To investigate intraoperative hypothermia trajectories in VATS patients and provide evidence for predictive temperature management.
Approach:
Study Design: A retrospective analysis of 571 patients who underwent thoracoscopic surgeries at a tertiary hospital between January 2022 and December 2023.
Patient Categorization: Patients were categorized into three groups based on intraoperative hypothermia status: normothermic, hypothermia recovery, and hypothermia non-recovery.
Data Analysis: Univariate analysis and logistic regression were used to identify factors influencing temperature variations, with local weighted regression analysis for continuous temperature monitoring.
Key Findings:
No significant differences in gender, age, surgery duration, anesthesia duration, intraoperative blood loss, or preoperative body temperature (P > 0.05).
Each 500 mL increase in intraoperative infusion volume significantly increased the risk of being in the hypothermia recovery group (OR = 1.570, P < 0.001) and the hypothermia non-recovery group (OR = 1.305, P = 0.007).
Lower BMI was a risk factor only for the non-recovery group (OR = 0.891, P = 0.003).
Three distinct temperature trajectories were identified: Horizontal '∫' (normothermic), '√' (hypothermia recovery), and 'L' (hypothermia non-recovery).
Interpretation:
Individualized perioperative temperature management should be guided by dynamic intraoperative temperature trajectories, infusion requirements, and BMI stratification.
Limitations:
The study is retrospective and may be subject to selection bias.
Findings may not be generalizable to all surgical settings or populations.
Conclusion:
The study provides a basis for stratified hypothermia prevention and lays the groundwork for further research.
