Study design and patients
Myasthenia gravis, coronary heart disease, hyperplastic thymus or thymus tumor, pain
CHRONIC OBSTRUCTIVE PULMONARY DISEASE, MYASTHENIA GRAVIS, CORONARY HEART DISEASE
This study was designed as a parallel randomized controlled trial. Eighty patients with MG scheduled for extended thymectomy were randomly divided into study group (SG) and control group (CG). The following inclusion criteria were applied: Patients aged < 65 years with Myasthenia gravis who underwent extended thymectomy (resection of hyperplastic thymus or thymus tumor body) plus mediastinal fat dissection, followed by postoperative insertion of a thoracic drainage tube were enrolled in this study from July 2020 to December 2021 at the First Affiliated Hospital of Sun Yat-sen University. The exclusion criteria of this study were as follows: Patients were excluded if they had significant coronary heart disease, chronic obstructive pulmonary disease, or Joint pain of limbs. The study protocol was approved by the ethics committee of the First Affiliated Hospital of Sun Yat-sen University (No. [2020] 461), and all patients provided written informed consent.