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The Prevalence of Hyperglycemia in Surgical Patients With Pre-diabetes

17. juni 2026 oppdatert av: Shannon Ruzycki, University of Calgary

The goal of this study is to measure the prevalence and risks of hyperglycemia in surgical patients with prediabetes. The main questions it aims to answer are:

  • What is the prevalence of hyperglycemia in surgical patients with prediabetes?
  • What is the relative risk of postoperative complications associated with hyperglycemia?

To answer these questions, surgical patients with prediabetes will undergo universal glucose measurement in the perioperative period. Glucose data will be analyzed in conjunction with electronic health record (EHR) data describing patient outcomes.

Studieoversikt

Detaljert beskrivelse

Background

Day-of-surgery and postoperative ('perioperative') hyperglycemia are modifiable risk factors for complications after non-cardiac surgery, including surgical site infections, 30-day readmissions, and mortality. Data from Alberta suggests perioperative hyperglycemia is common among people without diabetes, affecting about 13% of people with prediabetes on the day-of-surgery and 18% of people without diabetes after surgery. Paradoxically, the risks of perioperative hyperglycemia appear to be two-times greater for people with prediabetes than for people with diabetes and the reasons for this are unknown. Current estimates of the prevalence of perioperative for people with prediabetes are limited. Understanding the true prevalence would inform individual decision-making around surgery, the need for further research about the true association of hyperglycemia and adverse outcomes, and clinical decisions about the utility of measuring glucose for all people with prediabetes around the time of surgery.

Objectives

This prospective cohort study will establish the prevalence of perioperativehyperglycemia in people with prediabetes undergoing scheduled (elective and urgent) non-cardiac surgeries. This information will inform:

  1. Patients, to better understand their individual risks of elective surgery.
  2. Clinicians, on the need for perioperative glucose measurement for patients with prediabetes.
  3. Researchers, on the need for and design of further studies.

Methods Overview

We will measure glucose in all adult patients with prediabetes undergoing scheduled (elective and urgent) non-cardiac surgeries throughout the perioperative period (referring to the day of surgery and up to the first 3 postoperative days or discharge, whichever comes first) to determine the prevalence of perioperative dysglycemia in people with prediabetes.

This project will leverage established data sources and linkages to address secondary and exploratory objectives: (1) Use in-hospital insulin prescribing data to describe current practices for treatment of perioperative hyperglycemia in people with prediabetes; (2) Explore the association between clinical outcomes like infections and length of stay with perioperative hyperglycemia in people with prediabetes; and (3) Compare the prevalence of perioperative hyperglycemia and the association of hyperglycemia with clinical outcomes between the intervention period and a historical control period (pre-intervention at the same hospital) and a contemporaneous, non-intervention site (UAH, Edmonton) to examine whether the 'prediabetes paradox' is a result of confounding by indication or another cause.

Outcomes

If the prevalence of perioperative hyperglycemia in people with prediabetes is sufficiently high, clinical guidelines should recommend perioperative glycemic monitoring for patients with prediabetes. Further, if there is an association between hyperglycemia and adverse outcomes, intervention-based studies are needed to determine whether this risk is modifiable with hyperglycemia treatment.

Team

The NPI and co-investigators have led a 5-year implementation science and quality improvement study to improve perioperative glycemic management for people with diabetes in Alberta. This interdisciplinary group of patients, nurses, endocrinologists, surgeons, anesthesiologists, internists, and implementation scientists will leverage their existing data access, professional networks, and content expertise to conduct this study.

Studietype

Observasjonsmessig

Registrering (Antatt)

750

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

    • Alberta
      • Calgary, Alberta, Canada
        • Foothills Medical Centre

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Surgical in-patients at the Foothills Medical Centre.

Beskrivelse

Inclusion Criteria:

  • Hemoglobin A1c measurement between 6 and 6.4%
  • Scheduled for non-cardiac surgery

Exclusion Criteria:

  • Age>18
  • Pregnancy
  • Any formal diabetes diagnosis
  • Current use of medications that influence blood glucose regardless of the indication
  • Undergoing cardiac, intracranial neurosurgery, bariatric, or pancreatic surgeries

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Surgical Patients with Prediabetes
Adult patients undergoing non-cardiac surgeries who have pre-diabetes.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Prevalence of perioperative hyperglycemia
Tidsramme: Up to the first 3 postoperative days or discharge, whichever comes first.
Prediabetes will be defined as described in Section 4.2 using Diabetes Canada definitions. The perioperative period will include the day of surgery and the early postoperative period. The day of surgery includes surgical admitting, intraoperative, and recovery room on postoperative day (POD) 0, which is the day that surgery was completed until 23:59. The early postoperative period will be defined as the first 3 full postoperative days, in keeping with studies that have demonstrated that hyperglycemia is most common in the first 72 hours after surgery and that early hyperglycemia is associated with greater 30-day postoperative mortality. Hyperglycemia will be defined using Diabetes Canada reference ranges as any glucose value >10.0 mmol/L by any form of glucose measurement.
Up to the first 3 postoperative days or discharge, whichever comes first.

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Post-operative complications
Tidsramme: Within 30 days of surgery.
Postoperative complications are defined in accordance with the American College of Surgeons National Surgical Quality Improvement Program (NSQIP), a standardized list of preventable complications developed by surgeons and used internationally to describe hospital-level quality of surgical care. These include the following adverse events within 30 days of surgery: SSIs (superficial, deep incisional, organ/space, using the Centres for Disease Control definitions), wound dehiscence, pneumonia, unplanned intubation, pulmonary embolism, ventilator use >48 hours, acute renal failure, urinary tract infection, stroke, cardiac arrest, myocardial infarction, transfusion complications, deep vein thrombosis, sepsis, septic shock, Clostridium difficile infection, death, readmissions, and unplanned reoperations.
Within 30 days of surgery.

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Shannon Ruzycki, MD, University Of Calgary

Publikasjoner og nyttige lenker

Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. mai 2027

Primær fullføring (Antatt)

1. mai 2028

Studiet fullført (Antatt)

1. mai 2028

Datoer for studieregistrering

Først innsendt

23. februar 2026

Først innsendt som oppfylte QC-kriteriene

17. juni 2026

Først lagt ut (Faktiske)

23. juni 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

23. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

17. juni 2026

Sist bekreftet

1. februar 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

IPD, specifically deidentified patient data will be shared upon reasonable request by fellow research teams.

IPD-delingstidsramme

Data will be available after analyses have completed, approximately in the month of March, 2028. Data will be retained in accordance with the University of Calgary's Master Records Retention Schedule(MaRRS). During this time period, data will be available upon reasonable request.

IPD-deling Støtteinformasjonstype

  • STUDY_PROTOCOL
  • SEVJE
  • ICF

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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