Observation of pulmonary function in patients with diabetes mellitus

Hongying YU; Shan WANG; Yan ZHANG; Huimin BI

ABSTRACT

BACKGROUND:

The morbidity of diabetes mellitus increased recently.There are few reports about the pulmonary function status of the patients with diabetes mellitus.

OBJECTIVE:

To comparably observe the difference of the pulmonary function status between patients with diabetes mellitus and normal persons,and to probe into the relationship between the course of disease of diabetes mellitus and the functional change of pulmonary function.

DESIGN:

Case controlled observation

SETTING:

Renmin Hospital, Wuhan University

PARTICIPANTS:

Totally 90 patients with diabetes mellitus hospitalized in the Renmin Hospital, Wuhan University between January 2000 and De cember 2003 were recruited. All the patients participated in the experiment voluntarily. Totally 20 cases were of insulin dependent diabetes mellitns (IDDM) and 70 cases were of non-insulin dependent diabetes mellitus (NIDDM). Another 90 cases were divided into 2 groups with the boundary line of 10 years group with disease course ＜10 years (n=40) and group with disease course ＞10 years (n=50). And 30 normal persons with healthy pulmonary function was set as healthy control group, all the testees were voluntary participants in the experiment.

METHODS:

Pulmonary function index of the participants of each group was measured vital capacity (VC), forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1%), peak expiratory flow rate(PEFR)maximal voluntary ventilation (MVV) and comparison was performed between them.Comparison of the pulmonary function status of the patients between different levels of diabetes mellitus.pulmonary function between different groups Compared with health control group, VC , FVC and MVV of the patients with diabetes mellitus was significantly decreased (t=1.999-2.301, P ＜ 0.05).There was no significant difference in the VC, FVC and MVV between patients with monary function between patients with different diabetes mellitus the pulmonary function status in the group with disease course ＞10 years was improved less than that in the group with disease course ＜10 years [ VC (L)2.62±0.65 vs 3.25±1.25;FVC(L) 2.40±0.52 vs 3.21±0.98;FEV1%75.31±2.31 vs 80.63±5.56;PEFR (L/s)4.33±0.68 vs 5.98±1.02;MVV (L/s) 76.22±6.98 vs 89.21±5.69 (t=2.012-2.350, P ＜ 0.05)].

CONCLUSION:

Pulmonary function of the patients with diabetes mellitus has reduced tendency compared with the normal persons, and the pulmonary function of the patients with long course of disease decreases significantly. More attention should be paid to diabetes patients' pulmonary function changes.