Background and rationale
Over the last two decades, a number of nurse-led care models have been developed and
proven to be effective in reducing unplanned hospital transfers of residents in LTCFs
with a range between 6.1% to 11.7% reduction in unplanned transfers and 30% reduction in
overall transfers.
Particularly, nurse-led care models include nurses in expanded roles who take the lead in
handling resident situations, coaching and empowering care teams and fostering
interprofessional collaboration to support decision-making concerning transfers to the
hospital. Most models have in common a multidisciplinary team including skilled medical
providers such as geriatricians, specialist nurses, or registered nurses (RNs) with
additional training, comprehensive geriatric assessment, root-cause analysis or
benchmarking of hospitalizations, and individualized care planning (i.e., advance care
planning).
In Switzerland, our research group recently developed and tested a nurse-led care model
in Swiss nursing homes: improving INTERprofessional CARE for better resident outcomes
(i.e. the INTERCARE study), which presented a pilot effort to develop evidenced-based
knowledge regarding the effect of this model of care in Swiss LTCFs on avoidable
hospitalizations. The INTERCARE model included six core components to be implemented by
participating LTCFs: 1) strengthening interprofessional collaboration, 2) introducing an
INTERCARE nurse, a registered nurse trained in geriatric knowledge and skills to take up
an expanded role, 3) promoting comprehensive geriatric assessment, 4) introducing
evidence-based tools to strengthen the communication within the care team (the STOP&WATCH
tool) and with general practitioners (the ISBAR tool), 5) introducing advance care
planning, and 6) applying data-driven quality improvement. Introduction of the INTERCARE
model within a facility is aimed to drive organizational change in LTCFs by skilling-up
key staff like the INTERCARE nurse and introducing new processes and tools.
The INTERCARE study was evaluated using a hybrid-type II implementation effectiveness
design, which simultaneously evaluated the effectiveness of the intervention by
determining the clinical effectiveness of the model on unplanned transfers as well as to
collect information about the effectiveness of implementation strategies. Overall
findings demonstrated that the model was effective in reducing unplanned hospital
transfers from LTCFs with high acceptability and sustainability amongst facilities but
also with high-cost demands for both the LTCFs and the research team in view of the time
invested to implement the model. More general information about the INTERCARE model can
be found via the following website: https://intercare.nursing.unibas.ch.
The proposed INTERSCALE study is a next step to reach scalability of the INTERCARE model
using a more cost-effective approach which can support the large-scale implementation of
this intervention. In this study, the investigators focus on the organizational level to
test the scalable unit (the INTERCARE model + the implementation strategies) and to
further assess whether an adapted set of implementation strategies can be used by LTCFs
to achieve similar implementation outcomes to the original study.
Specifically, implementation strategies can be understood as techniques that can help to
enhance the adoption, implementation, and sustainability of evidence-based interventions
such as the INTERCARE model. As part of the study, various strategies will be used at
different study phases and will be tailored for the different levels of participants.
Some examples of strategies to be used during the study preparation phase will include
organising meetings with LTCF leadership and requesting interested facilities to sign a
voluntary agreement regarding their participation in the study. During the implementation
phase, the investigators will use blended learning modules to support INTERCARE nurses
and LTCF leadership as well as provide periodical benchmarking and feedback for the
facility. Some examples of strategies to be used during the sustainment phase will
include helping facilities to organize quality monitoring systems and learning
collaboratives for ensuring successful long-term implementation of the INTERCARE model
within the facility.
Research Objectives:
Primary research objective: To compare the original and adapted set of implementation
strategies in view of overall intervention fidelity to the INTERCARE model (aim 1).
Secondary research objectives:
Further implementation outcomes: To compare the original and adapted set of
implementation strategies in view of further implementation outcomes (e.g., fidelity
to the six single core components of the INTERCARE model, acceptability,
feasibility, sustainability, and costs of implementation strategies) (aim 2.1).
Cost-effectiveness: to perform a cost-effectiveness analysis in view of unplanned
transfers of LTCF residents, while comparing two sets of implementation strategies
(aim 2.2).
Clinical effectiveness:To assess the impact of the original and adapted set of
implementation strategies on unplanned transfers of LTCF residents (aim 2.3a).
Organizational outcomes: To assess the impact of the two sets of implementation
strategies on several organizational outcomes (aim 2.3b).
Study design
An effectiveness-implementation hybrid type III design with a cluster-randomized
controlled trial will be applied to test the scalable unit of the INTERCARE model in
LTCFs in the Swiss-German speaking region. A sample of n=40 LTCFs will be randomized to
either the original or the adapted set of implementation strategies (20 LTCFs per arm)
offered by the research team, which will be implemented in up to 5 separate groups
consisting of 6-10 LTCFs using a stepped start.
Study timeline
The study will start with a preparation phase of 2 months where LTCFs are introduced to
the model and participate in preparatory workshops to prepare for the implementation of
the intervention (i.e., the INTERCARE model). After the preparation phase, the following
time points will ensue:
1 month get-in period (T0)
12 months of intervention phase (four data collection time-points, every three
months after T0)
12 months of sustainment phase (four data collection time-points, every three months
after the intervention phase)