در اندام فوقاني H تعيين ميزان رفرانس رفلكس

REFERENCE VALUE OF H-REFLEX IN UPPER EXTREMITIES

Background & Aim: In cervical radiculopathies, C7 & C6 roots are the mos tcommon sites of involvement and to less signs like denervations & EMG finding in upper extremities than lower extremities radiculopathies. It seems that using of H. reflex of flexor carpiradialis in upper limbs the simple & possible early clue for evaluation & possible early clue for evaluation of cervical radiculopathies. Each electrodiagnostic center needs its own data & because there was no study in Iran till now. We decided to evaluate & standardize the H. reflex latency of flexor carpiradialis in our center. Materials & Methods: This study was done in 1380-1381 on random cases in urmia physical medicine & rehabilitation center of Imam Khomeini hospital who had no clinical sings & .symptoms in upper extremities & neck area. 78 cases were studied with stimulation of median nerve at antecubital & recording from flexor carpi radialis with standard method. Results: In this study on 78 cases H.Reflex was recorded in 90% of cases who were 23 men & 56 women with mean age of 35.6 years for males & 37.4 years for females whose H. Reflex was 16.5 m.s with standard deviation of 1.07 in males & 15.2 m.s with standard deviation of 0.7 in females. There was no significant difference between RT & LT side. The most correlation was between H. reflex latency & forearm length & then nerve condition velocity of median nerve in forearm. Conclusion: Using of these study data in cervical radiculopathy is so helpful & can be the introduction of resolving in evaluation of cervical radiculopathies & future studies.