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Can clinicians predict ICU length of stay following cardiac surgery?

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Canadian Journal of Anesthesia/Journal canadien d'anesthésie Aims and scope Submit manuscript

Abstract

Purpose

To determine whether a group of experienced clinicians can predict intensive care unit (ICU) length of stay (LOS) following cardiac surgery.

Methods

A cohort of 265 adult patients undergoing cardiacsurgery at St. Michael’s Hospital, Toronto, Ontario, between January 2, 1992, and June 26, 1992, were seen preoperatively by the clinicians participating in the study and ICU length of stay was predicted based on the clinicians’ preoperative assessment and/or information recorded in the patient’s chart.

Results

Five hundred and ten ICU length of stay predictions were obtained from a group of eight experienced clinicians (anaeslhetists/intensivists, cardiologists, nurses). The clinicians predicted the exact ICU length of stay (in days) correctly 51.2% of the time and were within ± 1 day 84.5% of the time. The clinicians correctly predicted short ICU stays (≤ 2 days) for 87.6% of the patients who had short ICU stays but only predicted long ICU stays (> 2 days) in 39.4% of the patients who had long ICU stays.

Conclusions

Experienced clinicians can predict preoperatively with a considerable degree of accuracy patients who will have short ICU lengths of stay following cardiac surgery. However, many patients who had long ICU stays were not correctly identified preoperatively. Unidentified preoperative risk factors or unanticipated intraoperative/postoperative events may be causing these patients to have longer than expected ICU stays.

Résumé

Objectif

Déterminer s’il est possible pour un groupe de cliniciens expérimentés de prédire la durée du séjour à l’unité de soins intensifs (USI) après une intervention cardiaque.

Méthodes

Une cohorte de 265 adultes opérés à l’hôpital St. Micheal de Toronto pour une chirurgie cardiaque centre le 2 janvier 1992 et le 26 juin 1992 ont été vus par les cliniciens participant à l’étude et leur durée de séjour à l’USI a été prédite sur la base de l’évaluation préopératoire et/ou des renseignements consignés au dossier.

Résultats

Cinq cent dix prédictions portant sur la durée du séjour ont été obtenues de la part de huit cliniciens expérimentés (anesthésistes/intensivistes, cardiologues, infirmières). Les cliniciens ont prédit la durée du séjour à l’USI (en jours) correctement dans 61,2% des cas et dans 84,5% à ± 1 journée près. Les cliniciens ont prédit correctement les séjours de courte durée (≤ 2 jours) pour 87,6% des courts séjours anticipés mais n’ont prédit les longs séjours (> 2 jours) que dans 39,4% des cas anticipés.

Conclusion

Il est possible pour les cliniciens expérimentés de prédire en préopératoire avec un degré de précision remarquable les courts séjours à l’USI après une chirurgie cardiaque. Par contre, plusieurs des patients ayant séjourné longuement à l’USI n’ont pas été correctement identifiés en préopératoire. Les risques préopératoires non reconnus ou des incidents per-et postopératoires imprévus peuvent causer la prolongation de certains patients à l’USI.

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Additional information

Grant support: Dr. Tu is supported by a Health Research Personnel Devlopmenl Program Fellowship (04544) from the Ontario Ministry of Health. The results and conclusions arc those of the authors, and no official endorsement by the Ministry is intended or should be inferred.

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Tu, J.V., Mazer, C.D. Can clinicians predict ICU length of stay following cardiac surgery?. Can J Anaesth 43, 789–794 (1996). https://doi.org/10.1007/BF03013030

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  • DOI: https://doi.org/10.1007/BF03013030

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