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- Title
Thymectomy in severe (Myasthenia Gravis Foundation of America classes IV–V) generalized myasthenia gravis: is the game really worth the candle? A retrospective analysis from a multi-institutional database.
- Authors
Brascia, Debora; Lucchi, Marco; Aprile, Vittorio; Guida, Melania; Ricciardi, Roberta; Rea, Federico; Comacchio, Giovanni Maria; Schiavon, Marco; Marino, Maria Carlotta; Margaritora, Stefano; Meacci, Elisa; Spagni, Gregorio; Evoli, Amelia; Lorenzoni, Giulia; Iaco, Giulia De; Palma, Angela De; Marulli, Giuseppe
- Abstract
Open in new tab Download slide OBJECTIVES Total thymectomy in addition to medical treatment is an accepted standard therapy for myasthenia gravis (MG). Patients with severe generalized MG present life-threatening events, poor prognosis and higher risk of postoperative myasthenic crisis. The aim of our study is to investigate neurological and surgical results in patients with Myasthenia Gravis Foundation of America (MGFA) class IV and V MG following thymectomy. METHODS Data on 76 MG patients with preoperative MGFA classes IV and V who underwent thymectomy were retrospectively collected. Primary end points included short-term surgical outcomes and long-term neurological results including the achievement of complete stable remission and any improvement as defined by MGFA Post-Intervention Status criteria. RESULTS There were 27 (35.5%) males and 49 (64.5%) females; 53 (69.7%) were classified as MGFA class IV and 23 (30.3%) as class V. Thymectomy was performed through sternotomy in 25 (32.9%) patients, Video-assisted thoracic surgery (VATS) in 5 (6.6%) and Robot-assisted thoracic surgery (RATS) in 46 (60.5%). The median operative time was 120 (interquartile range: 95; 148) min. In-hospital mortality was observed in 1 (1.3%) patient and postoperative complications in 14 (18.4%) patients. The median postoperative hospital stay was 4 (interquartile range: 3; 6) days. Pathological examination revealed 31 (40.8%) thymic hyperplasia/other benign and 45 (59.2%) thymomas. Cumulative complete stable remission and improvement probabilities were 20.6% and 83.7% at 5 years and 66.9% and 97.6% at 10 years, respectively. A significant improvement rate was found in patients with age at the time of thymectomy of ≤50 years (P = 0.0236), MGFA class V (P = 0.0154) and acetylcholine receptor antibodies positivity (P = 0.0152). CONCLUSIONS Thymectomy in patients with severe MG yields good perioperative outcomes and satisfactory long-term neurological improvement, especially for patients younger than 50 years, with MGFA class V and anti-AChR+ MG.
- Subjects
THYMECTOMY; MYASTHENIA gravis; VIDEO-assisted thoracic surgery; DATABASES; SURGICAL robots; THORACIC surgery; CHOLINERGIC receptors
- Publication
European Journal of Cardio-Thoracic Surgery, 2023, Vol 63, Issue 5, p1
- ISSN
1010-7940
- Publication type
Article
- DOI
10.1093/ejcts/ezad179