Brain Oxygenation During Thoracoscopic Repair of Long Gap Esophageal Atresia
Lisanne J Stolwijk, David C van der Zee, Stefaan Tytgat, Desiree van der Werff, Manon J N L Benders, Maud Y A van Herwaarden, Petra M A Lemmers, Lisanne J Stolwijk, David C van der Zee, Stefaan Tytgat, Desiree van der Werff, Manon J N L Benders, Maud Y A van Herwaarden, Petra M A Lemmers
Abstract
Background: Elongation and repair of long gap esophageal atresia (LGEA) can be performed thoracoscopically, even directly after birth. The effect of thoracoscopic CO2-insufflation on cerebral oxygenation (rScO2) during the consecutive thoracoscopic procedures in repair of LGEA was evaluated.
Methods: Prospective case series of five infants, with in total 16 repetitive thoracoscopic procedures. A CO2-pneumothorax was installed with a pressure of maximum 5 mmHg and flow of 1 L/min. Parameters influencing rScO2 were monitored. For analysis 10 time periods of 10' during surgery and in the perioperative period were selected.
Results: Median gestational age was 35+3 [range 33+4 to 39+6] weeks; postnatal age at time of first procedure 4 [2-53] days and time of insufflation 127[22-425] min. Median rScO2 varied between 55 and 90%. Transient outliers in cerebral oxygenation were observed in three patients. In Patient 2 oxygenation values below 55% occurred during a low MABP and Hb < 6 mmol/L. The rScO2 increased after erythrocytes transfusion. Patient 5 also showed a rScO2 of 50% with a Hb <6 mmol/L during all procedures, except for a substantial increase during a high paCO2 of 60 mmHg. Patient 4 had a rScO2 > 85% during the first procedure with a concomitant high FiO2 > 45%. All parameters recovered during the surgical course.
Conclusions: This prospective case series of NIRS during consecutive thoracoscopic repair of LGEA showed that cerebral oxygenation remained stable. Transient outliers in rScO2 occurred during changes in hemodynamic or respiratory parameters and normalized after interventions of the anesthesiologist. This study underlines the importance of perioperative neuromonitoring and the close collaboration between pediatric surgeon, anesthesiologist and neonatologist.
Conflict of interest statement
The authors have no conflict of interest to declare.
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References
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Source: PubMed