PMID- 36082926 OWN - NLM STAT- MEDLINE DCOM- 20230419 LR - 20230419 IS - 1784-973X (Electronic) IS - 0001-5385 (Linking) VI - 78 IP - 2 DP - 2023 Apr TI - Association between DLCO index and the severity of heart failure: a cross-sectional study. PG - 250-255 LID - 10.1080/00015385.2022.2066776 [doi] AB - BACKGROUND: The prognostic role of diffusing capacity of the lung for carbon monoxide (DLCO) in heart failure has not been thoroughly investigated. Therefore, this study aimed to evaluate DLCO variation in different systolic and diastolic heart failure stages. METHODS: This was a prospective cross-sectional study on 51 patients with systolic (reduced LVEF) or diastolic (preserved LVEF) chronic heart failure (CHF). All patients underwent a standard DLCO test. The associations between the severity of heart failure and reduced carbon monoxide transfer factor (TLCO), carbon monoxide transfer coefficient (KCO), and alveolar volume (VA) were investigated. Data were analysed using SPSS software version 16. p-Values below 0.05 were considered statistically significant. RESULTS: The mean age of participants was 59.29 +/- 14.91 years, with 72% of the study population being male. Systolic heart failure was observed in 47% of patients, diastolic heart failure in 18%, and a mixed systolic and diastolic pattern in 35%. There were significant differences between TLCO percentage in patients with CHF types and the New York Heart Association (NYHA) functional classes (p = 0.042). Overall, an ejection fraction (EF) of less than 25% correlated with 3%, 53%, and 0.78 declines in TLCO, KCO%, and KCO index, respectively. CONCLUSION: Despite the lack of statistically significant differences between DLCO indices and CHF severity, decreased DLCO parameters correlated with reduced EF. Therefore, DLCO testing might be helpful to predict HF severity. FAU - Izadi, Shirin AU - Izadi S AD - Assistant Professor of Pulmonary Disease, Department of Internal Medicine, School of Medicine, Firoozgar General Hospital, Iran University of Medical Sciences. FAU - Esmaili, Saeedeh AU - Esmaili S AD - Residence of Internal Medicine, Firoozgar Medical & Educational Hospital, Department of Internal Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. FAU - Emami, Sepideh AU - Emami S AD - Assistant Professor of cardiology, Department of cardiology, School of Medicine, Firoozgar General Hospital, Iran University of Medical Sciences. FAU - Izadi, Shahrokh AU - Izadi S AD - School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran. FAU - Eskandari, Mohana AU - Eskandari M AD - Residence of Internal Medicine, Firoozgar Medical & Educational Hospital, Department of Internal Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran. FAU - Yadollahzadeh, Mahdi AU - Yadollahzadeh M AUID- ORCID: 0000-0001-5304-6705 AD - Assistant Professor of Pulmonary Disease, Department of Internal Medicine, School of Medicine, Firoozgar General Hospital, Iran University of Medical Sciences. FAU - Saleh, Maasoumeh AU - Saleh M AD - Department of Obstetrics and Gynecology, Tehran University of Medical Sciences, Shariati hospital, Tehran, Iran. FAU - Khavandegar, Armin AU - Khavandegar A AUID- ORCID: 0000-0002-4761-8938 AD - Student Research Committee, Alborz University of Medical Sciences, Karaj, Iran. FAU - Bakhtiyari, Mahmood AU - Bakhtiyari M AUID- ORCID: 0000-0002-1216-7671 AD - Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran. LA - eng PT - Journal Article DEP - 20220909 PL - England TA - Acta Cardiol JT - Acta cardiologica JID - 0370570 RN - 7U1EE4V452 (Carbon Monoxide) SB - IM MH - Humans MH - Male MH - Adult MH - Middle Aged MH - Aged MH - Female MH - Cross-Sectional Studies MH - *Pulmonary Diffusing Capacity MH - Carbon Monoxide MH - Prospective Studies MH - *Heart Failure/diagnosis OTO - NOTNLM OT - Heart failure OT - diastolic CHF OT - diffusing capacity of the lung for carbon monoxide OT - systolic CHF EDAT- 2022/09/10 06:00 MHDA- 2023/04/19 06:41 CRDT- 2022/09/09 07:33 PHST- 2023/04/19 06:41 [medline] PHST- 2022/09/10 06:00 [pubmed] PHST- 2022/09/09 07:33 [entrez] AID - 10.1080/00015385.2022.2066776 [doi] PST - ppublish SO - Acta Cardiol. 2023 Apr;78(2):250-255. doi: 10.1080/00015385.2022.2066776. Epub 2022 Sep 9.