Anesthesiologists using TEE provide information equivalent to that provided by any consulting physician (e.g., cardiologist) using echocardiography for a given indication. This is not part of, but rather in addition to, the anesthesia service being provided.
Anestesiologistas que usam ETE fornecem informações equivalentes às fornecidas por qualquer médico consultor (por exemplo, cardiologista) usando ecocardiografia para uma determinada indicação. Isso não faz parte, mas sim adiciona, além do serviço de anestesia fornecido.
Impact of Diastolic Function Parameters on the Risk for Left Atrial Appendage Thrombus in Patients with Nonvalvular Atrial Fibrillation: A Prospective Study
This prospective and concomitant evaluation of diastolic function and LAA thrombus in patients with NVAF demonstrates that E/e′ ratio and e′ velocity are associated with LAA thrombus, independent of CHA2DS2-VASc score, and may play a role in identifying patients at low risk for LAA thrombus. These data suggest that diastolic function assessment may improve stroke prediction in patients with NVAF.
Interessante uso da relação E/e´na fibrilação atrial.
Valores acima de 12 realmente estão relacionados a estase e trombos.
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A FAC já é uma disfunção importante quando perde a organização do ritmo sinusal.
Disease prevalence of our cohort was 29.4%. The area under the curve for the classification result on validation set was 0.87, and the average analysis time was 10 ± 3 ms per subject. Sensitivity, specificity and accuracy were 88.9%, 73.3% and 77.8%, respectively.
Cardiac stroke volume can be estimated by multiplying the velocity-time integral obtained from Doppler examination of the LV outflow tract by the LV outflow tract area . Doppler examination requires parallel alignment of the pulse-wave beam with the LV outflow tract. Nonparallel beam alignment can result in a reduced LV stroke volume by underestimating the velocity-time integral. Furthermore, this method requires accurate estimation of the LV outflow tract diameter; minor inaccuracies in diameter estimation result in marked errors in the area calculation because of the squaring of the radius.
Mas padece dos mesmos vícios que a estimativa de área valvar na estenose aórtica.
Assessment of LV function remains the most common reason for cardiac imaging because of its powerful ability to predict morbidity and mortality. Current routine methods of quantifying LV function (with LVEF) is not without limitations. Strain imaging that uses speckle tracking in 2-D and 3-D offers promise for quantifying LV function, particularly for patients with borderline LV function, because of the potential to identify subclinical disease. Strain imaging offers the treating physician a unique opportunity to alter management before the onset of overt LV dysfunction, which may, in turn, improve prognosis.
The results of this study showed that GAS ( left ventricular global area strain) derived from 3D‐STI was more accurate and sensitive in responding to myocardial damage than other strain parameters and LVEF in the anthracycline cycle of breast cancer patients. Due to its ability to predict subclinical cardiotoxicity associated with chemotherapy and to guide the early initiation of early cardiac protective therapy in the event of significant heart failure, measurement of GAS still has great prospects for clinical application.
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Os resultados deste estudo mostraram que o GAS ( Strain de área global do ventrículo esquerdo) derivado de 3D-STI foi mais preciso e sensível na resposta ao dano do miocárdio do que outros parâmetros de Strain e FEVE no ciclo de antraciclina de pacientes com câncer de mama. Devido à sua capacidade de prever cardiotoxicidade subclínica associada à quimioterapia e orientar o início precoce da terapia protetora cardíaca precoce em caso de insuficiência cardíaca significativa, a medição do GAS ainda tem grandes perspectivas de aplicação clínica.
The vast majority of transesophageal echocardiographic procedures are performed while the patient is sedated, typically using the moderate sedation standard. Patients undergoing procedures with sedation should abstain from food and beverages (other than clear liquids) for a minimum of 6 hours before the planned procedure and restrain from all intake for 3 hours before the procedure
Monitoring during conscious sedation requires, at a minimum, the assessment of heart rate, noninvasive blood pressure monitoring, respiratory rate, and oxygen saturation. Significant changes in blood pressure or heart rate should be avoided, particularly in cases performed for hemodynamic abnormalities that may be altered by these changes (i.e., valvular stenosis or regurgitation). Capnography is strongly recommended for conscious sedation and patients at risk for respiratory complications. It is mandated for deep sedation and anesthesia.
Sempre aguarde alguns minutos (3-5) com o paciente sentado APÓS aplicar o spray de Xylocaina.
Evite o decúbito lateral logo após o spray. Espere a Xylo agir!!!
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The most commonly used sedative agents are benzodiazepines, because of their anxiolytic properties, with midazolam being the best choice for most transesophageal echocardiographic procedures. Midazolam has a quick onset (1–2 min) and short duration of action (typically 15–30 min), and it provides better amnesia than other benzodiazepines.
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E o mais importante, a MANOBRA DA MOLA:
A sonda ecocardiográfica transesofágica é inserida no parte posterior da faringe, o que pode exigir uma leve pré-flexão da sonda. O paciente é solicitado a engolir e a sonda é avançada em uma posição neutra no esôfago enquanto o paciente engole. Garantir que a sonda está em uma posição neutra durante essa manobra e a linha média na faringe para evitar colocar a sonda na fossa piriforme.
