hypogonadism Flashcards
functional hypogonadism
no organic pathology, potentially reversible
examples of functional hypogonadism
-opioids, malnutrition, severe acute/chronic disease, anabolic steroids, HIV, late-onset (AKA age-related, adult onset) hypogonadism-associated with obesity
organic hypogonadism
also known as classic hypogonadism; defined pathology, usually irreversible (exceptions : microprolactinoma, Cushing’s)
men with hypogonadism=
signs and symptoms of testosterone deficiency and unequivocally and consistently low serum total (or free*) testosterone; exception men with Klinefelter’s
when do you treat hypogonadism for Klinefelter’s
may treat when LH is elevated even if testosterone is in the reference range
late onset functional hypogonadism
1.Middle-age and older man
2. Coexistence of androgen-deficiency like features and low serum testosterone
3. Absence of both intrinsic structural gonadal axis pathology and specific diseases that suppress gonadal axis
diagnosis of functional hypogonadism in aging men
- symptoms and signs suggestive of hypogonadism
- Low serum total testosterone in fasting morning samples x2
- Exclusion of organic causes for gonadal axis dysfunction
symptoms and signs suggestive of hypogonadism
Specific symptoms:
-reduced libido
-decreased spontaneous erections
-erectile dysfunction
Less specific symptoms
-decreased energy
-decreased physical strength
-decreased motivation
-low mood
-decreased concentration
-hot flushes
Less specific signs
-loss of body/facial hair
-decreased testicular volume
-increased body fat/reduced muscle mass
-osteoporosis/low bone density
-central obesity
treatment of functional hypogonadism
1.Address potentially reversible causes
-weight loss in secondary hypogonadism
-discontinuation of opioids, anabolic steroids
-resolution of medical illness
2. Testosterone supplementation therapy in selected cases
testosterone formulation
1.oral
2.buccal (discontinued in the US)
3.Intranasal
4.IM
5.SubQ (injection and implantation)
6.Transdermal (gel
treatment of hypogonadotropic hypogonadism in men desiring fertility
-gonadotropins: hcg (+/- hMG)
-Clomiphene (must have preserved pituitary)