Saturday, June 12, 2010

Eating disorders- medical complications











Today we discussed the medical complications of eating disorders, which can be devastating and affect any system, with mortality as high as 10% in anorexia and 2% in bulemia. A few points:


Electrolyte/renal abnormalities
-Hypokalemia (may be from vomiting, diuretic abuse, laxative abuse)
-Metabolic alkalosis (volume depletion, diuretics)
-Hyponatremia (diuretics, polydipsia prior to weighings)
-Hypophosphatemia
-Hypomagnesemia
-Chronic kidney disease (may be contributed to by nephrocalcinosis, tubular dysfunction)

Cardiovascular
-Bradycardia (may or may not be secondary to electrolyte abnormalities)
-Cardiomyopathy (potentially reversible)
-Long QT
-Mitral valve prolapse

GI
-Parotic hypertrophy
-Decreased contractility
-Mallory-Weiss teats
-SMA syndrome
-Gallstones

Endocrine
-Amenorrhea
-'Sick euthyroid' syndrome
-Growth retardation
-Hypoglycemia

Skeletal
-Osteopenia/osteoporosis

Hematologic
-Marrow suppression

Neurologic
-Seizures
-Peripheral neuropathy

Dermatologic
-Lanugo hair
-Hair loss
-Yellow/orange skin- hypercarotenema
-Russell sign (callus over knuckles)
-Edema

Refeeding syndrome: When pts become rapidly "anabolic" after prolonged periods of starvation, severe electolyte abnormalities can develop and must be aggressively replaced.
-Hypophosphatemia
-Hypokalemia
-Hypoglycemia
-Edema

Link:
Click here for a NEJM review of anorexia
Click here for a case report of reversible severe cardiomyopathy from anorexia

1 comment:

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