Patient instruction depends on individual patient characteristics. Universal limitation of salt and water intake for volume and blood pressure management is recommended for all patients with myocarditis. Home blood pressure measurement and daily weight recordings with frequent communication with the general practitioner are ideal.
Patients should be advised to avoid strenuous exercise and competitive sports for 3-6 months after diagnosis.[15]Law YM, Lal AK, Chen S, et al. Diagnosis and management of myocarditis in children: a scientific statement from the American Heart Association. Circulation. 2021 Aug 10;144(6):e123-35.
https://www.ahajournals.org/doi/full/10.1161/CIR.0000000000001001
http://www.ncbi.nlm.nih.gov/pubmed/34229446?tool=bestpractice.com
[56]Writing Committee, Drazner MH, Bozkurt B, et al. 2024 ACC Expert Consensus Decision Pathway on strategies and criteria for the diagnosis and management of myocarditis: a report of the American College of Cardiology Solution Set Oversight Committee. J Am Coll Cardiol. 2025 Feb 4;85(4):391-431.
https://www.jacc.org/doi/10.1016/j.jacc.2024.10.080
http://www.ncbi.nlm.nih.gov/pubmed/39665703?tool=bestpractice.com
However, excessive sedentary behaviour should also be avoided, and patients can generally continue the activities of daily living.[56]Writing Committee, Drazner MH, Bozkurt B, et al. 2024 ACC Expert Consensus Decision Pathway on strategies and criteria for the diagnosis and management of myocarditis: a report of the American College of Cardiology Solution Set Oversight Committee. J Am Coll Cardiol. 2025 Feb 4;85(4):391-431.
https://www.jacc.org/doi/10.1016/j.jacc.2024.10.080
http://www.ncbi.nlm.nih.gov/pubmed/39665703?tool=bestpractice.com
After 3-6 months, return to sports is permitted if symptoms have resolved and follow-up tests are normal. See Monitoring.
Patients with a history of myocarditis should be encouraged to abstain from alcohol, although the effects of modest alcohol consumption on non-alcohol-related cardiomyopathy are unknown.