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Lung Capacity

Lung Capacity

The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.

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The Capacitated Maximal Covering Location Problem Improves Access to Stroke Treatment: A Cross-Sectional Simulation

Kyohei Bando¹, Kazuki Ohashi², Kensuke Fujiwara^2,3

¹Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan.

Health Services Insights

|August 2, 2024

Summary

Optimizing mechanical thrombectomy (MT) access in Hokkaido, Japan, requires strategic allocation of resources. This study identifies priority areas for enhancing stroke centers to improve patient coverage without increasing facility numbers.

Keywords:

Capacitated maximal covering location problem accessibility geographic information system healthcare decision-making healthcare services mechanical thrombectomy

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Area of Science:

Healthcare policy
Medical geography
Stroke treatment optimization

Background:

Disparities in advanced stroke treatment access pose a significant policy challenge globally.
Limited healthcare resources necessitate practical solutions for equitable treatment distribution.
Mechanical thrombectomy (MT) is a critical advanced stroke treatment.

Purpose of the Study:

To evaluate the supply and demand balance for MT in Hokkaido, Japan.
To identify priority areas for enhancing stroke centers.
To propose an optimal allocation of MT services without increasing medical facilities.

Main Methods:

Utilized the capacitated maximal covering location problem (CMCLP) model.
Simulated four scenarios with varying MT supply capacities and travel times (90 minutes).
Analyzed demand coverage and supply-demand balance.

Main Results:

Coverage increased from approximately 53% to 85% across scenarios 1-4.
Scenarios 2 and 3 showed a 5% oversupply, while scenario 4 had a 20% oversupply.
Eight primary stroke centers (PSCs) receiving 31+ patients were identified as priority enhancement targets.

Conclusions:

The CMCLP effectively estimates demand coverage and identifies areas for MT supply capacity enhancement.
Strategic resource allocation can improve MT access and address healthcare disparities.
Prioritizing specific stroke centers is crucial for optimizing MT service delivery.