had lower intestine blocked; heart rate was of 200; hands started shaking/messed up his hands; heart problems; This spontaneous case was reported by a patient and describes the occurrence of INTESTINAL OBSTRUCTION (had lower intestine blocked), TACHYCARDIA (heart rate was of 200), TREMOR (hands started shaking/messed up his hands) and CARDIAC DISORDER (heart problems) in a 69-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 020f21a, 031m20a and 044a21a) for COVID-19 vaccination.     It was reported that patient never had COVID positive test or diagnosis.  Concurrent medical conditions included Allergy to plants (Allergic to Trees).   On 23-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 29-Mar-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 06-Nov-2021, received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On an unknown date, the patient experienced INTESTINAL OBSTRUCTION (had lower intestine blocked) (seriousness criteria hospitalization and medically significant), TACHYCARDIA (heart rate was of 200) (seriousness criterion hospitalization), TREMOR (hands started shaking/messed up his hands) (seriousness criterion hospitalization) and CARDIAC DISORDER (heart problems) (seriousness criterion hospitalization). The patient was treated with WARFARINE at an unspecified dose and frequency; ACETYLSALICYLIC ACID (BABY ASPIRIN) at an unspecified dose and frequency and RIVAROXABAN (XARELTO) at an unspecified dose and frequency. At the time of the report, INTESTINAL OBSTRUCTION (had lower intestine blocked), TACHYCARDIA (heart rate was of 200), TREMOR (hands started shaking/messed up his hands) and CARDIAC DISORDER (heart problems) had not resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On an unknown date, Heart rate: 200 200.         Concomitant medications included regular medicines. It was reported that patient cant do anything. It was reported that patient did not experience similar events in the past. It was reported that symptoms have worsened. Treatment included Warfarine Xarelto and put patient on a watch or monitor and received plasma. Patient stayed 5 more days on the hospital to get his heart rhythm normalized and received blood thinners and baby aspirin.  Company Comment: This spontaneous case concerns a 69-year-old male patient with no relevant medical history, who experienced the unexpected, serious (Hospitalization and medically significant) event of Intestinal obstruction, and unexpected, serious (Hospitalization) events of Tachycardia, Tremor, and Cardiac disorder (reported as Heart problems).  The events occurred on an unknown date after receiving the first booster dose of mRNA-1273 vaccine.   Patient presented with lower intestinal block prompting admission where he was found with heart rate of 200, shaking of hands and heart problems.  Patient received plasma treatment, given Warfarin, Xarelto, and Aspirin, and placed on cardiac monitor. Patient stayed 5 more days in the hospital to get his heart rhythm normalized.  Patient previously received a 2-dose primary series of mRNA-1273 vaccine given 34 days apart, the last dose of which was administered 7 months and 8 days prior to current mRNA-1273 vaccine. The benefit-risk relationship of mRNA-1273 vaccine is not affected by this report.; Sender's Comments: This spontaneous case concerns a 69-year-old male patient with no relevant medical history, who experienced the unexpected, serious (Hospitalization and medically significant) event of Intestinal obstruction, and unexpected, serious (Hospitalization) events of Tachycardia, Tremor, and Cardiac disorder (reported as Heart problems).  The events occurred on an unknown date after receiving the first booster dose of mRNA-1273 vaccine.   Patient presented with lower intestinal block prompting admission where he was evaluated with heart rate of 200, shaking of hands and heart problems.  Patient received plasma treatment, given Warfarin, Xarelto, and Aspirin, and placed on cardiac monitor. Patient stayed 5 more days in the hospital to get his heart rhythm normalized.  Patient previously received a 2-dose primary series of mRNA-1273 vaccine given 34 days apart, the last dose of which was administered 7 months and 8 days prior to current mRNA-1273 vaccine. The benefit-risk relationship of mRNA-1273 vaccine is not affected by this report.