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Association Between Intercostal Nerve Block and Postoperative Glycemic Control in Patients With Diabetes Undergoing
Yang Zhang1, Guangxing Geng2, Zixuan Chen1
1Department of Anesthesiology and Perioperative Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
Objectives:
The present study was performed to investigate the possible association between intercostal nerve block (INB) and postoperative glycemic control in patients with diabetes undergoing video-assisted thoracoscopic pulmonary resection.
Design:
A retrospective study.
Setting:
Single-center tertiary academic hospital.
Participants:
Patients with diabetes, ages 18 to 79 years, who had undergone elective video-assisted thoracoscopic pulmonary resection (segmentectomy or lobectomy) from January 1, 2015, to December 31, 2018.
Interventions:
Postoperative blood glucose levels and insulin dosage were extracted from the record.
Measurements And Main Results:
Patients with diabetes who received INB before closure of surgical incisions were compared with those who did not receive INB. The primary outcome was the daily blood glucose (BG) level. Univariate analyses and multivariate regression analysis were performed to explore risk factors of hyperglycemia within 48 hours after the surgery. Baseline characteristics were comparable between the two groups. Patients who received INB had a lower maximum BG level and amplitude of glycemic excursion from zero-to-24 hours after surgery (p = 0.007 and p = 0.041, respectively) and lower maximum and minimum BG levels from 24-to-48 hours after surgery (p = 0.023 and p = 0.006, respectively). Meanwhile, the daily insulin dose increment during zero-to-24 hours and 24-to-48 hours after surgery decreased (p = 0.010 and p = 0.003, respectively), the white blood cell counts within 48 hours after surgery were lower (p = 0.021), and the length of postoperative stay decreased in the INB group (p = 0.044). Multivariate regression analysis further confirmed that INB was an independent protective factor of postoperative hyperglycemia (Nagelkerke R2 value 0.229; odds ratio 0.298; 95% confidence interval 0.099-0.901; p = 0.032).
Conclusion:
INB, performed before closure of surgical incisions, was associated with improved glycemic control in patients with diabetes within 48 hours after video-assisted thoracoscopic pulmonary resection.
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