Reliability and responsiveness of incremental shuttle walk test to estimate exercise capacity in patients with pulmonary arterial hypertension

2020 ◽  
Vol 16 (3) ◽  
pp. 179-185
Author(s):  
R. Ishrat ◽  
A. Mujaddadi ◽  
M.S. Ali ◽  
D. Talwar ◽  
M.E. Hussain
Keyword(s):  
Pulmonary Arterial Hypertension ◽  
Arterial Hypertension ◽  
Exercise Capacity ◽  
Intraclass Correlation ◽  
World Health ◽  
Minimal Detectable Change ◽  
Walk Test ◽  
Cross Sectional ◽  
Suitable Alternative ◽  
Pulmonary Arterial

The purpose of the present study was to evaluate the reliability and responsiveness of the incremental shuttle walk test (ISWT) to estimate exercise capacity in patients with pulmonary arterial hypertension (PAH). This was a cross-sectional longitudinal study performed on stable PAH patients (n=30, mean age ± standard deviation, 60±13.6 years) with World Health Organization functional class II & III. Reliability was assessed by comparing the distance covered between ISWT-1 (initial) and ISWT-2 (retest). Responsiveness was determined by comparing the distance covered in the ISWT-3 post pulmonary rehabilitation (PR) to the ISWT-1. The distance covered between ISWT-1 (177±87.85 m) and ISWT-2 (191.67±96.39 m) was not statistically significant. The result of the relative reliability has shown to be excellent with an intraclass correlation coefficient (ICC2,1 = 0.98, 95%CI = 0.95-0.99). Absolute reliability was evaluated through the standard error of the measurement and minimal detectable change at a 95% confidence interval (MDC95) were 12.29 and 33.9 m, respectively. Bland Altman plot showed good agreement between the two ISWTs. Following PR, the effect size (ES=0.78) and standardised response mean (SRM=1.50) were moderate and large respectively. ISWT is considered to be a reliable and responsive measure to estimate exercise capacity in patients with PAH. The ISWT may be considered a suitable alternative tool over a 6-min walk test and in the absence of equipment availability or expertise for conducting cardiopulmonary exercise test for the assessment of exercise capacity in these patients.

scholarly journals Echocardiography as an Outcome Measure in Scleroderma-related Pulmonary Arterial Hypertension: A Systematic Literature Analysis by the EPOSS Group

2009 ◽  
Vol 37 (1) ◽  
pp. 105-115 ◽  
Author(s):  
OTYLIA KOWAL-BIELECKA ◽  
JEROME AVOUAC ◽  
DAVID PITTROW ◽  
DOERTE HUSCHER ◽  
FRANK BEHRENS ◽  
...  
Keyword(s):  
Pulmonary Arterial Hypertension ◽  
Arterial Hypertension ◽  
Outcome Measure ◽  
Criterion Validity ◽  
Right Heart Catheterization ◽  
Face Validity ◽  
World Health ◽  
Heart Catheterization ◽  
Cross Sectional ◽  
Pulmonary Arterial

Objective.To assess the validation status of echocardiography with continuous Doppler (echo-Doppler) as an outcome measure in pulmonary arterial hypertension associated with systemic sclerosis (PAH-SSc).Methods.Structured literature review on full-text English articles was performed using the PubMed and Cochrane databases. Assessment of validation of echo-Doppler was based on the OMERACT filter criteria with the domains truth (face, content, construct, and criterion validity), discrimination, and feasibility.Results.Out of 35 studies eligible for analysis, only 5 included well defined PAH-SSc subgroups (World Health Organization criteria). Echo was considered as having face validity based on expert opinion and high number of studies using echo for evaluation of patients with SSc. Echo was considered partially validated with respect to criterion validity based on significant correlations between echo measures and right-heart catheterization in patients with SSc at risk of PAH/PH. However, echo was found to lack specificity (lack of content validity), since measurements of echo pulmonary pressure may be influenced by left-heart disease and interstitial lung disease. Data from general populations of patients with scleroderma indicate that evaluation of pulmonary artery pressure by echo might not be available in all PAH-SSc patients because of technical factors. No studies enabling evaluation of the discriminant capacity over time and treatment of echo in PAH-SSc could be identified.Conclusion.Further studies are needed to fully validate echo-Doppler as an outcome measure in PAH-SSc. These studies would include cross-sectional analysis of baseline measures and longitudinal data of placebo and verum groups in randomized controlled trials of patients with PAH-SSc.

scholarly journals EXPRESS: TORREY, a Phase 2 Study to Evaluate the Efficacy and Safety of Inhaled Seralutinib for the Treatment of Pulmonary Arterial Hypertension

2021 ◽  
pp. 204589402110570
Author(s):  
Robert Frantz ◽  
Raymond L. Benza ◽  
Richard Channick ◽  
Kelly M Chin ◽  
Luke Howard ◽  
...  
Keyword(s):  
Pulmonary Arterial Hypertension ◽  
Arterial Hypertension ◽  
Vascular Remodeling ◽  
World Health ◽  
Walk Test ◽  
Phase 2 ◽  
Efficacy And Safety ◽  
Pulmonary Arterial ◽  
6 Minute Walk Test ◽  
Minute Walk

Aberrant kinase signaling that involves platelet-derived growth factor receptor (PDGFR) α/β, colony stimulating factor 1 receptor (CSF1R), and stem cell factor receptor (c-KIT) pathways may be responsible for vascular remodeling in pulmonary arterial hypertension (PAH). Targeting these specific pathways may potentially reverse the pathological inflammation, cellular proliferation, and fibrosis associated with PAH progression. Seralutinib (formerly known as GB002) is a novel, potent, clinical stage inhibitor of PDGFRα/β, CSF1R, and c-KIT delivered via inhalation that is being developed for patients with PAH. Here, we report on an ongoing Phase 2 randomized, double-blind, placebo-controlled trial (NCT04456998) evaluating the efficacy and safety of seralutinib in subjects with World Health Organization Group 1 Pulmonary Hypertension who are classified as Functional Class II or III. A total of 80 subjects will be enrolled and randomized to receive either study drug or placebo for 24 weeks followed by an optional 72-week open-label extension study. The primary endpoint is the change from baseline to Week 24 in pulmonary vascular resistance by right heart catheterization. The secondary endpoint is the change in distance from baseline to Week 24 achieved in the 6-minute walk test. A computerized tomography substudy will examine the effect of seralutinib on pulmonary vascular remodeling. A separate heart rate monitoring substudy will examine the effect of seralutinib on cardiac effort during the 6-minute walk test.

The assessment of breathlessness in pulmonary arterial hypertension: Reliability and validity of the Dyspnoea-12

2013 ◽  
Vol 13 (6) ◽  
pp. 506-514 ◽  
Author(s):  
Janelle Yorke ◽  
Iain Armstrong
Keyword(s):  
Pulmonary Arterial Hypertension ◽  
Arterial Hypertension ◽  
Depression Scale ◽  
Reliability And Validity ◽  
World Health ◽  
Cross Sectional ◽  
Patient Reported ◽  
Pulmonary Arterial ◽  
D 12 ◽  
Cardinal Symptom

Breathlessness is a cardinal symptom of pulmonary arterial hypertension (PAH); yet no breathlessness instrument has been previously tested for reliability and validity for this population. Using a cross-sectional design, we tested the psychometric properties of the Dyspnoea-12 (D-12), for the assessment of breathlessness in PAH. Pearson’s correlations with World Health Organization functional class (WHO FC), Minnesota Living with Heart failure – pulmonary hypertension modified version (MLHF-PH), Hospital Anxiety and Depression scale (HADS) and 6-minute walk distance test (6MWD) were conducted. Participants ( n = 176) were mostly female (70.5%), mean age 54.3±14 years; diagnosed with idiopathic PAH (48.9%), congenital heart disease (27.8%) and connective tissue disease (23.3%); and most were WHO FC II (32.4%) and III (52.3%). The D-12 showed excellent internal consistency for the total and two-component scores for physical and emotional (Cronbach’s α 0.95, 0.93 and 0.94, respectively). D-12 total score was significantly associated with MLHF-PH ( r = 0.70), HADS (anxiety r = 0.54 and depression r = 0.68), WHO FC ( r = 0.49), and 6MWD ( r = -0.26). In patients with PAH, the D-12 - a short patient reported measure of breathlessness severity that taps the physical and emotional components, is a reliable and valid instrument.

scholarly journals Contemporary use of Selexipag in pulmonary arterial hypertension associated with congenital heart disease: a case series

2020 ◽  
Author(s):  
Sarah Blissett ◽  
David Blusztein ◽  
Vaikom S Mahadevan
Keyword(s):  
Congenital Heart Disease ◽  
Heart Disease ◽  
Pulmonary Arterial Hypertension ◽  
Side Effects ◽  
Arterial Hypertension ◽  
Exercise Capacity ◽  
Congenital Heart ◽  
Pulmonary Veins ◽  
Case Series ◽  
Pulmonary Arterial

Abstract Background There are significant risks of parenteral prostacyclin use in patients with pulmonary arterial hypertension associated with congenital heart disease (PAH-CHD), which may limit their use. Selexipag is an oral, selective prostacyclin analogue that has been shown to reduce disease progression and improve exercise capacity in patients with PAH-CHD. Administering Selexipag in patients with PAH-CHD could potentially overcome some of the risks of parenteral therapy while improving clinical outcomes. Case summary We report five cases highlighting the clinical uses of Selexipag in patients with PAH-CHD. In the first two cases, Selexipag was initiated as part of a Treat-to-close strategy. In the third case, initiation of Selexipag improved symptoms and objective exercise capacity in a patient with Eisenmenger syndrome. In the fourth and fifth cases, rapid cross-titration protocols were used to transition from parenteral prostacyclins to Selexipag. In the fourth case, Selexipag was initiated in the context of significant side effects limiting parenteral prostacyclin use. In the fifth case, Selexipag was used to down-titrate from parenteral prostacyclins following closure of a sinus venosus atrial septal defect and redirection of anomalous pulmonary veins. Discussion Selexipag is a promising oral therapy for patients with at various stages of the spectrum of PAH-CHD to improve symptoms, exercise capacity and, in some cases, haemodynamics. Our cases also highlight practical aspects of Selexipag use including targeting the individualized maximally tolerated dose for each patient, managing side effects and managing dose interruptions.

scholarly journals EXPRESS: Association of daily physical activity with psychosocial aspects and functional capacity in patients with Pulmonary Arterial Hypertension: a cross-sectional study

2021 ◽  
pp. 204589402199995
Author(s):  
Layse Nakazato Lima ◽  
Felipe Mendes ◽  
Ilma Paschoal ◽  
Daniela Oliveira ◽  
Marcos Mello Moreira ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Pulmonary Arterial Hypertension ◽  
Arterial Hypertension ◽  
Functional Capacity ◽  
Daily Physical Activity ◽  
Cross Sectional ◽  
Pulmonary Arterial ◽  
The Mean

Pulmonary arterial hypertension (PAH) impairs exercise tolerance and daily physical activity (PA). Aside from the hemodynamic limitations, physical, cognitive and emotional factors may play a relevant and as yet unexplored role. We investigated whether there is an association between the PA level and psychological disorders, health-related quality of life, and daily activities. We also searched for an association of the PA level with clinical factors and functional capacity. This was an analytical, cross-sectional, observational study conducted in a Brazilian University Hospital. Twenty stable PAH subjects wore an accelerometer for a week and completed an activity diary. They answered the quality of life questionnaire (SF-36), as well as the anxiety and depression scale (HADS), and the Manchester Respiratory Activities of Daily Living questionnaire (MRADL). Transthoracic echocardiography, the 6-Minute walk test (6MWT), the 1-minute sit-to-stand test (STST), and spirometry were performed. For statistical analysis we used Chi-square tests or Fisher's test as appropriate and the Mann-Whitney test to compare numerical values between two groups. The relationship between the parameters was assessed using the Spearman correlation test. The mean age was 44.3 years, 80% were women, 80% had idiopathic PAH, and 20% had connective tissue disease . The mean daily step count was 4,280 ± 2,351, and the mean activity time was 41.6 ± 19.3 minutes. The distance covered (6MWT) was 451.5 m, and the number of movements (1-STST) was 23.8. Thirty percent scored positive for anxiety, and 15% for depression (HADS). There was a significant correlation between accelerometer data and walking distance (6MWT), number of movements (1-STST), level of daily physical activity (MRADL), and depression symptoms. Our findings support the hypothesis that other aspects beyond physical and hemodynamic ones might impact the daily physical activity of patients with PAH.

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