Summary total lung capacity (TLC), residual volume (RV) and RV/TLC parameters of healthy Vietnamese people aged 18 – 25 measured by plethysmography method

SUMMARY TOTAL LUNG CAPACITY (TLC), RESIDUAL VOLUME (RV) AND RV/TLC PARAMETERS OF HEALTHY VIETNAMESE PEOPLE AGED 18 – 25 MEASURED BY PLETHYSMOGRAPHY METHOD


Le Tuan Thanh1 , Nguyen Khac Toan 2,3, Vu Bich Phuong2,3, Do Hai Dang2,3 , Phi Thi Quynh Anh4 , Dau Xuan Canh5 , Nguyen Thi Thanh Huong2,3


1: Bach Mai Hospital

2: Dinh Tien Hoang Institute of Medicine

3: Hanoi Medical University

4: Vietnam National Hospital of Pediatrics

5: Vietnam Academy of Traditional Medicine

 

The research was published in No 20, Vietnam Journal of Physiology (06/2016)


Residual volume (RV) and total lung capacity (TCL) are important parameters for diagnosis of emphysema. The body plethysmography is a new method that has been applying in some hospitals and research centers in Vietnam, however, the reference data for healthy adult is not enough, if any. Therefore, this study was conducted with aim is to determine TCL, RV and RV/TCL parameters of healthy Vienamese people aged 18 – 25 using plethysmography method. A cross-sectional study was appled in 95 healthy Vietnamese people with ages 18- 25. The result showed that the TCL index of men and women were 5,62 ± 0,67 (L) and 4,26 + 0,63 (L), respectively. The RV index of men and women were 1,84 + 0,64 (L) và 1,48 + 0,43(L), respectively.The RV/TCL of men and women were similar and were 34,0 ± 7 (%) và 33,0 ± 10 (%), respectively. The TCL and RV of Vietnamese people were lower than that of other race with the same gender and age, therefore, it is necessary to establish a reference data for Vietnamese people. Keywords: Residual volume, total lung capacity, plethysmography.