scholarly journals The Role of Pressure and Duration of Dive on Lung Physiology in Professional and Non-Professional Divers

2020 ◽  
Vol 40 (2) ◽  
pp. 103-112
Author(s):  
Jerry Indra Setiawan ◽  
Suradi Suradi ◽  
Yusup Subagio Sutanto

Backgrounds: Professional divers have a greater lung volume than non-professional divers in higher force vital capacity (FVC) and force expiratory flow in 1 second (FEV1) values. The purpose of this study is to analyse the effect of pressure and duration of diving on changes in lung physiology in professional divers and non-professional divers. Methods: This is a cross sectional study on the personnel of the Indonesian Navy Dislambair Koarmada II Surabaya and RSAL personnel of dr. Ramelan Navy Hospital in Lakesla Surabaya in March-April 2019. Samples was collected with purposive sampling. This study used unpaired subjects with the independent t-test statistic analysis if the data is normally distributed and the Mann-Whitney U test if the data is not normally distributed Results: There was a significant difference in the professional divers group compared to non-professional divers group in the values of FVC (P=0.042) and FEV1 (P=0.040) at 1.3 ATA for 10 minutes and the FEV1 (P=0.049) for 20 minutes. No significant differences in FVC (P=0.092) at 1.3 ATA pressure for 20 minutes. There were no significant differences in FVC (P=0.865), FEV1 (P=0.659) at 1.5 ATA pressure for 10 minutes and FVC (P=0.858) and FEV1 (P=0.857) for 20 minutes. Conclusions: The different pressure in non-professional group could reduce the FEV1 value. There was a difference in the FVC value of the professional diver group and non-professional divers at a pressure of 1.5 ATA for 10 minutes. (J Respir Indo. 2020; 40(2): 103-12)

2019 ◽  
Vol 7 (1) ◽  
pp. 96-101
Author(s):  
Maria Estela Karolina ◽  
Armaidi Darmawan ◽  
Wahyu Indah Dewi Aurora

Abstract Background: Cigarette smoke can affect macrophage metabolism by activating macrophages to release leukotrien B4, IL-8 and TNFα which lead to increased production of superoxide (O2-) and H2O2 and also cause oxidative damage to macromolecules such as lipids, proteins, DNA that can eliminate antioxidants and form free radicals such as Nitric Oxide (NO). NO has an important contribution in the occurrence of infection where NO will be produced more by iNOS. Methods: This study is a cross sectional study with a sample of samples taken in total sampling from medical students of Jambi University as many as 22 people with smokers and 22 non-smokers. Conducted NO examination by using microplate reader on wave 595. Research data obtained then tested by statistical analysis with mann whitney and wilcoxon test. Results : NO levels in smokers were higher than nonsmoker group NO levels. Based on normality test data with Mann Whitney obtained significant difference between both groups value of sig 0.030. Furthermore, Wilcoxon analysis. The result of wilcoxon analysis shows statistic test output where sig (<0,05). Conclusion : NO levels in the smoker group were higher than in the nonsmokers group. NO levels between smokers and nonsmokers were significantly different. Keywords : Smokers, non-smokers, nitric oxide   Abstrak Pendahuluan : Asap rokok dapat mempengaruhi metabolisme makrofag dengan mengaktifkan makrofag untuk melepaskan leukotrien B4, IL-8 dan TNFα yang menyebabkan meningkatnya produksi superoksida (O2-) dan H2O2 dan juga menyebabkan kerusakan oksidatif makromolekul seperti lipid, protein, DNA yang dapat   menghilangkan  antioksidan  serta  membentuk radikal  bebas seperti Nitrit  Oxide  (NO).  NO mempunyai kontribusi yang penting dalam terjadinya infeksi dimana NO akan diproduksi lebih banyak oleh iNOS. Metode : Penelitian ini merupakan penelitian cross sectional dengan sampel penelitian yang diambil secara total sampling dari mahasiswa kedokteran Universitas Jambi sebanyak 22 orang dengan perokok dan 22 orang bukan perokok. Dilakukan pemeriksaan NO dengan menggunakan microplate reader pada gelombang 595. Data penelitian yang di dapatkan kemudian di uji dengan analisis statistic dengan uji mann whitney dan wilcoxon. Hasil : Kadar NO pada perokok lebih tinggi dibandingkan dengan kadar NO kelompok bukan perokok. Berdasarkan uji normalitas data dengan Mann whitney diperoleh perbedaan yang bermakna diantara kedua kelompok nilai sig 0.030. Selanjutnya dilakukan Analisis Wilcoxon. Hasil analisis wilcoxon menunjukkan output test statistic dimana sig (<0,05). Kesimpulan  :  Kadar  NO  pada  kelompok  perokok  lebih  tinggi  dibandingkan  dengan  kelompok  bukan perokok. Kadar NO antara kelompok perokok dan bukan perokok terdapat perbedaan yang signifikan. Kata Kunci : Perokok, bukan perokok, Nitric Oxide


2021 ◽  
Vol 10 (40) ◽  
pp. 3520-3525
Author(s):  
Pichaachari Rathika ◽  
Kaliyan Veeramuthu ◽  
Arumugam Subramanian Senthilkumar

BACKGROUND Alcohol use disorder is one of the dangerous public health burden. The construct of impulsivity and its various dimensions in relation with aggression are relevant for understanding alcohol dependence and relapse. The goal of the study is to describe the role of impulsivity and aggression in the context of alcohol dependence. The purpose and implications of this study was to understand the human factors contributing to aggression and impulsivity and in providing advanced treatment programs. METHODS This cross-sectional study was discussed in detail and approved by the ethical committee of the Madras Medical College. The cases were selected consecutively from all the patients attending the outpatients as well as inpatient for the same after fulfilling the inclusion and exclusion criteria, within seven days of last intake of alcohol. The diagnosis was made according to International Classification of Diseases (ICD-10) criteria after ruling out psychotic disorder and other comorbid medical illnesses. Informed consent was obtained from all the patients and caregivers. Descriptive statistics used meticulously to measure the magnitude. RESULTS This study found significant positive correlation (P < 0.001) between impulsivity, aggression subtypes with alcohol dependence. Various subsets in Barrett impulsivity scale (BIS) and subsets of Buss Perry aggression scales (BPAS) had positive correlations. We found that as severity of dependence increases, impulsivity and aggression scores increases and vice versa. The comparison of means of illness variables within groups showed that there was no significant difference between groups in terms of age of onset of illness, last alcohol intake, number of hospital admissions, duration of abstinence and frequency of relapse. CONCLUSIONS This study describes the important role of behavioural model and disease model of alcoholism, 1,2 greatly stresses the inability to control the quantity and frequency of the drinking behaviour. There is higher level of connectivity between alcohol dependence with biological and behavioural indicators of impulsivity and aggression. 3 It supports that relapse is an acquired behaviour in which the individual is able to control his substance taking pattern through adequate cognitive behavioural techniques in addition to pharmacological treatment and also suggest more research needed in future to focus on causality and intervention. KEY WORDS Impulsivity, Aggression, Alcohol dependence, Relapse


2020 ◽  
Vol 7 (12) ◽  
pp. 1795
Author(s):  
Dhairya Salvi ◽  
Dhanvi Moradia

Background: Obesity is a chronic disease characterized by excessive body fat that causes damage to the individual’s health and is associated with comorbidities such as diabetes and hypertension and vascular dysfunction. This cross-sectional study was carried out with the objective of evaluating the effect of obesity on lung function test in obese but otherwise healthy adults.Methods: It was a cross-sectional study carried out at tertiary care institute of Gujarat, India. It was conducted over a period of 5 months. A total of 240 adult healthy subjects of both sexes were selected randomly belonging to varying socio-economic status. The study subjects were divided into 3 categories (normal body mass index i.e. BMI, overweight, obese). BMI were calculated for the randomly selected subjects from each list till the desired number in each BMI group were attained. Four respiratory parameters viz. forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), forced expiratory volume in 3 seconds (FEV3), and maximum voluntary ventilation (MVV) were used to assess their lung functions.Results: Two hundred and forty subjects (each group having n=80). The mean age of group I, group II and group III were 27.45±6.37, 28.18±6.42 and 28.98±6.74 respectively. Lung volumes showed significant difference in relation to the BMI. FVC and FEV1 show significant decrease. Group III verses group I (p˂0.001 and p˂0.017 respectively) FEV3 showed significant difference between group I and group III and between group II and group III (p˂0.001). MVV was significantly lower in group III when compared to group I.Conclusions: There is decline in pulmonary function in obese as compared to normal weight adults. These findings suggest deleterious effects on ventilatory mechanics caused by obesity, due to probable lung compression (reduction in the expiratory reserve volume i.e. ERV), leading to a compensatory increase in the inspiratory reserve volume (IRV) in an attempt to maintain a constant vital capacity (VC).


2021 ◽  
Vol 11 (1) ◽  
pp. 081-090
Author(s):  
Arushi Mohan ◽  
Padmini SN ◽  
Brunda MS ◽  
Abhinaya Shekhar ◽  
Paul Matthew ◽  
...  

Background: COVID-19 is a novel disease triggered by the SARS-CoV-2 virus, a beta coronavirus similar to MERS-CoV and SARS CoV. Inflammatory markers have a vital role in the pathogenesis of nCOVID 19; understanding the importance of these inflammatory markers in determining disease status is essential given the impact of the disease on healthcare. Thus, being able to triage cases with minimal tests is momentous to capture, which we have investigated as per our study guidelines of the role of inflammatory markers such as D-dimer, CRP (C - reactive protein), Ferritin, LDH (Lactate Dehydrogenase) in patients with COVID 19. In addition, limited data is available comparing the utility of these inflammatory markers to predict the following parameters as the need for ICU, oxygen support requirement, and duration of in-hospital stay, which can help guide the management protocol. Aim: This study aims to determine markers associated with poor prognosis in patients with Coronavirus disease 2019 (COVID-19). Objectives: 1) To assess the inflammatory markers that are routinely investigated in COVID- 19 patients. 2) To determine the most probable factor to estimate severity in COVID- 19 and thus predict prognosis. Methods: This is a retrospective cross-sectional observational study of patients who tested SARS COV 2 positive by RT PCR. The laboratory inflammatory markers, namely Lactate Dehydrogenase, C reactive protein, D-dimer, Ferritin, were assessed in the selected patients, and their clinical data and demographic details were taken into account. The parameters considered for contributing to the severity included the number of days of stay in the hospital, oxygen requirement, and ICU needs. Analyses relied upon analysis of variance for cross-sectional study design and a P< 0.05 statistical significance criterion. Results: There was a statistically significant difference found between oxygen requirement and D dimer (p<0.001), LDH (p= 0.002), and CRP (p= 0.024). There was a statistically significant difference found between admission to ICU and D Dimer (p= 0.001). Conclusion: A statistically significant association between the increasing D-dimer levels and all the outcome measures considered was found. The D-dimer, LDH, and CRP help predict oxygen requirement, and all the inflammatory markers can predict the number of days of stay in the hospital.


2020 ◽  
Vol 11 (4) ◽  
pp. 7585-7592
Author(s):  
Vinod A N ◽  
Leena Chand ◽  
Preeti R Y ◽  
Harshitha S ◽  
Prahaladh R

The study of biomarkers in Rheumatoid arthritis (RA) is highly indispensable to understand mechanisms of pathogenesis, diagnosis, prognosis, and treatment of disease. The role of traditional biomarkers like Anti-CCP, RF, and inflammatory markers like ESR and CRP is well established. In this study, we aimed to measure nontraditional biomarkers like Hyaluronic acid (HA), Cartilage oligomeric matrix protein (COMP), and Osteocalcin in the serum of RA patients and also to establish an association with traditional markers. It was a cross-sectional study involving 152 RA patients based on the 1987 ACR criteria for the diagnosis of RA and 68 age‑ and sex-matched healthy controls. After the clinical examination, traditional markers were assessed to measure the disease activity along with non traditional markers in RA patients. All the values were expressed as median (25th–75th percentile). In our study, there was a significant increase in serum HA levels in RA patients compared to healthy controls (p  < 0.03), whereas no significant difference in serum COMP and osteocalcin levels. The traditional inflammatory markers were significantly increased in RA patients than controls with (p  < 0.001). The serum HA levels were significantly correlated with traditional markers in RA patients. Conclusion: Significant increase in serum HA level in RA patients indicating synovial inflammation, but there were no notable changes in COMP and osteocalcin level in serum presuming the combination of these markers may be useful along with traditional markers in the different stages of RA.


2020 ◽  
Vol 35 (2) ◽  
pp. 100-104
Author(s):  
Maksudur Rahman ◽  
Mohammad Abdullah Al Mamun ◽  
MAK Azad Chowdhury ◽  
Abu Sayeed Munsi

Background: Recently it has been apprehended that sildenafil, a drug which has been successfully using in the treatment of PPHN and erectile dysfunction in adult, is going to be withdrawn from the market of Bangladesh due to threat of its misuses. Objective: The aim of this study was to see the extent of uses of sildenafil in the treatment of PPHN and importance of availability of this drugs in the market inspite of its probable misuses. Methods: This cross sectional study was conducted in neonatal intensive care unit (NICU), special baby care unit (SCABU) and cardiac intensive care unit (CICU) of Dhaka Shishu (Children) Hospital from June, 2017 to May 2018. Neonates with PPHN were enrolled in the study. All cases were treated with oral sildenefil for PPHN along with others management according to hospital protocol. Data along with other parameters were collected and analyzed. Results: Total 320 patients with suspected PPHN were admitted during the study period. Among them 92 (29%) cases had PPHN. Male were 49(53 %) cases and female were 43(47%) cases. Mean age at hospital admission was 29.7±13.4 hours. Based on echocardiography,13(14%) cases had mild, 38 (41%) cases moderate and 41(45%) cases severe PPHN. Mean duration of sildenafil therapy was 11.9±7.1 days. Improved from PPHN were 83 (90%) cases. Mortality was 10% (9). Conclusion: In this study it was found that the incidence of PPHN is 29% among the suspected newborns. Sildenafil is successfull in improving the oxygenation of PPHN and to decrease the mortality of neonates. DS (Child) H J 2019; 35(2) : 100-104


2012 ◽  
Vol 2 (2) ◽  
pp. 345-350
Author(s):  
Dr. Girish.L Dandagi ◽  
◽  
Venkat kalyana kumar. P ◽  
Dr. Dr.Isaac Mathew ◽  
Dr. Dr.G S Gaude Dr. Dr.G S Gaude

Author(s):  
Serena Barello ◽  
Rosario Caruso ◽  
Lorenzo Palamenghi ◽  
Tiziana Nania ◽  
Federica Dellafiore ◽  
...  

Abstract Purpose The purpose of the present cross-sectional study is to investigate the role of perceived COVID-19-related organizational demands and threats in predicting emotional exhaustion, and the role of organizational support in reducing the negative influence of perceived COVID-19 work-related stressors on burnout. Moreover, the present study aims to add to the understanding of the role of personal resources in the Job Demands-Resources model (JD-R) by examining whether personal resources—such as the professionals’ orientation towards patient engagement—may also strengthen the impact of job resources and mitigate the impact of job demands. Methods This cross-sectional study involved 532 healthcare professionals working during the COVID-19 pandemic in Italy. It adopted the Job-Demands-Resource Model to study the determinants of professional’s burnout. An integrative model describing how increasing job demands experienced by this specific population are related to burnout and in particular to emotional exhaustion symptoms was developed. Results The results of the logistic regression models provided strong support for the proposed model, as both Job Demands and Resources are significant predictors (OR = 2.359 and 0.563 respectively, with p < 0.001). Moreover, healthcare professionals’ orientation towards patient engagement appears as a significant moderator of this relationship, as it reduces Demands’ effect (OR = 1.188) and increases Resources’ effect (OR = 0.501). Conclusions These findings integrate previous findings on the JD-R Model and suggest the relevance of personal resources and of relational factors in affecting professionals’ experience of burnout.


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