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[Which cardiologic diagnosis in patients with cerebral ischemia?]
1Medizinische Universitätsklinik, Innere Medizin III, Homburg.
Insights
Transthoracic echocardiography (TTE) and transesophageal imaging (TEE) help clarify acute stroke therapy by assessing cardiac function and identifying clot sources. TEE is used when TTE is insufficient or for specific concerns like prosthetic valve vegetations.
Area of Science:
- Cardiology
- Neurology
- Medical Imaging
Context:
- Acute stroke management requires precise diagnostic tools.
- Initial assessment includes patient history, clinical findings, ECG, and blood tests.
- Echocardiography plays a crucial role in guiding stroke therapy.
Purpose:
- To clarify the indications and utility of echocardiography in acute stroke management.
- To differentiate the roles of transthoracic echocardiography (TTE) and transesophageal echocardiography (TEE).
- To determine when advanced imaging is necessary for therapeutic decision-making.
Summary:
- Transthoracic echocardiography (TTE) evaluates left ventricular function, post-myocardial infarction thrombi, and valvular lesions.
- Transesophageal echocardiography (TEE) is indicated when TTE is inadequate or for specific diagnoses, such as prosthetic valve vegetations.
- Both TTE and TEE are essential for identifying potential embolic sources like patent foramen ovale and aortic atherosclerosis, guiding secondary prophylaxis.
Impact:
- Optimizes the use of echocardiographic procedures in acute stroke care.
- Enhances diagnostic accuracy for cardiac-related stroke etiology.
- Facilitates timely and appropriate therapeutic interventions, including secondary prevention strategies.
Abstract:
There are few scenarios which need urgent clarification for the acute therapy of stroke. Normally, the patient's history, clinical findings, an electrocardiogram and a limited number of blood tests are suitable to govern precise management. Additional questions can be answered by transthoracic echocardiography (TTE) which gives information on left ventricular function, the development of thrombi after myocardial infarction, valvular lesions or vegetations. Transesophageal imaging (TEE) is required if TTE remains technically inadequate or if specific questions (e.g. the suspicion of a mitral valve prosthetic vegetation) shall be answered. The procedure is indicated only if therapeutic implications can be anticipated. Outside scientific protocols, the same criterion has to be applied when screening for potential sources of emboli (patent foramen ovale, atherosclerotic lesions of the ascending aorta) which can only be detected by TEE with adequate sensitivity and may be shown to require secondary prophylaxis in the near future.