scholarly journals Predicting prognosis in patients with stroke treated with intravenous alteplase through the 24‐h trajectory of blood pressure changes

2021 ◽  
Author(s):  
Kaiting Fan ◽  
Jie Zhao ◽  
Hong Chang ◽  
Xiaojuan Wang ◽  
Hui Yao ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Intravenous Alteplase ◽  
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.

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

Post Prandial Blood Pressure Changes Following High Fat and High Carbohydrate Meals in Young and Elderly Persons

1989 ◽  
Vol 77 (s21) ◽  
pp. 12P-12P
Author(s):  
JF Potter ◽  
D Heseltine ◽  
OFW James
Keyword(s):  
Blood Pressure ◽  
Elderly Persons ◽  
High Fat ◽  
High Carbohydrate ◽  
Pressure Changes

The Effect of Dietary Manipulation on Post Prandial Blood Pressure Changes in the Elderly

1988 ◽  
Vol 75 (s19) ◽  
pp. 47P-47P
Author(s):  
J.F. Potter ◽  
D. Heseltine ◽  
G. Hartley ◽  
O.F.W. James
Keyword(s):  
Blood Pressure ◽  
The Elderly ◽  
Dietary Manipulation ◽  
Pressure Changes
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