Evaluation of the Cardiac Functions With Tissue Doppler Before and After Hyperbaric Oxygen Therapy of Patients Withcarbonmonoxide Poisoning

Objective: We aimed to determine whether systolic and diastolic functions of patients who presented to the pediatric emergency clinic because of carbonmonoxide poisoning and were treated with hyperbaric oxygen therapy, were examined with tissue doppler imaging method before and after the treatment. Materials and Methods: Between January 2019-January 2021, 34 patients who presented to the pediatric emergency clinic because of carbonmonoxide poisoning and were treated with hyperbaric oxygen, and 34 healthy children who presented to the pediatric cardiology clinic as the control group were included. The study was performed prospectively. Results: The mean age of patients was 10.95 ± 4.75 years. 21 patients (61.8%) were female. 21 patients (61.8%) presented with natural gas poisoning. The most common complaint at admission to the hospital was loss of consciousness with 41.2%. The mean carboxyhemoglobin of the patients after carbonmonoxide poisoning was found to be 21.70±6.45. After one session of hyperbaric oxygen therapy, the mean carboxyhemoglobin was found to be 0.74±0.34. The mean troponin-I level of the patients was 114.81±197.76 after carbonmonoxide poisoning and 42.32±118.36 after one session of hyperbaric oxygen therapy. In the tissue doppler imaging of the patients, the isovolemic relaxation time and myocardial performance index were higher in the group evaluated before hyperbaric oxygen therapy; ejection time was found to be shorter. Conclusions: Systolic and diastolic dysfunctions were found in the cardiac evaluation of patients who presented with carbonmonoxide poisoning and were treated with hyperbaric oxygen. It has been demonstrated echocardiographically that this dysfunction is reversible with hyperbaric oxygen therapy.