Linggo, Disyembre 16, 2012

 Abdominal bruit


Abdominal Bruit  is a degenerative process affecting the wall of the abdominal bruit aorta, with unknown etiology leading to its permanent dilatation (ballooning), and increasing its diameter by more than fifty percent. Abdominal bruit Aortic Aneurysm is more common happening infra-renal (affecting the part below the level of the kidneys) but sometimes occurs supra-renal or para-renal renal. It may also extend to involve the iliac arteries.

The majority of these Aneurysms are asymptomatic; but as they expand they lead to painful pulsations in the abdomen, chest, lower back or scrotum. Clinically, physical examination reveals the presence of Abdominal bruit Aortic Aneurysm by palpation of the aorta, auscultation of bruits (a sound caused by turbulent blood flow) and finding aneurysm sequalae and complications.

Complications due to this aneurysm are mostly rupture of the aneurysm leading to massive internal hemorrhage, hypovolemic shock, intravascular thrombosis, peripheral embolism, acute aortic occlusion, aortocaval fistula (if ruptured into the inferior vena cava), aortodudenal fistula (if ruptured into the duodenum), congestive heart failure, and many cardiovascular disorders.

                        Abdominal bruit Aortic Aneurysm

It detects the presence of the aneurysm, evaluating its anatomical position, size and extent. It is also reliable for detecting a ruptured aneurysm by visualizing the peritoneal and retroperitoneal fluid (hemorrhage).

Ultrasonography is a non invasive, up to 99%, sensitive test and is considered one of the most important preoperative investigative modalities for a patient with Abdominal Aortic Aneurysm. It helps in planning the treatment for the patient, as it can tell the possibility of endovascular repair, gives details about its site, extensions and relations with nearby organs. All of this data is very useful in the preparation prior to aortic aneurysm surgery.

Other important tests are useful to detect and track progression of abdominal aneurysm, such as CT scan, Magnetic resonance and angiography. In addition, echocardiography is useful to identify an aneurysm higher up in the chest cavity at the origination of the aorta. However, ultrasonography remains the easiest method to diagnose, follow up, and treat an abdominal aortic aneurysm. It is an inexpensive, sensitive and non invasive procedure which can easily save lives.

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