scholarly journals Development Portable Spirometer using MPXV7002DP Sensor and TFT Display for Lung Disease Detection.

Author(s):  
Lizarazu Maulidil Li Kharis ◽  
Andjar Pudji ◽  
Priyambada Cahya Nugraha

Chronic obstructive pulmonary disease (COPD) is a disease whose prevalence tends to increase annually, with the World Health Organization (WHO) data predicting in 2020 the disease is the cause of the third-highest mortality worldwide. The assessment of the recurrence of COPD patients is very important, as it will accelerate the decline of lung function and health status. The purpose of this research is to design a spirometer by utilizing the MPXV7002DP sensor and equipped with a graphical display as well as lung health status on the Nextion TFT LCD.  A portable Spirometer design has been done using the MPXV7002DP pressure sensor out as a transducer with a display on the Nextion TFT LCD. The design aims to determine the health of lung function by knowing the volume of lung Forced Vital Capacity (FVC), Forced Expired Volume in one second (FEV1), and Vital Capacity (VC). The working principle of this tool is to process the pressure from the results of the user blowing to the sensor through a mouthpiece which is designed based on Venturimeter law, the data will be processed by the Arduino microcontroller 2560 to be displayed on the LCD TFT and Nextion stored in SD card memory. The result of module validation data against a Spirometer 3L calibrator Benchmarking tool was obtained 1.58% VC error. The value is still below the 5% error tolerance limit so that the VC parameters in the secure module is used.

2015 ◽  
Vol 46 (3) ◽  
pp. 663-670 ◽  
Author(s):  
Cornelia Meffert ◽  
Isaak Hatami ◽  
Carola Xander ◽  
Gerhild Becker

Chronic obstructive pulmonary disease (COPD) is a growing cause of morbidity and mortality worldwide. However, many patients with severe COPD do not receive adequate palliative care. The main goals of our study were to identify the percentage of hospital patients with palliative care needs, particularly those who suffer from COPD.Data were collected prospectively from inpatients at the University Medical Centre Freiburg (Freiburg, Germany). Based on the World Health Organization definition of palliative care, the treating physician reported for each patient discharged whether the patient had palliative care needs or not. Data from 39 849 patients could be analysed, of which 1455 were suffering from COPD.Of all COPD patients, 9.1% had palliative care needs. In COPD patients with palliative care needs, hospital stay was significantly longer (13.7 versus 10.3 days) than in the group without palliative care needs, and significantly more patients died during their hospital stay (8.3% versus 3.7%). The presence of metastases was the highest risk factor for developing palliative care needs (OR 4.18). Furthermore, a main diagnosis of COPD implied an increased probability of palliative care needs (OR 1.87).Our results show that COPD patients have a high risk of developing palliative care needs. Further efforts are required to provide palliative care to COPD patients.


Author(s):  
SALVA FATIMA HEBA ◽  
SYED AAMIR ALI ◽  
MOHAMMED ALEEMUDDIN NAVEED ◽  
SALWA MEHRIN ◽  
MAARIA GULNAAZ ◽  
...  

Objectives: The objectives of the study were to estimate the relative impact of triple therapy on lung function, health status, and mortality risk compared with combination inhaled corticosteroid (ICS)/long-acting β-agonist (LABA) therapy in symptomatic chronic obstructive pulmonary disease (COPD) patients with frequent exacerbations in an Indian clinical population. Methodology: The GLIMPSE (Lung Function, Health Status, and Mortality Risk Assessment in COPD using Triple Therapy) was as a prospective, parallel design, single-center observational study comparing 24 weeks of triple therapy (twice-daily combination of budesonide [BUD]-formoterol [FOR] [100/6 μg] and once-daily tiotropium [TIO] [9 μg]) with ICS/LABA (twice daily BUD-FOR [100/6 μg]). The primary outcome was the mean change in forced expiratory volume in the 1st s (FEV1%) predicted and COPD assessment test total score from baseline at week 24. Secondary outcomes were variation in dyspnea grade and BODE total score from baseline. Results: At week 24 in triple therapy (n=70) and ICS/LABA therapy (n=70), mean difference from baseline in FEV1% predicted were 5.40 (95% confidence interval [CI]: 1.29–9.50) and 1.90 (95% CI: –1.87–5.68) respectively, and mean difference in CAT total score from baseline was –5.10 units (95% CI: –3.49–−6.71) and –1.80 units (95% CI: –0.052–−3.548), respectively. In addition, there was a statistically significant reduction in dyspnea grading and BODE score with comparable adverse events in both groups. Conclusion: Overall, the results favored triple therapy over dual therapy in advanced symptomatic COPD patients.


2018 ◽  
Vol 8 (1) ◽  
pp. 27 ◽  
Author(s):  
Ingrid Augustin ◽  
Emiel Wouters ◽  
Sarah Houben-Wilke ◽  
Swetlana Gaffron ◽  
Daisy Janssen ◽  
...  

The degree of lung function is frequently used as referral criterion for pulmonary rehabilitation. The efficacy of pulmonary rehabilitation was assessed in 518 chronic obstructive pulmonary disease (COPD) patients, after clustering based on a comprehensive pre-rehabilitation lung function assessment. Mean improvements in dyspnea, exercise performance, health status, mood status and problematic activities of daily life after pulmonary rehabilitation were mostly comparable between the seven clusters, despite significant differences in the degree of lung function. The current study demonstrates no significant relationship between the seven lung-function-based clusters and response to pulmonary rehabilitation. Therefore, baseline lung function cannot be used to identify those who will respond well to pulmonary rehabilitation, and moreover, cannot be used as a criterion for referral to pulmonary rehabilitation in patients with COPD.


2018 ◽  
Vol 52 (1) ◽  
pp. 1800360 ◽  
Author(s):  
Joan B. Soriano ◽  
Sarah J. Lucas ◽  
Rupert Jones ◽  
Marc Miravitlles ◽  
Victoria Carter ◽  
...  

α1-antitrypsin deficiency (AATD) significantly increases the risk of developing chronic obstructive pulmonary disease (COPD), and testing of all COPD patients for AATD is recommended by the World Health Organization, European Respiratory Society and Global Initiative for Chronic Obstructive Lung Disease (GOLD). We aimed to determine trends for testing and diagnosing AATD from 1990 to 2014.This study analysed all patients diagnosed with COPD from about 550 UK Optimum Patient Care Research Database general practices, including a subgroup of those diagnosed before the age of 60 years.We identified 107 024 COPD individuals, of whom 29 596 (27.6%) were diagnosed before 60 years of age. Of them, only 2.2% (95% CI 2.09–2.43%) had any record of being tested for AATD. Of those tested, 23.7% (95% CI 20.5–27.1%) were diagnosed with AATD. Between 1994 and 2013 the incidence of AATD diagnosis generally increased. A diagnosis of AATD was associated with being male, being an ex-smoker, more severe COPD with a lower forced expiratory volume in 1 s % pred and higher GOLD 2017 stages (all p<0.05).Despite an increase in the frequency of AATD testing since 1990, only 2.2% of patients diagnosed with COPD before the age of 60 years were tested. AATD prevalence was 23.7% in those tested. Thus, it appears that AATD remains markedly underdiagnosed in COPD patients.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ying Liu ◽  
Jiawei Xu ◽  
Tian Liu ◽  
Jinxiang Wu ◽  
Jiping Zhao ◽  
...  

Abstract Background Cigarette smoke (CS) is a major risk factor for Chronic Obstructive Pulmonary Disease (COPD). Follistatin-like protein 1 (FSTL1), a critical factor during embryogenesis particularly in respiratory lung development, is a novel mediator related to inflammation and tissue remodeling. We tried to investigate the role of FSTL1 in CS-induced autophagy dysregulation, airway inflammation and remodeling. Methods Serum and lung specimens were obtained from COPD patients and controls. Adult female wild-type (WT) mice, FSTL1± mice and FSTL1flox/+ mice were exposed to room air or chronic CS. Additionally, 3-methyladenine (3-MA), an inhibitor of autophagy, was applied in CS-exposed WT mice. The lung tissues and serum from patients and murine models were tested for FSTL1 and autophagy-associated protein expression by ELISA, western blotting and immunohistochemical. Autophagosome were observed using electron microscope technology. LTB4, IL-8 and TNF-α in bronchoalveolar lavage fluid of mice were examined using ELISA. Airway remodeling and lung function were also assessed. Results Both FSTL1 and autophagy biomarkers increased in COPD patients and CS-exposed WT mice. Autophagy activation was upregulated in CS-exposed mice accompanied by airway remodeling and airway inflammation. FSTL1± mice showed a lower level of CS-induced autophagy compared with the control mice. FSTL1± mice can also resist CS-induced inflammatory response, airway remodeling and impaired lung function. CS-exposed WT mice with 3-MA pretreatment have a similar manifestation with CS-exposed FSTL1± mice. Conclusions FSTL1 promotes CS-induced COPD by modulating autophagy, therefore targeting FSTL1 and autophagy may shed light on treating cigarette smoke-induced COPD.


Author(s):  
Winny W ◽  
Siti Chandra Widjanantie ◽  
Maryastuti M ◽  
Nury Nusdwinuringtyas

Background: Chronic Obstructive Pulmonary Disease (COPD) patients experienced respiratory muscledysfunction, postural instability, and decreasing in health status. Abdominal drawing-in maneuver (ADIM) hasbeen studied in many cases of low back pain for lumbar stabilization, moreover this maneuver is also designedto activate the transversus abdominalis (TA) muscle that involved in expiration. But this exercise has not beenconsidered as a respiration exercise in COPD patients. The purpose of this study was to determine whether theapplication of ADIM to COPD patients would affect the strength of respiratory muscle, improve core musclestability, and health status of COPD patients.Methods:All clinically stable COPD patients who visited PMR clinic at Persahabatan General Hospital wererecruited in the study. They received exercise interventions 2 times a week for 4 weeks. ADIM as a mainprogram is using pressure transducer (Chattanooga, Australia). Each exercise was held 10 repetitions, 10 setswith 2 minutes rest. Strength of respiratory muscle measured by peak cough flow (PCF) and peak flow rate(PFR). Core muscle stability measured by functional reach test (FRT) and the health status measured with CATscore. The measurements were done before and immediately after intervention.Results: Subjects were 8 patients with mean age 62 years old, consisted of 7 men and 1 woman, with 1 patienteach with COPD grade A, B, and C, and 5 patients with COPD grade D. There were increasing of PCF (268.75± 59.146 L/min to 285.00 ±59.522 L/min; p=0.061), PFR (251.3±96.3 L/min to 286.3±92 L/min; p=0.028),FRT (20.2±3.8 cm to 22±3.9 cm; p=0.011), and decreasing of CAT score (14 ±8.685 to 11.50 ±8.848; p=0.027)after ADIM.Conclusion: There were an improvement in respiratory muscle, trunk stability, and CAT after ADIM, so themaneuver is effective for COPD management.Keywords: Abdominal drawing-in maneuver (ADIM), Chronic Obstructive Pulmonary Disease (COPD),COPD Assessment Test (CAT), Functional reach test (FRT), Peak cough flow (PCF), Peak flow rate (PFR)


2020 ◽  
Vol 7 (2) ◽  
pp. e25-e25
Author(s):  
Rojin Chegini ◽  
Alireza Bolurian ◽  
Zahra Mojtahedi ◽  
Masoud Hafizi

In December 2019, cases of pneumonia with an unknown pathogen were reporting in Wuhan city, China. The World Health Organization (WHO) recognized it as a pandemic, on March 11, 2020. The most frequent site of involvement is the respiratory system. The most common symptoms include cough, fatigue and fever. In some cases, neurological, respiratory and gastrointestinal complications can lead to death. Inflammatory cytokines can play a major role in pathogen damage. Due to the pandemic of COVID-19 and its severe complications, it is critical to identify the high-risk groups. Since this disease has a rapid transmission, following the instructions announced by the WHO, prevention is vital, especially in people with risk factors for disease complications and mortality. According to the latest reports by CDC (Center for Disease Control and Prevention), older age and having some medical conditions such as smoking, obesity (BMI ≥30 kg/m2 ), chronic obstructive pulmonary disease (COPD), heart disease, cancer, solid organ transplant, type 2 diabetes mellitus, chronic renal failure, and sickle cell anemia in younger adults are known disease severity risk factor.


2020 ◽  
Author(s):  
Iva Hlapčić ◽  
Andrea Hulina-Tomašković ◽  
Marija Grdić Rajković ◽  
Sanja Popović-Grle ◽  
Andrea Vukić Dugac ◽  
...  

Abstract Background: Extracellular heat shock protein 70 (eHsp70) acts like a damage-associated molecular pattern (DAMP) and it might modulate immune responses in patients with chronic obstructive pulmonary disease (COPD). The aim of the study was to explore plasma eHsp70 concentration in patients with stable COPD, its association with disease severity and smoking status as well as its diagnostic performance in COPD assessment.Methods: Blood samples were collected from 137 COPD patients and 95 healthy individuals. COPD patients were subdivided into GOLD 2-4 stages based on airflow obstruction severity and GOLD A-D groups regarding symptoms and exacerbations. Concentration of eHsp70 was assessed in EDTA plasma by the commercially available ELISA kit. Statistic analysis was performed by MedCalc statistical software.Results: eHsp70 concentration was increased in COPD patients when compared to controls and was increasing with the severity of airflow limitation as well as symptoms burden and exacerbation history. There were no differences in eHsp70 concentrations among COPD patients based on smoking status, yet eHsp70 was increased in healthy smokers compared to healthy non-smokers. Interestingly, healthy smokers had similar eHsp70 level as COPD patients in GOLD 2 stage and those in GOLD A group. In addition, eHsp70 showed significant negative correlation with lung function parameters FEV1 and FEV1/FVC and positive correlation with COPD multicomponent indices BODCAT, BODEx, CODEx and DOSE. Finally, eHsp70 showed great predictive value (OR=7.63) and correctly classified 76% of cases.Conclusions: Plasma eHsp70 is associated with COPD prediction and disease severity and might have a potential of becoming an additional biomarker in COPD assessment.


2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Nailya Kubysheva ◽  
Larisa Postnikova ◽  
Svetlana Soodaeva ◽  
Viкtor Novikov ◽  
Tatyana Eliseeva ◽  
...  

The definition of new markers of local and systemic inflammation of chronic obstructive pulmonary disease (COPD) is one of the priority directions in the study of pathogenesis and diagnostic methods improvement for this disease. We investigated 91 patients with COPD and 21 healthy nonsmokers. The levels of soluble CD25, CD38, CD8, and HLA-I-CD8 molecules in the blood serum and exhaled breath condensate (EBC) in moderate-to-severe COPD patients during exacerbation and stable phase were studied. An unidirectional change in the content of sCD25, sCD38, and sCD8 molecules with increasing severity of COPD was detected. The correlations between the parameters of lung function and sCD8, sCD25, and sHLA-I-CD8 levels in the blood serum and EBC were discovered in patients with severe COPD. The findings suggest a pathogenetic role of the investigated soluble molecules of the COPD development and allow considering the content of sCD8, sCD25, and sHLA-I-CD8 molecules as additional novel systemic and endobronchial markers of the progression of chronic inflammation of this disease.


2004 ◽  
Vol 11 (1) ◽  
pp. 15-16
Author(s):  
Dennis Bowie

Chronic obstructive pulmonary disease (COPD) is becoming an increasing problem for health care workers. The World Health Organization predicts that in the year 2020, this disease will be the fifth most prevalent disease worldwide, up from 12th place, and it will be the third most common cause of death, up from sixth place in 1997 (1). Hospitalization and mortality rates for COPD continue to rise in Canada (2). Therefore, the burden of COPD on Canadians, the health care system and physicians is obvious.


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