HACEK is NOT related to
A. Hemophilus aphrophilusB. Acinetobacter baumannii
C. Cardiobacterium hominis
D. Eikenella corrodens
Ans. B. (Acinetobacter baumannii)
Explanation
HACEK
This refers to a group of fastidious slow-growing bacteria, normally resident in mouth, which can sometimes cause severe infections, particularly endocarditis. This group includes the following:
• Haemophilus species (H. parainfluenzae, H. aphrophilus, and H. paraphrophilus)
• Actinobacillus actinomycetemcomitans
• Cardiobacterium hominis
• Eikenella corrodens
• Kin gella kingae
Characteristic features
• Blood culture from HACEK patients takes 7—30 days to become positive.
• Antibiotic-sensitivity tests are essential for effective therapy as drug resistance is very common.
• 3% of the cases of infective endocarditis are attributable to HACEK organisms.
• Embolization is common; prevalence of major emboli is 28—60 percent.
• Strains producing β-lactamase may not be identified accurately.
• The cure rate for HACEK prosthetic valve endocarditis appears to be high.
• Haemophilus species accounts for half of the cases.
• Mycotic aneurysm and congestive heart failure are frequent.
