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All Journal Universa Medicina Jurnal Respirologi Indonesia
David Tjahjadi, David
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Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Torg ratios based on cervical lateral plain films in normal subjects Tjahjadi, David; Onibala, MZ
Universa Medicina Vol 29, No 1 (2010)
Publisher : Faculty of Medicine, Trisakti University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18051/UnivMed.2010.v29.8-13

Abstract

Stenosis of the spinal canal can be caused by trauma, degenerative processes, and tumors, causing a neurological deficit. If the neurological deficit could be detected or diagnosed earlier, the late complications such as quadriparesis could be prevented. The Torg ratio can be used to find evidence of cervical canal stenosis on lateral plain film, as it has the advantage of not being affected by magnification. The purpose of this study was to determine the Torg ratio for normal subjects using lateral plain films of cervical vertebrae. This cross-sectional study was done at the Department of Radiology FKUI/RSUPN-CM Jakarta, starting from September 16 – 20, 2008. The study included 98 subjects, aged 20 – 40 years, were the mean age of the subjects was 27.4 years (SD ± 5.4). All participants were subjected to measurement of the Torg ratio by cervical lateral plain film. The mean Torg ratio of normal subjects was 0.99 for males and 1.06 for females. The mean Torg ratio of several ethnicities were 1.04 for Javanese, 1.02 for Sundanese, 1.01 for Betawi, and 0.99 for other ethnicities. The mean Torg ratio of our subjects is different from that of other people, such as Pakistanis, Singaporeans, and Koreans. The mean Torg ratios of ethnicities are not significantly different from one another. Therefore, the Torg ratio can be relied upon to predict narrowing of the cervical spinal canal in the sagittal plane.
Analysis of Pulmonary Function between E-Cigarette Users and Non-Smokers Aged 20–30 Years in Jakarta Digambiro, Reza Aditya; Parwanto, Edy; Tjahjadi, David; Ditriana, Ditriana
Jurnal Respirologi Indonesia Vol 45 No 2 (2025)
Publisher : Perhimpunan Dokter Paru Indonesia (PDPI)/The Indonesian Society of Respirology (ISR)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36497/jri.v45i2.791

Abstract

Background: This study aimed to compare pulmonary function between e-cigarette users and non-smokers aged 20–30 years in Jakarta. Methods: A cross-sectional study was carried out between May 2023 and May 2024 at SMC Clinic Jakarta, Ibnusina Hospital Jakarta, and Naura Medika Clinic Depok. The sample consisted of 65 individuals who used e-cigarettes and 63 individuals who did not smoke. Spirometry was employed to evaluate pulmonary function by measuring forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), and the FEV1/FVC ratio. The data were analyzed using independent t-tests using IBM SPSS software version 25.0. Results: The study revealed substantial disparities in pulmonary function between individuals who use e-cigarettes and those who do not smoke. Individuals who use e-cigarettes had significantly reduced FEV1 at 3.02±0.50 L and FVC at 4.00±0.47 L, in comparison to non-smokers (FEV1=3.51±0.57 L; FVC=4.57±0.50 L). E-cigarette users exhibited a considerably lower FEV1/FVC ratio (74.86±5.55) compared to non-smokers (79.29±5.11), suggesting a higher occurrence of obstructive airway diseases. Conclusion: Young adults aged 20-30 years in Jakarta who use e-cigarettes experience a decrease in pulmonary function. The results emphasize the possible respiratory hazards associated with the use of e-cigarettes and emphasize the necessity for greater awareness and regulatory actions to tackle these hazards.
Co-Authors Ditriana, Ditriana MZ Onibala, MZ Parwanto, Edy Reza Aditya Digambiro