recurrent episodes of ventricular tachycardia; covid-19; sudden loss of consciousness x 2; This spontaneous case was reported by an other health care professional (subsequently medically confirmed) and describes the occurrence of LOSS OF CONSCIOUSNESS (sudden loss of consciousness x 2), VENTRICULAR TACHYCARDIA (recurrent episodes of ventricular tachycardia) and COVID-19 (covid-19) in an 81-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 018B21A) for COVID-19 immunization.     The patient's past medical history included Intracerebral hemorrhage (hx intracerebral hemorrhage), Asthma, CABG since an unknown date and Implantable cardioverter defibrillator insertion since an unknown date. Concurrent medical conditions included Coronary artery disease (CAD), Hypertension, Carotid artery stenosis and Chronic atrial fibrillation. Concomitant products included LISINOPRIL, ATORVASTATIN, ACETYLSALICYLIC ACID (ASPIRIN 81), CARVEDILOL (COREG), VALSARTAN and ISOSORBIDE MONONITRATE (IMDUR) for an unknown indication.    On 08-Apr-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 15-Apr-2021, the patient experienced LOSS OF CONSCIOUSNESS (sudden loss of consciousness x 2) (seriousness criterion hospitalization), VENTRICULAR TACHYCARDIA (recurrent episodes of ventricular tachycardia) (seriousness criterion hospitalization) and COVID-19 (covid-19) (seriousness criterion hospitalization). The patient was hospitalized on 15-Apr-2021 due to LOSS OF CONSCIOUSNESS, and then from 28-Apr-2021 to 05-May-2021 due to COVID-19. At the time of the report, LOSS OF CONSCIOUSNESS (sudden loss of consciousness x 2), VENTRICULAR TACHYCARDIA (recurrent episodes of ventricular tachycardia) and COVID-19 (covid-19) had not resolved. sudden loss of consciousness x 2 after his Automatic implantable cardioverter-defibrillator (AICD) fired    DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 15-Apr-2021, Chest X-ray: negative (Negative) negative. On 15-Apr-2021, Full blood count: normal (normal) normal/ at his base line. On 15-Apr-2021, Metabolic function test normal: normal (normal) normal. On 15-Apr-2021, SARS-CoV-2 test: positive (Positive) positive.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.   For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   Patient was treated with Amiodarone and lidocaine drip at the hospital. Patient was discharged from the hospital to a covid rehab facility on 05-MAY-2021.  Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded. with the patient's past medical history of ventricular tachycardia is confounder. Based on biological implausibility, the event of COVID-19 infection, causality is assessed as not applicable in relation to mRNA-1273.; Sender's Comments: Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded. with the patient's past medical history of ventricular tachycardia is confounder. Based on biological implausibility, the event of COVID-19 infection, causality is assessed as not applicable in relation to mRNA-1273.