Angioneurotic Edema

Angioneurotic Edema -A general term applied to the development of acute edema in the subcutaneous or submucous tissues.-Anesthetic help may be sought during an attack, when edema of the lips, tongue, or larynx may cause respiratory problems. Causes: -Angioedema may be secondary to the release of histamine, or many other vasoactive substances such as bradykinins, prostaglandins,...

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Acquired C1 Esterase Inhibitor Deficiency

Acquired C1 Esterase Inhibitor Deficiency -This may be a familial or, more rarely, an acquired disorder involving the complement system.-The acquired form is mostly associated with a B-lymphocyte malignancy, and antibodies have been detected against abnormal immunoglobulins present on the malignant B-cells. The reaction between the two causes C1 activation, which in...

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Ebstein’s Anomaly

Ebstein’s Anomaly -A rare congenital cardiac abnormality. -The septal and posterior cusps of the tricuspid valve are displaced downwards and are elongated, such that a varying amount of the right ventricle effectively forms part of the atrium. Its wall is thin and it contracts poorly. The remaining functional part of the right ventricle is therefore small. -The foramen...

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