I signed the purchase order in March 2019. Ten hemodialysis machines, all from the same vendor, all at a price that looked great on paper.
The installation, I assumed, was included.
It wasn't.
By the time those machines actually ran, I'd spent an extra $140,000 on water treatment upgrades, plumbing, electrical work, and room modifications. That's $14,000 in unplanned costs per machine. My boss didn't yell. She just handed me a budget variance report and walked away. Honestly? That was worse.
I'm the procurement coordinator at a mid-sized dialysis center, and I've been handling equipment orders for eight years. I've personally made—and documented—four significant mistakes totaling roughly $250,000 in wasted budget. Now I maintain our team's equipment checklist, and it's caught 47 potential errors in the past 18 months.
This article is the comparison I wish I'd had before I made those mistakes: peritoneal dialysis (PD) vs hemodialysis (HD), across the three dimensions that actually matter—clinical fit, total cost of ownership, and operational complexity.
Clinical Fit: Why PD Deserves More Respect Than It Gets
Hemodialysis uses a machine to filter blood externally. Patients come to the center three times a week, sit for three to four hours, and let the machine do the work. It's been the default for decades—not necessarily because it's better, but because it's what we've always done.
Peritoneal dialysis uses the patient's own peritoneum as a filter. With CAPD, they do manual exchanges four or five times a day. With APD, they connect to a cycler overnight and wake up dialyzed. Both happen at home, which sounds simpler—but I'll come back to that.
Here's the counterintuitive piece: the clinical outcomes are broadly comparable. The National Kidney Foundation's KDOQI guidelines stress that PD shouldn't be treated as a second-tier option. USRDS data from the 2024 Annual Data Report puts PD at around 13% of US dialysis patients, despite outcomes that match HD for most patients and quality-of-life measures that often favor PD. Patients on PD also tend to preserve residual kidney function longer, which is associated with better long-term outcomes.
I didn't believe this until I saw it with our own patients. A diabetic man in his sixties started PD in 2022. He travels, gardens, and told me he finally feels like a person again rather than a patient. Our in-center HD patients? A lot of them spend half their week in chairs and the other half recovering. The contrast hit me harder than any study could.
Total Cost of Ownership: The Quote Is Lying to You
This is where I have the scar tissue.
When you shop for hemodialysis machines, you're comparing base machine prices. But the machine is maybe 30% of the actual cost. Here's what vendors usually don't volunteer:
- Water treatment system: $80,000–$150,000 depending on your building's infrastructure.
- Plumbing and electrical upgrades: $20,000–$40,000, and that's if you're lucky.
- Room modifications: Even more if you're retrofitting an older space.
- Water quality testing and ongoing maintenance: The recurring cost that everybody forgets.
Peritoneal dialysis, by contrast, has a much lower upfront barrier. A cycler runs around $5,000, and most manufacturers lease or bundle it anyway. But PD's hidden costs are in supplies—dialysis solution bags, tubing, ancillaries—that add up month after month. And with the CMS ESRD Prospective Payment System as of January 2025 bundling most dialysis services into a per-treatment rate, the payment math matters more than ever.
The lesson I keep repeating to our team: ask "what's NOT included" before "what's the price."
In 2021, we bought our Nipro Surdial X machines. The base quote landed around $28K per unit—fairly typical. But this time, I made a point of reading the Nipro Surdial X user manual PDF before I signed anything. Right in the installation requirements section, there was a water quality spec: the unit needs specific conductivity and purity levels to run reliably. Our existing water treatment plant didn't meet it.
I caught it before signing. A potential $32K retrofit turned into a $9K upgrade because we addressed it during the build rather than after. In 2019, I'd chosen the vendor with the lowest quote that conveniently left out installation, training, and water system connection. The total came out 30% higher than the transparent quote from a different vendor. The vendor who lists everything upfront—even when the total looks higher—is the one who actually costs less in the end. That's not theory. That's the bill I paid.
Operational Complexity: It's Not the Machines, It's the System
Here's what I got wrong about day-to-day reality.
I assumed HD meant high operational complexity and PD meant low operational complexity. In reality, both are complex—just in completely different ways.
HD operations are centralized. You need a physical facility with treatment stations, reverse osmosis infrastructure, dialysis nurses, machine maintenance, and inventory management. You're also running a schedule that controls your patients' lives. Our center runs three shifts, and staffing is the single biggest recurring expense.
PD operations are decentralized. You're managing a fleet of home patients, which means training, home delivery logistics, and 24/7 on-call support. When a cycler alarms at 2 AM, someone has to answer the phone. When a monthly supply delivery is late, your phone starts ringing.
The surprise? PD isn't easier to manage. It's a different kind of hard. You're trading machine management for people management, and people management is messier.
How to Choose: Scenarios, Not "One Is Better"
If you're evaluating modalities for your center, here's the framework I use now. It's not about which modality wins. It's about which one wins for your situation.
Choose PD when your patients fit the home profile:
- They're motivated and have caregiver support (or are genuinely capable of self-managing).
- They have good vision, dexterity, and cognitive function.
- They want to keep working, traveling, or living unconstrained by fixed appointments.
- Your center has limited physical space to expand HD stations.
Choose HD when patients need the safety net:
- They have significant comorbidities that need close monitoring.
- They lack the physical or cognitive capacity for home dialysis.
- There's no reliable home environment or caregiver support.
- Your team is better equipped to deliver supervised in-center treatment.
And if you're building from scratch? Honestly, plan for both. The Advancing American Kidney Health initiative (Executive Order 13879, July 2019) pushed CMS to create financial incentives for home dialysis. A center that offers both modalities is better positioned for the next decade of renal care. The either/or mindset is increasingly outdated.
What I'd Do Differently (So You Don't Have To)
If you take nothing else from this, take this process. It's the checklist I maintain for our team:
- Run the patient analysis first. Know who your patients are and what they can handle before you look at any equipment.
- Compare total cost, not machine price. Make every vendor fill out a spreadsheet that includes installation, water treatment, training, and maintenance. If they won't, that's your answer.
- Read the manual before you talk to the sales rep. For our Nipro machines, the Surdial X user manual PDF was available on their site, and a fifteen-minute skim gave me the exact water quality specs that changed our installation budget by $23K.
- Ask about failure modes. What happens when the machine malfunctions? Who's on call? What's the actual response time? This is where the cheaper vendor often falls apart.
One more note about Nipro, since their name keeps coming up. If you've been researching nipro dialysis machines, you've probably noticed their renal care line is extensive. But the same company that makes the Surdial X also produces nebulizer machines, infusion pumps, diagnostic products, and even surgical robotics platforms. What made them the right call for us wasn't the breadth of the catalog, though. It's that their quote listed everything. The inconvenient stuff. The hidden fees. The things other vendors left for us to discover later.
That's the real lesson from my $250,000 of mistakes: the cheapest quote and the most expensive quote are usually the same thing, just with different accounting. Transparent pricing isn't a nice-to-have. It's the only way to make a purchase decision you won't have to defend in a budget review meeting.
I still kick myself for not learning this sooner. But if this comparison saves one procurement coordinator from digging the same hole, it's worth every word.
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