Abstract
Purposes
Thoracoscopic anatomical lung resection is a minimally invasive technique, but intraoperative massive bleeding is a critical complication. We investigated the hemostatic efficacy and safety of intrapleural carbon dioxide (CO2) insufflation in thoracoscopic surgery in a swine vessel injury model.
Methods
Swines were assigned to one of four groups subjected to thoracoscopic surgery under target intrathoracic pressures of 0, 5, 10, or 15 mmHg CO2 insufflation, respectively. A pin-hole injury of the right cranial lobe pulmonary vein was inflicted thoracoscopically and we compared the blood loss and hemodynamic changes in each group.
Results
There were no signs or echographic findings of air embolus. Both the blood loss per minute and total blood loss during the experiment were significantly lower in the 10 and 15 mmHg groups than in the 0 mmHg group (p > 0.05, respectively). The hemodynamic signs, including heart rate, mean arterial pressure, and peripheral oxygen saturation, were not significantly different in the 0 and 10 mmHg groups at most times, although they were significantly correlated with the insufflation pressure during the experiments (p < 0.05).
Conclusions
CO2 insufflation in thoracoscopic major lung resection appears to be safe, even in the short term, and can help to control vessel injury.
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Abbreviations
- CO2 :
-
Carbon dioxide
- HITS:
-
High-intensity transient signal
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Acknowledgments
We thank Dr. Yusuke Iida for anesthetic management during our experiments and Ms. Amanda Tompson, RN, for correcting the English language in this manuscript.
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Okamura, R., Takahashi, Y., Dejima, H. et al. Efficacy and hemodynamic response of pleural carbon dioxide insufflation during thoracoscopic surgery in a swine vessel injury model. Surg Today 46, 1464–1470 (2016). https://doi.org/10.1007/s00595-016-1323-7
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DOI: https://doi.org/10.1007/s00595-016-1323-7