Diffuse alveolar hemorrhage following inhaled sevoflurane: A rare complication of inhalational anesthesia.

Sevoflurane is a commonly used inhalational anesthetic agent for inducing and maintaining general anesthesia. However, it has been associated with a rare but serious pulmonary condition known as diffuse alveolar hemorrhage (DAH). DAH is characterized by decreased hemoglobin levels, diffuse pulmonary infiltration, and respiratory failure with hypoxemia. We present a case of DAH in a healthy young adult who experienced this condition following general anesthesia with inhaled sevoflurane during an uncomplicated orthopedic procedure. Notably, there were no other risk factors or known causes that could account for the development of DAH in this patient.

DTPA clearance test: a sensitive method for detecting radiation-induced lung fibrosis in lung cancer patients.

OBJECTIVE: The aim of this study is to analyze the frequency of lung injury and the sensitivity of the diethylenetriamine penta-acetic acid (DTPA) clearance test in detecting lung injury in patients undergoing radiotherapy (RT) to the thorax. MATERIAL AND METHOD: Twenty individuals scheduled for RT for lung cancer were included as the patient group. The healthy control group consisted of 20 age and gender-matched individuals who were nonsmokers with no history of comorbidities. We conducted follow-up with patients at 0-1-6 months, performing carbon monoxide diffusion test (DLCO), DTPA clearance test (excluding the first month), and high-resolution computed tomography of the thorax. The control group was followed up with DLCO between the baseline and 6th months. RESULTS: Ninety percent of the patient group was male, and the median age was 62 years. Seventy percent of the patients had squamous cell carcinoma and adenocarcinoma. Pneumonitis was detected in the patient group in the first month (100%) and fibrosis in the sixth month (%100) Both at the beginning and in the sixth month, the DLCO values of patients who received RT were lower than those of the control group ( P  = 0.001 and P  < 0.001, respectively). While DTPA clearance was similar between irradiated and non-radiated lungs at the beginning, there was a substantial decrease in the irradiated lung in the sixth month( P  = 0.001). There was no significant correlation between malignancy type, RT dose, and tumor size( P  > 0.05). CONCLUSION: The DTPA clearance test could be an alternative method for demonstrating radiation injury in patients receiving RT.

Lung cancer from suspicion to treatment: An indicator of healthcare access in Turkey.

BACKGROUND: Lung cancer is the leading cause of cancer-related deaths worldwide. Before beginning lung cancer treatment, it is necessary to complete procedures such as suspecting lung cancer, obtaining a pathologic diagnosis, and staging. This study aimed to investigate the processes from suspicion of lung cancer to diagnosis, staging, and treatment initiation. METHODS: The study was designed as a multicenter and cross-sectional study. Patients with lung cancer from various health institutions located in all geographic regions of Turkey were included in the study. The sociodemographic and clinical characteristics of the patients, the characteristics of the health institutions and geographic regions, and other variables of the lung cancer process were recorded. The time from suspicion of lung cancer to pathologic diagnosis, radiologic staging, and treatment initiation, as well as influencing factors, were investigated. RESULTS: The study included 1410 patients from 29 different medical centers. The mean time from the initial suspicion of lung cancer to the pathologic diagnosis was 48.0 ± 52.6 days, 39.0 ± 52.7 days for radiologic staging, and 74.9 ± 65.5 days for treatment initiation. The residential areas with the most suspected lung cancer cases were highly developed socioeconomic zones. Primary healthcare services accounted for only 0.4% of patients with suspected lung cancer. The time to pathologic diagnosis was longer in the Marmara region, and the wait time for staging and treatment initiation was longer in Eastern and Southeastern Anatolia. Patients who presented to chest disease referral hospitals with peripheral lesions, those with early-stage disease, and those who were diagnosed surgically had significantly longer wait times. CONCLUSION: The time between pathologic diagnosis, staging, and treatment initiation in lung cancer was longer than expected. Increasing the role of primary healthcare services and distributing socioeconomic resources more equally will contribute to shortening the time to diagnosis and improve treatment processes for lung cancer.

The role of new inflammatory markers in determining disease activation and severity in patients with hidradenitis suppurativa.

Hidradenitis suppurativa (HS) is a chronic inflammatory disease. Recently published studies have suggested the use of markers of inflammation to monitor HS patients. These studies discuss the platelet/lymphocyte ratio (PLR), neutrophil/lymphocyte ratio (NLR), pan-immune-inflammation value (PIV), and systemic immune-inflammation index (SIII), which are also used in other inflammatory diseases. This study aimed to compare the blood parameters, including NLR, PLR, SIII, and PIV, in HS patients and healthy individuals, and determine their correlation with disease severity. The study included 81 HS patients and 61 healthy volunteers. The patients' medical records and laboratory values of the control group were reviewed retrospectively. HS severity was assessed using Hurley staging. NLR, PLR, SIII, and PIV values were calculated based on complete blood counts. NLR, SIII, and PIV values were significantly higher in HS patients compared to the healthy control group and were positively associated with disease severity. There was no significant difference observed in PLR values concerning disease severity. This study suggests that NLR, SIII, and PIV values can be utilized as simple and cost-effective tests to monitor disease activity and severity in HS patients. However, larger and more comprehensive studies are needed to establish diagnostic cutoff values, and further evaluation of sensitivity and specificity is required.

Are MUC5B and TERT mutations genetic risk factors for pulmonary fibrosis in individuals with severe COVID-19?

Introduction: The genetic risk factors for Coronavirus disease-2019 (COVID19)-associated pulmonary fibrosis (CAPF) are not clearly defined. Mutations in the genes encoding telomerase reverse transcriptase (TERT) and mucin 5B (MUC5B) are well-known genetic risk factors for pulmonary fibrosis. In this study, we aimed to show whether the most common proven mutations of pulmonary fibrosis affect the development of CAPF. Materials and Methods: Forty-eight patients who were matched for age, gender, COVID-19 disease severity, and respiratory support type and needed high flow nasal cannula, non-invasive mechanical ventilator, or invasive mechanical ventilator due to COVID-19 were followed up prospectively. Eighteen patients were excluded from the follow-up due to known structural lung disease, collagen tissue disease, and occupational exposure to fibrosis. The patients were called for follow-up three months after discharge, and CT was performed. Those with fibrosis (n= 15) in the third-month follow-up CT were included in the CAPF group, and those with complete resolution (n= 15) were included in the control group. Blood samples were taken for genetic analysis. Result: TERT gene study revealed that six (40%) of the fibrosis group was normal, while five were heterozygous (33.3%). MUC5B polymorphism was not detected in 10 (66.7%) of the fibrosis group. Conclusions: Individuals with TERT mutations may be at a higher risk for CAPF. Further studies are needed to clarify the genetic risk factors for CAPF.

The association of antiviral drugs with COVID-19 morbidity: The retrospective analysis of a nationwide COVID-19 cohort.

Background and objectives: Although several repurposed antiviral drugs have been used for the treatment of COVID-19, only a few such as remdesivir and molnupiravir have shown promising effects. The objectives of our study were to investigate the association of repurposed antiviral drugs with COVID-19 morbidity. Methods: Patients admitted to 26 different hospitals located in 16 different provinces between March 11-July 18, 2020, were enrolled. Case definition was based on WHO criteria. Patients were managed according to the guidelines by Scientific Board of Ministry of Health of Turkey. Primary outcomes were length of hospitalization, intensive care unit (ICU) requirement, and intubation. Results: We retrospectively evaluated 1,472 COVID-19 adult patients; 57.1% were men (mean age = 51.9 ± 17.7years). A total of 210 (14.3%) had severe pneumonia, 115 (7.8%) were admitted to ICUs, and 69 (4.7%) were intubated during hospitalization. The median (interquartile range) of duration of hospitalization, including ICU admission, was 7 (5-12) days. Favipiravir (n = 328), lopinavir/ritonavir (n = 55), and oseltamivir (n = 761) were administered as antiviral agents, and hydroxychloroquine (HCQ, n = 1,382) and azithromycin (n = 738) were used for their immunomodulatory activity. Lopinavir/ritonavir (ß [95% CI]: 4.71 [2.31-7.11]; p = 0.001), favipiravir (ß [95% CI]: 3.55 [2.56-4.55]; p = 0.001) and HCQ (ß [95% CI]: 0.84 [0.02-1.67]; p = 0.046) were associated with increased risk of lengthy hospital stays. Furthermore, favipiravir was associated with increased risks of ICU admission (OR [95% CI]: 3.02 [1.70-5.35]; p = 0.001) and invasive mechanical ventilation requirement (OR [95% CI]: 2.94 [1.28-6.75]; p = 0.011). Conclusion: Our findings demonstrated that antiviral drugs including lopinavir, ritonavir, and favipiravir were associated with negative clinical outcomes such as increased risks for lengthy hospital stay, ICU admission, and invasive mechanical ventilation requirement. Therefore, repurposing such agents without proven clinical evidence might not be the best approach for COVID-19 treatment.

A prospective observational evaluation of treatment outcomes of patients with chronic obstructive pulmonary disease and peripheral blood eosinophilia.

INTRODUCTION: This study aimed to compare two groups of patients with Chronic Obstructive Lung Disease (COPD) and blood eosinophil values of ≥300 cells/ µL. The patients were followed up for one year in two groups, one receiving inhaled corticosteroids (ICS) and the other not receiving ICS in terms of exacerbation rates, the incidence of pneumonia, mortality rates, FEV1, FVC and FEF25-75 changes, the COPD Assessment Test (CAT) and modified Medical Research Council (mMRC) dyspnea scores. MATERIALS AND METHODS: Stable patients, who presented to the University Medical Faculty Chest diseases outpatient clinic and diagnosed with COPD according to pulmonary function test results and GOLD stages 2-4 according to the 2017 GOLD criteria and with blood eosinophil counts of ≥ 300 cells/ µL were included in the study. RESULT: 85 patients were included in the study, of which 76.5% (n= 65) were males. There were no significant differences between the 38 patients receiving ICS and the 47 patients not receiving ICS regarding baseline FEV1, FVC, FEF25- 75 absolute values and percentages, and FEV1, FVC values controlled at month six and month 12, and FEF25-75 absolute values and percentages at month six (p> 0.05). However, the difference between the baseline and month 12 absolute values and percentages of FEF25-75 was statistically significant, and the decrease from baseline was greater in the group receiving ICS (p< 0.05). The difference in CAT and mMRC scores were statistically significant at month six and month nine in favor of the group receiving ICS (p< 0.05). The median number of moderate and severe exacerbations were both one (min: 0, max:3) in the group receiving ICS (n= 38) and in the one not receiving ICS (n= 47). The difference of exacerbation rates in both groups were not statistically significant (p> 0.05). CONCLUSIONS: In this study, it was determined that exacerbation rates of eosinophilic COPD patients did not differ depending on the use of ICS in a one-year period. Nevertheless, the 12-month FEF25-75 values of patients not using ICS were lower to a lesser extent, while the CAT and mMRC scores improved in favor of ICS users at different months in the one-year follow-up.

The predictors of COVID-19 mortality in a nationwide cohort of Turkish patients.

The COVID-19-related death rate varies between countries and is affected by various risk factors. This multicenter registry study was designed to evaluate the mortality rate and the related risk factors in Turkey. We retrospectively evaluated 1500 adults with COVID-19 from 26 centers who were hospitalized between March 11 and July 31, 2020. In the study group, 1041 and 459 cases were diagnosed as definite and highly probable cases, respectively. There were 993 PCR-positive cases (66.2%). Among all cases, 1144 (76.3%) were diagnosed with non-severe pneumonia, whereas 212 (14.1%) had severe pneumonia. Death occurred in 67 patients, corresponding to a mortality rate of 4.5% (95% CI:3.5-5.6). The univariate analysis demonstrated that various factors, including male sex, age ≥65 years and the presence of dyspnea or confusion, malignity, chronic obstructive lung disease, interstitial lung disease, immunosuppressive conditions, severe pneumonia, multiorgan dysfunction, and sepsis, were positively associated with mortality. Favipiravir, hydroxychloroquine and azithromycin were not associated with survival. Following multivariate analysis, male sex, severe pneumonia, multiorgan dysfunction, malignancy, sepsis and interstitial lung diseases were found to be independent risk factors for mortality. Among the biomarkers, procalcitonin levels on the 3rd-5th days of admission showed the strongest associations with mortality (OR: 6.18; 1.6-23.93). This study demonstrated that the mortality rate in hospitalized patients in the early phase of the COVID-19 pandemic was a serious threat and that those patients with male sex, severe pneumonia, multiorgan dysfunction, malignancy, sepsis and interstitial lung diseases were at increased risk of mortality; therefore, such patients should be closely monitored.

Frequency of peripheral blood eosinophilia and obstructive airway disease in sarcoidosis.

BACKGROUND: There is limited information about peripheral blood eosinophilia (PBE) and airway obstruction in sarcoidosis. Since pulmonary sarcoidosis affects the airways, it is often confused with asthma. The aims of the study are to investigate airway obstruction and PBE in sarcoidosis patients and to examine the similarity of clinical presentation with asthma. METHODS: The patients matching the ATS/ERS/WASOG diagnosis criteria and were between 18 and 80 years of age were included consecutively between 2018 and 2020. Other diseases causing granulomas were excluded. RESULTS: A total of 84 patients were included of which 26 (31%) had a PBE level of ≥300 µL with no significant difference seen between sarcoidosis stage and PBE (p > 0.05). A significant (p < 0.05) decrease was only seen in FEV1 as the stage of sarcoidosis progressed. Respectively 31 (36.9%), 12 (14.3%) and 4 (4.8%) patients had an obstructive, restrictive and mixed respiratory function disorder. Twenty-four (28.6%) subjects with sarcoidosis had history of asthma. Spring fever, eczema, and skin/nose allergy were noticed in 17 (20.2%) of the patients. DISCUSSION: Mild PBE may be seen in sarcoidosis. Patients applying with PBE, airway obstruction, bronchial hyperreactivity along with spring fever, eczema, skin/nose allergy, wheezing, chest tightness, shortness of breath and cough may be also evaluated in terms of sarcoidosis.

Coronavirus Disease 2019 (COVID-19) Accompanied by Maculopapular Rash: A Case Study.

A new type of coronavirus (coronavirus disease 2019; COVID-19), which emerged in the People's Republic of China, spread all over the world over time and became a pandemic. Dermatological symptoms seen during the course of the disease have gained importance over time. Studies have shown that many dermatological findings such as erythematous rash, urticaria, pseudo-chilblain, maculopapular, livedo/necrosis, and vesicular lesions may accompany the disease. In this study, a 24-year-old female patient with maculopapular lesions who had no previous history of allergy or dermatological disease and regressed without any dermatological treatment is presented.

Non-Infectious Diseases Compatible With COVID-19 Pneumonia.

While the definitive diagnosis of the coronavirus disease 19 (COVID-19) is mainly made by the polymerase chain reaction (PCR), some PCR-negative cases are diagnosed typically by a computed tomography (CT) scan's radiology. However, there are many different infectious and non-infectious diseases that have radiology like COVID-19. We are presenting a case of a patient having symptoms and a CT scan radiology comparable to that of COVID-19 and also having eosinophilia. The patient was initially diagnosed and treated as a COVID-19 patient. The patient stated that she had always complained of having dyspnea and cough, but it had increased even more in the past few days. Her thorax CT revealed bilateral ground-glass opacities with upper lobe predominance, which was reported as highly compatible with COVID-19 by radiologists. COVID-19 PCR result was negative twice. In laboratory results, eosinophil count was 2,850/mm3 and total Ig was 768 IU/mL. However, when the laboratory values and the radiological findings were combined with the patient's history, COVID-19 was excluded and the chronic eosinophilic pneumonia was accepted as a diagnosis. Clinicians more focused on COVID-19 while questioning the patients and while evaluating the laboratory and the radiological findings make it easier to miss other infectious and non-infectious diseases. Assessing the complete blood count result, focusing on the lymphocyte value, also makes it easy to skip eosinophilia.

Horse allergen sensitivity and respiratory symptoms among horse farm workers

Background/aim: Sensitivity and symptoms related to animal proteins have been investigated in various occupational groups. However, data from horse farm workers are limited. We aimed to determine horse allergen sensitivity in the horse farm workers, and to evaluate its relationship with respiratory symptoms and functional parameters. Materials and methods: A total of 110 subjects were enrolled in the study. The study group consisted of 80 horse farm workers. Face-to-face surveys, skin prick tests (SPT), and pulmonary function tests (PFT) were performed in the study group. Control group consisted of 30 healthy subjects. SPT and PFTs were also performed for control group. The SPT test results of the horse farm workers were compared with the SPT results provided from the medical records of 1376 subjects who admitted to the outpatient clinic with respiratory symptoms. Results: Atopy rate was significantly higher in horse farm workers than in healthy subjects (41% and 13%, respectively; P = 0.008). Horse allergen sensitivity was positive 8/80 (10%) in horse farm workers, 0/30 in healthy subjects, and 32/1376 (2%) in medical records of subjects who were admitted to the outpatient clinic with respiratory symptoms. (P = 0.07, P = 0.001, respectively). There was no statistically significant relationship between respiratory symptoms and horse allergen sensitivity in horse farm workers (P = 0.67). However, mean FEV1 ratios were lower in horse farm workers with horse allergen sensitivity than healthy subjects (88.6% ± 17.9, 103.7 ± 10, P = 0.031, respectively). Conclusion: Atopy and animal allergen sensitization were significantly higher in horse farm workers, suggesting the relationship between the intensity of specific allergen exposure and the sensitization to this specific allergen.

The presence of underlying asthma should be investigated in patients diagnosed with ACE inhibitor induced cough.

INTRODUCTION: Why do only some of patients who are prescribed angiotensin converting enzyme inhibitors (ACE-I) develop cough? The pathogenesis of ACE-I-induced cough remains controversial and requires further studies. OBJECTIVE: We aim to investigate whether asthma is a contributing cause of ACE-I-induced cough. METHODS: Patients attending a cardiology clinic between March 2016 and March 2017 who were diagnosed with ACE-I induced cough were included in this study. ACE-I-induced cough was defined as cough which developed within 4 weeks after initiation of ACE-I therapy and which improved within 4 weeks after discontinuation of the ACE-I. Patients who had received ACE-I treatment for at least 6 months without side effects were included in the study as a control group. Face-to-face questionnaires, pulmonary function tests (PFT) and skin prick tests were applied to all the patients. If there was discordance between asthma history and PFT results, a methacholine bronchial provocation test (BPT) was performed. RESULTS: A total of 43 patients with ACE-I induce cough were compared with 50 controls. Bronchial hyperreactivity (BHR), rhinitis, atopy and family history of asthma were more frequent in patients with ACE-I induced cough (P < .001). Patients with ACE-I-induced cough had significantly higher incidence of diagnosed asthma [OR = 8.28 (95%CI: 3.26-21.03) P < .001]. CONCLUSIONS: Asthma and an atopic background constitute a substantial risk factor for ACE-I induced cough. The presence of underlying asthma should be investigated in patients diagnosed with ACE inhibitor induced cough. However, the fact that most asthma patients tolerate ACE-I therapy, indicates that other cofactors are likely involved.