scholarly journals Early risk prediction in idiopathic versus connective tissue disease-associated pulmonary arterial hypertension: call for a refined assessment

2021 ◽  
pp. 00854-2020
Author(s):  
Clara Hjalmarsson ◽  
Barbro Kjellström ◽  
Kjell Jansson ◽  
Magnus Nisell ◽  
David Kylhammar ◽  
...  

Despite systematic screening and improved treatment strategies, the prognosis remains worse in patients with connective tissue disease-associated pulmonary arterial hypertension (CTD-PAH) compared to patients with idiopathic/hereditary pulmonary arterial hypertension (IPAH). We aimed to investigate differences in clinical characteristics, outcome, and performance of the ESC/ERS risk stratification tool in these patient groups.This retrospective analysis included incident patients with CTD-PAH (n=197, of which 64 had interstitial lung disease, ILD) or IPAH (n=305) enrolled in the Swedish PAH Register 2008–2019. Patients were classified as low, intermediate, or high risk at baseline, according to the “SPAHR-equation”. 1-year survival, stratified by type of PAH, was investigated by Cox proportional regression.At baseline, CTD-PAH patients had lower diffusing capacity for carbon monoxide and lower haemoglobin, but, at the same time, lower N-terminal prohormone-brain natriuretic peptide, longer 6 min walking distance, better hemodynamics, and more often a low-risk profile. No difference in age, WHO-FC, or renal function between groups was found. 1-year survival rates were 75, 82 and 83%, in patients with CTD-PAH with ILD, CTD-PAH without ILD, and IPAH, respectively. The 1-year mortality rates for low-, intermediate-, and high-risk groups in the whole cohort were 0, 18 and 34% (p<0.001), respectively. Corresponding percentages for CTD-PAH with ILD, CTD-PAH without ILD, and IPAH patients were: 0, 26, 67% (p=0.008); 0, 19, 39% (p=0.004); and 0, 16, 29% (p=0.001), respectively.The ESC/ERS risk assessment tool accurately identified low-risk patients but underestimated the 1-year mortality rate of CTD-PAH and IPAH patients assessed as having intermediate risk at diagnosis.

2020 ◽  
Vol 98 (9) ◽  
pp. 653-658 ◽  
Author(s):  
Ryo Imai ◽  
Shiro Adachi ◽  
Masahiro Yoshida ◽  
Shigetake Shimokata ◽  
Yoshihisa Nakano ◽  
...  

The 2015 European Society of Cardiology/European Respiratory Society guidelines for the diagnosis and treatment of pulmonary hypertension include a multidimensional risk assessment for patients with pulmonary arterial hypertension (PAH). However, prognostic validations of this risk assessment are limited, especially outside Europe. Here, we validated the risk assessment strategy in PAH patients in our institution in Japan. Eighty consecutive PAH patients who underwent right heart catheterization between November 2006 and December 2018 were analyzed. Patients were classified as low, intermediate, or high risk by using a simplified version of the risk assessment that included seven variables: World Health Organization functional class, 6-min walking distance, peak oxygen consumption, brain natriuretic peptide, right atrial pressure, mixed venous oxygen saturation, and cardiac index. The high-risk group showed significantly higher mortality than the low- or intermediate-risk group at baseline (P < 0.001 for both comparisons), and the mortalities in the intermediate- and low-risk groups were both low (P = 0.989). At follow-up, patients who improved to or maintained a low-risk status showed better survival than those who did not (P = 0.041). Our data suggest that this risk assessment can predict higher mortality risk and long-term survival in PAH patients in Japan.


2016 ◽  
Vol 76 (2) ◽  
pp. 422-426 ◽  
Author(s):  
Marc Humbert ◽  
J Gerry Coghlan ◽  
Hossein-Ardeschir Ghofrani ◽  
Friedrich Grimminger ◽  
Jian-Guo He ◽  
...  

BackgroundThe 12-week, phase III Pulmonary Arterial hyperTENsion sGC-stimulator Trial (PATENT)-1 study investigated riociguat in patients with pulmonary arterial hypertension (PAH). Here, we present a prospectively planned analysis of the safety and efficacy of riociguat in the subgroup of patients with PAH associated with connective tissue disease (PAH-CTD).MethodsPatients with PAH-CTD were further classified post hoc as having PAH associated with systemic sclerosis or PAH-other defined CTD. In PATENT-1, patients received riociguat (maximum 2.5 or 1.5 mg three times daily) or placebo. Efficacy endpoints included change from baseline in 6-minute walking distance (6MWD; primary endpoint), haemodynamics and WHO functional class (WHO FC). In the long-term extension PATENT-2, patients received riociguat (maximum 2.5 mg three times daily); the primary endpoint was safety and tolerability.ResultsIn patients with PAH-CTD, riociguat increased mean 6MWD, WHO FC, pulmonary vascular resistance and cardiac index. Improvements in 6MWD and WHO FC persisted at 2 years. Two-year survival of patients with PAH-CTD was the same as for idiopathic PAH (93%). Riociguat had a similar safety profile in patients with PAH-CTD to that of the overall population.ConclusionsRiociguat was well tolerated and associated with positive trends in 6MWD and other endpoints that were sustained at 2 years in patients with PAH-CTD.Trial registration numbersPATENT-1 (NCT00810693), PATENT-2 (NCT00863681).


2017 ◽  
Vol 7 (3) ◽  
pp. 741-746 ◽  
Author(s):  
Amresh Raina ◽  
Raymond L. Benza ◽  
Harrison W. Farber

Patients with pulmonary arterial hypertension associated with connective tissue disease (PAH-PAH-CTD) such as systemic sclerosis (SSc) have a poorer response to treatment and increased mortality compared with patients with idiopathic PAH. Current treatment options for PAH-CTD include prostanoids, phosphodiesterase type-5 inhibitors (PDE-5i), endothelin receptor antagonists, and the soluble guanylate cyclase stimulator riociguat. In this case series, we describe three patients with PAH-CTD related to limited scleroderma who were switched from a PDE-5i to riociguat due to insufficient clinical response. The switch to riociguat was associated with an improvement in respiratory and hemodynamic parameters and a favorable tolerability profile. These cases demonstrate that switching to riociguat is a therapeutic option in patients with PAH-CTD who have not achieved a satisfactory clinical response to a PDE-5i.


Rheumatology ◽  
2010 ◽  
Vol 49 (11) ◽  
pp. 2147-2153 ◽  
Author(s):  
C. J. Valerio ◽  
C. E. Handler ◽  
P. Kabunga ◽  
C. J. Smith ◽  
C. P. Denton ◽  
...  

ESC CardioMed ◽  
2018 ◽  
pp. 2531-2534
Author(s):  
Christopher P. Denton

Connective tissue disease-associated pulmonary arterial hypertension (PAH) falls within World Health Organization group 1. These patients are treated as others in this group, but there are important considerations regarding detection and diagnosis. Patients with connective tissue disease are at risk of PAH and should be screened with confirmation of diagnosis by right heart catheterization. Treatment follows the European Society of Cardiology guidelines for other forms of PAH. However, more information is available for systemic sclerosis PAH regarding screening, including the DETECT algorithm, and also in terms of long-term outcome of patients with borderline elevation of mean pulmonary arterial pressure. In cases of systemic lupus erythematosus or mixed connective tissue disease, immunosuppression should be given in conjunction with targeted PAH-specific therapy. Long-term outcomes for PAH in patients with connective tissue disease have improved since targeted specific therapies became available. Recent trials with morbidity–mortality endpoints and a high proportion of patients receiving combination treatment have shown comparable benefits for patients with connective tissue disease and PAH as for those with idiopathic PAH in contrast to the blunted response that was characteristic of earlier short-term studies assessing improvement in 6 min walk test distance.


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