Cystic Fibrosis
Disease information
Cystic Fibrosis
Cystic Fibrosis
.
An inherited
disease
(autosomal recessive) of the most frequent (1: 2. 500 live births) in white populations, characterized by excessive thickening of the bronchial and
pancreatic
secrecciones.
Forecast.
Incurable,
a
clinical management exquisite and the possibility of lung transplants have increased significantly the life expectancy of these patients.
Complications.
So frequent that it is
almost
an aspect of the
disease
is the
respiratory
tract colonization by Pseudomonas aeruginosa,
a
bacterium that form films on the
bronchi
of these patients that make it
almost
impossible to eliminate. In fact the analysis of the genome of this organism
was
funded by the
Cystic
Fibrosis
Foundation of
America
.
Risk Factors.
It is an autosomal recessive, so that both parents must be carriers of the defective gene, and in this case the probability of having
a
child with
cystic
fibrosis
is 25%.
Women with
cystic
fibrosis
can have
children
, who may suffer (if the parent is
a
carrier) in 50% of cases, and pass it on the rest.
Prevention.
It
has
no prevention.
Genetic
counseling may be important to prevent new cases.
Diagnosis and Treatment.
DIAGNOSIS:
The diagnosis is made through the study of sweat, which presents an abnormal amount of
chlorine
(although up to 2% of the cases this test is
normal
) in
a
patient with
respiratory
problems
.
Other evidence that may be needed are chest X - rays, bone and abdomen, and blood tests.
TREATMENT:
Intensive studies are being conducted with
genetic
therapies to overcome this
disease
, at least in its facet of breath.
Today is chest physiotherapy and rehydration. Have also reported good results with lung transplantation.
General measures.
Proper
hydration
.
Medication.
Pancreatic
enzymes orally.
Detection and treatment of
respiratory
flare - ups with antibiotics.
Injections of vitamins
A
,
D
and
K
.
Activity
.
Need not be restricted outside the busiest periods, while carefully avoiding
dehydration
.
Diet.
Diet with plenty of water and
protein
and low in fat.
Advise your
doctor
if.
Or symptoms of acute
intestinal
malabsorption.
Causes.
Cystic
Fibrosis
is caused by
a
defect in the gene that encodes
a
protein
secretory
chlorine
, so this does not work.
Signs and symptoms.
In most cases, the
disease
appears early in life. The organs most affected are the lungs and pancreas, although it affects all secretory glands of the body.
Respiratory
symptoms:
The manner of presentation is more frequent cough that becomes constant, with secrección of green and very viscous mucus.
The trend is for outbreaks, appearing episodes of significant deterioration to cede to the antibiotic treatment until the next time.
Little by little the worse lung
function
, which leads to
respiratory
failure
.
Digestive symptoms:
Sometimes it occurs after giving birth to
a
retention of mucus (Ileo meconium) which causes retention of stool, abdominal distension and vomiting.
In older
children
may be
a
similar obstruction.
The feature is the most typical digestive
pancreatic
insufficiency, which leads to poor digestion of fats and proteins:
Abundant feces.
malodorous.
Frequent.
Vitamin
A
deficiency
(xerophthalmia)
D
(rickets) and
K
(
problems
with Coagulation) these vitamins to be absorbed with fat.
It is not often
Diabetes
Mellitus
despite the involvement of the exocrine pancreas.
Puberty is delayed, and the
children
had azoospermia (no sperm in the semen)
Infertility
in women present about 20% of cases, even if they become pregnant after
breast
normally.
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