Decline In Pulmonary Function Research Articles

Anaesthesia management of a patient with Bethlem Myopathy for elective tonsillectomy: a case report

BackgroundBethlem Myopathy is a collagen VI-related myopathy presenting as a rare hereditary muscular disorder with progressive muscular weakness and joint contractures. Despite its milder clinical course relative to other myopathies, anaesthetic management can be challenging. High arched palates and fixed flexion deformities may contribute to a difficult airway. A progressive decline in pulmonary function can present later into adulthood. This respiratory decline can carry secondary cardiovascular consequences due to the progressive nature of restrictive lung disease, including right sided heart disease and pulmonary hypertension. We describe a case of a male patient with Bethlem Myopathy undergoing anaesthesia, to contribute to the limited body of literature on this condition and enhance awareness and guidance amongst anaesthesiologists on approaching patients with this condition. This is the first case report within the literature of its kind.Case presentationThis case details a 33-year-old male with Bethlem Myopathy undergoing tonsillectomy. Diagnosed in childhood following developmental delays, the patient had no prior anaesthetic exposure and no family history of anaesthetic complications. Anaesthetic induction was achieved without complications, avoiding depolarizing muscle relaxants and careful airway management. Extreme care was taken in patient positioning to prevent complications. The surgery proceeded without incident and muscle paralysis was reversed with Suggammadex, resulting in no adverse post-operative respiratory complications. The patient was discharged on the first post-operative day without any respiratory or cardiovascular compromise.ConclusionsBethlem Myopathy, while often exhibiting a mild clinical course, can present anaesthetic challenges. Awareness of potential complications including a difficult airway, cardiovascular and respiratory implications as well as the need for specialised monitoring and positioning is crucial to ensure a safe peri-operative course.

Endoscopic reflux esophagitis and decline in pulmonary function in nonsmokers: A retrospective cohort study

BackgroundThe association between reflux esophagitis and pulmonary function remains controversial. Thus, evaluating the relationship between endoscopic reflux esophagitis and changes in pulmonary function over time in a nonsmoking population is an important clinical issue. MethodsIn this single-center retrospective cohort study, a medical examination database at Kameda Medical Center Makuhari was employed to identify nonsmokers who underwent upper gastrointestinal endoscopy and spirometry in 2010 and were followed up in 2015. Gastroenterologists carefully double-checked the diagnosis of reflux esophagitis. Multiple linear regression analyses were performed to compare the decline in the percentage of predicted vital capacity (%VC), forced vital capacity (%FVC), and forced expiratory volume in 1 s (%FEV1) between participants with reflux esophagitis and those without. Furthermore, using multivariable logistic regression analyses, we evaluated the factors associated with rapid decline in %VC, %FVC, and %FEV1, which is defined as a decrease of >10% in each parameter over the 5-year observation period. ResultsWe identified 3098 eligible subjects, including 72 and 44 participants who had a Los Angeles classification grade A and B–C (severe) reflux esophagitis in 2010, respectively. The decline in %VC was significantly larger in the participants with severe reflux esophagitis than in the control subjects (standardized coefficient, −0.037; 95% confidence interval, −0.071 to −0.004). Moreover, reflux esophagitis was significantly associated with a rapid decline in %VC and %FVC but not in %FEV1 (P for trend: 0.009, 0.009, and 0.276, respectively). ConclusionsSevere reflux esophagitis among nonsmokers had clinical disadvantages in terms of a decline in %VC.

Association of clinical and imaging characteristics with pulmonary function testing in patients with Long-COVID

PurposeThe purpose of this study is to identify clinical and imaging characteristics associated with post-COVID pulmonary function decline. MethodsThis study included 22 patients recovering from COVID-19 who underwent serial spirometry pulmonary function testing (PFT) before and after diagnosis. Patients were divided into two cohorts by difference between baseline and post-COVID follow-up PFT: Decline group (>10 % decrease in FEV1), and Stable group (≤10 % decrease or improvement in FEV1). Demographic, clinical, and laboratory data were collected, as well as PFT and chest computed tomography (CT) at the time of COVID diagnosis and follow-up. CTs were semi-quantitatively scored on a five-point severity scale for disease extent in each lobe by two radiologists. Mann-Whitney U-tests, T-tests, and Chi-Squared tests were used for comparison. P-values <0.05 were considered statistically significant. ResultsThe Decline group had a higher proportion of neutrophils (79.47 ± 4.83 % vs. 65.45 ± 10.22 %; p = 0.003), a higher absolute neutrophil count (5.73 ± 2.68 × 109/L vs. 3.43 ± 1.74 × 109/L; p = 0.031), and a lower proportion of lymphocytes (9.90 ± 4.20 % vs. 21.21 ± 10.97 %; p = 0.018) compared to the Stable group. The Decline group also had significantly higher involvement of ground-glass opacities (GGO) on follow-up chest CT [8.50 (4.50, 14.50) vs. 3.0 (1.50, 9.50); p = 0.032] and significantly higher extent of reticulations on chest CT at time of COVID diagnosis [6.50 (4.00, 9.00) vs. 2.00 (0.00, 6.00); p = 0.039] and follow-up [5.00 (3.00, 13.00) vs. 2.00 (0.00, 5.00); p = 0.041]. ICU admission was higher in the Decline group than in the Stable group (71.4 % vs. 13.3 %; p = 0.014). ConclusionsThis study provides novel insight into factors influencing post-COVID lung function, irrespective of pre-existing pulmonary conditions. Our findings underscore the significance of neutrophil counts, reduced lymphocyte counts, pulmonary reticulation on chest CT at diagnosis, and extent of GGOs on follow-up chest CT as potential indicators of decreased post-COVID lung function. This knowledge may guide prediction and further understanding of long-term sequelae of COVID-19 infection.

E038 Predictors for pulmonary function decline in interstitial lung disease

Abstract Background/Aims Interstitial lung disease (ILD) is commonly associated with a decline in forced vital capacity (FVC). The most substantial loss of lung function typically occurs early in the course of the disease. The natural history of ILD varies among individuals. Several studies have employed FVC decline as the primary endpoint and NICE has recently approved antifibrotics based on this as an endpoint. An FVC reduction exceeding 10% has consistently been shown to correlate with poorer survival, leading to evidence-based guidelines recommending, an absolute decrease in FVC of 10% can be used as a surrogate marker of mortality. Aim: To obtain insights into the decline in lung function in patients with ILD, by comparing FVC measurements at baseline and 52 weeks. We hypothesised that the rate of absolute decline is increased with higher age, active smoking, sex, duration of ILD and comorbidities. Methods This was a retrospective study conducted at Southend University Hospital, involving a single-centre cohort of ILD patients identified from the ILD multidisciplinary team from 2016-June 2023. Data collection included parameters such as age at ILD onset, gender, occupation, smoking history, serial pulmonary function tests, imaging, comorbidities, survival outcomes, causes of death, and treatment regimens. Results Data from 197 patients were included in this study. Mean age of the cohort at diagnosis was 74. Men 112 (57%) and females 85 (43%). Among the study population 128 had a history of ex or current smoking. Mean duration of ILD was 40 months, ranging from 2 to 168 months. Of the participants 115 were deceased &amp; 83 remained alive. We included most common conditions in the analysis: idiopathic pulmonary fibrosis (IPF) = 65, RA = 22, idiopathic pulmonary fibrosis with autoimmune features (IPAF) =15, hypersensitivity pneumonitis (HP) = 20, unclassified=25, SSc-ILD = 13, Sjogren’s = 2, myositis = 1, vasculitis = 3 and sarcoidosis = 7. For analysis, we included RA, SSc, Sjogren’s, vasculitis, ankylosing spondylitis, myositis, and sarcoidosis in the CTD -ILD group. 23 were excluded from analysis (COOP, OP, CPFE, PPFE and drug induced pneumonitis). We categorised disease progression as severe, if FVC decline exceeded 10%. This was achieved as follows; 3/36 in CTD -ILD, 2/10 in IPAF, 6/16 in HP, 5/19 unclassified in ILD and 14/47 in IPF (χ²=7.5, p = 0.109). Moderate disease progression was defined as an FVC decline between 5- 10%. It was achieved in 6/36 in CTD -ILD, 3/16 in HP, 1/19 in unclassified and 5/47 in IPF (χ²=3.8, p = 0.439).In univariate analysis, none of the predictors achieved significance for severe or moderate progression among subgroups. In multivariate analysis, only the disease subgroup achieved significance in predicting significant lung function decline progression. Conclusion The rate of decline in lung function during follow-up differed across the subgroups based on clinical factors and demographics. This data supports the unpredictable nature of ILD. Disclosure G.M. Koduri: Corporate appointments; NONE. Consultancies; NONE. Shareholder/stock ownership; NONE. Royalties; NONE. Honoraria; NONE. Member of speakers’ bureau; NONE. Grants/research support; NONE. Other; NONE.

The airway microbiome of persons with cystic fibrosis correlates with acquisition and microbiological outcomes of incident Stenotrophomonas maltophilia infection.

Chronic infection with Stenotrophomonas maltophilia in persons with cystic fibrosis (pwCF) has been linked to an increased risk of pulmonary exacerbations and lung function decline. We sought to establish whether baseline sputum microbiome associates with risk of S. maltophilia incident infection and persistence in pwCF. pwCF experiencing incident S. maltophilia infections attending the Calgary Adult CF Clinic from 2010-2018 were compared with S. maltophilia-negative sex, age (+/-2 years), and birth-cohort-matched controls. Infection outcomes were classified as persistent (when the pathogen was recovered in ≥50% of cultures in the subsequent year) or transient. We assessed microbial communities from prospectively biobanked sputum using V3-V4 16S ribosomal RNA (rRNA) gene sequencing, in the year preceding (Pre) (n = 57), at (At) (n = 22), and after (Post) (n = 31) incident infection. We verified relative abundance data using S. maltophilia-specific qPCR and 16S rRNA-targeted qPCR to assess bioburden. Strains were typed using pulse-field gel electrophoresis. Twenty-five pwCF with incident S. maltophilia (56% female, median 29 years, median FEV1 61%) with 33 total episodes were compared with 56 uninfected pwCF controls. Demographics and clinical characteristics were similar between cohorts. Among those with incident S. maltophilia infection, sputum communities did not cluster based on infection timeline (Pre, At, Post). Communities differed between the infection cohort and controls (n = 56) based on Shannon Diversity Index (SDI, p = 0.04) and clustered based on Aitchison distance (PERMANOVA, p = 0.01) prior to infection. At the time of incident S. maltophilia isolation, communities did not differ in SDI but clustered based on Aitchison distance (PERMANOVA, p = 0.03) in those that ultimately developed persistent infection versus those that were transient. S. maltophilia abundance within sputum was increased in samples from patients (Pre) relative to controls, measuring both relative (p = 0.004) and absolute (p = 0.001). Furthermore, S. maltophilia abundance was increased in sputum at incident infection in those who ultimately developed persistent infection relative to those with transient infection, measured relatively (p = 0.04) or absolute (p = 0.04), respectively. Microbial community composition of CF sputum associates with S. maltophilia infection acquisition as well as infection outcome. Our study suggests sputum microbiome may serve as a surrogate for identifying infection risk and persistence risk.

Association between neck circumference and pulmonary function in Korean adults.

Neck circumference (NC) is associated with various diseases. However, its association with pulmonary diseases remains unclear. This study aimed to investigate the association between NC and pulmonary function in Korean adults. Data from the 2019 Korean National Health and Nutrition Examination Survey were used, including forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC). A total of 3818 adults aged 40 to 79 years were included in the analysis. Multivariable logistic regression models were used to examine factors associated with low pulmonary function (<80% of the predicted value) and calculate odds ratios (ORs) and 95% confidence intervals (CIs) for decreased lung function per 1-cm increase in NC. A negative correlation was observed between the NC and pulmonary function in both sexes. In multivariate logistic regression analyses, in contrast to men, women exhibited a notable relationship between increased NC and impaired pulmonary function, with a more pronounced effect observed in FVC (OR, 1.14; 95% CI, 1.05-1.24). Central obesity may play a role in pulmonary function decline. Understanding this relationship can inform preventive strategies and interventions to improve the respiratory health of individuals with central obesity.

Exploring the adverse effect of fine particulate matter (PM2.5) on wildland firefighters’ pulmonary function and DNA damage

Chiang Mai encounters severe pollution during the wildfire season. Wildland firefighters encounter various hazards while engaged in fire suppression operations, which encompass significant exposure to elevated concentrations of air pollutants resulting from combustion, especially particulate matter. The adverse effects of wildfire smoke on respiratory health are a significant concern. The objective of this study was to examine the potential adverse effects of PM2.5 exposure on the respiratory function and DNA damage of wildland firefighters. This prospective cohort study conducted in Chiang Mai from January to May 2022 planned to evaluate the health status of wildland firefighters during the pre-peak, peak, and post-peak ambient air pollution seasons. The measurement of PM2.5 was done at every forest fire station, as well as utilizing data from the Pollution Control Department. Participants received general health examinations, spirometry evaluations, and blood tests for DNA damage analysis. Pair t-tests and multiple regression models were used to examine the connection between pulmonary function parameters (FVC, FEV1) and PM2.5 concentration, with a significance level of P < 0.05. Thirty-three peak-season and twenty-one post-peak-season participants were enrolled. Four pre-peak-season wildland firefighters had FVC and FEV1 declines of > 15%. Multiple regression analysis showed a negative association between PM2.5 exposure and FVC% predicted (− 2.81%, 95% CI − 5.27 to − 0.34%, P = 0.027) and a marginally significant negative correlation with FVC (− 114.38 ml, 95% CI − 230.36 to 1.59 ml, P = 0.053). The remaining pulmonary measures showed a statistically insignificant decline. There were no significant changes in DNA damage detected. Wildland firefighters suffered a significant decline in pulmonary function associated with PM2.5 exposure. Spirometry is crucial for monitoring and promptly identifying respiratory issues that occur during wildfire seasons. Further research is recommended to explore DNA damage alterations and their potential association with PM2.5.

(74) - Ruxolitinib Prevents Pulmonary Function Decline Due to CLAD-BOS in an Adolescent Lung Transplant Recipient

(74) - Ruxolitinib Prevents Pulmonary Function Decline Due to CLAD-BOS in an Adolescent Lung Transplant Recipient

Efficacy of methylprednisolone in very early systemic sclerosis: results of the "Hit hard and early'' randomized controlled trial.

We hypothesized that glucocorticoids would induce remission in very early Systemic Sclerosis patients by inhibition of inflammation driving the disease. We examined the efficacy and safety of methylprednisolone in very early Systemic Sclerosis. In this trial adults with puffy fingers for less than three years, specific auto-antibodies and meeting the Very Early Diagnosis of Systemic Sclerosis criteria were randomly assigned (2:1) to methylprednisolone 1000 mg intravenously or placebo for 3 consecutive days 3 times with monthly intervals. The primary end point was nailfold capillary density at week 12. Capillary density at 52 weeks, number of megacapillaries, and patient-reported outcomes were secondary outcomes. In addition, we assessed disease progression and lung function decline over 52 weeks. We used linear regression analyses adjusted for baseline values and stratification variables to estimate differences between groups. Between February 2017 and February 2021, 87 patients were screened, of whom 30 (70% female, median (IQR) age 52·9 (40·8-60·8) years, median (IQR) disease duration 11.4 (4.6-18.6) months) were randomly assigned to methylprednisolone (n = 21) or placebo (n = 9). We found no difference in nailfold capillary density at 12 weeks: -0.5 (95% CI 1.1, 0.2) nor in any of the secondary outcomes. Eleven (37%) patients showed disease progression during 1 year follow up, 7 (23%) patients had a relevant pulmonary function decline. No serious adverse events were reported. No clinically relevant effect of short-term methylprednisolone in patients with very early Systemic Sclerosis was observed. A substantial proportion of patients showed disease progression.

Hydrocortisone-loaded Lipid-Polymer Hybrid Nanoparticles for Macrophage Targeted Delivery in Chronic Obstructive Pulmonary Disease

The multifaceted illness known as a chronic obstructive pulmonary disease (COPD) is characterized by a decline in post-bronchodilator pulmonary function in all individuals and is linked to local and systemic inflammation, attracting alveolar macrophages (AM). The objective of this study was to use carubinose-linked hydrocortisone-hybrid nanoparticles (HC-HNPs) to increase the glycotargeting effectiveness to AM. The emulsification solvent evaporation method was used to generate the HC-HCNPs, and various analytical techniques were used to characterize them, including %entrapment efficiency, analytical characterization and histopathology examinations. Results revealed that HC is entrapped inside the hybrid preparations, which contain specific signatures of molecules that interact with ligands and are expressed all through the cell surface, as well as the amorphous nature of HC-HNPs. Field emission scanning electron microscopy (FESEM) revealed the surface structure and the particle size diameter which is enough to reach the AM through the nasal route. The high-performance liquid chromatography (HPLC) showed no interference from excipients in determining HC, indicating that the method is specific. The in-vivo findings showed that HC-HNPs demonstrated proof that very small and cost-effective nanoparticles can be developed to effectively target AM by effectively delivering HC-HNPs to the lungs.

Pulmonary symptoms associated with heavy alcohol consumption among people living with HIV: an analysis of the NHANES 1999-2010.

This matched case-control study aimed to provide epidemiologic evidence of increased burden of respiratory symptoms and pulmonary function decline among people living with human immunodeficiency virus (HIV) and a history of heavy alcohol consumption. Cases were participants with HIV (PWH; n = 75, 33%), and controls were participants without HIV (PWoH; n = 150, 67%). PWH were matched to PWoH by age and sex in the ratio of 1:2. Eligible participants responded to the respiratory health National Health and Nutrition Examination Survey questionnaire [prolonged coughs (≥3months), bringing up of phlegm (≥3months), and a history of wheezing or whistling in the chest (past year)]. The effects of both alcohol and HIV on participants' pulmonary function were determined using linear regression analysis. History of heavy alcohol consumption was more prevalent among PWH (40%) compared to PWoH (27%). PWH who had a history of heavy alcohol consumption had a higher prevalence of coughing most days (45% vs. 4%, P = .0010), bringing up phlegm most days (31% vs. 0%, P = .0012), and wheezing or whistling in the chest (40% vs. 20%, P = .058) compared to participants who did not heavily consume alcohol. Furthermore, a history of heavy alcohol consumption was associated with decreased forced expiratory volume (ml) in 1s/forced vital capacity among PWH (β = - 0.098 95% C.I. -0.16, -0.04, P = .03) after adjusting for having smoked at least 100 cigarettes in life. A history of heavy alcohol use increased respiratory symptoms and suppressed pulmonary function among people living with HIV. This study provides epidemiological evidence of the respiratory symptom burden of people living with HIV who have a history of heavy alcohol consumption.

Arsenic exposure and pulmonary function decline: Potential mediating role of TRAIL in chronic obstructive pulmonary disease patients

BackgroundEnvironmental arsenic (As) exposure is strongly related to the progression of chronic obstructive pulmonary disease (COPD). Pulmonary epithelial cells apoptosis is implicated in the pathophysiological mechanisms of COPD. However, the role of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), one biomarker of apoptosis, remains unclear in As-mediated pulmonary function alternations in COPD patients. MethodsThis study included 239 COPD patients. The serum level of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) was measured by enzyme-linked immunosorbent assay (ELISA). The blood As level was determined through inductively coupled plasma mass spectrometry (ICP-MS). ResultsBlood As levels exhibited a negative and dose-dependent correlation with pulmonary function. Per unit elevation of blood arsenic concentrations was related to reductions of 0.339 L in FEV1, 0.311 L in FVC, 1.171% in FEV1/FVC%, and 7.999% in FEV1% in COPD subjects. Additionally, a positive dose-response correlation of blood As with serum TRAIL was found in COPD subjects. Additionally, the level of serum TRAIL was negatively linked to lung function. Elevated TRAIL significantly mediated As-induced decreases of 11.05%, 13.35%, and 31.78% in FVC, FEV1, and FEV1%, respectively among the COPD patients. ConclusionBlood As level is positively correlated with pulmonary function decline and serum TRAIL increase in individuals with COPD. Our findings suggest that elevated TRAIL levels may serve as a mediating mechanism through which As contributes to declining lung function in COPD patients.

Early glucose abnormalities revealed by continuous glucose monitoring associate with lung function decline in cystic fibrosis: A five-year prospective study

BackgroundCystic fibrosis related diabetes (CFRD) is commonly associated with declining lung function and nutritional status. We aimed to evaluate the pulmonary impact of early glucose abnormalities by using 2-h standard oral glucose tolerance testing (OGTT) and continuous glucose monitoring (CGM) in people with cystic fibrosis (PwCF). MethodsPwCF aged ≥10 years old without known CFRD were included in a five-year prospective multicentre study. Annual evaluation of nutritional status, lung function, OGTT and CGM was set up. Associations between annual rate changes (Δ) in lung function, ΔFEV1 (forced expiratory volume in 1 s) percentage predicted (pp) and ΔFVC (forced vital capacity) pp., and annual rate changes in OGTT or CGM variables were estimated with a mixed model with a random effect for subject. ResultsFrom 2009 to 2016, 112 PwCF (age: 21 ± 11 years, BMI (body mass index) z-score: −0.55 ± 1.09, FEV1pp: 77 ± 24 %, 2-h OGTT glucose: 122 ± 44 mg/dL, AUC (area under curve) >140 mg/dL: 1 mg/dL/day (0.2, 3.0) were included. A total of 428 OGTTs and 480 CGMs were collected. The participants presented annual decline of FVCpp and FEV1pp at −1.0 % per year (−1.6, −0.4), p < 0.001 and − 1.9 % per year (−2.5, −1.3), p < 0.001 respectively without change in BMI z-score during the study. Variation of two-hour OGTT glucose was not associated with declining lung function, as measured by ΔFEV1pp (p = 0.94) and ΔFVCpp (p = 0.90). Among CGM variables, only increase in AUC >140 mg/dL between two annual visits was associated with a decrease in ΔFVCpp (p < 0.05) and ΔFEV1pp (p < 0.05). ConclusionsThis prospective study supports the fact that early glucose abnormalities revealed by CGM predict pulmonary function decline in PwCF, while 2-h standard OGTT glucose is not associated with pulmonary impairment.

The Clinical Frailty Scale for Risk Stratification in Patients With Fibrotic Interstitial Lung Disease

Previous studies have shown the importance of frailty in patients with fibrotic interstitial lung disease (ILD). Is the Clinical Frailty Scale (CFS) a valid tool to improve risk stratification in patients with fibrotic ILD? Patients with fibrotic ILD were included from the prospective multicenter Canadian Registry for Pulmonary Fibrosis. The CFS was assessed using available information from initial ILD clinic visits. Patients were stratified into fit (CFS score 1-3), vulnerable (CFS score 4), and frail (CFS score 5-9) subgroups. Cox proportional hazards and logistic regression models with mixed effects were used to estimate time to death or lung transplantation. A derivation and validation cohort was used to establish prognostic performance. Trajectories of functional tests were compared using joint models. Of the 1,587 patients with fibrotic ILD, 858 (54%) were fit, 400 (25%) were vulnerable, and 329 (21%) were frail. Frailty was a risk factor for early mortality (hazard ratio, 5.58; 95%CI, 3.64-5.76, P< .001) in the entire cohort, in individual ILD diagnoses, and after adjustment for potential confounders. Adding frailty to established risk prediction parameters improved the prognostic performance in derivation and validation cohorts. Patients in the frail subgroup had larger annual declines in FVC %predicted than patients in the fit subgroup (-2.32; 95%CI,-3.39 to-1.17 vs-1.55; 95%CI,-2.04 to-1.15, respectively; P= .02). The simple and practical CFS is associated with pulmonary and physical function decline in patients with fibrotic ILD and provides additional prognostic accuracy in clinical practice.

Association between pulmonary function and rapid kidney function decline: a longitudinal cohort study from CHARLS

BackgroundPulmonary function has been reported to be associated with chronic kidney disease. However, the relationship between lung function and rapid kidney function decline remains unclear.MethodsParticipants aged ≥45 years with complete...

Comparison of safety and anxiety/depression in computed tomography-guided hook-wire localization versus electromagnetic navigation bronchoscopy-guided localization: a retrospective cohort study.

The utilization of computed tomography (CT)-guided localization and electromagnetic navigation bronchoscopy (ENB)-guided localization has gained significant traction in the localization of pulmonary nodules before video-assisted thoracoscopic surgery (VATS). This study aimed to ascertain the precision and safety of the two groups in the preoperative resection of isolated nodules in small peripheral lungs. Furthermore, we examined the subsequent outcomes pertaining to the decline in lung function and alterations in anxiety and depression following resection utilizing both localization techniques. A total of 177 patients with small-sized pulmonary nodules, scheduled to undergo video-assisted thoracoscopic limited resection, were enrolled in this study. The study involved the examination and comparison of pertinent findings obtained through the utilization of CT-guided hook-wire or ENB injection techniques. The nodules were localized by ENB in 57 patients and by CT guidance in 120 patients. There were no significant complications in ENB-guided localization group (0/57). CT-guided hook-wire localization group had more complications (61/120, P<0.001). There was no disparity observed in pulmonary function decline 3 months post-operation between the two cohorts. The analysis of postoperative Hospital Anxiety and Depression Scale (HADS) scores indicated that the CT-guided localization group exhibited higher anxiety and depression scores on the initial day and 2 weeks following surgery. ENB-guided and CT-guided localization can effectively identify solitary pulmonary nodules. ENB-guided localization has fewer complications, lower incidence of adverse events, and less impact on postoperative anxiety or depression, suggesting that this is a promising, safe, and feasible method for localization of solitary pulmonary nodules.

The Effects of Smartphones on Child Health

Over the last ten years, technology has advanced significantly, and more people throughout the world have access to smartphones. Because of the increased use of technology, including cellphones, children are leading more sedentary lifestyles. Long-term smartphone usage has sparked further questions about possible changes in spinal posture, continual neck flexion, restrictions on neck motions, and declines in pulmonary function. According to data from the Pew Research Center, the proportion of smartphone users in emerging and developing nations increased quickly from 21% in 2013 to 37% in 2015. By 2020, the numbers are projected to be 6.4 billion smartphone subscribers, or around 70% of the world's population. In the US, 84% of teenagers aged 13 to 19 and 79% of children aged 9 to 12 possess cellphones, and by the time they are 12 years old, they use their smartphones on average for five hours each day [1]. Mobile phones have reportedly become a need for young people and children, according to Pakistani research on cell phone habits among teens in southern Punjab [2]. Due to the rise in smartphone use among kids and teenagers, their musculoskeletal systems are significantly impacted. Obesity, poor posture, and thoracic limitation brought on by muscular imbalances are linked to the decline in fundamental physical fitness. The aforementioned issues often lead to a decline in pulmonary function. Musculoskeletal problems are likely to worsen with time, particularly if users see their cellphones with their heads flexed. Excessive smartphone usage may also affect the cervical angle scan, especially if users don't keep their posture neutral, which might put more strain on the cervical spine. Constant forward neck flexion when using a smartphone causes the lower cervical spine to bend excessively, which is linked to decreased lung function and respiratory muscle power. In terms of psychology, excessive smartphone usage weakens social bonds and increases loneliness, sadness, and social anxiety, leading to mental immaturity, emotional instability, inattentiveness, and lack of self-control in kids. Increased sleep issues are also linked to increased mobile phone use. Despite certain benefits, the increased use of cell phones has raised a lot of concerns over their negative impacts on academic performance, health, and character development. Several health issues are also related to increased smartphone usage in children. To maintain posture, cranio-cervical and improved respiratory function, instruction on optimal smartphone using posture as well as information on the implications of prolonged smartphone usage are required.

Long-term exposure to PM10 and respiratory health among Parisian subway workers

Exposure to ambient PM10 may increase the risk of chronic obstructive pulmonary disease (COPD) and lung function decline. We evaluated the long-term exposure to PM10 and its relationship with COPD prevalence and lung function in Parisian subway workers.Participants were randomly selected from a 15,000-subway worker cohort. Individual annual external exposure to PM10 (ePM10) was estimated using a company-specific job-exposure-matrix based on PM10 measurements conducted between 2004 and 2019 in the Parisian subway network. Mean annual inhaled PM10 exposure (iPM10) was modeled as function of ePM10 exposure, inhalation rate, and filtration efficiency of the respiratory protection used. COPD diagnosis was performed in March–May 2021 based on post-bronchodilator spirometry. The relationship between iPM10 and outcomes was assessed using logistic and linear regression models, adjusted for exposure duration and potential confounders.Amongst 254 participants with complete data, 17 were diagnosed as COPD. The mean employment duration was 23.2 ± 7.3years, with annual mean ePM10 of 71.8 ± 33.7 μg/m3 and iPM10 of 0.59 ± 0.27 μg/shift, respectively. A positive but statistically non-significant association was found for COPD prevalence with iPM10 (OR = 1.034, 95%-CI = 0.781; 1.369, per 100 ng/shift) and ePM10 (OR = 1.029, 95%-CI = 0.879; 1.207, per 10 μg/m3). No decline in lung function was associated with PM10 exposure. However, forced expiratory volume during the first second and forced vital capacity lower than normal were positively associated with exposure duration (OR = 1.125, 95%-CI = 1.004; 1.260 and OR = 1.171, 95%-CI = 0.989; 1.386 per year, respectively). Current smoking was strongly associated with COPD prevalence (OR = 6.85, 95%-CI = 1.87; 25.10) and most lung function parameters.This is the first study assessing the relationship between long-term exposure to subway PM10 and respiratory health in subway workers. The risk estimates related with subway PM10 exposure are compatible with those related to outdoor PM10 exposure in the large recent studies. Large cohorts of subway workers are necessary to confirm these findings.

Association Between Decreased Renal Function and Pulmonary Function Decline in Community-dwelling Adults.

Emerging evidence suggests that there is a close relationship between the human lung and kidney. This study evaluated whether decreased renal function was associated with accelerated pulmonary function decline in a large-scale community-based cohort. A total of 10,028 subjects of the prospective Ansung-Ansan cohort were eligible for the longitudinal analysis of changes in pulmonary function associated with decreased renal function (glomerular filtration rate <60 ml/min/1.73 m2). Logistic regression analysis was performed to evaluate factors associated with decreased baseline renal function, and a linear mixed model compared changes in pulmonary function in participants with and without decreased renal function after propensity score matching (PSM). At baseline, subjects with and without decreased renal function showed distinct characteristics, and the factors associated with decreased renal function were age, baseline forced vital capacity, hypertension, and white blood cell (WBC) count. A 1:4 PSM of age, sex, body mass index, and smoking status showed that the proportion of those with hypertension and the WBC count differed between the patients with decreased and normal renal function. In the PSM population, those with decreased renal function had a greater decline in forced expiratory volume in the first second (FEV1) than those without (p=0.0402); however, these differences were not found to be evident when hypertension and WBC count were further matched (p=0.0807). The results of our study demonstrated that decreased renal function was not directly associated with the rapid decline in pulmonary function in a community-based general population setting.

Lung function and cardiovascular risk at age 45 in a cohort of the general population

BackgroundImpaired lung function is associated with cardiovascular mortality, but the origins of this association are poorly understood. We investigated associations between lung function and cardiovascular risk scores in a general population cohort of men and women aged 45 years. MethodsParticipants are members of an unselected birth cohort followed to adulthood. Lung function determined at ages 32 and 45 by spirometry, body plethysmography, gas diffusion, and airway conductance were the main predictors. Future cardiovascular risk was estimated at age 45 using a multivariable cardiovascular risk algorithm – PREDICT. Risk scores were log-transformed and used as the dependent variable in linear regression analyses. We investigated cross-sectional associations with lung function at age 45 and longitudinal associations using changes in lung function between ages 32–45 as the predictors. Results863 of 1037 original cohort participants had data for analysis. Low lung volumes (FEV1, FVC, VA, TLC, and FRC) were associated with greater cardiovascular risk scores in the cross-sectional analyses at age 45 and the longitudinal analyses. These associations were stronger in women than in men, were independent of smoking history, and present in never smokers, even after adjusting for body mass index. Associations were not found for measures of airway function (FEV1/FVC ratio and sGaw) or gas transfer (TLco/VA). ConclusionsLow lung volumes at age 45 and accelerated pulmonary function decline are associated with a higher estimated cardiovascular risk scores in mid-adulthood. This association is stronger in women and is not explained by smoking or obesity.