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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 371 - 378 (8page)
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초록· 키워드
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Purpose: To investigate the outflow characteristics of silicone tubes with intraluminal stents used in membrane-tube (MT) type glaucoma shunt devices. Methods: The silicone tubes used in MicroMT (internal diameter of 100 μm with a 7-0 nylon intraluminal stent)and Finetube MT (internal diameter of 200 μm with a 5-0 nylon intraluminal stent) were connected to a syringe-pump that delivered a continuous flow of distilled water at flow rates of 2, 5, 10, and 25 μL/min. The pressuresand resistances of tubes were measured at a steady flow rate with full-length, half-length, and absenceof intraluminal stents. Results: The mean outflow resistance of the two types of tubes ranged from 3.0 ± 1.9 to 3.8 ± 1.7 mmHg/μL/min with a full-length intraluminal stent, 1.8 ± 1.1 to 2.2 ± 1.1 mmHg/μL/min with a half-length intraluminal stent,and 0.1 ± 0.0 to 0.2 ± 0.0 mmHg/μL/min without an intraluminal stent. Theoretically, for a physiologic state witha flow rate of 2 μL/min and episcleral venous pressure of 6 mmHg, the mean pressures of tubes were expectedto be 13.2 ± 3.0, 10.5 ± 2.4, and 6.4 ± 0.2 mmHg in MicroMT with full-length, half-length, and absence ofintraluminal stents, respectively, and 12.5 ± 3.9, 9.6 ± 2.4, and 6.2 ± 0.2 mmHg in Finetube MT with full-length,half-length, and absence of intraluminal stents, respectively. The pressure variance also decreased with intraluminalstent retraction (p < 0.01). Conclusions: The small diameter tubes of 100 and 200 μm internal diameters, with 7-0 and 5-0 nylon intraluminalstents, respectively, used in the MT-type glaucoma shunt device showed safe and effective outflow characteristics.
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참고문헌 (19)
참고문헌 신청
Barton K / 2014 / Three-year treatment outcomes in the Ahmed Baerveldt comparison study / Ophthalmology 121:1547~1557
Bailey AK / 2014 / Complications of tube implants and their management / Curr Opin Ophthalmol 25:148~153
Trible JR / 1998 / Occlusive ligature and standardized fenestration of a Baerveldt tube with and without antimetabolites for early postoperative intraocular pressure control / Ophthalmology 105:2243~2250
Sherwood MB / 1993 / Prevention of early hypotony associated with Molteno implants by a new occluding stent technique / Ophthalmology 100:85~90
Tong L / 2003 / Intraocular pressure control and complications with two-stage insertion of the Baerveldt implant / Ophthalmology 110:353~358
Bailey AK / 2014 / Complications of tube implants and their management / Curr Opin Ophthalmol 25:148~153
Trible JR / 1998 / Occlusive ligature and standardized fenestration of a Baerveldt tube with and without antimetabolites for early postoperative intraocular pressure control / Ophthalmology 105:2243~2250
Sherwood MB / 1993 / Prevention of early hypotony associated with Molteno implants by a new occluding stent technique / Ophthalmology 100:85~90
Tong L / 2003 / Intraocular pressure control and complications with two-stage insertion of the Baerveldt implant / Ophthalmology 110:353~358
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