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Factors associated with mortality in brain abscess
Abstract:
Coma on admission, multiple, deep, or ruptured abscess, inaccurate diagnosis, and inability to prove the diagnosis were factors contributing to mortality. In survivors, abscess generally followed cranial injury, surgery, or contiguous infection; in most fatal cases, brain abscess was secondary to a more remote primary infection. Ruptured or multiple abscesses or positive spinal fluid cultures were not found in survivors, and coma was present in only one. Fatal cases in patients admitted in coma usually did not exhibit focal signs, seizures, or symptoms of meningitis early in the illness; none of these patients had prior cranial injury or surgery. Absence of these delayed their seeking care and accurate diagnosis. Ruptured abscess was frequent in these patients. Most patients not in coma on admission had focal signs, seizures, symptoms or meningitis, or had prior cranial injury or surgery.
Insights
Brain abscess mortality is linked to deep coma, multiple or ruptured abscesses, and diagnostic errors. Survivors typically had abscesses following cranial injury or surgery, unlike fatal cases often stemming from remote infections.
Area of Science:
- Neurology
- Infectious Diseases
- Neurosurgery
Background:
- Brain abscess is a serious condition with significant mortality.
- Understanding factors influencing brain abscess outcomes is crucial for improving patient care.
- Previous studies have identified various risk factors, but a comprehensive analysis is needed.
Purpose of the Study:
- To identify key factors associated with mortality in brain abscess patients.
- To differentiate clinical presentations and outcomes between survivors and non-survivors of brain abscess.
Main Methods:
- Retrospective analysis of brain abscess cases.
- Comparison of clinical data, diagnostic methods, and treatment outcomes between survivors and non-survivors.
- Identification of specific factors correlating with mortality.
Main Results:
- Coma on admission, multiple or ruptured abscesses, and diagnostic inaccuracies were significant mortality predictors.
- Abscesses in survivors often followed cranial injury, surgery, or contiguous infections.
- Fatal cases were frequently secondary to remote infections, with ruptured abscesses common in patients admitted in coma.
Conclusions:
- Early diagnosis and prompt treatment are critical for improving brain abscess survival rates.
- Clinical presentation, particularly the absence of coma and presence of focal signs, aids in early diagnosis.
- Distinguishing between abscesses secondary to direct/contiguous spread versus remote infections is important for prognosis.