Brain Abscess in Severe Immuno-compromise When Initial Treatment Has Not Achieved the Expected Goals
Clinical Scenario
This protocol addresses brain abscess in patients with severe immuno-compromise — including organ transplant recipients, individuals on active chemotherapy or biological treatment, and those with haematological malignancy — in whom the first-line treatment approach has not produced the required clinical and radiological response.
Previous Treatment & Failure Condition
The initial approach in this population combines prompt neurosurgical aspiration or excision with empirical intravenous antibiotic and antifungal therapy, plus adjunctive corticosteroids when clinically indicated. Escalation to this protocol occurs when the expected goals are not met: resolution of fever within 10–14 days, and a measurable reduction in brain abscess volume on imaging by 4 weeks after the initial aspiration.
Next-Step Approach (partial overview)
When the initial aspiration has not produced the required reduction in abscess volume, the next step centres on repeated neurosurgical intervention. The complete protocol specifies the conditions under which each surgical option is chosen and what measures accompany it.
References
DOI: 10.1016/j.cmi.2023.08.016
- We conditionally recommend a 3rd-generation cephalosporin and metronidazole combined with trimethoprim-sulfamethoxazole and voriconazole for empirical treatment of brain abscess in children and adults with severe immuno-compromise equivalent to organ transplant recipients, active chemotherapy or biological treatment, or haematological malignancies (Table 4) (conditional recommendation and very low certainty of evidence).
- Repeated neurosurgical aspiration, or in selected cases excision, should be carried out in case of clinical deterioration or enlargement of brain abscess, and is almost always required in those without any reduction in brain abscess volume by 4 weeks after first aspiration (good clinical practice statement).
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