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Related Concept Videos

Assessment of blood pressure in brachial artery(two-step method)01:23

Assessment of blood pressure in brachial artery(two-step method)

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Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
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Pre-Procedural Guidelines for Assessing Blood Pressure01:10

Pre-Procedural Guidelines for Assessing Blood Pressure

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Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
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Special considerations while measuring blood pressure01:28

Special considerations while measuring blood pressure

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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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Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

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To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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Measurement of Blood Pressure01:17

Measurement of Blood Pressure

1.8K
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
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Sites for measruring blood pressure01:21

Sites for measruring blood pressure

2.7K
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
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Related Experiment Video

Updated: Oct 21, 2025

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension
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Relation between elevated first SBP from baseline (delta SBP) and postoperative outcome.

Yan Zhou1, Lin Liu2, Fangfang Fan2

  • 1Department of Anesthesiology and Critical Care Medicine.

Journal of Hypertension
|September 8, 2021
PubMed
Summary

Elevated blood pressure in the operating room, even with normal resting blood pressure, increases cardiovascular risk. A systolic blood pressure (SBP) increase over 49 mmHg during surgery is linked to major adverse cardiac events (MACE).

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Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research
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Ultrasound Assessment of Endothelial-Dependent Flow-Mediated Vasodilation of the Brachial Artery in Clinical Research
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Area of Science:

  • Cardiology
  • Anesthesiology
  • Perioperative Medicine

Background:

  • Hypertension is a known risk factor for adverse postoperative outcomes.
  • The specific risk associated with intraoperative blood pressure elevation in patients with normal resting blood pressure remains unclear.

Purpose of the Study:

  • To investigate the relationship between the change in systolic blood pressure (delta SBP) from baseline to the operating room and the incidence of postoperative major adverse cardiac events (MACE).
  • To identify a potential threshold for delta SBP that independently predicts MACE in patients with normal baseline blood pressure undergoing noncardiac surgery.

Main Methods:

  • Retrospective cohort study of 55,563 patients undergoing elective noncardiac surgery.
  • Analysis of the difference between first operating room SBP and baseline SBP (delta SBP).
  • Multivariate logistic regression and propensity score weighting to assess the association between delta SBP and MACE.

Main Results:

  • Postoperative MACE occurred in 4.1% of surgeries.
  • A delta SBP threshold of 49 mmHg was identified.
  • An increase in SBP over 49 mmHg was significantly associated with increased MACE risk (adjusted OR 1.35; P < 0.001).

Conclusions:

  • Intraoperative systolic blood pressure increase independently contributes to elevated postoperative cardiovascular risk.
  • A rise in SBP exceeding 49 mmHg from baseline during surgery is a significant predictor of MACE in patients undergoing elective noncardiac procedures.