The Korean journal of internal medicine

  • 제27권1호
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  • Pages.53-59
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  • 2012
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  • 1226-3303(pISSN)
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  • 2005-6648(eISSN)
대한내과학회 (The Korean Association of Internal Medicine)
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Normalization of Negative T-Wave on Electrocardiography and Right Ventricular Dysfunction in Patients with an Acute Pulmonary Embolism

  • Choi, Bo-Youn (Division of Cardiology, Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine) ;
  • Park, Dae-Gyun (Division of Cardiology, Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine)
  • 발행 : 2012.03.01
⟨ 이전 논문 다음 논문 ⟩

초록

Background/Aims: Right ventricular dysfunction (RVD) is associated with poor prognosis in patients with acute pulmonary embolism (APE). Echocardiography and computed tomography (CT)-angiography may be difficult to perform in a serial follow up, unlike electrocardiography (ECG). Many ECG findings specific for APE have been reported, and many studies have found that negative T-waves (NTW) in precordial leads are most frequently observed in patients with APE. We analyzed serial changes in precordial NTW to detect RVD and predict the recovery of RVD in patients with APE. Methods: We examined 81 consecutive patients diagnosed with APE using CT-angiography or echocardiography. ECG, transthoracic echocardiography, and laboratory tests were performed within 24 hours of admission, and daily ECG followup was performed. Precordial NTWs were defined by the new development of pointed and symmetrical inverted T-waves in at least three leads. Recovery of NTW was defined as flattening or upright inverted T-waves in more than two leads. Results: Of the 81 patients with APE, 52 (64%) had RVD according to echocardiography. Among the patients with RVD, 33 (63%) showed precordial NTW. The multivariate logistic regression analysis revealed that NTW was the strongest independent predictor for RVD (odds ratio, 22.8; 95% confidence interval, 2.4 to 221.4; p = 0.007). Time to normalization of NTW was associated with improvement of RVD on echocardiography (r = 0.84, p < 0.01). Conclusions: Precordial NTW was a reliable finding to identify RVD in patients with APE. Improvements in RVD can be predicted by normalizing precordial NTW.

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참고문헌

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