Research Article

Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery

Volume: 7 Number: 1 March 30, 2026
EN TR

Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery

Abstract

This study was designed to examine the effect of preoperative fasting duration on postoperative insulin resistance and glucose levels in patients who underwent brain and neurosurgery. This descriptive quantitative study was conducted between April 2023 and October 2023 in the Department of Brain and Neurosurgery at Bursa Uludağ University Health Practice and Research Center. The study population consisted of patients who had undergone surgery in the Department of Brain and Neurosurgery at Bursa Uludağ University Health Practice and Research Center within the past year, while the sample consisted of 171 patients who met the study criteria. The Individual Characteristics Form was used as the data collection tool. The obtained data were analyzed using the free trial version of Statistical Package for Social Sciences for Windows 25.0. Descriptive statistical methods (number, percentage, min-max values, median, mean, and standard deviation) were used to evaluate the research data. The normality of the data was examined using the Kolmogorov-Smirnov test. The Mann–Whitney U test was used for comparisons between the two groups. Spearman’s correlation was applied to examine the relationships between variables. Looking at the descriptive characteristics of the patients, 61.4% were female, the average age was 52.38±14.92, and the average body mass index was 27.32±4.86. It was determined that 69% of the patients participating in the study did not smoke, and 78.9% had undergone surgery before. When patients were evaluated according to their medical diagnoses, 52.6% had undergone spinal surgery, 76% had undergone open surgery, and 93.6% had undergone surgery under general anesthesia. The average fasting duration after liquid food before surgery was 15.26±2.87 hours, the average fasting duration after solid food was 16.79±3.05 hours, the mean blood glucose level was 118.24±36.28, and the average insulin resistance index was 3.43±2.97. In conclusion, this study evaluated the effect of preoperative fasting duration on postoperative insulin resistance and glucose levels in patients.

Keywords

Supporting Institution

This research was not financially supported by any institution, organization, or funding agency. The study was conducted with the researcher’s own resources.

Ethical Statement

Approval for the study was obtained from the XXX University Faculty of Medicine Clinical Research Ethics Committeh (decision dated 21.03.2023 and numbered 2023-6/16). Participants were informed about the study, and it was stated that participation was based on voluntariness, and written consent was obtained. This study was conducted in accordance with the principles of the 1964 Declaration of Helsinki. The identities of the participants were kept confidential, and the data were used only for scientific purposes.

Thanks

The authors would like to thank all patients who voluntarily participated in this study and the healthcare professionals who supported the data collection process. Their cooperation and contribution were invaluable to the successful completion of this research.

References

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Details

Primary Language

English

Subjects

Surgical Diseases Nursing​​

Journal Section

Research Article

Publication Date

March 30, 2026

Submission Date

January 19, 2026

Acceptance Date

March 8, 2026

Published in Issue

Year 2026 Volume: 7 Number: 1

APA
Güler Özden, E., & Korkmaz, E. (2026). Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery. Journal of Innovative Healthcare Practices, 7(1), 13-24. https://doi.org/10.58770/joinihp.1866520
AMA
1.Güler Özden E, Korkmaz E. Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery. Journal of Innovative Healthcare Practices. 2026;7(1):13-24. doi:10.58770/joinihp.1866520
Chicago
Güler Özden, Elif, and Evin Korkmaz. 2026. “Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery”. Journal of Innovative Healthcare Practices 7 (1): 13-24. https://doi.org/10.58770/joinihp.1866520.
EndNote
Güler Özden E, Korkmaz E (March 1, 2026) Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery. Journal of Innovative Healthcare Practices 7 1 13–24.
IEEE
[1]E. Güler Özden and E. Korkmaz, “Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery”, Journal of Innovative Healthcare Practices, vol. 7, no. 1, pp. 13–24, Mar. 2026, doi: 10.58770/joinihp.1866520.
ISNAD
Güler Özden, Elif - Korkmaz, Evin. “Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery”. Journal of Innovative Healthcare Practices 7/1 (March 1, 2026): 13-24. https://doi.org/10.58770/joinihp.1866520.
JAMA
1.Güler Özden E, Korkmaz E. Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery. Journal of Innovative Healthcare Practices. 2026;7:13–24.
MLA
Güler Özden, Elif, and Evin Korkmaz. “Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery”. Journal of Innovative Healthcare Practices, vol. 7, no. 1, Mar. 2026, pp. 13-24, doi:10.58770/joinihp.1866520.
Vancouver
1.Elif Güler Özden, Evin Korkmaz. Surgical Preoperative Fasting Duration Effects on Postoperative Insulin Resistance Index and Glucose Levels in Patients Undergoing Neurosurgery. Journal of Innovative Healthcare Practices. 2026 Mar. 1;7(1):13-24. doi:10.58770/joinihp.1866520