Acute myocarditis presenting as accelerated junctional rhythm in Graves’ disease: A case report

Table 1 Uniqueness of this case

Ref.	Setting	Main findings	Correlation and difference compared with this case
[6]	A 29-year-old male presents with hyperthyroidism and chest pain	The patient is diagnosed with new-onset of Graves’ disease combined with myocarditis	The manifestation in the study is similar to this case report. However, that patient has already known that he had hyperthyroidism, which reduces the difficulty of the diagnosis. That patient does not present with hypokalemic periodic paralysis. Withal, the patient presents with sinus tachycardia on the electrocardiograph instead of a junctional rhythm
[5]	A 40-year-old male presents with refractory hyperthyroidism and chest pain	The patient is diagnosed with Graves’ disease combined with myocarditis	The study is similar to the above research. The patient is finally diagnosed with refractory Graves’ disease combined with myocarditis. No other manifestations are observed
[7]	A 31-year-old woman with 2-mo pregnancy with hyperthyroidism complained of palpitation and excessive sweating	The patient is diagnosed with Graves’ disease combined with myocarditis	The patient has reduced ejection fraction in the study. Besides, the patient does not present with other combinations except for myocarditis, which is different from this case