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    Erectile Dysfunction: Vacuum Constriction Devices

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    A vacuum constriction device (VCD) is an external pump with a band on it that a man with erectile dysfunction can use to get and maintain an erection.

    The VCD consists of an acrylic cylinder with a pump that may be attached directly to the end of the penis. A constriction ring or band is placed on the cylinder at the other end, which is applied to the body. The cylinder and pump are used to create a vacuum to help the penis become erect; the band or constriction ring is used to help maintain the erection.

    How Do Vacuum Constriction Devices Work?

    To use a vacuum constriction device:

    • Place the pump, which can be pumped by hand or run on batteries, over the penis.
    • Pump the air out of the cylinder so that a vacuum is created. The vacuum draws blood into the shaft of the penis and causes it to swell and become erect.
    • Once the penis is erect, with the help of lubricant, slide the retaining band down onto the lower end of the penis.
    • Remove the pump after releasing the vacuum.

    Intercourse can be attempted with the constriction band in place to help maintain the erection. The band can be left on safely for up to 30 minutes to allow for successful intercourse.

    Be sure that devices brought without a prescription contains a "quick release" feature, as there have been reports of penile injuries due to devices that did not release its vacuum on-demand or released it too slowly.

    How Well Do Vacuum Constriction Devices Work?

    Studies suggest that about 50%-80% of men are satisfied with the results of VCDs. As with any other method of treatment for erectile dysfunction (ED), satisfaction rates may decrease with time.

    Who Should Consider Using a Vacuum Constriction Device?

    Vacuum constriction devices are safe and can be used by patients with ED caused by many conditions, including:

    Vacuum constriction devices should not be used by men who may have a significant congenital bleeding disorder or a disorder that predisposes them to a condition called priapism (a prolonged, sometime painful erection lasting over several hours). Examples include sickle cell anemia, some forms of leukemia, and other blood conditions.

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