Introduction Ortner's syndrome, also known as cardiovocal syndrome, is a rare clinical entity with hoarseness due to left recurrent laryngeal nerve (RLN) palsy owing to a cardiovascular disease. Norbert Ortner ascribed hoarseness of voice RLN palsy in patients with several mitral stenosis, postulating that an enlarged left atrium could be responsible for the recurrent laryngeal nerve palsy. Case report A 63-year-old man with a history of progressive hoarseness of voice developed since over three months. Flexible laryngoscopy revealed a fixed left vocal cord in the paramedian position. The chest enhanced axial computed tomography confirmed a large left ventricular aneurysm. Conclusions Hoarseness has significant public health implications. Patients suffer from social deprivation, depression and a poor quality of life. Several underlying conditions are associated with the cardiovocal syndrome, including iatrogenic, congenital, mitral valve disorders, aortic and ventricular aneurysms. Laryngoscopy is indicated for the assessment of hoarseness if symptoms fail to improve or resolve within three months, or at any time when the clinician suspects a serious underlying disorder.