Changes in 6-minute walking distance in lung transplant candidates while participating in a home-based pre-habilitation program-A retrospective chart review.

Home-based exercise programs may offer a less costly alternative to providing exercise pre-transplant to a large number of patients. We describe the changes in 6-minute walk distance (6MWD) in lung transplant candidates who participated in a home-based exercise program and their relationship to post-transplant outcomes. Retrospectively, we investigated 159 individuals while awaiting transplantation who performed the surgery between 2011 and 2015. Primary outcome was 6MWD at time of assessment for transplant, last test prior to transplant and one-month post-transplant. 6MWD decreased by 28 ± 93.9 m between the time of assessment and the last 6MWD prior to transplantation (P < .001). Forty-one patients (25.8%) increased their 6MWD (mean + 85.8 ± 42.8 m); 72 patients (45.3%) decreased their 6MWD (mean -109.8 ± 71.2 m); and 46 patients (28.9%) had no change in 6MWD (-1.5 ± 15.7 m). There was a moderate correlation (r = .528; P < .001) between the last 6MWD prior to transplant and 6MWD post-transplant. Change in 6MWD prior to transplant weakly correlated with length of time on mechanical ventilation (r = -.185; P = .034). When adjusted for covariates, change in 6MWD prior to transplant was not associated with length of time on mechanical ventilation, total hospital LOS, or intensive care unit LOS. The majority of the patients were able to either increase or maintain their 6MWD while participating in a home-based pre-habilitation program during the waiting list period. Prospective research is needed to evaluate the effects of home-based pre-habilitation program for lung candidates.

Exercise interventions in solid organ transplant candidates: A systematic review.

INTRODUCTION: Exercise training may be recommended to solid organ transplant (SOT) candidates to improve fitness and tolerance before surgery. We aimed to determine the acceptance, safety, and effectiveness of exercise interventions in SOT candidates. METHODS: Online databases were searched. Studies of any design were included. Outcomes of interest were acceptance, safety, exercise capacity, and health-related quality of life. RESULTS: Twenty-three articles were included. Acceptance ranged from 16% to 100%. In the fifteen studies that assessed adverse events, none mentioned any adverse events occurring during the study. Five out of seven studies reported an increase in maximal exercise capacity post-exercise in the intervention group (range of mean change: 0.45 to 2.9 mL/kg). Eight out of fourteen studies reported an increase in 6-minute walking distance in the intervention group after the training period (range of mean change: 40-105 m). Two articles showed an improvement in the mental composite scores as well as in the physical composite scores post-exercise in the intervention group. CONCLUSION: There was a lack of significant findings among most randomized controlled trials. Exercise training is acceptable and safe for selective SOT candidates. The effects of exercise training on exercise capacity and quality of life in SOT candidates are unclear.

Blood pressure variability and its association with echocardiographic parameters in hypertensive diabetic patients.

BACKGROUND: Blood pressure (BP) variability is associated with target organ damage in hypertension and diabetes. The 24 h ambulatory blood pressure monitoring (24 h-ABPM) has been proposed as an evaluation for BP variability using several indexes [standard deviation (SD) of mean BP, coefficient of variation (CV), BP variation over time (time-rate index)]. METHODS: We evaluated the association between BP variability measured by 24 h-ABPM indexes and echocardiographic variables in a cross-sectional study in 305 diabetic-hypertensive patients. RESULTS: Two groups were defined by the median (0.55 mmHg/min) of time-rate systolic BP (SBP) index and classified as low or high variability. Age was 57.3 ± 6.2 years, 196 (64.3%) were female. Diabetes duration was 10.0 (5.0-16.2) years, HbA1c was 8.2 ± 1.9%. Baseline clinical characteristics were similar between low (n = 148) and high (n = 157) variability groups. Office SBP and systolic 24 h-ABPM were higher in the high variability group (139.9 mmHg vs 146.0 mmHg, P = 0.006; 128.3 mmHg vs 132.9 mmHg, P = 0.019, respectively). Time-rate index, SD and CV of SBP, were higher in high variability group (P < 0.001; P < 0.001 and P = 0.003, respectively). Time-rate index was not independently associated with the echocardiography's variables in multiple linear model when adjusting for age, 24 h-ABPM, diabetes duration and HbA1c. The multiple linear regression model revealed that the significant and independent determinants for septum thickness, relative wall thickness and posterior wall thickness (parameters of left ventricular hypertrophy) were: age (p = 0.025; p = 0.010; p = 0.032, respectively) and 24 h-SBP (p < 0.001 in the three parameters). CONCLUSION: BP variability estimated by 24 h-ABPM is not independently associated with echocardiographic parameters in diabetic-hypertensive patients.

Influence of sleep apnea severity on blood pressure variability of patients with hypertension.

PURPOSE: Obstructive sleep apnea (OSA) is a risk factor for the development of hypertension and cardiovascular disease. Apnea overloads the autonomic cardiovascular control system and may influence blood pressure variability, a risk for vascular damage independent of blood pressure levels. This study investigates the hypothesis that blood pressure variability is associated with OSA. METHODS: In a cross-sectional study, 107 patients with hypertension underwent 24-h ambulatory blood pressure monitoring and level III polysomnography to detect sleep apnea. Pressure variability was assessed by the first derivative of blood pressure over time, the time rate index, and by the standard deviation of blood pressure measurements. The association between the apnea-hypopnea index and blood pressure variability was tested by univariate and multivariate methods. RESULTS: The 57 patients with apnea were older, had higher blood pressure, and had longer duration of hypertension than the 50 patients without apnea. Patients with apnea-hypopnea index (AHI) ≥ 10 had higher blood pressure variability assessed by the standard deviation than patients with AHI < 10 during sleep (10.4 ± 0.7 versus 8.0 ± 0.7, P = 0.02) after adjustment for age, body mass, and blood pressure. Blood pressure variability assessed by the time rate index presented a trend for association during sleep (P = 0.07). Daytime blood pressure variability was not associated with the severity of sleep apnea. CONCLUSION: Sleep apnea increases nighttime blood pressure variability in patients with hypertension and may be another pathway linking sleep abnormalities to cardiovascular disease.

High risk for sleep apnea in the Berlin questionnaire and coronary artery disease.

INTRODUCTION: Obstructive sleep apnea (OSA) affects up to 30% of the adult population and is a risk factor for coronary artery disease (CAD). The diagnostic process, involving polysomnography, may be complex. Berlin questionnaire (BQ) is a validated and economical screening tool. PURPOSE: The aim of this study was to assess the performance of the BQ for the diagnosis of OSA in individuals with angina complaints. METHODS: Patients undergoing diagnostic cineangiography, portable type III polysomnography to determine the apnea-hypopnea index (AHI), and who answered the BQ were included. We excluded patients older than 65 years that were smokers, diabetics, and morbidly obese. High risk for OSA was based on positive responses in two of three symptom criteria of the BQ. CAD was defined by the presence of >50% lesion in coronary arteries. RESULTS: In 57 included cases, high risk in the BQ indicates significant odds ratio [95% confidence interval] for the presence of CAD (4.5[1.03-19.25], P = 0.045), adjusted for usual confounders: gender, age, and body mass index. The sensitivity and the specificity of BQ for CAD were 70% and 48%, respectively; the positive and negative predictive values are 56% and 64%. CONCLUSIONS: In conclusion, simple questionnaire-based diagnostic tools can be included in the screening procedures of patients with angina to detect the need for further OSA evaluation. In conclusion, the BQ is an effective instrument for this purpose.

Inclusion of Exercise Prescription in Solid Organ Transplant in Physical Therapy Curricula Across Canadian Universities: A National Survey.

Purpose: This study evaluated the extent of education about exercise prescription for patients with solid organ transplant (SOT) provided in physical therapy (PT) entry-level programmes across Canadian universities. The nature (content being taught), delivery (modes used to disseminate information), time dedicated to the topic, and opinions of educators were explored. Method: A cross-sectional survey was emailed to 36 educators at Canadian universities. The survey questions related to the nature, delivery, and time dedicated to SOT exercise prescription, and the opinions of educators. Results: The response rate was 93%. Educators reported that lung and heart transplantation were taught the most, followed by kidney and liver, with little to no emphasis on pancreas transplants. This material was mainly taught at the graduate level and as part of cardiopulmonary courses with minimal emphasis on practical skills. Aerobic exercise is the main exercise prescription being taught. The main barrier to offering more SOT prescription education experienced by educators was the lack of available class time. Conclusions: SOT exercise prescription is not extensively covered in PT curricula and does not include all organ groups to the same extent. Students have few practical opportunities, which are important to gain the abilities and confidence to treat this population. The development of a continuing education course could promote greater knowledge.

Objectif : évaluer la portée de l'éducation fournie par les programmes de physiothérapie des universités canadiennes pour l'entrée en pratique à l'égard des prescriptions d'exercices aux patients ayant une transplantation d'organe plein (TOP). Les auteurs ont exploré la nature (matière enseignée), la prestation (modes de diffusion de l'information), le temps consacré au sujet et les avis des éducateurs sur la question. Méthodologie : les auteurs ont envoyé un sondage transversal par courriel à 36 éducateurs d'universités canadiennes. Les questions du sondage portaient sur la nature, la prestation, le temps consacré aux prescriptions d'exercices aux TOP et les avis des éducateurs. Résultats : le taux de réponse s'est élevé à 93 %. Les éducateurs ont indiqué que les transplantations des poumons et du cœur étaient les plus enseignées, suivies des reins et du foie, et que celles du pancréas étaient très peu abordées, sinon pas du tout. Cette matière était surtout enseignée aux cycles supérieurs, dans le cadre de cours cardiorespiratoires qui s'attardaient très peu aux habiletés pratiques. L'exercice aérobique était la principale prescription d'exercices enseignée. Selon les éducateurs, le manque de temps en classe était le principal obstacle à l'offre d'une période d'éducation plus prolongée sur les prescriptions aux TOP. Conclusions : les prescriptions d'exercices aux TOP ne sont pas approfondies dans les programmes de physiothérapie et n'accordent pas la même importance à tous les groupes d'organes. Les étudiants ont peu de possibilités d'exercice pratique, ce qui est toutefois important pour acquérir les habiletés et la confiance nécessaires pour traiter cette population. La création d'une formation continue pourrait favoriser l'accroissement des connaissances.

Prognostic value of simple measures of physical function and muscle strength in COPD: A systematic review.

PURPOSE: There has been an increased interest in simple measures of physical function and muscle strength that can be used in all clinical settings to assess individuals with chronic obstructive pulmonary disease (COPD) and predict their prognosis. The main objective was to examine the prognostic value of simple measures of physical function and muscle strength in relation to exacerbation, hospitalization and mortality in individuals with COPD. METHODS: Medline, EMBASE, Cochrane and Web of Science were searched. We included prospective observational studies that examined the prognostic value of simple performed-based tests or self-reported measures of physical function or muscle strength in relation to exacerbation, hospitalization and mortality in individuals with COPD. RESULTS: Seven articles met the inclusion criteria. The most commonly used tests were the handgrip strength (HGS) (n = 4) and 1-min sit-to-stand (STS) (n = 2). There were considerable variations in terms of characteristics of patients included, setting of recruitment, type of tests used, duration of follow-up and outcome measures of interest. The majority of the studies were classified as having "fair" or "poor" methodological quality. CONCLUSIONS: There is a limited number of studies examining the prognostic value of simple measures of physical function and muscle strength in relation to exacerbations, hospitalizations and mortality in individuals with COPD. To date, the HGS and 1-min STS tests are the most studied tests and seem to be suitable for prognosis purposes in individuals with COPD. However, more studies with better methodological quality are needed to confirm these findings.

C-reactive protein and blood pressure variability in type 2 hypertensive diabetic patients.

OBJECTIVE: Increased blood pressure (BP) variability and inflammation are included among the factors recognized as potential predictors of cardiovascular events in type 2 diabetes and hypertension. This study aimed to evaluate whether C-reactive protein (CRP) is associated with increased BP variability in diabetic-hypertensive patients. PATIENTS AND METHODS: We carried out a cross-sectional study with 285 diabetic-hypertensive patients, evaluating laboratory characteristics and 24-h ambulatory BP monitoring. SD, coefficient of variation (CV%), time-rate index of 24-h systolic BP (SBP), and 24-h BP patterns were evaluated. Pearson's χ-test, Student's t-test, and the Mann-Whitney test were used to compare the groups. Groups were defined by CRP of up to 3 mg/l (low) and more than 3 mg/l (high). RESULTS: The age of the patients was 59 (54-62) years; 101 (35%) were men. There was an increase in office SBP [137 (127-148) vs. 145 (130-157) mmHg] and DBP [79 (73-86) vs. 82 (76-91) mmHg] in the high CRP group. Blood pressure variability indexes were not different among groups [SD: 11.2 (9-15) vs. 12.2 (10-15) mmHg; CV%: 8.6 (7-11) vs. 9.4 (7-12); time rate: 0.55±0.12 vs.12.2 (10-15) mmHg/min]. In addition, BMI (29.3±3.8 vs. 30.9±3.6 kg/m), total cholesterol [166 (148-190) vs. 177 (156-210) mg/dl], and HbA1c [7.5% (6.6-8.9) vs.8.3% (7.1-9.9)] were higher in the high CRP group. CONCLUSION: In patients with diabetes and hypertension, higher CRP levels are linked to cardiometabolic derangements, although they are not associated with increased BP variability.

Web-Based Self-Management Guide for Kidney Transplant Recipients (The Getting on With Your Life With a Transplanted Kidney Study): Protocol for Development and Preliminary Testing.

BACKGROUND: Although it is well known that compared with dialysis, kidney transplantation improves the quality of life (QoL) of patients with end-stage renal disease, posttransplant recovery of physical health and other aspects of QoL remain well below age- and sex-matched norms. In addition, most transplant recipients are not physically active even years after the transplant and face several barriers to engaging in physical activity (PA). This is of concern as low levels of PA in transplant recipients has been associated with increased risk of mortality and poor graft function. Optimization of QoL needs a team approach involving the patients and the members of the health care team. While members of the health care team are focused on optimizing the biological responses to transplant, patients may have few or no tools at their disposal to engage in behaviors that optimize QoL. To accomplish the need of supporting these patients in the self-management of their condition and to facilitate engagement with PA, new tools tailored to this population are required. OBJECTIVE: The aim of this protocol study is to develop a Web-based, patient-centered self-management intervention to promote a healthy lifestyle, increase daily PA, and improve QoL in kidney transplant recipients. METHODS: We will use the Obesity-Related Behavioral Intervention Trials model for developing behavioral treatments for chronic diseases to guide the proposed project. We will follow a modified version of the iterative 10-step process that was used to develop educational material for people with multiple sclerosis. The development of the intervention will occur in partnership with patients and a multidisciplinary team of clinicians and researchers. A comprehensive needs assessment including data from our pilot study, literature review, and focus groups will be conducted. The focus groups will be conducted with 6 to 10 participants for each type of stakeholders: patients and professional experts to identify areas of concerns of kidney transplant recipients that are appropriate to address through self-management. The areas of concern identified through the assessment needs will be included in the website. RESULTS: This study has received funding from the Kidney Foundation of Canada for 2 years (2018-2020) and was recently granted ethics approval. Investigators have begun conducting the needs assessment described in step 1 of the study. The study is expected to be completed by the end of 2020. CONCLUSIONS: This will be the first comprehensive, evidence- and experience-based self-management program for kidney transplant recipients. Once the intervention is developed, we anticipate improvements in patient experience, shared decision making, daily PA, QoL, and, in future studies, improvements in health outcomes and demonstrations of cost savings in posttransplant care. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/13420.

Correlation between Very Short and Short-Term Blood Pressure Variability in Diabetic-Hypertensive and Healthy Subjects.

BACKGROUND: Blood pressure (BP) variability can be evaluated by 24-hour ambulatory BP monitoring (24h-ABPM), but its concordance with results from finger BP measurement (FBPM) has not been established yet. OBJECTIVE: The aim of this study was to compare parameters of short-term (24h-ABPM) with very short-term BP variability (FBPM) in healthy (C) and diabetic-hypertensive (DH) subjects. METHODS: Cross-sectional study with 51 DH subjects and 12 C subjects who underwent 24h-ABPM [extracting time-rate, standard deviation (SD), coefficient of variation (CV)] and short-term beat-to-beat recording at rest and after standing-up maneuvers [FBPM, extracting BP and heart rate (HR) variability parameters in the frequency domain, autoregressive spectral analysis]. Spearman correlation coefficient was used to correlate BP and HR variability parameters obtained from both FBPM and 24h-ABPM (divided into daytime, nighttime, and total). Statistical significance was set at p < 0.05. RESULTS: There was a circadian variation of BP levels in C and DH groups; systolic BP and time-rate were higher in DH subjects in all periods evaluated. In C subjects, high positive correlations were shown between time-rate index (24h-ABPM) and LF component of short-term variability (FBPM, total, R = 0.591, p = 0.043); standard deviation (24h-ABPM) with LF component BPV (FBPM, total, R = 0.608, p = 0.036), coefficient of variation (24h-ABPM) with total BPV (FBPM, daytime, -0.585, p = 0.046) and alpha index (FBPM, daytime, -0.592, p = 0.043), time rate (24h-ABPM) and delta LF/HF (FBPM, total, R = 0.636, p = 0.026; daytime R = 0,857, p < 0.001). Records obtained from DH showed weak positive correlations. CONCLUSIONS: Indices obtained from 24h-ABPM (total, daytime) reflect BP and HR variability evaluated by FBPM in healthy individuals. This does not apply for DH subjects.

White coat effect and masked uncontrolled hypertension in treated hypertensive-diabetic patients: Prevalence and target organ damage.

BACKGROUND: The association between hypertensive phenotypes of controlled hypertension (CH), white-coat effect (WCE), masked uncontrolled hypertension (MUH) and sustained hypertension (SH) with target organ damage have not been clearly established in diabetic hypertensive treated patients. The present study aims to evaluate the prevalence of the four phenotypes considering the current cut-off points for office and 24 h-ambulatory blood pressure monitoring (ABPM) and the association with left ventricle hypertrophy (LVH), diastolic function and nephropathy. METHODS: Cross-sectional study with 304 patients on anti-hypertensive treatment aged 57.6 ± 6.1 years, who were submitted to ABPM and echocardiography. They were classified into CH (normal office BP and ABPM), WCE (high office BP and normal ABPM), MUH (normal office BP and high ABPM), and SH (high office BP and ABPM). RESULTS: Median HbA1c and diabetes duration were 7.9% (6.8-9.2), and 10 years (5-16), respectively. Prevalences of CH, WCE, MUH and SH were 27.3%, 17.1%, 18.8%, and 36.8%. MUH prevalence was higher than previously described. There was a significant increasing trend across the four groups in variables related to LVH (P < 0.001 for trend). There was not a clear "dose-response" relationship of the four hypertensive phenotypes with nephropathy and diastolic function. CONCLUSION: The use of ABPM beyond the traditional cardiovascular risk stratification tools has limitations, but is still useful in high-risk patients. Longitudinal studies could better evaluate the role of the use of ABPM in this scenario. Cut-off points for normality of office and ABPM influence the prevalences of WCH and MUH.

Association between erectile dysfunction and echocardiographic variables of ventricular hypertrophy and diastolic function in hypertensive patients with type 2 diabetes mellitus: a cross-sectional study.

BACKGROUND: This study was conducted among individuals with diabetes and hypertension in order to assess the prevalence of erectile dysfunction (ED) and the association between ED and cardiovascular risk variables such as echocardiographic changes. METHODS: We evaluated 114 men with type 2 diabetes mellitus and hypertension. ED was assessed by International Index of Erectile Function (IIEF-5) score. Clinical and laboratory variables were evaluated, including C-reactive protein (CRP), ambulatory blood pressure monitoring (ABPM), ankle brachial index (ABI) and transthoracic echocardiography. Comparisons between patients with ED (IIEF-5 < 22) and without ED (IIEF-5 ≥ 22) were performed. RESULTS: Patients were 56.8 ± 5.7 years-old, systolic and diastolic blood pressure were 150.7 ± 19.5 mmHg and 85.4 ± 11.4 mmHg, respectively, and HbA1c was 8.0 ± 1.7%. The majority (74.6%) of patients had ED. Levels of CRP, ABPM values and ABI were similar between men with and without ED. Echocardiography variables related to cardiac chamber diameters, left ventricular hypertrophy and diastolic function were similar between groups, except there was a slight lower left ventricular ejection fraction in men with ED (64.9 ± 7.3 vs 68.1 ± 3.9%, P = 0.004). CONCLUSIONS: In high cardiovascular risk hypertensive individuals with type 2 diabetes, ED is highly prevalent as expected, but its presence is associated with neither echocardiographic variables, nor other cardiovascular risk factors.

Correlation between Very Short and Short-Term Blood Pressure Variability in Diabetic-Hypertensive and Healthy Subjects / Correlação entre a Variabilidade da Pressão Arterial de Muito Curto Prazo e Curto Prazo em Indivíduos Diabéticos-Hipertensos e Saudáveis

Abstract Background: Blood pressure (BP) variability can be evaluated by 24-hour ambulatory BP monitoring (24h-ABPM), but its concordance with results from finger BP measurement (FBPM) has not been established yet. Objective: The aim of this study was to compare parameters of short-term (24h-ABPM) with very short-term BP variability (FBPM) in healthy (C) and diabetic-hypertensive (DH) subjects. Methods: Cross-sectional study with 51 DH subjects and 12 C subjects who underwent 24h-ABPM [extracting time-rate, standard deviation (SD), coefficient of variation (CV)] and short-term beat-to-beat recording at rest and after standing-up maneuvers [FBPM, extracting BP and heart rate (HR) variability parameters in the frequency domain, autoregressive spectral analysis]. Spearman correlation coefficient was used to correlate BP and HR variability parameters obtained from both FBPM and 24h-ABPM (divided into daytime, nighttime, and total). Statistical significance was set at p < 0.05. Results: There was a circadian variation of BP levels in C and DH groups; systolic BP and time-rate were higher in DH subjects in all periods evaluated. In C subjects, high positive correlations were shown between time-rate index (24h-ABPM) and LF component of short-term variability (FBPM, total, R = 0.591, p = 0.043); standard deviation (24h-ABPM) with LF component BPV (FBPM, total, R = 0.608, p = 0.036), coefficient of variation (24h-ABPM) with total BPV (FBPM, daytime, -0.585, p = 0.046) and alpha index (FBPM, daytime, -0.592, p = 0.043), time rate (24h-ABPM) and delta LF/HF (FBPM, total, R = 0.636, p = 0.026; daytime R = 0,857, p < 0.001). Records obtained from DH showed weak positive correlations. Conclusions: Indices obtained from 24h-ABPM (total, daytime) reflect BP and HR variability evaluated by FBPM in healthy individuals. This does not apply for DH subjects.

Resumo Fundamento: A variabilidade da pressão arterial (PA) pode ser avaliada por meio da monitorização ambulatorial da PA em 24 horas (MAPA-24h), mas sua concordância com os resultados da medição da PA digital (MPAD) ainda não foi estabelecida. Objetivo: O objetivo deste estudo foi comparar os parâmetros da variabilidade a curto prazo (MAPA-24h) com a variabilidade da PA a muito curto prazo (MPAD) em sujeitos saudáveis (C) e diabéticos-hipertensos (DH). Métodos: Estudo transversal com 51 sujeitos DH e 12 sujeitos C que se submeteram a MAPA-24h [extraindo time rate, desvio padrão (SD) e coeficiente de variação (CV)] e registro batimento-a-batimento em repouso e após manobra de manobra de ortostatismo ativo [MPAD, extraindo parâmetros de variabilidade da PA e da frequência cardíaca (FC) no domínio da frequência, análise espectral por modelagem autoregressiva]. O coeficiente de correlação de postos de Spearman foi utilizado para correlacionar os parâmetros de variabilidade de PA e FC obtidos tanto da MPAD quanto da MAPA-24h (dividida em dia, noite e total). A significância estatística foi estabelecida em p < 0.05. Resultados: Houve uma variação circadiana dos níveis de PA nos grupos C e DH; A PA sistólica e a taxa de tempo foram maiores em indivíduos DH em todos os períodos avaliados. Em indivíduos C, foram apresentadas altas correlações positivas entre o índice de taxa de tempo (MAPA-24h) e o componente de baixa frequência (LF, do inglês low frequency) da variabilidade de curto prazo (MPAD, total, R = 0,591, p = 0,043); desvio padrão (MAPA-24h) com o componente de LF VPA (MPAD, total, R = 0,608, p = 0,036), coeficiente de variação (24h-ABPM) com VPA total (MPAD, dia, -0,585, p = 0,046) e índice alfa (MPAD, dia, -0,592, p = 0,043), taxa de tempo (MAPA-24h) e delta LF/HF (MPAD, total, R = 0,636, p = 0,026; dia R = 0,857, p < 0,001). Os registros obtidos dos pacientes DH apresentaram correlações positivas fracas. Conclusões: Os índices obtidos a partir da MAPA-24h (total, durante o dia) refletem a variabilidade da PA e da FC avaliada pela MPAD em indivíduos saudáveis, o que não se aplica a indivíduos DH.

Obstructive sleep apnea, detected by the Berlin Questionnaire: an associated risk factor for coronary artery disease.

Obstructive sleep apnea (OSA), a risk factor for coronary artery disease, remains under diagnosed. We investigated if OSA identified by the Berlin Questionnaire (BQ) is associated with the risk of coronary artery disease. Cases were patients referred for elective coronariography. The cases were classified with significant coronary lesions (stenosis ≥ 50% in an epicardial coronary) or without significant coronary lesions. Controls were selected from a population-based sample. Positive BQ results were identified in 135 (41.2%) of 328 cases, in contrast with 151 (34.4%) of 439 control subjects (p = 0.03). In a multinomial logistic analysis, the risk for OSA identified by the BQ was independently associated with coronary artery disease in cases with lesions of at least 50% (OR = 1.53; 95%CI: 1.02-2.30; p = 0.04). The risk from OSA identified by the BQ was higher in younger subjects (40-59 years) (OR = 1.76; 95%CI: 1.05-2.97; p = 0.03) and in women (OR = 3.56; 95%CI: 1.64-7.72; p = 0.001). In conclusion, OSA identified by the BQ greatly increases the risks of coronary artery disease in patients having significant coronary artery lesions indicated by anangiogram, particularly in younger individuals and in women.

Prevalence of resistant hypertension in non-elderly adults: prospective study in a clinical setting.

BACKGROUND: In face of variable definitions and sampling criteria, the real prevalence of resistant hypertension in a clinical setting is unknown. OBJECTIVE: We investigated the prevalence of true resistant hypertension in an outpatient hypertension clinic. METHODS: True resistant hypertension was diagnosed when white coat phenomenon, lack of compliance and secondary hypertension were excluded in patients with blood pressure ≥ 140/90 mmHg in two consecutive visits, despite to be using three blood pressure-lowering agents, including a diuretic. RESULTS: In the total, 606 patients, with 35 to 65 years of age, mostly women, with BP of 156.8 ± 23.8 mmHg by 91.9 ± 15.6 mmHg and a BMI of 29.7 ± 5.9 Kg/m² were sequentially evaluated. One hundred and six patients using three BP drugs had uncontrolled blood pressure (17.5% of the whole sample) in the first visit. Eighty-six patients (81% of the patients with uncontrolled BP in the first evaluation) returned for the confirmatory evaluation. Twenty-five had controlled BP, 21 had evidence of low adherence to treatment, 13 had white coat phenomenon and 9 had secondary hypertension, leaving only 18 patients (20.9% of those uncontrolled in the confirmatory visit and 3% of the whole sample) with true resistant hypertension. Considering patients with secondary hypertension as cases of resistant hypertension, the prevalence of resistant hypertension increased to 4.5%. CONCLUSION: The frequency of patients with true resistant hypertension in non-elderly patients is low in a clinical setting, and is not substantially increased with the inclusion of patients with secondary hypertension.

Obstructive sleep apnea, detected by the Berlin Questionnaire: an associated risk factor for coronary artery disease / Risco de apneia obstrutiva do sono detectado pelo Questionário de Berlim está associado com doença arterial coronariana

Obstructive sleep apnea (OSA), a risk factor for coronary artery disease, remains under diagnosed. We investigated if OSA identified by the Berlin Questionnaire (BQ) is associated with the risk of coronary artery disease. Cases were patients referred for elective coronariography. The cases were classified with significant coronary lesions (stenosis > 50% in an epicardial coronary) or without significant coronary lesions. Controls were selected from a population-based sample. Positive BQ results were identified in 135 (41.2%) of 328 cases, in contrast with 151 (34.4%) of 439 control subjects (p = 0.03). In a multinomial logistic analysis, the risk for OSA identified by the BQ was independently associated with coronary artery disease in cases with lesions of at least 50% (OR = 1.53; 95%CI: 1.02-2.30; p = 0.04). The risk from OSA identified by the BQ was higher in younger subjects (40-59 years) (OR = 1.76; 95%CI: 1.05-2.97; p = 0.03) and in women (OR = 3.56; 95%CI: 1.64-7.72; p = 0.001). In conclusion, OSA identified by the BQ greatly increases the risks of coronary artery disease in patients having significant coronary artery lesions indicated by anangiogram, particularly in younger individuals and in women.

Síndrome da apneia obstrutiva do sono (SAOS), fator de risco para doença arterial coronariana, permanece subdiagnosticada. Investigou-se se o risco de SAOS pelo Questionário de Berlim (QB) associa-se com doença arterial coronariana. Casos foram pacientes encaminhados para coronariografia eletiva, classificados em casos com lesão significativa (estenose > 50%) ou sem lesões significativas. Controles foram selecionados em amostra populacional. QB foi positivo em 135 (41,2%) de 328 casos, em contraste com 151 (34,4%) de 439 controles (p = 0,03). Em análise logística multinomial, o risco de SAOS identificado pelo QB associou-se com doença arterial coronariana exclusivamente nos casos com lesões de pelo menos 50% (OR: 1,53; IC95%: 1,02-2,30; p = 0,04). Em indivíduos com lesões significativas, o risco de SAOS pela QB foi maior entre os que têm 40-59 anos (OR: 1,76; IC95%: 1,05-2,97; p = 0,03) e em mulheres (OR: 3,56; IC95%: 1,64-7,72; p = 0,001). Em conclusão, alto risco para a SAOS identificados pela QB associa-se a risco de lesões coronarianas significativas na angiografia, particularmente em indivíduos mais jovens e em mulheres.

Prevalência de hipertensão resistente em adultos não idosos: estudo prospectivo em contexto ambulatorial / Prevalence of resistant hypertension in non-elderly adults: prospective study in a clinical setting

FUNDAMENTO: Em face de definições de variáveis e critérios de amostragem, a real prevalência de hipertensão resistente em ambiente clínico é desconhecida. OBJETIVO: Investigar a prevalência de real hipertensão resistente em uma clínica de hipertensão arterial. MÉTODOS: Hipertensão resistente verdadeira foi diagnosticada quando fenômeno do jaleco branco, insuficiente adesão ao tratamento e hipertensão secundária foram excluídos em pacientes com Pressão Arterial (PA) ≥ 140/90 mmHg em duas visitas consecutivas, usando três de fármacos anti-hipertensivos, incluindo um diurético. RESULTADOS: No total, 606 pacientes, com 35 a 65 anos de idade, a maioria mulheres, com PA de 156,8 ± 23,8 mmHg por 91,9 ± 15,6 mmHg e IMC de 29,7 ± 5,9 Kg/m² foram sequencialmente avaliados. Cento e seis pacientes em uso de três agentes anti-hipertensivos estavam com pressão arterial não controlada (17,5% da amostra total) na primeira visita. Oitenta e seis pacientes (81% dos pacientes com PA não controlada na primeira avaliação) retornaram para a avaliação de confirmação: 25 estavam com PA controlada; 21 tinham evidência de baixa adesão ao tratamento; 13 tinham fenômeno do jaleco branco; e 9 tinham hipertensão secundária, restando 18 pacientes (20,9% dos não controlados na consulta de confirmação e 3% da amostra total) com verdadeira hipertensão resistente. Considerando pacientes com hipertensão secundária como casos de hipertensão refratária, a prevalência de hipertensão resistente aumentou para 4,5%. CONCLUSÃO: A frequência de hipertensão resistente verdadeira em pacientes não idosos é baixa em um ambiente clínico, e não é substancialmente aumentada com a inclusão de pacientes com hipertensão secundária. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0).

BACKGROUND: In face of variable definitions and sampling criteria, the real prevalence of resistant hypertension in a clinical setting is unknown. OBJECTIVE: We investigated the prevalence of true resistant hypertension in an outpatient hypertension clinic. METHODS: True resistant hypertension was diagnosed when white coat phenomenon, lack of compliance and secondary hypertension were excluded in patients with blood pressure ≥ 140/90 mmHg in two consecutive visits, despite to be using three blood pressure-lowering agents, including a diuretic. RESULTS: In the total, 606 patients, with 35 to 65 years of age, mostly women, with BP of 156.8 ± 23.8 mmHg by 91.9 ± 15.6 mmHg and a BMI of 29.7 ± 5.9 Kg/m² were sequentially evaluated. One hundred and six patients using three BP drugs had uncontrolled blood pressure (17.5% of the whole sample) in the first visit. Eighty-six patients (81% of the patients with uncontrolled BP in the first evaluation) returned for the confirmatory evaluation. Twenty-five had controlled BP, 21 had evidence of low adherence to treatment, 13 had white coat phenomenon and 9 had secondary hypertension, leaving only 18 patients (20.9% of those uncontrolled in the confirmatory visit and 3% of the whole sample) with true resistant hypertension. Considering patients with secondary hypertension as cases of resistant hypertension, the prevalence of resistant hypertension increased to 4.5%. CONCLUSION: The frequency of patients with true resistant hypertension in non-elderly patients is low in a clinical setting, and is not substantially increased with the inclusion of patients with secondary hypertension. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0).