We
already discuss that earlier experts divided Ehlers-Danlos Syndrome (EDS) into
11 subtypes — I through XI. To simplify these classifications scientists
recognized the subtypes according to signs and symptoms and arranged them into
six different types:
Hypermobility
type (formerly type III)
This
is the most common form of EDS. It may affect as many as one in 10,000 - 15,000
people. Signs and symptoms include:
E Loose,
unstable joints
E Chronic
joint pain
Classical
type (formerly types I and II)
This
type probably affects less than 1 in 20,000 - 40,000 people. Signs and symptoms
include:
E Highly
elastic, velvety skin
E Fragile
skin that bruises/tears easily
E Slow
and poor wound healing leading to scarring
E Noncancerous
fibrous growths on pressure areas, such as elbows and knees; fatty growths on
the shins and forearms
E Loose
joints prone to dislocation and may delay the development of large-motor skills
Vascular
type (formerly type IV)
This
is one of the most serious forms of EDS. It affects an estimated 1 in 100,000 -
200,000 people. Signs and symptoms include:
E Fragile
blood vessels and organs that are prone to rupture
E Thin,
fragile skin that bruises easily
E Veins
visible beneath the skin
E Distinctive
facial features, including protruding eyes, thin nose and lips, sunken cheeks
and small chin
E Loose
joints usually limited to the fingers and toes
Kyphoscoliosis
type (formerly type VI)
This
is another uncommon form of EDS. Fewer than 60 cases have been reported
worldwide. Signs and symptoms include:
E Progressive
curvature of the spine (scoliosis)
E Fragile
eyes that are easily damaged
E Severe, progressive muscle weakness
Arthrochalasia
type (formerly known types VII A and B)
Arthrochalasia
is also very rare. Worldwide only about 30 cases have been reported with the
followings signs and symptoms:
E Very loose joints and dislocations involving
both hips, which may delay the development of large-motor skills
E Stretchy, fragile skin prone to bruising
E Early-onset arthritis
E Increased risk of bone loss and fracture
Dermatosparaxis
type (formerly called type VIIC)
This
form is also very rare. Only about 10 cases have been reported worldwide. Signs
and symptoms include:
E Extremely fragile and sagging skin
E Loose joints, which may delay development of
large-motor skills in children.
Other
types
The
remaining subtypes ~ types V, VIII, IX,
X, and XI ~ are classified as “other”. These are rare, and some are not
well-defined. Some characteristics of these types:
E Type V has characteristically fragile skin, although bruising and loose
joints are uncommon.
E Type IX may cause chronic diarrhea and light headedness due to low blood
pressure in addition to other signs and symptoms.
E Types X and XI are characterized by loose joints and are very
similar and have sometimes been considered one type rather than two.
E Type X may lead to problems with blood clotting.
Source: www.brighamandwomens.org
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