A Simple Guide to Menorrhagia2(Excessive Menstrual Bleeding)

A Simple Guide to Menorrhagia2(Excessive Menstrual Bleeding)
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What is a Menorrhagia?
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Menorrhagia is a symptom defined as heavy, prolonged and/or irregular menstruation .

What are the causes of Menorrhagia?
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1.Physiological(hormonal): most common
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Excessive menstrual bleeding occurs when no ovulation takes place in a menstrual cycle with resultant excess oestrogen stimulation of the endometrium that results in the shedding of the thickened uterine lining and heavy bleeding when the oestrogen drops.

A defective persistent corpus luteum which results from an abnormal ovulation can also cause the shedding of the nedometrium for a longer period resulting in prolonged bleeding.

Other factors that may make heavy menstrual bleeding are:
2.Uterine Pathology:
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polyps,
fibroids
endometriosis
infection
carcinoma

3.Systemic Diseases:
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Bleeding diseases
Hypothyoidism
liver disease
Pelvic inflammatory Disease(PID)
Polycystic Ovarian syndrome(PCOS)

4.Medical causes:
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anticoagulants which are preventing clotting of blood
intrauterine device for contraception

How to establish a diagnosis of Menorrhagia?
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History:
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Menstrual history:
cycle length, number of bleeding days, degree of blood loss(number of pads used per day), presence of blood clots, dysmenorrhea

Contraception:
use of IUD
contraceptive pills

Symptoms suggesting underlying pathology:
Metabolic disorders:
symptoms of hypothyroidism
symptoms of polycystic ovarian syndrome

Bleeding disorders:
easy bruising
anticoagulants

Pelvic inflammatory Disease:
pelvic pain especially during intercourse
vaginal discharge
dysmenorrhea

Endometriosis:
pelvic pain
dysmenorrhea

Physical Examination:
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Signs of underlying diseases:
bruising
hypothyroid features
pallour(anaemia)
PCOS features(hirsutism,acne,overweight)

Abdominal examination:
tenderness,
palpable uterine or ovarian masses

Pelvic examination:
vulval and vaginal examination
bimanual palpation for masses
cervical smear

Investigation:
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Full blood count including hemoglobin(to exclude anemia from loss of blood) and platelets(low platelets can cause bleeding)

Transvaginal ultrasound to exclude uterine fibroids and polyps -postmenstrual scans is best when the endometrium is at its thinest.

Endometrial hysteroscopy and biopsy in women over 40 to exclude uterine cancer

What is the Treatment of Menorrhagia?
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Medications:
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1.Tranexamic acid- oral antifibrinolytic, given only when there is heavy bleeding

2.Combined oral contraceptives - prevent proliferation of the endometrium, reduces blood flow. Side effects are fluid retention, nausea, headache,deep vein thrombosis, mood changes, breast tenderness

3.oral progesterone - also prevent proliferation of the endometrium-usually less side effects bloating, headache, mood changes, breast tenderness

4. Injected progesterone -also prevent proliferation of the endometrium -similar side effects as oral progesterone. One additional side effect is the possibility of bone density loss. Evaluation of bone density should be done.

5. Levonorgestrel-releasing intrauterine system(LNG-IUS)
-also prevent proliferation of the endometrium
-side effects includes irregular bleeding up to 6 month, amenorrhea(no menses),
breast tenderness, and headache.

Surgery
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1.Endometrial ablation
may be done only
a.if medications has failed
b.if no desire to coceive
c.if the uterus is normal

Usually involve the removal of the endometrium through the cervical opening.
There are forms of endometrial ablation:
a.First generation:
hysteroscopy with general anaesthesia
-Rollerball ablation
-Transcervical resection of the endometrium

b.Second Generation:
non-hysteroscopy, no general anaethesia, day surgery,fast recovery
-Impedance-controlled bipolar radiofrequency ablation
-balloon thermal ablation
-microwave ablation
-free fluid thermal ablation

2. Hysterectomy
used only as a last resort in treatment of menorrhagia
if other treatment are contraindicated
there is a desire for amenorrhea
there is no desire to retain uterus and fertility

Treatment of Underlying causes:
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hypothyroidism with thyroxine tablets

intrauterine device removal

reduce anticoagulant treatment if possible

treat any bleeding disease with platelets or blood factor deficient infusion

treatment of endometriosis,

antibiotic treatment of pelvic inflammatory idsease

treatment of uterine carcinoma

surgical removal of fibroids and polyps