Implementation of Evidence-Based Practice for Dizziness

NCT ID: NCT05634902

Last Updated: 2025-03-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

80000 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-11-11

Study Completion Date

2025-03-31

Brief Summary

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The study evaluates the implementation of evidence-based practice for the management of patients with dizziness in the emergency department (ED) within a large integrated health care system. The clinical focus is on benign paroxysmal positional vertigo (BPPV), unilateral vestibulopathy (e.g., vestibular neuritis), and stroke - which are disorders with established evidence-base practices for evaluation and management. Evidence-based practices for these clinical topics have not properly disseminated regarding dizziness visits, and this results in missed opportunities for effective and efficient care delivery.

The investigators propose a hybrid type 3 effectiveness-implementation trial to evaluate an enhanced BPPV-centric implementation strategy and clinical intervention. The overall strategy, initially developed in Dizziness Treatment through Implementation \& Clinical strategy Tactics-1 (DIZZTINCT-1), will be improved to increase generalizability, convenience, exposures, sustainability, and dissemination. We use an innovative design of a stepped-wedge trial for the ED-level implementation strategy and an embedded randomized patient-level dissemination strategy. As a result, we can closely assess the individual and additive impact of study components. We will evaluate effectiveness of the implementation strategy and also confirm clinical outcomes.

Detailed Description

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Current management of dizziness in the ED often leads to expensive, time consuming, and unnecessary tests, but not appropriate evidence-based and guideline concordant evaluation \& management. The Dix-Hallpike Test (DHT) and Canalith Repositioning Maneuver (CRM) are used to diagnose and treat Benign Paroxysmal Positional Vertigo (BPPV). BPPV processes have an evidence base that is at the clinical practice guideline level. The DHT is the gold standard test for DHT and the CRM is supported by numerous randomized controlled trials and systematic reviews. Gaze stabilization exercises are also evidence-based treatment for unilateral vestibulopathy.

The problem is that evidence based processes of care for dizziness visits are frequently underutilized.

An ED- level stepped wedge randomized clinical trial with an embedded patient- level randomized controlled dissemination strategy will be used to increase the use of evidence based care using a theory-based education intervention within a large integrated health care system.

The trial will begin with an initial no intervention period followed by a randomized staggered intervention at the 14 EDs in 11 waves (some medical centers will be paired based on the medical service area). The physician-based intervention consists of a recorded continuing medical education (CME) session, a mobile responsive website with the recommended algorithm of care, print materials (posters and note cards) and a dot phrase for dizziness. We will evaluate documentation of the DHT and CRM in approximately 80,000 dizziness visits.

Concurrently, eligible patients with a dizziness-related emergency department visit will be identified from the electronic medical records (EMR) system before and after the physician level intervention is implemented at each ED. Enrolled subjects will be randomized individually to the intervention or control arm using central computerized randomization. The patient-based intervention includes patient-oriented materials focused on evidence based care incorporated into a patient-specific website. We plan to have 800 patients for the analysis.

The primary outcome for the ED-level implementation strategy is DHT or CRM documentation. The primary outcome measure for the patient-level intervention is the Dizziness Handicap Inventory (DHI).

The overall potential public health impact of improved ED dizziness care is substantial based on the volume of visits, underuse of effective management, and inefficiencies from overuse of typically unnecessary tests.

Conditions

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BPPV Vestibular Diseases Vertigo Dizziness

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

SINGLE

Participants

Study Groups

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Group 1: Pre-CME with Patient Education

Physicians in hospitals that have not received the DIZZTINCT educational intervention.

Patients have received the DIZZTINCT educational intervention

Group Type EXPERIMENTAL

Study Developed Educational Materials for Patients

Intervention Type BEHAVIORAL

Patient-oriented materials are incorporated into a mobile responsive website with information/instruction about BPPV, and self-management resources; information/instruction on gaze stabilization exercises for vestibular neuritis

Group 2: Pre-CME with Standard Patient Care

Physicians in hospitals that have not received the DIZZTINCT educational intervention.

Patients have not received the DIZZTINCT educational intervention

Group Type NO_INTERVENTION

No interventions assigned to this group

Group 3: Pre-CME with Chart Review Only

Physicians in hospitals that have not received the DIZZTINCT educational intervention.

Eligible patient will have their medical records abstracted to assess the main study outcome

Group Type NO_INTERVENTION

No interventions assigned to this group

Group 4: Post-CME with Patient Education

Physicians in hospitals that have received the DIZZTINCT educational intervention.

Patients have receive the DIZZTINCT educational intervention

Group Type EXPERIMENTAL

CME Educational Intervention

Intervention Type BEHAVIORAL

The educational materials for physicians include a recorded CME session, a mobile responsive website with the recommended algorithm of care, print materials (posters and note cards) and a dot phrase for dizziness.

Study Developed Educational Materials for Patients

Intervention Type BEHAVIORAL

Patient-oriented materials are incorporated into a mobile responsive website with information/instruction about BPPV, and self-management resources; information/instruction on gaze stabilization exercises for vestibular neuritis

Group 5: Post-CME with Standard Patient Care

Physicians in hospitals that have received the DIZZTINCT educational intervention.

Patients have not receive the DIZZTINCT educational intervention

Group Type EXPERIMENTAL

CME Educational Intervention

Intervention Type BEHAVIORAL

The educational materials for physicians include a recorded CME session, a mobile responsive website with the recommended algorithm of care, print materials (posters and note cards) and a dot phrase for dizziness.

Group 6: Post-CME with Chart Review Only

Physicians in hospitals that have received the DIZZTINCT educational intervention.

Eligible patient will have their medical records abstracted to assess the main study outcome

Group Type EXPERIMENTAL

CME Educational Intervention

Intervention Type BEHAVIORAL

The educational materials for physicians include a recorded CME session, a mobile responsive website with the recommended algorithm of care, print materials (posters and note cards) and a dot phrase for dizziness.

Interventions

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CME Educational Intervention

The educational materials for physicians include a recorded CME session, a mobile responsive website with the recommended algorithm of care, print materials (posters and note cards) and a dot phrase for dizziness.

Intervention Type BEHAVIORAL

Study Developed Educational Materials for Patients

Patient-oriented materials are incorporated into a mobile responsive website with information/instruction about BPPV, and self-management resources; information/instruction on gaze stabilization exercises for vestibular neuritis

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Age \>= 18 years
* Dizziness diagnosis as the primary discharge diagnosis (ICD-10 codes: R42.xx "Dizziness"; H81.xx "Disorders of vestibular system" (e.g., BPPV, vestibular neuritis); H82.xx "Other vertiginous syndromes"; H83.xx "Other diseases of inner ear"; R26.0 "Ataxic gait"; R26.2 "Difficulty in walking"; R26.81 "Unsteadiness on feet"; R26.89 "Other abnormalities of gait"; R27.xx "Other lack of coordination"; A88.1 "Epidemic vertigo")
* Discharged home from ED or Observation from one of 14 Kaiser Permanente Southern California (KPSC) Emergency Departments within the last 48 hours (Enrolled population)
* Continuous health plan membership in the last 31 days prior to the encounter
* English or Spanish speaker

Exclusion Criteria

* Prisoners
* Death
* Level 1 trauma diagnosis
* Previously enrolled in study
* Does not demonstrate capacity to consent assessed by the Older Adults' Capacity to Consent to Research (OACCR) scale48
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institute on Deafness and Other Communication Disorders (NIDCD)

NIH

Sponsor Role collaborator

Kaiser Permanente

OTHER

Sponsor Role collaborator

University of Michigan

OTHER

Sponsor Role collaborator

Ohio State University

OTHER

Sponsor Role lead

Responsible Party

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Kevin Kerber

Professor, Co-Director of Health Services Research

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Kevin Kerber, MD

Role: PRINCIPAL_INVESTIGATOR

Ohio State University

Will Meurer, MD

Role: PRINCIPAL_INVESTIGATOR

University of Michigan

Huong Nguyen, PhD

Role: PRINCIPAL_INVESTIGATOR

Kaiser Permanente

Locations

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Kaiser Permanente Southern California

Pasadena, California, United States

Site Status

Countries

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United States

References

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Meurer WJ, Park S, Nguyen H, Paz SR, Jancis MO, Bacerdo J, Baecker AS, Manthena P, Sangha NS, Zheng C, An LC, Fife TD, Sharp AL, Burke JF, Kerber KA. DIZZiness treatment through implementation and clinical strategy Tactics-2 (DIZZTINCT-2) project-a clinical trial protocol. Trials. 2025 Sep 29;26(1):378. doi: 10.1186/s13063-025-09055-7.

Reference Type DERIVED
PMID: 41024017 (View on PubMed)

Other Identifiers

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R01DC012760-08

Identifier Type: NIH

Identifier Source: secondary_id

View Link

KPSC IRB 12548

Identifier Type: -

Identifier Source: org_study_id

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