Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

110 questions · 115 findings · 14 reviews · Airways

No studies found 3 · 2.6%GRADE not reported 1 · 0.9%Very low 4 · 3.5%Low 42 · 36.5%Moderate 54 · 47%High 11 · 9.6%

Prostacyclin vs control

Improvement in WHO functional class · pulmonary arterial hypertension

Prostacyclin probably leads to higher improvement in WHO functional class compared with control (moderate certainty).

1 finding from 1 review

Selexipag vs placebo

Improvement in WHO functional class · pulmonary arterial hypertension

Selexipag showed no clear difference in improvement in WHO functional class compared with placebo (moderate certainty).

1 finding from 1 review

Intervention not reported

Change in Exercise Capacity (6MWD) · Adults (>18 years) with pulmonary hypertension of varied aetiology (PAH, CTEPH and left heart disease)
1 finding from 1 review

Intervention not reported

Mortality · Adults (>18 years) with pulmonary hypertension of varied aetiology (PAH, CTEPH and left heart disease)

The intervention showed no clear difference in mortality (low certainty).

1 finding from 1 review

Intervention not reported

Improvement in WHO Functional Class · Adults (>18 years) with pulmonary hypertension of varied aetiology (PAH, CTEPH and left heart disease)

The intervention showed no clear difference in improvement in WHO Functional Class (low certainty).

1 finding from 1 review

Intervention not reported

Serious Adverse Events (Participants with one or more event) · Adults (>18 years) with pulmonary hypertension of varied aetiology (PAH, CTEPH and left heart disease)

It is very uncertain whether the intervention changes serious Adverse Events (Participants with one or more event) (very low certainty).

1 finding from 1 review