Follicular Flushing Using Double Lumen Needle Versus Direct Aspiration in Low Prognosis Patients According to the POSEIDON Criteria
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 40
- 试验地点
- 2
- 主要终点
- number of cumulus-oocyte complexes
研究概览
简要总结
This is a prospective, randomized, controlled clinical trial designed to evaluate whether follicular flushing increases the number of cumulus-oocyte complexes (COCs) retrieved compared to single aspiration in patients with poor ovarian response belonging to Poseidon groups 3 and 4.
A total of 40 patients with poor ovarian response belonging to Poseidon groups 3 and 4 will be included. In each patient, one ovary will be randomized to the study technique (follicular flushing), and the other ovary will be randomized to the control technique (single aspiration).
详细描述
This is a prospective, randomized, controlled clinical study designed to evaluate the effect of follicular flushing on the number of cumulus-oocyte complexes (COCs) retrieved, compared to single aspiration, in patients with poor ovarian response classified as Poseidon groups 3 and 4.
A total of 40 patients will be included. All participants will receive a standardized stimulation protocol consistent with current practice for patients diagnosed with low ovarian reserve. After meeting all inclusion criteria, controlled ovarian stimulation will begin within the first four days of the menstrual cycle, using an antagonist protocol in all cases.
Starting on the 6th day of ovarian stimulation, daily administration of a GnRH antagonist at a dose of 0.25 mg (Ganirelix® or Cetrorelix®) will be initiated. Final oocyte maturation will be triggered once at least one follicle reaches a diameter of ≥17 mm, using either 250 μg of recombinant hCG (Ovitrelle®; Merck Serono) or 0.2 mg of triptorelin acetate (Decapeptyl®), or a double trigger. Oocyte retrieval will be performed 36 hours after triggering final oocyte maturation.
On the day of oocyte retrieval, randomization will be performed using a computer-generated randomization list. In each patient, one ovary will be randomly assigned to the control group (single aspiration), and the contralateral ovary will be assigned to the study group (follicular flushing). Simple random allocation will be used. Each patient will be allowed to participate in the study only once.
Oocyte retrieval procedures will be performed by four trained physicians to evaluate the reproducibility and generalizability of the technique. Follicles will be aspirated using 17G needles in both groups. For follicular flushing, the same needle model used for single aspiration (Cook) will be employed. To eliminate dead space, the needle will be prefilled with flushing medium before beginning the procedure. Aspiration pressure will be maintained at 190 mmHg during oocyte retrieval.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Double (Participant, Care Provider)
入排标准
- 年龄范围
- — 至 43 Years（Child, Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Pacientes con baja respuesta ovárica grupos POSEIDON 3 y 4 (< 35 años y RFA <5 y/o AMH < 1.2 ng/ml o > 35 años≥ 35 años y RFA <5 o AMH <1.2 ng/mL respectivamente)
- •Pacientes menores o igual a 43 años.
- •Índice de Masa Corporal (IMC) de 18-35 kg/m2
- •Estimulación ovárica para ICSI
- •Presencia y accesibilidad de ambos ovarios.
- •Ausencia de patología ovárica
- •Cuando se cumplan los criterios de desencadenamiento para la maduración final del ovocito, cada ovario debe contener al menos un folículo mayor o igual a 14 mm.
- •Haber dado su consentimiento por escrito.
排除标准
- •Presence of a single ovary.
- •Presence of ovarian pathology.
- •Use of conventional IVF as the fertilization method.
研究组 & 干预措施
Single Aspiration Arm
Oocytes will be retrieved from one ovary using single follicular aspiration
干预措施: follicular aspiration (Procedure)
Follicular Flushing Arm
Oocytes will be retrieved from the contralateral ovary using follicular flushing, with up to three flushes per follicle if no cumulus-oocyte complex is obtained initially
干预措施: follicular flushing (Procedure)
结局指标
主要结局
number of cumulus-oocyte complexes
时间窗: During the egg retrieval
number of cumulus-oocyte complexes (COCs) retrieved after each aspiration
次要结局
- Oocyte recovery rate(day of the egg retrieval)
- Fertilization rate(1 day after the egg retrieval)
- Empty follicle rate(day of the egg retrieval)
- Procedure time(In seconds from needle insertion to its withdrawal for each ovary)
研究者
Dr. Paolo Cirillo
principal investigator
Instituto Bernabeu