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The aim of the prospective observational TEDRAS - Follow-up Trial is to investigate the limitations of the initial TEDRAS - Trial in patients with acute Dysphagia is a common consequence from ischemic stroke and it correlates with an increased risk of pulmonary complications such as aspiration pneumonia and an increased mortality risk.
TEDRAS-Trial (Transesophageal Echocardiography: Dysphagia Risk in the Acute Phase After Stroke; ClinTrial.gov identifier NCT04302883) was the first randomized and controlled trial to address the question of the extent to which TEE increases dysphagia risk in acute stroke patients. The results of the study confirmed the hypothesis that dysphagia severity worsens after TEE in the intervention group.
The aim of the prospective observational TEDRAS - Follow-up Trial is to investigate the limitations of the initial TEDRAS - Trial in patients with acute ischemic stroke.
Dysphagia is a common consequence from ischemic stroke and it correlates with an increased risk of pulmonary complications such as aspiration pneumonia and an increased mortality risk.
Early detection of dysphagia increases the overall outcome, reduces the mortality risk, the risk of aspiration pneumonia, malnutrition as well as the length of hospitalization and the overall costs of treatment.
In German stroke units within 24 hours of admission stroke patients undergo a clinical swallowing screening and the flexible endoscopic evaluation of swallowing (FEES), if necessary. FEES allows for a valid assessment of swallowing and description of dysphagia symptoms via standardized scores as the Secretion Severity Sating Scale (SSRS), the Penetration-Aspirations-Scale (PAS), the Yale Pharyngeal Residue Severity Scale (YSPRSS) and the Functional Oral Intake Scale (FOIS-G).
Transesophageal echocardiography (TEE) is conducted within the first few days after stroke as a routine examination to detect whether a cardiac disorder was the cause of stroke. The implementation of a TEE during cardiac surgery has a significant correlation with occurrences of postoperative dysphagia in patients after cardiac surgery [1].
TEDRAS-Trial (Transesophageal Echocardiography: Dysphagia Risk in the Acute Phase After Stroke; ClinTrial.gov identifier NCT04302883) [2] was the first randomized and controlled trial to address the question of the extent to which TEE increases dysphagia risk in acute stroke patients. The results of the study confirmed the hypothesis that dysphagia severity worsens after TEE in the intervention group [2].
The aim of the prospective observational TEDRAS - Follow-up Trial is to investigate the limitations of the initial TEDRAS - Trial in patients with acute ischemic stroke.
In particular, the following parameters will be examined:
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Acute ischemic stroke | Patients with acute ischemic stroke and an indication for a transesophageal ecocardiography |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Flexible Endoscopic Evaluation of Swallowing (FEES) ; Transesophageal Ecocardiography (TEE) | Diagnostic Test | Flexible Endoscopic Evaluation of Swallowing (FEES): FEES is performed for analysis of swallowing ability according to the same methodology as in the initial trial: one day before a TEE and max. 4 hours after TEE. Before the FEES anticongestive nose drops are applied and the nostrils are anaesthetized by applying a lidocaine gel via cotton sticks. During the FEES examination the participants sit upright and are asked to swallow various consistencies: FEES is aborted in case of aspiration of any of the consistencies during the examination. Transesophageal Ecocardiography (TEE): For the TEE anesthesia is applied via intravenous injection of propofol or a combined anesthesia, through intravenous application of propofol and local anesthesia, using lidocaine spray. All patients undergoing a TEE are sober before and at least two to four hours after TEE. |
| Measure | Description | Time Frame |
|---|---|---|
| Penetration-Aspiration-Score (PAS) | Penetration-Aspiration-Score, minimum value 1, maximum value 8; higher scores mean worse outcome | Immediately after the intervention |
| Functional Oral Intake Scale-German (FOIS-G) | Functional Oral Intake Scale - German Version; minimum value 1, maximum value 7; higher scores mean better outcome | Immediately after the intervention |
| Yale Scale (YS) | Yale Pharyngeal Residue Severity Rating Scale; minimum value 1, maximum value 5; higher scores mean worse outcome | Immediately after the intervention |
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Inclusion Criteria:
Exclusion Criteria:
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Patients with acute ischemic stroke and indication for TEE
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Samra Hamzic, Dr | Contact | +4917699807230 | samra.hamzic@neuro.med.uni-giessen.de |
| Name | Affiliation | Role |
|---|---|---|
| Samra Hamzic, Dr | University Hospital Giessen and Marburg, Campus Giessen | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Hospital Giessen and Marburg | Recruiting | Giessen | Hesse | 35392 | Germany |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 32897605 | Result | Hamzic S, Braun T, Butz M, Khilan H, Weber S, Yeniguen M, Gerriets T, Schramm P, Juenemann M. Transesophageal Echocardiography - Dysphagia Risk in Acute Stroke (TEDRAS): a prospective, blind, randomized and controlled clinical trial. Eur J Neurol. 2021 Jan;28(1):172-181. doi: 10.1111/ene.14516. Epub 2020 Oct 10. | |
| 41146308 | Derived |
| Label | URL |
|---|---|
| Related Info | View source |
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| ID | Term |
|---|---|
| D000083242 | Ischemic Stroke |
| ID | Term |
|---|---|
| D020521 | Stroke |
| D002561 | Cerebrovascular Disorders |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
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| Hamzic S, Juenemann M, Braun T, Piayda K, Bauer P, Sossalla S, Gerriets T, Khilan H, Butz M, Schramm P, Omar OA. TEDRAS II - transesophageal echocardiography as dysphagia risk in the acute phase of stroke-protocol for a prospective pilot observational trial. Trials. 2025 Oct 27;26(1):445. doi: 10.1186/s13063-025-09065-5. |
| D009422 |
| Nervous System Diseases |
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |