Key result
Continuous non-invasive finger blood pressure monitoring signals were successfully obtained in 94% of adult ICU patients, yielding high-quality waveforms for 84% of the measurement time.
Why the study?
Arterial catheters cause complications in the ICU, and non-invasive continuous finger blood pressure monitors could be an alternative, but failure to obtain signals occurs in up to 12% of patients.
Does continuous non-invasive finger blood pressure monitoring provide successful signal acquisition in adult ICU patients?
Cohort (n=499)
Does continuous non-invasive finger blood pressure monitoring provide successful signal acquisition in adult ICU patients?
Continuous non-invasive finger blood pressure monitoring is feasible and yields high-quality signals in the vast majority of adult ICU patients, with no clinically relevant baseline characteristics precluding its use.
Answers are grounded in this paper and cite their sources.
Supports feasibility of continuous finger BP monitoring in adult ICU; leaves open need for outcome trials before adoption.
Abstract Background Arterial catheters are often used for blood pressure monitoring in the intensive care unit (ICU), but they can cause complications. Non-invasive continuous finger blood pressure monitors could serve as an alternative. However, failure to obtain finger blood pressure signals is reported in up to 12% of ICU patients. Objectives Our primary objective was to identify the success rate of finger blood pressure monitoring in ICU patients. Secondary objectives were to assess whether patient admission characteristics could be used to identify patients unsuitable for non-invasive blood pressure monitoring and to determine the quality of non-invasive blood pressure waveforms. Methods Retrospective observational study conducted in a cohort of 499 ICU patients. When available, the signal quality of the first hour of finger measurement was determined using an open-source waveform algorithm. Results Finger blood pressure signals were obtained in 94% of patients. These patients had a high quality blood pressure waveform for 84% of the measurement time. Patients without a finger blood pressure signal significantly more frequently had a history of kidney and vascular disease, were more often treated with inotropic agents, had lower hemoglobin levels, and had higher arterial lactate levels. Conclusions Finger blood pressure signals were obtained in nearly all ICU patients. Significant differences in baseline characteristics between patients with and without finger blood pressure signals were found, but they were not clinically relevant. The characteristics studied could therefore not be used to identify patients unsuitable for finger blood pressure monitoring.
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Schuurmans et al. (2023) conducted a cohort in Intensive care unit admission (n=499). Continuous non-invasive finger blood pressure monitoring vs. Patients without finger blood pressure signal was evaluated on Success rate of finger blood pressure monitoring. Continuous non-invasive finger blood pressure monitoring signals were successfully obtained in 94% of adult ICU patients, yielding high-quality waveforms for 84% of the measurement time.
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