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Preoperative testing is inconsistent with published guidelines and rarely changes management

Les tests préopératoires ne correspondent pas aux directives publiées et modifient rarement la ligne de conduite

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Abstract

Purpose

The Canadian Anesthesiologists’ Society (CAS), the Ontario Preoperative Task Force (OPTF) and The Ottawa Hospital (TOH) have published guidelines detailing the indications for preoperative testing. The purpose of this study was to: (a) document compliance of testing practice at TOH-Civic Campus with published guidelines; and (b) determine the impact of preoperative testing on clinical management.

Methods

Following Research Ethics approval all patients undergoing elective surgery at TOH-Civic Campus in the first three months of 2004 were identified. One hundred charts from each month were randomly selected and analyzed retrospectively by a single reviewer. The ordering and results of four preoperative tests were characterized. The indication for preoperative testing was identified from preoperative notes and the source of non-compliant orders was identified. Compliance with the CAS, OPTF, and TOH guidelines was documented. Abnormal test results were analyzed for evidence of a subsequent change in clinical management.

Results

The charts of 294 of the 2,116 patients who underwent elective surgery at TOH-Civic Campus in the first three months of 2004 were reviewed. A total of 534 tests were ordered on 198 patients (67%). Non-compliance rates varied significantly (5-98%) depending on test and guideline analyzed. Results of 329 tests (61.6%) were normal. Management was changed by 14 of 534 tests ordered (2.6%). Surgery proceeded as scheduled in all cases.

Conclusion

The majority of elective surgical patients undergo preoperative testing. Non-compliance with guidelines ranged from 5 to 98%. The results of most tests were normal and influenced management in only 2.6% of cases.

Résumé

Objectif

La Société canadienne des anesthésiologistes (SCA) ľOntario Preoperative Task Force (OPTF) et The Ottawa Hospital (TOH) ont publié des directives détaillées sur les indications de tests préopératoires. Le but de notre étude était de: (a) documenter la conformité de la pratique des tests au TOH-Civic Campus avec les directives publiées et (b) déterminer ľimpact des tests préopératoires sur la conduite clinique.

Méthode

Avec ľaccord du Comité ďéthique de la recherche, nous avons repéré les dossiers de tous les patients opérés en chirurgie réglée au TOH-Civic Campus, au cours des trois premiers mois de 2004. Cent dossiers par mois ont été choisis au hasard et analysés rétrospectivement par un seul examinateur. Quatre tests préopératoires ont été caractérisés quant à leurs prescriptions et résultats. Ľindication de tests préopératoires a été trouvée dans les notes préopératoires et la source de prescriptions non conformes a été identifiée. La conformité avec les directives de la SCA, de ľOPTF et du TOH a été étudiée. Les résultats anormaux des tests ont été analysés pour savoir s’ils modifiaient la conduite clinique ultérieure.

Résultats

Les dossiers de 294 des 2 116 patients opérés en chirurgie réglée au TOH-Civic Campus au cours des trois premiers mois de 2004 ont été revus. Il y a eu 534 tests demandés pour 198 (67 %) patients. Les taux de non-conformitéé variaient de façon significative (5–98 %) selon les tests et les directives analysées. Les résultats de 329 tests (61,6 %) étaient normaux. Le traitement a été changé par 14 des 534 tests. La chirurgie n’a été modifiée dans aucun cas.

Conclusion

La majorité des patients de chirurgie réglée subissent des tests préopératoires. La non-conformité aux directives allait de 5 à 98 %. Les résultats de la plupart des tests étaient normaux et n’ont influencé le traitement que dans 2,6 % des cas.

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Correspondence to Gregory L Bryson.

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Bryson, G.L., Wyand, A. & Bragg, P.R. Preoperative testing is inconsistent with published guidelines and rarely changes management. Can J Anesth 53, 236–241 (2006). https://doi.org/10.1007/BF03022208

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  • DOI: https://doi.org/10.1007/BF03022208

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