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Diagnosis of PCOS |
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Oligomenorrhea-amenorrhea and/anovulation |
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The menstrual cycle is categorized as irregular if |
Good practice point |
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1) Normal throughout the first year of menstruation |
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2) One to 3 years after menarche: less than 21 or more than 45 days |
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3) Three years from menarche until perimenopause: less than 21 days, greater than 45 days, or fewer than eight cycles yearly |
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4) More than a year following menarche: a duration of over 90 days for a single cycle |
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5) Primary amenorrhea occurring at an age greater than 15 years or if it has been more than 3 years following thelarche |
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The optimal timing for the assessment and diagnosis of PCOS in adolescents with irregular menstrual cycles should be determined by a discussion with the patient and their parents, taking into cultural and psychosocial aspects |
Good practice point |
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Adolescents displaying signs of PCOS but not meet the diagnostic criteria may be considered to have an elevated risk and should be reevaluated at or before they attain full reproductive maturity, which occurs 8 years following menarche |
Good practice point |
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Ovulatory dysfunction may still manifest even in individuals with regular menstrual cycles. To confirm anovulation, midluteal progesterone levels can be tested |
Good practice point |
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Hyperandrogenism (clinical and biochemical) |
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The assessment of biochemical hyperandrogenism in PCOS is done by measuring free or total testosterone levels. The free androgen index can be used to estimate free testosterone levels |
Strong recommendation |
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Androstenedione and dehydroepiandrosterone sulfate (DHEAS) examinations may be conducted if the testosterone levels are within the normal range. However, it has lower specificity and a decreased DHEAS associated with increasing age |
Strong recommendation |
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For the precise determination of total or free testosterone, it is necessary to employ chromatography-mass spectrometry/mass spectrometry and extraction/chromatography immunoassays. It is not recommended to utilize radiometric or enzyme-linked free testosterone assays due to their poor sensitivity, accuracy and precision |
Strong recommendation |
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In adults, the presence of hirsutism only should be regarded as a predictor of biochemical hyperandrogenism and PCOS. Without hirsutism, hair loss and acne are relatively poor biochemical indicators of hyperandrogenism |
Strong recommendation |
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Testing for biochemical hyperandrogenism is difficult in women using hormonal contraception. If a biochemical evaluation of hyperandrogenism is required, the test should be conducted after discontinuing treatment for a period of 3 months or more, and the patient should be given non-hormonal replacement therapy |
Good practice point |
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Biochemical assessment of hyperandrogenism is important to diagnose PCOS and the determination of the PCOS phenotype if clinical manifestations of hyperandrogenism (particularly hirsutism) are nonspecific or absent |
Good practice point |
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Repeated androgen measurements have a limited role in establishing the diagnosis of PCOS in adults |
Good practice point |
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Most adolescents achieve adult levels of androgen between the ages of 12 and 15 years old |
Good practice point |
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In cases where androgen levels are higher than laboratory standard values, it is necessary to explore alternative causes of hyperandrogenemia besides PCOS |
Good practice point |
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Polycystic ovary morphology |
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Transvaginal ultrasound (US) examination is the most accurate ultrasound examination to diagnose PCOS |
Good practice point |
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The findings of a transvaginal US indicative of PCOS are the presence of ≥20 follicles per ovary and/or ovarian volume ≥10 mL, or a follicle number per section ≥10, ensuring no corpus luteum, cyst, or dominant follicle |
Good practice point |
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Anti-müllerian hormone for PCOS diagnosis |
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Anti-müllerian hormone (AMH) levels can be used to identify PCOM in adults. This examination cannot be utilized as a standalone assessment and is not suggested for adolescents |
Strong recommendation |
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The evaluation of AMH levels should be carried out following the diagnostic algorithm, taking into consideration that AMH levels are not essential to diagnose PCOS in individuals with hyperandrogenism and irregular menstrual cycles |
Strong recommendation |
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AMH levels or ultrasonography can be utilized to determine PCOM. It is advisable to avoid conducting both tests to prevent overdiagnosis |
Good practice point |
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Healthcare professionals must be aware of factors that can influence AMH values, such as body mass index (BMI), age, menstrual cycle, use of hormonal contraception, and history of ovarian surgery |
Good practice point |
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Ferriman gallwey score |
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The clinical symptoms of hyperandrogenism can be assessed through history taking and physical examination. Acne, androgenic alopecia, and hirsutism are symptoms of hyperandrogenism |
Good practice point |
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Healthcare professionals are advised to |
Good practice point |
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1) Utilize the modified ferriman gallwey score along with a photographic atlas to evaluate hirsutism |
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2) Utilize the ludwig or olsen visual scale to evaluate hair loss in women |
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3) Recognize that cosmetic interventions may have already addressed the physical signs of hyperandrogenism |
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4) Assess the patient’s self-evaluation of their symptoms related to hyperandrogenism |
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5) Monitor for clinical hyperandrogenism during therapy |
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Insulin resistance examination |
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All women should undergo glycemic status examination during the diagnosis of PCOS |
Strong recommendation |
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Regardless of BMI and age, women with PCOS should be examined for impaired fasting glucose, impaired glucose tolerance, and type 2 diabetes |
Strong recommendation |
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The recommended examination is the oral glucose tolerance test (OGTT) using a 75-g glucose. If OGTT examination is not available, examination of fasting plasma glucose (FPG) and/or HbA1c may be examined. Nevertheless, both FPG and HbA1c examinations exhibit reduced accuracy |
Strong recommendation |
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Women who are seeking pregnancy or receiving infertility treatment should be offered the OGTT examination. If a preconception assessment is not conducted, the OGTT examination can be conducted during the initial antenatal visit and subsequently repeated between 24 and 28 weeks of gestation |
Strong recommendation |
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Women with preexisting diabetes are more likely to develop PCOS; hence, screening should be considered |
Good practice point |
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For the purpose of determining insulin resistance, the HOMA-IR assessment with a cutoff point greater than 2 or the Muharam score less than 10.1 can be utilized |
Good practice point |
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The pathophysiology of PCOS is related to insulin resistance. However, insulin tests are not recommended for routine care due to their limited clinical relevance |
Good practice point |
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Early detection of decreased quality of life and psychological problems |
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A compassionate approach is required while taking a patient’s medical history, and questionnaires can be utilized to evaluate the deterioration in quality of life |
Good practice point |
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Assessment of psychosexual disorders in women with PCOS could be examined by using several questionnaires, such as the female sexual function index and Arizona sexual experience scale |
Good practice point |
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Early diagnosis of eating disorders is essential due to the possible negative impact on lifestyle adjustment and dietary patterns advised in PCOS |
Good practice point |
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Risk of cardiovascular disease |
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Women diagnosed with PCOS have an increased risk of developing cardiovascular disease. Thus, cardiovascular risk factors should be assessed |
Strong recommendation |
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Irrespective of age or BMI, all women with PCOS require a lipid profile examination (triglycerides, cholesterol, LDL, and HDL) at diagnosis. Follow-up examinations are conducted depending on the overall risk of cardiovascular disease and the occurrence of hyperlipidemia |
Strong recommendation |
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Annual blood pressure measurements are recommended for women with PCOS, particularly during the planning of pregnancy or the course of fertility treatment |
Strong recommendation |
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Endometrial hyperplasia and cancer risk |
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Medical professionals must be aware of the fact that premenopausal women with PCOS are at a heightened risk of developing endometrial hyperplasia and cancer |
Strong recommendation |
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It is important to educate women with PCOS of their increased susceptibility to developing endometrial hyperplasia and cancer. Given the minimal overall risk, it is not recommended to do regular screening for endometrial cancer |
Good practice point |
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There are numerous factors that contribute to the elevated risk of endometrial hyperplasia and malignancy in women with PCOS, including prolonged and untreated amenorrhea, excessive body weight, type 2 diabetes, and constant endometrial thickening |
Good practice point |
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To prevent endometrial hyperplasia and cancer in PCOS women, it is essential to maintain a healthy weight, regulate the menstrual cycle, and adhere to regular progesterone therapy |
Good practice point |
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When significant endometrial thickness is observed, a biopsy with histological examination and withdrawal bleeding should be considered |
Good practice point |
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Non-pharmacological management |
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Nutritional interventions and dietary patterns |
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It is necessary to reduce the amount of calorie intake by 500-1,000 kcal/day, with a balanced nutritional composition and accompanied by an increase in fiber consumption |
Strong recommendation |
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Overweight women should aim for a 30% energy deficit, equivalent to a daily calorie intake of 500-750 kcal (1,200-1,500 kcal/day) while considering their energy requirements, degree of physical activity, and body weight |
Good practice point |
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To increase insulin sensitivity, individuals can consume small portions of food more frequently, accompanied by larger breakfast portions compared to dinner |
Weak recommendation |
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A low glycemic index diet can reduce BMI, increase insulin sensitivity, and improve irregular menstrual cycles |
Weak recommendation |
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Women with lean PCOS (BMI <23 kg/m2) are advised to increase their consumption of fruit and vegetables. Anti-inflammatory and antioxidant-rich diets like the Mediterranean diet may also be recommended |
Weak recommendation |
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The primary management for lean PCOS, particularly in adolescents, is the prevention of weight gain and the promotion of a healthy lifestyle |
Good practice point |
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Protein dietary recommendation |
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A high protein and low carbohydrate diet can significantly reduce body mass, visceral fat and insulin levels |
Strong recommendation |
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Diets high in protein can impact bone density and kidney function |
Strong recommendation |
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Fat dietary recommendation |
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Omega-3 consumption can reduce total cholesterol levels |
Strong recommendation |
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Polyunsaturated fat consumption can enhance lipid and hormone profiles, therefore diminishing the likelihood of developing cardiovascular disease |
Strong recommendation |
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Up to 30% of dietary intake should come from fatty acids comprising equal amounts of saturated, polyunsaturated, and monounsaturated fat |
Strong recommendation |
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Fiber dietary recommendation |
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A diet rich in fiber leads to decreased testosterone and DHEA levels |
Strong recommendation |
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A high-fiber diet can improve the symptoms of hirsutism |
Strong recommendation |
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Vitamin D |
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PCOS women with low vitamin D levels have greater HOMA-IR, total cholesterol, LDL cholesterol, hyperglycemia, CRP, triglycerides, and reduced HDL cholesterol |
Strong recommendation |
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Vitamin D preparations containing calcitriol (D3) are more effective than vitamin D2 preparations in increasing serum levels of 25-hydroxyvitamin D |
Strong recommendation |
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Vitamin D and calcium supplementation have been proven to improve the menstrual cycle, follicle maturation, and weight loss in PCOS |
Weak recommendation |
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Sunlight exposure and natural vitamin D consumption from fish oil have essential roles in vitamin D production |
Good practice point |
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Physical activity |
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Patients with PCOS should implement lifestyle changes to enhance their metabolic conditions, including lipid and anthropometric profiles, symptoms of hirsutism, and fasting insulin levels |
Strong recommendation |
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Aerobic exercise can effectively decrease insulin resistance and improve lipid profile, BMI, abdominal circumference, and cardiorespiratory system (VO2 max) capacity in individuals with PCOS. High-intensity interval exercise and weight training are both beneficial in improving anthropometric measurements and insulin levels |
Weak recommendation |
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The recommended weekly physical activity is 250 minutes moderate intensity, 150 minutes high intensity, or a balanced combination of both. It is recommended to incorporate muscle strengthening exercises that focus on major muscle groups on two non-consecutive days per week, and screen time should be minimized |
Good practice point |
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Acupuncture therapy |
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Acupuncture therapy, combined with pharmacotherapy and lifestyle changes, can improve fertility by improving pregnancy and ovulation rates, decreasing the LH/FSH ratio, lowering HOMA-IR, lowering BMI, improving menstrual cycles, and improving insulin resistance |
Weak recommendation |
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Management of PCOS with menstrual disorders |
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Hormonal therapy |
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The use of combined oral contraceptive (COC) is recommended for adult women with PCOS to manage menstrual cycle disorders and/or clinical hyperandrogenism |
Strong recommendation |
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COC can be used for clinical hyperandrogenism and/or menstrual cycle disorders in adolescents at risk or diagnosed with PCOS |
Strong recommendation |
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Administering large dosages of ethinyl estradiol (>30 μg) does not provide a significant difference in clinical benefit compared to low doses (<30 μg) for treating hirsutism in PCOS |
Strong recommendation |
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The administration of cyproterone acetate and ethinyl estradiol 35 μg should be considered second-line therapy following COC |
Strong recommendation |
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Administration of oral progestin given 10 days per month for 6-month course can improve irregular menstrual cycles and hormonal profiles associated with hyperandrogenism |
Strong recommendation |
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Progestins can prevent endometrial hyperplasia, which lowers the likelihood of developing endometrial cancer in PCOS |
Weak recommendation |
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The combination of both metformin and COC can be used to manage the metabolic status of women with PCOS |
Good practice point |
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PCOS and infertility |
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Ovulation induction |
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Aromatase inhibitor |
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Letrozole should be the initial treatment for inducing ovulation in PCOS women who have anovulatory infertility and no other underlying causes of infertility |
Strong recommendation |
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If letrozole is unavailable or its usage is prohibited, other ovulation induction agents can be used |
Good practice point |
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Letrozole has a reduced likelihood of causing multiple pregnancies in comparison to clomiphene citrate |
Good practice point |
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Clomiphene citrate with/without metformin |
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Clomiphene citrate can be used in women with PCOS who have anovulatory cycles and no other underlying causes of infertility |
Strong recommendation |
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Clomiphene citrate can be used as an ovulation induction agent in obese PCOS (BMI ≥30 kg/m2), infertility, anovulatory cycles and no other underlying causes of infertility |
Strong recommendation |
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Clomiphene citrate may be administered in combination with metformin to manage PCOS- resistant clomiphene citrate, who have anovulatory infertility and no other underlying causes of infertility |
Strong recommendation |
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Adding dexamethasone may enhance responsiveness in patients who do not respond to clomiphene citrate |
Strong recommendation |
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Administering clomiphene citrate for ovarian stimulation carries a 5-7% chance of resulting multiple pregnancies. Therefore, ultrasound examination is required to evaluate the ovarian response |
Weak recommendation |
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When aromatase inhibitors are not available, clomiphene citrate is preferred for inducing ovulation |
Good practice point |
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The incidence of fetal malformations did not differ between the groups who received letrozole and clomiphene citrate |
Good practice point |
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Gonadotropin |
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Gonadotropins can be used as first-line treatment, with ultrasound monitoring and counseling related to the costs and risks of multiple pregnancies in women with PCOS who have anovulatory infertility and no other underlying causes of infertility |
Strong recommendation |
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When accessible and affordable, gonadotropins are a viable alternative after clomiphene citrate+metformin to induce ovulation in women with PCOS who have anovulatory infertility and no other underlying causes of infertility |
Strong recommendation |
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A combination of gonadotropin and metformin can be used instead of gonadotropins only in women with PCOS who have anovulatory infertility and no other underlying causes of infertility |
Strong recommendation |
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Gonadotropins can be administered using either the step-up or the step-down regimens |
Good practice point |
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The step-up regimen is preferable to the step-down regimen due to its enhanced safety and reduced likelihood of multiple pregnancies. Compared to the step-up regimen, the ovarian hyperstimulation rate was higher with the step-down regimen |
Strong recommendation |
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Gonadotropins or laparoscopic ovarian drilling (LOD) may be employed in women with PCOS who have anovulatory infertility, resistance to clomiphene citrate and no other underlying causes of infertility. Patients must be informed about the benefits and drawbacks of their treatment |
Strong recommendation |
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Consider the following when prescribing gonadotropins |
Good practice point |
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1) The availability and cost of the intervention |
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2) Expertise is necessary to implement the intervention |
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3) Requires intensive ultrasound monitoring |
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4) All accessible gonadotropin formulations have similar clinical effectiveness |
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5) A low-dose step-up gonadotropin regimen is recommended to enhance the mono follicular development |
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6) Risk of multiple pregnancies |
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When gonadotropins are used for ovulation induction, the trigger is only administered when there are <3 mature follicles. If there are >2 mature follicles, the trigger must be discontinued, and patients are advised to avoid unprotected sexual intercourse |
Good practice point |
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Anti-obesity medication |
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The use of medications with anti-obesity effects is considered an experimental therapy for PCOS to enhance fertility. The available evidence is inadequate to support the recommendation of using this medication to improve fertility |
Weak recommendation |
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Bariatric surgery |
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For PCOS patients, bariatric surgery is considered as an experimental treatment. The available evidence is inadequate to support the recommendation of using this medication to improve fertility |
Weak recommendation |
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Bariatric surgery may be considered in PCOS to improve weight loss, hirsutism, diabetes, hypertension, ovulation, menstrual cycle disorders, and pregnancy rates |
Weak recommendation |
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It is necessary to consider the following |
Good practice point |
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1) The cost of intervention |
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2) Following surgery, weight management must be maintained |
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3) The occurrence of perinatal risks such as small for gestational age, preterm labor, and perinatal mortality |
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4) Can lower the risk of macrosomia and gestational diabetes |
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5) It is recommended to refrain from getting pregnant while experiencing significant weight loss and to use contraception for 12 months post-bariatric surgery |
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When pregnancy occurs, it is essential to consider the following factors |
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1) Preventive management of nutritional deficiencies prior to and following surgery |
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2) Multidisciplinary approach |
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3) Monitoring fetal growth during pregnancy |
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Pregnancy outcomes |
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Compared to the general population, women with PCOS have an increased likelihood of achieving pregnancy. Pregnancy carries the potential for several risks, including gestational weight gain, gestational diabetes, miscarriage, small for gestational age, hypertension in pregnancy, preeclampsia, intrauterine growth restriction, low birth weight, preterm birth, and the necessity for a cesarean section. There was no evidence of an elevated risk associated with large for gestational age, macrosomia, or the need for instrumental assisted delivery among women with PCOS |
Strong recommendation |
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Women diagnosed with PCOS are recommended to adopt lifestyle changes from the beginning of their pregnancy |
Good practice point |
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Women diagnosed with PCOS who are considering pregnancy should have routine blood pressure evaluations due to the increased likelihood of hypertension and preeclampsia during pregnancy |
Good practice point |
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Women with PCOS who are considering pregnancy are advised to undergo an OGTT examination due to the increased likelihood of hyperglycemia and complications during pregnancy |
Good practice point |
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Use of insulin sensitizing agent |
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Metformin |
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Metformin can be given to women with PCOS who have a BMI of 25 kg/m2 or more in order to improve metabolic profiles such as glucose levels, insulin resistance, and lipid profile |
Strong recommendation |
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Metformin can be used to enhance ovulation, pregnancy, and live birth rates in women with PCOS who have anovulatory infertility and no other underlying causes of infertility. However, patients should be provided with information regarding more efficacious medications for inducing ovulation |
Strong recommendation |
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In obese PCOS (BMI ≥30 kg/m2) who have anovulatory infertility and no other underlying causes of infertility, the combination of clomiphene citrate and metformin has the potential to increase ovulation, pregnancy rates, and live births |
Strong recommendation |
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During in vitro fertilization (IVF), metformin use can lower the risk of ovarian hyperstimulation syndrome (OHSS) in women with PCOS |
Strong recommendation |
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Metformin is superior to a placebo in stimulating ovulation in women with PCOS, and the combination of metformin and clomiphene citrate is more effective than taking only clomiphene citrate |
Strong recommendation |
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Metformin can be given to pregnant women to restrict excessive weight gain and lower the likelihood of preterm labor |
Strong recommendation |
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Metformin combined with COC treatment may be given to women with PCOS and a BMI ≤30 kg/m2 after receiving COC or metformin only |
Strong recommendation |
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Thiazolidinedione (pioglitazone) |
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Pioglitazone therapy for PCOS can enhance ovulation. Discontinuation of treatment is advised if the patient desires pregnancy or becomes pregnant |
Good practice point |
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The effective dose of pioglitazone is 30 mg per day |
Good practice point |
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Inositol |
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Inositol, whether administered alone or in conjunction with other treatments, is considered as an experimental therapy for PCOS with infertility. The available evidence is inadequate to support the recommendation of using this medication to improve fertility |
Strong recommendation |
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It is recommended that women who use inositol and other complementary therapies seek the advice of a healthcare provider |
Good practice point |
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DLBS-3233 |
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DLBS-3233 50 mg daily for 6 weeks can reduce fasting insulin levels and HOMA-IR |
Strong recommendation |
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DLBS-3233 showed reduced adverse effects in comparison to metformin |
Strong recommendation |
|
Vitamin D |
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For PCOS patients, low dosages of vitamin D (4,000 IU/day) can improve insulin resistance |
Good practice point |
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Vitamin D supplementation in individuals with PCOS can enhance insulin sensitivity and lipid metabolism, decrease levels of free androgens, and enhance the response to ovulation induction |
Good practice point |
|
Laparoscopic ovarian surgery |
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LOD can be used as a second-line treatment for women with PCOS that does not respond to clomiphene citrate, who have anovulatory infertility and no other underlying causes of infertility |
Good practice point |
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LOD exhibits comparable effectiveness to gonadotropins in instances of clomiphene citrate resistance and exhibits a reduced likelihood of ovarian hyperstimulation and multiple pregnancies |
Good practice point |
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IVF |
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IVF is the treatment for PCOS with anovulation after the first or second-line ovulation induction medication has failed |
Good practice point |
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IVF is effective in PCOS with anovulation, and single embryo transfer can minimize multiple pregnancies |
Good practice point |
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PCOS patients undergoing IVF±ICSI should be provided with education regarding the following topics |
Good practice point |
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1) The availability, cost, and convenience of the procedure |
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2) Elevated risk of OHSS |
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3) Strategies to lower the likelihood of OHSS |
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In PCOS undergoing IVF±ICSI cycles with a GnRH agonist protocol, metformin can be given during or before stimulation to lower the likelihood of OHSS and improve clinical pregnancy |
Good practice point |
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Gonadotropin stimulation protocol |
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In women with PCOS undergoing IVF±ICSI cycles, the antagonist protocol has the potential to lower the occurrence of OHSS, the length of stimulation, and the total gonadotropin dose, in comparison to the long agonist protocol |
Strong recommendation |
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In IVF/ICSI cycles for PCOS, trigger using low dose hCG can lower the risk of OHSS |
Good practice point |
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In an IVF/ICSI cycle with a GnRH antagonist protocol, it is advisable to use a GnRH agonist as a trigger and freeze all viable embryos. This procedure is performed in cases where fresh embryo transfer is not planned or when there is an increased likelihood of OHSS |
Good practice point |
|
When undergoing IVF±ICSI cycles, frozen embryo transfer should be considered in women with PCOS |
Good practice point |
|
Trigger (trigger final oocyte maturation) |
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GnRH agonists are preferred over hCG as triggers to prevent OHSS |
Strong recommendation |
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Triggering with GnRH agonists leads to decreased pregnancy rates, especially in cases of fresh embryo transfer, however, this can be addressed in frozen embryo cycles |
Good practice point |
|
FSH and LH options |
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Recombinant or urine-derived FSH may be administered to women with PCOS who are undergoing controlled ovarian stimulation in IVF±ICSI cycles. There is inadequate evidence to support a specific FSH preparation |
Good practice point |
|
In women with PCOS who are undergoing controlled ovarian stimulation for IVF±ICSI cycles, exogenous recombinant LH should not be administered in conjunction with FSH on a regular basis |
Good practice point |
|
Adjunct metformin |
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Metformin can be given before or during ovarian stimulation in PCOS women undergoing IVF±ICSI cycles using a GnRH agonist protocol. The purpose is to decrease the likelihood of OHSS and improve the clinical pregnancy |
Strong recommendation |
|
There are several things to consider |
Good practice point |
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1) Metformin administered at the beginning of the GnRH agonist protocol |
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2) The recommended daily dose of metformin ranges from 1,000 mg to 2,550 mg |
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3) During positive pregnancy tests or the resumption of regular menstruation, metformin is discontinued unless there is a medical necessity to continue metformin therapy |
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It is important to inform patients that the use of metformin in conjunction with a GnRH antagonist treatment reduces the likelihood of OHSS |
Good practice point |
|
In vitro maturation (IVM) |
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An IVM entails the maturation of immature cumulus-oocyte complexes from stimulated and unstimulated antral follicles without a human gonadotropin trigger |
Good practice point |
|
With suitable facilities, IVM could be used to achieve pregnancy and live birth rates similar to IVF±ICSI without the risk of OHSS. This treatment involves the generation of an embryo, which is subsequently vitrified, thawed, and transferred in a subsequent cycle |
Good practice point |