The Shift from DUB to AUB-O Terminology
For decades, "dysfunctional uterine bleeding" (DUB) referred to abnormal uterine bleeding (AUB) without a structural cause. The current PALM-COEIN classification system uses AUB-O for abnormal uterine bleeding due to ovulatory dysfunction, which aligns with the historical definition of DUB.
Individualizing the Drug of Choice
Determining the most suitable "drug of choice" for DUB requires a personalized approach. Factors include the patient's age, desire for future fertility, need for contraception, bleeding severity and timing, and existing health conditions.
First-Line Medical Treatments for Chronic AUB
Long-term management of heavy menstrual bleeding without underlying structural issues typically begins with medical therapies.
The Levonorgestrel-Releasing Intrauterine System (LNG-IUS)
The LNG-IUS (e.g., Mirena) is a highly effective long-term treatment for heavy menstrual bleeding, significantly reducing blood loss. It works by releasing levonorgestrel directly into the uterus, thinning the lining and reducing menstrual flow. Advantages include long-term effectiveness, reliable contraception, and preservation of fertility. Potential drawbacks include initial irregular bleeding and possible progestogenic side effects.
Combined Oral Contraceptives (COCs)
COCs, containing estrogen and progestin, are a common choice, particularly for those needing contraception or regulating anovulatory cycles. COCs stabilize the uterine lining and establish predictable bleeding patterns, reducing blood flow. Benefits include cycle regulation, reduced menstrual flow and cramps, and effective contraception. Risks include an increased chance of blood clots, making them unsuitable for some individuals, and potential side effects like nausea.
Non-Hormonal Options
For individuals who prefer to avoid hormones or are planning pregnancy, non-hormonal treatments are available.
- Tranexamic Acid (TXA): This antifibrinolytic medication aids blood clotting and is used during heavy bleeding days. It does not provide contraception and preserves fertility but requires caution in those with a history of blood clots.
- Nonsteroidal Anti-inflammatory Drugs (NSAIDs): Medications like ibuprofen can reduce blood loss and menstrual cramps by inhibiting prostaglandins. NSAIDs are generally less effective for reducing bleeding compared to TXA or the LNG-IUS.
Medical Treatment Comparison Table
Detailed information regarding treatment options including LNG-IUS, Combined Oral Contraceptives, Tranexamic Acid, NSAIDs, and Oral Progestins, their effectiveness, advantages, disadvantages, and target patient can be found at {Link: Dr.Oracle https://www.droracle.ai/articles/123128/what-oral-contraceptives-to-use-in-dub-in-adolescent}.
Managing Acute, Severe DUB
Severe, sudden bleeding requires immediate management. This can involve high-dose combined oral contraceptives or oral progestins. Intravenous conjugated estrogen is an option for hospitalized, stable patients. Non-hormonal treatments like tranexamic acid can also be used in acute situations.
The Role of Surgical Intervention
Surgery is typically considered when medical treatments are ineffective, not suitable, or for those seeking a permanent solution. Endometrial ablation, which destroys the uterine lining, is an option but not recommended for those wanting future pregnancies. Hysterectomy, the removal of the uterus, is a definitive treatment reserved for severe cases where other options have failed and fertility is not desired.
Conclusion
There is no single drug of choice for DUB; instead, treatment is tailored to the individual's needs and preferences. Options range from highly effective hormonal therapies like the LNG-IUS and COCs to non-hormonal choices such as tranexamic acid and NSAIDs. Consulting a healthcare provider is crucial to identify the cause of heavy or irregular bleeding and establish a personalized management plan. For more detailed information, resources like the ACOG guidelines on abnormal uterine bleeding are available.