scholarly journals Anthropometry and Blood Pressure Changes in a Caribbean Adolescent Population of African Ancestry. An Evaluation of Longitudinal Data Using a Multilevel Mixed Regression Approach

2018 ◽  
Author(s):  
S Nichols ◽  
F Cadogan
Keyword(s):  
Blood Pressure ◽  
Longitudinal Data ◽  
African Ancestry ◽  
Adolescent Population ◽  
Regression Approach ◽  
Mixed Regression ◽  
Pressure Changes

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.

Fibrinogen and Factor Vllag in Healthy Adolescents: The Floren-teen (Florence Teenager) Study

1996 ◽  
Vol 75 (05) ◽  
pp. 778-781 ◽  
Author(s):  
Domenico Prisco ◽  
Sandra Fedi ◽  
Tamara Brunelli ◽  
Anna Paola Cellai ◽  
Mohamed Isse Hagi ◽  
...  
Keyword(s):  
Risk Factors ◽  
Blood Pressure ◽  
Healthy Subjects ◽  
Cardiovascular Events ◽  
Independent Risk Factor ◽  
Factor Vii ◽  
Coronary Heart Disease Prevention ◽  
Familial History ◽  
Clear Cut ◽  
Adolescent Population

SummaryAt least five studies based on more than twenty thousand healthy subjects indicated that fibrinogen is an independent risk factor for cardiovascular events; less clear-cut is the relation between factor VII and risk for arterial thrombotic disorders, which was demonstrated in two of the three studies investigating this association. However, no study has investigated the behaviour of fibrinogen and factor VII in an adolescent population. In a study of Preventive Medicine and Education Program, fibrinogen (clotting method) and factor Vllag (ELISA), in addition to other metabolic parameters, life-style and familial history, were investigated in 451 students (313 females and 138 males, age 15-17 years) from two high schools of Florence. Fibrinogen levels were significantly higher in women than in men, whereas factor Vllag levels did not significantly differ. Both fibrinogen and factor Vllag significantly correlated with total cholesterol (p <0.05) while only fibrinogen correlated with body mass index (p <0.01). Factor Vllag was significantly correlated with systolic blood pressure (p <0.001). This study provides information on coagulation risk factors in a population of adolescents which may be of importance in planning coronary heart disease prevention programs.

scholarly journals Clinical Epidemiology of Systolic and Diastolic Orthostatic Hypotension in Patients on Peritoneal Dialysis

2021 ◽  
Vol 10 (14) ◽  
pp. 3075
Author(s):  
Claudia Torino ◽  
Rocco Tripepi ◽  
Maria Carmela Versace ◽  
Antonio Vilasi ◽  
Giovanni Tripepi ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Peritoneal Dialysis ◽  
Orthostatic Hypotension ◽  
Clinical Epidemiology ◽  
Hemodialysis Patients ◽  
Excess Death ◽  
Death Risk ◽  
Standardized Protocol ◽  
Pressure Changes ◽  
The Impact

Blood pressure changes upon standing reflect a hemodynamic response, which depends on the baroreflex system and euvolemia. Dysautonomia and fluctuations in blood volume are hallmarks in kidney failure requiring replacement therapy. Orthostatic hypotension has been associated with mortality in hemodialysis patients, but neither this relationship nor the impact of changes in blood pressure has been tested in patients on peritoneal dialysis. We investigated both these relationships in a cohort of 137 PD patients. The response to orthostasis was assessed according to a standardized protocol. Twenty-five patients (18%) had systolic orthostatic hypotension, and 17 patients (12%) had diastolic hypotension. The magnitude of systolic and diastolic BP changes was inversely related to the value of the corresponding supine BP component (r = −0.16, p = 0.056 (systolic) and r = −0.25, p = 0.003 (diastolic), respectively). Orthostatic changes in diastolic, but not in systolic, BP were linearly related to the death risk (HR (1 mmHg reduction): 1.04, 95% CI 1.01–1.07, p = 0.006), and this was also true for CV death (HR: 1.08, 95% CI 1.03–1.12, p = 0.001). The strength of this association was not affected by further data adjustment (p ≤ 0.05). These findings suggest that independent of the formal diagnosis of orthostatic hypotension, even minor orthostatic reductions in diastolic BP bear an excess death risk in this population.

PS 02-65 ASSOCIATION BETWEEN POSTPRANDIAL AND SLEEPING SYSTEMIC BLOOD PRESSURE CHANGES IN THE NON-DIABETIC ELDERLY

2016 ◽  
Vol 34 (Supplement 1) ◽  
pp. e121
Author(s):  
Fernando Garcia ◽  
Beatriz Fidale ◽  
Sebastião Ferreira-Filho
Keyword(s):  
Blood Pressure ◽  
Systemic Blood Pressure ◽  
Systemic Blood ◽  
Pressure Changes
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