Pulmonary function in sickle cell disease with or without acute chest syndrome

被引:78
|
作者
Santoli, F
Zerah, F
Vasile, N
Bachir, D
Galacteros, F
Atlan, G [1 ]
机构
[1] Hop Henri Mondor, Serv Physiol Explorat Fonct, F-94010 Creteil, France
[2] Hop Henri Mondor, INSERM, U296, F-94010 Creteil, France
[3] Hop Henri Mondor, Serv Radiol, F-94010 Creteil, France
[4] Hop Henri Mondor, Ctr Drepanocytose, F-94010 Creteil, France
关键词
adults; diffusing capacity; gas exchange; lung volumes; oscillatory parameters; sickle cell disease;
D O I
10.1183/09031936.98.12051124
中图分类号
R56 [呼吸系及胸部疾病];
学科分类号
摘要
Recurrent acute chest syndrome (ACS) has been suggested as a risk factor for chronic lung dysfunction in sickle cell disease. To investigate this hypothesis, lung function tests were performed in 49 sickle cell disease outpatients whose condition was stable, including 23 patients with a history of two to four episodes of ACS (ACS+) and 26 with no history of ACS (ACS-), The two groups were comparable regarding the sex ratio, body mass index, smoking history, physical characteristics, clinical history and usual lung function tests. Respiratory resistance (Rrs), measured using the forced oscillation technique, increased with the number of ACS episodes (r=0.55, p<0.0001) and a significant relationship was observed between Rrs as an independent variable and tbe expiratory flow rates at 25, 50 and 25-75% of the forced vital capacity as explanatory variables (r=0.36, p<0.02; r=035, p<0.02; and r=0.4, p<0.006, respectively), with higher Rrs being associated with lower expiratory how rates. The transfer factor (TL,CO) and transfer coefficient (KCO) fur CO were significantly higher in the ACS+ group than in the ACS-group (TL,CO=84+/-4 versus 71+/-3%, p<0.004 and KCO=102+/-5 versus 90+/-3%, p<0.05, respectively). The data demonstrate that obstructive lung dysfunction is fairly common in sickle cell disease and suggest that recurrent acute chest syndrome may contribute specific obstructive defects. The increase in respiratory resistance associated with acute chest syndrome was accompanied by an increase in diffusion capacity, suggesting that it may have been related to an increase in lung blood volume.
引用
收藏
页码:1124 / 1129
页数:6
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