SAPIENS HEALTH FOUNDATION    (Balaji Medical And Educational Trust)

Chronic Kidney Failure is one of the Deadliest disease.
Yet, it is least understood.
Dr.Rajan Ravichandran
MD,MNAMS,FRCP(Edin),FACP(USA)
Nephrologist
The prevention of Chronic Renal Failure at the community level.
The rural programme of the Kidney Help Trust.
Dr. M.K. Mani, Chief Nephrologist, Apollo Hospital, Chennai.

For the past 14 years, the Kidney Help Trust of Chennai has run a programme to prevent chronic
renal failure by regular screening initially of an entire population of 21,000, and treatment of diabetes
and hypertension with the cheapest available drugs. The total cost amounts to just Rs. 21.75 (45 US
cents) per capita of the population per year. After 10 years, the programme was expanded to cover
the adjacent area with a population of 21,500. Both the original population and the new population
were surveyed, and the kidney function was measured. There are 28 persons with kidney function
below normal per 1000 of the new population, while the population covered by the project has only 11
per thousand. Around 60% of chronic renal failure has been prevented with extremely small expense.
The new population has also been provided the same coverage, so the Trust protects 42,500 people
now.

The function of the kidneys and the effects of kidney failure

The kidneys play a vital role in the purification of the blood, and in the regulation of many aspects of
the function of the body: the blood pressure, the formation of red blood cells, and the formation and
maintenance of healthy bone being the most important of these. Most human beings are born with
two kidneys, and their importance can be judged by the fact that together they weigh just 0.4% of the
weight of the body, yet receive 25% of the blood pumped by the heart to the body, and consume 10%
of the oxygen. The extremely high blood flow makes the kidney vulnerable to injury, since noxious
substances carried in the blood reach the kidney in large quantities. Further, diseases that damage
the blood vessels, like diabetes and high blood pressure, affect the kidneys, since they are full of
blood vessels. When the kidneys fail, toxins accumulate in the blood and the patient is gradually
poisoned. His blood pressure rises, he becomes anaemic and weak, and the bones become brittle
and painful. He gradually succumbs to a miserable death.

How can we treat kidney failure?

With a few exceptions, most parts of our country now have numerous hospitals with facilities for
dialysis (the purification of the blood) and kidney transplantation (the insertion of a healthy kidney
from a living donor or a cadaver into the patient), and these procedures are carried out with very
good results. Unfortunately, the cost is extremely high. Dialysis costs between Rs. 15,000/- and Rs.
20,000/- (US $ 300/- to 400/-) per month, and will have to be continued as long as the patient lives.
Renal transplantation costs between Rs. 3,00,000/- and Rs. 3,50,000/- (US $ 6,000/- to 7,000/-), and
requires medicines costing between Rs. 10,000/- and Rs. 1,00,000/- (US $ 200/- to 2,000/-) per year
to prevent rejection of the transplant and to sustain life. Our per capita income is around Rs. 32,000/-
(US $ 650/-) a year. The expenditure of the State and Central Governments on health works out to
around Rs. 800/- (US $ 17/-) per capita per year. It does not take a mathematical genius to realise
that India and Indians cannot afford to treat chronic renal failure. In fact, it is estimated that just 3% of
patients with chronic renal failure are now being treated. The only feasible option is to prevent it, if
that can be done at a lower cost.

The prevention of chronic renal failure

Diabetes accounts for around 30% of all the chronic renal failure in India and hypertension for
another 10%. It has been amply demonstrated all over the world that tight control of these two
conditions from the outset will protect against damage to the blood vessels and therefore to the
kidneys. In addition, hypertension accelerates the decline in kidney function in all other renal
diseases, and good control will give patients many more years of useful and healthy life.  If other
renal diseases are detected and treated early, it may be possible to cure some of them. We started
with the premise that we should be able to prevent half the cases of kidney failure in the country.

The plan of action

We started with a rural area since 70% of India’s population is in the villages, and these are less well
served medically. Our initial population consisted of around 21,000 people in 26 villages in
Sriperumbudur Taluk. The main workers are girls from the area who have completed their schooling.  
We train them to perform the simple tasks we require in a few days, and closely monitor their work for
the first few weeks till we are confident of their reliability. The demographics of the entire area has
been mapped out, and we have a card for each habitation.

1.        Screening of every person in the area once in 18 months: our workers ask each one a simple
set of questions: have you ever had swelling of the feet, difficulty in breathing, pain on passing urine,
blood in the urine, the need to pass urine frequently (more than twice in an hour) or to get up from
sleep at night to pass urine, or pain in the back over the kidneys. A sample of urine is examined at
the site for sugar and for protein. Most diabetics will be detected by finding sugar in the urine, and
protein leaks into the urine in around 80% of kidney disease. The blood pressure is recorded for all
individuals over the age of 5.

2.        Verification by the doctor: all who test positive by answering any of the questions in the
affirmative, who have a high blood pressure (over 140/90), or who have sugar or protein in the urine,
are examined by a doctor of the Kidney Help Trust who makes regular visits to each village.

3.        Initial investigation: the Apollo Hospital of Chennai has been kind enough to do some simple
tests for us free of charge. All subjects verified by the doctor have blood urea, serum creatinine,
blood glucose and glycated haemoglobin (a test which gives the average of the blood sugar over the
preceding three months) done. Those who already have evidence of kidney disease are invited to go
to Apollo Hospital where they are investigated and treated free. However, very few of these patients
agree to visit the hospital.

4.        Treatment: diabetes is treated with glibenclamide and metformin, hypertension with reserpine,
hydralazine and hydrochlorothiazide, all drugs of low cost yet of proven efficacy. Medicines are
provided free by the Kidney Help Trust. Enalapril is used only in selected patients as it is more
expensive. We have recently received a generous donation of Enalapril tablets from the Balaji Trust,
and are able to give this drug to some of our patients. However, possible side effects of this drug
necessitate more frequent blood tests that add to the expenses, and therefore we have to restrict the
use. Monitoring of blood pressure is done at weekly intervals by the health workers, and diabetes is
monitored with glycated haemoglobin done every three months. The dose of medicines is adjusted to
achieve good control.

5.        Implementation: the health workers go to each village in turn, and establish themselves at the
designated centre, which may be the verandah of the school or panchayat office, or sometimes the
shade of a convenient tree. The population is invited to come there for the check, but those who do
not come are visited at their homes to ensure as near complete coverage as possible.

6.        The response: 90% of the populace co-operated for the survey. The figure of 21,000
mentioned earlier is that 90%. Only 30% of the patients picked up had been aware of their disease
earlier. This fact underlines the importance of screening every single member of the community. One
recognised method of screening populations is to run a camp in an area, where doctors are available
for the public to consult and technicians to do investigations. Only those who suspect they have a
problem would attend, and 70% of patients would be missed. We would lose the opportunity of
treating patients from the very earliest stage of the disease. After diagnosis, 25% of the patients
preferred to take treatment with their own doctors. Of the remainder, 79% co-operated for treatment.

7.        The results: among those who co-operated with us for treatment, blood pressure was
controlled to ideal levels (less than 140/90) in 96%, glycated haemoglobin to normal in 52% and
significantly improved though not to completely normal in another 25%.

8.        The efficacy of the project: this was assessed after the project had been running for 10 years,
by extending the project to an adjacent area of around 21,500. The screening was done in both
areas in the same year, and the findings of the two areas were compared. A test was made of the
kidney function on this occasion, using a formula in each individual that gives a numerical value for
the kidney function (the glomerular filtration rate or GFR). The normal value of the GFR in Indians is
between 80 and 110 ml/minute. All those who were picked up by screening and were then verified by
the doctor had this estimation done. GFR was found to be below 80 ml/minute in 28 per thousand in
the new area that had not had the benefit of the project over the last ten years, and just 11 per
thousand in the area covered by our project. It appears that we have prevented 17 patients from
developing kidney failure per 1000 of the population, around 60% of those who would have gone into
kidney failure without our intervention.

9.        The cost of the project: funding has come from a number of individual and corporate donors.
Donations to the Trust have been exempted from income tax under Section 80 G of the Income Tax
Act. The total cost of the project, including salaries of the workers and the doctors, transport of the
doctors from Chennai to the project area, chemicals for the simple urine tests and all the medicines
used, have come to just Rs. 21.75 (45 US cents) per capita of the population per year. This does not
take into account the tests done at the Apollo Hospital, whose support is gratefully acknowledged.

The course to be charted

We believe, we have established and validated an effective protocol for the prevention of a large
proportion of kidney failure at a very low cost. We are now measuring the impact on the incidence of
stroke and heart disease, which would probably be even greater than the benefits to the kidneys.
This programme can easily be reproduced by small groups all over the country. It could even be
taken up by members of the community themselves, with a little help from doctors and laboratories.
The cost is small enough for many even among the poor to bear if all residents of an area take it up,
and for those who are too poor even to afford Rs. 21/- (43 US cents) a year, there should surely be
no dearth of more fortunate Indians who could help them. It could also be easily incorporated into
Government Health programmes using existing staff. We believe it is our duty to disseminate this
information, and would be happy to help any group to establish similar programmes.

The Kidney Help Trust

The Trust was originally formed by a group of five doctors and two lay persons who had renal
patients in their family. The Trust is registered with the Government of India, and donations to the
Trust are exempt from income tax. The Trust is also cleared by the government of India to receive
contributions from abroad. The intention was to help poor patients defray the expenses of renal
transplantation. Donations were received from members of the public, mostly wealthy patients of one
of the founders. However, it soon became clear that the cost of transplantation was so high that the
corpus accumulated after two years would only cover the costs of 15 patients. With thousands of
poor patients needing financial support, it was clear that a fortunate handful would benefit and the
vast majority would languish and die for lack of the wherewithal to pay for treatment.
The Trust then took a decision to find more effective ways to use its limited funds to benefit a larger
number of people with kidney disease. The focus was changed to the prevention of chronic renal
disease using an approach of early detection and treatment of hypertension and diabetes, and of
other diseases of the kidneys. We also made every effort to keep costs down, so that our programme
would be easily affordable even in a poor country like ours.

For further details please contact
The Trustee, Kidney Help Trust,
1, Kasturirangan Road, Chennai 600 018, India.
Telephone: + 91-44-2499-1537.
e-mail: mkmani537@bsnl.in; muthukrishnamani@gmail.com