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1.
Turk Thorac J ; 21(5): 334-339, 2020 Sep.
Article in English | MEDLINE | ID: mdl-33031725

ABSTRACT

OBJECTIVES: Coincidance of idiopathic pulmonary fibrosis (IPF) and the obstructive sleep apnea syndrome (OSA) may have important effects on the pathogenesis of each other. Our aim is to define clinical characteristics of patients with IPF and OSA and to identify a combined index to determine the severity of both diseases together. MATERIALS AND METHODS: The clinical and polysomnographic characteristics of 22 patients with OSA and IPF who underwent nocturnal polysomnography (NPSG) were retrospectively evaluated and compared with 23 OSA patients without any other pulmonary comorbidities. RESULTS: We demonstrated high frequency of OSA within our study group (94,7%) all of whom had at least one of the majör symptoms of OSA. Lower AHI, lower neck circumference, higher percentage of deep sleep (nREM3) and less comorbidities were observed in the study group when compared to OSA with no other pulmonary comorbidities (p<0,05). When restaged into a compound index according to the gender, age and physiology (GAP) index, the patients with mild IPF and OSA showed the same life and sleep quality with the patients who have higher GAP index. CONCLUSION: All patients with IPF must be questioned for the major symptoms of sleep related breathing disorders (SRBD). Clinical suspicion for OSA must prompt NPSG. With the presence of moderate-severe OSA, the life and sleep quality of patients with mild IPF can be at the same level of patients with severe IPF.

2.
Turk Thorac J ; 21(4): 255-260, 2020 Jul.
Article in English | MEDLINE | ID: mdl-32687786

ABSTRACT

OBJECTIVES: Lung cancer is one of the most common causes of mortality all around the world. The increased production of reactive oxygen species occurs with cell damage, and cysteine is an important factor in preventing oxidative damage by its functional thiol group. The objective of this study was to evaluate the relationship between thiol/disulfide homeostasis (TDH) and the risk factors, disease severity, and physical condition of patients with lung cancer. MATERIALS AND METHODS: This is a prospective, controlled, nonblinded study, which included healthy volunteers and patients diagnosed with lung cancer who had not yet started any treatment. RESULTS: There were 45 male (90%) and five female (5%) patients (mean age 64±9 years), and 41 male (82%) and nine female (18%) healthy volunteers (mean age 65±17 years) were included in this research. Overall, the thiol levels were lower in patients than the control group (p<0.001). The native thiol level means were 275±72 µmol/l in the patient group and 414±80 µmol/l in the control group, and the total thiol level means were 309±74 and 451±79 µmol/l, respectively. However, the disulfide parameter was not statistically significantly different between the two groups. There were no correlations between the tumor size and overall survival and the total thiol, native thiol, and disulfide levels. CONCLUSION: This study showed that there is a significant relationship between lung cancer and TDH, but there were no correlations with the disease stage and the clinical performance status.

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