- Carpal tunnel syndrome.

Carpal tunnel syndrome 

*Def:- is a medical condition in which the median nerve is compressed inside the flexor retinaculum leading to paresthesias, numbness and muscle weakness in the hand.

*Causes:-

Due to fibrosis,fluid accumulation,soft tissue or bone hypertrophy which my be due to:-

"MEDIAN TRAP"(1)

Myxoedema
Edema
Diabetes mellitus,Drugs(e.g Oral contraceptive pills)
Idiopathic
Acromegaly
Neoplasm 

Trauma,Typists(Occuptional).
Rheumatoid arthritis
Amyloidosis
Pregnancy

-Brown-Séquard syndrome.

Brown-Séquard syndrome.
(Hemisection of spinal cord.)

*Aetiology:-
lesion in one side of the spinal cord as:-

• Stab wound.
• Disc prolapse.
• D.S.
• Tumor.
  
  

- Horner's syndrome.

Horner's syndrome

*Def:-

It is a clinical syndrome caused by damage to the sympathetic nerve supply to head and neck.

*synonymes:-

• Bernard-Horner syndrome
• oculosympathetic palsy.

*Causes:-

Due to lesion or compression of one side of the cervical or thoracic sympathetic chain which generates symptoms on the ipsilateral (same side as lesion) side of the body:-

-Toxic Causes of respiratory Failure.

Toxic Causes of respiratory Failure

1-Central:-

• Alcohol
• Barbiturate
• Opiate

2-Peripheral:-

A-Airway obstruction:-

• Falling back of the tongue.
• Vomitus.
• Excessive Secretions e.g Organophosphurus,carbamate.
• Oedema of the air way e.g Irritant fumes,Chlorine gas.
• Laryngeal spasm (Cyanide).
• Pneumonia(Hydrocarbon aspiration).
• Bronchospasm(Organophosphurus).
• Pulmonray
• oedema(Organo-phosphurus).

b-Paralysis of respiratory muscles:-

• Botulinum toxins.
• Snake bite.
• post-convulsion muscle exhaust.
• Organophosphurus.

C-Neuromuscular blocker:-

Physostigmine,Neostigmine.

Dr Ibrahim