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زمن التوصيل الحركي المركزي بالتحفيز المغناطيسي عبر الجمجمة وتخطيط الاعصاب لدى مرضى السكري النوع الثاني == Central motor conduction time by Transcranial magnetic stimulation and nerve conduction study in type II Diabetes Mellitus

Author name: مرتضى علي عبد الحسين
Supervisor name: امنة عبد الباقي خضر
General topic: Medicine
Specific topic: Neurophysiology
Degree: Master
Language: English
University location: Najaf
Key words:
  • Central motor conduction time, transcranial magnetic stimulation, type II Diabetes mellitus, diabetic neuropathy,
First pages:

المتغيرات الفسيولوجية العصبية عند مرضى الكحولية == Neurophysiological Study Of Patients with Alcoholism

Author name: علي حسين العطية
Supervisor name: عامر حسين الانصاري
General topic: Medicine
Specific topic: Neurophysiology
Degree: Master
Language: English
University location: Baghdad
First pages:

انتشار قصور الشرايين التاجية لدى مرضى السكري المصابين بالتهاب الاعصاب المحيطية == Prevalence of Ischemic Heart Disease in Diabetic Patients with Peripheral Neuropathy

Author name: محمد عباس كاظم العارضي
Supervisor name: يسار محمد حسن الشماع | صفاء علي خضير
General topic: Medicine
Specific topic: Neurophysiology
Degree: Doctorate
Language: English
University location: Najaf
First pages:

دراسة كهروفسلجية لاعصاب مختارة وبدون ظواهر مرضية لاناث اثناء الحمل == Electrophysiological Study of Selected Nerves in Neurologically Non-Complaining Females During Pregnancy

Author name: هدى نعمة محسن الكفائي
Supervisor name: احسان محمد عبود عجينة
General topic: Medicine
Specific topic: Neurophysiology
Degree: Master
Language: English
University location: Najaf
First pages:

التصوير الحراري وفحص اجهاد البرودة في تشخيص متلازمة نفق الرسغ == Thermal imaging and cold stress test in carpal tunnel syndrome diagnosis

Author name: حميد نعمة الكفائي
Supervisor name: يسار محمد حسن الشماع
General topic: Medicine
Specific topic: Neurophysiology
Degree: Doctorate
Language: English
University location: Najaf
First pages:

صلاحية فحوصات الفسلجة العصبية بتنبؤ شدة متلاكمة غوليان باري وباستحقاق التنفس الاصطناعي == Validity of neurophysiological study in prediction of severity of Guillain - Barre syndrome and the indication for mechanical ventilation

Author name: بلال صادق عبد الباقي
Supervisor name: نجیب حسن محمد | زكي نوح حسن
General topic: Medicine
Specific topic: Neurophysiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: Guillain - Barre syndrome is an acute monophasic, non - febrile postinfectious illness manifesting as ascending weakness, and areflexia.However, sensory, autonomic and brainstem abnormalities may also seen. It is one of the most common causes of acute motor paralysis. In addition to the clinical presentation, those patients may develop neurophysiological features suggestive of demyelinating neuropathy.However, an axonal form had been reported. Hence, the importance of electrophysiological study; nerve conduction study (NCS) and electromyography (EMG) in the neurological evaluation of the severity of Guillain - Barre syndrome and the indication for mechanical ventilation.This study aimed to evaluate the neurophysiological study in prediction the severity of GBS, assess the usefulness of neurophysiology in prediction of respiratory muscles involvement and find out whether the neurophysiological study of peripheral nerves can predict the indications of mechanical ventilation.Two groups of patients are involved in this study. 22 Patients with GBS in the neuromedical wards and 18 patients in the respiratory care units (RCU).The mean age of the two groups were (47+\ - 24 years) with female predominance (1.22 : 1).Each patient submitted to brief medical history, clinical examination and neurophysiological study. This study was conducted at the neuromedical wards and RCU departments of Hospital of neurosciences, Baghdad and ALyarmuk teaching hospitals in a period from December 2017 to June 2018.The neurophysiological assessments involve the following tests : 1. Sensory NCS of bilateral median, ulnar and sural nerves involve sensory latency and sensory nerve action potential (SNAP). 2. Motor NCS of bilateral median, ulnar, common peroneal and tibial nerves involve the motor latency, compound motor action potential (CMAP), motor nerve conduction velocity (MNCV), conductions block and temporal dispersion.3. Minimal F wave latency of bilateral median, ulnar, common peroneal and tibial nerves.4. Needle EMG for bilateral proximal and distal muscles of upper (first dorsal interosseous) and lower limbs (tibialis anterior and extensor digitorium brevis) in which insertional activity, spontaneous activity, motor unit action potential MUAP and interference pattern were applied.The results of this study reveal that F wave and distal motor latencies of the left median, left ulnar, left peroneal, left tibial, right ulnar, right peroneal and right tibial nerves are significantly different between studied groups. Where there are prolonged latencies which could be considered as an indicator for admission to the RCU.Moreover, the reduced compound motor action potential (CMAP) and decrease conductive velocity (CV) in nearly all nerves are significantly different between studied groups and can also increase the chance for admission to the RCU.Concerning sensory abnormalities recorded in this study there are a reduced sensory nerve action potential of left median nerve or a prolonged left ulnar sensory latency when compared to the right ulnar and median sensory study and also increase the risk for admission to the RCU. Interestingly, what was noticed in this study, there are asymmetrical findings in nerve conductive parameters of the same patient involving not only the motor nerves rather than the sensory nerves too.This study concluded that the neurophysiological study can predict the severity of Guillain - Barre syndrome mainly the prolongation of F wave and motor latencies. The peripheral neurophysiological findings are useful in prediction of respiratory muscles involvement by GBS depending on CMAP and conductive velocity. There are asymmetrical finding changes in the studied neurophysiological parameters more apparently involving the sensory nerves of the same patients. Extremes of an age (<30yrs and >50yrs) represent a risk factor if not an indicator for RCU admission.

التقييم الكهروفسلجي للانواع الفرعيه لمتلازمة غوليان - باريه لشريحه من الاطفال العراقيين == ELECTROPHYSIOLOGICAL ASSESSMENT OF GUILLAIN - BARRE SUBTYPES IN A SAMPLE OF IRAQI CHILDREN

Author name: لميس منصور حسين
Supervisor name: نجيب حسن محمد
General topic: Medicine
Specific topic: Neurophysiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: Guillain - Barre syndrome represents the most common cause of acute motor paralysis in children. It is clinically characterized by an acute non - febrile, post - infectious illness marked as ascending weakness, and areflexia. However; sensory, autonomic and brainstem abnormalities may also be seen.This study aimed to assess the role of electrophysiological study (NCS and EMG) in the diagnosis of Guillain - Barre syndrome subtypes in children, estimate the frequency of subtypes whether demyelinating or axonal form of Guillain - Barre syndrome and match the electrophysiological results with the findings of CSF protein analysis.Two groups of either sex are involved in this study, children with Guillain - Barre (19 males and 11 females) with a mean age of (5 ± 2) years and normal healthy children served as control group (16 males and 14 females) matched for gender and age with a mean age of (6 ± 3) years. Each child submitted to medical history, brief clinical examination, and electrophysiological study. This study was performed at the unit of neurophysiology of Baghdad teaching hospital and Nursing house hospital in a period from December/2015 to June/2016.The electrophysiological assessments involve the following tests : 1 - Sensory NCS for bilateral median, right ulnar and bilateral medial plantar nerves in which latency, sensory nerve action potential amplitude (SNAP) and sensory nerve conduction velocity (SNCV) were studied.2 - Motor NCS for bilateral median, right ulnar and bilateral common peroneal nerves (fibular nerve) in which, distal motor latency (DML),compound muscle action potential amplitude (CMAP), motor nerve onduction velocity (MNCV), conduction block and temporal dispersio were performed.3 - Minimal F - wave latency for bilateral median, right ulnar and bilateral fibular nerves.4 - H - reflex latency of bilateral tibial nerve.5 - Needle EMG for bilateral proximal and distal muscles of upper (first dorsal interosseous) and lower limbs (tibialis anterior and extensor digitorum brevis) in which insertional activity, spontaneous activity, motor unit action potential MUAP and interference pattern were applied.The results of this study revealed that acute inflammatory demyelinating polyneuropathy (AIDP) is the most frequent subtype followed by acute motor axonal neuropathy (AMAN) and acute motor sensory axonal neuropathy (AMSAN) respectively. Children with an age (3 - 6) years among other age groups are more vulnerable to develop GBS following infection in the preceding 3 months.The sensory nerve parameters (sensory latency is prolonged, SNAP is reduced and SNCV is slowed) are significantly changed between GBS children and control groups.The motor nerve parameters (DML is prolonged, CMAP is reduced and MNCV is slowed) are significantly changed between GBS children and control groups. Moreover among the GBS subtypes, there were significant differences in which the prolonged (DML) mostly in AIDP subtype, while the reduced (CMAP) mostly in axonal subtype was reported.Concerning minimal F - wave, it was absent in lower limbs more than upper limbs (46.6% and 26.6% respectively). Whereas H - reflex was absent in (73.3%) of children.Needle EMG had showed reduced recruitment in all GBS subtypes in addition to the evidence of spontaneous activity particularly in axonal subtype.In conclusion, this study detected that the AIDP was the most frequent subtype of GBS compared to others. Motor nerve conduction study is more useful than sensory nerve conduction study in GBS subtyping.Additionally Late responses (minimal F - wave and H - reflex) are very informative in the early course of the disease since they reflect the involvement of proximal nerve segment, which is more vulnerable to demyelination than terminal and intermediate nerve trunk segments, in addition CSF protein analysis showed no significant differences between GBS subtypes.

الدراسة الكهروفسلجية وحالة الاجهاد التاكسدي في مرض تصلب الاعصاب المنتشر == NEUROPHYSIOLOGICAL STUDY AND OXIDATIVE STATUS IN MULTIPLE SCLEROSIS

Author name: عمار احمــد ثامـــر
General topic: Medicine
Specific topic: Neurophysiology
Degree: Doctorate
Language: English
University location: Baghdad
Key words:
  • قسم الفسلجة السريرية
First pages:
Abstract: تصلب الاعصاب المنتشر مرض التهابي مزمن مجهول السبب، يتصف بفقدان الميالين (النخاعين) مع الميل الى اصابة محور الليف العصبي، ويصيب الاشخاص في الاعمار المتوسطة من حياتهم مع ارجحية اصابة النساء اكثر من الرجال.اشتملت الدراسة على فحوص الكهروفسلجية والكيمياء الحيوية بالاضافة الى فحوص شعاعية، لمئة واثني عشر مريضا مشخصا سريريا وفقا لمعايير مكدونالد (McDonald's criteria) وقورنت نتائجهم مع مجموعة ضابطة تضم خمسين شخصا متطوعا ومعافي.احتوت الفحوص الكهروفسلجية دراسة كامن العصب البصري المثار، في حين اشتملت الفحوص الكيميائيحيوية على قياس تراكيز النحاس ، الزنك ، المغنيسيوم ونسبة الزنك/النحاس في مصل الدم بالاضافة الى الفحوص الشعاعية بواسطة جهاز الرنين المغناطيسي.اشارت النتائج الى وجود زيادة معنوية في متوسط كمون الموجه الموجبة (P100) ولمتوسط فرق الكمون بين العينين مع نقصان معنوي لمتوسط مدى المركب (N75 - P100) لمرضى تصلب الاعصاب المنتشر، في حين لم يوجد فرق معنوي في متوسط فرق المدى للمركب (N75 - P100) بين العينين عندما قورنت بقيم المجوعة الضابطة. وكان الاكثر شذوذا في فحص كامن العصب البصري المثار لمرضى تصلب الاعصاب المنتشر هو الاطالة في كمون الموجة الموجبة (P100) ثم الاطالة في فرق الكمون بين العينين ومن ثم التغير في شكل الموجة ثم الاختزال في متوسط فرق المدى المركب (N75 - P100)، في حين كان الاختزال في متوسط مدى المركب (N75 - P100) الاقل تغيرا. وذلك يرجح التاثير الرئيسي لازالة الميالين على التوصيل والمتمثل كهروفسلجيا بزيادة الكمون.كانت هناك علاقة خطية موجبة بين نسبة العجز السريري للمرضى حسب مقياس كرتزك (Kurtzke) مع كمون الموجة الموجبة (P100) بينما كانت العلاقة الخطية سالبة مع مدى المركب (N75 - P100). وهذا يعني ان زيادة معدل العجز للمرضى يترافق بزيادة في عمليات ازالة الميالين مع الميل الى اصابة محور العصب.اظهرت دراسة الفحص الشعاعي ان جميع المرضى كانت لديهم لطخات في جهازهم العصبي المركزي حسب الفحص بالنموذج الثاني، وان توزيع اللطخات لا يتاثر مع العمر او نوع مرض تصلب الاعصاب المنتشر. بالاضافة لذلك كانت هناك علاقة خطية موجبة بين العدد الكلي للطخات مع نسبة العجز السريري، كذلك زيادة نسبة العجز السريري لدى المرضى المصابين بنوع الازدياد الاولي والثانوي عن غيرهم من الانواع، اضافة الى زيادة عدد اللطخات عند المرضى المصابين بنوع الازدياد الاولي والثاني على غيرهم من انواع المرضى.اظهرت الدراسة زيادة معنوية في تركيز النحاس ونقصان معنوي في تركيز الزنك والمغنيسيوم ونسبة الزنك/النحاس في مصل الدم عند المرضى، مما يشير لوجود عملية اجهاد تاكسدي لدى مرضى تصلب الاعصاب المنتشر.بالاضافة لذلك وجد ان هناك علاقة خطية موجبة بين نسبة العجز السريري للمرضى حسب مقياس كرتزك (Kurtzke) مع تركيز النحاس بينما كانت العلاقة الخطية سالبة مع تركيز كل من الزنك والمغنيسيوم ونسبة الزنك/النحاس في مصل الدم عند المرضى.يستنتج من هذه الدراسة ما يلي : 1. ان فحص كامن العصب البصري المثار يعكس انحدار في وظيفة المجال الكلي للنظر ويؤيد الدراسات السابقة في كشف الافات غير الظاهرة سريريا.2. امكانية جعل عجز مرضى تصلب الاعصاب ان يكون بشكل محسا وموضوعيا عن طريق هذا الفحص الكهروفسلجي.3. ان فحص الرنين المغناطيسي يستطيع ان يكشف اللطخات اكثر في نوع الازدياد الاولي والثانوي اكثر من بقية انواع مرض تصلب الاعصاب المنتشر.4. ان نسبة العجز السريري لدى مرضى تصلب الاعصاب المنتشر بنوعيه الازدياد الاولي والثانوي هي اكثر من بقية الانواع.5. كلما ازداد عدد اللطخات في الجهاز العصبي المركزي للمرضى كلمزاادت نسبة العجز السريري.6. وجود اختلال في التوازن الطبيعي بين الجذور الحرة ومضادات الاكسدة مع الميل باتجاه زيادة الاجهاد التاكسدي لدى مرضى تصلب الاعصاب المنتشر.7. امكانية الوصول الى تقييم مستوى العجز الحركي للمرضى بطرق كيميائيحيوية مثل قياس تركيز النحاس، الزنك والمغنيسيوم في مصل الدم.8. التغيرات الحاصلة نحو الاجهاد التاكسدي واختلاف االعناصر الزهيدة قد يكون السبب للمرض، او مرحلة من مراحل الامراض او نتيجة للمرض، وبكل الحالات يظهر انه يلعب دورا فعالا في هذا المرض ويحتاج الى المزيد من الدراسات المستقبلية. | Multiple sclerosis (MS) is an idiopathic chronic inflammatory disease characterized by demyelination that can be associated with axonal degeneration and is the leading cause of a non - traumatic neurological disability in young adults, with female affection more than male. This study was designated to assess the (1) changes in Visual Evoked Potential (VEP), (2) their frequency in MS patients with and without visual symptoms, (3) evaluate the oxidative status and trace elements in patients with MS, (4) correlate the results of VEP and biochemical studies with the disability of MS patients, in addition to assessing the Magnetic Resonance Imaging (MRI) findings in these patients and their changes with the disability status of patients with MS.Electrophysiological and biochemical studies in addition to imaging examination, had been carried out on 112 patients (35 males and 77 females) who were assessed clinically having definite MS, and fulfilled McDonald's Committee criteria and 50 normal control subjects (17 males and 33 females).Electrophysiological study involved visual evoked potential (VEP) of both eyes, in which P100 latency and P100 interocular (IO) latencies with amplitudes of N75 - P100 complex in addition to P100 interocular amplitude were examined, while Biochemical assay involved the evaluation of the oxidative stress by measuring the concentration of serum Copper, Zinc and Magnesium, in addition to the zinc/copper ratio measurement.This study reported statistically significant increase in the P100 latency and interocular latency difference, and a significant decrease in the N75 - P100 complex amplitude, while there was no significant difference in the IO amplitude difference between MS patients and control.The changes in the P100 latencies were more frequently recorded then the IO latency difference, while IO amplitude difference, N75 - P100 complex amplitude and the wave - form of potentials were the least, which is due to the demyelination effects on nerve conduction, and collectively, VEP abnormality was present in (79.46 %) of the examined MS patients.The changes in the VEP parameters recorded in MS patients who have clinical visual presentations, and the changes were also present in those patients without visual clinical picture, which indicates the presence of subclinical lesions in the visual pathways, this fact makes VEP test as an important diagnostic aid in MS patients.Moreover, the results of this study present a positive correlation between the P100 latencies with the patients disability (EDSS score), while with a negative correlation between the amplitudes of VEP potentials with the same score of MS disability.Regarding, neuroimaging, the distribution of MS lesions in the CNS is neither correlated with the type of MS nor the age of patients. While, the patients disability is increased with the increase of total number of MRI lesions. However, patients disability is more with the progressive forms of MS in which more number of MRI lesions in their CNS than other forms of MS disease are detected.Biochemically, the study for oxidative stress reveal a highly significant increase in the serum copper, and a significant decrease in the serum zinc, magnesium and zinc/copper ratio levels.The association between different clinical presentations and biochemical findings was not evident, however, there was a positive correlation between the clinical disability score (EDSS) with the serum concentration of Copper, and a negative correlation with that of Zinc, Magnesium and Zinc/Copper ratio.In conclusion, this study shows : 1 - VEP study can reveal a suspected deterioration of visual function and objectivate unsuspected clinically silent lesions.2 - Disability and physical deterioration of MS patients can be quantified and clarified by using this electrophysiological test. 3 - It manifests that MRI reveals CNS lesions in progressive forms more than other forms of MS.4 - Patients with the progressive forms associate with more disability.5 - The patients disability correlates with the total number of MRI lesion in MS patients.6 - It suggested the existence of a clear imbalance in oxidant - antioxidant status, towards an increasing oxidative state in MS patients.7 - Physical disability of MS patients can also be quantified by biochemical studies and serum Copper, Zinc, Magnesium and Zinc/Copper ratio levels can be used as biological markers of patients disability. 8 - The changes in the oxidative state and trace elements metabolism in MS, may be the cause behind the disease, a stage during its pathogenesis, or as a results of it, in all states they seems to have a potential role in this disease and need further studies to clarify it.

جـريان الـدم فـي متلازمـة نفق الرسغ == Blood Flow In Carpal Tunnel Syndrome

Author name: حميد نعمة الكفائي
Supervisor name: يسار محمد حسن الشماع | حيدر كاظم حسون
General topic: Medicine
Specific topic: Neurophysiology
Degree: Master
Language: English
University location: Najaf
First pages: