Evidence map›Paper›PMID 31705432›Full record

ArticleJournal of clinical monitoring and computing2020

The Peripheral Perfusion Index tracks systemic haemodynamics during general anaesthesia.

J Højlund, M Agerskov, C G Clemmesen, L Edvardsen Hvolris, N B Foss

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of clinical monitoring and computing, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
4.9field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 41 citations in OpenAlex.

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  8. Peripheral Perfusion Index for Prediction of Fluid Responsiveness in Spontaneously Breathing Critically Ill Patients: A Prospective Observational Study.Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2025
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  18. What is new in hemodynamic monitoring and management?Journal of clinical monitoring and computing · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

J HøjlundDepartment of Anaesthesiology, Hvidovre University Hospital, Capital Region, Kettegaard Allé 30, 2650, Hvidovre, Denmark. jakob.hoejlund@regionh.dk.ORCID http://orcid.org/0000-0002-9904-6206
M AgerskovDepartment of Anaesthesiology, Hvidovre University Hospital, Capital Region, Kettegaard Allé 30, 2650, Hvidovre, Denmark.
C G ClemmesenDepartment of Anaesthesiology, Hvidovre University Hospital, Capital Region, Kettegaard Allé 30, 2650, Hvidovre, Denmark.
L Edvardsen HvolrisDepartment of Surgical Gastroenterology, Hvidovre University Hospital, Capital Region, Hvidovre, Denmark.
N B FossDepartment of Anaesthesiology, Hvidovre University Hospital, Capital Region, Hvidovre, Denmark.
Hvidovre Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stable intraoperative haemodynamics are associated with improved outcome and even short periods of instability are associated with an increased risk of complications. During anaesthesia intermittent non-invasive blood pressure and heart rate remains the cornerstone of haemodynamic monitoring. Continuous monitoring of systemic blood pressure or even -flow requires invasive or advanced modalities creating a barrier for obtaining important real-time haemodynamic insight. The Peripheral Perfusion Index (PPI) is obtained continuously and non-invasively by standard photoplethysmography. We hypothesized that changes in indices of systemic blood flow during general anaesthesia would be reflected in the PPI. PPI, stroke volume (SV), cardiac output (CO) and mean arterial pressure (MAP) were evaluated in 20 patients. During general anaesthesia but before start of surgery relative changes of SV, CO and MAP were compared to the relative changes of PPI induced by head-up (HUT) and head-down tilt (HDT). Furthermore, the effect of phenylephrine (PE) during HUT on these parameters was investigated. ∆PPI correlated significantly (p < 0.001) with ∆SV (r = 0.9), ∆CO (r = 0.9), and ∆MAP (r = 0.9). HUT following induction of anaesthesia resulted in a decrease in PPI of 41% (25-52) [median (IQR)], SV 27% (23-31), CO 27% (25-35), and MAP 28% (22-35). HDT led to an increase in PPI of 203% (120-375), SV of 29% (21-41), CO 22% (16-34), and MAP 47% (42-60). After stabilizing a second HUT decreased PPI 59% (49-76), SV 33% (28-37), CO 31% (28-36), and MAP 34% (26-38). Restoration of preload with PE increased PPI by 607% (218-1078), SV by 96% (82-116), CO by 65% (56-99), and MAP by 114% (83-147). During general anaesthesia changes in PPI tracked changes in systemic haemodynamics.

Indexed as

HemodynamicsPerfusion IndexAnesthesia, GeneralBlood PressureCardiac OutputHumansGeneral anaesthesiaHaemodynamic monitoringNon-invasive monitoringPeripheral Perfusion Index

Identifiers

PMID31705432
OpenAlexW2988334302

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.