Using body cameras to quantify the duration of a Code Stroke and identify workflow issues: a continuous observation workflow time study

Objective 'Code Stroke' (Code) is used in health services to streamline hyperacute assessment and treatment delivery for patients with ischaemic stroke. However, there are few studies that detail the time spent on individual components performed during a Code. We sought to quantify the time taken for each process during a Code and investigate associations with modifiable and non-modifiable factors. Design Continuous observation workflow time study. Setting and participants Recordings of 100 Codes were performed at a high-volume primary stroke centre in Melbourne, Australia, between January and June 2020 using a body camera worn by a member of the stroke team. Main outcome measures The main measures included the overall duration of Codes and the individual processes within the Code workflow. Associations between variables of interest and process times were explored using linear regression models. Results 100 Codes were captured, representing 19.2% of all Codes over the 6months. The median duration of a complete Code was 54.2min (IQR 39.1-74.7). Administrative work performed after treatment is completed (median 21.0min (IQR 9.8-31.4)); multimodal CT imaging (median 13.0min (IQR 11.5-15.7)), and time between decision and thrombolysis administration (median 8.1min (IQR 6.1-10.8)) were the longest components of a Code. Tenecteplase was able to be prepared faster than alteplase (median 1.8 vs 4.9min, p=0.02). The presence of a second junior doctor was associated with shorter administrative work time (median 10.3 vs 25.1min, p<0.01). No specific modifiable factors were found to be associated with shorter overall Code duration. Conclusions Codes are time intensive. Time spent on decision-making was a relatively small component of the overall Code duration. Data from body cameras can provide granular data on all aspects of Code workflow to inform potential areas for improvement at individual centres.