Erectile Dysfunction

Question 1

arteries in the cavernosum are?

Answer 1

cavernosal artery

Question 2

what main artery supplies the pelvic structures?

Answer 2

internal iliac

Question 3

what main artery supplies penis

Answer 3

internal pudendal

Question 4

arteries of penis

Answer 4

dorsal artery

cavernosal arteries

Question 5

important vein for penis?

Answer 5

deep dorsal vein, and drains near prostate

Question 6

subtunical veins do what during erection?

Answer 6

compressed and stop drainage

Question 7

parasympathetic origin and exit?

Answer 7

brainstem with vagus

S2-4

Question 8

sympathetic origin?

Answer 8

thoracolumbar: T1-L1-2

Question 9

physiology of erections

Answer 9

psycho, emo, physical
neuro
arterial change
venous compression
structural

Question 10

vessels and muscles do what in erection?

Answer 10

trapping of blood in sinusoids via compression of subtunical venous plexus

contraction of ischiocavernous muscles

Question 11

erectile dysfunction prevalence?

Answer 11

50% of men aged 40-70

Question 12

risk factors for erectile dysfunction

Answer 12

psychiatric MEDS
CVD
genito-urinary
SES: lower socioeconomic
Chronic disease

Question 13

2 broad categories of erectile dysfunction?

Answer 13

psychogenic

organic

Question 14

causes of organic erectile dysfunction?

Answer 14

vascular
neurogenic (diabetes, iatrogenic)
anatomic
endocrinologic

Question 15

Neurogenic causes of erectile dysfunction?

Answer 15

central (MS, parkinson’s)
spinal cord

Peripheral
alcohol
diabetes

Question 16

3 causes of arteriogenic erectile dysfunction?

Answer 16

CVD
iatrogenic
pelvic trauma

Question 17

what drugs/substances cause erectile dysfunction?

Answer 17

smoking
alcohol
antihypertensives
psychiatric meds
androgen deprivations

Question 18

testosterone lab sample contains?

Answer 18

Free+total

SHBG/albumin

Question 19

treatment of erectile dysfunction?

Answer 19

treat any underlying CVD or other disease

try PDE5 inhibitors

Question 20

most common SFx with sildenafil?

Answer 20

headache, but if persist then headache is less

Question 21

PDE5 contraindications

Answer 21

nitrates (veno dilatation)

caution with alpha-blockers

Question 22

can you take antihypertensives with PDE5 inhibitors?

Answer 22

yes, safe.

Question 23

second line therapy for erectile dysfunction?

Answer 23

direct intracavernosum injections
penis pumps
intra cavernosum cylinders

Question 24

how many cavernosum vs. spongiosum?

Answer 24

2 cavernosum
1 spongiosum (urethra in it)