Rationing letters went out in March
In early March 2026, Christchurch Hospital’s kidney department did something that should alarm anyone who employs people in the South Island. Department head Dr Penny Hill wrote to patients warning that haemodialysis treatment may need to be rationed because there was no longer adequate space or staff. If interim measures failed, patients could be dropped from three sessions a week to two.
Health NZ called the prospect “suboptimal care” and a “last resort.” The Association of Salaried Medical Specialists was blunter: “This is a national problem.”
It is. And the part nobody in the health debate is discussing is what happens to the employers, small businesses, and families who organise their lives around a treatment schedule that the system can no longer reliably deliver.
The numbers behind the overload
New Zealand now has approximately 3,500 patients on dialysis. Registry data from the ANZDATA Annual Report 2024 showed haemodialysis patient numbers grew 22% between 2019 and 2023, from 2,019 to 2,457. Infrastructure investment did not keep pace. A 2023 Kidney Health New Zealand report found 1,980 patients competing for weekly capacity designed for 1,764 across just 15 units and 441 outpatient spaces.
By early 2026, several large centres were running four patients per machine in 24-hour periods to cope. That is not surge management. That is a system structurally running beyond its design limits.
The ANZDATA/ANZSN special report on unit capacity from August 2025 surveyed over 90% of adult public nephrology units across Australia and New Zealand. Among NZ units, 87% expressed concern about their ability to provide adequate services. Sixty-eight percent lacked capacity to accommodate patients at preferred locations. Fifty-eight percent had patients receiving treatment out of area. And half of all NZ units reported that capacity restrictions had resulted in patient harm.
Overnight slots and two-hour drives are not hospital problems alone
Dialysis requires 15 to 30 hours per week connected to a machine, typically across three sessions. Around 400 people sit on the kidney transplant waiting list, meaning most patients will be on treatment indefinitely.
When a system at capacity shunts patients into overnight sessions, the downstream effects are immediate. A worker shifted from a daytime slot to an overnight one loses sleep and functional capacity the next day. A patient displaced to an out-of-area facility loses hours to travel. Janet McDonald from Timaru drives over two hours to Christchurch whenever her home dialysis equipment has issues.
For employers, this is not abstract. Family members absorb transport, supervision, and care coordination, generating caregiver absenteeism among staff who are not themselves patients. Māori and Pacific workers are disproportionately represented in the dialysis population and more likely to be in essential, shift-based, or physically demanding roles where scheduling conflicts are hardest to accommodate. Diabetes and high blood pressure account for around 70% of kidney failure cases, and the communities most affected are the ones least served by existing infrastructure.
For a small business owner or key employee on dialysis three times a week, treatment instability is a structural vulnerability. None of this cost is currently quantified in public reporting.
Home dialysis was supposed to be the pressure valve
Home haemodialysis could ease centre congestion, and New Zealand historically led the world in home dialysis uptake. But 75% of kidney units now have waiting lists for home dialysis training. In Christchurch, nurse Tracey Cloughly has access to only two training rooms for peritoneal dialysis, with waits stretching from three weeks to three months. The escape route is blocked.
In 2023, Professor Rob Walker, then head of Nephrology for Te Whatu Ora Southern, described the coping mechanisms: “Some units are reducing staff-to-patient ratios, asking staff to work overtime and double shifts, and stopping home dialysis training to get by.” Units are cannibalising the long-term fix to manage today’s overload.
A plan that may not match the problem
Health NZ’s Chief Clinical Officer Dr Richard Sullivan acknowledged underfunding in March: “There’s no doubt in some districts there has been underfunding and there is clear needs.” A national renal replacement plan is reportedly close to completion.
The immediate Canterbury response tells you something about the likely scale of ambition: one senior medical officer and six FTE nurses. Meanwhile, Kidney Health New Zealand General Manager Madi Keay warns of a 30% demand increase over the next decade without matching increases in resourcing. Dr Curtis Walker has put a price on the trajectory: an additional $150 million a year within ten years.
Businesses do not get to wait for that plan. Every week a patient is pushed into an overnight slot or displaced to a facility two hours away, the cost lands on a workplace, a family, or both. The health system’s capacity failure is already a workforce problem. It just has not been costed as one.
Sources
- 1News: Christchurch dialysis patients told treatment could be rationed (2026-03-07)
- 1News: Health NZ acknowledges kidney disease care is underfunded (2026-03-30)
- ANZDATA & ANZSN Special Report: Unit Survey 2024 – Haemodialysis Capacity (2025-08-21)
- Kidney Health NZ: Health professionals are warning NZ’s kidney dialysis system is at breaking point (2023-06-29)
- Scoop: Urgent call to prioritise kidney disease as dialysis demand soars (2026-03-03)
- NZ Doctor: Urgent call to prioritise kidney disease as dialysis demand soars (2025-03-12)