Usman Ahmad

Video
November 4, 2025 | Andres Obeso

Patient Selection This 42-year-old female patient with seropositive myasthenia gravis was receiving treatment with oral prednisone and pyridostigmine. She presented with persistent generalized weakness. Imaging revealed a 9 cm lobulated mass in the right anterior...

Video
March 6, 2025 | Andres Obeso

Patient Selection The main indication for thoracic truncal vagotomy is recalcitrant marginal ulcer following previous gastric surgery (1,2). This procedure helps reduce gastric acid production, promoting ulcer healing and preventing...