Abdominal Aorta Aneurysma
An abdominal aorta aneurysm is the increase of diameter of the abdomen artery about 2,5 – 3 times than the usual diameter. The usual diameter is about 15-20 mm. An increase of the diameter over 50-55 mm is critical. Extensive studies have shown that because of an increase of this dimension the presumption for a life-threatening crack in the abdomen artery (rupture) rises so that an intervention is necessary.
The diagnosis of an abdominal aorta aneurysm is often a coincidence. The family doctor does a routine examination with an ultra-sound of the abdomen and discovers a broadening of the main artery. In very rare cases the patient will have recognized troubles that could have clearly indicated an aneurysm.
If a patient knows of the existence of an abdominal aorta aneurysm and experiences strong pain and traction in the abdomen or back or flank (alleged kidney stones) area, he should see a doctor immediately.
In an emergency, a suspicion of a life-threatening rupture that could result in the patient bleeding to death, the patient needs to be hospitalized immediately. After the diagnosis has been confirmed a surgery to support the patient´s life has to follow.
The common practice involves an increase of the artery that is controlled with a colour-ultrasound annually or every six months. Furthermore there should be an examination of the rest of the arteries (neck, pelvis, legs) since there could also be aneurysms. If the aneurysm has reaches a critical diameter in the course of the examinations there will have to be therapeutic interventions.
If therapy is necessary there will be two methods:
1.) the replacement of the artery with a synthetic prosthesis by surgery, e.g. the Y-prosthesis (look at picture) or in select cases with the technical recourses of sealing with a so called endoprosthesis. This procedure works without an abdominal incision since the system can be shifted directly over the inguinal artery into the defected abdominal artery.