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==Sarcoidosis== | ==Sarcoidosis== | ||
In patients with proven pulmonary sarcoidosis ECG changes can be used as a marker of cardiac involvement. Presence of a fractionated QRS | In patients with proven pulmonary sarcoidosis ECG changes can be used as a marker of cardiac involvement. Presence of a fractionated QRS or a Bundle Branch Block increases the likelihood of cardiac involvement.<cite>schuller</cite> | ||
{{Box| | {{Box| |