general, the stage of kidney disease plays a key role in the prognosis and
outlook of patients. The good news, the damage usually develops gradually. So
if it’s caught early, you can take early treatments and lifestyle changes to
slow its progress before becoming advanced (irreversible). How about stage 4
kidney disease life expectancy?
Five stages of chronic kidney disease (CKD)
stage is classified according to how severe the kidneys get damaged and how
well they keep functioning – from stage 1 (very mild damage) to stage 5
(complete kidney failure). Unfortunately, many times there is no specific
symptom of this damage until your kidney function was almost gone.
damage could be asymptomatic (no signs and symptoms) at early stages. Then at
later stages, the kidneys need to work harder to filter your blood — In such
case, specific symptoms are likely more noticeable.
variable called eGFR is a standard
measure to find out how well the kidneys are functioning. It stands for ‘estimated
glomerular filtration rate’. You can get your eGFR number with blood test since
it’s calculated from the amount of creatinine in the blood and other factors
(such as gender, age, and body size) .
higher number of your GFR means the better your kidneys functioning level – and
vice versa. So we can say that as the GFR numbers goes down, the chronic kidney
disease gets worse.
Kidney functioning level
90 or greater
Normal kidney functioning level with kidney damage
89 to 60
Mild loss functioning level
59 to 45
Mild to moderate loss functioning level
44 to 30
Moderate to severe loss functioning level
29 to 15
Severe loss functioning level
Lower than 15
Complete loss functioning level (kidney failure)
the stage correctly is necessary since each stage calls for different treatment
plan. When your healthcare providers know what stage of the kidney functioning
level you have, you can get the most appropriate care and treatment to deal
with the problem for better outcome.
Stage 4 kidney disease life expectancy
The kidney functioning level can get impaired from many factors and conditions such as a medical condition (e.g. diabetes and hypertension), a physical injury, or something else. Even some lifestyle factors would also contribute to increase the risk, see more here.
kidneys do lots of things to keep your body in balance and fit. Some of the
main ones are as follows :
filter and remove unnecessary things in the blood.
regulate important hormones which some are necessary to control blood pressure,
make red blood cells, and keep your bones healthy (strong)!
maintain the balance level of the body’s fluids.
they are damaged, they are likely to work harder to support the body. If left
untreated, this may lead to a failure, a serious condition that usually
requires dialysis or kidney transplantation to fix it.
of people with stage 4 kidney disease vary. But in general, these may include :
Tiredness and fatigue.
Edema (swelling), fluid retention of extremities.
Shortness of breath.
Changes in urination — e.g. dark or red urine containing blood, foamy urine, more frequent urination, or less urination (less than normal).
Changes in taste, metallic taste for example. This may also cause loss of appetite and weight loss.
Certain substance may build up in the blood, causing bad breath.
disease may also cause muscle cramps, restless legs, sleep problems, nausea,
vomiting, nerve problems (tingling in fingers /toes), and difficulty
How does chronic kidney disease affect your body?
mentioned earlier, there are five stages for CKD. The mildest ones are stage 1
and stage 2, in which the kidneys have mild loss functioning level. In these
early phases, mild damage has occurred but the kidneys are quite strong to work
(though not at their full strength).
damage progresses to the stage 3, the kidneys need work harder since their
functioning level has been lost by about 50 percent. In such case, you’re at
high risk of developing bone problems or hypertension (high blood pressure).
Comprehensive treatment plan is necessary to prevent the loss of kidney
function from getting worse.
advanced phase (stage 4), the damage turns to become more serious (severe). Since
it’s very close to stage 5, treatment is more focused to keep the kidney
functioning level as optimal as possible.
Also, you need to properly follow your treatment plan in order to reduce
the risk of other problems associated with low kidney function (heart disease
5, your kidney function level is not enough to keep you alive normally. It was
gone (failure), that’s why you need dialysis or (if possible) transplantation.
How many years you can live with stage 4 kidney disease?
There is no exact answer or formula that can accurately predict the prognosis and outcome for stage 4 kidney disease. Also, more than one factor can affect life expectancy.
stage is important variable to determine the outlook and prognosis of the
disease, but it is not everything. Each case is unique, not just in terms of
personality – but also in terms of other factors such as genetics, gender,
current health status, and so forth.
words, it’s hard to definitely find out how many years you will survive at this
stage 4. But if you’re keen to explore this issue, statistical analysis may
help (though this also would make no guarantees).
statistical review with ‘abridged life
table’ method suggests that life expectancy statistics for stage 4 kidney
disease are as follows :
The chart suggests that a reduction in life expectancy is consistently associated with an increase in age. This applies for both men and women.
has an effect. Life expectancy of people with stage 4 kidney disease (eGFR 15
to 29) is a bit different between men and women (but not significant). At age
40 years for example, women had life expectancy for about 9.1 years – and 10.4
years for men.
the study found that the gap of life expectancy by gender increases clearly for
all ages and all stages (except for stage 4, eGFR 15-29) in which it was
relatively longer in women than men.
to this study, women and men participants aged 40 years got:
life expectancy of 34.6 years (women) and 30.5 years (men) at stage 2 ‘eGFR 60
life expectancy of 28.7 years and 24.5 years at stage 3A ‘eGFR 45–59’.
life expectancy of 16.5 years and 14.5 years at stage 3B ‘eGFR 30-44’.
Albuminuria and prognosis of stage 4 kidney disease
Besides GFR variable, doctors may also look for other variables such as albumin.
is a protein found in your blood, which is required by the body to support
several body functions. For examples it’s necessary to help repair body’s
tissues, protect the body from infection, and build muscles.
can say there is nothing wrong of albuminuria in the body as long as it’s in
the blood. But the story is different when it’s found in the urine.
in the urine (that’s what we call as albuminuria) could be a signal that the
kidneys don’t work as well as normal ones. How severe the problem is going to
be is equivalent to the amount of albumin found in your urine.
amounts of albumin in the urine mean more likely for the kidneys with CKD to
turn serious or progress to a failure, see the table below (source)!
30 mg /g or lower
30 to 299 mg /g
300 mg /g or higher
on the table above represent the risk for the progression of chronic kidney
disease to turn into a failure! They are as follows:
is low risk (especially if no other markers of kidney disease).
is moderately increased risk
is high risk level
is very high risk level
red is highest risk
table suggests that abnormal level of albumin in the urine is common in stage 4
kidney disease. And the risk for the disease to become kidney failure increases
drastically when albuminuria is 300 mg /g or higher (deep red).
The risk of heart disease with stage 4 kidney disease
Even if patients
get treatment and are careful about their health, they are still at risk of
developing complications or even the kidneys may still fail.
why comprehensive treatment plan, including good-self management, is necessary
for best outcome and prognosis. With this, it’s possible to delay or stop
kidney failure to carry a long, fulfilling life more likely.
plan may include medications, changes in diet, exercise, maintaining body
weight, or complementary therapies (if necessary).
4, the disease may cause other medical conditions throughout the body. Some
that have more attention are as follows:
affecting the heart and blood vessels, including high blood pressure.
count of red blood cells (anemia).
and mineral problems.
health issues, including loss of appetite.
with your healthcare provider comprehensively if you have stage-4 kidney
disease since you may have some of those problems already! This is very
important to prevent or manage these complications as well.
many people with kidney disease (including those with stage 4) don’t die due to
kidney failure. Instead, they may die of something else, especially such as
heart disease. Why does this happen?
in addition to their kidney dysfunction, people with kidney disease may also have
some of the following heart health risk factors: