Endovas­cu­lar Treat­ment of Cere­bral Aneurysm with Plat­inum Coils (GDC) (2002)

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You have been diag­nosed with a cere­bral aneurysm

An aneurysm is an abnor­mal bulging along the wall of an artery which could bleed. The aneurysm results from the com­bi­na­tion of a weak­en­ing of the arte­r­ial wall and a rise of the blood pressure.

artery2a artery1a

Your doc­tor has rec­om­mended an endovas­cu­lar treat­ment. This con­sists of fill­ing the aneurysm with plat­inum coils to achieve com­plete occlu­sion (to block the flow of blood into the bulge).


The risks of this pro­ce­dure will be explained to you before­hand by a neuro-​radiologist.


  • Do not eat or drink after mid­night the night before the procedure.
  • You will be admit­ted to the hos­pi­tal the night before your pro­ce­dure or the same day.
  • Fam­ily mem­bers may accom­pany you to the radi­ol­ogy department.
  • Upon your arrival a radi­ol­ogy nurse will take care of you.
  • The neuro-​radiologist and the neu­roanaes­thetist will explain the pro­ce­dure and obtain your consent.
  • An intra­venous will be inserted in your arm. Then you will be hooked up to car­diac and blood pres­sure mon­i­tors. Next, the neuro-​anaesthetist will start the sedation.
  • A uri­nary catheter will be inserted after you are under gen­eral anesthesia.



  • You will be asleep dur­ing the pro­ce­dure (about 3 hours or more).
  • We will insert an intro­ducer (like a small tube) into the blood ves­sel of your groin. Through this intro­ducer, a long catheter will be inserted to reach the inside of the aneurysm in order to fill it with plat­inum coils. The intro­ducer will still be there when you wake up from the gen­eral anaes­the­sia. You should feel a lit­tle dis­com­fort at the groin site but not more.
  • The intro­ducer will be removed the day after the pro­ce­dure by the neuroradiologist.

After the procedure

  • You will remain in the recov­ery room for about 24 hours with the intro­ducer in your groin.
  • You must not bend your leg, but the head of your bed can be raised 30 to 40 degrees.
  • When the intro­ducer is removed from your groin, a pres­sure dress­ing is applied for about 12 hours. At this time, you can be trans­ferred to your room.
  • The intra­venous can be taken out 2 hours later.
  • The nurse will check you fre­quently and also ver­ify the pres­sure dress­ing for bleed­ing or swelling. The pulse in your foot will be checked to ensure your cir­cu­la­tion is good.
  • You must remain in bed for at least 24 hours after the intro­ducer has been removed.
  • How­ever, you can get up to the bath­room 4 hours after.
  • You can usu­ally go home the next day (48 hours after the procedure).

Dis­charge instructions

  • Dur­ing the first week, do not lift heavy objects. The femoral artery needs time to heal well.
  • You can walk short dis­tances every day.
  • Increase your activ­ity every day and lis­ten to your body for signs of fatigue.
  • Your physi­cian will tell you when you may return to work and do your reg­u­lar activ­i­ties. (Usu­ally 2 weeks after the procedure.)
  • For the next 6 months, do not take any med­ica­tion con­tain­ing aspirin.
  • We rec­om­mend that you inform health pro­fes­sion­als that you have a cere­bral aneurysm that was treated with plat­inum coils.
  • Plat­inum coils are MRI com­pat­i­ble so it is safe for you to have a mag­netic res­o­nance imag­ing test, in case you need one.

For more infor­ma­tion call the radi­ol­ogy nurse at (514) 3981910.

Addi­tional Information

Neu­ro­ra­di­ol­ogy Depart­ment
Mon­treal Neu­ro­log­i­cal Hos­pi­tal
3801 Uni­ver­sity (cor­ner of Pine Avenue) 5th floor,
Mon­treal (Que­bec) H3A 2B4
Tele­phone: (514)3981910

Infor­ma­tion about InfoNEURO
Neuro-​Patient Resource Cen­tre
Mon­treal Neu­ro­log­i­cal Hosp­tial Room 354
Tel: (514) 3985358
E-​mail: infoneuro@​muhc.​mcgill.​ca
Web site: http://​infoneuro​.mcgill​.ca/

This infor­ma­tion is for edu­ca­tional pur­poses only, and is not intended to replace the advice of a pro­fes­sional health­care prac­ti­tioner, or to sub­sti­tute for med­ical care.

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Writ­ten by Josée Beloion, RN, BSN
Reviewd by Dr. Tampieri, MD
Neu­ro­ra­di­ol­ogy Depart­ment
Mon­treal Neu­ro­log­i­cal Hos­pi­tal
McGill Uni­ver­sity Health Cen­tre
Feb­ru­ary 2002

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