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Wound Infection Rates in Clean Surgery: A Potentially Misleading Risk Classification

Published online by Cambridge University Press:  21 June 2016

Edmundo Machado Ferraz ,
Tercio Souto Bacelar ,
Jose Lamartine de Andrade Aguiar ,
Alvaro Antonio Bandeira Ferraz ,
Gilberto Pagnossin  and
Jose Edmilson Mazza Batista
Edmundo Machado Ferraz*
Affiliation:
Division of General Surgery, University Hospital of the Federal University of Arnambuco, Recife, Brazil
Tercio Souto Bacelar
Affiliation:
Division of General Surgery, University Hospital of the Federal University of Arnambuco, Recife, Brazil
Jose Lamartine de Andrade Aguiar
Affiliation:
Division of General Surgery, University Hospital of the Federal University of Arnambuco, Recife, Brazil
Alvaro Antonio Bandeira Ferraz
Affiliation:
Division of General Surgery, University Hospital of the Federal University of Arnambuco, Recife, Brazil
Gilberto Pagnossin
Affiliation:
Division of General Surgery, University Hospital of the Federal University of Arnambuco, Recife, Brazil
Jose Edmilson Mazza Batista
Affiliation:
Division of General Surgery, University Hospital of the Federal University of Arnambuco, Recife, Brazil
*
Av. Rosa e Silva, 2063, Tamarineira, Recife-PE, CEP-52020, Brazil
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Abstract

Objectives:

To evaluate the incidence of wound infection in inguinal hernioplasties, incisional hernioplasties, splenectomies, and splenectomies performed in patients with hepatosplenic schistomiasis, and to examine the relationship of surgical wound infection to antibiotic use, patient age, length of stay in the hospital prior to surgery, and the duration of the operation.

Design:

Retrospective surveillance study.

Results:

One thousand five hundred forty-two clean operations were analyzed. Comparing response (wound infection) and explanatory variables (age, length of hospital stay, duration of surgery, antibiotics, and surgery type), we found that age, use of antibiotics, and type of surgery were statistically significant, while length of hospital stay and duration of surgery were not significant.

Conclusions:

From these results, we can predict that the probability of wound infection in surgical patients considering these significant variables is lower for patients ages 14 to 30 years and higher for patients ages 31 to 60 years and lower for patients with prophylactic antibiotic use (up to 72 hours of use) and higher for patients with prolonged use (more than 72 hours); and lower for patients undergoing inguinal heria, followed in ascending order by nonschistosomotic patients undergoing splenectomy in schistosomotic patients.

Type
Original Articles
Information
Infection Control & Hospital Epidemiology , Volume 13 , Issue 8 , August 1992 , pp. 457 - 462
Copyright
Copyright © The Society for Healthcare Epidemiology of America 1992

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