Introduction:Teams as the fundamental units of organizations and lever keys are considered for improving the function of organization. For promoting the productivity and acquiring the satisfactory staffs and clients, organizations use working teams. Some organizations are highly dependent teams. Hospital is also one of these organizations, in which establishing cooperation between the members of team can play a role to accelerate patient's life saving operation and his/her improvement. This article aimed to determine and evaluate the effects of effective factors on efficacy of surgical work teams' efficacy from employee's point of views in training hospitals.

Methods:This study is a descriptive- survey research. Research population was surgical teams of Isfahan teaching hospitals. These teams were made of 6 groups of nurse, aides, and experts in surgery theaters, experts in anesthesia, nurses, anesthesists and surgeons. So, used sampling approach was classified sampling approach. 189 persons of members of surgical teams were selected randomly. Data collecting tools was a researcher made questionnaire, with Lycert scoring. External and content validation was confirmed by of guide and advisor professors, and its constancy was provided by primary study using Cronbach's alpha 0.94 coefficients.

Results: Our finding showed that team size, team task fitness, existence of definite goals in team, team, and norms in the efficacy of surgical work teams meaningfully affected more than average: and team cohesiveness, team composition, evaluation of function and the effect of remuneration in team and organizational support of team on the effectiveness, were less than average. By considering that surgical teams were complicated and incongruous one, team composition and team cohesiveness did not affect the efficacy of surgery teams. With multivariable regression analysis, team norms with 74. 5% had the highest amount effect on the efficacy of surgery teams. 

Conclusion: With promoting team norms, organizational support, and existence of clear goals in teams, the efficacy of surgical teams increase. Also perspectives of members of hospital surgery teams in terms of education, service background, position, hospital, age, and team size and sex, were similar about the effects of mentioned factors.