Evidence map›Paper›PMID 35359139›Full record

Observational studyAnaesthesiology intensive therapy2022

Perfusion index-derived parameters as predictors of hypotension after induction of general anaesthesia: a prospective cohort study.

Bassant Abdelhamid, Akram Yassin, Abeer Ahmed, Shereen Amin, Ayman Abougabal

Registry-linked trialOpen access · diamondAbstract readObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study in Anaesthesiology intensive therapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04217226 (Evaluation of Perfusion Index-derived Parameters as Predictors of Hypotension After Induction of General Anaesthesia), which is not on this map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 13% 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.

NCT04217226 completednot on this map

Evaluation of Perfusion Index-derived Parameters as Predictors of Hypotension After Induction of General Anaesthesia: a Prospective Cohort Study.

TypeobservationalSponsorCairo UniversityRan2020 to 2020Enrolled93ConditionsHypotension, General Anesthesia Induced HypotensionArmsPerfusion index derived parameters
3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
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.

Bassant AbdelhamidDepartment of Anaesthesiology, Surgical ICU and Pain Management, Kasr-Alainy Faculty of Medicine, Cairo University, Giza, Egypt.
Akram YassinDepartment of Anaesthesiology, Surgical ICU and Pain Management, Kasr-Alainy Faculty of Medicine, Cairo University, Giza, Egypt.
Abeer AhmedDepartment of Anaesthesiology, Surgical ICU and Pain Management, Kasr-Alainy Faculty of Medicine, Cairo University, Giza, Egypt.
Shereen AminDepartment of Anaesthesiology, Surgical ICU and Pain Management, Kasr-Alainy Faculty of Medicine, Cairo University, Giza, Egypt.
Ayman AbougabalDepartment of Anaesthesiology, Surgical ICU and Pain Management, Kasr-Alainy Faculty of Medicine, Cairo University, Giza, Egypt.
Cairo University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInduction of general anaesthesia is commonly associated with hypotension. This exposes patients to perioperative organ hypoperfusion and eventually damage. This study was designed to assess the ability of preoperative perfusion index (PI), plethysmographic variability index (PVI), and dicrotic plethysmography (Dicpleth) to predict hypotension after induction of general anaesthesia.

methodsIn this cohort study, 95 ASA I and II adult patients who were scheduled for elective surgery under general anaesthesia were enrolled. The correlation between preoperative PI, PVI, Dicpleth and percentage decrease in mean arterial blood pressure after anaesthesia induction was investigated. Ability of PI, PVI, Dicpleth to detect post-induction hypotension was also analysed.

resultsThe percent decrease in MAP after anaesthesia correlated with baseline PI (r = -0.45, P < 0.001), PVI (r = 0.45, P = 0.001) and Dicpleth (r = 0.16, P = 0.12). The PI cut-off value was ≤ 3.03 for a patient at risk for post-induction hypotension with 77.8% sensitivity, 75% specificity, positive and negative predictive values of 74.5% and 78.3%, respectively. Similarly, the ROC analysis revealed that baseline PVI (AUC = 0.73, 95% CI = 0.622-0.812) was suitable for detecting post-induction hypotension. Moreover, baseline Dicpleth (AUC = 0.63) showed significant predictive ability.

conclusionsThe pre-anaesthetic PI and PVI 17, respectively, have a good ability to predict those at risk of developing post-induction hypotension in adult patients undergoing elective surgery under general anaesthesia. Future studies are needed in order to investigate the usefulness of Dicpleth in different circumstances during anaesthesia. Clinical trial registration ID: The study was registered at clinicaltrials.gov (NCT04217226).

Indexed as

HypotensionPerfusion IndexAdultAnesthesia, GeneralCohort StudiesHumansProspective Studiesdicrotic plethysmographyperfusion indexplethysmographic variability indexpost-induction hypotension

Identifiers

PMID35359139
PMCPMC10156493
OpenAlexW4225645226

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Registered trials

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.