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MINERVA ANESTESIOLOGICA

A Journal on Anesthesiology, Resuscitation, Analgesia and Intensive Care


Official Journal of the Italian Society of Anesthesiology, Analgesia, Resuscitation and Intensive Care
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Minerva Anestesiologica 2018 Mar 27

DOI: 10.23736/S0375-9393.18.12400-X

Copyright © 2018 EDIZIONI MINERVA MEDICA

language: English

Perioperative hyperglycaemia and neurocognitive outcome after surgery: a systematic review

Jeroen HERMANIDES 1 , Ega QEVA 2, Benedikt PRECKEL 1, Federico BILOTTA 2

1 Department of Anesthesiology, Academic Medical Centre, Amsterdam, The Netherlands; 2 Department of Anesthesiology, Critical Care and Pain, Sapienza University of Rome, Rome, Italy


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BACKGROUND: Preliminary evidence suggest a possible relationship between perioperative hyperglycaemia, postoperative delirium (POD) or cognitive dysfunction (POCD). We aim to present the available clinical evidence related to chronic (i.e. Diabetes Mellitus) or acute perioperative hyperglycaemia as risk factors for POD/POCD.
METHODS: A literature search of EMBASE (via Ovid, 1974-present) online medical database and MEDLINE (via PubMed or Ovid, 1946-present) was performed. All types of clinical studies including randomized controlled trials, prospective, as well as retrospective cohort studies were screened. Clinical studies that reported original information on the relationship between diabetes mellitus (DM) and/or acute perioperative abnormal glucose levels and POD or POCD were selected. Reviews and editorials (i.e. articles not presenting original preclinical or clinical research) were excluded and case-reports were not considered for analysis.
RESULTS: Our search resulted in 2,356 papers for screening, from which we selected 29 studies that met our inclusion criteria. Diabetes mellitus was investigated in 24 observational papers, acute perioperative hyperglycaemia in six observational studies and two randomized controlled trials examined the effect of perioperative glucose lowering on POD/POCD. Diabetes was associated with POD or POCD in 18/24 observational studies and 6/6 of the included observational studies found that perioperative hyperglycaemia was associated with POD/POCD, independent of diabetes. The two randomized controlled trials had a different trial design and reported conflicting results.
CONCLUSIONS: According the available evidence,diabetes mellitus and acute perioperative hyperglycemia may be associated with an increased risk for POD/POCD. These conclusions are based mostly on observational studies and deserve more and dedicated research. This systematic review may direct the design of future studies.


KEY WORDS: Hyperglycemia complications - Cognitive dysfunction - Delirium - Diabetes Mellitus - Postoperative complications

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Publication History

Article first published online: March 27, 2018
Manuscript accepted: March 14, 2018
Manuscript revised: February 1, 2018
Manuscript received: August 30, 2017

Cite this article as

Hermanides J, Qeva E, Preckel B, Bilotta F. Perioperative hyperglycaemia and neurocognitive outcome after surgery: a systematic review. Minerva Anestesiol 2018 Mar 27. DOI: 10.23736/S0375-9393.18.12400-X

Corresponding author e-mail

J.Hermanides@amc.uva.nl