When Percutaneous Drainage Fails: What Next for Peripheral Lung Abscess?

This protocol applies to a peripheral lung abscess — specifically one where there is none to very little normal lung parenchyma between the abscess and the parietal pleura. This anatomical situation distinguishes it from central or proximal abscesses and shapes which drainage and surgical approaches are appropriate.

The preceding step was percutaneous transthoracic tube drainage (PTTD) — the preferred drainage approach for peripheral abscesses in this anatomical location. The target of that intervention was clinical and radiographic improvement with resolution of the lung abscess.

When those goals are not achieved — when symptoms, signs of infection, and imaging do not improve adequately after drainage — escalation to this protocol is indicated.

After failure of percutaneous drainage, surgical resection becomes the indicated next step. The extent of resection required depends on clinical factors specific to the individual case — the full decision framework and the range of surgical options are detailed in the complete protocol.

The primary objectives are improvement of symptoms and signs of infection, and improvement of radiographic findings.