There are no reports in the literature of routine preoperative and postoperative electrophysiological studies in large patient groups to evaluate brachial plexus injury during open heart surgery. It is known that heart surgery sometimes causes partial brachial plexus injury, especially in the lower trunk. However, these peripheral nerve problems are usually not considered clinically important and are not investigated. Patients undergoing open heart surgery must be closely followed up for peripheral nerve injury during the postoperative period.

: Coronavirus disease 19 (COVID-19) first emerged in December 2019 in China and rapidly spread worldwide. While various studies have reported that COVID-19 is associated with a hypercoagulable state and thrombotic complications in critically ill patients, there are scant case reports on thrombotic events as one of the presenting symptoms. We report a case of acute upper extremity ischemia as the initial clinical presentation of a COVID-19 patient.

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