IMPULSE OSCILLOMETRY IN PREGNANT ASTHMATIC WOMEN

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

BIDAD K.; HEYDARNEZHAD HASAN; POURPAK Z.; RAMAZANZADEH F.; MOEIN M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Seminar Paper

Paper Information

Seminar: BIENNIAL CONGRESS ON IMMUNOLOGY, ASTHMA AND ALLERGY
Year:2007 | Issue:6

Download Full-Text

View:

159

Download:

Information Seminar Paper

Title

IMPULSE OSCILLOMETRY IN PREGNANT ASTHMATIC WOMEN

Author(s)

BIDAD K. | HEYDARNEZHAD HASAN | POURPAK Z. | RAMAZANZADEH F. | MOEIN M.

Keywords

Not Registered.

Abstract

Introduction: Asthma is the most common respiratory disorder to complicate pregnancy and represents a significant public health issue. On many occasions these patients are unable to perform standardized spirometry. The Impulse Oscillometry Technique (IOS) may be suitable in this application since it allows the assessment of airway obstruction by requiring minimum patient cooperation.Aim: Our aim was to identify the relationship between R5, X5, and Resonant Frequency to the 1s forced expiratory volume (FEV1) and forced vital capacity (FVC) in pregnant women.Methods: In 20 asthmatic pregnant patients aged 20-32 yr (mean 26.7 yr) spirometry and impulse oscillometry (Erich Jaeger, Germany) was performed according to standard guidelines and manufacturer’s instructions. Relationships between spirometric indices and total Resistance (R5), central resistance (R20), peripheral reactance (X5) and Resonance Frequency (FRes) were obtained using correlation and regression analysis. Volumes are expressed in litres and resistance in kpa.1.s.Results: Mean ± SD of FEV1 was 2.7±0.4, FVC was 3.4±0.5, FEV1/FVC was 81.11±8.4, R5 was 0.54±0.15, X5 was -0.16±0.14 and FRes was 0.57±0.19. There was significant (p<0.001) correlation between the FEV1 and R5, X5, Z5 and FRes.R5: FEV1=3.73-1.76R5, R²=0.44; FVC=4.11-1.21R5, R²=0.11X5: FEV1=3.10+1.98X5, R²=0.47; FVC=3.65+1.23X5, R²=0.10FRes: FEV1=3.74-5.13 fres, R²=0.64; FVC=4.28 -4.42 fres, R²=0.26Conclusion: These results suggest that Impulse Oscillometry is a valuable tool to assess airway obstruction as it is simple and requires minimal subject cooperation. This new field of oscillometry application may be particularly useful in patients who are unable to perform spirometry. Further studies are required to determine the sensitivity and specificity of this technique.

Cites

No record.

References

No record.

Cite

APA: Copy

BIDAD, K., HEYDARNEZHAD, HASAN, POURPAK, Z., RAMAZANZADEH, F., & MOEIN, M.. (2007). IMPULSE OSCILLOMETRY IN PREGNANT ASTHMATIC WOMEN. BIENNIAL CONGRESS ON IMMUNOLOGY, ASTHMA AND ALLERGY. SID. https://sid.ir/paper/902547/en

Vancouver: Copy

BIDAD K., HEYDARNEZHAD HASAN, POURPAK Z., RAMAZANZADEH F., MOEIN M.. IMPULSE OSCILLOMETRY IN PREGNANT ASTHMATIC WOMEN. 2007. Available from: https://sid.ir/paper/902547/en

IEEE: Copy

K. BIDAD, HASAN HEYDARNEZHAD, Z. POURPAK, F. RAMAZANZADEH, and M. MOEIN, “IMPULSE OSCILLOMETRY IN PREGNANT ASTHMATIC WOMEN,” presented at the BIENNIAL CONGRESS ON IMMUNOLOGY, ASTHMA AND ALLERGY. 2007, [Online]. Available: https://sid.ir/paper/902547/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops