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  2. Nicoladoni–Branham sign - Wikipedia

    en.wikipedia.org/wiki/Nicoladoni–Branham_sign

    In modern medicine, the sign is elicited when pressure is applied to an artery proximal to an arteriovenous fistula and said to be positive if the following occurs: Swelling reduces in size; Bruit and thrill disappears; Blood pressure rises; Pulse rate and heart rate return to normal. [2] [3] [4]

  3. Bruit - Wikipedia

    en.wikipedia.org/wiki/Bruit

    Bruit, also called vascular murmur, [3] is the abnormal sound generated by turbulent flow of blood in an artery due to either an area of partial obstruction or a localized high rate of blood flow through an unobstructed artery.

  4. Arteriovenous fistula - Wikipedia

    en.wikipedia.org/wiki/Arteriovenous_fistula

    An arteriovenous fistula is an abnormal connection or passageway between an artery and a vein. [1] It may be congenital , surgically created for hemodialysis treatments, or acquired due to pathologic process, such as trauma or erosion of an arterial aneurysm .

  5. Vascular access - Wikipedia

    en.wikipedia.org/wiki/Vascular_access

    A radiocephalic fistula. Illustration depicting AV fistula during hemodialysis. AV (arteriovenous) fistulas are recognized as the preferred access method. To create a fistula, a vascular surgeon joins an artery and a vein together through anastomosis. Since this bypasses the capillaries, blood flows rapidly through the fistula. One can feel ...

  6. Cimino fistula - Wikipedia

    en.wikipedia.org/wiki/Cimino_fistula

    Surgically created AV fistulas work effectively because they: Have high volume flow rates (as blood takes the path of least resistance; it prefers the (low resistance) AV fistula over traversing (high resistance) capillary beds). Use native blood vessels, which, when compared to synthetic grafts, [5] are less likely to develop stenoses and fail.

  7. Vascular access steal syndrome - Wikipedia

    en.wikipedia.org/wiki/Vascular_access_steal_syndrome

    Vascular access steal syndrome is a syndrome caused by ischemia (not enough blood flow) resulting from a vascular access device (such as an arteriovenous fistula or synthetic vascular graft–AV fistula) that was installed to provide access for the inflow and outflow of blood during hemodialysis.

  8. Carotid-cavernous fistula - Wikipedia

    en.wikipedia.org/wiki/Carotid-cavernous_fistula

    CCF symptoms include bruit (a humming sound within the skull due to high blood flow through the arteriovenous fistula), progressive visual loss, and pulsatile proptosis or progressive bulging of the eye due to dilatation of the veins draining the eye. Pain is the symptom that patients often find the most difficult to tolerate.

  9. Korotkoff sounds - Wikipedia

    en.wikipedia.org/wiki/Korotkoff_sounds

    There are five Korotkoff sounds: [7] Phase I: The first appearance of faint, repetitive, clear tapping sounds which gradually increase in intensity for at least two consecutive beats is the systolic blood pressure.