Pneumococcal meningitis masquerading as subarachnoid haemorrhage
Authors: Taposh Chatterjee, John R Gowardman and Tony D Goh
Published online: 17 November 2003
Taposh Chatterjee,* John R Gowardman,† Tony D Goh‡
* Registrar, † Intensivist (corresponding author), ‡ Radiologist, The Canberra Hospital, PO Box 11, Woden, ACT 2605. John.gowardmanATact.gov.au
In reply: We agree with Morgan that the symptoms, signs and laboratory investigations in our case report, although non-specific, supported a diagnosis of infection.1 The C-reactive protein level was not available for 24 hours. The unwitnessed drop in level of consciousness that occurred between 09:00 and 14:30 could have been secondary to meningitis or an acute cerebral event, and, while it is true that the lower lobes are predominantly involved in aspiration, they are not solely involved. Consolidation in other gravity-dependent segments, including the posterior segments of the upper lobes, can occur.2
The suggestion that “permanent blindness” could have been prevented is not supported. Fortuitously, an appropriate antibiotic to which the organism was fully sensitive was given from Day 0 (ceftriaxone). Adjunctive supportive care was quickly provided. In retrospect, anti-coagulation therapy could have recommenced earlier, but this remained a difficult decision in the context of the computed tomography findings. It remains unclear how this would have modulated the meningeal process, but it possibly contributed to the complication of pulmonary embolism.
We agree that there is a reluctance to publish what may be perceived as “negative” outcomes, but, educationally, these may be the most rewarding. This case was an uncommon presentation of a common disease, and we considered it sufficiently important to notify other practitioners. Of most importance in this era when technology in medicine advances exponentially, any investigation must be considered only an adjunct to, and not a replacement for, thorough clinical evaluation.
References
- Chatterjee T, Gowardman JR, Goh TD. Pneumococcal meningitis masquerading as subarachnoid haemorrhage. Med J Aust 2003; 178: 505-507. CACGIHJH
- Goodman LR. The postoperative and critically ill patient — aspiration pneumonitis. In: Grainger RG, Allison DJ, Andrews A, Dixon AK, editors. Grainger and Allison’s diagnostic radiology; a textbook of medical imaging. London: Churchill Livingstone, 2001: 548-549. CACCHDFJ