ABSTRACT
Objective:To analyze the clinical characteristics and treatment of patients with serious interstitial lung diseases (SILD).Methods:The clinical data of 43 patients with SILD hospitalized in the respiratory intensive care unit of the Characteristic Medical Center of The Chinese People's Armed Police Force from January 2010 to December 2020 were retrospectively reviewed. According to the prognosis, the patients were divided into the death group and non-death group.Results:The included 43 patients include 31 cases of acute exacerbation of idiopathic interstitial pneumonia (AE-IIP), 18 cases of usual interstitial pneumonia (UIP) and 16 cases of nonspecific interstitial pneumonia (NSIP), in which 40% were aggravated due to co-infection and 33 patients were dead. The results showed that there was no significant difference between death and non-death patients in age, gender, smoking, hospitalization time, duration, clinical symptoms and signs, blood T lymphocyte subsets, co-infection, mechanical ventilation and glucocorticoid dose (all P>0.05), and there were significant differences in arterial partial pressure of oxygen to the fraction of inspired oxygen (PaO 2/FiO 2) and arterial partial pressure of carbon dioxide (PaCO 2) (all P<0.05). The PaO 2/FiO 2 level in the dead patients was lower, who often accompanied by type Ⅱ respiratory failure. Conclusions:AE-IIP was more common in patients with SILD, and most of their chest images were consistent with UIP and NSIP. Pulmonary infection is a common cause of acute exacerbation of SILD, and type II respiratory failure in the progress of the disease is a sign of poor prognosis.
ABSTRACT
Objective To compare the strengths and limitations of the old and revised guidelines for the diagnosis in patients with idiopathic pulmonary fibrosis(IPF).Methods Patients who were admitted and diagnosed as interstitial lung diseases (ILDs) in our hospital from 2009 to 2014 were enrolled in our study.Eachpatient was reevaluated respectively according to the old and revised guidelines of IPF.Results A total of 553 cases were initially reviewed,among whom 355 cases were excluded for pulmonary fibrosis secondary to definite underlying diseases,28 excluded due to high resolution computed tomography(HRCT) not done,26 excluded because serum immunology examination was not available.The remaining 144 cases were finally enrolled in this study including 92 males and 52 females with median age 21-92 (68 ± 11) years old.Twenty five patients (17.4％,25/144) met the diagnostic criteria of IPF by the old guideline.While by the revised guideline,53 patients (36.8％,53/144) were diagnosed as classical IPF,29 patients (20.1％,29/144) as probable cases,another 69 non-IPF patients accounting for 43.1％ (62/144).The result revealed that there's a significant difference between the two guidelines in the diagnosis of IPF.Conclusions The revised guideline favors an early diagnosis of IPF and simplifies the diagnostic process.However the possibility of over diagnosis or missed diagnosis by the revised guideline does exist.On the other hand,despite of the delayed diagnosis by the old guideline,it may reduce the misdiagnosis of IPF in some circumstance.