Evidence map›Paper›PMID 34780517›Full record

ArticlePloS one2021

Postoperative hypothermia following non-cardiac high-risk surgery: A prospective study of temporal patterns and risk factors.

Itajiba Paternosti Sabbag, Fabio Barlem Hohmann, Murillo Santucci Cesar Assunção, Renato Carneiro de Freitas Chaves, Thiago Domingos Corrêa, Pedro Ferro L Menezes, Ary Serpa Neto, Luiz Marcelo Sá Malbouisson, Suzana Margareth Ajeje Lobo, Cristina Prata Amendola and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 27% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. 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

13 authors at 5 institutions in 1 country.

Itajiba Paternosti SabbagHospital das Clínicas, Medical School, Universidade de São Paulo, São Paulo, SP, Brazil.
Fabio Barlem HohmannDepartamento de Pacientes Graves, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
Murillo Santucci Cesar AssunçãoDepartamento de Pacientes Graves, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
Renato Carneiro de Freitas ChavesDepartamento de Pacientes Graves, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.ORCID 0000-0001-7324-272X
Thiago Domingos CorrêaDepartamento de Pacientes Graves, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
Pedro Ferro L MenezesHospital das Clínicas, Medical School, Universidade de São Paulo, São Paulo, SP, Brazil.
Ary Serpa NetoDepartamento de Pacientes Graves, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
Luiz Marcelo Sá MalbouissonHospital das Clínicas, Medical School, Universidade de São Paulo, São Paulo, SP, Brazil.ORCID 0000-0002-3261-5603
Suzana Margareth Ajeje LoboUnidade de Terapia Intensiva, Hospital de Base, Medical School of São José do Rio Preto, São José do Rio Preto, SP, Brazil.
Cristina Prata AmendolaUnidade de Terapia Intensiva, Hospital de Câncer de Barretos, Pio XII Foundation, Barretos, SP, Brazil.
Jose Eduardo de Aguilar-NascimentoUnidade de Terapia Intensiva, Universidade Federal de Mato Grosso, Cuiabá, MT, Brazil.
João Manoel SilvaHospital das Clínicas, Medical School, Universidade de São Paulo, São Paulo, SP, Brazil.ORCID 0000-0003-1494-0784
BRASIS Study Group
Hospital Israelita Albert Einstein · BRHospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo · BRHospital de Base · BRHospital de Câncer de Barretos · BRUniversidade Federal de Mato Grosso · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesHypothermia occurs commonly during surgery and can cause postoperative complications. We aimed to describe the characteristics and outcomes of hypothermia in patients undergoing major surgeries.

methodsThis prospective, observational, multicenter study of a nationally representative sample included all patients over 18 years of age admitted to an intensive care unit (ICU). Thirty ICUs were selected randomly at national level. The main outcome measure was the proportion of patients who developed postoperative hypothermia in the first 24 hours of ICU admission. Patients were divided into three groups based on temperature: <35°C, <36°C, and ≥36°C (no hypothermia). Patients' characteristics, postoperative complications, and risk factors were evaluated in all groups. To verify whether hypothermia was a strong risk factor for postoperative complications, a Kaplan-Meier curve was generated and adjusted using a Cox regression model.

resultsIn total, 738 patients had their temperatures measured. The percentage of patients with temperature <35°C (median [Q1-Q3], 34.7°C [34.3-34.9°C]) was 19.1% (95% confidence interval [CI] = 16.1-22.5) and that of patients with temperature <36°C (median [Q1-Q3], 35.4°C [35.0-35.8°C]) was 64% (95% CI = 58.3-70.0). The percentage of surgical complications was 38.9%. Patients with hypothermia were older, had undergone abdominal surgeries, had undergone procedures of longer duration, and had more comorbidities. A postoperative temperature ≤35°C was an independent risk for composite postoperative complications (hazard ratio = 1.523, 95% CI = 1.15-2.0), especially coagulation and infection.

conclusionsInadvertent hypothermia was frequent among patients admitted to the ICU and occurred more likely after abdominal surgery, after a long procedure, in elderly patients, and in patients with a higher number of comorbidities. Low postoperative temperature was associated with postoperative complications.

Indexed as

AgedAged, 80 and overHumansHypothermiaMiddle AgedPostoperative ComplicationsPostoperative PeriodProspective StudiesRisk FactorsTemperature

Identifiers

PMID34780517
PMCPMC8592479
OpenAlexW3212925249

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.