Findings

What do systematic reviews say?

7 questions · 7 findings · 1 reviews · Airways

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 4 · 57.1%High 3 · 42.9%

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

Six‐minute walk distance · pulmonary arterial hypertension

1 finding from 1 review

Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
no estimate extracted
4 studies · 509 participants
Moderate

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

All‐cause mortality · pulmonary arterial hypertension

Group 1 Pulmonary arterial hypertension ‐ PDE5i showed no clear difference in mortality 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 0.26 [0.07, 1.06]
3 studies · 492 participants
Moderate

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

Physical functioning component of health‐related quality of life, measured using various scales · pulmonary arterial hypertension

1 finding from 1 review

Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 267 participants
Moderate

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

PAP · pulmonary arterial hypertension

1 finding from 1 review

Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 387 participants
High

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

Cardiac output · pulmonary arterial hypertension

1 finding from 1 review

Phosphodiesterase 5 inhibitors for pulmonary hypertension 2019 · Cochrane Headline outcomes only
no estimate extracted
3 studies · 310 participants
High

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

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 · 303 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