This protocol addresses adults with community-acquired pleural infection and no penicillin allergy whose first-line treatment has not produced the expected clinical response. In the community-acquired setting, therapy must cover both Gram-positive aerobes and anaerobes; co-existence of penicillin-resistant aerobes and anaerobic bacteria is common and must be accounted for.
The first-line regimen combines empirical broad-spectrum antibiotics — including co-amoxiclav and metronidazole to cover penicillin-resistant aerobes and anaerobes — with prompt intercostal chest drain insertion.
The target of that line is clinical improvement: cessation of pyrexia, resolution of inflammatory markers, and radiological improvement, typically expected within the first 5–7 days of intravenous treatment. When those targets are not reached, escalation to this protocol is indicated.
When the infected pleural space fails to drain adequately, the established next-line intervention is intrapleural fibrinolytic therapy (IPFT) — a procedure directed at the non-draining collection. IPFT is now the standard of care in many centres for this situation, supported by a growing body of evidence on its safety and efficacy.
The specific agents, administration sequence, and schedule that constitute this regimen are set out in the full structured protocol.
Goal: Improvement in radiographic clearance and effective drainage of the infected pleural space.