scholarly journals Six-Minute Walk Test and its Correlation with Spirometry in Stable COPD Patients

2021 ◽  
Author(s):  
B. Sai Krishna ◽  
Amrut Kumar Mohapatra ◽  
Debasis Behera ◽  
Suman Kumar Jagaty ◽  
Saswat Subhankar ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Negative Correlation ◽  
Significant Negative Correlation ◽  
Chronic Obstructive ◽  
P Value ◽  
Walk Test ◽  
Predisposing Factor ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients ◽  
Minute Walk

Abstract Objectives An impaired exercise tolerance, the main feature in chronic obstructive pulmonary disease (COPD), occurs due to multiple factors. The 6-minute walk test (6MWT) is easy to perform, well-tolerated, and more reflective of activities of daily living. The facility of spirometry is unavailable in many areas of India, where 6MWT can be done easily. This study aims to compare the six-minute walk distance (6MWD) with various demographic, clinical, and spirometry parameters. Materials and Methods A total of 118 consecutive stable COPD patients fitting the criteria were included in the study. Spirometry was performed in these patients before and after giving a short-acting bronchodilator. 6MWT was performed according to the ATS guidelines. All patients underwent the 6MWT after 10 minutes of spirometry. Statistical analysis was done using GraphPad calculator and SPSS 24.0. Statistical Analysis All data were clubbed together in a single Excel chart. Statistical analysis was done using SPSS 24.0. Descriptive data are presented as mean ± standard deviation (SD). Qualitative data are presented as a percentage. Analysis of variance (ANOVA) was used to compare between means. The linear regression model was used to compare between variables. A p-value less than 0.05 was considered significant. Results The majority of the patients were > 60 years of age (mean age = 62.99 ± 6.68 years) and comprised males and females in the ratio 5.9:1. Smoking was determined to be the most important predisposing factor for the development of COPD. There was a significant negative correlation between 6MWD, age, and smoking index (p = 0.0075 and 0.0295 respectively). The 6MWD showed a significant positive correlation with FEV1 (in liters), FEV1 (%), FVC (in liters), and FVC (%). The 6MWD (meters) and % predicted 6MWD showed a significant negative correlation with a drop in SpO2 after the 6MWT (r = –0.36; p = 0.000769, r = –0.3; p = 0.004, respectively). Conclusion 6MWT can be used in cases of COPD where spirometry is unavailable as it correlates significantly with various parameters of the latter.

scholarly journals Correlation of spirometry and six minute walk test in patients with chronic obstructive pulmonary disease from Sundargarh, Odisha, India

2019 ◽  
Vol 8 (1) ◽  
pp. 205
Author(s):  
Yara Dinakar ◽  
Pradeep Panchadi Kiran ◽  
Akshaya K. Mohanty ◽  
Praveen Kishore Sahu ◽  
Anita Mohanty
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Significant Positive Correlation ◽  
Significant Negative Correlation ◽  
Chronic Obstructive ◽  
Walk Test ◽  
Obstructive Pulmonary Disease ◽  
Positive Correlation ◽  
Six Minute Walk Test ◽  
Copd Patients ◽  
Minute Walk

Background: Six‑Minute Walk Test (6MWT) is a simple, objective, reproducible test which correlated well with different spirometric indices, and thus able to predict severity of Chronic Obstructive Pulmonary Disease (COPD) and can replace spirometry in resource poor set‑up. Here, author evaluated the correlation of 6 minute walk distance (6MWD) with spirometric indices in COPD patients and the potential of 6MWT as an alternative to the assessment of severity of COPD.Methods: This cross-sectional observational study included a total of 80 COPD patients, diagnosed by GOLD criteria (Post bronchodilator FEV1/ FVC ratio <0.7). Modified Medical Research Council (mMRC) grading was used (age, weight, height, body mass index- BMI and breathlessness) and all the patients underwent spirometric measurement of FEV1, FVC and FEV1/ FVC ratio and tests were repeated after bronchodilation using 200-400 μg of salbutamol. 6MWT was performed following American Thoracic Society (ATS) protocol of 6MWT and distance was measured in meters.Results: Author found significant negative correlation of 6MWT with age (r=-0.384, p=0.00) and mMRC grading of dyspnea (r=-0.559, p=0.00) and significant positive correlation with height (r=0.267, p=0.019) and weight (r=0.293, p=0.008). Significant positive correlation of 6MWD was noted with post bronchodilator FEV1(r=0.608, p=0.00), FEV1% (r=0.429, p=0.00), FVC (r=0.514 p=0.00), FVC% (r=0.313 p=0.005), FEV1/FVC % (r=0.336, p=0.001). Positive correlation was also observed between 6MWT and BMI but statistically insignificant (r=0.177, p=0.116). There was significant negative correlation between 6MWT and GOLD staging (r=-0.536, p=0.00).Conclusions: This finding concludes that 6MWT can be used for the assessment of severity of disease in COPD patients in places where spirometry is not available.

scholarly journals Comparison between 20 and 30 meters in walkway length affecting the 6-minute walk test in patients with chronic obstructive pulmonary disease: A randomized crossover study

PLoS ONE ◽  
2022 ◽  
Vol 17 (1) ◽  
pp. e0262238
Author(s):  
Narongkorn Saiphoklang ◽  
Apiwat Pugongchai ◽  
Kanyada Leelasittikul
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Crossover Study ◽  
Walking Distance ◽  
Chronic Obstructive ◽  
Walk Test ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients ◽  
6 Minute Walk Test ◽  
Randomized Crossover Study ◽  
Minute Walk

Background A 30-m walkway length for the 6-minute walk test (6MWT) is the standard recommendation established by the American Thoracic Society to assess patients with chronic obstructive pulmonary disease (COPD). This study aimed to compare between the distances of 20 and 30 m long corridor affecting 6MWT in COPD patients. Methods A randomized crossover study was conducted with patients. COPD patients were randomized 1:1 to either a 20-m or a 30-m walkway in the first test, then switched to the other in the second test. Physiologic parameters and 6-minute walking distance (6MWD) were recorded. Results Fifty subjects (92% men) were included: age 69.1±7.4 years, body mass index 22.9±5.5 kg/m2, FEV1 63.0±21.3%, and 50% having cardiovascular disease. The 6MWD in a 20-m and a 30-m walkway were 337.82±71.80 m and 359.85±77.25 m, respectively (P<0.001). Mean distance difference was 22.03 m (95% CI -28.29 to -15.76, P<0.001). Patients with a 20-m walkway had more turns than those with a 30-m walkway (mean difference of 4.88 turns, 95% CI 4.48 to 5.28, P<0.001). Also, higher systolic blood pressure was found in patients with a 20-m walkway after 6MWT (4.62 mmHg, P = 0.019). Other parameters and Borg dyspnea scale did not differ. Conclusions The walkway length had significant effect on walking distance in COPD patients. A 30-m walkway length should still be recommended in 6MWT for COPD assessment. Clinical trial registration Clinicaltrials.in.th number: TCTR20200206003.

A COMPARATIVE STUDY OF ABG PATTERN IN PATIENTS OF COPD WITH OR WITHOUT COR PULMONALE

2021 ◽  
pp. 64-66
Author(s):  
Md Shoeb Alam ◽  
Rahul Ranjan ◽  
V N Jha
Keyword(s):  
Hypoxic Pulmonary Vasoconstriction ◽  
Respiratory Acidosis ◽  
Public Health Problem ◽  
Cor Pulmonale ◽  
Chronic Obstructive ◽  
P Value ◽  
Major Public Health Problem ◽  
Close Monitoring ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients

INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is a major public health problem. COR PULMONALE describes the enlargement and failure of the right ventricle of the heart as a response to increased vascular resistance or increased pulmonary artery pressure. Hypoxic pulmonary vasoconstriction, hypercapnia, respiratory acidosis and pulmonary vascular remodeling in COPD can cause an increase in right ventricular (RV) after load, which in turn, results in RVfailure leading to COR PULMONALE AIM:The purpose of the study is to compare the ABG pattern in patients of COPD with or without COR PULMONALE. MATERIALS AND METHODS: This prospective observational study was conducted in the Department of Medicine of DMCH, Laheriasarai, Bihar. The study was conducted with duration of 2 years. Atotal of 100 patients admitted as a case of COPD with or without COR PULMONALE. The patients were put into two subgroups, COPD with and without COR PULMONALE. RESULT: The mean duration was 10.17 years and 9.20 years respectively in patients with and without COR PULMONALE. There was no statistically signicant difference regarding mean duration of disease (p value =0.304). Mean CAT score was 16.59 ± 6.26 and mean mMRC was 3.19± 0.45 in COPD patients with COR PULMONALE group. Mean CAT score was 14.06 ± 4.46 and mean mMRC was 3.10 ± 0.44 in COPD patients without COR PULMONALE group. We found no signicant difference among these variables between groups. Although COR PULMONALE patients had higher CATscore and mMRC score, the difference was not signicant (p value = >0.05). CONCLUSION:ABG ANALYSIS should be recommended for all patients of COPD with or without COR PULMONALE to assess the degree of hypoxemia, hypercapnea, respiratory acidosis and also, we can identify individuals who need more close monitoring and intensive treatment.

scholarly journals Correlation between 6-minute walk distance and spirometry parameters in stable chronic obstructive pulmonary disease patients

2018 ◽  
Vol 7 (1) ◽  
pp. 34
Author(s):  
Ruchita B. Hajare ◽  
Raziya Nagarwala ◽  
Ashok Shyam ◽  
Parag Sancheti
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Chronic Obstructive ◽  
Strong Positive Correlation ◽  
Walk Test ◽  
Cross Sectional ◽  
Obstructive Pulmonary Disease ◽  
Six Minute Walk Test ◽  
Tertiary Center ◽  
Minute Walk

Background: Six minute walk test (6MWT) is a sub-maximal exercise test, used as a clinical indicator of the functional capacity, in patients with cardiopulmonary diseases. It is simple, objective and reproducible test. The present study was designed to assess correlation of six minute walk test with spirometry parameters, in patients with chronic obstructive pulmonary disease.Methods: In this cross sectional study, fifty patients diagnosed with chronic obstructive pulmonary disease (GOLD criteria) coming to tertiary center were recruited according to inclusion and exclusion criteria. All patients underwent spirometric measurement. Spirometric indices including FEV1, FVC, FEV1/FVC and MVV were tested using computerized spirometer. 6MWT was performed following American Thoracic Society (ATS) guidelines. Percent (%) predicted 6MWD was calculated. Correlation between spirometry and 6MWT was assessed.Results: It was found that correlation between 6MWT and spirometry is statistically significant. There is significant strong positive correlation between percent predicted 6MWD and FEV1 (r=0.850 and p= <0.001), whereas there is significant moderate correlation between percent predicted 6MWD and FVC (r=0.554 and p= <0.001), FEV1/FVC (r=0.509 and p= <0.001) and MVV (r=0.615 and p= <0.001).Conclusions: In chronic obstructive pulmonary disease, percent predicted 6mwd significantly correlated with the spirometry parameters (FEV1, FVC, FEV1/FVC, and MVV). 6MWD decreases as there is decline in the pulmonary function. 6MWT can be a useful replacement of spirometry in assessment of severity of COPD.

scholarly journals Six-Minute-Walk Test in Chronic Obstructive Pulmonary Disease

2013 ◽  
Vol 187 (4) ◽  
pp. 382-386 ◽  
Author(s):  
Michael I. Polkey ◽  
Martijn A. Spruit ◽  
Lisa D. Edwards ◽  
Michael L. Watkins ◽  
Victor Pinto-Plata ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Chronic Obstructive ◽  
Walk Test ◽  
Obstructive Pulmonary Disease ◽  
Six Minute Walk Test ◽  
Minute Walk

scholarly journals Exercise Performance as a Predictor for Balance Impairment in COPD Patients

Medicina ◽  
2019 ◽  
Vol 55 (5) ◽  
pp. 171 ◽  
Author(s):  
Chalerm Liwsrisakun ◽  
Chaicharn Pothirat ◽  
Warawut Chaiwong ◽  
Chaiwat Bumroongkit ◽  
Athavudh Deesomchok ◽  
...  
Keyword(s):  
Exercise Performance ◽  
Walking Distance ◽  
Chronic Obstructive ◽  
P Value ◽  
Chiang Mai ◽  
Timed Up And Go ◽  
Balance Impairment ◽  
Adjusted Risk ◽  
Copd Patients ◽  
Minute Walk

Background and objective: Six-minute walk test (6-MWT) is a widely used test for assessing exercise performance in chronic obstructive pulmonary (COPD). However, the association between reduced walking distance and balance impairment in COPD has not been directly investigated. Therefore, the aim of this study was to identify exercise performance as a predictor for balance impairment in COPD. Materials and Methods: The cross-sectional study was conducted at a single visit involving stable COPD patients in Maharaj Nakorn Chiang Mai Hospital, Chiang Mai, Thailand from November 2015 to October 2017. The 6-MWT was measured for in all subjects. The prognostic confounding factors were also collected for all subjects. Balance test was measured using the Berg Balance Scale (BBS) and the Timed Up and Go (TUG) test. A cut-off score of BBS < 46 and/or the TUG ≥ 13.5 s was classified as balance impairment. Multivariable logistic regressions were performed to identify the six-minute walk distance (6-MWD) as a predictor for balance impairment in COPD. Results: Of the 176 COPD subjects assessed for eligibility, 118 COPD patients were enrolled including 86 males (72.9%) with a mean age of 73.5 ± 8.1 years. Thirty-three (28.0%) cases were classified with a balance impairment. The 6-MWD < 300 m was the predictor of balance impairment in COPD with an adjusted risk ratio of 10.10 (95%CI; 2.87, 35.61, p-value < 0.001). Conclusions: The 6-MWT is not only useful for evaluation of exercise performance, but also for prediction of balance impairment in patients with COPD. Our study suggests that the 6-MWD < 300 m is an important risk factor for balance impairment in COPD.

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