Background And Objective: To describe a novel technique using a guarded needle to drain suprachoroidal hemorrhage.
Patients And Methods: A guarded needle is used to drain suprachoroidal hemorrhage under direct microscope visualization. A scleral buckling sleeve is used to create a guarded 26-gauge needle to avoid over-penetration of the needle beyond the suprachoroidal space. Active extrusion can be used to drain suprachoroidal blood.
Results: The authors report two cases in which active aspiration using a guarded needle was successful in draining suprachoroidal hemorrhage without complications. In both cases, the vitreous cavity could be restored, allowing for subsequent pars plana vitrectomy.
Conclusion: The technique of active aspiration using a guarded needle optimizes surgeon control of suprachoroidal hemorrhage drainage and also has the added benefit of easy transition to secondary vitrectomy after drainage has been completed.
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http://dx.doi.org/10.3928/23258160-20140306-09 | DOI Listing |
J Cutan Aesthet Surg
January 2024
Consultant Dermatologist, Mukhtar Skin Centre, Katihar, Bihar, India.
There are many instruments to prick the comedone before its extraction and scalp during hair transplantation. These instruments are not well guarded, and it can cause deep injury and fear in the patients. Here we described how to guard these needle for safety during procedure.
View Article and Find Full Text PDFRetina
December 2023
Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada.
Purpose: To describe the surgical technique using the guarded-needle external drainage for a wide variety of applications in vitreoretinal surgery.
Methods: A step-by-step procedure and a surgical video using the guarded-needle external drainage technique are presented. In addition, a series of representative cases with wide-ranging diagnoses who underwent the technique is reviewed.
Ocul Oncol Pathol
October 2021
Department of Ophthalmology, University of California-San Francisco, San Francisco, California, USA.
Introduction: Trans-scleral biopsy of uveal melanoma (UM) poses an inherent risk of tumor and possibly retinal perforation. We describe a novel technique for trans-scleral biopsy of UM and evaluate its safety and efficacy in an initial cohort of patients.
Methods: A retrospective, consecutive observational case series was conducted from October 14, 2019, to April 15, 2020, at Kaiser Permanente, San Francisco, CA among patients with UM of the ciliary body or anterior choroid undergoing trans-scleral fine-needle aspiration biopsy using a novel guarded needle technique.
J Vitreoretin Dis
January 2020
Department of Ophthalmology and Visual Sciences, W.K. Kellogg Eye Center, University of Michigan, Ann Arbor, MI, USA.
Purpose: Intravitreal injection therapy (IVT) is the most performed procedure in ophthalmology. This study was conducted to determine current trends in IVT delivery.
Methods: An online, 31-question, multiple-choice survey was sent to 1677 retina specialists.
Cold Spring Harb Perspect Biol
February 2020
Department of Microbiology and Immunology, Center for Gastrointestinal Biology and Disease, and Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
Innate immune sensors can recognize when host cells are irrevocably compromised by pathogens, and in response can trigger programmed cell death (pyroptosis, apoptosis, and necroptosis). Innate sensors can directly bind microbial ligands; for example, NAIP/NLRC4 detects flagellin/rod/needle, whereas caspase-11 detects lipopolysaccharide. Other sensors are guards that monitor normal function of cellular proteins; for instance, pyrin monitors Rho GTPases, whereas caspase-8 and receptor-interacting protein kinase (RIPK)3 guards RIPK1 transcriptional signaling.
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