Ambulatory blood pressure in 199 normal subjects, a collaborative study

1984 ◽  
pp. 117-127 ◽  
Author(s):  
John M. Wallace ◽  
William E. Thornton ◽  
Harold L. Kennedy ◽  
Thomas G. Pickering ◽  
Gregory A. Harshfield ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Ambulatory Blood Pressure ◽  
Collaborative Study ◽  
Normal Subjects

scholarly journals Ambulatory blood pressure pattern in overweight and obese subjects: a prospective, cross-sectional study

2019 ◽  
Vol 7 (6) ◽  
pp. 2168
Author(s):  
Shuchi Singh ◽  
Akash C. Lohakare
Keyword(s):  
Blood Pressure ◽  
Ambulatory Blood Pressure ◽  
Tertiary Care ◽  
Normal Subjects ◽  
Cross Sectional Study ◽  
P Value ◽  
Sectional Study ◽  
Cross Sectional ◽  
Anthropometric Parameter ◽  
Obese Subjects

Background: Obesity is widely described as a leading cause of morbidity and mortality and is a known risk factor of many cardiovascular and non-cardiovascular diseases including hypertension. The aim of this study was to analyze the pattern of ambulatory blood pressure in overweight and obese subjects.Methods: This was a prospective, cross-sectional study performed over a period of 1 year in 95 subjects attending the Department of Medicine of tertiary care teaching institute. Anthropometric measures such as weight, height, body mass index (BMI), and waist circumference (WC) were recorded. Ambulatory blood pressure monitoring over a period of 24-hrs was performed in each individual and values were recorded. Comparison between normal subjects and overweight and/or obese subjects was done in terms of various ambulatory BP parameters.Results: Based on BMI, significantly higher proportion of females were obese (p-value = 0.020), as compared to males. Based on both BMI and WC, significant proportion of overweight and obese subjects had higher 24-hr SBP (p-value < 0.001) and 24-hr DBP (p-value = 0.001); higher day-time SBP (p-value < 0.001); higher night-time SBP (p-value < 0.001); and widening of 24-hr pulse pressure (> 50 mmHg) (p-value < 0.001) as compared to normal subjects. However, among various abnormal ABPM parameters, majority of the parameters revealed more incidence of BP abnormalities with increased BMI than with increased WC. Thus, BMI appeared to be a better anthropometric parameter than WC.Conclusions: The findings of the present study confirm that obesity in apparently non-hypertensive subjects leads to rise in both SBP and DBP. Moreover, it is the systolic part of ABPM which probably predicts the cardiovascular morbidity in overweight and obese subjects.

scholarly journals The Corticotropin-Releasing Hormone Stimulation Test in White Coat Hypertension

2002 ◽  
Vol 87 (8) ◽  
pp. 3672-3675 ◽  
Author(s):  
Isao Tabeta ◽  
Hajime Ueshiba ◽  
Takamasa Ichijo ◽  
Naoki Hiroi ◽  
Fumiatu Yakushiji ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Ambulatory Blood Pressure ◽  
Normal Subjects ◽  
White Coat ◽  
White Coat Hypertension ◽  
The Status ◽  
Stimulation Tests ◽  
The Mean

This study was undertaken to clarify the status of the ACTH and cortisol responses to CRH in patients with white coat hypertension. White coat hypertension was defined as a difference between clinic blood pressure and ambulatory blood pressure of at least 20 mm Hg for systolic blood pressure and/or 10 mm Hg for diastolic blood pressure. CRH stimulation tests were performed between 1400 and 1700 h in 11 patients with white coat hypertension (4 males and 7 females) and 11 normal subjects (4 males and 7 females). Blood pressure and heart rate were measured 15 min before, at time zero, and 15, 30, 60, and 120 min after initiation of the CRH stimulation tests. In white coat hypertension, both the mean systolic blood pressure (162 ± 15 mm Hg) and diastolic blood pressure (97 ± 10 mm Hg) were higher than in controls (P &lt; 0.01) on 3 occasions. The mean ambulatory blood pressure for the 24-h period of the test did not differ between patients with white coat hypertension and normal subjects. Basal levels of ACTH and cortisol did not differ between patients with white coat hypertension and control subjects. However, challenge with CRH elevated ACTH (30 min) and cortisol (30, 60, and 120 min) to levels higher than those in controls, with the net increase in both ACTH and cortisol being higher than that in controls over the study period (P &lt; 0.01). These significant responses suggest that white coat hypertension is associated with hypothalamic-pituitary-adrenal hypersensitivity to stressors.

Relationship Between Ambulatory Blood Pressure and Albuminuria in Normal Subjects

1991 ◽  
Vol 4 (12 Pt 1) ◽  
pp. 959-962 ◽  
Author(s):  
R. E. Gilbert ◽  
P. Phillips ◽  
G. Jerums
Keyword(s):  
Blood Pressure ◽  
Ambulatory Blood Pressure ◽  
Normal Subjects

The effects of psychosocial influences on ambulatory blood pressure: Contrasting different measurement and data analytic strategies

1997 ◽  
Author(s):  
Thomas W. Kamarck ◽  
Saul S. Shiffman ◽  
Leslie Smithline ◽  
Hayley Thompson ◽  
Jeff Goodie ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Ambulatory Blood Pressure ◽  
Psychosocial Influences ◽  
Data Analytic

Heart Rate Signal Decomposition

2000 ◽  
Vol 39 (02) ◽  
pp. 200-203
Author(s):  
H. Mizuta ◽  
K. Yana
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Pressure Change ◽  
Normal Subjects ◽  
Signal Decomposition ◽  
Large Individual ◽  
Heart Rate Fluctuations ◽  
Type Pattern ◽  
Signal Cancellation ◽  
Pressure Changes

Abstract:This paper proposes a method for decomposing heart rate fluctuations into background, respiratory and blood pressure oriented fluctuations. A signal cancellation scheme using the adaptive RLS algorithm has been introduced for canceling respiration and blood pressure oriented changes in the heart rate fluctuations. The computer simulation confirmed the validity of the proposed method. Then, heart rate fluctuations, instantaneous lung volume and blood pressure changes are simultaneously recorded from eight normal subjects aged 20-24 years. It was shown that after signal decomposition, the power spectrum of the heart rate showed a consistent monotonic 1/fa type pattern. The proposed method enables a clear interpretation of heart rate spectrum removing uncertain large individual variations due to the respiration and blood pressure change.

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