[Risk stratification and prognostic evaluation of patients with pulmonary thromboembolism].
OBJECTIVE
To explore the risk stratification and prognostic evaluation of pulmonary thromboembolism (PTE).


METHODS
The clinical data of 46 patients suffering from PTE diagnosed by ventilation perfusion scan or spiral CT pulmonary angiography admitted to our hospital from January 2002 to December 2006 were analyzed retrospectively.


RESULTS
The total mortality was 33% (15/46 cases). The mortality in the group whose cardiac troponin I was positive (n=11) was 82% (9/11 cases), 17% (6/35 cases)when troponin I was negative (n=35). The mortality in normal electrocardiogram (ECG) group (n=14) and abnormal group (n=32) was 7% (1/14 cases) and 44% (14/32 cases) respectively. The mortality in the group with right ventricular dilatation (right ventricular diastolic dimension/left ventricular diastolic dimension > or =0.6) as shown by echocardiography (n=20) and without right ventricular dilatation (n=26) right ventricular diastolic dimension/left ventricular diastolic dimension<0.6) was 55% (11/20 cases) and 15% (4/26 cases) respectively. The mortality in the group whose pulmonary arterial obstruction index shown by spiral CT pulmonary angiography <0.6 (n=19) and > or =0.6 (n=11) was 5% (1/19 cases) and 91% (10/11 cases) respectively. The mortality between above groups showed statically significant difference (all P<0.05).


CONCLUSIONS
Cardiac troponin I, ECG, right ventricular dilatation by echocardiography and pulmonary arterial obstruction index by spiral CT pulmonary angiography may be taken as indices for risk stratification and prognostic evaluation of patients with PTE, and they may be helpful in optimizing treatment strategies.
Jiang
Long-yuan
LY
Department of Emergency, the Second Affiliated Hospital of Sun Yat-sen University, Guangzhou Guangdong, China. jly@china-em.com
Yang
Zheng-fei
ZF
Zhou
Tian-en
TE
Wen
Li-qiang
LQ
Yu
Tao
T
Huang
Zi-tong
ZT
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011655:Pulmonary Embolism; D012189:Retrospective Studies; D012307:Risk Factors