Korean J Anesthesiol.  2011 May;60(5):323-328. 10.4097/kjae.2011.60.5.323.

Study for the discrepancy of arterial blood pressure in accordance with method, age, body part of measurement during general anesthesia using sevoflurane

• Lee JH
• Kim JM
• Ahn KR
• Kim CS
• Kang KS
• Chung JH
• Chung JW
• Yoo SH

• KMID: 1780175
• DOI: http://doi.org/10.4097/kjae.2011.60.5.323

Abstract

BACKGROUND
Many pieces of previous research on measuring blood pressure (BP) using different methods focused on the disparity in the results. However, none of them dealt with the disparity caused by the difference in age and inhalation anesthetics. We attempted to find the variance in accordance with age, body part, and measuring methods (invasive vs noninvasive) and also studied how sevoflurane influences BP as the operation progresses.
METHODS
In sixty patients, we measured the arterial BP in the upper and lower limbs by noninvasive methods before inducing anesthesia. After induction, we used sevoflurane to maintain anesthesia, and injected catheters into the radial artery and dorsalis pedis artery to measure arterial pressure at every ten minute by both invasive and noninvasive methods.
RESULTS
The patients who were 40 or older showed significantly higher values in the systolic BP than the patients younger than 40. The values of systolic and diastolic BP measured by a noninvasive oscillometric method were meaningfully higher than those measured by an invasive method. As the operations progressed, the lower limbs showed higher systolic pressure than the upper limbs regardless of measuring methods, whereas the opposite is true for diastolic pressure.
CONCLUSIONS
The values in the arterial BP were measured high by noninvasive method. Systolic BP were estimated significantly high in the older patients and in the lower leg. Due to the effect of sevoflurane, the diastolic BP in the lower limbs becomes lower than that of upper limbs regardless of measuring methods, as the operation progresses.

Keyword

Blood pressure; Dorsalis pedis artery; Radial artery; Sevoflurane

MeSH Terms

Anesthesia
Anesthesia, General
Anesthetics, Inhalation
Arterial Pressure
Arteries
Blood Pressure
Catheters
Humans
Leg
Lower Extremity
Methyl Ethers
Radial Artery
Upper Extremity
Anesthetics, Inhalation
Methyl Ethers