As EHRs move to the cloud, some worry that "care will stop if connectivity is lost." One approach that answers this is hybrid cloud, which combines the cloud with on-site equipment to stay resilient against failures.
This article organizes the mechanism of hybrid cloud and its benefits for hospitals, the difference from full cloud and how to choose, and the lens for selecting a foundation, so directors and IT staff can use it in their decisions.
Concerns over availability
The EHR underpins the core of care, and if it stops, it directly hits outpatient and ward operations. While cloud brings maintenance and cost benefits, many hospitals worry about the risk of it becoming unusable due to connectivity or provider-side failures.
Especially for hospitals serving as regional cores, readiness for disasters and connectivity loss is essential. How to secure availability while adopting cloud benefits is a major issue in choosing a system approach.
How hybrid cloud works
Hybrid cloud places data and functions in the cloud while keeping some equipment and data on-site. It normally leverages cloud benefits and aims for a design where care can continue locally during contingencies like connectivity loss.
By combining the cloud's scalability and maintainability with on-premise stability, it complements the weaknesses of both — that is its feature. However, the configuration tends to be complex, testing the design philosophy of setup and operation.
Benefits for hospitals
The hybrid approach pairs well with hospitals that prioritize business continuity. It is especially worth considering for core hospitals that cannot stop care, or areas with unstable connectivity. Its main benefits are as follows.
- Care is easier to continue during connectivity loss or failures
- You can leverage the ease of cloud maintenance and updates
- More options for disaster preparedness and backup
- It can serve as a landing spot for gradual cloud migration
A practical checklist at selection
Rather than deciding on the approach's appeal alone, concretely verifying fit with your situation matters. When choosing a foundation, confirming the following across IT and management prevents post-adoption friction.
- What range of care can continue locally during contingencies
- The burden and cost outlook for maintaining and updating on-site equipment
- Procedures and structure for data backup and recovery
- Status of security and guideline compliance
Common misconceptions and how to avoid them
Beware the misconception that "hybrid withstands any failure." Maintaining on-site equipment takes effort and cost, and the more complex the configuration, the harder operation becomes. Avoid excessive expectations.
Also, assuming "full cloud is dangerous" is one-sided. Connectivity and risk tolerance vary by hospital, and full cloud suits some cases. Choosing from your own conditions rather than starting with an approach is the safeguard.
Rules, guidelines, and information management
Medical information systems must address guidelines on security and information management. Since related guidance and rules may be revised, do not treat specific requirements as fixed; confirm the latest details with primary sources such as the MHLW.
When combining cloud, external services, or generative AI, confirm where patient data is stored and whether it is transmitted externally, and prevent leakage through operation per internal rules. Also review contractors' management structures.
A lens for choosing the foundation
Evaluate not only the approach itself but also security, guideline compliance, and operational ease. A foundation premised on compliance with the relevant guidelines, like the Sakigake Platform, makes it easier to weigh availability and safety together.
Ultimately, how to balance availability, cost, and operating burden is the axis of decision. Looking to your hospital's scale, role, and future expansion, choose an approach and foundation you can sustain without strain.
Operation and drills for contingencies
The value of hybrid cloud comes alive only when care can actually continue during a contingency. For that, documenting switchover procedures for connectivity loss or failure and drilling on them regularly in normal times is essential. Readiness that avoids being unable to act because no one knows the steps is the key to results worth the approach's complexity.
You also need to decide the owner and frequency for maintaining and updating on-site equipment and for data recovery. The more complex the configuration, the greater the operating burden, so whether you have a structure that can sustain it determines continuity. Confirm the following in normal times.
- Document switchover steps for outages and drill on them regularly
- Clarify the owner and frequency for on-site equipment upkeep
- Actually test data backup and recovery procedures
- Share the scope of care continued during contingencies across departments
Summary
A hybrid-cloud EHR balances the cloud's benefits with continuity during contingencies. Understand the difference from full cloud and, based on your connectivity, risk tolerance, and security requirements, choose a foundation you can operate sustainably.
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