Evidence map›Paper›PMID 28965158›Full record

ArticleJournal of clinical monitoring and computing2018

Influence of non-invasive blood pressure measurement intervals on the occurrence of intra-operative hypotension.

Grant H Kruger, Amy Shanks, Sachin Kheterpal, Tyler Tremper, Chi-Jung Chiang, Robert E Freundlich, James M Blum, Albert J Shih, Kevin K Tremper

Abstract read
In one paragraph

Article in Journal of clinical monitoring and computing, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
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

9 authors.

Grant H KrugerDepartment of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA. ghkruger@umich.edu.
Amy ShanksDepartment of Anesthesiology, University of Michigan, Ann Arbor, MI, USA.
Sachin KheterpalDepartment of Anesthesiology, University of Michigan, Ann Arbor, MI, USA.
Tyler TremperDepartment of Anesthesiology, University of Michigan, Ann Arbor, MI, USA.
Chi-Jung ChiangLuren Precision Co, Hsinchu City, Taiwan.
Robert E FreundlichDepartment of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA.
James M BlumCritical Care Anesthesiology, Emory University School of Medicine, Atlanta, GA, USA.
Albert J ShihDepartment of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA.
Kevin K TremperDepartment of Anesthesiology, University of Michigan, Ann Arbor, MI, USA.

Funding

Institutional Career Development CoreKL2TR002245 · NCATS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Julie A. Bastarache · 2017 to 2026
$9.3M
NCATS NIH HHS KL2 TR002245
6 · The paper itself

Abstract

The American Society of Anesthesiologists Standards for Basic Monitoring recommends blood pressure (BP) measurement every 5 min. Research has shown distractions or technical factors can cause prolonged measurement intervals exceeding 5 min. We investigated the relationship between prolonged non-invasive BP (NIBP) measurement interval and the incidence of hypotension, detected post-interval. Our secondary outcome was to determine independent predictors of these prolonged NIBP measurement intervals. Retrospective data were analyzed from 139,509 general anesthesia cases from our institution's Anesthesia Information Management System (AIMS). Absolute hypotension (AH) was defined a priori as a systolic BP < 80 mmHg and relative hypotension (RH) was defined as a 40% decrease in systolic BP from the preoperative baseline. Odds ratios (OR) with 95% confidence intervals and Pearson's Chi square Test reported the association of prolonged NIBP measurement intervals on hypotension detected post-NIBP measurement interval. Logistic regression models were developed to determine independent predictors of NIBP measurement intervals. The analysis revealed that NIBP measurement intervals greater than 6 and 10 min are associated with an approximately four times higher incidence of a patient transitioning into hypotension (AH/RH > 6 min OR 4.0 / 3.6; AH/RH > 10 min OR 4.3 / 3.9; p < 0.001). A key finding was that the "> 10-minute AH model" indicated that age 41-80, increased co-morbidity profile, obesity and turning (repositioning) of the operative room table were significant predictors of prolonged NIBP measurement intervals (p < 0.001). While we do not suggest NIBP measurement intervals cause hypotension, intervals greater than 6 and 10 min are associated with a fourfold increase in the propensity of an undetected transition into both RH or AH. These data support current monitoring guidelines.

Indexed as

AdolescentAdultAgedAged, 80 and overBlood Pressure DeterminationFemaleHumansHypotensionIntraoperative ComplicationsLogistic ModelsMaleMiddle AgedMonitoring, IntraoperativeRetrospective StudiesTime FactorsTreatment FailureIntra-operative hypertensionMeasurement gapsNon-invasive blood pressurePhysiologic monitoring

Identifiers

PMID28965158
PMCPMC6138874

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Registered trials

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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.