Dialysis in the Elderly: Which Type Is the Safer Option?
- Chonnikan M.
- May 9
- 7 min read
Did your father, mother, or someone you love just receive the diagnosis — "kidney failure, you need dialysis" — and did your heart just sink?
Many families with elderly loved ones face this moment filled with worry, fear, and unanswered questions — especially when the doctor says dialysis must begin soon, forcing the family to make a decision under pressure, without yet understanding: "Which type of dialysis is most suitable for the elderly?"
The truth is, elderly patients have physical conditions that differ from those of other age groups — such as more fragile hearts, blood vessels, and blood pressure — making the choice of dialysis method far from a simple decision. In this article, Pattaya Dialysis will guide you through all the available options, along with the pros and cons you need to know before deciding — because choosing the right method is the best way to care for the life of someone you love.
Kidney Disease in the Elderly: Why It Is More Common Than You Think
As people age, the kidneys naturally decline in function. On average, kidney function in elderly individuals decreases by approximately 1% per year after the age of 40. However, what accelerates kidney deterioration in older adults are the chronic conditions that often occur alongside aging, including:
Diabetes, which is the number one cause of chronic kidney failure in Thailand
High blood pressure, which silently damages the blood vessels in the kidneys over many years
Cardiovascular disease, which reduces adequate blood supply to the kidneys
A large proportion of patients with End-Stage Renal Disease (ESRD) in Thailand are elderly individuals aged 60 and above. Once that stage is reached, Renal Replacement Therapy becomes a necessary measure to sustain life.
What Is Dialysis and Why Should the Elderly Be Especially Cautious?
Dialysis is the process of cleaning the blood in place of kidneys that can no longer function normally — removing waste products, excess fluid, and toxins that accumulate in the body, which, if left untreated, can be life-threatening.
There are currently two main methods of dialysis:
Hemodialysis (HD) — performed at a clinic or hospital using an artificial kidney machine
Peritoneal Dialysis (PD) — can be performed at home
Both methods have their own advantages and disadvantages, and choosing the right one for each elderly patient requires careful consideration.
Method 1: What Is Hemodialysis (HD)?
Hemodialysis — commonly referred to simply as "dialysis" — is the process of drawing blood out of the body and passing it through a special filtering device called a Dialyzer, which removes waste products and excess fluid before returning the cleaned blood back into the body.
How Does the Hemodialysis Process Work?
In general, patients must visit a clinic or dialysis center 3 times per week, with each session lasting 4–5 hours. During this time, patients can rest, read, or watch television.
To allow safe and easy access to the bloodstream, a surgeon will create a vascular access point known as an AV Fistula in the patient's arm, which typically requires 1–3 months before it is ready for use.
Advantages of Hemodialysis for the Elderly
A medical team of doctors and nurses provides close monitoring during every session
Abnormalities can be detected and addressed immediately
Family members are not burdened with providing care at home
Elderly patients have the opportunity to socialize, reducing feelings of loneliness and isolation
Precautions for the Elderly
Blood pressure may drop suddenly during the session, particularly in those with a weak heart
Traveling to the clinic 3 times per week may be physically exhausting for some patients
Strict control of fluid and food intake is required between sessions
Method 2: What Is Peritoneal Dialysis (PD)?
Peritoneal Dialysis uses the patient's own peritoneal membrane — the lining of the abdominal cavity — as a natural filter. A surgeon inserts a small catheter into the abdomen, through which a special cleansing fluid called Dialysate is introduced into the abdominal cavity. The fluid is left in place for a period of time, then drained out along with the waste products it has drawn out.
Types of Peritoneal Dialysis
There are two main forms:
CAPD (Continuous Ambulatory Peritoneal Dialysis) — the patient or caregiver performs the exchanges at home 3–4 times per day, with each exchange taking approximately 30–40 minutes
APD (Automated Peritoneal Dialysis) — a machine performs the exchanges automatically overnight, allowing the patient to sleep normally and remain free during the daytime
Advantages of Peritoneal Dialysis for the Elderly
Can be performed at home, with no need for frequent travel
Provides continuous dialysis around the clock, resulting in more stable physical condition
Causes less fluctuation in blood pressure, making it suitable for elderly patients with a weak heart
Allows the patient to maintain a lifestyle closer to normal
Precautions for the Elderly
Requires a caregiver at home who understands and can correctly follow all procedures
Hygiene is critically important — if proper sanitation is not maintained, it can lead to infection of the abdominal cavity (Peritonitis)
Not suitable for elderly patients who have undergone multiple abdominal surgeries or have significant scar tissue (adhesions)
Comparing the Two Dialysis Methods
Factor | Hemodialysis (HD) | Peritoneal Dialysis (PD) |
Location | Clinic / Hospital | At home |
Frequency | 3 times / week | Daily (CAPD) or every night (APD) |
Medical team supervision | High | Moderate (scheduled follow-up visits) |
Risk of blood pressure drop | High | Low |
Family burden | Low | High |
Suitability for patients with a weak heart | Moderate | Good |
Patient cooperation required | Moderate | High |
Choosing the Right Dialysis Method for the Elderly
Hemodialysis (HD) is suitable for:
Elderly patients who do not have a full-time caregiver at home
Those with abdominal adhesions or a history of multiple abdominal surgeries
Families who are unable or unprepared to take on the responsibility of home-based care
Elderly patients who enjoy socializing and do not wish to remain at home
Peritoneal Dialysis (PD) is suitable for:
Those who have a dedicated and attentive caregiver at home
Those with heart problems or unstable blood pressure
Those who find it difficult to travel outside the home frequently
Those who wish to maintain independence in their daily life
Warning Signs Families Should Know Before Reaching the Stage of Needing Dialysis
Elderly patients with chronic kidney disease often show no clear symptoms in the early stages. However, once kidney function drops below 15%, symptoms begin to appear more noticeably, including:
Swelling in the legs and ankles, particularly in the morning
Unusual fatigue, with even a short walk to the bathroom causing breathlessness
Nausea, vomiting, and loss of appetite without any obvious cause
Skin itching, especially at night
Confusion and worsening memory due to the accumulation of waste products in the blood
Little to no urine output
If any of these symptoms are observed in an elderly family member, they should be taken to see a doctor as soon as possible for an assessment of kidney function.
Preparing for Dialysis in Elderly Patients
Good preparation helps make the dialysis process smoother and safer — both for the patient and the family.
Physical Preparation
Have kidney function, heart, and blood vessel assessments done before starting dialysis
If Hemodialysis is chosen, vascular access must be prepared at least 1–3 months in advance
Receive the Hepatitis B vaccine if the patient has not yet developed immunity
Mental and Emotional Preparation
Speak with the elderly patient openly and honestly, making them feel involved in the decision-making process
Be prepared for stress and emotional fluctuations that may arise in the early stages
Seek out a patient community or kidney disease support group where experiences can be shared
Family Preparation
Establish a clear schedule for accompanying the elderly patient to dialysis sessions
If Peritoneal Dialysis is chosen, receive proper training on catheter care and dialysate exchange procedures
Inquire about available healthcare coverage in advance, including the Universal Coverage Scheme (Gold Card), Social Security, or private health insurance
For more information on how to prepare, visit How to Prepare Before Your Hemodialysis Session
Frequently Asked Questions from Families About Dialysis in the Elderly
Q: Can elderly patients aged 80 and above undergo dialysis?
A: Yes, there is no maximum age limit for receiving dialysis. However, the doctor will assess the patient's overall physical condition before making a decision, with particular attention to the heart and blood vessels.
Q: How long can a patient live after starting dialysis?
A: It depends on the patient's overall physical condition and any co-existing medical conditions. Some elderly patients have been on dialysis for more than 10–15 years and continue to enjoy a good quality of life.
Q: If the patient does not want dialysis, are there other options?
A: Yes — one option is a kidney transplant, though this may carry additional risks for elderly patients. Another option is Palliative Care, which focuses on comfort and quality of life rather than prolonging life. All of these options should be discussed directly with a specialist.
Q: Is dialysis expensive?
A: Patients covered under the Universal Coverage Scheme (UC / Gold Card) are entitled to receive Peritoneal Dialysis at no cost. Those who opt for Hemodialysis may be required to make a co-payment. It is advisable to inquire about coverage eligibility directly with the clinic or hospital where treatment is sought.
Conclusion
There is no single right or wrong answer when it comes to choosing a dialysis method for an elderly patient — as everything depends on the individual's physical condition, family circumstances, and personal preferences. The most important step is to speak directly with a specialist in kidney disease, in order to design the most suitable treatment plan.
At Pattaya Dialysis Clinic, we provide hemodialysis services that meet the standards of the Nephrology Society of Thailand, in a warm and welcoming environment that feels just like home. Our dedicated team of specialist doctors and nurses provides close care throughout every dialysis session. We accept patients under the Universal Coverage Scheme (Gold Card) as well as other healthcare entitlements, and offer online medical consultations for families living in other provinces or those unable to travel in person. For those located in the Pattaya area, our clinic is conveniently situated in the heart of the city, so patients do not have to worry about a long or tiring journey after their dialysis session.
Don't leave your questions unanswered — consult our team of specialists today. Because taking care of the elderly loved one in your life starts now, and that is the greatest gift you can give them. Click here to contact us.
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