Helicobacter Pylori

Helicobacter pylori

Background:

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Other (Gram Negative Bacilli)
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>Aeromonas species:
     1] Aeromonas hydrophila
     2] Aeromonas veronii
     3] Aeromonas shubertii
>Bartonella species:
     1] Bartonella bacilliformis
     2] Bartonella henselae (organism responsible for cat scratch disease)
     3] Bartonella Quintana
     4] Other
>Campylobacter:
     1] Campylobacter fetus
     2] Campylobacter jejuni
>Capnocytophaga species:
     1] Capnocytophaga canimorsus
     2] Capnocytophaga ochracea
>Francisella tularensis
>Helicobacter pylori

>Legionella species: ( L. pneumophila)
>Plesiomonas shigelloides
>Vibrio species:
     1] Vibrio cholera
     2] Vibrio parahaemolyticus
     3] Vibrio damsela
     4] Other

Helicobacter pylori:

Gram-negative, microaerophilic bacterium found in the stomach.
Linked to cases of chronic gastritis and gastric ulcers.
It is also linked to the development of duodenal ulcers and stomach cancer.
Over 80 percent of individuals infected with the bacterium are asymptomatic.

Therapy:

Important considerations: The choice of an agent should be based on local antimicrobial sensitivities, site of infection, cost, and comorbid conditions. Generally, the most common agents/regimens are listed first.

No allergies: Standard PPI* (all equivalent) PLUS clarithromycin 500 mg twice daily PLUS amoxicillin 1000 mg orally twice daily for 10 to14 days.
PCN allergy: Standard PPI* (all equivalent) PLUS clarithromycin 500 mg twice daily PLUS metronidazole 500 mg twice daily for 10 to14 days.
PCN allergy or failed one of the above regimens (quadruple therapy): Standard PPI* (all equivalent) PLUS Bismuth subsalicylate 525 mg four times daily PLUS metronidazole 250 mg four times daily PLUS tetracycline 500 mg four times daily for 10-14 days