Video Surveillance of Hand Hygiene: A Better Tool for Monitoring and Ensuring Hand Hygiene Adherence

Compliance of healthcare workers in a psychiatric inpatient ward to infection control practices during the COVID-19 pandemic: a participant observation study supplemented with a self-reported survey

BACKGROUND

As an emerging infectious disease with a heterogenous and uncertain transmission pattern, coronavirus disease 2019 (COVID-19) has created a catastrophe in healthcare-associated infections (HAIs) and posed a significant challenge to infection control practices (ICPs) in healthcare settings. While the unique characteristics of psychiatric patients and clinical settings may make the implementation of ICPs difficult, evidence is lacking for compliance with ICPs among healthcare workers (HCWs) in a psychiatric setting during the COVID-19 pandemic.

METHODS

A cross-sectional multi-method study based on participant unobtrusive observation coupled with the completion of a self-administered ICP survey was conducted to assess compliance with ICPs among HCWs in a psychiatric inpatient ward in a regional hospital. An online checklist, called eRub, was used to record the performance of HCWs in hand hygiene (HH) and other essential ICPs. Furthermore, a well-validated questionnaire (i.e., Compliance with Standard Precautions Scale, CSPS) was used to collect the participants' self-reported ICP compliance for later comparison.

RESULTS

A total of 2,670 ICP opportunities were observed from January to April 2020. The overall compliance rate was 42.6%. HCWs exhibited satisfactory compliance to the wearing of mask (91.2%) and the handling of clinical waste (87.5%); suboptimal compliance to the handling of sharp objects (67.7%) and linen (72.7%); and poor compliance to HH (3.3%), use of gloves (40.9%), use of personal protective equipment (20%), and disinfection of used surface/area (0.4%). The compliance rates of the nurses and support staff to HH were significantly different (χ2 = 123.25, p < 0.001). In the self-reported survey, the overall compliance rate for ICPs was 64.6%.

CONCLUSION

The compliance of HCWs in a psychiatric inpatient ward to ICPs during the COVID-19 pandemic ranged from poor to suboptimal. This result was alarming. Revisions of current ICP guidelines and policies that specifically target barriers in psychiatric settings will be necessary.

Difference between self-reported adherence to standard precautions and surveillance and factors influencing observed adherence: a quantile regression approach

Background

Standard precautions are minimum healthcare-associated infection prevention practices applied in all healthcare settings. The aim of this study was to investigate adherence to standard precautions using a survey and surveillance. Factors affecting observed adherence to standard precautions were also determined.

Methods

This cross-sectional observational study included 163 clinical nurses who were directly involved in patient care. Differences in adherence according to investigative methods are represented as a boxplot. Quantile regression was used to identify factors affecting observed adherence, including organizational factors (such as department, safety environment, and patient safety climate) and personal factors (such as knowledge and awareness). Stata SE version 14.2 was used for all statistical analyses.

Results

The observed adherence to standard precautions was 76.8 out of 100, whereas the self-reported adherence was approximately 95. Hand hygiene adherence received the lowest score of less than 70. Factors influencing observed adherence were self-reported adherence (p = 0.043) in 25% and 50% quantiles, work experience (p = 0.002) in the 25% quantile, and working department (p = 0.030) in the 50% quantile. There were no significant factors in the 75% quantile.

Conclusion

Inadequate adherence to standard precautions might increase healthcare-associated infections. Thus, an organizational environment such as nurse staffing needs to be established so that clinical nurses with high competency can comply with standard precautions in clinical settings.

Automatic detection of hand hygiene using computer vision technology

OBJECTIVE

Hand hygiene is essential for preventing hospital-acquired infections but is difficult to accurately track. The gold-standard (human auditors) is insufficient for assessing true overall compliance. Computer vision technology has the ability to perform more accurate appraisals. Our primary objective was to evaluate if a computer vision algorithm could accurately observe hand hygiene dispenser use in images captured by depth sensors.

MATERIALS AND METHODS

Sixteen depth sensors were installed on one hospital unit. Images were collected continuously from March to August 2017. Utilizing a convolutional neural network, a machine learning algorithm was trained to detect hand hygiene dispenser use in the images. The algorithm's accuracy was then compared with simultaneous in-person observations of hand hygiene dispenser usage. Concordance rate between human observation and algorithm's assessment was calculated. Ground truth was established by blinded annotation of the entire image set. Sensitivity and specificity were calculated for both human and machine-level observation.

RESULTS

A concordance rate of 96.8% was observed between human and algorithm (kappa = 0.85). Concordance among the 3 independent auditors to establish ground truth was 95.4% (Fleiss's kappa = 0.87). Sensitivity and specificity of the machine learning algorithm were 92.1% and 98.3%, respectively. Human observations showed sensitivity and specificity of 85.2% and 99.4%, respectively.

CONCLUSIONS

A computer vision algorithm was equivalent to human observation in detecting hand hygiene dispenser use. Computer vision monitoring has the potential to provide a more complete appraisal of hand hygiene activity in hospitals than the current gold-standard given its ability for continuous coverage of a unit in space and time.

Sustaining compliance with hand hygiene when resources are low: A quality improvement report

Background

Sustainability of hand hygiene is challenging in low resource settings. Adding ownership and goal setting to the WHO-5 multimodal intervention may help sustain high compliance.

Aim

To increase and sustain compliance of nursing and medical staff with hand hygiene in a tertiary referral center with limited resources.

Methods

A quality improvement initiative was conducted over two years (2016–2018). After determining baseline compliance rates, the WHO-5 multimodal intervention was implemented with staff education and training, system change, hospital reminders, direct observation and feedback, and hospital safety climate. Additionally, the medical staff was responsible for continuous surveillance of compliance (ownership) until rates above 90% were achieved and sustained (goal setting).

Results

Of 2987 observations collected between August 2016 and April 2018, 1630 (54.5%) were before, and 1357 (45.5%) were after patient encounters. The average overall compliance with hand hygiene was sustained at 94% for nursing and medical staff. Two instances of drops below 90% were associated with incidence of nosocomial Rotavirus infections. There were no similar infections during intervention periods with compliance rates above the set goal. Analysis using p-charts revealed significant improvement in compliance rates from baseline (χ² (1) = 7.94, p = 0.005).

Conclusion

Adding ownership and goal setting to the WHO-5 multimodal intervention may help achieve, and sustain high rates of compliance with hand hygiene. Involving health care workers in quality improvement initiatives is feasible, durable, reliable, and cheap, especially in settings with limited financial resources.

Conocimiento y cumplimiento del cuidado de catéteres centrales en un Hospital Mexicano

Introducción: El uso de catéteres intravasculares constituye una herramienta fundamental para el cuidado de los pacientes, mismos que han sido asociados a las bacteriemias nosocomiales entre un 15 y 30%. El objetivo de estudio fue determinar el nivel de conocimiento y cumplimiento del personal de enfermería respecto al protocolo de cuidados de accesos vasculares centrales. Materiales y métodos: estudio descriptivo, transversal, observacional, que incluyó a 67 profesionales de enfermería que tuvieron a su cuidado pacientes con catéter venoso central. Para la recolección de datos se utilizaron dos instrumentos diseñados a partir del protocolo de cuidados emitido por la Comisión Permanente de Enfermería. Resultados: Se encontró personal con antigüedad laboral promedio de 7.9 años. En conocimiento el 58.2% se ubicó en categoría Conoce, en contraste con el cumplimiento resultando el 91% del personal en categoría Cumple. No hubo correlación entre conocimiento y cumplimiento (rho = -0.181, p = 0.797). Discusión: El cumplimiento contrastó con el conocimiento, sin embargo, los enunciados para ambas variables se relacionaron con la falta de lavado de manos, dejar el tiempo adecuado de los antisépticos y la desinfección de lúmenes a la hora de la manipulación. Conclusiones: La falta de conocimiento y cumplimiento de elementos del protocolo se relacionan directamente con situaciones procedimentales que realiza el profesional de enfermería, por lo que la falta de material e insumos no son factores para no seguir la estandarización del cuidado.