Showing posts with label Collections. Show all posts
Showing posts with label Collections. Show all posts

Thursday, March 25, 2010

-Guillain Barré syndrome.

Guillain Barré syndrome

Aetiology(theories):-

  • Postinfection:50% of cases have preceding respiratory or GIT viral infection.
  • Post vaccination:following vaccination against swine flu virus.
  • Lymphoma.
  • Autoimmune theory.
Clinical Picture:-
1-Initial febrile illness.
2-Motor affection:-

  • Bilateral symmetrical ascending affection of both lower limbs,trunk,upper limbs,Bulbar muscles,facial muscles then diphragm and respiratory muscles.
  • The Affection is proximal more than distal in adult.
  • The Affection is proximal more than distal in infant and childrens.
  • Weakness is associated with hypotonia and areflexia.

Wednesday, March 24, 2010

-Lambert-Eaton syndrome.


Lambert-Eaton syndrome
or
Myasthenic-myopayhic syndrome.

*Pathophysiology:-

  • a myasthenic syndrome due to autoimmune orocess targeting the mechanism of releasing A.CH from nerve terminals.
  • It often associated with bronchogenic carcinoma or other malignancies.
*Clinical picture:-
Proximal weakness,wasting and fatigue but with less common ocular and bulbar affection than Myasthenia.

*Diagnosis:-

  • EMG:- shows paradoxical increase  in successive muscle contractions.
  • No significant response to prostigmine,but respond to guanidine HCL 20 mg/Kg/day or prednisolone+imuran.
  • No acetylecholine receptor antibodies.
  • CXR to determine if associated with bronchogenic carcinoma or not.
*Treatment:-
  • Treatment of the underlying neoplasm.
  • Plasmapheresis.
  • Immunosuppression.

Dr Ibrahim

Return to list of medical syndromes here

Wednesday, March 17, 2010

-Vircow's triad.


Vircow's triad is the aetiology of thrombosis which is composed of :-

1-Damage of vascular endothelium(Vascular trauma):-
this damage expose the endothelial collagen which is rough surface to which platelets can stick firmly and release thromboxane A2 that help more platelet aggregation.

2-Slowing(Reduced)in the blood flow (stasis):-
these changes help thrombosis by allowing the platelets to deviate from the axial stream and cross the peripheral plasmatic zone to stick to the vascular endothelium.

3-Change in blood composition(Increased coagulability ):-
a-Increase number of blood elements.
-Increase platelets so become more sticky and agglutinate in small masses and adhere to vascular endothelium.
-Increase WBCs and RBCs increase viscosity of blood and stasis.
b-Biochemical changes that cause systemic activation of the cloting system.

"VIR chow"

Vascular trauma
Increased coagulability
Reduced blood flow (stasis)

Dr Ibrahim

Return to other triads here.

Friday, January 22, 2010

- Grades in medicine.

Grades in medicine 

In many branches of medicine we meet what is called "grades" this grades were put to classify certain conditions. Here I will put the grades what i had found as they meet me in books in simple way......... so you can share us.
Dr Ibrahim