scholarly journals Gender Differences in Vascular Compliance in Young, Healthy Subjects Assessed by Pulse Contour Analysis

2001 ◽  
Vol 3 (3) ◽  
pp. 145-152 ◽  
Author(s):  
Nathaniel Winer ◽  
James R. Sowers ◽  
Michael A. Weber
Keyword(s):  
Gender Differences ◽  
Healthy Subjects ◽  
Pulse Contour Analysis ◽  
Pulse Contour ◽  
Contour Analysis ◽  
Vascular Compliance

Finger Arterial versus Intrabrachial Pressure and Continuous Cardiac output during Head-up Tilt Testing in Healthy Subjects

1996 ◽  
Vol 91 (2) ◽  
pp. 193-200 ◽  
Author(s):  
Wilbert T. Jellema ◽  
Ben P. M. Imholz ◽  
Jeroen Van Goudoever ◽  
Karel H. Wesseling ◽  
Johannes J. Van Lieshout
Keyword(s):  
Blood Pressure ◽  
Cardiac Output ◽  
Stroke Volume ◽  
Healthy Subjects ◽  
Pulse Contour Analysis ◽  
Pulse Contour ◽  
Mean Blood Pressure ◽  
Contour Analysis ◽  
Head Up Tilt ◽  
The Difference

1. The aims of this study were to determine the clinical feasibility of continuous, non-invasive Finapres recordings as a replacement for intrabrachial pressure during a 30 min head-up tilt, and the reliability of continuous cardiac output computation by pulse contour analysis from the finger arterial versus the brachial waveform. 2. In eight healthy subjects a 30 min 70° passive head-up tilt was performed. Finger arterial (FINAP) and intrabrachial (IAP) pressures were measured simultaneously. Beat-to-beat changes in stroke volume were computed using a pulse contour algorithm. 3. Accuracy (the group-averaged FINAP—IAP difference) and precision (the SD of the difference) of Finapres measurements were 4 and 9 mmHg for systolic blood pressure, −5 and 9 mmHg for mean blood pressure and −5 and 9 mmHg for diastolic blood pressure. 4. The time course of the FINAP—IAP differences during head-up tilt showed a linear trend (P < 0.001 for all pressure levels). Averaged for the group, the difference increased 7 mmHg for mean blood pressure. The difference in stroke volume computed from FINAP and IAP was 0.3 ± 5% (mean ± SD), and independent of the duration of the tilt (P > 0.05). This difference did not change at low blood pressure levels (0.5 ± 6%). 5. The qualitative performance of the Finapres allows it to be used in the clinical setting as a monitor of sudden changes in blood pressure induced by a 30 min head-up tilt. Relative changes in stroke volume, as obtained by pulse contour analysis of the finger arterial waveform, closely follow intrabrachial values during long-duration head-up tilt and associated arterial hypotension.

Interpretation of Noninvasive and Invasive Information

2017 ◽  
Author(s):  
Borzoo Farhang ◽  
Erik P Anderson ◽  
Mark P Hamlin
Keyword(s):  
Critically Ill ◽  
Hemodynamic Monitoring ◽  
Critically Ill Patients ◽  
Pulse Contour Analysis ◽  
Pulse Contour ◽  
Response To Therapy ◽  
Contour Analysis ◽  
Central Venous ◽  
Arterial Blood ◽  
Pulmonary Arterial

Traditional, static measures of resuscitation, such as vital signs, central venous pressure, and pulmonary arterial pressure, provide momentary glimpses evolving hemodynamic states. In patients with shock, these measures of resuscitation are poor indicators of response to therapy. As a result, dynamic assessments of cardiovascular status are now used in critically ill patients to facilitate resuscitation. Some of these approaches focus on fluid responsiveness. These assessments allow care to be tailored to each patient’s response to interventions. An evolving aspect of hemodynamic monitoring is evaluation of the adequacy of tissue perfusion and oxygen delivery. In this review, we consider the use of arterial, central venous, and pulmonary arterial blood pressure monitoring; echocardiography; transesophageal Doppler technology; pulse contour analysis; bioimpedance and bioreactance; and partial rebreathing monitoring modalities to assess hemodynamic status in critically ill patients.  This review contains 22 figures, 5 tables, and 38 references. Key words: echocardiography, esophageal Doppler technology, invasive and noninvasive hemodynamic monitoring, pulse contour analysis, shock 

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