Exam 3 lecture 6 Flashcards
define ED
inability to maintain erection sufficient for penetration to permit satisfactory sex
decreased libido
decreased sexual drive or desire
increased libido
precocious puberty; inappropriate and excessive sexual drive or desire
delayed ejaculation
aka “dry sex”; ejaculation is delayed or absent
retrograde ejaculation
ejaculate passes retrograde into the bladder instead of toward the anterior urethra (antegrade) & out of the penis
infertility
insufficient # of sperm, abnormal morphology or have inadequate motility & fail to fertilize the ovum
psychogenic cause of ED
- not as receptive to sexual stimuli
- age-related decline in arousability
- situational: partner related, performance related
- psychological distress
organic cause of ED
- neurogenic:(innervation issue- stroke, dimentia, tumor, DM, chronic ETOH)
- vascular: (impaired blood flow)- PVD, HTN, trauma, atherosclerosis
- hormonal: decr. test, hyperprolactinemia, hypothyroidism, hyperthyroidism
- medication induced
medications that can cause ED
anticholinergics, antidepresssants/antipsycotics, DA antagonists, estrogens/antiandrogens, CNS depressants, HTN drugs, other (cigarettes & alcohol)
international index of erectile function (IIEF)
pt questionare to objectively measure symptoms.
- includes: erectile function, orgasmic function, sexual desire, intercourse satisfaction, overall satisfaction
- classifies: severe- no ED
pharmacologic therapies to treat iodiopathic ED
- PDE5 inhibitors
- synthetic prostaglandin E1 analog
first line therapy for management of ED
PDE5 inhibitors
Pros of PDE5 inhibitors
- effectivness, route of administration, low side effects, discreet
PDE5 inhibitor MOA
- blocks PDE5 -> NO breakdown of cGMP-> NO increase in Ca-> smooth muscle RELAXATION-> incr. blood flow-> erection prolonged
dutumenscence
return of penis to relaxed state
PDE5 selective
-genital tissue, tracheal smooth muscle, platelets- bleeding
PDE6 selective
(Sildenafl»vardenafil)
- photoreceptors in the retina- incr. sensitivity to light, blurred vision, loss of blue-green color discrimination