What are the remission rates following thymectomy for myasthenia gravis (MG)?

Updated: Aug 27, 2018
  • Author: Abbas A Jowkar, MBBS; Chief Editor: Nicholas Lorenzo, MD, CPE, MHCM, FAAPL  more...
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Remission rate increases with time: at 7-10 years after surgery, it reaches 40-60% in all categories of patients except those with thymoma. In the absence of a thymoma, 85% of patients experience improvement, and 35% of these patients achieve drug-free remission. In a study by Nieto et al, the rate of remission in the presence of thymic hyperplasia was 42% compared to 18% in patients with thymoma. [57]

As there is a long delay in onset of beneficial effect of thymectomy for MG, an elective procedure should be performed when the patient is stable and deemed safe to undergo a procedure where postoperative pain and mechanical factors can limit respiratory function.

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