24-hour blood pressure measurements: methodological and clinical problems

Area of Science:

• Cardiology
• Hypertension Research
• Medical Technology

Background:

• Sphygmomanometry has significant limitations for comprehensive blood pressure assessment.
• Intraarterial monitoring offers accuracy but is too invasive for routine clinical use.
• Noninvasive ambulatory blood pressure monitoring (ABPM) presents a viable alternative.

Purpose of the Study:

• To validate the noninvasiveness and accuracy of ABPM.
• To assess ABPM's impact on daily blood pressure profiles and nocturnal hypotension.
• To compare ABPM with sphygmomanometry in reflecting hypertension-related target organ damage.

Main Methods:

• Utilized intermittent cuff inflations for noninvasive BP measurements.
• Monitored patients over a 24-hour period.
• Conducted a cross-sectional study comparing ABPM and sphygmomanometry against target organ damage.

Main Results:

• Intermittent cuff inflations did not induce alerting reactions or alter the daily BP profile.
• ABPM preserved nocturnal hypotension and the natural day-night BP rhythm.
• 24-hour ABPM correlated more closely with hypertension-related target organ damage than sphygmomanometry.
• BP variability, in addition to average BP, is linked to target organ damage.

Conclusions:

• Noninvasive ABPM is a reliable method for assessing 24-hour BP without disrupting physiological rhythms.
• ABPM provides a more accurate reflection of hypertension-related target organ damage and risk prediction than traditional methods.
• Further prospective studies are needed, but ABPM shows promise for improved hypertension diagnosis and risk stratification.