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Vascular Surgery
 

Arteriovenous Fistulas

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Overview

Arteriovenous Fistulas


Basic Facts

  • An arteriovenous fistula (AVF) is an abnormal connection between an artery (blood vessels that carry oxygenated blood to the body) and a vein (blood vessels that carry oxygen-depleted blood to the heart).


  • AVFs can be congenital but most often they are acquired and their cause is often unknown.


  • Treatment for AVFs depends on their location and severity but include surgery, minimally invasive procedures, and radiosurgery.

Arteriovenous Fistula Surgery offers info on Fistula Surgery India, Arteriovenous Fistula India

An arteriovenous fistula (AVF) is an abnormal connection between an artery (blood vessels that carry oxygenated blood to the body) and a vein (blood vessels that carry oxygen-depleted blood to the heart). An AVF can allow high-pressure arterial blood to flow directly into veins. When high-pressure arterial blood flows into veins, it can cause them to bulge or burst (hemorrhage). In addition, arterial blood that is shunted directly to veins leaves tissues deprived of blood and oxygen.

AVFs can occur anywhere in the body, but those that cause neurological symptoms occur in the brain and spine. AVFs that occur in the brain include : -


  • Dural AVFs
  • Direct carotid-cavernous fistula
  • Indirect carotid-cavernous fistula

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A-V fistula

A fistula is an abnormal connection between two parts of the body. An arteriovenous (AV) fistula refers to an abnormal connection between an artery and a vein.

Arteriovenous Fistula India, Arteriovenous Fistulas Surgery India, Arteriovenous Fistulas Side Effects India


WHAT ARE THE SYMPTOMS?

AVF symptoms can vary depending on its location and severity. Symptoms associated with cerebral AVFs include : -


  • Roaring sound in the ears caused by the turbulent blood flow (tinnitus)
  • Headache
  • Seizure
  • Hemorrhage into the brain

Symptoms of carotid cavernous AVFs may include swelling and redness in and around the eye and vision problems.

Symptoms of spinal AVFs include : -


  • Progressive weakness in the legs
  • Trouble walking
  • Sexual dysfunction
  • Paralysis
  • Bowel and bladder difficulties

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CAUSES AND RISK FACTORS

AVFs can be congenital, meaning the AVF has been present from birth. Most, however, are acquired and spontaneous and their cause is unknown (idiopathic).

Causes of acquired AVFs include : -


  • Trauma, such as a blow to the head or spine
  • Complications of cranial surgery
  • Blood clots in the affected vessels
  • Infection
  • Tumors


DIAGNOSIS

Tests used to diagnose AVFs include : -


  • Angiography
  • Myelography
  • Computed tomography (CT) scan
  • Magnetic resonance imaging (MRI)
  • Magnetic resonance angiography (MRA)


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TREATMENT APPROACH

The goal of AVF treatment is to close the abnormal connection between artery and vein to prevent hemorrhage and relieve pressure on the brain or spinal cord.

The following techniques may be used : -


  • Manual compression of the carotid artery
  • Endovascular embolization
  • Open surgery
  • Radiosurgery





The list of of Vascular Surgery Hospitals in India is as follows : -


Apollo Hospitals Bangalore Apollo Hospitals, Bangalore, India
Apollo Hospital Chennai Apollo Hospital, Chennai, India
Apollo Hospitals Hyderabad Apollo Hospitals, Hyderabad, India
Apollo Hospitals Delhi Indraprastha Apollo Hospital, Delhi, India
Apollo Hospitals Kolkata Apollo Gleneagles Hospital, Kolkata, India
Apollo Hospital, Goa, India Apollo Hospital, Goa, India
Wockhardt Hospital Bangalore India Wockhardt Hospital, Bangalore India
Wockhardt Hospital hyderabad, India Wockhardt Hospital, hyderabad, India
Wockhardt Hospital Mumbai, India Wockhardt Hospital, Mumbai, India
Fortis Hospital, Delhi, India Fortis Hospital, Delhi, India
Fortis Hospital Mohali, India Fortis Hospital, Mohali, India
Fortis Hospital Noida, India Fortis Hospital, Noida, India
Escorts Heart Institute Hospital, Delhi, India Escorts Heart Institute Hospital, Delhi, India
Manipal Hospital, Bangalore, India Manipal Hospital, Bangalore, India
MIOT Hospital, Chennai, India MIOT Hospital, Chennai, India
Narayana Hrudayalaya Heart Hospital, Bangalore, India Narayana Hrudayalaya Heart Hospital, Bangalore, India
Artemis Hospital, Gurgaon ( Delhi ) , India Artemis Hospital, Gurgaon ( Delhi ) , India
Max Devki Devi Heart and Vascular  hospital,  Delhi, India Max Devki Devi Heart and Vascular hospital, Delhi, India
Max Super Specialty hospital,  Delhi, India Max Super Specialty hospital, Delhi, India
BGS Global Hospital Bangalore, India BGS Global Hospital, Bangalore, India
BGS Global Hospital Chennai, India BGS Global Hospital, Chennai, India
BGS Global Hospital Hyderabad, India BGS Global Hospital, Hyderabad, India


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