Lean healthcare: patient flow in hospitals and clinics

In a hospital, much of the waiting happens between steps of care: for a bed, a result, a transfer or a signature. Lean looks at that flow with the people who work in it, without touching clinical decisions.

In short

Lean healthcare applies Lean principles to the processes around care: admissions, patient flow, operating theatre scheduling, laboratory turnaround and discharge. It aims to remove waits and handovers that add no value for the patient, and it leaves clinical judgement to clinical staff.

Typical improvement problems

Waiting times in the emergency department

Patients wait between triage, assessment, tests and a decision, and part of that wait comes from beds that are not yet free elsewhere in the hospital.

Late discharges

Discharges that happen late in the day delay admissions from the emergency department and the operating theatre, and the whole flow slows down.

Operating theatre turnaround

The time between one procedure and the next depends on cleaning, preparation, porters and paperwork that are not always coordinated.

Laboratory turnaround

A result can wait at several points, from sample collection and transport to reception, analysis and validation, before it reaches the team that requested it.

Tools that fit

Voice of the customerBrings in what patients, families and staff expect from the process, so the project improves what matters to them and not only what is easy to measure.Value stream mapFollows the patient or the sample step by step and makes visible the waits between departments, which no single team sees on its own.KPIsAgrees a few process indicators, such as waiting or turnaround times, with a clear definition and baseline before anything changes.Ishikawa diagramGathers the causes of a delay from every role involved, from admissions and nursing to porters, pharmacy and the laboratory.A3Fits the whole problem, the analysis and the countermeasures on one page, which suits busy wards and short review meetings.

A typical DMAIC project

Bringing discharges earlier in the day on a medical ward

1Define: the ward team, with management support, writes the charter. The problem is discharges that happen late in the day and hold up admissions; the scope is the discharge process of one ward, with clinical decisions explicitly outside it.
2Measure: for a representative period, the team records when the discharge decision is made, when each step is completed and when the patient leaves the bed.
3Analyze: the value stream map and an Ishikawa diagram show the waits between the decision and departure, such as discharge reports, medication from pharmacy or transport arranged on the day.
4Improve: the team tests changes to the process, such as planning likely discharges the day before, preparing paperwork in advance and agreeing pharmacy and transport times. Each change is tried on a small scale before it is extended.
5Control: the ward reviews discharge times regularly, the control plan names an owner for each step, and the new routine is part of the induction of new staff.

Common KPIs

Waiting time to first assessmentAverage length of stayDischarges completed before middayOperating theatre turnaround timeLaboratory turnaround time

Frequently asked questions

Does Lean in healthcare change clinical decisions?

No. It works on the process around care, such as flow, waits and handovers. Clinical decisions remain with clinical staff.

Who should take part in a Lean hospital project?

The people who carry out the process every day: nursing, medical staff, admissions, porters, pharmacy or laboratory, depending on the flow. Their knowledge of the process is the starting point.

Can a hospital team run its project in LeanOS?

Yes. LeanOS organises a DMAIC project with charter, KPIs and actions linked, roles per company and project, and the free plan covers one project.

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