(b)(4).The device was not returned to physio-control for evaluation.There was no report of a device malfunction.Physio performed a clinical review of the information that was reported.The information that was provided was very limited.The following are the conclusions from the clinical review: lucas performs compressions according the guidelines for manual cpr with a depth of 5 cm and a rate of 100-120 compressions per minute.The described complication, in this case, is known in the published scientific literature.Injuries to the heart and great vessels occur in about 11% in conjunction with manual cpr. with the limited information it is very difficult to confirm the cause of the patient's outcome.The dissected coronary vessel could be related to the initial cardiac arrest.It could also be a user error or due to compressions by mechanical cpr as mentioned in the report.Therefore, it is possible that mechanical chest compressions may have contributed to the reported patient's outcome.Footnote 1.Paradis, n., et al., cardiac arrest, chapter: manual cardiopulmonary techniques.Second edition ed.2007, cambridge: cambridge university press.576-577.(b)(4).
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