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Bacteremia caused by digestive system endoscopy.

J M Barragán Casas1, J M Hernández Hernández, M A Garciñuno Jiménez

  • 1Sección de Digestivo, Hospital Ntra. Sra. de Sonsoles, Avila, España.

Revista Espanola De Enfermedades Digestivas
|May 7, 1999
PubMed
Summary

Digestive tract endoscopic procedures can cause bacteremia (bacteria in the bloodstream), ranging from 10% to 39% incidence. Staphylococcus and Streptococcus species were the most common bacteria found.

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Area of Science:

  • Gastroenterology
  • Infectious Diseases
  • Microbiology

Background:

  • Bacteremia can occur following invasive procedures.
  • Endoscopic examinations of the digestive tract are common diagnostic and therapeutic interventions.

Purpose of the Study:

  • To evaluate the incidence and characteristics of bacteremia following digestive tract endoscopic examinations.
  • To identify microorganisms responsible for bacteremia after different types of endoscopy.

Main Methods:

  • A prospective study was conducted on 102 patients undergoing elective digestive system endoscopic examinations.
  • Patients were categorized based on the type of endoscopy performed: gastroscopy, colonoscopy, and endoscopic retrograde cholangiopancreatography (ERCP).
  • Blood cultures were analyzed post-procedure to detect bacteremia.

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Main Results:

  • Bacteremia incidence varied by procedure: 25% for gastroscopy, 10% for colonoscopy, and 39.2% for ERCP.
  • Staphylococcus spp. and Streptococcus spp. were the most frequently isolated microorganisms.
  • Gram-negative bacilli, including Escherichia coli and Morganella morganii, were identified in patients who underwent ERCP.

Conclusions:

  • The risk of bacteremia following digestive endoscopy is procedure-dependent, with ERCP posing the highest risk.
  • Staphylococci and Streptococci are the predominant pathogens, but Gram-negative bacteria are also implicated, particularly after ERCP.
  • No severe complications such as endocarditis or septic phenomena were directly attributed to the observed bacteremia.