Age: 67.0
Sex: M
Vaccine: COVID19
Symptoms: Atrial fibrillation
Clinical narrative: For doctor 2 he is an OB/GYN who received the vaccine and then went into AFib immediately; This spontaneous case was reported by an other health care professional and describes the occurrence of ATRIAL FIBRILLATION (For doctor 2 he is an OB/GYN who received the vaccine and then went into AFib immediately) in a 67-year-old male patient who received mRNA-1273.815 (SPIKEVAX 2023-2024) for COVID-19 prophylaxis.     No Medical History information was reported.   On an unknown date, the patient received second dose of mRNA-1273.815 (SPIKEVAX 2023-2024) (unknown route) 1 dosage form. On an unknown date, received first dose of mRNA-1273.815 (SPIKEVAX 2023-2024) (unknown route) dosage was changed to 1 dosage form. On an unknown date, the patient experienced ATRIAL FIBRILLATION (For doctor 2 he is an OB/GYN who received the vaccine and then went into AFib immediately) (seriousness criteria medically significant and life threatening). The patient was treated with Surgery (Ablation) for Atrial fibrillation. At the time of the report, ATRIAL FIBRILLATION (For doctor 2 he is an OB/GYN who received the vaccine and then went into AFib immediately) had not resolved.        For mRNA-1273.815 (SPIKEVAX 2023-2024) (Unknown), the reporter did not provide any causality assessments.   Concomitant medication not reported.  It was unknown if patient receive any other vaccines in the 4 weeks prior to COVID-19 vaccine. The Doctor 2 was an OB/GYN (obstetrics and gynecology) who received the vaccine and then went into AFib (Atrial fibrillation) immediately, then two weeks later he had an ablation for his AFib. He got the second dose of the COVID-19 vaccine he thought that it wasn't related to the vaccine, but after the 2nd dose he immediately went into AFib and doctors had to cardiovert him back out of it.  Treatment medication not reported.  Company Comment: This is a Spontaneous case reported by other health care professional, concerning a 67-year-old male patient, with no medical history reported, who experienced the unexpected and serious (due to life-threatening and medically significant) AESI of Atrial fibrillation, and the unexpected and serious (due to medically significant) AESI of Atrial fibrillation, which occurred after primary vaccination with SPIKEVAX 2023-2024 vaccine. As reported, after first dose of SPIKEVAX 2023-2024, the patient went into atrial fibrillation immediately. Then two weeks later he had an ablatio. He got the second dose of the COVID-19 vaccine thinking that it wasn't related to the vaccine, but after the 2nd dose he immediately went into atrial fibrillation, and doctors had to cardiovert him back out of it. At the time of the report, the events had not resolved. The rechallenge was positive. The benefit-risk relationship of SPIKEVAX 2023-2024 vaccine is not affected by this report.   This case was linked to US-MODERNATX, INC.-MOD-2023-751793, US-MODERNATX, INC.-MOD-2023-751801, US-MODERNATX, INC.-MOD-2023-751806.; Sender's Comments:  US-MODERNATX, INC.-MOD-2023-751793:Different patient same product (doctor) US-MODERNATX, INC.-MOD-2023-751806:Different patient same product (serveral patient case) US-MODERNATX, INC.-MOD-2023-751801:Different patient same product (doctor's son)