PEELED INTERNAL LIMITING MEMBRANE REPOSITION

Официальное название

PEELED INTERNAL LIMITING MEMBRANE REPOSITION FOR IDIOPATHIC MACULAR HOLES: A Single-centre, Randomized, Prospective Controlled Trial

Обзор

Macular hiatus (MH) refers to a tissue defect in the photoreceptor cell layer of the inner boundary membrane of the optic disc in the macular region. Among them, idiopathic macular hiatus (IMH) is more common in people over 60 years old and is a common eye disease. With the aging of society, the number of patients increases, and it severely damages the patients' vision and life quality. Previously, the conventional surgical approach for treating MH was vitrectomy combined with inner limiting membrane (ILM) peeling. Although the closure rate of MH is high, many damages to the morphology and function of the ILM peeled area have been found. Our team firstly report a novel technique of peeled ILM reposition. Compared to traditional ILM peeling, the novel technique peeled ILM reposition maintains the integrity of internal retina by "pull" back the ILM flap. The previous pilot clinical study suggests that the novel technique peeled ILM reposition surgical intervention can achieve better morphology and functional prognosis. However, there is currently a lack of larger sample size prospective randomized controlled studies to further clarify the clinical efficacy of this new surgical technique in treating IMH. This study aims to conduct a single center, prospective, and randomized controlled study, combined with previous work, to analyze the efficacy of this novel technique peeled ILM peeling in the treatment of IMH. We hypothesize that this novel technique can achieved better morphological and functional prognosis compared to traditional ILM peeling.

Вмешательства

• Процедура Peeled ILM Reposition
  The ILM was stained using 0.1 mL of indocyanine green（ICG) for approximately 1minute after PPV. The ILM was grasped with end gripping forceps (Grieshaber Maxgrip 723.13; Alcon Laboratories Inc) at a point away from the center of MH around one disc diameter in inferior quadrant of macular area. First, a horizontal ILM strip was peeled off with a width approximately 1.5 to 2.5 disc diameter. Then, the edge of the horizontal ILM strip was grasped and peeled from inferior to superior area continuous
• Процедура ILM Peeling
  The ILM was stained using 0.1 mL of indocyanine green（ICG) for approximately 1minute after PPV. The ILM was grasped with end gripping forceps (Grieshaber Maxgrip 723.13; Alcon Laboratories Inc). The strand of ILM was peeled off radially from the foveal center to the vascular arcade. As a result, a round-shaped, 2.5-disk diameter to 3.5-disk diameter ILM-peeled area was created.

Первичные конечные точки

• The change in the best corrected visual acuity (BCVA) from baseline to 6 months postoperatively [Срок оценки: Pre-operatively, 1-month postoperatively, 3-month postoperatively, 6-month postoperatively,]

Вторичные конечные точки (7)

• The MH closure rate [Срок оценки: 1-month postoperatively]
• The range of inner retinal dimpling [Срок оценки: 1-month postoperatively, 3-month postoperatively, 6-month postoperatively,]
• Postoperative retinal thickness [Срок оценки: Pre-operatively, 1-month postoperatively, 3-month postoperatively, 6-month postoperatively,]
• The fixation stability and sensitivity threshold [Срок оценки: Pre-operatively, 3-month postoperatively, 6-month postoperatively,]
• mfERG P1 wave density amplitudes [Срок оценки: Pre-operatively, 3-month postoperatively, 6-month postoperatively,]
• M-score values [Срок оценки: Pre-operatively, 1-month postoperatively, 3-month postoperatively, 6-month postoperatively,]
• NEI-VFQ-25 questionnaire scores [Срок оценки: Pre-operatively, 1-month postoperatively, 3-month postoperatively, 6-month postoperatively,]

Критерии участия

Критерии включения

• The patients are diagnosed as MH with a diameter ≤ 600 µm by optical coherence tomography.
• Age ranges from 50 to 80 years.
• Do not participate in other clinical studies.
• Agree to sign an informed consent form with good compliance.

Критерии исключения

• Traumatic macular hole.
• Combined with serious epiretinal membrane.
• Combined with diabetic retinopathy, hypertensive retinopathy.
• Combined with other ocular diseases, such as keratitis，uveitis，retinal vasculitis.
• Spherical equivalent ≥ -6.0 diopters or axial length ≥ 26 mm.
• History of intraocular surgery.
• Presence of staphyloma.
• Other ocular diseases that influence macular microstructure or visual function.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Нет

Дизайн исследования

Распределение

Рандомизированное

Модель

Параллельные группы

Маскирование

Двойное слепое

Основная цель

Лечение

Центры проведения

Китай · 1 центр

• Xinhua Hospital Affiliated to Shanghai Jiaotong University Medicine School — Шанхай

Идентификаторы

NCT: NCT06359548 · XH-24-002

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

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