Esophageal achalasia is a motility disorder characterized by impaired relaxation of the lower esophageal sphincter and dilatation of the distal two-thirds of the esophagus. This condition may be a non-frequent reason of extrinsic compression of left atrium. In turn, this can be a cause of some hemodynamic changes such as chest discomfort, dyspnea or reduced exercise tolerance, systemic hypotension and tachycardia. We describe a case of a patient with esophagus achalasia compressing the left atrium and inducing hemodynamic compromise. The diagnostic methods, as chest X-ray, computed tomography (CT), manometry, and 2D-Trans-Thoracic Echocardiography (TTE) demonstrated the esophagus dilation, the impaired relaxation of the lower esophageal sphincter, and its compression on the left atrium. Three-D Trans-Thoracic Echocardiography (3D-TTE) was firstly performed also. This last examination pointed out better than 2D-TTE the extrinsic compression of the left atrium due to the esophagus dilatation. Therefore, 3D-TTE is a true improvement for the echocardiographic diagnosis of the left atrial compression induced by esophageal achalasia.
Keywords: Esophageal achalasia; haemodynamic compromise; left atrium; three-dimensional echocardiography.