Sunday, 6 March 2016

The youngman lost his vision during febrile illness


Clinical scenario:  
          A 42 year old male presented with history of fever of two weeks duration . He also complained of headache and vomiting episodes twice. He denied any history of weight loss , visit to any endemic zone of malaria or contact with sick people or raw milk ingestion .He visited a local doctor who prescribed some antibiotics but fever didn't settle down.  One fine day he woke up and found himself  blind .He also could not get up from the bed and was brought to our hospital. 
        
Examination:
     Conscious , oriented in time place and person .Pulse was 100/min regular and BP was 120/80 mm Hg. Temp was 39 C
CVS : S1 and S2 were heard .There was grade 2/4 Pansystolic murmur radiating to axilla no peri cardial  rub. Chest and Abdomen was clinically normal. 
CNS : Neck was free and there were no signs of meningeal irritation. Apart from blindness in both eyes, Cranial nerves were normal. There was grade 4/5 power on right  side .Sensations were intact .Cerebellar signs were present on right side .

Evaluation : 
                     He had hemoglobin of 12 .3g/dl  ,leukocytosis 15,000 normal platelet count and ESR was 36 mm in first hour . ECG was normal .Trans thoracic echocardiography revealed evidence of mitral value prolapse   but no vegetations were seen.
                            Keeping in view high clinical suspicion of cardio embolic stroke  (Fever and murmur )trans esophageal echocardiography( TEE ) was done which confirmed vegetations on anterior mitral value leaflet Fig 1 

Fig Echocardiogram showing vegetation on MVP 
                  CT scan head revealed 15 mm hypodense lesion left high frontoparietal region with ring enhancement suggestive of cerebral abscess . There were  other multiple abscesses seen in right occipital lobe . Fig 2 There was no midline shift and ventricular system was normal. The findings were confirmed by MRI brain .
Staphylococcus aureus was grown from blood culture  sensitive to Ceftriaxone .

Fig 2 CT scan showing infarct Fronto parietal  region  

     
   

COURSE :  
Patient was managed with 5 weeks parentral Ceftriaxone and Vancomycin with regular monitoring of renal function tests .The fever settled .He gradually regained his vision and became ambulatory 

Teaching message :
       Trans esophageal echo cardiography must be carried out  to rule out infective endocarditis when there is high clinical suspicion of cardio embolic stroke i.e  a setting of murmur and fever..
            
For further Reading click the Link:  Cardio embolic stroke
This case was contributed by 
Dr Khalid Fathi 
Senior Consultant Internal Medicine 
King Abdul Aziz specialist Hospital Taif

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