Phrenic nerve palsy causing hemidiaphragm paralysis is a very uncommon feature of thoracic aortic aneurysm. In one case, a 45-year-old man complained of chronic chest pain, dysphagia, and hoarseness of voice; posteroanterior view chest radiograph revealed lobular enlargement of the superior mediastinum and elevated right hemidiaphragm. Contrast-enhanced computed tomography (CT) of the thorax revealed a giant partially thrombosed aneurysm originating from the ascending aorta and extending into the aortic arch, causing a widening of the aorta-pulmonary window and a compression of the thoracic esophagus. Right hemidiaphragm elevation was explained by the gross mass effect of the aneurysm on the right hilum, causing right phrenic nerve palsy. The patient was to be operated on for surgical correction of the aneurysm, but died before surgery due to spontaneous rupture.
Deglutition Disorders ; Hoarseness ; Aortic Aneurysm, Thoracic ; Paralysis ; Phrenic Nerve

This study aimed to evaluate perceptions of safety and preparedness among health workers caring for coronavirus disease 2019 (COVID-19) patients before and after a multi-professional simulation-based course in Pakistan. Health workers’ perceptions of preparedness, safety, and their willingness to care for COVID-19 patients were measured before and after they attended a simulation-based training course to prepare them to care for COVID-19 patients at Combined Military Hospital Landi Kotal Cantt, from March 1 to April 30, 2020. The participants’ perceived level of safety and preparedness to care for COVID-19 patients before the simulation-based course was low, but increased after completing it (P<0.05). They felt confident and were significantly more willing to care for patients with COVID-19 or other infections requiring strict isolation. Simulation-based training is an effective tool to improve perceptions of risk and readiness to deal with COVID-19 among medical and non-medical health workers in Pakistan.