Repro pathophys: Aging, Menopause Flashcards

1
Q

physiology menopause

A
  1. follicular decline
    - d/t ovulation and *apoptosis of non ovulated follicles, ovarian reserve undetectable by ~50 y/o
    - apoptosis of oocytes accelerates ~35 y/o (~25000 starting point at this age)
  2. AMH decline
    - AMH is produced by granulosa cells; no follicle = no granulosa cells = no AMH
    - undetectably ~5 yr before menopause
    - – irregular cycles begin around this time
    - AMH levels predictive of ovarian reserve
  3. estradiol (E2) decline
    - E2 is produced by dominant follicle; no ovulation/dominant follicle = no estrogen from ovary
    - still have estrogen formed at peripheral fat (and other sites) from androgen conversion
    - – aromatase inhibitors used in breast cancer treatment inhibit this process = even lower estrogen
  4. FSH increases
    - d/t ovarian failure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

dx menopause

A

clinical: cessation of menses for 12 mo at appropriate age (~48-51) or with no other identifiable cause
surgical: d/t bilateral oophorectomy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

stages of menopause

A
  • early perimenopause

- middle perimenopause

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

early perimenopause

A
  • 2-8 yr pre-end of menses
  • shorter follicular phase
  • higher FSH

sx:

  • short-to-normal cycle lengths
  • hot flashes
  • interrupted sleep
  • breast tenderness
  • may be asymptomatic (aside from cycle changes)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

middle perimenopause

A
  • variable pre-menopause
  • unpredictable cycle pattern
  • some ovulatory, some anovulatory cycles
  • during anovulatory, estrogen rises and falls w/o progesterone
  • FSH even higher
sx::
irregular periods
- short cycles w/ mixed amenorrhea
vasomotor:
- hot flashes
- interrupted sleep
- breast tenderness
- dysphoric mood
- depression
- mild memory problems
GU atrophy -- worsens over time
- dyspareunia (pain during sex)
- atrophic vaginitis
- dysuria
- urinary urgency/incontinence
- may be asymptomatic (aside from cycle changes)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

late perimenopause

A
  • first year post-menopause (FMP)
  • FSH high
  • same sx as middle perimenopause
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

post menopause

A
  • 1+ yr post-FMP

- sx improve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

indications for hormone tx menopause

A
  • osteoporosis/frax risk
  • symptomatic menopause

otherwise not indicated

  • strokes, blood clots, breast cancer increase (cancels out any benefit related to heart disease or osteoporosis, except when high risk)
  • does not improve well-being unless sx
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

epidemiology menopause sx

A

more likely, longer in

  • smokers
  • black
  • latina
  • high BMI
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

hot flashes/vasomotor sx mx

A
  • abrupt drop in sex steroids e.g. menopause, GnRH AG/aNTagonists
  • pituitary insufficiency e.g. hypophysectomy, primary insufficiency
  • can also occur in men experiencing drop in sex steroids e.g. prostate cancer tx

mx:

  • estrogen causes inhibition of thermoregulatory center of hypothalamus
  • estrogen removal increases serotonin, 5-HT sensitivity in hypothalamus
  • others
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

vasomotor menopause sx primary tx

A

tx:

  • hormone therapy ~80-90%
  • oral, transdermal, vaginal
  • estrogen + progestin
  • progestin essential to prevent uterine cancer if uterus is present (frequency of hyperplasia ~35% otherwise)
  • note that there is an increase in breast cancer in estrogen + progestin vs estrogen only, but this is outweighed by risk of uterine cancer in general (obvious exceptions)
  • lowest dose for shortest period of time possible

c/i:

  • hx breast cancer
  • CHD
  • VTE/stroke/TIA
  • liver disease
  • unexplained vaginal bleeding
  • endometrial cancer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

vasomotor menopause sx alternate tx

A
  • gaba
  • SSRIs
  • SNRIs
  • clonidine
  • general healthy lifestyle choices (reduced smoking, drinking, diet, exercise)

complementary: similar to placebo, which is 25-50% reduction
- dong quai
- red clover
- black cohosh
- yam progesterone
- ginseng
- acu

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

surgical menopause sx tx in transmen

A

research limited, case studies show incorporation of transdermal estrogen in addition to testosterone did not affect masculinization

as w/ physiologic menopause, may be asymptomatic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

vulvar/vaginal atrophy sx, mx

A

sx:

  • burning
  • dyspareunia (pain during sex)
  • UTI
  • itching

*chronic, requires lifelong tx

mx:

  • reduced estradiol –> reduction in superficial cells
  • increase in parabasal cells
  • increased vaginal pH (acid –> base)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

vulvar/vaginal atrophy tx

A
  • local estrogen

- note recent RTC show that systemic estrogen not helpful

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

“non-genital” h&p sexual dysfunction in F

A
  • pt description of problem, OLDCAARTS
  • systemic disease ROS
  • disabilities
  • body image
  • stress, fatigue, mood
  • intimacy, partner effects
  • sexual stimulation
  • how partner(s) is/are reacting
  • others vs self-stim
  • penetration vs toys vs oral, manual
  • hx abuse
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

“genital” h&p sexual dysfunction in F

A
  • gyn sx
  • dryness, discharge
  • bleeding
  • pain
  • itching, burning
  • STI risk

pelvic exam

  • external
  • introitus
  • internal
  • bimanual
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

sexual dysfunction tx in F

A
  • treat identifiable disorders
  • psychological (if applicable, for causes or effects)
  • drugs overall unhelpful unless identifiable cause incl gyn condition, systemic, drug side fx
  • d/c offending drugs if possible

NOT helpful:

  • sildenafil, except +SSRI
  • systemic estrogen
  • yohimbine
  • DHEA

minimal benefit:

  • testosterone
  • flibanserin
  • bremelanotide
  • bupropion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

nerves involved in sexual response F

A

autonomic

  • *parasympathetic, pelvic splanchnic
  • – inferior hypogastric S2,3,4
  • some symp, sacral splanchnic
  • – lower T and upper L

motor/sensory
- pudendal nerve S2,3,4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

drugs associated with reduced libido

A
SSRIs
nicotine
chronic alcohol
opioids
OCPs (mixed data)
benzos
antipsychotics
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

health conditions associated with reduced libido

A
HTN, possibly tx related
MS
PD
pain
CKD
hypER-T4
hypER-prolactin
DM (mixed data)
cancer, post-cancer
depression
anxiety (may also favor increased libido)

RTC show testosterone levels not related but exogenous may increase desire slightly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

dysparuneia ddx

A

superficial:

  • vestibulodynia
  • vulvodynia
  • chronic vulvar dermatoses
  • condylomas
  • derm

deep:

  • endometriosis
  • pelvic congestion syx
  • interstitial cystitis
  • uterine retroversion
  • uterine leiomyomas
  • adenomyosis
  • PID
  • pelvic adhesions
  • ovarian remnant syx
  • IBS
  • hx sexual abuse
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

most significant predictor of sexual activity in older women

A

available partner

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

bartholins gland enlargement

A

ddx abcess vs cyst
rarely: benign or malignant tumor (carcinoma)

  • dilation d/t duct obstruction ± infection
  • abscess more common than cyst
  • common in young pre-menopause and peaks around menopause
  • nk risk fx
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

bartholins gland cyst

A

clinical:

  • unilateral enlargement visible and palpable at 4 or 8 o’clock of vestibule
  • 1-3 cm average
  • usually painless

tx:

  • watch and wait, small asymptomatic
  • warm compress
  • analgesis
  • if larger/symptomatic, I&D or word catheter
  • if persistent:
    • marsupialization
    • excision of entire cyst
    • consider biopsy, malignancy (esp in older ppl)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

barholins gland abscess

A
clinical:
- soft, painful mass
- difficulty walking or sitting
- 3-6 cm average
fluctuant, warm ± erythema

path:

  • usually E. coli
  • MRSA, strep also possible

tx:

  • I&D
  • culture
  • word catheter
  • abx
  • pain
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

vulvovaginal candidiasis

A

sx:

  • itching
  • thick, white, cheesy discharge

exam:

  • labial erythema
  • edema
  • white discharge
  • normal ~4.5 pH
  • hyphae on wet mount

path:
- usually Candida albicans

tx:

  • azoles
  • oral: fluconazole 150mg x1
  • vaginal: clotri-, mico-, terconazole

don’t fall into trap of presumptive dx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

vulvar lichen sclerosus

A
  • derm
  • benign but can lead to vulvar neoplasm

sx:

  • vulvar itching, pain
    • intense, disrupts sleep
  • dyspareunia
  • ± perianal involvement

exam:

  • white, thinned, crinkled epithelium
  • labia majora and minora involvement
  • ± perianal involvement - hourglass configuration
  • loss of skin architecture over time
  • ± thickening over time
  • majora/minora fusion
  • narrowing of introitus

dx:

  • vulvar punch biopsy
  • exam

mx:

  • epithelia thinning ± thickening
  • inflammation
  • associated w/ low estrogen
  • genetics, autoimmunity, local factors, hormonal factors …

epi:

  • peaks pre-pubertal and peri/post menopausal
  • rising incidence

tx:

  • topical steroids BID x 1 month –> 2ce weekly maintenance tx
  • minimize irritants
  • break itch/scratch cycle
  • petrolatum
  • yearly f/u one controlled
  • watch for malignancy
  • hormonal therapy NOT helpful
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

vulvar contact dermatitis

A
  • irritant or allergic
  • allergic more severe, vesicular

sx:

  • burning
  • stinging
  • swelling
  • pain
  • pruritus

exam:

  • erythema
  • edema
  • thickening
  • hypOpigmentation

common irritants:

  • scented soaps and detergents
  • iodine
  • pads
  • wipes
  • bodily secretions
  • spermicides
  • deodorants, perfumes

tx:

  • remove irritant
  • break itch/scratch cycle
  • short course topical steroids
  • topical petrolatum
  • soon soaks
  • cold packs
  • avoid tight clothing and friction

breaking itch/scratch cycle:

  • education
  • cutting fingernails
  • wearing soft gloves, underwear at night to avoid inadvertent scratching
  • topical petrolatum
  • pressure vs scratching when itchy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

vulvar itching ddx

A

most common:

  • candidiasis
  • contact dermatitis

can’t miss:

  • lichen sclerosus, risk of carcinoma if untreated
  • squamous cell carcinoma
  • melanoma
  • vulvar biopsy indicated if pigmented lesions, masses, raised, ulcerated, eroded, recurrent

also:

  • psoriasis
  • atopic dermatitis
  • hidrandenitis supperativa
  • infection
  • lichen simplex chronicus
  • lichen planus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

tunica albuginea

A

surrounds corpora cavernosa

provides rigidity for erection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

penile fracture

A

disruption of tunica albuginea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

artery of tumescence

A

cavernous artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

main arterial source to penis

A

internal pudendal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

subtunical venous plexus

A

between tunica albuginea and sinusoids

collapsed during erection to maintain rigidity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

nerves of erection

A

cavernous nerves
S2,3,4 (keep your penis off the floor…) parasympathetics (erection)
T11,12, L1,2 sympathetics (emission)
S2,3,4 sensory/motor (ejaculation)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

cavernous nerves and prostate

A

posterolateral

spared during nerve-sparing prostatectomy (to preserve erection)

38
Q

psychogenic and reflexogenic erection

A

psychogenic

  • non-genital stimuli
  • S2,3,4 parasympathetic
  • affected by stress/anxiety preventing erection

reflexogenic

  • genital stimuli
  • S2,3,4
  • preserved in upper spinal cord injury, though may have incomplete sensation
39
Q

physiological events of erection

A
  • dilation of arterioles via relaxation of smooth muscle, increased blood flow (*nitric oxide)
  • trapping of blood by expanding sinusoids
  • compression of subtunical venous plexuses, less venous outflow
40
Q

nitric oxide signalling in erection

A
  • parasympathetics release NO
  • NO –> guanylate cyclase activation = GTP –> cGMP
  • cGMP closes calcium channels
  • calcium sequestration –> relaxation of smooth muscle
41
Q

detumescence physiology

A
  • NE from sympathetics –> alpha adrenergic activation on smooth muscle
  • –> elevation of intracellular calcium
  • –> smooth muscle contraction
  • –> narrowing of arterioles
  • –> less engorgement –> less venule compression
42
Q

ED risk fx

A
  • age
  • DM
  • CVD
  • psych
  • smoking
  • hypogonadism
43
Q

types of ED

A

organic

  • arterial
  • cavernosa
  • neurologic
  • hormonal
  • systemic disease
  • drugs

psychogenic

  • stress, anxiety
  • strained relationship, lack of sexual interest in partner
  • depression
  • d/t excess sympathetic outflow

mixed
- ~90%

44
Q

neurogenic ED

A
  • ~10-20%
  • CNS or PNS pathology

CNS

  • damage to integration centers for sexual drive
  • – hippocampus, hypothalamus, preventricular nucleus
  • – CVA, epilepsy, encephalitis, trauma
  • dopaminergic pathway damage
  • – PD, AD, dementias
  • spinal cord injury

PNS

  • cavernous, pudendal nerve
  • DM, pelvic radiation, surgery, radical prostatectomy
  • in DM, endothelial damage limits NO synthase
45
Q

hormonal ED

A
  • hypOgonadism, testosterone
  • hypO or hypER thyroidism
  • hypERprolactinemia

testosterone:

  • generally d/t aging
  • T decreases ~.8%/yr starting mid-30s
  • sharp increase in ED when T <300
  • maintain nocturnal erection when T >200
  • testosterone & DHT relax penile artery and cavernous smooth muscle
  • T increases sexual drive

prolactin
- high prolactin –> GnRH suppression –> low T

46
Q

arteriogenic ED

A
  • generally part of systemic arterial disease
  • – htn, hld, dm, obesity, atherosclerosis, smoking
  • often an early symptom of systemic arterial disease, can tip off to impending worsening
  • – penile arteries smaller than coronary arteries
  • – signs of plaque formation show up sooner
  • – CVD screening in young men w/ organic ED
47
Q

venoocclusive ED

A
  • venous leak
  • outflow = cannot maintain erection
  • d/t insufficient smooth muscle relaxation, inadequate sinusoidal expansion, and insufficient compression of subtunical venules
48
Q

drug-induced ED

A

psychotropics

  • interfere w/ dopaminergic, serotonergic, non-adrenergic pathways
  • bupropion addition often effective for reversing ED associated w/ psychotropics
  • associated w/ SSRI, MAOI, TCA, antipsychotic usage

anti-hypertensives

  • beta blockers
  • ACE-I
  • ARBs
  • diuretics
  • Ca++ blockers

anti-androgens

  • 5 alpha reductase inhibitors
  • ADT for prostate cancer
  • opioids
  • ketoconazole
  • cimetidine
49
Q

ED hpi

A
  • morning erections?
  • masturbation?
  • all partners?
  • stressors?
  • new meds?
  • pelvic surgery?
  • systemic?
50
Q

ED exam

A
  • fibrosis?

- testicles firm/soft?

51
Q

ED labs

A

morning testosterone
TSH/T4
(prolactin)
(CVD workup if risk)

52
Q

ED tx

A
  • lifestyle
  • psychotherapy ± sex therapy
  • restore T >300
  • change offending meds where applicable/feasible
  • phosphodiesterase 5 inhibitors e.g. viagra
  • intracavernosal injection
  • MUSE (medicated urethral system for erection) = PGE1 pellet inserted to urethra, stimulates adenylyl cyclase
  • penile prosthesis (has pump bulb in scrotum, reservoir near bladder, cylinder in penis)
53
Q

PDE-5 inhibitors

A
  • prevent cGMP –> GMP (detumescence)
  • sexual stimulation still required to initiate erection

e. g.
- sildenafil (viagra)
- vardenafil (levity)
- tadalafil (cialis)
- avanafil (stendra)

c/i

  • NAION (non-arteritic anterior ischemic optic neuropathy)
  • angina during sex
  • nitro use

sfx

  • headache
  • nasal congestion
  • flushing
  • blue visual hue
  • diplopia, blurred vision d/t cr w/ PDE6
54
Q

intracavernosal injection

A
  • 1st line for PDE5i nonresponders
  • ~85% effective in that population

adv:

  • rapid onset
  • reduced systemic side effects
  • dependable efficacy

disadv:
- self injection into penis

e. g.
- alprostadil
- papaverine
- phentolamine

55
Q

peyronie’s disease

A
  • fibrous plaque –> curved erection
  • scar tissue of tunica albuguinea
  • any direction
  • pain for pt or partner, psych distress

risk fx:

  • penile trauma
  • connective tissue disorders e.g. dupuytren’s contracture, plantar fasciitis

tx:

  • penile traction
  • plaque excision and graft
  • plication
  • clostridium collagenase histolyticum injections
56
Q

FSH stims … to produce … (M)

A

Sertoli cells, testicle

nutrients for spermatogenesisyd

57
Q

LH stims … to produce … (M)

A

leydig cells, testicle

testosterone

58
Q

T bioavailability

A

when weakly bound or free

majority of T is bound to SHBG and is not bioavailable

59
Q

SHBG

A

sex hormone binding globulin
binds T, inactive

increases w/ (binding T):
aging
cirrhosis
hypER-T4

decreases w/ (freeing up T):
diabetes
obesity
steroid use

60
Q

DHT

A

dihydroxytestosterone
more potent metabolite of testosterone
T–>DHT via 5 alpha reductase

61
Q

estrogen (M)

A

T–>estrogen via aromatization

occurs in fat and Sertoli cells (the ones that make nutrients for the sperm)

62
Q

T circadian

A

diurnal
highest 7-9am
decreased variation b/w 6am and 2pm w/ age

63
Q

low T sx

A

sex:

  • low libido
  • decreased spontaneous erection
  • ED
  • diminished PDE5i response

general

  • low energy, fatigue
  • diminished sense of vitality, well-being
  • depressed mood
  • irritability
  • impaired cognition
  • reduced motivation

physical/metabolic

  • increased CVA risk
  • decreased bone mineral density, frax risk
  • decreased muscle mass/strength
  • increased body fat
  • gynecomastia
  • reduced testicular size and firmness
  • anemia
  • insulin resistance
64
Q

low T dx

A

T labs 7-9am
recheck if low
<300 ng/dL

then order
* LH
FSH
prolactin
CBC - Hgb and hct - T causes erethrocytosis, anemia can occur when low
if T >40, check PSA (T replacement will raise PSA)

65
Q

low T tx

A

exogenous T

c/i

  • PSA high
  • preserving spontaneous fertility
  • alternative tx if c/i: intranasal HRT, SERMS e.g. climid, hCG

safe re:

  • prostate cancer
  • adverse cardiac events
  • VTE

help w/

  • BMD
  • ED
  • libido
  • anemia
  • lean body mass
  • depressive sx

inconclusive

  • cognition
  • diabetes
  • energy/fatigue
  • lipids
  • QoL
66
Q

T insurance coverage

A

medicare- IM/SQ TRT

commercial- all

67
Q

T therapy w/ LE edema

A
  • avoid T cypionate

- use T enathate

68
Q

T therapy w/ high baseline Hgb/Hct or secondary polycythemia

A
  • avoid IM TRT or use lower dose
  • instead use topical, intranasal, or sub-Q T
  • note topical c/i if concerns about transferrence
  • serial phlebotomy also an option
69
Q

xyosted

A
  • sub-Q autoinjector T
  • less (usually no) pain on injection
  • less likely to develop polycythemia
  • covered by medicare
70
Q

T therapy w/ elevated estrogen

A
  • avoid high-dose IM b/c high peaks when converted by aromatase –> E can result in gynecomastia
  • common concern in transmen
  • may also/instead add an aromatase inhibitor
71
Q

long-acting T options

A
  • testopel pellets, placed in office q3-6 mo

- aveed, long-acting IM q10 wk

72
Q

topical T c/i

A
  • transference concerns (sticks on clothing, may get on other stuff in wash, touching people etc)
  • sensitive skin
73
Q

injectable T c/i

A
  • blood thinners/bleeding tendency
74
Q

GU innervation - symp

A
  • symp post
  • T10-L2
  • lower lumbar ± sacral splanchnics (≠ pelvic splanchnic, which are para)
  • inferior hypogastric plexus
75
Q

GU innervation - para

A
  • para pre
  • S2,3,4
  • pelvic splanchnic nerves (≠ sacral splanchnic, which are symp)
  • inferior hypogastric plexus
76
Q

GU innervation - somatic

A

somatic

  • pudendal nerve
  • passes b/w piriformis and ischiococcygeus
  • motor innervation to external sphincters of bladder and anus, erectile bodies
  • sensory innervation from external genitalia, perineal skin
  • S2,3,4
77
Q

onuf’s nucleus

A
  • distinct group of neurons
  • ventral anterior horn of sacral spinal cord
  • micturition, defecation, muscle contraction of orgasm
78
Q

micturition in paraplegia

A
  • still have reflex micturition
  • no motor control
  • since both are important, incomplete voiding is a concern
  • may need indwelling catheter
79
Q

neurotransmitters of micturition

A

NE

  • adrenergic alpha-1 on bladder neck and urethra
  • beta-3 on detrusor

ACh
- M2 and 3, detrusor

NO
- also involved in relaxation of smooth muscle

80
Q

CNS center of micturition

A

pontine micturition center (PMC)
pontine storage center (PSC)
spinobulbospinal reflexes

81
Q

stress urinary incontinence

A

SUI
involuntary urine loss d/t increased abdominal pressure (coughing, sneezing, laughing, exercising)
no bladder contraction
no urge to void
usually small amount of urine
often d/t weakened pelvic floor e.g. in setting of multiparous women (insufficient pressure closing urethra)
*increased risk of bladder, uterus, and rectal prolapse into vaginal area d/t weak pelvic floor

tx:

  • PT e.g. kegels
  • biofeedback kegels
  • timed voiding/bladder retraining
  • lifestyle e.g. caffeine, alcohol reduction
  • intravaginal urethral compression devise
  • occlusive devise
  • surgery

rx:
- little clinical benefit

82
Q

urge urinary incontinence

A
overactive bladder (OAB) - now and often
overactive detrusor - involuntary bladder contractions
variable amount of urine dep on sphincter fx

see also:

  • nocturia - waking multiple times at night to pee
  • enuresis: involuntary urination, esp in kids at night “bedwetting” - delayed maturation of micturition

tx:

  • mirabegron, beta3 adrenergic AGonist relaxes smooth muscle
  • oxybutynin - muscarinic AGonist
  • tolerodine - muscarinic AGonist with more “bladder selectivity” i.e. less effect on salivation
  • BoNTs
83
Q

functional urinary incontinence

A

d/t mental or physical disability
unwilling or unable to reach toilet when needed
e.g. PD, AD, severe depression

84
Q

distribution of types of UI

A

stress ~43%
urge ~21%
mixed ~35%
in otherwise (mostly) healthy population i.e. when functional UI does not apply

85
Q

pH of semen

A

alkaline
vagina is acidic so this protects sperm
seminal vesical alkalizes

86
Q

BPH

A
  • histology dx
  • proliferation of glandular epithelium and smooth muscle in transitional zone of prostate, which surrounds urethra
  • affects ~50% over 60 and ~80% over 80 d/t gradual enlargement of prostate after ~40 y/o

sx:

  • incomplete voiding d/t obstruction
  • urinary frequency
  • urgency
  • nocturia

tx::
alpha 1 receptor antagonists relax prostate and bladder neck smooth muscle
- e.g. *tamsulosin, other -zosins
- sfx: orthostatic hypotension, runny/stuffy nose, ejaculation problems

5-alpha reductase inhibitors –> prostatic atrophy by inhibiting T–>DHT

  • finasteride (5-alpha reductase type 2)
  • dutaseride (type 1 and 2), near complete suppression of serum DHT
  • sfx: low libido, ED, ejaculatory dysfunction, depression

PDE5 inhibitors promote smooth muscle relaxation (improves voiding and tx ED)
- tadalafil (cialis) preferred d/t longer t1/2

87
Q

ddx urinary retention

A
BPH (M)
diabetic neuropathy
urethral stricture
low spinal cord injury
pelvic prolapse (F)
MS
drugs

acute:

  • painful, palpable, percussable
  • unable to pass any urine

chronic:

  • nonpainful
  • palpable, percussable post-void
  • overflow incontinence
  • high post-void residual volume (US)
88
Q

drugs for urge incontinence

A

goal: relax overactive detruser
- muscarinic antagonists oxybutynin, tolterodine
- beta-3 adrenergic AGonist mirabegron

89
Q

drugs for stress incontinence

A

generally ineffective
kegels, biofeedback, etc.
possible surgery (pelvic floor reconstruction)

90
Q

drugs for functional incontinence

A

tx underlying disorder where possible
drugs that act directly on bladder don’t help b/c no organic dysfunction
catheters

91
Q

drugs for overflow incontinence

A

i. e. incomplete voiding, BPH
- tamsulosin - alpha-1 receptor agonist - relax smooth muscle in prostate and urethra
- finasteride, dutasteride - 5-alpha reductase inhibitors - suppress DHT, shrink prostate
- tadalafil (cialis) - PDE5 inhibitor - relaxes smooth muscle

92
Q

drug-induced urinary retention

A

sx:

  • incomplete voiding
  • frequent urination, small amounts
  • urinary hesitancy (difficulty starting flow)
  • slow urine stream
  • urgency without urination
  • feel need to urinate after urinating

offenders:

  • muscarinic ANTagonists:
  • – antipsychotics
  • – antidepressants
  • – anticholinergic respiratory
  • opioids
  • alpha adrenergic receptor AGonists
  • benzos
  • Ca++ channel ANTagonists
  • anesthetics