Investigation of the Utility of the Audible Alert in Current Generation Medtronic ICDs
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 100
- 试验地点
- 1
- 主要终点
- Audibility
研究概览
简要总结
The purpose of this study is to determine whether the alert tones emitted by the latest generation of Medtronic implantable cardioverter-defibrillators (ICDs) are audible to patients.
ICD patients can have difficulties hearing the beeps, which are designed to notify patients of possible lead or generator malfunction. In fact, the only published study of this issue, conducted at Englewood Hospital and Medical Center, revealed that only 50% of patients with older Medtronic devices were able to hear alerts. Since then, modifications to the alert have been made by Medtronic. This study will establish the "real-world" value of these changes and also provide useful in vivo information regarding the validity of the in vitro techniques which have been used thus far to design the Patient Alert feature.
详细描述
There will be a single study visit. In a quiet examination room, the Patient Alert tones will be demonstrated to the subjects. Subsequently, this will be repeated with a wall air conditioner turned on. The subjects will then be asked to complete a three-part questionnaire regarding their perceptions of the Patient Alert tones.
Data analysis will include overall ability to hear tones, as well as subgroup analysis according to gender, age, and BMI.
Simultaneously, in order to calculate the loudness of the alert tones, digital recordings will be obtained using two microphones located near the subject. These digital recordings will be analyzed, and a loudness value will be calculated. The loudness value is a calculated index, devised by Medtronic, which incorporates frequency and intensity. Data analysis will include a correlation between loudness value and patient characteristics, and between loudness value and ability of subjects to perceive the tones.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Previous insertion of a Medtronic Generation 2 ICD (Consulta, Secura, Concerto II, Virtuoso II, Maximo II devices) not fewer than 7 days prior to study entry
- •Able to provide informed consent
排除标准
- •Known deafness
- •Recent (fewer than 6 weeks) ICD pocket surgery
- •Non-Generation 2 Medtronic ICD
- •Pocket hematoma
- •Pocket infection
结局指标
主要结局
Audibility
时间窗: participants will be tested during a single, routine clinic visit - the average duration for each patient will be 30 minutes
how frequently patients are able to detect the alert tones
次要结局
- Loudness value(1 month)