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From the 9/17/2021 release of VAERS data:

This is VAERS ID 1426976

Case Details

VAERS ID: 1426976 (history)  
Form: Version 2.0  
Age: 12.0  
Sex: Male  
Location: Massachusetts  
   Days after vaccination:9
Submitted: 0000-00-00
Entered: 2021-06-25
Vaccin­ation / Manu­facturer Lot / Dose Site / Route

Administered by: Private       Purchased by: ?
Symptoms: C-reactive protein increased, Cardiac imaging procedure abnormal, Chest X-ray normal, Chest pain, Echocardiogram normal, Electrocardiogram ST segment elevation, Erythema migrans, Exposure via direct contact, Headache, Magnetic resonance imaging heart, Myocarditis, Parasitic blood test negative, Pyrexia, Tachycardia, Troponin T increased, Ultrasound scan normal
SMQs:, Neuroleptic malignant syndrome (broad), Myocardial infarction (narrow), Anticholinergic syndrome (broad), Arrhythmia related investigations, signs and symptoms (broad), Gastrointestinal nonspecific symptoms and therapeutic procedures (broad), Cardiomyopathy (broad), Medication errors (narrow), Drug reaction with eosinophilia and systemic symptoms syndrome (broad), Dehydration (broad), Immune-mediated/autoimmune disorders (broad)

Life Threatening? No
Birth Defect? No
Died? No
Permanent Disability? No
Recovered? Yes
Office Visit? No
ER Visit? No
ER or Doctor Visit? No
Hospitalized? Yes, 3 days
   Extended hospital stay? No
Previous Vaccinations:
Other Medications: acetaminophen, ibuprofen
Current Illness: None
Preexisting Conditions: None
Allergies: penicillin
Diagnostic Lab Data: Troponin T: peak 1.34 Relevant Diagnostic Images/Studies: CXR 6/22: Normal Echo 6/23: ? Normal valvular function. ? Normal left ventricular size with low-normal global systolic function. Normal indices of diastolic function. ? Poor acoustic windows; subtle regional wall motion abnormalities are difficult to exclude. ? Qualitatively normal right ventricular systolic function. ? No pericardial effusion. EKG 6/24: ST-T wave changes in inferolateral leads Cardiac MRI 6/24: ? Normal biventricular size with low-normal systolic function. No regional wall motion abnormalities. ? Subepicardial left ventricular myocardial late gadolinium enhancement as described below. ? No significant valvular dysfunction. ? No coronary artery aneurysms. ? No pericardial effusion. Tests Pending Ehrlichia and Anaplasma PCR, QuaL LCREFRIG Lyme Antibody, Total Diagnosis List 1. Myocarditis, 06/23/2021 2. Erythema migrans, 06/23/2021 3. Fever, 06/23/2021
CDC Split Type:

Write-up: Patient is a previously healthy fully-vaccinated 12 yo presenting with fever and chest pain. He had fevers to 101-102 6/17-6/19 that were responsive to antipyretics, then the chest pain started 6/20 and has been constant 5/10 pain since. It is burning and located substernal/between the scapula. Activity/breathing doesn''t worsen the pain, but it is worst at night. He also reports a mild headache today that has since resolved. He went to his PCP today and had an EKG concerning for diffuse precordial ST elevations, so he was referred to the ED with concern for myo/pericarditis. Of note, Patient received a second dose of the Pfizer COVID vaccine on 6/11. He also travels every week and has removed ticks from himself that were unattached. No known bites and no rashes. He has not had any n/v/d, no abdominal pain, no cough/congestion/rhinorrhea, no syncope, no palpitations. In the ED, he was well-appearing but tachycardic to the 120s with otherwise normal vitals. He developed fever to Tmax 38.3 that improved with Motrin. On exam he had rash concerning for erythema migrans with multiple satellite lesions. He an EKG with ST elevations in the inferolateral leads. POC US did not show any pericardial effusion. Cardiology was consulted (see consult note) and recommended troponin, which was 1.08, and CRP, which was 7.52. CXR showed clear lungs and normal cardiac contours. Hospital Course: Patient was admitted for further workup and management of his perimyocarditis. Given his erythema migrans rash and positive history of recent multiple tick exposure, we were concerned about Lyme disease (Lyme antibody pending) and sent testing for co-infection (Anaplasma, Ehrlichiosis) with smear negative for Babesia. We treated him empirically with doxycycline (given antibiotic allergies) and his rash improved. We also considered myocarditis following COVID vaccination. He had serial EKG''s done which showed low-normal function, with EF=55.2%. He had serial troponins sent and they were downtrending at the time of discharge. He had chest pain that improved with PRN ibuprofen. He did not require steroids or IVIG. Cardiac MRI was completed prior to discharge and showed normal function and an area of subepicardial LV myocardial late gadolinium enhancement. consistent with myocarditis. At the time of discharge, he had no chest pain, was eating and drinking normally, and family was in agreement with plan for close Cardiology and Infectious Disease follow-up.

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