Right heart catheterisation: indications and interpretation

Right heart catheterization threads a catheter through the veins into the right side of the heart and the pulmonary artery to measure pressures directly. This review is a clinician’s primer on when those measurements are worth taking — and how not to misread them.

The authors cover the indications — pulmonary hypertension above all, plus heart failure and risk stratification — and dwell on interpretation, because the numbers mislead easily without physiological context. The recurring lesson is that the test’s value lives in the reading, not just the procedure.

The practical takeaway is competence: anyone using right heart catheterization should know its indications, technique, and pitfalls well enough to trust the data it produces. The resistance is historical — the procedure went through a period of controversy over whether it helped or harmed in certain settings, which left some clinicians wary.

We rate the evidence moderate: a well-referenced educational review (66 citations) built on guidelines and clinical data, not original research. Its clinical significance is moderate — essential knowledge for the specific patients in whom hemodynamics drive decisions, but a consolidation of established practice rather than anything that changes it.