Table 1.

Patient Characteristics and Outcomes of 7 patients reported with myocarditis after second dose of mRNA COVID-19 vaccination.

Variables	Case 1	Case 2	Case 3	Case 4	Case 5	Case 6	Case 7
Age	28	34	19	16	22	17	36
Gender	Male	Male	Male	Male	Male	Male	Male
Prior COVID-19 infection	No	No	No	No	No	No	No
Vaccine type	BNT162b2	BNT162b2	mRNA-1273	BNT162b2	BNT162b2	BNT162b2	mRNA-1273
Doses received	2	2	2	2	2	2	2
Presenting symptoms	Chest, fatigue pain	Chest pain, fever, and SOB	Chest pain, fatigue	Chest pain, and chills, fatigue	Chest pain, fatigue, fever, headache	Chest pain, fever, and fatigue	Chest pain, SOB, and myalgia
Days to symptom onset	3	2	2	4	1	2	1
Troponin level	Elevated	Elevated	Elevated	Elevated	Elevated	Elevated	Elevated
CRP, mg/dL	Abnormal	Abnormal	Abnormal	Abnormal	Abnormal	Abnormal	Abnormal
Left ventricular ejection fraction (LVEF%)	58%	55%	65%	57%	53%	61%	45%–50%
ECG (ST- change)	Abnormal	Abnormal	Abnormal	Abnormal	Abnormal	Abnormal	Abnormal
Rhythm	Normal sinus	Normal sinus	Normal sinus	Normal sinus	Normal sinus	Normal sinus	Normal sinus
	rhythm	rhythm	rhythm	rhythm	rhythm	rhythm	rhythm
Chest radiography	Normal	Normal	Normal	Normal	Normal	Normal	Normal
COVID-19 testing (PCR)	Negative	Negative	Negative	Negative	Negative	Negative	Negative
Blood pressure, mm Hg	105/68	125/85	115/80	122/76	112/75	126/68	135/87
Heart rate, bpm	73	65	68	81	79	82	74
Respirations, per min	16	18	17	16	18	16	19
Temperature, °C	36.6	37	36.5	36.7	37.5	37.2	36.8
Length of hospital stay	2	1	3	2	3	2	4
Treatment (s)	Colchicine, NSAIDs	NSAIDs	NSAIDs	NSAIDs	Colchicine, NSAIDs	NSAIDs	Colchicine, NSAIDs
Outcome	Discharged	Discharged	Discharged	Discharged	Discharged	Discharged	Discharged