"The first embolisation coils were described by S. Mullan in 19744."
"Fibered/ Non fibered construction6"
"The vessel being targeted for embolisation must be adequately filled for effective and lasting occlusion. Target packing density greater than 24% is associated with less incidence of recanalisation5. Target packing density is directly proportional to the volume of space occlusion by coils. To achieve this 24% packing density, ensure that the spaces between the coil loops are eliminated with tighter and more compact coil mass. If 24% of the target volume is filled with coils, then 76% is essentially thrombus. There is a greater likelihood of recanalisation when the embolic therapeutic effect is due to thrombus formation as opposed to space occlusion."
"Secondary structure: consists of stock wire wound around a mandril. This determines the primary wind of the coil."
"To prevent distal embolisation or migration, the first selected coil should be at least 2 mm oversized or 20-30% larger than target vessel on pre-deployment angiogram."
"Coil selection is also determined by the inner diameter of the catheter that can reach the target. The coil diameter must match the inner diameter. Mismatches lead to concertino effect between the wire and coil (when undersized) or catheter occlusion (when oversized)."
"Coil compaction is defined as a decrease in the spaces between the loops of coils leading to a smaller coil pack. Better coil compaction is associated with higher technical and clinical success of embolisation."
"The vessel being targeted for embolisation must be adequately filled for effective and lasting occlusion. Target packing density greater than 24% is associated with less incidence of recanalisation5. Target packing density is directly proportional to the volume of space occlusion by coils. To achieve this 24% packing density, ensure that the spaces between the coil loops are eliminated with tighter and more compact coil mass. If 24% of the target volume is filled with coils, then 76% is essentially thrombus. There is a greater likelihood of recanalisation when the embolic therapeutic effect is due to thrombus formation as opposed to space occlusion."
"To prevent distal embolisation or migration, the first selected coil should be at least 2 mm oversized or 20-30% larger than target vessel on pre-deployment angiogram."
"They consist of stainless steel, platinum, or Inconel (nickel-based superalloy) coils that can be bare or fibered with materials such as nylon fibre, dacron, polyester, silk, PVA, or wool to increase thrombogenicity."
"Construction of a Coil"
"Primary structure; stock wire/filament"
"Secondary structure: consists of stock wire wound around a mandril. This determines the primary wind of the coil."
"Tertiary structure: This consists of the secondary structure shaped into any number of tertiary configurations (Helical, spherical, 3D, etc.)"
"Primary structure; stock wire/filament"
"Secondary structure: consists of stock wire wound around a mandril. This determines the primary wind of the coil."
"The diameter of the coil when deployed (usually mentioned in the manufacturer's package insert) is the primary wind of the coil"
"Tertiary structure: This consists of the secondary structure shaped into any number of tertiary configurations (Helical, spherical, 3D, etc.)"
"Fibered/ Non fibered construction6"
"To prevent distal embolisation or migration, the first selected coil should be at least 2 mm oversized or 20-30% larger than target vessel on pre-deployment angiogram."
"Coil selection is also determined by the inner diameter of the catheter that can reach the target. The coil diameter must match the inner diameter. Mismatches lead to concertino effect between the wire and coil (when undersized) or catheter occlusion (when oversized)."
"Coil compaction is defined as a decrease in the spaces between the loops of coils leading to a smaller coil pack. Better coil compaction is associated with higher technical and clinical success of embolisation."
"Remove the pusher stylet and loading cartridge"
"Secondary structure: consists of stock wire wound around a mandril. This determines the primary wind of the coil."
"The vessel being targeted for embolisation must be adequately filled for effective and lasting occlusion. Target packing density greater than 24% is associated with less incidence of recanalisation5. Target packing density is directly proportional to the volume of space occlusion by coils. To achieve this 24% packing density, ensure that the spaces between the coil loops are eliminated with tighter and more compact coil mass. If 24% of the target volume is filled with coils, then 76% is essentially thrombus. There is a greater likelihood of recanalisation when the embolic therapeutic effect is due to thrombus formation as opposed to space occlusion."
Expected headings
"Indications"
"Mechanism of action"
"Advantages"
"Disadvantages"
"Types"
"Pushable coils"
"Advantages"
"Disadvantages"
"Injectable coils or liquid coils"
"Advantages"
"Disadvantages"
"Detachable coils"
"Advantages"
"Disadvantage"
"Construction of a Coil"
"Preprocedure planning"
"Coil delivery technique"
"Precautions"
""
"They consist of stainless steel, platinum, or Inconel (nickel-based superalloy) coils that can be bare or fibered with materials such as nylon fibre, dacron, polyester, silk, PVA, or wool to increase thrombogenicity."
"vessel dissection, perforation or rupture"
"These coils are delivered by mechanical detachment, electrolysis or via hydrostatic means."
"History and etymology"
"Primary structure; stock wire/filament"
"deliver the coil into the target vessel either by flushing with saline/contrast or by using the push technique with an appropriately sized guidewire; several techniques are described:"
"The vessel being targeted for embolisation must be adequately filled for effective and lasting occlusion. Target packing density greater than 24% is associated with less incidence of recanalisation5. Target packing density is directly proportional to the volume of space occlusion by coils. To achieve this 24% packing density, ensure that the spaces between the coil loops are eliminated with tighter and more compact coil mass. If 24% of the target volume is filled with coils, then 76% is essentially thrombus. There is a greater likelihood of recanalisation when the embolic therapeutic effect is due to thrombus formation as opposed to space occlusion."