بررسی تکرارپذیری اجزای پاسخ های عضلانی برانگیخته دهلیزی در ثبت از راه هوایی و استخوانی در افراد هنجار

نوع مقاله: مقاله پژوهشی

نویسندگان

1 1. مربی گروه شنوایی شناسی، دانشکده علوم توابخشی، دانشگاه علوم پزشکی شهید بهشتی. تهران، ایران

2 2. کمیته پژوهشی دانشجویی، کارشناس ارشد شنوایی شناسی، دانشکده علوم توابخشی، دانشگاه علوم پزشکی شهید بهشتی. تهران، ایران

3 3. دانشجوی دکترای شنوایی شناسی دانشگاه علوم پزشکی تهران، مربی گروه شنوایی شناسی، دانشکده علوم توابخشی، دانشگاه علوم پزشکی شهید بهشتی. تهران، ایران

4 4. دانشیار آمار زیستی، گروه علوم پایه، دانشکده علوم توابخشی، دانشگاه علوم پزشکی شهید بهشتی. تهران، ایران

10.22037/jrm.2015.1100151

چکیده

مقدمه و اهداف
هدف از این مطالعه بررسی تکرارپذیری اجزای پاسخ های عضلانی برانگیخته دهلیزی  با محرک تن برست  در ثبت از راه هوایی و استخوانی در افراد هنجار در کلینیک های که تنها روش فیدبک برای کنترل میزان انقباض عضله قابل دسترسی است.
مواد و روش ها
40 فرد جوان هنجار در (19 تا 30 سال با میانگین سنی 62/23 سال) در این بررسی شرکت کردند. آزمونCervical Vestibular Evoked Myogenic (cVEMP) Potentialدر دو مرحله با فاصله ی زمانی دو تا سه روز  و دو روش ثبت هوایی و استخوانی با محرک تن برست 500 هرتز با دیوریشن های 4 و 7 میلی ثانیه و استفاده ازروش فیدبک برای کنترل میزان انقباض عضله انجام شد.    
یافته ها
میزان تکرارپذیری پارامترهای آزمون cVEMP در روش(AC)  Air Conduction در محدوده ای ضعیف تا خوب و حتی عالی، در روش Bone Conduction (BC)  با دیورشن 4 میلی ثانیه در محدوده ای ضعیف تا خوب و در روش BC  با دیورشن 7 میلی ثانیه در محدوده ای خیلی ضعیف تا خوب قرار دارد. زمان نهفتگی  n23نسبت به  p13 پایاتر است و در روش AC  دامنه ها پایاتر از زمان نهفتگی بود ولی در روش BC زمان نهفتگی پایاتر از دامنه ها بود، در کل پایایی روش  ACبیشتر از روش  BCاست.
نتیجه گیری
روش فیدبک نشان داد که نتایج این بررسی با سایر مطالعات که در شرایط مختلفی انجام شده قابل مقایسه است و در کل می توان گفت تکرارپذیری پارامترهای آزمون cVEMP در محدوده ای ضعیف تا خوب قرار دارد. و توصیه می شود کلینیسین ها در هنگام تفسیر پاسخ های آزمون  cVEMPاز یافته های این پژوهش استفاده کنند.

کلیدواژه‌ها


عنوان مقاله [English]

Test-retest Reliability of vestibular evoked myogenic potential components in air and bone conduction procedures in normal subjects

نویسندگان [English]

  • Homa Zarrinkoob 1
  • Iman Jalilvand 2
  • Majid Ashrafi 3
  • Alireza Akbarzadeh-Baghban 4
1 1. Lecturer of Audiology, Faculty of Rehabilitation Scienses, Shahid Beheshti University of Medical Sciences, Tehran. Iran
2 2. Student Research Committee, MSc Student of Audiology, Faculty of Rehabilitation Scienses, Shahid Beheshti University of Medical Sciences, Tehran. Iran
3 3. PhD candidate of Audiology and Lecturer, Department of Audiology, Shahid Beheshti University of Medical Sciences, Tehran. Iran
4 4. Associate professor of Biostatistics, Faculty of Rehabilitation Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
چکیده [English]

Background and Aim: The purpose of this study was to evaluate the reliability of the vestibular evoked myogenic potential (VEMP) response in clinics where only a feedback method is available for monitoring background EMG.
Materials and Methods: forty healthy young subjects (mean age of 23/62 years old) participated in the investigation of the within-session reliability. They were retested again after 2 to 3 days for the between-session reliability. VEMPs were recorded in air and bone conduction procedures using 500 Hz tone bursts with durations of 4 and 7 milliseconds and use of feedback method for control of muscle contraction. 
Results: The intraclass correlation coefficient value for air conduction was found to have fair-to-good reliability and for bone conduction (4 millisecond) the correlation was found to be fair-to-good. For bone conduction (7 millisecond) the correlation was found to be poor-to-good. The latency of n23 was more reliable than the latency of p13. For AC procedure amplitudes were more reliable than the latencies but for BC procedure latencies were more reliable than amplitudes. Overall air conduction procedure was more reliable than bone conduction procedure.
Conclusion: Overall, VEMP response parameters were found to have fair to good test-retest reliability. The feedback method revealed that the results of this study are comparable to other data in the literature where different test conditions were applied. Clinicians should consider these findings when interpreting VEMP responses

کلیدواژه‌ها [English]

  • Test-retest reliability
  • air conduction
  • bone conduction
  • cVEMP
  • feedback method
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