Superficial Fungal Infections (Perez) Flashcards

1
Q

Vulvovaginal candidiasis (VVC) most common pathogen

A

-Candida albicans

80-90%

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2
Q

VVC Risk Factors

A
  • Sexual factors
  • Contraceptive agents
  • Host factors (Pregnancy or diabetes)
  • Medications (abx or SGL2 inhibitors)
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3
Q

If VVC is asymptomatic do you treat?

A

-No ya dingus!

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4
Q

Definition of Uncomplicated VVC

A
  • Mild/mod signs/symptoms
  • Infrequent (< 3 episodes /year)
  • Immunocompetent
  • NOT pregnant
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5
Q

Treatment of uncomplicated VVC

A

-Usually an Azole

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6
Q

Definition of Complicated VVC

A
  • Immunocrompromised
  • Pts with uncontrolled diabetes
  • Pregnant patients
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7
Q

How to treat complicated VVC

A

-Azole antifungals

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8
Q

Recurrent VVC definition and treatment

A
  • > /= 4 episodes with in 12 months

- Treatment: put a maintenance Azole antifungal on board

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9
Q

Which fungi in VVC is most likely to have antifungal resistance

A
  • Candida glabrata
    1) higher prevalence in pts with diabetes
    2) higher cure rates when boric acid vaginal suppositories are used
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10
Q

Fluconazole

A
  • Convenient
  • Long half life (30hrs)
  • Renally eliminated
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11
Q

Boric Acid Supp.

A
  • OTC products available
  • Administer vaginally only
  • Oral administration is TOXIC
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12
Q

Non-pharm recommendations for VVC

A
Avoid: 
-Harsh soaps
-Constrictive clothing
-Don't use a douche 
Do this:
-Keep area clean and dry
-Cool baths to soothe skin
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13
Q

Treatment of Uncomplicated VVC

A
  • Clotrimazole (Gyne-Lotrimin)
  • Miconazole (Monistat)
  • Tioconazole (Vagistat)
  • Terconazole
  • Butoconazole (Gynazole)
  • Fluconazole (diflucan)
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14
Q

Treatment of Complicated VVC in pts with DM or immunocompromised

A
  • Oral fluconazole (Q72hrs for 2 to 3 doses)

- Topical azole antifungal (7-14 days)

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15
Q

Treatment of complicated VVC in pregnant pts

A
  • Topical clotrimazole
  • Topical Miconazole
  • Both have 7 day LOT
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16
Q

Treatment of recurrent VVC

A

1) Introduction
-Oral fluconazole
or
-Topical Azole antifungal
2) Maintenance
-Fluconazole 150mg weekly for 6mo

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17
Q

Treatment of Antifungal resistant VVC

A
  • Boric acid supp.
  • 1 supp. daily for 14 days
  • Followed by 1 supp twice weekly
18
Q

What is the most common pathogen in Oropharyngeal candidiasis (OPC)

A

-Candida albicans

19
Q

What are the most common opportunistic infections in HIV/AIDS

A
  • Oropharyngeal Candidiasis (OPC)

- Esophageal Candidiasis (EPC)

20
Q

Risk factors for OPC/EPC

A
  • Local
  • Systemic
  • Diabetes
  • Nutritional deficiencies
21
Q

Clinical Pearls for Clotrimazole troches

A
  • Doesn’t work well in people with dry mouth
  • Contains dextrose
  • Can cause tooth decay
22
Q

Clinical Pearls for Miconazole buccal tablets

A
  • Once daily admin (Dope)
  • Sugar free
  • Difficult to keep in place (bad)
  • Currently brand only (expensive?)
23
Q

Nystatin Suspension Clinical pearls

A
  • Unpleasant taste
  • High sucrose content
  • Tooth decay
  • Caution in pts with diabetes
24
Q

Itraconazole solution clinical pearls

A
  • Swish and swallow
  • Take on empty stomach
  • More expensive than fluconazole
25
Posaconazole (Noxafil)
- Shake before use (suspension) - Take with meal - No generic currently - More expensive than fluconazole
26
Voriconazole tablets
- Take on empty stomach - Visual disturbances/hallucinations - More expensive than fluconazole
27
IV Echinocandins (Micafungin, caspofungin, anidulafungin)
- Fever, headache - Infusion related reactions - Liver damage
28
IV amphotericin B Deoxycholate
- Fevers, chills - Nephrotoxicity - Electrolyte disturbances - Bone marrow suppression
29
Duration of therapy for OPC
-7 to 14 days
30
Initial treatment for mild OPC
1) Clotrimazole 2) Miconazole 3) Nystatin
31
Initial treatment for moderate to sever OPC
1) Fluconazole 2) Itraconazole 3) Posaconazole 4) Voriconazole
32
Duration of therapy for ECP
-14 to 21 days
33
Initial treatment for ECP
- Fluconazole - Micafungin - Capsofungin - Anidulafungin
34
Treatment of recurrent ECP
-Fluconazole
35
Most common pathogens in Dermatophyte infetions
- Trichophyton - Microsporum - Epidermophyton - Malassezia (Tinea versicolor)
36
Risk factors for Dermatophyte infections
- prolonged exposure to sweat or water - maceration - intertiginous folds - sharing personal belongings - close living quarters
37
Tinea Corporis (ringworm)
- More common in children - Treat with topical antifungal - Nonpharm: don't share towels, wash sheets and towels, change clothes ofter
38
Tinea Cruris (Jock itch)
- More common in males - Topical treatment is usually sufficient - Nonpharm: keep dry an avoid long exposure to moisture
39
Tinea Versicolor
- Topical treatment is usually adequate unless there is 1) extensive involvement 2) recurrent infections 3) topical therapy has failed
40
Tinea Pedis
- Topical treatment should suffice | - Nonpharm: disinfect footwear, avoid walking bear foot in public places, wear absorbent socks
41
Tinea Unguium (Onychomycosis-nails_
- first line treatment = Terbinafine | - systemic drug works better than topical in this case