Relation between Coronary Flow Reserve using Transesophageal Echocardiography and Duke Treadmill Score in Patients with Microvascular Angina
Korean Circulation Journal
;
: 297-304, 2001.
Artigo
em Coreano
| WPRIM
| ID: wpr-81107
ABSTRACT
PURPOSE:
The triad of chest pain, normal coronary arteries and a positive stress test has been called microvascular angina. The link between coronary flow reserve(CFR) and Duke treadmill score(DTS) in patients with microvascular angina remains elusive.METHODS:
We studied 108 subjects (MF=860, mean age 54+/-9 yrs) with chest pain and normal coronary angiogram. Exercise treadmill test(ETT) was performed by Bruces protocol and the equation for calculating DTS was DTS=xercise time- (5xST deviation)-(4x exercise angina), with 0=one, 1=onlimiting, 2=exercise-limiting. The coronary flow velocity at diastole(PDV) using Transesophageal echocardiography (TEE) was obtained from the proximal left anterior descending coronary artery and coronary flow reserve(CFR) was calculated as the ratio of hyperemic PDV after the intravenous infusion of dipyridamole(0.56 mg/kg) to baseline PDV.RESULTS:
1) CFR was 3.04+/-0.45 in group with negative ETT and 2.19+/-0.62 in group with positive ETT(p or =+ on DTS(p< 0.001 versus low-risk, respectively). 3) DTS was significantly related to CFR (r=.704, p<0.001).CONCLUSION:
The composite DTS is closely related to CFR using TEE and might be a useful tool that can help clinicians determine the severity of ischemia and evaluate the efficacy of treatment in patients with microvascular angina.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Dor no Peito
/
Infusões Intravenosas
/
Angina Microvascular
/
Ecocardiografia Transesofagiana
/
Vasos Coronários
/
Teste de Esforço
/
Isquemia
Tipo de estudo:
Guia de Prática Clínica
Limite:
Humanos
Idioma:
Coreano
Revista:
Korean Circulation Journal
Ano de publicação:
2001
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS