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Revista Cubana de Cirugía

On-line version ISSN 1561-2945

Abstract

FUENTES VALDES, Edelberto  and  PEREZ GARCIA, Kymani. Extended Transsternal Thymectomy in Patients with Myasthenia Gravis. Rev Cubana Cir [online]. 2021, vol.60, n.4  Epub Dec 01, 2021. ISSN 1561-2945.

Introduction:

Acquired myasthenia gravis (MG) is a neuromuscular transmission disorder caused by the union of autoantibodies and the components of the neuromuscular plaque, most frequently with the acetylcholine receptor.

Objective:

To assess the immediate surgical outcomes of extended thymectomy in patients with thymomatous and nonthymomatous myasthenia gravis.

Methods:

An observational, prospective and descriptive study was carried out to assess the immediate postoperative outcomes of 21 patients operated on for myasthenia gravis between June 2015 and May 2020. The variables studied were age, sex, associated thymic lesions, and immediate outcomes: complications and mortality that occurred up to thirty days after the intervention. The data were obtained from a Microsoft Access database.

Results:

Sixteen (76.2%) belonged to the female sex and five (23.8%) to the male sex. The highest number corresponded to MG with thymoma, followed by MG and thymic hyperplasia (8) and one with MG and thymic remains. Three patients (14.3%) were complicated. One had two complications: subcutaneous emphysema and septicemia; the next had unexplained fever; and the last one had superficial wound infection. There were no deaths.

Conclusions:

Extended transsternal thymectomy allows removal of the thymus and most of the adipose and aberrant thymic tissues in the neck and mediastinum. In patients treated by multidisciplinary teams, with experience in this surgery, outcomes regarding early complications and mortality are usually favorable.

Keywords : myasthenia gravis; thymoma; hyperplasia; extended thymectomy.

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