Öznur Yildiz

Background/Objectives: Cardiopulmonary exercise testing (CPET) provides an integrated assessment of cardiovascular, respiratory, and metabolic responses during exercise. Although CPET is increasingly used in older adults for preoperative physiological evaluation and assessment of exercise limitation, evidence regarding its safety and clinical feasibility in elderly patients with mixed cardiopulmonary comorbidities remains limited. Methods: In this retrospective observational study, we evaluated 235 consecutive patients who underwent CPET at a tertiary referral center. Patients were categorized into two groups according to age: ≥65 years and p = 0.02, OR (95% CI): 0.90 (0.84–0.96), p = 0.001, respectively]. Conclusions: CPET was feasible in the majority of elderly patients with cardiopulmonary comorbidities, with most individuals successfully completing testing and providing clinically interpretable physiological data. No major complications were observed in this cohort. These findings suggest that, when performed under appropriate supervision and careful patient selection, CPET may represent a practical tool for functional assessment and preoperative physiological evaluation in older adults. Larger prospective multicenter studies are warranted to further define its safety and feasibility in this population.

Temporal Trends in the Use of Pulmonary Function Tests Before, During, and After the COVID-19 Pandemic: Experience from a University Hospital in Türkiye - Thoracic Research and Practice

Health literacy encompasses patients' abilities to access healthcare, comprehend health information, and make decisions based on that knowledge. We aimed to examine the relationship between dyspnea levels, acute exacerbations, hospitalizations, disease severity and comorbidities of chronic obstructive pulmonary disease (COPD) patients according to their health literacy levels. A total of 106 COPD patients were prospectively enrolled in our study. Demographic data, history, pulmonary function tests, COPD severity, comorbidities, health status, quality of life and the factors determining the course of the disease in the last year were collected. We also measured patients' health literacy using the Turkish version of the European Health Literacy scale. Our findings revealed that elderly COPD patients (p= 0.04) with advanced disease stages (p< 0.001), higher Charlson Comorbidity Index and Saint George Hospital Respiratory Questionnaire scores (p< 0.001), and lowincome (p= 0.02) had lower levels of health literacy. Moreover, patients with lower health literacy experienced more frequent exacerbations (p= 0.01), more severe exacerbations (p< 0.001), and higher rates of hospitalization (p< 0.001). Logistic regression analysis unveiled that GOLD stages (OR: 11.62, 95% CI: 3.36-26.25), and recent severe exacerbations within the last year (OR: 14.24, 95% CI: 5.41-38.13) stood out as the most strongly associated risk factors for poor health literacy. COPD patients with low health literacy have a higher risk of severe disease. Recognizing the concept of health literacy and identifying risk factors associated with low health literacy are crucial steps in enhancing education, care, and social support for COPD patients. It emphasizes the need for tailored interventions and support for COPD patients, especially those with lower health literacy.

Nationwide Assessment of Pulmonary Function Testing Practices and Safety Compliance During the COVID-19 Pandemic - Thoracic Research and Practice

This study aimed to investigate whether coronavirus disease-2019 (COVID-19) leads to impaired pulmonary function, fibrotic-like abnormalities or psychological symptoms six months after discharge. This study involves 162 laboratory-confirmed patients with COVID-19 who were diagnosed in Ankara University Faculty of Medicine, Department of Chest Diseases from February 1, 2021 to July 1, 2023. All patients were diagnosed with COVID-19 pneumonia by thorax computed tomography (CT). Patients who applied to the outpatient clinic six months after COVID-19 treatment were included in the study. A total of 133 patients underwent thorax CT scan, pulmonary function tests, six minutes walking test simultaneously. Radiographic patterns were categorized into two groups (normal/non-fibrotic and fibrotic-like). Group A had 66 patients who either had no fibrotic or non-fibrotic changes, and 67 patients who had fibrotic-like changes were categorized as group B. Mean age of the study subjects was 55.95 ± 12.42 years, and 75 (56.4%) patients were male. Overall, median diffusing capacity of the lungs for carbon monoxide (DLCO) % predicted measured as 73.5% [IQR 61-88]. DLCO and six-minute walking distance were significantly lower in the fibroticlike pattern group (p< 0.001, p= 0.014, respectively). Reduced DLCO in patients with fibrotic-like pattern after six months was common. Presence of ground-glass opacities, reticulations and traction bronchiectasis correlated strongly with reduced diffusing capacity (r= -0.190 p= 0.043, r -0.305 p= 0.001, r -0.404 p< 0.001, respectively). We demonstrated that smoking history and intensive care unit (ICU) admisson during COVID-19 pneumonia were independent risk factors for fibrotic-like radiographic abnormalities. Residual abnormalities resembling fibrosis were notably prevalent, particularly among severely ill patients, and impaired lung diffusion persisted in some individuals even six months post-discharge. Post-COVID-19 lung sequelae can persist and progress after hospital discharge, suggesting airways involvement and formation of new fibrotic-like lesions, mainly in patients who had been in the ICU and had smoking history.

Patients with asthma-chronic obstructive pulmonary disease (COPD) overlap (ACO) have a greater disease burden than those with COPD or asthma alone. In this study, it was aimed to determine the prevalence, risk factors, and clinical features of ACO because there are limited national data in Türkiye. The study was conducted in a cross-sectional design in nine tertiary-care hospitals. The patients followed with a diagnosis of asthma or COPD for at least one year were enrolled in the study. The frequency of ACO and the characteristics of the patients were evaluated in the asthma and COPD groups. The study included 408 subjects (F/M= 205/203, mean age= 56.24 ± 11.85 years). The overall prevalence of ACO in both groups was 20.8% (n= 85). The frequency was higher in the COPD group than in the asthma group (n= 55; 33.3% vs. n= 22; 9.8%), respectively (p= 0.001). Patients with ACO had similarities to patients with COPD in terms of advanced age, sex, smoking, exposure to biomass during childhood, being born in rural areas, and radiologic features. Characteristics such as a history of childhood asthma and allergic rhinitis, presence of chronic sinusitis, NSAID hypersensitivity, atopy, and high eosinophil counts were similar to those of patients with asthma (p<0.001). The annual decline in FEV1 was more prominent in the ACO group (mean= -250 mL) than in the asthma (mean change= -60 mL) and COPD (mean change= -230 mL) groups (p= 0.003). This study showed that ACO was common among patients with asthma and COPD in tertiary care clinics in our country. ACO should be considered in patients with asthma and COPD who exhibit the abovementioned symptoms.

It is important to make the differential diagnosis of restrictive changes associated with hepatic hydrothorax or hepatopulmonary syndrome seen in the later stages of chronic liver diseases and restrictive changes associated with interstitial lung disease. Lymphocytic interstitial pneumonia (LIP) is in the rare idiopathic interstitial pneumonia subgroup of interstitial lung diseases. LIP is a rare disease, and its incidence is unknown. LIP is characterized by infiltration of the alveolar interstitium with lymphocytes, plasma cells, and histiocytes. The etiology of LIP includes idiopathic causes, rheumatological diseases, immune deficiencies, viral infections, and drug-related causes. Chronic liver diseases are also rarely included in the etiology of LIP. A 75-year-old male patient who was followed up for liver cirrhosis presented with dyspnea. He had hypoxemia in the arterial blood gas. In the thorax and abdominal computed tomography, irregular reticulations in bilateral lungs, ground-glass opacities, and scattered air cysts in both lung parenchyma, chronic liver parenchymal disease, splenomegaly, chronic portal vein thrombosis were determined. Clinical and radiological changes in the patient were evaluated in favor of interstitial lung disease. Although histopathological diagnosis could not be made, the patient whose radiological pattern was compatible with LIP was evaluated together with clinical findings and was accepted as lymphocytic interstitial pneumonia. He was evaluated in terms of diseases that could cause LIP. He was accepted as LIP due to chronic liver disease. Although histopathological examination is the gold standard for the diagnosis, a biopsy could not be performed in our case. Radiological and clinical findings were considered sufficient for the diagnosis of LIP. Chronic viral hepatitis and cirrhosis are also present in the etiology of LIP. Our case is presented as an example in the literature because it is a case of LIP due to chronic liver disease, and it is rare.

The goals of chronic obstructive pulmonary disease (COPD) treatment are to relieve dyspnea, increase exercise capacity, and improve quality of life. The relation of exercise capacity, dyspnea level, and quality of life with long-term mortality is unclear. Aim of the study was to assess the effect of exercise capacity, dyspnea level and quality of life on long-term mortality risk in patients with COPD. Dyspnea level was assessed using the modified Medical Research Council (mMRC), Borg and Baseline Dyspnea Index (BDI) and Body Obstruction Dyspnea Exercise (BODE), health-related quality of life with St. George's Respiratory Questionnaire, and exercise capacity with the 6-minute walking test (6MWT) and cardiopulmonary exercise test. At the end of 8-year follow-up period, the relation between these tests and mortality was examined. A total of 42 patients with stable COPD were included in the study. Sixteen patients died during the approximately 8-year follow-up period. Univariate analysis revealed that VO2 peak [HR: 1.845; CI: (1.336-2.55); p<0.001], BODE index [HR: 0.787; CI: (0.703-0.880); p<0.001], and SGRQ [HR: 1.073; CI: (1.028-1.119); p= 0.001] were significantly correlated to mortality risk. Multivariate Cox regression analysis revealed VO2 peak [HR: 1.031; CI: (0.683-1.120); p= 0.01] as the single significant predictor of mortality. VO2 peak less than 22.5 had a sensitivity of 82%, specificity of 80%, and area under the curve of 0.142 [95% CI: (0.027-0.257); p< 0.001] for mortality risk with ROC analysis. Cardiopulmonary disturbances during maximal exercise may be an important indicator of mortality risk.

Turkthoracj, Turkish Thoracic Journal