Overview
Gardnerella vaginitis, also known as bacterial vaginosis, is characterized by an imbalance in vaginal flora leading to overgrowth of Gardnerella vaginalis and associated symptoms such as vaginal discharge and odor 1.Diagnosis
Key Diagnostic Criteria: Presence of clue cells on microscopy, characteristic "fishy" vaginal odor, and a pH > 4.5 1.
Recommended Tests: Vaginal fluid microscopy for clue cells, Gram stain, and culture for Gardnerella vaginalis 1.
Grading: Amsel criteria (presence of three out of four: thin homogenous discharge, positive whiff test, clue cells, pH > 4.5) can confirm diagnosis 1.Management
First-Line Treatment: Oral metronidazole (2g as a single dose or 400mg twice daily for 7 days) or clindamycin (300mg twice daily for 7 days) 1.
Adjunctive Treatments: No specific adjunctive treatments mentioned; focus on eradication of G. vaginalis 1.Special Populations
Pregnancy: Metronidazole is generally considered safe during pregnancy; consult guidelines for specific dosing 1.
Comorbidities: No specific guidance provided for other comorbidities; treatment focuses on G. vaginalis eradication 1.Key Recommendations
Use Amsel criteria for diagnosing Gardnerella vaginitis (Evidence: Moderate 1).
Prescribe oral metronidazole (2g single dose or 400mg twice daily for 7 days) as first-line therapy (Evidence: Moderate 1).
Consider clindamycin (300mg twice daily for 7 days) as an alternative first-line treatment (Evidence: Moderate 1).References
1 Iavazzo C, Vogiatzi C, Falagas ME. A retrospective analysis of isolates from patients with vaginitis in a private Greek obstetric/gynecological hospital (2003-2006). Medical science monitor : international medical journal of experimental and clinical research 2008. link
2 Peacocke M, Djurkinak E, Thys-Jacobs S. Treatment of desquamative inflammatory vaginitis with vitamin D: a case report. Cutis 2008. link
3 Hurley R, De Louvois J. Candida vaginitis. Postgraduate medical journal 1979. link