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OBJECTIVES: To compare health service utilization of patients interacting with a mobile integrated health care program consisting of advanced care paramedics delivering community paramedic care to people experiencing homelessness before and after their initial visit. METHODS: ED visits, physician claims, and pharmaceutical dispensations were compared in the year prior to and in the year following the initial community paramedic visit. Administrative databases were linked and utilization rates were calculated and analyzed between periods in this pre-post cohort study. RESULTS: The 1360 community paramedic patients included in this study had no significant change in ED visits (IRR: 1.02) following their initial visit. There were 17,699 ED visits in the pre-period and 18,398 visits in the post-period. There was an observed increase in rates of primary care physician claims (IRR 1.22) and pharmaceutical dispensations from community pharmacies (IRR 1.04). Patients who did not have pharmaceutical dispensations and those without physician claims in the pre-period were significantly less likely to not access these services in the post-period. CONCLUSIONS: In the year following the initial community paramedic visit there were small but significant increases in community-based care utilization of people experiencing homelessness. These data suggest that the continued development and implementation of paramedics as part of an interdisciplinary care team can increase access to care for a traditionally underserved population with complex health needs. Patients would likely benefit from the integration of community paramedics in community-based management that aim to improve access to care following ED visits.

RéSUMé: OBJECTIFS: Comparer l'utilisation des services de santé des patients interagissant avec un programme de soins de santé mobile intégrés composé d'ambulanciers paramédicaux de soins avancés fournissant des soins paramédicaux communautaires aux personnes sans domicile fixe avant et après leur visite initiale. MéTHODES: Les visites aux urgences, les demandes de remboursement des médecins et les prescriptions pharmaceutiques ont été comparées dans l'année précédant et dans l'année suivant la visite initiale du personnel paramédical communautaire. Les bases de données administratives ont été reliées, et les taux d'utilisation ont été calculés et analysés entre les périodes dans cette étude de cohorte avant et après. RéSULTATS: Les 1 360 patients paramédicaux communautaires inclus dans cette étude n'ont pas connu de changement significatif dans les visites aux urgences (IRR : 1,02) après leur visite initiale. Il y a eu 17 699 visites aux urgences dans la pré-période et 18 398 visites dans la post-période. On a observé une augmentation des taux de demandes de remboursement des médecins de soins primaires (IRR : 1,22) et des dispensations de produits pharmaceutiques par les pharmacies communautaires (IRR : 1,04). Les patients qui n'ont pas bénéficié d'une dispensation de produits pharmaceutiques et ceux qui n'ont pas fait l'objet d'une demande de remboursement par un médecin au cours de la période précédente étaient significativement moins susceptibles de ne pas avoir accès à ces services au cours de la période suivante. CONCLUSIONS: Au cours de l'année qui a suivi la première visite du personnel paramédical communautaire, on a constaté une augmentation faible mais significative de l'utilisation des soins communautaires par les personnes sans domicile. Ces données suggèrent que le développement et la mise en œuvre continus des ambulanciers paramédicaux au sein d'une équipe de soins interdisciplinaire peuvent accroître l'accès aux soins pour une population traditionnellement mal desservie et présentant des besoins de santé complexes. Les patients bénéficieraient probablement de l'intégration des ambulanciers communautaires dans la gestion communautaire qui vise à améliorer l'accès aux soins après une visite aux urgences.

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BACKGROUND AND PURPOSE: Carotid revascularization procedures can be complicated by stroke. Additional disability adds to the already high costs of the procedure. To weigh the cost and benefit, we estimated the cost-utility of carotid angioplasty and stenting compared with carotid endarterectomy among patients with symptomatic carotid stenosis, with special emphasis on scenario analyses that would yield carotid angioplasty and stenting as the cost-effective alternative relative to carotid endarterectomy. MATERIALS AND METHODS: A cost-utility analysis from the perspective of the health system payer was performed by using a Markov analytic model. Clinical estimates were based on a meta-analysis. The procedural costs were derived from a microcosting data base. The costs for hospitalization and rehabilitation of patients with stroke were based on a Canadian multicenter study. Utilities were based on a randomized controlled trial. RESULTS: In the base case analysis, carotid angioplasty and stenting were more expensive (incremental cost of $6107) and had a lower utility (-0.12 quality-adjusted life years) than carotid endarterectomy. The results are sensitive to changes in the risk of clinical events and the relative risk of death and stroke. Carotid angioplasty and stenting were more economically attractive among high-risk surgical patients. For carotid angioplasty and stenting to become the preferred option, their costs would need to fall from more than $7300 to $4350 or less and the risks of the periprocedural and annual minor strokes would have to be equivalent to that of carotid endarterectomy. CONCLUSIONS: In the base case analysis, carotid angioplasty and stenting were associated with higher costs and lower utility compared with carotid endarterectomy for patients with symptomatic carotid stenosis. Carotid angioplasty and stenting were cost-effective for patients with high surgical risk.

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