Findings

What do systematic reviews say?

64 questions · 68 findings · 3 reviews · Airways

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No studies found 4 · 5.9%GRADE not reported 1 · 1.5%Very low 3 · 4.4%Low 22 · 32.4%Moderate 27 · 39.7%High 11 · 16.2%

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo

RAP · pulmonary arterial hypertension

1 finding from 1 review

Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 341 participants
High

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo

Cardiac index · pulmonary arterial hypertension

1 finding from 1 review

Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 239 participants
Moderate

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo

PVR · pulmonary arterial hypertension

1 finding from 1 review

Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 266 participants
High

Group 1 Pulmonary arterial hypertension ‐ PDE5i vs placebo, on combination therapy

Improvement in WHO functional class · pulmonary arterial hypertension

Group 1 Pulmonary arterial hypertension ‐ PDE5i showed no clear difference in improvement in WHO functional class compared with placebo, on combination therapy (moderate certainty).

1 finding from 1 review

Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
OR 1.2 [0.66, 2.17]
2 studies · 227 participants
Moderate