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Vaginitis

Overview

Vulvovaginitis is a common condition for which women seek medical care accounting for approximately 10 million office visits every year. It is defined as symptoms that cause itching, irritation, burning and abnormal vaginal discharge. The three common causes of vaginal discharge in reproductive age group include: most common being Bacterial Vaginosis followed by Candida vulvovaginitis and Trichomoniasis.

Synopsis

Symptoms

Disease Symptoms Examination Findings
Discharge Dysuria Vaginal odor Dyspareunia Genital skin lesion Genital pruritus
Candida Vulvovaginitis ✔✔
  • Vulvar edema, fissures, excoriations
  • Thick curdy vaginal discharge
Bacterial Vaginosis
  • Fishy-odor from the vagina
  • Thin, white/gray homogeneous vaginal discharge
  • Lack of significant vulvovaginal inflammation
Trichomoniasis
  • Strawberry cervix: petechial haemorrhages on the ectocervix, specific to trichomoniasis
  • Frothy, mucopurulent, yellow-green or gray vaginal discharge
Atrophic Vaginitis ✔✔
  • Pale and dry vaginal epithelium
  • Increased friability of the epithelium with patchy erythema and petechiae
  • Sparsity of pubic hair, fusion of the labia minora, narrow and a shortened vagina

Diagnosis and Treatment

Disease Investigation Diagnostic Approach Treatment
pH Saline Wet mount preparation Gold Standard test
Candida Vulvovaginitis Normal Hyphae and pseudohyphae can be demonstrated Culture
  • In patients with normal pH and positive microscopy, culture is not neccessary and treatment can be initiated
  • In patients with normal pH and negative microscopy, culture for candida is done
  • Topical Azoles for uncomplicated infection
  • Oral Fluconazole one dose of 150mg for complicated infection
Bacterial Vaginosis >4.5 Clue cells are demonstrated Gram Stain to determine the relative concentration of lactobacilli, G. vaginalis, Prevotella, Porphyromonas, peptostreptococci and Mobiluncus

Amsel’s criteria: Presence of three out of four criteria is required to make the diagnosis of BV

  • Vaginal fluid pH >4.5
  • >20% of epithelial cells are “clue” cells (cells with unclear borders, dotted with bacteria)
  • Milky homogenous, adherent vaginal discharge
  • Positive “whiff” test, which is an amine or “fishy” odor noted after the addition of 10% potassium hydroxide
  • Correlation of the criteria and gram stain is performed to aid diagnosis
Metronidazole

500 mg orally twice a day for 7 days OR Metronidazole gel 0.75%, one full applicator (5 g) intravaginally, once a day for 5 days OR Clindamycin cream 2%, one full applicator (5 g) intravaginally at bedtime for 7 days

Trichomoniasis Normal
  • Motile Trichomonads
  • Positive Whiff test
Nucleic acid amplification test(NAAT)
  • NAAT is highly sensitive for the diagnosis of Trichomonas vaginalis.
  • Treatment is initiated after confirmation of the diagnosis
Metronidazole 2g or Tinidazole2g in a single dose
Atrophic Vaginitis Normal Vaginal smear cytology shows increased parabasal cells Leftward shift of the vaginal maturation index
  • Diagnosis requires the correlation of clinical presentation and vaginal cytology findings.
  • Other causes causing atrophic changes in the vagina should be ruled out.
  • Lubricants and moisturizers for mild symptoms
  • Topical or Oral estrogen therapy for moderate to severe symptoms