Background:

Splenectomized patients have an increased risk of sepsis caused by encapsulated bacteria. Pneumococcal, meningococcal and Haemophilus influenzae B vaccination is recommended in this group. The aim of our study was to assess the impact of the introduction of an immunization hospital clinic on their immunization coverages.

Methods:

Quasi-experimental study. The control group included patients splenectomized between January 2012-April 2014, and the intervention group included patients splenectomized between May 2014-December 2016. The global and specific immunization coverages were compared between both groups using a Chi-square test.

Results:

80 patients were analyzed. The most commonly administered vaccine was the 23-valent pneumococcal polysaccharide vaccine (65%). A significant improvement was observed both in the global immunization rate (17.1% in the pre-intervention study vs. 57.8% in the post-intervention study) (RR: 3.37; 95% CI: 1.56-7.27) and in the specific immunization rate for the Haemophilus influenzae B, meningococcal C and 13-valent pneumococcal conjugate vaccines.

Conclusions:

Introducing an immunization hospital clinic is an effective measure to improve the immunization coverage of splenectomy patients.

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