Article Figures & Data
Figures
- Fig 1.
Hybrid hydrogel-platinum coil device. Left, Bare platinum coil. Middle, Prehydration image, showing initial profile of the device. Highly compact hydrogel material is wrapped around a platinum coil. An outer “overcoil” is wrapped around the hydrogel-covered coil. The outer diameter of the coil is 0.008 inch. The thickness of the hydrogel is approximately 0.0005 inch, such that the outer diameter of the gel covering is 0.009 inch. With the overcoil, the outer diameter is 0.013 inch. Right, Posthydration image of the device, showing marked expansion of the hydrogel material, which has become translucent. The radial thickness of the expanded hydrogel is approximately 0.009 inch, such that the total outer diameter of the hydrated device is 0.027 inch.
- Fig 2.
Scatter diagram of percent total occlusion of 11 aneurysms treated with platinum coils and 11 aneurysms treated with HES coils.
Tables
- TABLE 1:
Comparison of aneurysms treated with adjunctive HydroCoil Embolization System (HES) vs. platinum coils alone
Patient Aneurysm volume (ml) % fill total % fill HES # HES coils # platinum coils #coils/aneurysm # coils/ml HES 1 0.063 66 41 1 3 4 63 HES 2 0.042 76 62 1 1 2 48 HES 3 0.029 87 63 1 2 3 103 HES 4 0.174 87 74 4 2 6 34 HES 5 0.063 91 71 2 1 3 48 HES 6 0.113 45 23 1 5 6 53 HES 7 0.094 55 27 1 3 4 43 HES 8 0.167 56 44 2 3 5 30 HES 9 0.092 72 56 2 3 5 54 HES 10 0.026 88 72 1 1 2 77 HES 11 0.059 85 76 2 1 3 51 Mean 0.084 73 55 1.6 2.3 3.9 55 Platinum 1 0.065 34 6 6 92 Platinum 2 0.042 44 7 7 167 Platinum 3 0.034 27 3 3 88 Platinum 4 0.031 48 5 5 161 Platinum 5 0.092 18 4 4 43 Platinum 6 0.079 42 4 4 51 Platinum 7 0.113 31 6 6 53 Platinum 8 0.236 23 4 4 17 Platinum 9 0.065 22 4 4 62 Platinum 10 0.079 21 5 5 63 Platinum 11 0.038 38 3 3 79 Mean 0.079 32 4.6 4.6 80 P value .85 .0001 .23 .12 Note.—% fill total, percentage of aneurysm volume filled by embolic devices; % fill HES, percentage of aneurysm volume filled by HES coils; # coils/mL, number of coils per milliliter of aneurysm volume.
In this issue
Jump to section
Related Articles
Cited By...
- GEL THE NEC: a prospective registry evaluating the safety, ease of use, and efficacy of the HydroSoft coil as a finishing device
- An injectable shear-thinning biomaterial for endovascular embolization
- HydroCoils Are Associated with Lower Angiographic Recurrence Rates Than Are Bare Platinum Coils in Treatment of "Difficult-to-Treat" Aneurysms: A Post Hoc Subgroup Analysis of the HELPS Trial
- HydroCoils Reduce Recurrence Rates in Recently Ruptured Medium-Sized Intracranial Aneurysms: A Subgroup Analysis of the HELPS Trial
- Coil Type Does Not Affect Angiographic Follow-Up Outcomes of Cerebral Aneurysm Coiling: A Systematic Review and Meta-Analysis
- The next generation HydroCoil: initial clinical experience with the HydroFill embolic coil
- Review of 2 Decades of Aneurysm-Recurrence Literature, Part 1: Reducing Recurrence after Endovascular Coiling
- Mathematic Analysis of Incremental Packing Density with Detachable Coils: Does That Last Coil Matter Much?
- HydroCoils, Occlusion Rates, and Outcomes: A Large Single-Center Study
- Angiographic and Clinical Outcomes in 200 Consecutive Patients with Cerebral Aneurysm Treated with Hydrogel-Coated Coils
- Angiographic and Histologic Comparison of Experimental Aneurysms Embolized with Hydrogel Filaments
- Computerized Assessment of Angiographic Occlusion Rate and Coil Density in Embolized Human Cerebral Aneurysms
- Endovascular Coiling of Cerebral Aneurysms Using "Bioactive" or Coated-Coil Technologies: A Systematic Review of the Literature
- Embolization of Intracranial Aneurysms With Hydrogel-Coated Coils Versus Inert Platinum Coils: Effects on Packing Density, Coil Length and Quantity, Procedure Performance, Cost, Length of Hospital Stay, and Durability of Therapy
- Rates of Delayed Rebleeding From Intracranial Aneurysms Are Low After Surgical and Endovascular Treatment
- Matrix Detachable Coils for the Endovascular Treatment of Intracranial Aneurysms: Analysis of Early Angiographic and Clinical Outcomes
- Stroke Review: Advances in Interventional Neuroradiology 2004