Operative length independently affected by surgical team size: data from 2 Canadian hospitals
- PMID: 23177519
- PMCID: PMC3506685
- DOI: 10.1503/cjs.011311
Operative length independently affected by surgical team size: data from 2 Canadian hospitals
Abstract
Background: Knowledge of the composition of a surgical team is the premise for studying efficiency inside the operating room.
Methods: To investigate the team composition in general surgery procedures, we retrospectively reviewed procedures performed by an expert general surgeon in 2007-08 at 2 tertiary hospitals. For each patient, demographic characteristics, procedure type, team members and procedure length were extracted from intraoperative nursing records. We assessed procedure complexity using a calculated index. Multiple logistic regressions were performed to assess the association between procedure length and team size after adjusting for procedure complexity and patient condition.
Results: For the 587 procedures reviewed, the mean procedure length was 88 (standard deviation [SD] 51) minutes. On average, 8 team members (range 4-14), including surgeons, anesthesiologists, nurses and other specialists, were involved in each procedure. Only 47 (8%) procedures were performed by 1 surgeon. Most were performed by 2 (295 [50%]) or 3 surgeons (214 [36%]). Half the team members were nurses (mean 4, range 1-7). Both the complexity of the operation and the team size affected the procedure length significantly. When procedure complexity and patient condition were constant, adding 1 team member predicted a 7-minute increase in procedure length.
Conclusion: This study demonstrates that a frequent change of core team members has a negative impact on surgical performance. Management strategies need to improve to optimize team efficiency in the operating room.
Contexte: Pour étudier l’efficience des équipes chirurgicales au bloc opératoire, il faut en connaître la composition.
Méthodes: Pour analyser la composition d’une équipe de chirurgie générale, nous avons analysé rétrospectivement les interventions effectuées par un chirurgien général d'expérience en 2007–08 dans 2 hôpitaux de soins tertiaires. Pour chaque cas, nous avons extrait les caractéristiques démographiques, le type d’intervention, les membres de l’équipe et la durée de l’intervention à partir des notes infirmières peropératoires. Nous avons évalué la complexité de l’intervention à l’aide d’un indice calculé. Nous avons utilisé le modèle de régression logistique multiple pour établir le lien entre la durée de l’intervention et la taille de l’équipe après ajustement pour tenir compte de la complexité de l’intervention et de l’état des patients.
Résultats: La durée moyenne des 587 interventions analysées a été de 88 (écart-type [ET] 51) minutes. En moyenne, les équipes de chaque intervention se composaient de 8 membres (étendue 4–14), incluant chirurgiens, anesthésistes, infirmières et autres spécialistes mis à contribution. Seulement 47 interventions (8 %) ont été effectuées par un seul chirurgien. La plupart ont été effectuées par 2 (295 [50 %]) ou 3 (214 [36 %]) chirurgiens. Les infirmières formaient la moitié des équipes (moyenne, 4, étendue 1–7). La complexité de l’intervention et la taille de l’équipe ont significativement influé sur la durée de l’intervention. Lorsque la complexité des interventions et l’état des patients demeuraient constants, l’ajout d’un membre à l’équipe permettait de prédire une augmentation de la durée de l’intervention de l’ordre de 7 minutes.
Conclusion: Cette étude démontre que les modifications fréquentes des membres de l’équipe centrale exercent un impact négatif sur le rendement chirurgical. Il y aurait lieu d’améliorer les stratégies de gestion pour optimiser l’efficience des équipes des blocs opératoires.
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