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This study aimed to elucidate mid- to long-term radiological and respiratory outcomes in patients aged 7–11 years at index surgery with Marfan syndrome and early-onset scoliosis (EOS) in a retrospective multicenter study. Primary outcomes were final thoracic height and final percentage of predicted vital capacity (%VC) at or after 16 years of age. We identified 21 (6 male and 15 female) patients with a mean age of 9.9 years and mean follow-up period of 149.3 months. Fifteen patients underwent primary fusion, whereas six underwent growth-friendly surgery (GFS). The mean preoperative and final T1–T12 heights were 204.0 mm and 248.0 mm, respectively. Final pulmonary function tests were available for 16 patients, and the mean final %VC was 54.0% with 10 patients exhibiting a final %VC < 60%. A significant moderate association was observed between the final T1–T12 height and final %VC. The predicted final T1–T12 height required for a final %VC of 60% was approximately 260 mm. Although most older patients with Marfan syndrome and EOS acquired a considerably large final T1–T12 height, a larger thoracic height was required for satisfactory respiratory function in many cases; hence, GFS may be indicated even in this population. [ABSTRACT FROM AUTHOR]

This study aimed to elucidate mid- to long-term radiological and respiratory outcomes in patients aged 7–11 years at index surgery with Marfan syndrome and early-onset scoliosis (EOS) in a retrospective multicenter study. Primary outcomes were final thoracic height and final percentage of predicted vital capacity (%VC) at or after 16 years of age. We identified 21 (6 male and 15 female) patients with a mean age of 9.9 years and mean follow-up period of 149.3 months. Fifteen patients underwent primary fusion, whereas six underwent growth-friendly surgery (GFS). The mean preoperative and final T1–T12 heights were 204.0 mm and 248.0 mm, respectively. Final pulmonary function tests were available for 16 patients, and the mean final %VC was 54.0% with 10 patients exhibiting a final %VC < 60%. A significant moderate association was observed between the final T1–T12 height and final %VC. The predicted final T1–T12 height required for a final %VC of 60% was approximately 260 mm. Although most older patients with Marfan syndrome and EOS acquired a considerably large final T1–T12 height, a larger thoracic height was required for satisfactory respiratory function in many cases; hence, GFS may be indicated even in this population. [ABSTRACT FROM AUTHOR]

Background and Study Aim Respiratory function in women aged 45-50 often declines due to natural physiological changes associated with aging. These changes include reduced lung elasticity, decreased diaphragm efficiency, and a general reduction in physical activity. The purpose of this study was to assess the impact of a combined yoga and Pilates program on respiratory function in women aged 45-50. Material and Methods The study involved 38 women with an average age of 47.7 ± 2.5 years. A pedagogical experiment was conducted over six months. The experimental group (n=19) participated in a training regimen focused on improving respiratory function through a combination of yoga and Pilates. The control group (n=19) followed a yoga-based training program. Both groups completed an equal number of sessions--72 in total. The external respiratory function of the participants was assessed using spirometry at two key points: at the beginning of the study and after six months. Results The comparison of respiratory function indicators between the experimental and control groups after 6 months of training revealed significant differences across most parameters. The actual value of Vital Capacity was significantly greater in the experimental group compared to the control group by 0.17 L (p < 0.01), forced vital capacity by 0.30 L (p < 0.01), forced expiratory volume by 0.19 L (p < 0.01), peak expiratory flow by 0.23 L/sec (p < 0.01), maximum expiratory flow at 25% of Forced Vital Capacity by 0.96 L/sec (p < 0.001), maximum expiratory flow at 50% of Forced Vital Capacity by 0.59 L/sec (p < 0.001), expiratory reserve volume by 0.47 L (p < 0.001), and maximal voluntary ventilation by 17.00 L/min (p < 0.001). Conclusions The combined Yoga and Pilates training regimen was more effective in improving external respiratory function than Yoga alone. This result highlights the benefits of an integrated approach to respiratory health for women aged 45-50. The study demonstrates the potential advantages of combining different types of exercise to counteract age-related declines in respiratory function. Such programs could play a significant role in promoting overall well-being in this age group. [ABSTRACT FROM AUTHOR]

Objectives: This research aimed to examine the connection between indoor air quality and respiratory function in preschool children, a topic that, to the best of our knowledge, has not been explored before. Methods: This cross-sectional study was conducted within the geographical location of the Ministry of Education of Jeddah. Four hundred preschool-aged children (4–6 years old) from four preschools were enrolled. Structured questionnaires and peak flow meter (PFM) were used to assess the overall health and pulmonary function of the participants. An air detector for formaldehyde (HCHO), volatile organic compound, and fine particulate dust matter and a carbon dioxide (CO2 ) detector with temperature and humidity monitors were used to measure the air pollutants. Results: A significant difference was observed in PFM measurement between the four preschools (P = 0.017). The highest PFM green zone value was identified in the North preschool (n = 32, 54.2%), and the lowest value was identified in the Central preschool (n = 21, 33.3%). Regarding the red zone, the highest value was observed in the Central preschool (n = 14, 22.2%) and the lowest in the North preschool (n = 1, 1.7%). PFM measurement in the green zone showed lower CO2 levels (P = 0.014) and temperature (P = 0.04) than those in the yellow and red zones. Conclusion: Children schooling in adequate ventilation environments had better respiratory function than those in inadequate environmental ventilation. [ABSTRACT FROM AUTHOR]

Cystic fibrosis (CF) is a hereditary disease characterized by the progression of respiratory disorders, especially in adult patients. The purpose of the study was to identify volatile organic compounds (VOCs) as predictors of respiratory dysfunction, chronic respiratory infections of Staphylococcus aureus, Pseudomonas aeruginosa, Burkholderia cepacia, and VOCs associated with severe genotype and highly effective modulator treatment (HEMT). Exhaled breath samples from 102 adults with CF were analyzed using PTR-TOF-MS, obtained during a forced expiratory maneuver and normal quiet breathing. Using cross-validation and building gradient boosting classifiers (XGBoost), the importance of VOCs for functional and clinical outcomes was determined. The presence of the previously identified VOCs indole, phenol, and dimethyl sulfide were metabolic outcomes associated with impaired respiratory function. New VOCs associated with respiratory disorders were methyl acetate, carbamic acid, 1,3-Pentadiene, and 2,3-dimethyl-2-butene; VOCs associated with the above mentioned respiratory pathogens were non-differentiable nitrogen-containing organic compounds m/z = 47.041 (CH5NO)+ and m/z = 44.044 (C2H5NH+), hydrocarbons (cyclopropane, propene) and methanethiol; and VOCs associated with severe CFTR genotype were non-differentiable VOC m/z = 281.053. No significant features associated with the use of HEMT were identified. Early non-invasive determination of VOCs as biomarkers of the severity of CF and specific pathogenic respiratory flora could make it possible to prescribe adequate therapy and assess the prognosis of the disease. However, further larger standardized studies are needed for clinical use. [ABSTRACT FROM AUTHOR]

Background/Aim: Esophagectomy for esophageal carcinoma (EC) is known to lead to deterioration of respiratory function (RF) due to thoracotomy and mediastinal lymph node dissection. This study aimed to evaluate the impact of transmediastinal esophagectomy (TME) on pulmonary function. Patients and Methods: We retrospectively analyzed the data of 102 patients with EC who underwent transthoracic esophagectomy (TTE) or TME and underwent RF tests within three months postoperatively at Kyoto Prefectural University of Medicine between 2014 and 2022. Perioperative pulmonary functions were evaluated based on vital capacity (VC) and forced expiratory volume in one second (FEV1.0). Results: Among 102 patients undergoing esophagectomy, 12 (11.8%) patients were included in the TTE group, and the remaining 90 (88.2%) patients were included in the TME group. Neoadjuvant treatments were significantly more common in the TTE group (p=0.011), with more advanced tumor stages (p=0.017). The TME group had significantly lower estimated blood loss (p=0.015). RF after esophagectomy showed a decrease in VC, and VC of predicted (%VC). The decrease rate in VC, %VC, and FEV1.0 was significantly greater in the TTE group than in the TME group. Conclusion: TME is a surgical procedure with a less severe postoperative decline in RF than TTE. [ABSTRACT FROM AUTHOR]

Background: With age, lungs undergo typical changes that lead to a deterioration of respiratory function. Our aim was to assess the role of age‐associated hyperphosphatemia in these changes. Methods: We used C57BL6 mice to study an ageing model in vivo and human lung fibroblasts were treated with a phosphate donor, beta‐glycerophosphate (BGP), to explore mechanisms involved. Respiratory function was registered with a double chamber plethysmograph. Lung structure was analysed by different staining, phosphate and cytokines levels by colorimeric kits, expression of fibrosis, inflammation and ET‐1 system by western blot or RT‐PCR. Results: Old mice showed hyperphosphatemia, along with lung fibrosis, loss of elastin, increased expression of pro‐inflammatory cytokines and impaired respiratory function. BGP induced inflammation and fibrosis in fibroblasts through the activation and binding of NFkB to the MCP‐1 or FN promoters. BGP increased ECE‐1 expression by inducing NFkB binding to the ECE‐1 promoter. QNZ, an NFkB inhibitor, blocked these effects. When ECE‐1 was inhibited with phosphoramidon, BGP‐induced inflammation and fibrosis were significantly reduced, suggesting a role for ET‐1 in BGP‐mediated effects.ET‐1 produced effects similar to those of BGP, which were also dependent on NFkB. To study the pathophysiological relevance of hyperphosphatemia in vivo, a low‐P diet was administered to a group of old animals, showing an improvement in fibrosis, inflammation and respiratory function compared to old mice on a standard diet. Conclusion: These results suggest that age‐related hyperphosphatemia induces inflammation, fibrosis, and impaired respiratory function in old mice; these effects appear to be mediated by ET‐1 and NFkB activation. [ABSTRACT FROM AUTHOR]

Tongue brushing improves respiratory function in older adults. Considering connection between the respiratory-related and suprahyoid muscles, this study aimed to investigate whether tongue-brushing interventions can improve myoelectric activity during respiration. A six-week randomized controlled trial was conducted in Kitakyushu, Japan, with 50 participants aged ≥ 65 years. The participants were allocated to the intervention (tongue brushing with routine oral hygiene) or control (routine oral hygiene alone) groups. Surface electromyography (sEMG) was used to assess the myoelectric activity of the suprahyoid muscles during inhalation, exhalation, and forced vital capacity (FVC). A survey was conducted at baseline and the end of the follow-up period. Thirty-six participants were recruited for the analysis. The root mean squares (RMS) of sEMG during exhalation increased significantly at the end of the follow-up period compared with that at baseline in the intervention group [48.7 (18.0–177.5) vs. 64.9 (21.6–163.0), p = 0.001], but not in the control group. The generalized linear model revealed that the ratio of change in FVC was correlated with the change in the RMS of sEMG of the suprahyoid muscles during exhalation after adjusting for potential confounders. Tongue brushing enhances the myoelectric activity of the suprahyoid muscle. [ABSTRACT FROM AUTHOR]

This study explores the role of inflammation and oxidative stress, hallmarks of COVID-19, in accelerating cellular biological aging. We investigated early molecular markers—DNA methylation age (DNAmAge) and telomere length (TL)—in blood leukocytes, nasal cells (NCs), and induced sputum (IS) one year post-infection in pauci- and asymptomatic healthcare workers (HCWs) infected during the first pandemic wave (February–May 2020), compared to COPD patients, model for "aged lung". Data from questionnaires, Work Ability Index (WAI), blood analyses, autonomic cardiac balance assessments, heart rate variability (HRV), and pulmonary function tests were collected. Elevated leukocyte DNAmAge significantly correlated with advancing age, male sex, daytime work, and an aged phenotype characterized by chronic diseases, elevated LDL and glycemia levels, medications affecting HRV, and declines in lung function, WAI, lymphocyte count, hemoglobin levels, and HRV (p < 0.05). Increasing age, LDL levels, job positions involving intensive patient contact, and higher leukocyte counts collectively contributed to shortened leukocyte TL (p < 0.05). Notably, HCWs exhibited accelerated biological aging in IS cells compared to both blood leukocytes (p ≤ 0.05) and NCs (p < 0.001) and were biologically older than COPD patients (p < 0.05). These findings suggest the need to monitor aging in pauci- and asymptomatic COVID-19 survivors, who represent the majority of the general population. [ABSTRACT FROM AUTHOR]

Purpose: The diagnosis of progressive fibrosing interstitial lung disease (PF-ILD) using computed tomography (CT) is an important medical practice in respiratory care, and most imaging findings for this disease have been obtained with inspiratory CT. It is possible that some characteristic changes in respiration may be seen in normal and diseased lung in PF-ILD, which may lead to a new understanding of the pathogenesis of interstitial pneumonia, but it has never been examined. In this study, we collected and selected inspiratory and expiratory CT scans performed in pure PF-ILD cases, and evaluated the volumes of diseased and normal lung separately by manual detection and 3-dimensional volumetry to characterize the dynamic features of PF-ILD. Materials and methods: Cases were collected retrospectively from a total of 753 inspiratory and expiratory CT scans performed at our hospital over a 3-year period. Sixteen cases of pure PF-ILD, excluding almost all other diseases, were included. We measured their diseased, normal, and the whole lung volumes manually and evaluated the correlation of their values and their relationship with respiratory function tests (FVC, FVC%-predicted, and DLCO%-predicted). Results: The relative expansion rate of the diseased lung is no less than that of the normal lung. The "Expansion volume of total lung" divided by the "Expansion volume of normal lung" was found to be significantly associated with DLCO%-predicted abnormalities (p = 0.0073). Conclusion: The diseased lung in PF-ILD retained expansion capacity comparable to the normal lung, suggesting a negative impact on respiratory function. [ABSTRACT FROM AUTHOR]

Peripheral benign lung tumors are often asymptomatic and incidentally detected on chest radiographs. Surgical intervention is recommended when feasible. Single-port thoracoscopic resection has emerged as a promising technique for treating various chest diseases, including lung tumors. This study aimed to assess the clinical efficacy of single-port thoracoscopic resection for benign lung tumors and its impact on respiratory function and inflammatory factors. A total of 128 eligible patients diagnosed with benign lung tumors were randomly assigned to either the observation group (undergoing single-port thoracoscopic resection) or the control group (undergoing conventional thoracic surgery). Surgical outcomes, complications, pulmonary and respiratory function, and inflammatory factors were compared between the two groups. The observation group showed significantly lower intraoperative bleeding, shorter hospitalization time, and lower complication rates compared to the control group. Patients in the observation group exhibited higher vital capacity (VC), forced vital capacity (FVC), and total lung capacity (TLC) levels at 1/2 week and 1 month after surgery. Additionally, forced expiratory volume in one second (FEV1) and maximum ventilation volume per minute (MVV) levels were higher in the observation group post-surgery, with a lower Borg score. Levels of C-reactive protein (CRP), precalcitonin (PCT), and tumor necrosis factor (TNF-α) were lower in the observation group postsurgery. Single-port thoracoscopic resection demonstrates favorable clinical efficacy for treating benign lung tumors, reducing bleeding, and shortening hospital stays. Furthermore, it improves lung and respiratory function while reducing inflammatory factors. This technique is safe, effective, and holds promise for wider application in managing benign lung tumors. [ABSTRACT FROM AUTHOR]

The article highlights the main aspects of the study of the development state of physiological and speech breathing in preschool children with congenital features in the structure of the articulatory apparatus, characteristic of rhinolalia. The results of the theoretical analysis of the definitions of «breathing pattern», «physiological breathing» and «speech breathing» are presented. The authors revealed the influence of anatomical and physiological features of the respiratory system on speech is revealed. The peculiarities of the respiratory function in children with rhinolalia are characterized and the importance of the development of the specified processes in logocorrection work is determined. According to the results of the analysis of the theoretical and practical assets of domestic scientists, it was established that the vast majority of current methods and directions of logocorrective influence with children of preschool age with congenital peculiarities in the structure of the articulatory apparatus combine exercises for the development of respiratory function and articulatory praxis. They, in turn, contribute to the formation of physiological and speech breathing in preschool children with speech difficulties. The authors proposed examples of exercises at the activation and activity stages of the work system intending to develop physiological and speech breathing in preschool children with rhinolalia. The positive effect of exercises to stimulate the child's brain stem structures on minimizing the manifestations of physiological and speech breathing disorders in preschool children with congenital peculiarities in the structure of the articulation apparatus was found. It was concluded that the specificity of the development of physiological and speech breathing in children with congenital peculiarities in the structure of the articulation apparatus depends on the type of nosology and its degree of severity, and the systematic use of exercises promotes myelinogenesis and synaptogenesis, activation of stem processes, improvement of the structural and functional organization of neural networks, and development of physiological and speech breathing. [ABSTRACT FROM AUTHOR]

Introduction. Smoking is one of the most significant modifiable risk factors for many diseases and related deaths. In recent years, more and more people are seeking alternatives that allow them to quit smoking and improve their quality of life. One such alternative is Heat-Not-Burn Tobacco Products (HTPs), which have gained significant popularity among both smokers and non-smokers. Their impact on human health has not yet been thoroughly investigated. This review summarizes the current knowledge regarding the impact of these devices on human health. Objective. The aim of the study is to investigate the physiological and biochemical effects of HTP devices on human health, and to compare their impact relative to traditional cigarettes on the functions of the cardiovascular, respiratory, digestive, skeletal and urinary systems, oxidative stress, inflammatory state, and periodontal diseases. Review Methods. A review was performed of studies available on PubMed and Google Scholar. Summary. The scientific research cited in the review confirms the negative impact of HTP devices on human health, although clearly demonstrating that they represent a better alternative to traditional cigarettes. This is achieved through the reduction of harmful substance content in the inhaled aerosol, resulting in lower oxidative stress, inflammatory state, and intensity of many diseases affecting smokers. [ABSTRACT FROM AUTHOR]

The assessment of gas exchange under varying ambient and metabolic conditions is an important and fundamental investigation of respiratory function. The gold standard is an arterial blood gas (ABG) sample; however, the procedure is not universally performed by medical scientists, is not standardised, and is typically taught by a subjective Halsted 'see one, do one' approach. The Australian and New Zealand Society of Respiratory Science recognised the need to create an ABG position statement that includes the required pre‐requisite education, an evidence‐based procedure and the minimum reporting and competency assessment requirements. This position statement aims to minimise patient discomfort, to improve puncture success rate and reduce the potential for sample handling and analysis error. Importantly, this position statement translates to all relevant health professionals, including medical officers, scientists, nursing staff and allied health. [ABSTRACT FROM AUTHOR]

Respiratory dysfunction is an important hallmark of amyotrophic lateral sclerosis (ALS). Elevation of creatine kinase (CK) has been reported in 23–75% of ALS patients, but the underlying mechanisms remain unknown. This work aims to enlighten the role of CK as a prognostic factor of respiratory dysfunction in ALS. A retrospective analysis of demographic and clinical variables, CK, functional decline per month (ΔFS), forced vital capacity (%FVC), and mean amplitude of the phrenic nerve compound motor action potential (pCMAP) in 319 ALS patients was conducted. These measurements were evaluated at study entry, and patients were followed from the moment of first observation until death or last follow-up visit. High CK values were defined as above the 90th percentile (CK ≥ P90) adjusted to sex. We analyzed survival and time to non-invasive ventilation (NIV) as proxies for respiratory impairment. Linear regression analysis revealed that high CK was associated with male sex (p < 0.001), spinal onset (p = 0.018), and FVC ≥ 80% (p = 0.038). CK was 23.4% higher in spinal-onset ALS patients (p < 0.001). High CK levels were not linked with an increased risk of death (p = 0.334) in Cox multivariate regression analysis. CK ≥ P90 (HR = 1.001, p = 0.038), shorter disease duration (HR = 0.937, p < 0.001), lower pCMAP (HR = 0.082, p < 0.001), and higher ΔFS (HR = 1.968, p < 0.001) were risk factors for respiratory failure. The association between high CK levels and poorer respiratory outcomes could derive from cellular metabolic stress or a specific phenotype associated with faster respiratory decline. Our study suggests that CK measurement at diagnosis should be more extensively investigated as a possible marker of poor respiratory outcome in future studies, including a larger population of patients. [ABSTRACT FROM AUTHOR]

Background: The prediction of postoperative functional status in non-small cell lung cancer patients based on preoperative assessment of physical and respiratory capacity is inadequate based on recent RCTs. Material and methods: Prospectively collected spirometry data and the six-minute walk test results of 57 patients treated with lobectomy for non-small cell lung cancer were analyzed. The tests were performed before surgery, and 30 and 90 days after lobectomy. All patients underwent a respiratory functional and physical capacity assessment. Results: All 57 patients underwent lobectomy. Before surgery, mean FEV1 was 2.4 ± 0.7 L, corresponding to %FEV1 of 88.3 ± 17.3%. The mean absolute and expected 6MWT distance was 548 ± 74.6 m and 108.9 ± 14.5%, respectively. At the first postoperative evaluation 30 days after surgery, FEV1 and %FEV1 decreased significantly by an average of 0.5 ± 0.3 L and 15.1 ± 10.7%, while 6MWT and expected 6MWT decreased minimally by an average of 1.0 m and 0.8%, respectively. Three months after lobectomy, FEV1 and %FEV1, compared with the initial assessment, decreased by an average of 0.3 ± 0.3 l and 7.8 ± 10.0%, while 6MWT and its expected score increased to 564.6 ± 84.6 m and 112.8 ± 15.8%, respectively. Conclusions: After lobectomy, FEV1 decreased slightly and less than expected, while 6MWT increased proportionally compared to the preoperative evaluation. [ABSTRACT FROM AUTHOR]

Objective: Assessing rehabilitation effectiveness for persistent symptoms post-infection with emerging viral respiratory diseases. Data sources: Systematic review of seven databases (MEDLINE, EMBASE, Cochrane Library, PEDro, MedRxiv, CNKI, Wanfang) until 30 December 2023. Review methods: Evaluated 101 studies (9593 participants) on respiratory function, exercise capacity, and quality of life. Methodological quality was assessed using the Cochrane Collaboration's Risk of Bias tool for randomized controlled trials (RCTs), the Newcastle-Ottawa Scale (NOS) for observational studies and non-RCTs, and the NIH Quality Assessment Tools for before-after studies. Results: The most common rehabilitation program combined breathing exercises with aerobic exercise or strength training. Rehabilitation interventions significantly enhanced respiratory function, as evidenced by improvements on the Borg Scale (MD, −1.85; 95% CI, −3.00 to −0.70, low certainty), the mMRC Dyspnea Scale (MD, −0.45; 95% CI, −0.72 to −0.18, low certainty), and the Multidimensional Dyspnoea-12 Scale (MD, −4.64; 95% CI, −6.54 to −2.74, moderate certainty). Exercise capacity also improved, demonstrated by results from the Six-Minute Walk Test (MD, 38.18; 95% CI, 25.33–51.03, moderate certainty) and the Sit-to-Stand Test (MD, 3.04; 95% CI, 1.07–5.01, low certainty). Conclusion: Rehabilitation interventions are promising for survivors of viral respiratory diseases, yet gaps in research remain. Future investigations should focus on personalizing rehabilitation efforts, utilizing remote technology-assisted programs, improving research quality, and identifying specific subgroups for customized rehabilitation strategies to achieve the best outcomes for survivors. [ABSTRACT FROM AUTHOR]

The study presented is actually an observational research resulting from the analysis of numerous articles and online guidelines, as well as from personal practice in hospitals both in the United Kingdom and Romania, regarding innovative physiotherapy management as well as the types of treatments developed by multidisciplinary teams, with the input of physiotherapists, which have contributed to improving the necessary environment for the development of an appropriate rehabilitation program for patients affected by the SARS-CoV-2 virus, according to current international standards. In this analysis, we focus on recently published experimental research that explores the impact of physiotherapy intervention on the pulmonary function and recovery process of severely affected patients, providing a critical view of the results obtained in different experimental studies. The hypothesis of the observational research starts from the premise that following studies conducted in various medical facilities worldwide regarding COVID-19 infection, specific physiotherapy management applied to these patients is resorted to. [ABSTRACT FROM AUTHOR]

Background: Respiratory infections, particularly bronchopneumonia, pose a significant health challenge in paediatric populations, often leading to respiratory distress and compromised well-being. In the context of managing bronchopneumonia in children, exploring non-invasive interventions becomes beneficial. The application of thoracic kinesiotaping is hypothesized to positively impact lung volumes by assisting respiratory function and facilitating breathing pattern. Methodology: To determine the effectiveness of thoracic kinesiotaping on the functional capacities in children with bronchopneumonia, a group of 32 children aged 5 to 12 years were selected adhering to specific inclusion criteria. These participants were then randomly assigned to two groups. Group A underwent conventional respiratory physiotherapy exclusively while Group B participants received a combination of thoracic kinesiotaping and conventional respiratory physiotherapy. Pre-intervention assessment included baseline data, pulmonary function tests (PFT), Paediatric Dyspnea Scale (PDS) and Chest expansion. The treatment protocol spanned a period of three days. Analysis of data was done through Instat software. Conclusion: The analysis revealed a notable increase in Forced Expiratory Volume in 1 second (FEV1) and the FEV1/Forced Vital Capacity (FVC) Ratio during pulmonary function testing (PFT), accompanied by a marginal improvement in chest expansion. These findings suggest a positive impact of kinesiotaping on respiratory parameters, indicating potential benefits for children with pulmonary conditions. [ABSTRACT FROM AUTHOR]

Background: Variations in thoracic spine morphology exist across human populations; however, comparative studies evaluating detailed metrics are limited, preventing establishment of definitive population patterns and clinical norms. This study analyzed thoracic vertebral body dimensions across three global population groups to quantify anatomical differences and explored correlations with respiratory disease. Methods: Computed tomography scans of 360 age-matched subjects of Kashmiri Muslims, Kashmiri Pandits and Dogras, and Ladakhi (n=120 each) were analyzed. Several linear vertebral body dimensions were measured at T1-T12 levels. One-way ANOVA with Tukey's tests compared groups. Pearson's correlations evaluated associations between selection metrics and pulmonary function test results. Results: Kashmiri Muslims demonstrated smaller anterior and mid-vertebral heights at upper thoracic (T1-T6) levels versus other cohorts (p<0.05). Kashmiri Pandits and Dogras exhibited greater vertebral width at T3-T8 than Ladakhi (p<0.01). Vertebral height/depth ratios at T3 and T9 negatively correlated with forced vital capacity across groups (p<0.05, r=-0.23 and -0.18). Conclusion: Morphometric variation exists in thoracic vertebral bodies between major population groups, which correlate with respiratory differences. Establishing normal ranges by ancestry has implications for clinical interpretation in various pathologies. [ABSTRACT FROM AUTHOR]

Objective: This comparative analysis aimed to investigate the efficacy of Sivelestat Sodium Hydrate (SSH) combined with Ulinastatin (UTI) in the treatment of sepsis with acute respiratory distress syndrome (ARDS). Methods: A control group and an observation group were formed with eighty-four cases of patients with sepsis with ARDS, with 42 cases in each group. The control group was intravenously injected with UTI based on conventional treatment, and the observation group was injected with SSH based on the control group. Both groups were treated continuously for 7 days, and the treatment outcomes and efficacy of both groups were observed. The Murray Lung Injury Score (MLIS), Sequential Organ Failure Assessment (SOFA), and Acute Physiology and Chronic Health Evaluation II (APACHE II) were compared. Changes in respiratory function, inflammatory factors, and oxidative stress indicators were assessed. The occurrence of adverse drug reactions was recorded. Results: The total effective rate in the observation group (95.24%) was higher than that in the control group (80.95%) (P < 0.05). The mechanical ventilation time, intensive care unit (ICU) hospitalization time, and duration of antimicrobial medication in the observation group were shorter and multiple organ dysfunction syndrome incidence was lower than those in the control group (P < 0.05). The mortality rate of patients in the observation group (35.71%) was lower than that in the control group (52.38%), but there was no statistically significant difference between the two groups (P > 0.05). MLIS, SOFA, and APACHE II scores in the observation group were lower than the control group (P < 0.05). After treatment, respiratory function, inflammation, and oxidative stress were improved in the observation group (P < 0.05). Adverse reactions were not significantly different between the two groups (P > 0.05). Conclusion: The combination of SSH plus UTI improves lung injury and pulmonary ventilation function, and reduces inflammation and oxidative stress in patients with sepsis and ARDS. [ABSTRACT FROM AUTHOR]

Objectives: To evaluate the suitability of the Global Lung Function Initiative (GLI)‐2012 other/mixed and GLI‐2022 global reference equations for evaluating the respiratory capacity of First Nations Australians. Design, setting: Cross‐sectional study; analysis of spirometry data collected by three prospective studies in Queensland, the Northern Territory, and Western Australia between March 2015 and December 2022. Participants: Opportunistically recruited First Nations participants in the Indigenous Respiratory Reference Values study (Queensland, Northern Territory; age, 3–25 years; 18 March 2015 – 24 November 2017), the Healthy Indigenous Lung Function Testing in Adults study (Queensland, Northern Territory; 18 years or older; 14 August 2019 – 15 December 2022) and the Many Healthy Lungs study (Western Australia; five years or older; 10 October 2018 – 7 November 2021). Main outcome measures: Goodness of fit to spirometry data for each GLI reference equation, based on mean Z‐score and its standard deviation, and proportions of participants with respiratory parameter values within 1.64 Z‐scores of the mean value. Results: Acceptable and repeatable forced expiratory volume in the first second (FEV1) values were available for 2700 First Nations participants in the three trials; 1467 were classified as healthy and included in our analysis (1062 children, 405 adults). Their median age was 12 years (interquartile range, 9–19 years; range, 3–91 years), 768 (52%) were female, and 1013 were tested in rural or remote areas (69%). Acceptable and repeatable forced vital capacity (FVC) values were available for 1294 of the healthy participants (88%). The GLI‐2012 other/mixed and GLI‐2022 global equations provided good fits to the spirometry data; the race‐neutral GLI‐2022 global equation better accounted for the influence of ageing on FEV1 and FVC, and of height on FVC. Using the GLI‐2012 other/mixed reference equation and after adjusting for age, sex, and height, mean FEV1 (estimated difference, –0.34; 95% confidence interval [CI], –0.46 to –0.22) and FVC Z‐scores (estimated difference, –0.45; 95% CI, –0.59 to –0.32) were lower for rural or remote than for urban participants, but their mean FEV1/FVC Z‐score was higher (estimated difference, 0.14; 95% CI, 0.03–0.25). Conclusion: The normal spirometry values of healthy First Nations Australians may be substantially higher than previously reported. Until more spirometry data are available for people in urban areas, the race‐neutral GLI‐2022 global or the GLI‐2012 other/mixed reference equations can be used when assessing the respiratory function of First Nations Australians. [ABSTRACT FROM AUTHOR]

Background. Optimal respiratory function and cardiovascular endurance are integral to overall health and athletic performance. Yogic interventions have emerged as potential strategies to enhance physiological and physical parameters. These metrics not only unlock the human body's potential but also play a vital role in increasing sports performance. Objectives. This study aimed to evaluate the effectiveness of a structured yogic regimen in improving respiratory function and cardiovascular endurance in young male adults, shedding light on yoga's role as a complementary approach to physical fitness enhancement. Materials and methods. Forty (N = 40) male undergraduate university students (aged 18 to 25 years) were randomly assigned to the experimental (n = 20) and control group (n = 20). The experimental investigation centered on vital capacity (VC), both positive and negative breath holding times (PBHT and NBHT), peak flow rate (PFR), and cardiovascular endurance (CVE). Using an analytical research approach, a randomized pre-test - post-test - controlled group design was implemented. The experimental group engaged in daily yoga sessions supervised by certified instructors, incorporating various asanas, pranayama techniques, and meditation, while the control group maintained their regular lifestyle. Pre-and post-intervention assessments of respiratory parameters and cardiovascular endurance were conducted using standardized tests. Statistical analyses, including Levene's test for normality, and paired t-tests for intra-group comparisons, were performed using SPSS software (IBM, version 25, Chicago). The experiment lasted for six weeks, with a significance level set at α = 0.05. Results. The paired t-test analyses demonstrated significant improvements in VC t(19) = 4.96, and p < 0.000; PBHT t(19) = 6.34, and p < 0.000; NBHT t(19) = 4.18, and p < 0.001; PFR t(19) = 7.02, and p < 0.000; as well as CVE t(19) = 3.96, and p < 0.001, within the experimental group. Conversely, no significant changes were observed in the control group. Conclusions. The findings underscore the effectiveness of a six-week yogic intervention in enhancing respiratory function and cardiovascular endurance among young male adults. Integrating yoga into exercise routines may yield substantial benefits for physical fitness improvement. [ABSTRACT FROM AUTHOR]

Introduction/Aims: Duchenne muscular dystrophy (DMD) presents with skeletal muscle weakness, followed by cardiorespiratory involvement. The need for longitudinal data regarding DMD that could serve as a control for determining treatment efficacy in clinical trials has increased notably. The present study examined the longitudinal data of Japanese DMD patients collectively and assessed individual patients with pathogenic variants eligible for exon‐skipping therapy. Methods: Patients with DMD who visited Kobe University Hospital between March 1991 and March 2019 were enrolled. Data between the patients' first visit until age 20 years were examined. Results: Three hundred thirty‐seven patients were included. Serum creatine kinase levels showed extremely high values until the age of 6 years and a rapid decline from ages 7–12 years. Both the median 10‐m run/walk velocity and rise‐from‐floor velocity peaked at the age of 4 years and declined with age. The values for respiratory function declined from the age of 11 years. The median left ventricular ejection fraction was >60% until the age of 12 years and rapidly declined from ages 13–15 years. Examination of the relationship between pathogenic variants eligible for exon‐skipping therapy and longitudinal data revealed no characteristic findings. Discussion: We found that creatine kinase levels and motor, respiratory, and cardiac functions each exhibited various changes over time. These findings provide useful information about the longitudinal data of several outcome measures for patients with DMD not receiving corticosteroids. These data may serve as historical controls in comparing the natural history of DMD patients not on regular steroid use in appropriate clinical trials. [ABSTRACT FROM AUTHOR]

The aim of our study is to find out whether the return rate of parasympathetic activity (PA) can be accelerated with auricular transcutaneous vagus nerve stimulation (TVNS). Pulmonary function test, ANS activity, pulse and blood pressure measurements were made. Individuals ran for 15 minutes. Those in the TVNS group received 5 minutes of auricular VNS. In the control group, headphones were attached but no current was given. After the end of their procedures, they were compared with pre-exercise. In the TVNS group, the pulse parameter was higher than in the initial measurement (p=0.001). There was a significant (p=0.007) rise in the FEV1 value in the VNS group. The sympathetic nervous system (SNS) index (p<0.05) increased in both groups when compared to the initial measurement, although there was no significant difference in the index values between the groups. The TVNS group showed an increase from the first measurement (p<0.05), but there was no significant difference in the parasympathetic nervous system (PNS) Index between the groups (p>0.05). The groups' values for the first and second measures were equal (p>0.05), and the root mean square of the successive differences (RMSSD) values did not reveal a significant difference. TVNS can improve respiratory parameters in healthy individuals in the acute period after exercise, and it seems that it can also increase activation in both the sympathetic and parasympathetic system. It can be stated that TVNS may lead to variable results in different circumstances in sports [ABSTRACT FROM AUTHOR]

Background/objective: Insufficiency of respiratory muscles is the most important reason for mortality in the natural history of SMA. Thus, improvement or stabilization of respiratory function by disease-modifying therapies (DMT) is a very important issue. Methods: We examined respiratory function using forced vital capacity (FVC) in 42 adult SMA patients (2 SMA type 1, 15 SMA type 2, 24 SMA type 3, 1 SMA type 4, median age 37 years, range 17-61 years) treated with nusinersen for a median of 22.1 months (range 2.1 to 46.7 months). Change in FVC was assessed using mixed effects linear regression models. Results: Baseline FVC differed significantly between SMA type 1 (4.0, 8.0%), 2 (median 22.0%, IQR 18.0-44.0), 3 (median 81.0%, IQR 67.0-90.8) and, respectively, type 4 (84.0%) patients reflecting the heterogeneity of respiratory impairment based on the SMA type in adulthood (p < 0.0001). FVC remained stable during follow-up (mean -0.047, 95% CI -0.115 to 0.020, p = 0.17); however, subgroup analysis showed an increase in FVC of type 2 patients (mean 0.144, 95% CI 0.086 to 0.202, p < 0.0001) and a decrease in FVC of type 3/4 patients (-0.142, 95% CI -0.239 to -0.044, p = 0.005). Conclusion: The observed improvement in FVC in patients with SMA type 2 can be seen as a therapeutic response differing from the progressive decline typically seen in the spontaneous course. For SMA type 3/4 patients approaching normal spirometry at baseline, FVC may only be of limited use as an outcome parameter due to ceiling effects. [ABSTRACT FROM AUTHOR]

Background: Many patients with heart disease potentially have comorbid chronic obstructive pulmonary disease (COPD); however, there are not enough opportunities for screening, and the qualitative differentiation of shortness of breath (SOB) has not been well established. We investigated the detection rate of SOB based on a visual and qualitative dynamic lung hyperinflation (DLH) detection index during cardiopulmonary exercise testing (CPET) and assessed potential differences in respiratory function between groups. Methods: We recruited 534 patients with heart disease or patients who underwent simultaneous CPET and spirometry (369 males, 67.0 ± 12.9 years) to scrutinize physical functions. The difference between inspiratory and expiratory tidal volume was calculated (TV E-I) from the breath-by-breath data. Patients were grouped into convex (decreased TV E-I) and non-convex (unchanged or increased TV E-I) groups based on their TV E-I values after the start of exercise. Results: Among the recruited patients, 129 (24.2%) were categorized in the convex group. There was no difference in clinical characteristics between the two groups. The Borg scale scores at the end of the CPET showed no difference. VE/VCO2 slope, its Y-intercept, and minimum VE/VCO2 showed no significant difference between the groups. In the convex group, FEV1.0/FVC was significantly lower compared to that in the non-convex group (69.4 ± 13.1 vs. 75.0 ± 9.0%). Moreover, significant correlations were observed between FEV1.0/FVC and Y-intercept (r=-0.343), as well as between the difference between minimum VE/VCO2 and VE/VCO2 slope (r=-0.478). Conclusions: The convex group showed decreased respiratory function, suggesting a potential airway obstruction during exercise. A combined assessment of the TV E-I and Y-intercept of the VE/VCO2 slope or the difference between the minimum VE/VCO2 and VE/VCO2 slopes could potentially detect COPD or airway obstruction. [ABSTRACT FROM AUTHOR]

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BACKGROUND: Antioxidant administration can significantly alleviate smoking-mediated oxidative stress. In our previous research, using a concentrated mixed juice powder led to significant reduction in oxidative status markers and improved lung function among smokers. OBJECTIVE: To compare the effectiveness of different antioxidant formulations of the retail product Juice Plus+® on oxidative status and lung function in healthy smokers via a a Bayesian Network (BN) analysis. METHODS: At baseline and after 3 months' supplementation, pulmonary function, cardiovascular risk factors, and oxidative status were assessed in 101 smokers, randomized into three groups: placebo (P), fruit/vegetable (FV), and fruit/vegetable/berry (FVB) group. BN analysis was performed via Monte Carlo simulations. Statistical significance was assigned as p < 0.05. RESULTS: No significant interaction was observed in P (network score –101.4, p = ns), whereas overall fit significantly improved in both FV (network score –185.7, p = 0.01) and FVB (–293.7, p = 0.003). Moreover, P group's respiratory parameters appeared unrelated to the biochemical structure, whereas those of the FV and, to a greater extent, FVB groups were definitely related to it CONCLUSIONS: BN analysis demonstrated that the FV and FVB formulations contain nutraceutical compounds capable of synergistically acting and improving antioxidant modulation and respiratory function in smoking subjects [ABSTRACT FROM AUTHOR]

Purpose: This study aimed to compare respiratory functions of patients after thoracoscopic lobectomy (TS) with those after thoracotomy (TR). Methods: This retrospective study was conducted in two centers, one of which adapted TS as a standard procedure in 2009 and the other performs it via TR. Data on patients who underwent lobectomy for congenital lung disease between 2009 and 2021 and underwent pulmonary function test (spirometry) were collected. Results: Ten patients underwent TS and 36 underwent TR. Distribution based on sex, prenatal diagnosis, pathological diagnosis, and resected lobe were similar between the two groups. The median [interquartile range] age at procedure in the TR group was significantly smaller than that in the TS group (13 [11–18] months versus 38 [13–79] months, P = .03). The procedure duration in the TR group was significantly shorter than that in the TS group (230 [171–264] minutes versus 264 [226–420] minutes, P = .02). Pulmonary function test was conducted at the age of eight in both groups, but the interval between the procedure, and the test was significantly shorter in the TS group (TR: 7 [5–8] years versus TS: 5 [2–7] years, P = .03). The ratio of forced vital capacity compared to predicted one (TR: 86.6 [76.6–95.3] versus TS: 88.7 [86.8–89.1], P = .58) and the ratio of forced expiratory volume in 1 second against that predicted (TR: 84.0 [80.5–88.7] versus TS: 88.7 [86.8–89.1], P = .08) were not significantly different between the two groups. Conclusions: Although TR was performed earlier than TS, respiratory function was similar between the two groups. [ABSTRACT FROM AUTHOR]

Acute respiratory distress syndrome (ARDS) is characterized by an exacerbated inflammatory response, severe damage to the alveolar-capillary barrier and a secondary infiltration of protein-rich fluid into the airspaces, ultimately leading to respiratory failure. Resolution of ARDS depends on the ability of the alveolar epithelium to reabsorb lung fluid through active transepithelial ion transport, to control the inflammatory response, and to restore a cohesive and functional epithelium through effective repair processes. Interestingly, several lines of evidence have demonstrated the important role of potassium (K+) channels in the regulation of epithelial repair processes. Furthermore, these channels have previously been shown to be involved in sodium/fluid absorption across alveolar epithelial cells, and we have recently demonstrated the contribution of KvLQT1 channels to the resolution of thiourea-induced pulmonary edema in vivo. The aim of our study was to investigate the role of the KCNQ1 pore-forming subunit of KvLQT1 channels in the outcome of ARDS parameters in a model of acute lung injury (ALI). We used a molecular approach with KvLQT1-KO mice challenged with bleomycin, a well-established ALI model that mimics the key features of the exudative phase of ARDS on day 7. Our data showed that KvLQT1 deletion exacerbated the negative outcome of bleomycin on lung function (resistance, elastance and compliance). An alteration in the profile of infiltrating immune cells was also observed in KvLQT1-KO mice while histological analysis showed less interstitial and/or alveolar inflammatory response induced by bleomycin in KvLQT1-KO mice. Finally, a reduced repair rate of KvLQT1-KO alveolar cells after injury was observed. This work highlights the complex contribution of KvLQT1 in the development and resolution of ARDS parameters in a model of ALI. [ABSTRACT FROM AUTHOR]

The impact of exercise-specific face masks (ESFMs) in aerobically fit individuals on physiological, perceptual, respiratory, and performance responses remains unclear. How ESFMs mitigate exercise-induced bronchoconstriction (EIB) is also unknown. Thus, this study aimed to determine how an ESFM altered within-exercise physiological, perceptual, respiratory, and performance responses to graded treadmill exercise. Twenty-four individuals (11 females) completed a discontinuous graded exercise test on a treadmill under two conditions (ESFM and unmasked). Physiological, respiratory function, and perceptual measures were assessed. Performance was determined by time to exhaustion. Statistical analyses included linear mixed-effects modeling, repeated measures analysis of variance, and pairwise comparisons using an alpha value of 0.05. ESFM use significantly impaired performance (median = −150.5 s) and decreased arterial oxygen saturation at maximal intensity (mean = −3.7%). Perceptions of air hunger and work of breathing were elevated across submaximal and maximal intensities. Perceived exertion and breathing discomfort were significantly elevated submaximally but not maximally. Spirometry measures were not significantly different at termination but were significantly improved at submaximal intensities in participants with and without EIB. ESFM use in fit individuals increased perceptual discomfort, impaired performance, and augmented arterial desaturation. Respiratory function improvements were observed but were accompanied by adverse perceptual sensations. Despite this, performance impairments may limit the real-world utility of ESFMs for athletes. [ABSTRACT FROM AUTHOR]

Background: Respiratory muscle training is a continuous and standardized training of respiratory muscles, but the evidence of the effects on early stroke patients is not clear. This meta-analysis aimed to investigate the effects of respiratory muscle training on respiratory function and functional capacity in patients with early stroke. Methods: PubMed, Embase, PEDro, ScienceDirect, AMED, CINAHL, and China National Knowledge Infrastructure databases were searched from inception to December 8, 2023 for articles about studies that 1) stroke patients with age ≥ 18 years old. Early stroke < 3 months at the time of diagnosis, 2) respiratory muscle training, including inspiratory and expiratory muscle training, 3) the following measurements are the outcomes: respiratory muscle strength, respiratory muscle endurance, pulmonary function testing, dyspnea fatigue score, and functional capacity, 4) randomized controlled trials. Studies that met the inclusion criteria were extracted data and appraised the methodological quality and risk of bias using the Physiotherapy Evidence Database scale and the Cochrane Risk of Bias tool by two independent reviewers. RevMan 5.4 with a random effect model was used for data synthesis and analysis. Mean differences (MD) or standard mean differences (SMD), and 95% confidence interval were calculated (95%CI). Results: Nine studies met inclusion criteria, recruiting 526 participants (mean age 61.6 years). Respiratory muscle training produced a statistically significant effect on improving maximal inspiratory pressure (MD = 10.93, 95%CI: 8.51–13.36), maximal expiratory pressure (MD = 9.01, 95%CI: 5.34–12.69), forced vital capacity (MD = 0.82, 95%CI: 0.54–1.10), peak expiratory flow (MD = 1.28, 95%CI: 0.94–1.63), forced expiratory volume in 1 s (MD = 1.36, 95%CI: 1.13–1.59), functional capacity (SMD = 0.51, 95%CI: 0.05–0.98) in patients with early stroke. Subgroup analysis showed that inspiratory muscle training combined with expiratory muscle training was beneficial to the recovery of maximal inspiratory pressure (MD = 9.78, 95%CI: 5.96–13.60), maximal expiratory pressure (MD = 11.62, 95%CI: 3.80–19.43), forced vital capacity (MD = 0.87, 95%CI: 0.47–1.27), peak expiratory flow (MD = 1.51, 95%CI: 1.22–1.80), forced expiratory volume in 1 s (MD = 0.76, 95%CI: 0.41–1.11), functional capacity (SMD = 0.61, 95%CI: 0.08–1.13), while inspiratory muscle training could improve maximal inspiratory pressure (MD = 11.60, 95%CI: 8.15–15.05), maximal expiratory pressure (MD = 7.06, 95%CI: 3.50–10.62), forced vital capacity (MD = 0.71, 95%CI: 0.21–1.21), peak expiratory flow (MD = 0.84, 95%CI: 0.37–1.31), forced expiratory volume in 1 s (MD = 0.40, 95%CI: 0.08–0.72). Conclusions: This study provides good-quality evidence that respiratory muscle training is effective in improving respiratory muscle strength, pulmonary function, and functional capacity for patients with early stroke. Inspiratory muscle training combined with expiratory muscle training seems to promote functional recovery in patients with early stroke more than inspiratory muscle training alone. Trial registration: Prospero registration number: CRD42021291918. [ABSTRACT FROM AUTHOR]

Respiratory health is a critical determinant of athletic performance, and the utilization of restorative strategies, such as strategic napping, may offer a competitive edge to athletes. This study investigates the effects of nap duration on the respiratory function of young elite athletes who have achieved top rankings national competitions. Participants engage in three test sessions with varying nap durations: no nap (N0), a 25-minute nap (N25), and a 45-minute nap (N45), with a minimum 72-hour interval between sessions. Respiratory parameters including Forced Vital Capacity (FVC), Forced Expiratory Volume in one second (FEV1), FEV1/FVC ratio, Peak Expiratory Flow rate (PEF), Forced Expiratory Flow at 25–75% of FVC (FEF25-75%), and Forced Expiratory Time (FET) are assessed. Results reveal a significant enhancement in PEF values following a 45-minute nap (N45) compared to the no-nap control (N0) [F1 − 11=7.356, p =.004, ηp2 = 0.401, (95% CI for difference: -1.56 to − 0.056)], indicating a potential positive influence of napping on maximum expiratory flow rate and, consequently, athletes' respiratory performance. While no significant changes are observed in other respiratory parameters across different nap durations, these findings underscore the potential benefits of strategic napping in optimizing respiratory health in young elite athletes. [ABSTRACT FROM AUTHOR]

Background and purpose: Respiratory insufficiency and its complications are the main cause of death in amyotrophic lateral sclerosis (ALS). The impact of diabetes mellitus (DM) on respiratory function of ALS patients is uncertain. Methods: A retrospective cohort study was carried out. From the 1710 patients with motor neuron disease followed in our unit, ALS and progressive muscular atrophy patients were included. We recorded demographic characteristics, functional ALS rating scale (Amyotrophic Lateral Sclerosis Functional Rating Scale–Revised [ALSFRS‐R]) and its subscores at first visit, respiratory function tests, arterial blood gases, phrenic nerve amplitude (PhrenAmpl), and mean nocturnal oxygen saturation (SpO2mean). We excluded patients with other relevant diseases. Two subgroups were analysed: DIAB (patients with DM) and noDIAB (patients without DM). Independent t‐test, χ2, or Fisher exact test was applied. Binomial logistic regression analyses assessed DM effects. Kaplan–Meier analysis assessed survival. p < 0.05 was considered significant. Results: We included 1639 patients (922 men, mean onset age = 62.5 ± 12.6 years, mean disease duration = 18.1 ± 22.0 months). Mean survival was 43.3 ± 40.7 months. More men had DM (p = 0.021). Disease duration was similar between groups (p = 0.063). Time to noninvasive ventilation (NIV) was shorter in DIAB (p = 0.004); total survival was similar. No differences were seen for ALSFRS‐R or its decay rate. At entry, DIAB patients were older (p < 0.001), with lower forced vital capacity (p = 0.001), arterial oxygen pressure (p = 0.01), PhrenAmpl (p < 0.001), and SpO2mean (p = 0.014). Conclusions: ALS patients with DM had increased risk of respiratory impairment and should be closely monitored. Early NIV allowed for similar survival rate between groups. [ABSTRACT FROM AUTHOR]

Background and purpose: In amyotrophic lateral sclerosis (ALS), phrenic nerve (PN) atrophy has been found, whereas there is controversy regarding vagus nerve (VN) atrophy. Here, we aimed to find out whether PN atrophy is related to respiratory function and 12‐month survival. Moreover, we investigated the relevance of VN and spinal accessory nerve (AN) atrophy in ALS. Methods: This prospective observational monocentric study included 80 adult participants (40 ALS patients, 40 age‐ and sex‐matched controls). The cross‐sectional area (CSA) of bilateral cervical VN, AN, and PN was measured on high‐resolution ultrasonography. Clinical assessments included the Amyotrophic Lateral Sclerosis Functional Rating Scale–Revised (ALSFRS‐R), the Non‐Motor Symptoms Questionnaire, and handheld spirometry of forced vital capacity (FVC). One‐year survival was documented. Results: The CSA of each nerve, VN, AN, and PN, was smaller in ALS patients compared to controls. VN atrophy was unrelated to nonmotor symptom scores. PN CSA correlated with the respiratory subscore of the ALSFRS‐R (Spearman test, r = 0.59, p < 0.001), the supine FVC (r = 0.71, p < 0.001), and the relative change of sitting–supine FVC (r = −0.64, p = 0.001). Respiratory impairment was predicted by bilateral mean PN CSA (p = 0.046, optimum cutoff value of ≤0.37 mm2, sensitivity = 92%, specificity = 56%) and by the sum of PN and AN CSA (p = 0.036). The combination of ALSFRS‐R score with PN and AN CSA measures predicted 1‐year survival with similar accuracy as the combination of ALSFRS‐R score and FVC. Conclusions: Ultrasonography detects degeneration of cranial nerve motor fibers. PN and AN calibers are tightly related to respiratory function and 1‐year survival in ALS. [ABSTRACT FROM AUTHOR]

Introduction: Arterial blood gas analysis is the gold standard for the assessment of oxygenation, ventilation, and metabolic status in dogs; however, its execution is difficult and painful. Therefore, venous blood gas analysis is used in its replacement for the assessment of the metabolic status, but it is not clear whether it can be used to assess respiratory function, too. This study aimed at: 1) comparing jugular and saphenous pH and partial pressure of carbon dioxide (pCO2) with the correspondent arterial pH and pCO2 (paCO2) in healthy dogs during general anesthesia; 2) clarifying whether the arterial-venous relationship is better expressed in jugular or saphenous blood samples; 3) mathematically transforming venous pCO2 (pvCO2) and evaluating whether the calculated values more accurately agree with paCO2. Methods: Ninety dogs were included and randomly divided into three groups: Group 1 - arterial vs jugular; Group 2 - arterial vs saphenous; Group 3 - arterial vs jugular vs saphenous blood gases. Each group counted 30 dogs. Pearson correlations were calculated. Bland-Altman plots were generated to describe the agreement between venous and arterial values; clinical limits for pH and pCO2 set by the authors were, respectively, ± 0.1 and ± 2.5 mmHg. Univariate linear regression was applied for predicting paCO2 from pvCO2. Results: Saphenous samples showed strong positive correlations with arterial samples for both pCO2 and pH. Pearson r values were stronger for pH than for pCO2. Bland-Altman plots showed good agreement between venous and arterial pH, and poor agreement between pvCO2 and paCO2 for both jugular and saphenous samples. Results suggested that saphenous pvCO2 is preferable with respect to jugular as predictor of paCO2. The transformation of saphenous pvCO2 through univariate linear regression produced a model for predicting paCO2; a Bland-Altman plot assessed the transformed pvCO2 agreement with paCO2. Discussion: In healthy, anesthetized, mechanically ventilated dogs, variations of pH between venous and arterial values are clinically acceptable. Venous and arterial blood gases cannot be interchanged for the evaluation of pCO2. Saphenous pvCO2 is to be preferable to jugular pvCO2 as predictor of paCO2. A formula for the estimation of predicted paCO2 from saphenous pvCO2 is proposed. [ABSTRACT FROM AUTHOR]

Background: There is a paucity of data on effects of long-term meditation on respiration. This systematic review summarized selected respiratory function parameters in healthy long-term meditators (LTMs) at rest, during meditation and their associations with meditation practice variables. Methods: A systematic search of PubMed, EMBASE (Ovid), Scopus, Proquest Dissertation and Thesis Global databases, CENTRAL, and Google Scholar was performed from year 1950 to August 15th, 2023. Keywords "meditation," "long-term meditation," and respiratory/pulmonary/lung function and spirometry were used. Controlled-trials and observational studies exploring respiratory parameters in healthy LTMs published in English were included. Two independent reviewers selected studies, extracted data, and assessed the quality of the evidence. The Joanna-Briggs Institute Critical Appraisal Tools and the Single-Case Reporting Guideline In BEhavioural Interventions Statement were used to assess the methodological quality of the included studies. This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Effect estimates of some outcomes were synthesized using alternative methods and data for other outcomes synthesized narratively as a meta-analysis was not possible. Results: Nine studies comprising 3 case–control, 3 cross-sectional, and 3 single-subject study designs, involving 433 participants that met the eligibility criteria, were included. Two studies reported slower resting RR among LTMs compared to controls [SMD = − 2.98, 95% CI (− 4.48 to − 1.47), overall-effect (z-score) = 3.88 (p < 0.001), I2 = 69%] with similar trend reported in the third study (MD = − 1.6, p = 0.053). Three studies reported slower RR in LTMs during meditation compared to baseline. Slower resting RR and mean RR change during meditation compared to baseline significantly negatively associated with meditation experience. PEFR was significantly higher in LTMs than controls [MD = 1.67, 95% CI (0.19–3.15), z-score = 2.21 (p = 0.03)]. No significant difference was observed in tidal volume [SDM = 0.93, 95% CI (− 1.13 to 2.99), z-score = 0.89 (p = 0.37), I2 = 96%] and vital capacity [SDM = 1.25, 95% CI (− 0.45 to 2.95), z-score = 1.44 (p = 0.15), I2 = 94%] of LTMs compared to controls. Conclusions: Long-term meditation appears to be associated with slower baseline RR, and immediate reduction in RR during meditation, where greater practice amplifies the effects. Evidence on spirometry parameters in LTMs with ≥ 3 years of practice was limited. [ABSTRACT FROM AUTHOR]

Objective: Engaging in outdoor cycling, particularly within cold and arid environments, frequently precipitates dryness in the laryngeal mucosa and induces various supraglottic disorders. Such conditions hold the potential to detrimentally impact respiratory system efficiency. This study principally sought to elucidate the influence of supraglottic and upper airway disorders on the the results of spirometry flow-volume measurements of road cyclist. Methods and Materials: This investigation encompassed seventy-two professional and elite road cyclists, comprising 22 females and 50 males, with an average age of 22 years and a Body Mass Index (BMI) of 21.95(±0.02) kg/m². Utilizing stroboscopic examinations, supraglottic conditions including Sicca, Tension, Edema, and Gastroesophageal Reflux Disease were assessed. Concurrently, respiratory capacity was evaluated through spirometric tests, encompassing Forced Vital Capacity [FVC], Forced Expiratory Volume in the first second [FEV1], Tidal Volume [VT], Maximum Vital Capacity [VC MAX], Mean Mid-Expiratory Flow [MMEF (FEF25-75)], Peak Expiratory Flow [PEF], and Controlled Mechanical Volume Ventilation [cMVV]. Analysis of Variance (ANOVA) was employed to analyze the relationship between stroboscopic and spirometric findings, additionally exploring correlations between the two. A backward method in regression analysis was used, with Edema (ED), Gastroesophageal Reflux Disease (GERD), Dry Laryngeal Mucosa (Sicca), and Tension (TE) serving as predictor variables against spirometric outcomes. Results: Predominantly, participants exhibited low levels of ED, GERD, Sicca, and TE. No substantial correlation emerged between ED, GERD, TE, and any spirometric indices (p-value > 0.05). However, a notable relationship was observed between Sicca and the MMEF index (p-value < 0.05). Regression analysis revealed significant outcomes for independent variables impacting VT and MEF25, with GERD negatively influencing VT in a statistically significant manner. Likewise, GERD's effect on the MEF25 variable was both negative and significant. Conclusion: Based on the findings, it seems that supraglottic disorders negatively affect the efficiency of the respiratory system in cyclists. Therefore, it is recommended that cyclists consider the necessary evaluations to check the supraglottis in order to improve their performance during training and competitions. [ABSTRACT FROM AUTHOR]

The present study aimed to evaluate forced expiration based on transverse abdominis (TrA) stiffness by identifying the relationship between TrA stiffness and peak expiratory flow (PEF) in both younger and older adults. We also assessed the relationship between diaphragm thickness and PEF. A total of 31 younger (21.24 ± 2.73 years) and 34 older (71.35 ± 5.26 years) adults were included in the present study. TrA muscle stiffness was measured at rest and during abdominal bracing using shear wave elastography. Diaphragm thickness was measured during deep inspiration and expiration using B‐mode ultrasound, and respiratory function was assessed by measuring PEF using a spirometer. We found that TrA stiffness during bracing was significantly lower in older than younger adults (p < 0.05). Similarly, the difference in absolute stiffness of the TrA when bracing versus at rest was significantly lower in older than younger adults (p < 0.05). Additionally, TrA stiffness during bracing was positively associated with PEF in the younger group (r = 0.483), while a very weak correlation was found in the older group (r = 0.172). Similarly, PEF was moderately correlated with diaphragm thickness during expiration as well as during changes between inspiration and expiration in the younger group (r = 0.405 and r = 0.403); however, no significant correlation was found in the older group. These findings of the present study indicate that the variations in PEF between younger and older adults may be due to age‐associated changes in the musculoskeletal structure and muscle fibre type. [ABSTRACT FROM AUTHOR]

Background: This descriptive study aimed to assess preoperative pulmonary function test (PFT) results and pulse oximetry readings in patients recovered from COVID-19 who were candidates for elective surgery. Materials and Methods: This is a descriptive study. A total of 110 patients (men = 51) with a mean age of 52.6 years were enrolled in the study. The study protocol was presented to the ethics committee and received approval. Participants included patients with a positive SARS-CoV-2 PCR test history, with a recovery period of at least 6-8 weeks for symptomatic patients and four weeks for asymptomatic patients. Data collection involved a random selection, obtaining informed consent, and conducting a history and physical examination. Pulmonary function capacity and oxygen saturation were assessed, and frailty was evaluated using the Edmonton Frail Scale. Echocardiography and electrocardiography were performed on all patients. Results: The study participants mainly underwent trans-ureteral lithotripsy (TUL), laparoscopic cholecystectomy (LC), and percutaneous nephrolithotomy (PCNL). Symptomatic patients exhibited lower pulse oximetry readings than asymptomatic patients (91.18% vs. 96.13%, p-value = 0.005). Although the average ejection fraction was slightly lower in symptomatic patients (44.25%) compared to asymptomatic patients (48.18%), the difference was insignificant. Symptomatic patients also had higher rates of abnormalities in chest X-rays, electrocardiograms, pulmonary function tests, and fasting blood sugar levels, as well as a higher rate of ICU admission. Conclusion: Comprehensive preoperative evaluations, including pulmonary function and oxygenation assessment, are crucial for COVID-19 survivors undergoing elective surgery. Symptomatic patients showed lower pulse oximetry readings and higher respiratory and cardiovascular abnormalities rates. These findings emphasize the importance of optimizing perioperative management and minimizing complications by thoroughly assessing patients' preoperative health status. [ABSTRACT FROM AUTHOR]

Background: The prediction of postoperative respiratory function is necessary in identifying patients that are at greater risk of complications. There are not enough studies on the effect of the diaphragm on postoperative respiratory function prediction in lung cancer surgical patients. The objective of this study is to estimate the precision of machine learning methods in the prediction of respiratory function in the immediate postoperative period and how diaphragm function contributes to that prediction. Materials and methods: Our prospective study included 79 patients who underwent lung cancer surgery. Diaphragm function was estimated by its mobility measured both ultrasonographically and radiographically and by noninvasive muscle strength tests. We present a new machine learning multilayer regression metamodel, which predicts FEV1 for each patient based on preoperative measurements. Results: The proposed regression models are specifically trained to predict FEV1 in the immediate postoperative period and were proved to be highly accurate (mean absolute error in the range from 8 to 11%). Predictive models based on resected segments give two to three times less precise results. Measured FEV1 was 44.68% ± 14.07%, 50.95% ± 15.80%, and 58.0%1 ± 14.78%, and predicted postoperative (ppo) FEV1 was 43.85% ± 8.80%, 50.62% ± 9.28%, and 57.85% ± 10.58% on the first, fourth, and seventh day, respectively. By interpreting the obtained model, the diaphragm contributes to ppoFEV1 13.62% on the first day, 10.52% on the fourth, and 9.06% on the seventh day. Conclusion: The machine learning metamodel gives more accurate predictions of postoperative lung function than traditional calculations. The diaphragm plays a notable role in the postoperative FEV1 prediction. [ABSTRACT FROM AUTHOR]

Copyright of GeSec: Revista de Gestao e Secretariado is the property of Sindicato das Secretarias e Secretarios do Estado de Sao Paulo (SINSESP) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

COVID-19 typically presents with flu-like symptoms due to the viral infection itself. The most severe cases are characterised by lung damage, an important factor in fatal outcome due to alveolar damage. In some cases, patients develop a long COVID with persistent symptoms of chest pain and fatigue. Causes, including organ damage or inflammation, are being investigated. Clinical outcomes are variable and permanent lung damage is not fully understood, while vaccination is effective against severe infection but its effect on respiratory function in mild cases remains uncertain. This retrospective study aims to analyse changes in lung function in HCWs who had COVID-19 between 2020 and 2022, comparing their spirometric test results before and after the pandemic and taking into account their vaccination status. 321 HCWs were included in the study. The study examined spirometric parameters both before and after the pandemic, and all measured outcomes except the FEV1/FVC ratio showed a significant decrease during the study period. We then assessed the association between SARS-CoV-2 infection and changes in lung function parameters, analysing infections in 2020, 2021 and 2022 separately. We found a statistically significant difference in Forced vital capacity (FVC) between infected and non-infected subjects in 2020 and 2021, but not in 2022. To evaluate the protective effect of SARS-CoV-2 vaccination on respiratory function, a linear regression analysis was performed using changes in FVC, Forced expiratory volume in 1 s (FEV1), FVC/FEV1 ratio and Peak expiratory flow (PEF) as dependent variables. The analysis showed that the decline in FVC was significantly lower in subjects who had been vaccinated prior to infection. The study concludes that subclinical SARS-CoV-2 infections in 2020 and 2021 worsened respiratory parameters (FVC and FEV1), but vaccination protected against these effects. Even healthy individuals with previous infections showed respiratory changes, with vaccination providing protection, especially for FVC decline. This highlights the importance of vaccinating healthcare workers against COVID-19. [ABSTRACT FROM AUTHOR]

Background Pleura integrity is a significant parameter influencing the outcomes in conventional cardiac surgery interventions. The impact of pleural integrity preservation in minimally invasive surgery is still not widely investigated. This study aims to define the role of pleural integrity preservation (PPI) on short and long-term outcomes after minimally-invasive aortic valve replacement (MIAVR). METHODS Data from 2430 consecutive patients who underwent MIAVR between 1997-2022 were retrospectively collected. Patients were divided into two groups: patients with PPI versus not-pleura integrity preservation (not-PPI). PPI has considered the maintenance of the pleura closed without the need for a chest tube insertion at the end of the surgical procedure. The not-PPI group included patients treated by right anterior Mini-Thoracotomy (824) or Ministernotomy (154) requiring surgical pleural drainage. A propensity-matched analysis was used to compare the two groups (not-PPI vs PPI). The main outcome was all-cause incidence of postoperative respiratory complications. RESULTS After propensity-matching, 848 patients were included in each group (PPI and not-PPI). Mean followup time was 147.4 months. Post-operatively, not-PPI vs PPI patients had a longer intensive care unit stay (hours) (9.7 vs 17.3, p= 0.00003, respectively), and hospital length of stay (LOS) (days) (5.2 vs 8.9, p= 0.00002, respectively). The rate of respiratory complications, including incidence of pneumothorax and/or subcutaneous emphysema, pulmonary atelectasis, and pleural effusion events requiring thoracentesis/drainage, was significantly higher in the not-PPI vs PPI group. Thirty-day all-cause mortality was higher in not-PPI vs PPI (0.029 vs 0.010, p= 0.0028, respectively), (Table 1). CONCLUSIONS Not-PPI after MIAVR was associated with an increased incidence of postoperative complications, and increased LOS compared to PPI. Even long term survival was significantly better in the PPI group. Particularly, the not-PPI approach increased 4 folds the probability of long-term mortality. Therefore, a MIAVR-tailored patient-procedure approach to maintaining the pleura integrity seems positively impacts short- and long-term outcomes. [ABSTRACT FROM AUTHOR]

The purpose of this study was to clarify changes in cough function in patients with multiple system atrophy (MSA). Seventeen probable patients with MSA were studied. Peak cough flow (PCF), respiratory function (percentage of vital capacity, percentage of forced vital capacity, and percentage of predicted forced expiratory volume in one second), respiratory muscle strength (percentage of maximal inspiratory mouth pressure and percentage of maximal expiratory mouth pressure), and maximum phonation time (MPT) were assessed. Walking ability, disease duration, possibility of air stacking, Unified MSA Rating Scale (UMSARS), and Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III were also assessed. Data were separately analyzed for ambulatory and non-ambulatory groups categorized by Functional Ambulation Categories. PCF, respiratory function, respiratory muscle strength, and MPT were significantly lower in the non-ambulatory group than in the ambulatory group. On the other hand, no correlation between PCF and disease duration was observed. A significant number of patients in the non-ambulatory group were unable to hold their breath. The UMSARS and MDS-UPDRS Part III in the non-ambulatory group were significantly higher than in the ambulatory group. It was concluded that ambulatory dysfunction is associated with the decline of cough function and respiratory-related function in patients with MSA. [ABSTRACT FROM AUTHOR]

Background and objectives: This study investigates the effects of chest mobilization and breathing exercises on respiratory function, trunk stability, and endurance in chronic stroke patients who have contracted coronavirus disease (COVID-19). Materials and Methods: Thirty inpatients of a tertiary hospital in South Korea, who had a history of COVID-19 and were diagnosed with stroke within the last 6 months, were randomly assigned to either chest mobilization exercise with breathing exercise (CMEBE) or conservative physical therapy with breathing exercise (CPTBE) groups. The respiratory function, trunk stability, and endurance were measured at baseline and 6 weeks after the interventions. Results: Both CMEBE and CPTBE groups showed improvements in respiratory function, trunk stability, and endurance after the intervention (p < 0.05). However, the CMEBE group showed significantly greater improvements in forced expiratory volume in 1 s (p < 0.05), trunk stability (p < 0.05), and endurance (p < 0.05) than the CPTBE group. No significant intergroup difference was observed in forced vital capacity and peak expiratory flow. Conclusions: The combination of chest mobilization and breathing exercises improved respiratory muscle mobility and endurance, stabilized the trunk, and enhanced balance and the transfer of weight. The findings suggest that this intervention could be beneficial in improving respiratory function and endurance in stroke patients. [ABSTRACT FROM AUTHOR]

Copyright of Biology Teaching is the property of East China Normal University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aim: Chronic abruption‐oligohydramnios sequence (CAOS), which is characterized by vaginal bleeding and oligohydramnios, adversely affects the lungs of fetuses due to bloody amniotic fluid and oligohydramnios. The criteria for termination of pregnancy remain controversial. This study aimed to examine respiratory function in infants within 3 years after birth and risk factors for respiratory prognosis, and to clarify the management of CAOS. Methods: This study is a case series of patients with CAOS managed at our institution between 2010 and 2020. The clinical data of the patients and their infants within 3 years after birth were reviewed. The amniotic fluid volume was measured using the maximum vertical pocket (MVP). Results: Six of 17 neonates (35.3%) used inhaled nitric oxide (iNO) to improve oxygenation. Women with longer periods of MVP <1 cm delivered more neonates using iNO; however, periods of MVP <2 cm were not associated with iNO use. Almost half of the infants required home oxygen therapy when discharged, regardless of amniotic fluid volume. At 18 months corrected age, only one child needed respiratory support, and the others discontinued. Two neonates, both born at 23 weeks of gestational age, died within 1 month after birth because of extremely preterm birth. Conclusions: The amniotic fluid volume could predict the use of iNO in neonates, but it did not affect the child's respiratory function after the newborn period. Almost all children born to women with CAOS can improve their respiratory function as they grow up. [ABSTRACT FROM AUTHOR]

We performed a comparative analysis of respiratory function and hemodynamics among patients with Acquired Immunodeficiency Syndrome (AIDS)-associated respiratory failure and those with non-AIDS-associated respiratory failure.Methods: Data were collected from critically ill patients diagnosed with Acquired Immunodeficiency Syndrome who were admitted to the Intensive Care Unit (ICU) of Beijing Ditan Hospital, affiliated with Capital Medical University, between January 1, 2019, and December 31, 2019. We simultaneously gathered data from non-AIDS patients admitted to the ICU of Beijing Liangxiang Hospital within the same timeframe. A comparative study was performed to analyze clinical data from these two patient groups, encompassing parameters related to respiratory mechanics and hemodynamic indicators.Results: A total of 12 patients diagnosed with Acquired Immunodeficiency Syndrome (AIDS) and experiencing respiratory failure, along with 23 patients with respiratory failure independent of AIDS, were included in our study. Subsequently, a comparative analysis of clinical information was conducted between the two patient cohorts. Our findings demonstrate non-statistically significant differences between the two patient groups when assessing various indicators, encompassing peak airway pressure, plateau pressure, mean pressure, compliance, oxygenation index, and arterial partial pressure of carbon dioxide (P> 0.05). Additionally, the comparison of multiple indicators encompassing mean arterial pressure, central venous pressure, cardiac output index, intrathoracic blood volume index, global end-diastolic volume index, extravascular lung water content, and pulmonary vascular permeability index revealed no statistically significant differences between the two patient groups (P> 0.05). Ultimately, the Galileo respiratory system was utilized to assess the pressure-volume (P-V) curve of the experimental cohort, revealing a consistent and seamless trajectory devoid of noticeable points of inflection.Conclusion: No statistically significant differences were found in the respiratory function and hemodynamic profiles between patients diagnosed with AIDS presenting respiratory failure and those experiencing respiratory failure unrelated to AIDS. Additionally, the pressure-volume curve of individuals diagnosed with AIDS presenting respiratory failure displayed a seamless and uninterrupted trajectory devoid of discernible points of inflection. Hence, there might be constraints when utilizing P-V curve-based adjustments for positive end-expiratory pressure (PEEP) during mechanical ventilation in individuals diagnosed with AIDS presenting respiratory failure. [ABSTRACT FROM AUTHOR]