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It is possible for the MR to get worse. There is an observation – MR begets MR.
More likely the disorder of rhythm could be contributing.
The pauses might have become longer –
Sick Sinus Syndrome
may be the underlying cause.
You should see your doctor as early as possible / Physical examination, ECHOcardiography
and event monitor have to be repeated.
It is not possible to conclude definitely, otherwise.
It is not wise to wait. An emergency may be precipitated at any time.
Wishing speedy recovery