlying mechanism is not fully understood. This study hypothesized that spontaneously hypertensive rats (SHRs) with a nondipping profile have an exaggerated disruption of both autonomic functioning and sleep compared with Wistar-Kyoto rats (WKYs) with a nondipping profile...
December 21, 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27982269/blood-pressure-treatment-adherence-and-control-after-participation-in-the-rehot
#4
Nathália Silva de Jesus, Armando da Rocha Nogueira, Cacilda Oliveira Pachu, Ronir Raggio Luiz, Glaucia Maria Moraes de Oliveira
Background: Lack of adherence to pharmacological treatment is one of the main causes of low control rates in hypertension. Objective: To verify treatment adherence and associated factors, as well as blood pressure (BP) control in participants of the Resistant Hypertension Optimal Treatment (ReHOT) clinical trial. Method: Cross-sectional study including all 109 patients who had completed the ReHOT for at least 6 months. We excluded those participants who failed to respond to the new recruitment after three phone contact attempts...
November 2016: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/27974526/chronotherapy-for-hypertension-in-obstructive-sleep-apnoea-chosa-a-randomised-double-blind-placebo-controlled-crossover-trial
#5
Yasmina Serinel, Brendon J Yee, Ronald R Grunstein, Keith H Wong, Peter A Cistulli, Hisatomi Arima, Craig L Phillips
BACKGROUND: Obstructive sleep apnoea (OSA) is an important cause of secondary hypertension. Nocturnal hypertension is particularly prevalent in OSA and is a strong predictor of cardiovascular mortality. Studies in patients with essential hypertension have suggested that nocturnal administration of antihypertensives improves nocturnal blood pressure (BP) without elevating daytime BP. We evaluated the efficacy of this technique in patients with OSA with stage I/II hypertension, both before and after the addition of CPAP...
December 14, 2016: Thorax
https://www.readbyqxmd.com/read/27926690/changes-of-blood-pressure-patterns-and-target-organ-damage-in-patients-with-chronic-kidney-disease-results-of-the-aprodite-2-study
#6
Ran-Hui Cha, Hajeong Lee, Jung Pyo Lee, Eunjeong Kang, Young Rim Song, Yon Su Kim, Sung Gyun Kim
OBJECTIVE: Blood pressure (BP) control is the most established practice for preventing the progression of chronic kidney disease (CKD). We examined the BP control and nocturnal dipping pattern changes in hypertensive patients with CKD and their effects on target organ damages. METHODS: We recruited 378 hypertensive CKD patients from four centers in Korea. The patients underwent clinic and ambulatory BP monitoring at the time of enrollment and 1 year later. RESULTS: The BP control states at the two time points were as follows: true controlled (16...
December 6, 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27906839/endothelin-contributes-to-the-blood-pressure-rise-triggered-by-hypoxia-in-severe-obstructive-sleep-apnea
#7
Christophe Janssen, Atul Pathak, Guido Grassi, Philippe van de Borne
BACKGROUND: Obstructive sleep apnea (OSA) is strongly correlated with an increased risk of systemic hypertension. However, the link between systemic hypertension and nocturnal apneas remains incompletely understood. Animal studies suggest an implication of the endothelin system. The aim of the present study is to determine if endogenous endothelin plays a role in the increase in blood pressure observed during hypoxic episodes in OSA patients, in addition to peripheral chemoreflex and neural sympathetic activation...
January 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/27902610/mean-apnea-hypopnea-duration-but-not-apnea-hypopnea-index-is-associated-with-worse-hypertension-in-patients-with-obstructive-sleep-apnea
#8
Hao Wu, Xiaojun Zhan, Mengneng Zhao, Yongxiang Wei
To determine which polysomnography parameters are associated with severity of hypertension.This retrospective study collected data on all patients admitted to our urban, academic center in Beijing with hypertension who had undergone polysomnograms (PSG) and were diagnosed with obstructive sleep apnea (OSA) (apnea-hyponea index [AHI] ≥5/hour). We then compared polysomnographic parameters (AHI, oxygen desaturation index [ODI], lowest oxygen saturation [LOS], and mean apnea-hypopnea duration [MAD]) by hypertension severity in this cohort...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27900498/central-hemodynamics-and-arterial-stiffness-in-idiopathic-and-multiple-system-atrophy
#9
Klaas Franzen, Sabine Fliegen, Jelena Koester, Rafael Campos Martin, Günther Deuschl, Michael Reppel, Kai Mortensen, Susanne A Schneider
Blood pressure is commonly abnormal in parkinsonian disorders, but central hemodynamics and arterial stiffness, well-established predictors of total cardiovascular risk, have rarely been studied in these disorders. 32 patients [27 with idiopathic Parkinson's disease (iPD); 5 with multiple system atrophy (MSA)] and 15 controls matched for cardiac risk factors underwent 24 h-ambulatory blood pressure recordings using an I.E.M. device (Mobil-O-Graph™), measuring peripheral pressure and calculating central pressures and arterial stiffness...
November 29, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27884004/precapillary-pulmonary-hypertension-and-sleep-disordered-breathing-is-there-a-link
#10
Robert Thurnheer, Silvia Ulrich, Konrad E Bloch
Among patients with sleep apnea the reported prevalence of precapillary pulmonary hypertension (PH) has varied largely, depending on patient selection, disease definition, and associated conditions, in particular chronic pulmonary disease. However, in the absence of comorbidities, PH seems to be rare in patients with sleep apnea. Conversely, sleep-related breathing disorders have been commonly found in patients with PH and they have been associated with an impaired quality of life. Since sleep-related breathing disorders may affect the pulmonary circulation and vice versa, patients with sleep-related breathing disorders should be evaluated for risk factors, symptoms and clinical signs of PH and right ventricular heart failure and patients with PH should be evaluated for sleep apnea...
2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/27878796/patent-foramen-ovale-a-novel-cardiovascular-risk-factor-in-patients-with-sleep-disordered-breathing-and-high-altitude-dwellers
#11
Emrush Rexhai, Urs Scherrer, Stefano F Rimoldi
Diseases associated with chronic hypoxaemia are a leading cause of morbidity and mortality in Western countries. Epidemiological data indicate that cardiovascular diseases contribute substantially to this problem, but the underlying mechanisms are incompletely understood. Sleep disordered breathing and high altitude exposure are frequent conditions associated with hypoxaemia. Recent evidence suggests that in these conditions the concomitant presence of a patent foramen ovale plays an important pathogenic role...
2016: Swiss Medical Weekly
https://www.readbyqxmd.com/read/27867290/ranolazine-is-an-effective-and-safe-treatment-of-adults-with-symptomatic-premature-ventricular-contractions-due-to-triggered-ectopy
#12
Gary L Murray
Early and delayed afterdepolarizations (EAD/DAD) cause triggered ventricular ectopy. Because ranolazine (RAN) suppresses EAD/DAD, we postulated that RAN might be effective in reducing premature ventricular contractions (PVCs). To assess the effect of RAN in patients with symptomatic PVCs due to triggered ectopy and its safety and tolerability. A total of 59 patients with symptomatic PVCs were identified from full-disclosure Holters. Doses of 500 and 1,000 mg offlabel RAN, daily, were given to 34 and 66% patients, respectively, and repeat Holters were performed prospectively during mean followup of 3...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/27855748/ambulatory-blood-pressure-monitoring-in-chinese-obstructive-sleep-apnea-patients
#13
Yan Ma, Shuchen Sun, Chung-Kang Peng, Yeming Fang, Robert J Thomas
STUDY OBJECTIVES: Nocturnal blood pressure (BP) dipping in patients with obstructive sleep apnea (OSA) has not yet been well investigated in Chinese patients, in whom the relationship of OSA and body mass index (BMI) is weaker than that in Caucasians. The aim of this study was to evaluate the BP profile, and the relationships between nocturnal BP and the severity of OSA, in Chinese patients. METHODS: Consecutive Chinese adult outpatients with suspected OSA had overnight polysomnography (PSG), office BP, and 24-h ambulatory BP monitoring (ABPM)...
November 14, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27844408/chronotherapy-for-hypertension-in-patients-with-chronic-kidney-disease-a-systematic-review-and-meta-analysis-in-non-black-patients
#14
REVIEW
Caixia Wang, Xilian Qiu, Linsheng Lv, Jianhua Huang, Shaomin Li, Tanqi Lou, Xun Liu
PURPOSE: To investigate the effects of chronotherapy on blood pressure in patients with chronic kidney disease (CKD). METHODS: We searched PUBMED, EMBASE, ASN-ONLINE, the Cochrane Library and the reference articles of published papers without language restriction, for randomized and non-randomized trials that assessed the effect of chronotherapy versus morning dosing regimen drug therapy for CKD patients with hypertension. Meta-analysis was done with random-effect models...
November 14, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27836914/masked-hypertension-understanding-its-complexity
#15
REVIEW
Stanley S Franklin, Eoin O'Brien, Jan A Staessen
Masked hypertension, which is present when in-office normotension translates to out-of-office hypertension, is present in a surprisingly high percentage of untreated persons and an even higher percentage of patients after beginning antihypertensive medication. Not only are persons with prehypertension more likely to have masked hypertension than those with optimal blood pressure (BP), but also they frequently develop target organ damage prior to transitioning to sustained hypertension. Furthermore, the frequency of masked hypertension is high in individuals of African inheritance and in the presence of increased cardiovascular risk factors and disease states, such as diabetes and chronic renal failure...
November 10, 2016: European Heart Journal
https://www.readbyqxmd.com/read/27826342/endocan-and-non-dipping-circadian-pattern-in-newly-diagnosed-essential-hypertension
#16
Tolga Çimen, Murat Bilgin, Ahmet Akyel, Mehmet Ali Felekoğlu, Ali Nallbani, Şeyda Özdemir, Gönül Erden, Alpaslan Öztürk, Mehmet Doğan, Ekrem Yeter
BACKGROUND AND OBJECTIVES: Non-dipper hypertension is frequently accompanied by endothelial dysfunction and activation. Previous studies suggested that endocan may be a novel endothelial dysfunction marker. This study aims to investigate the association between circadian blood pressure (BP) pattern and plasma endocan levels together with high-sensitivity C-reactive protein (hsCRP) in patients with newly diagnosed untreated hypertension. SUBJECTS AND METHODS: Twenty-four hour ambulatory blood pressure monitoring was recorded in 35 dipper, 35 non-dipper hypertensives and 35 healthy controls...
November 2016: Korean Circulation Journal
https://www.readbyqxmd.com/read/27825406/relationships-of-blood-pressure-circadian-rhythm-and-brain-br-natriuretic-peptide-with-left-ventricular-hypertrophy-in-br-the-patients-with-primary-hypertension
#17
Hui-Juan Kou, Xin Wang, Deng-Feng Gao, Xin Dong, Jin Wei, Rui Ma
Objective To investigate the relationships of blood pressure circadian rhythm and brain natriuretic peptide (BNP) with left ventricular hypertrophy (LVH) in patients with primary hypertension. Methods Totally 349 patients (74 with LVH and 275 without LVH) with primary hypertension were enrolled in this study.Echocardiography was performed to determine left ventricular mass index (LVMI) using the Devereux formula. The nocturnal blood pressure decline rate,24-hour blood pressure (24 h PP; especially 24 h mean systolic blood pressure,24 h SBP) and blood pressure index (PPI) were determined by 24 h-ambulatory blood pressure monitoring...
October 10, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/27813193/the-importance-of-and-potential-for-continuous-monitoring-of-intraocular-pressure
#18
REVIEW
Charles W McMonnies
Monitoring intraocular pressure (IOP) is a critically important part of glaucoma management; however, clinical tonometry predominantly involves sitting postures and is unable to detect variations in response to posture changes, muscular effort, deep respirations and during a wide range of activities, such as playing high wind-resistance instruments and wearing swimming goggles in addition to eye touching and rubbing. For example, the usefulness of 24-hour tonometric phasing may be increased, if nocturnal assessments included side and prone sleeping postures rather than being limited to supine posture tonometry...
November 3, 2016: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/27812496/reversible-exacerbation-of-obstructive-sleep-apnea-by-%C3%AE-1-adrenergic-blockade-with-tamsulosin-a-case-report
#19
Mark Moran
: Obstructive sleep apnea (OSA) is characterized by repeated involuntary closure of the pharyngeal airspace during sleep. Normal activity of the genioglossus (GG) muscle is important in maintaining airway patency, and inhibition of GG activity can contribute to airway closure. Neurons in the hypoglossal motor nucleus (HMN) regulate GG activity. Adrenergic tone is an important regulator of HMN neuronal excitability. In laboratory models α1-adrenergic antagonists inhibit HMN neurons and GG activity, suggesting that α1-adrenergic antagonism might adversely affect patients with OSA...
2016: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/27806988/a-nested-case-control-study-of-the-association-between-melatonin-secretion-and-incident-myocardial-infarction
#20
Ciaran J McMullan, Eric B Rimm, Eva S Schernhammer, John P Forman
OBJECTIVES: Low nocturnal melatonin secretion is associated with cardiovascular risk factors, diabetes and hypertension, while individuals with prevalent cardiovascular disease have lower nocturnal melatonin levels. However, the prospective association of melatonin secretion with myocardial infarction (MI) has not been studied. We aimed to study the association between melatonin secretion and the risk of developing MI. METHODS: We performed a prospective nested case-control study of participants from the Nurses' Health Study cohorts I and II...
November 2, 2016: Heart: Official Journal of the British Cardiac Society
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