Siregar, Sihsusetyaningtyas Tiominar
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Differences in White Blood Cells, Neutrophil-to-Lymphocyte Ratio, Tumor Necrosis Factor-α based on Procalcitonin Level in Community-Acquired Pneumonia Patients Sutanto, Yusup Subagio; Apriningsih, Hendrastutik; Syaikhu, Akhmad; Siregar, Sihsusetyaningtyas Tiominar
Jurnal Respirologi Indonesia Vol 44, No 3 (2024)
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.v44i3.632

Abstract

Background: Community-acquired pneumonia (CAP) is a respiratory infectious disease caused by bacteria, viruses, or fungi. Procalcitonin (PCT) levels will rise, especially in bacterial infection. PCT examination in CAP can help to confirm the diagnosis and anticipate complications. CAP is diagnosed by symptoms, vital signs, laboratory tests, and radiographic investigations. Inflammatory biomarkers are required for predicting causative microorganisms, guiding antibiotic therapy, and determining severity. The purpose of this study is to compare NLR, WBC, and TNF-α levels in CAP patients dependent on PCT level.Methods: This was an analytical cross-sectional study involving 43 CAP patients admitted to Universitas Sebelas Maret (UNS) Hospital and Moewardi Regional General Hospital Surakarta between February and March 2023. Patients were separated into two groups based on PCT levels: those with levels ≤0.12 ng/mL and >0.12 ng/mL. All patients provided a blood sample for NLR, WBC, TNF-α, and PCT testing. The independent t-test and Mann-Whitney tests were performed for statistical analysis of two unpaired groups, and the Chi-square or Fisher exact test was utilized for ordinal categorical data. If the value of P<0.05, the result is statistically significant.Results: NLR and TNF-α levels were higher in the PCT group >0.12 ng/mL and statistically significant with a value of P=0.001. WBC levels in the PCT group >0.12 ng/mL were higher, but the difference was not statistically significant (P=0.096).Conclusion: The NLR value, WBC, and TNF-α levels were found to be higher in the group with PCT >0.12 ng/mL. 
Concordance Level between Impulse Oscillometry and Spirometry for Pulmonary Function Test Hapsari, Brigitta Devi Anindita; Melita , Melita; Siregar, Sihsusetyaningtyas Tiominar; Apriningsih, Hendrastutik; Adhiputri, Artrien
Jurnal Respirologi Indonesia Vol 45 No 4 (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.v45i4.920

Abstract

Background: The most widely used lung function test, spirometry, requires constant coaching and more effort. An alternative modality of impulse oscillometry (IOS) was introduced, which is simpler than spirometry, requiring only basic tidal breathing and less cooperation, but with less stringent standards. Methods: This research was a diagnostic test research with medical records data of patients who underwent spirometry and oscillometry procedures within the same period. The study was conducted in Sebelas Maret University General Hospital from March to September 2024. Results: A total of 77% of examinations gave the same results, namely restriction in 32 people (30.8%) and obstruction in 48 people (46.2%). Meanwhile, as many as 23% of IOS examinations gave different results compared to spirometry examinations (discordance). Six normal results from spirometry showed the impression of obstruction in IOS. The agreement between the IOS examination and spirometry was moderately significant (P=0.0001). Conclusion: Impulse oscillometry is a useful adjunct to spirometry, which is still the gold standard, especially for patients who are incapable of performing forced maneuvers.
Differences in White Blood Cells, Neutrophil-to-Lymphocyte Ratio, Tumor Necrosis Factor-α based on Procalcitonin Level in Community-Acquired Pneumonia Patients Sutanto, Yusup Subagio; Apriningsih, Hendrastutik; Syaikhu, Akhmad; Siregar, Sihsusetyaningtyas Tiominar
Jurnal Respirologi Indonesia Vol 44 No 3 (2024)
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.v44i3.632

Abstract

Background: Community-acquired pneumonia (CAP) is a respiratory infectious disease caused by bacteria, viruses, or fungi. Procalcitonin (PCT) levels will rise, especially in bacterial infection. PCT examination in CAP can help to confirm the diagnosis and anticipate complications. CAP is diagnosed by symptoms, vital signs, laboratory tests, and radiographic investigations. Inflammatory biomarkers are required for predicting causative microorganisms, guiding antibiotic therapy, and determining severity. The purpose of this study is to compare NLR, WBC, and TNF-α levels in CAP patients dependent on PCT level.Methods: This was an analytical cross-sectional study involving 43 CAP patients admitted to Universitas Sebelas Maret (UNS) Hospital and Moewardi Regional General Hospital Surakarta between February and March 2023. Patients were separated into two groups based on PCT levels: those with levels ≤0.12 ng/mL and >0.12 ng/mL. All patients provided a blood sample for NLR, WBC, TNF-α, and PCT testing. The independent t-test and Mann-Whitney tests were performed for statistical analysis of two unpaired groups, and the Chi-square or Fisher exact test was utilized for ordinal categorical data. If the value of P<0.05, the result is statistically significant.Results: NLR and TNF-α levels were higher in the PCT group >0.12 ng/mL and statistically significant with a value of P=0.001. WBC levels in the PCT group >0.12 ng/mL were higher, but the difference was not statistically significant (P=0.096).Conclusion: The NLR value, WBC, and TNF-α levels were found to be higher in the group with PCT >0.12 ng/mL. 
Comparative Analysis of Copeptin, IL-6, and TNF-α as Predictive Biomarkers for Clinical Outcome in Moderate to Severe COVID-19 Patients Harsini, Harsini; Aphridasari, Jatu; Siregar, Sihsusetyaningtyas Tiominar
Jurnal Respirologi Indonesia Vol 46 No 1 (2026)
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/mbaw4490

Abstract

Abstract Background: This retrospective clinical study aimed to evaluate the correlation of copeptin, IL-6, and TNF-α levels with the clinical outcomes of patients with moderate to severe COVID-19. Methods: The study included patients who met the selection criteria and provided written informed consent. A sample size of 41 was determined via power analysis to achieve 80% power at a 0.05 significance level. Consecutive sampling was employed to select participants. The study utilized medical records of patients with moderate to severe COVID-19 who underwent copeptin, IL-6, and TNF-α testing. Correlation analyses and Bonferroni corrections were performed using SPSS® ver. 21. Results: Results revealed a moderate positive correlation between copeptin levels and patient outcomes (Bonferroni correlation: 0.597; p < 0.001). A weak positive correlation was observed between IL-6 levels and outcomes (Bonferroni correlation: 0.239; p = 0.055), while a negligible positive correlation was found for TNF-α levels (Bonferroni correlation: 0.140; p = 0.177), which was not statistically significant. Conclusion: Copeptin emerged as a more sensitive biomarker for predicting the outcomes of COVID-19 patients compared to IL-6 and TNF-α. Elevated copeptin levels were associated with a poorer prognosis. Copeptin emerged as the strongest biomarker in this study, likely due to its role as a surrogate for vasopressin release, signaling a severe inflammatory response. Furthermore, its stability in serum renders copeptin a more sensitive biomarker than IL-6 and TNF-α.