Valenstein P, Treling C P, Aller R D
Department of Pathology, St. Joseph Mercy Hospital, Ann Arbor, Michigan, USA.
Arch Pathol Lab Med. 1996 Jul;120(7):626-32.
To determine the frequency, duration, and impact of computer downtime on laboratory operations.
Four hundred twenty-two laboratories monitored the frequency of computer system downtime and other computer malfunctions over a period of 30 days. Participants classified each instance of unavailability according to its cause, duration, and consequences. In all, data from 11 967 instances were submitted for analysis.
During the 30-day study period, the participating institutions experienced a median of eight episodes in which all or a primary computer function was unavailable. The cumulative median duration of downtime during these 30 days was 14.3 hours. The most unfortunate 10% of participants reported having 44 or more episodes in which all or a primary computer function was lost during the 30 days, for a cumulative duration of 77.7 or more hours of system unavailability. Computer installations that served two or more full-service laboratories were significantly more likely to experience unscheduled loss of all or a primary computer function than were sites that served only one laboratory, and unscheduled events were more likely to be of longer duration. Participants reported that 1.3% of downtime events required the use of staff overtime to perform required work. Overtime was more likely with longer-than-average periods of downtime and losses that had not been scheduled. Of all the downtime instances, 0.2% led to the release of inaccurate results, and 0.1% led to an adverse clinical outcome. These events were associated with software failure, unscheduled downtime, a site's overall frequency of downtime, particular software vendors, and not having installed a software patch in the previous 1000 days.
The frequency of laboratory computer downtime varies widely among institutions and is occasionally associated with adverse clinical outcomes or additional staff expense.
确定计算机停机对实验室操作的频率、持续时间及影响。
422个实验室在30天内监测计算机系统停机频率及其他计算机故障。参与者根据停机原因、持续时间和后果对每次不可用情况进行分类。总共提交了11967个实例的数据进行分析。
在为期30天的研究期间，参与机构经历的所有或主要计算机功能不可用的事件中位数为8次。这30天内停机的累计中位数持续时间为14.3小时。最不幸的10%的参与者报告在30天内有44次或更多次所有或主要计算机功能丧失的情况，系统不可用的累计持续时间为77.7小时或更长。为两个或更多全方位服务实验室提供服务的计算机设施比只为一个实验室提供服务的场所更有可能经历所有或主要计算机功能的意外丧失，且意外事件更有可能持续更长时间。参与者报告称，1.3%的停机事件需要工作人员加班来完成所需工作。停机时间长于平均水平以及计划外的损失更有可能导致加班情况。在所有停机实例中，0.2%导致了不准确结果的发布，0.1%导致了不良临床结果。这些事件与软件故障、计划外停机、场所的总体停机频率、特定软件供应商以及在过去1000天内未安装软件补丁有关。
各机构实验室计算机停机频率差异很大，偶尔会与不良临床结果或额外的人员费用相关。
