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Blood Pressure Imbalances and Circulatory Shock

Blood Pressure Imbalances and Circulatory Shock

Disorders affecting blood volume, vascular tone, or vascular function can disrupt vascular homeostasis, including conditions like hypertension, hemorrhage, and shock.
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...

Special considerations while measuring blood pressure

Special considerations while measuring blood pressure

When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.

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Author Spotlight: Developing Innovative Therapeutic Strategies for Hemorrhagic Shock Research

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Standard reference values for the shock index during pregnancy.

Anderson Borovac-Pinheiro¹, Rodolfo C Pacagnella¹, Sirlei S Morais¹

¹Department of Obstetrics and Gynecology, School of Medical Sciences, University of Campinas, Campinas, Brazil.

International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics

|June 30, 2016

Summary

The shock index (SI), calculated as heart rate divided by systolic blood pressure, shows slight variations throughout pregnancy. These reference ranges for pregnant women are important for monitoring maternal health.

Keywords:

Hemorrhage Pregnancy Shock index Vital signs

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Area of Science:

Obstetrics and Gynecology
Cardiovascular Physiology
Maternal-Fetal Medicine

Background:

The shock index (SI) is a physiological marker correlating heart rate and blood pressure.
Understanding SI variations during pregnancy is crucial for assessing maternal well-being.
Existing data on SI reference ranges in pregnancy is limited.

Purpose of the Study:

To establish reference ranges for the shock index (SI) during pregnancy.
To assess the variation of SI throughout different gestational periods.
To investigate the influence of maternal age and BMI on SI during pregnancy.

Main Methods:

Retrospective cohort study of 192 low-risk pregnant women.
SI values analyzed from 1097 measurements between January 2012 and December 2013.
SI stratified by gestational age, maternal age, and BMI.

Main Results:

Mean SI ranged from 0.756 ± 0.127 (≤12 weeks) to 0.831 ± 0.144 (28-32 weeks).
SI values increased in the second and early third trimesters, then decreased at term.
Higher BMI was associated with lower SI values, with BMI being the most influential factor.

Conclusions:

Reference ranges for SI during pregnancy were established.
SI exhibits minor variations throughout gestation, with values slightly higher than in the general population.
These findings provide a basis for clinical interpretation of SI in pregnant individuals.