Trial reportCanadian journal of anaesthesia = Journal canadien d'anesthesie2021
Intranasal administration of 40 and 80 units of insulin does not cause hypoglycemia during cardiac surgery: a randomized controlled trial.
Trial report in Canadian journal of anaesthesia = Journal canadien d'anesthesie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02729064 (Effect of Intranasal Insulin Administration on Glycaemia and Insulin Concentrations in Plasma and Cerebrospinal Fluid During Surgery), which is not on this map. Cited by 11 papers, 2 of them syntheses that pooled 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.
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.
Effect of Intranasal Insulin Administration on Glycaemia and Insulin Concentrations in Plasma and Cerebrospinal Fluid During Surgery
Who cites it
11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 16 citations in OpenAlex.
- Pooled it
- Efficacy of intranasal insulin in improving cognition in mild cognitive impairment or dementia: a systematic review and meta-analysis.Frontiers in aging neuroscience · 2022Pooled it
- Safety and tolerability of intranasal insulin in Parkinson's disease.Frontiers in neurology · 2026Trial
- Safety of intranasal insulin administration in patients undergoing cardiovascular surgery: An open-label, nonrandomized, dose-escalation study.JTCVS open · 2024Trial
- Use of intranasal insulin on postoperative delirium: A systematic review and meta-analysis of randomised controlled trials.Indian journal of anaesthesia · 2026Article
- Intranasal insulin for the treatment of alcohol use disorder: design and methodology of an alcohol interaction randomized controlled trial.Contemporary clinical trials communications · 2025Article
- Incretin-Based Therapies in Alzheimer's and Parkinson's Disease: Advancing Neuroprotection With Dual and Triple Agonists-A Review.Health science reports · 2025Article
- First Biodistribution Study of [68Ga]Ga-NOTA-Insulin Following Intranasal Administration in Adult Vervet Monkeys.Journal of Alzheimer's disease : JAD · 2024Article
- Intranasal insulin and cerebrospinal fluid glucose levels.Journal of anesthesia · 2023Article
- Current Technologies for Managing Type 1 Diabetes Mellitus and Their Impact on Quality of Life-A Narrative Review.Life (Basel, Switzerland) · 2023Review
- Postoperative Delirium and Dementia in Patients Undergoing Cardiac Surgery: A Review of Randomized Controlled Trials.Galen medical journal · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeIntranasal insulin administration may improve cognitive function in patients with dementia and may prevent cognitive problems after surgery. Although the metabolic effects of intranasal insulin in non-surgical patients have been studied, its influence on glucose concentration during surgery is unknown.
methodsWe conducted a randomized, double-blind, placebo-contolled trial in patients scheduled for elective cardiac surgery. Patients with type 2 diabetes mellitus (T2DM) and non-T2DM patients were randomly allocated to one of three groups (normal saline, 40 international units [IU] of intranasal insulin, and 80 IU intranasal insulin). Insulin was given after the induction of general anesthesia. Glucose and plasma insulin concentrations were measured in ten-minute intervals during the first hour and every 30 min thereafter. The primary outcome was the change in glucose concentration 30 min after intranasal insulin administration.
resultsA total of 115 patients were studied, 43 of whom had T2DM. In non-T2DM patients, 40 IU intranasal insulin did not affect glucose concentration, while 80 IU intranasal insulin led to a statistically significant but not clinically important decrease in blood glucose levels (mean difference, 0.4 mMol·L
conclusionsIn patients with and without T2DM undergoing elective cardiac surgery, intranasal insulin administration at doses as high as 80 IU did not cause clinically important hypoglycemia.
trial registrationwww.ClinicalTrials.gov (NCT02729064); registered 5 April 2016.
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