We examined the effects of Resource-based Relative Value Scale (RBRVS)- and physician diagnosis-related groups (MDDRG)-based payment for anesthesiology services related to surgery by simulating these physician payment reform options. We merged Medicare Part A (hospital) and Part B (anesthesiology) payment data for 7,770 patients for the MDDRG analysis and examined 10,431 surgical procedures for the RBRVS analysis within 27 diagnosis-related groups (DRGs) during the second half of 1986 in 16 hospitals representing different geographic regions, bed size, and teaching status. Assuming budget neutrality (i.e., constant total expenditure for anesthesiology services) and using the proposed methodologies, we simulated RBRVS and MDDRG payments and compared them to current payments for anesthesiology services. Individual surgical procedures demonstrated a two- to more than four-fold variation in duration, accompanied by a similar variation in anesthesiology payments. Within DRGs, there was a three- to ten-fold variation in duration, and a two- to seven-fold variation in anesthesiology payments. Anesthesiology time was highly correlated with surgical time (r = 0.86-0.96). Compared to the current system, RBRVS and MDDRG systems were associated with systematic variations in payments, such that on average, on each case, anesthesiologists practicing in rural and nonteaching hospitals would gain, whereas those in urban or suburban and teaching facilities would lose. After adjusting for complexity of procedure, the distribution of payment gains and losses was a function of duration of surgery, which is not influenced by the anethesiologist. Longer cases of a given surgical procedure result in payment decreases. The results document the importance of retaining a time factor in the payment methodology for anesthesiology services to maintain equitable payment across practice settings--an objective of physician payment reform.

译文

我们通过模拟这些医生支付改革方案,研究了基于资源的相对价值量表 (RBRVS) 和基于医生诊断相关组 (MDDRG) 的支付对与手术相关的麻醉学服务的影响。我们合并了用于MDDRG分析的7,770名患者的Medicare A部分 (医院) 和B部分 (麻醉学) 支付数据,并在下半年1986年在代表不同地理区域的16家医院的27个诊断相关组 (drg) 中检查了RBRVS分析的10,431手术程序,和教学状况。假设预算中立 (即麻醉学服务的总支出恒定) 并使用建议的方法,我们模拟了rbrv和MDDRG付款,并将其与麻醉学服务的当前付款进行了比较。单个外科手术的持续时间显示出两到四倍以上的变化,伴随着麻醉学付款的类似变化。在DRGs中,持续时间变化为3到10倍,麻醉学付款变化为2到7倍。麻醉时间与手术时间高度相关 (r = 0.86-0.96)。与目前的系统相比,RBRVS和MDDRG系统与支付的系统性差异相关,因此平均而言,在每种情况下,在农村和非教学医院执业的麻醉师都会受益,而在城市或郊区和教学设施的麻醉师则会流失。在调整了手术的复杂性之后,付款损益的分布是手术持续时间的函数,不受外科医生的影响。给定手术程序的较长情况会导致付款减少。结果表明,在麻醉学服务的支付方法中保留时间因素以维持整个执业环境的公平支付的重要性-这是医生支付改革的目标。

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