Post-ROSC peripheral perfusion index discriminates 30-day survival after out-of-hospital cardiac arrest

Savastano, Simone; Baldi, Enrico; Contri, Enrico; Pirro, Antonella De; Sciutti, Fabio; Compagnoni, Sara; Fracchia, Rosa; Primi, Roberto; Frigerio, Laura; Gentile, Francesca Romana; Visconti, Luigi Oltrona; Palo, Alessandra

doi:10.1007/s11739-020-02430-z

Cited by 15 publications

(13 citation statements)

References 26 publications

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“…However, we did not measure the cardiac output and autonomic nervous system to comment on the associated cardiac and nervous system status. Our findings corroborate those of Savastan et al who found the PI to be 4.3 (interquartile range = 2.9-6.2) among apparently healthy subjects with a median age of 42 (interquartile range = 33-47) years [ 18 ].…”

Section: Discussionsupporting

confidence: 92%

A Cross-Sectional Study on the Agreement of Perfusion Indexes Measured on Different Fingers by a Portable Pulse Oximeter in Healthy Adults

Swain¹,

Lata²,

Kumar³

et al. 2022

Cureus

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Background Pulse oximeters measure oxygen saturation, heart rate, and perfusion index (PI) by analyzing photoplethysmographic signals. PI is an indirect measure of peripheral perfusion expressed as a percentage of pulsatile signals to non-pulsatile signals. PI measured from different sites may show variation. PI may vary when measured on different fingers. In this study, we aimed to observe the variation of PI among different fingers of both hands. Methodology This cross-sectional, observational study was conducted using a convenience sample recruited from a tertiary care hospital in eastern India. PI was measured in apparently healthy adults in a sitting posture after a five-minute rest. The pulse oximeter probe was attached to each finger and readings were taken after one minute. The analysis of variance and intraclass correlation coefficient (ICC) were calculated to compare and find agreement among PI. Results Data from a total of 391 (229 [58.57%] male and 162 [41.43%] female) adult research participants with a mean age of 34.88 ± 10.65 years were analyzed. The PI was the highest on the middle finger in both hands. There was a significant difference among the PI measured on different fingers, F (9, 3900) = 15.49, p <0.0001. The ICC was 0.474, 0.368, and 0.635 for overall, right-hand, and left-hand fingers, respectively, which indicate poor (ICC < 0.5) to moderate (ICC = 0.5-0.75) levels of reliability. Conclusions The PI measured using consumer-grade pulse oximeters on different fingers may provide different readings. The highest PI reading is found on the middle finger. Clinicians and primary care physicians should consider the differences in measured PI among different fingers and should use the readings with caution for any diagnostic purposes.

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Section: Discussionsupporting

confidence: 92%

A Cross-Sectional Study on the Agreement of Perfusion Indexes Measured on Different Fingers by a Portable Pulse Oximeter in Healthy Adults

Swain¹,

Lata²,

Kumar³

et al. 2022

Cureus

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show abstract

“…In this study, PI was significantly also higher in survivors than in nonsurvivors at day 30 in the first 30 minutes after return to spontaneous circulation. Similar results were again described by the same authors, including a better survival with good neurologic outcome (cerebral performance categories ≤ 2) in patients who had higher PI [56]. However, the authors did not report the cardiac index or other variable such as microcirculation variables, making difficult to interpret the PI differences between survivors and non-survivors.…”

Section: Pi and Prognosis In Icu And Emergency Departmentsupporting

confidence: 72%

Perfusion index: Physical principles, physiological meanings and clinical implications in anaesthesia and critical care

Coutrot

Dudoignon

Joachim

et al. 2021

Anaesthesia Critical Care & Pain Medicine

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“…However, the negative correlation between PI and VAS was weak due to the subjectivity of VAS. An observational study showed that the normal value of PI was between 0.2% and 20%, and the mean normal value of PI was 4.3 (2.9–6.2) [ 12 ]. In our study, the mean PI measured at the time of discharge of the patients was 5.7 ± 2.9 (min = 1.15 max = 11.2).…”

Section: Discussionmentioning

confidence: 99%

Perfusion index versus visual analogue scale: as an objective tool of renal colic pain in emergency department

Gülen

Satar

Acehan

et al. 2022

Heliyon

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Post-ROSC peripheral perfusion index discriminates 30-day survival after out-of-hospital cardiac arrest

Cited by 15 publications

References 26 publications

A Cross-Sectional Study on the Agreement of Perfusion Indexes Measured on Different Fingers by a Portable Pulse Oximeter in Healthy Adults

A Cross-Sectional Study on the Agreement of Perfusion Indexes Measured on Different Fingers by a Portable Pulse Oximeter in Healthy Adults

Perfusion index: Physical principles, physiological meanings and clinical implications in anaesthesia and critical care

Perfusion index versus visual analogue scale: as an objective tool of renal colic pain in emergency department

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