ASA分级

ASA分级系统已经使用了60多年。该系统的目的是评估和传达麻醉前患者的合并症。单独的分级系统并不能预测围手术期的风险，但与其他因素（如手术类型、虚弱程度、失代偿程度）一起使用，它有助于预测围手术期风险。

2019年进行了修订

下表所示的定义和示例是作为临床医生的实践指南。为了改善特定机构的沟通和评估，麻醉科可以选择开发机构特定的例子来补充ASA示例。

下表中的示例针对成人患者，不一定适用于儿科或产科患者。

指定一个身体状态分类级别是一个基于多个因素的临床决策。虽然在术前评估病人的过程中，最初可能会在不同的时间确定身体状态分类，但最终的身体状态分类分配是由麻醉师在对病人进行评估后在实施麻醉当天进行的。

ASA Physical Status Classification System

(Approved by the ASA House of Delegates on October 15, 2014, and last amended on October 23, 2019)

The ASA Physical Status Classification System has been in use for over 60 years. The purpose of the system is to assess and communicate a patient’s pre-anesthesia medical co-morbidities. The classification system alone does not predict the perioperative risks, but used with other factors (eg, type of surgery, frailty, level of deconditioning), it can be helpful in predicting perioperative risks.

The definitions and examples shown in the table below are guidelines for the clinician. To improve communication and assessments at a specific institution, anesthesiology departments may choose to develop institutional-specific examples to supplement the ASA-approved examples. 

The examples in the table below address adult patients and are not necessarily applicable to pediatric or obstetric patients. 

Assigning a Physical Status classification level is a clinical decision based on multiple factors.  While the Physical Status classification may initially be determined at various times during the preoperative assessment of the patient, the final assignment of Physical Status classification is made on the day of anesthesia care by the anesthesiologist after evaluating the patient.