Megaoesophagus Flashcards
1
Q
Pathophysiology
A
Chronic dilation and loss of muscle tone
Muscle cannot contract properly
Cannot actively transport food
Protective lung reflexes disrupted
Results in
- food/saliva accumulation
- regurgitation
- aspiration pneumonia
2
Q
General aetiology (4)
A
Idiopathic
Hereditary
Congenital
Acquired
3
Q
Congenital causes (2)
A
Incomplete oesophageal nerve development
Oesophageal vascular ring anomaly
4
Q
Acquired secondary to (4)
A
Myasthenia gravis
Addisons
Oesophageal stricture
Oesophageal obstruction
5
Q
Clinical signs (6)
A
Regurgitation Anorexia Weight loss Coughing Halitosis Excessive salivation
6
Q
Diagnosis (6)
A
Hx/cs/exam Bloods for underlying cause - ACTH stim. And lytes (k+:Na+) for addisons - antibody titre for MG Endoscopy Radiography + barium (tubed)
