L12: Hyperemesis Gravidarum Flashcards
Def of Emesis gravidarum
- Vomiting that occurs mostly during early morning, usually appears at 6 weeks & disappears after 14 weeks & doesn’t affect the general condition of woman.
Def of Hyperemesis graviderum
- Severe vomiting during first 14 weeks affecting the general condition of woman
OR
- persistent vomiting after 14 weeks & before 20 weeks.
Incidence of Hyperemesis graviderum
1/500
Compare between Morning Sickness & Hyperemesis Gravidarum
Causes of Hyperemesis graviderum
Theories of Hyperemesis graviderum
- HCG Theory
- High HCG level stimulates CRTZ (this may explain high incidence in vesicular mole & multifetal pregnancy).
Theories of Hyperemesis graviderum
- Psychological & Emotional Theory
- May play role through stimulation of CRTZ (this may be evidenced by improvement of condition after hospitalization & isolation from stressful home environment).
Theories of Hyperemesis graviderum
- Allergic Theory
- Allergic reaction to pregnancy hormones (HCG, estrogen & progesterone
Theories of Hyperemesis graviderum
- Infection Theory
Infection è Helicobacter Pylori bacteria (gastritis) may play role.
Theories of Hyperemesis graviderum
- Nutritional Theory
Vitamins B1 & B6 deficiency.
Theories of Hyperemesis graviderum
- Thyroid Gland Activation Theory
May Play Role
Pathology of Hyperemesis graviderum
Hyperemesis graviderum
- Biochemical Disorders
Hyperemesis graviderum
- Biochemical Disorders (Electrolyte Changes)
↓↓ Na+ & Clˉ & ↑↑ blood urea.
Hyperemesis graviderum
- Biochemical Disorders (Metabolic Changes)
Hypoglycemia & ketoacidosis (ketone bodies).
Hyperemesis graviderum
- Biochemical Disorders (Circulatory Changes)
Hypovolemia & hemoconcentration
Hyperemesis graviderum
- Biochemical Disorders (Urinary Changes)
Oliguria, Ketonuria, proteinuria & ↑↑ urinary urea
Hyperemesis graviderum
- Organic Disorders
Hyperemesis graviderum
- Organic Disorders (Liver)
fatty degeneration
Hyperemesis graviderum
- Organic Disorders (Kidney)
Tubular & Gomerular degeneration