Adjuvant use of melatonin for pain management in endometriosis-associated pelvic pain-A randomized double-blinded, placebo-controlled trial.

Considering the pharmacological treatment options for endometriosis-associated pain are confined to hormonal therapy and analgesics, we studied the analgesic effect of 20 mg melatonin as an adjuvant therapy in women with endometriosis-associated pain. This randomized double-blinded, placebo-controlled trial was conducted at the Research Center for Womens' Health at Södersjukhuset, a university hospital in Stockholm, Sweden. Forty women from 18 to 50 years of age with endometriosis and severe dysmenorrhea with or without chronic pelvic pain were given 20 mg Melatonin or placebo orally daily for two consecutive menstrual cycles or months. The level of pain was recorded daily on the 11-point numeric rating scale, a difference of 1.3 units was considered clinically significant. Clincaltrials.gov nr NCT03782740. Sixteen participants completed the study in the placebo group and 18 in the melatonin group. The difference in endometriosis-associated pain between the groups showed to be non-significant statistically as well as clinically, 2.9 (SD 1.9) in the melatonin group and 3.3 (SD 2.0) in the placebo group, p = 0.45. This randomized, double-blinded, placebo-controlled trial could not show that 20 mg of melatonin given orally at bedtime had better analgesic effect on endometriosis-associated pain compared with placebo. No adverse effects were observed.

[Iron deficiency and new dietary habits]. / Nya matvanor kan ytterligare öka prevalensen av järnbrist.

The prevalence of iron deficiency (ID) is 26-44 percent among young girls in Sweden. Their level of iron intake is lower than the recommended daily intake. Meat has the highest bioavailability of iron. As the consumption of meat is declining, especially amongst women, meat substitutes are increasing. A new study shows that the absorption of the iron indicated on the nutritional information labels of meat substitutes is impaired by high levels of phytates in the products.  Fatigue, headache and reduced cognitive function are symptoms of ID. ID during pregnancy renders the mother ill-equiped for hemorrhage during delivery and increases the risk for pre-term birth and low birth weight. Serum hemoglobin is not sufficient to diagnose iron deficiency without anemia. Ferritin is a cheap test, which should be used more. Regulation of menstrual bleeding and dietary advice should complement the replenishment of iron stores through iron therapy to avoid a negative iron balance.

Adjuvant use of melatonin for pain management in dysmenorrhea - a randomized double-blinded, placebo-controlled trial.

PURPOSE: Dysmenorrhea is a common, recurring, painful condition with a global prevalence of 71%. The treatment regime for dysmenorrhea includes hormonal therapies and NSAID, both of which are associated with side effects. A dose of 10 mg melatonin daily has previously been shown to reduce the level of pelvic pain in women with endometriosis. We chose to investigate how this regime, administered during the week of menstruation, would affect women with dysmenorrhea but without any signs of endometriosis, as adjuvant analgesic treatment. METHODS: Forty participants with severe dysmenorrhea were randomized to either melatonin or placebo, 20 in each group. Our primary outcome was pain measured with numeric rating scale (NRS); a difference of at least 1.3 units between the groups was considered clinically significant. Secondary outcomes were use of analgesics, as well as absenteeism and amount of bleeding. Mixed model was used for statistical analysis. RESULTS: Eighteen participants completed the study in the placebo group and 19 in the melatonin group. Mean NRS in the placebo group was 2.45 and 3.18 in the melatonin group, which proved to be statistically, although not clinically significant. CONCLUSION: This randomized, double-blinded, placebo-controlled trial could not show that 10 mg of melatonin given orally at bedtime during the menstrual week had better analgesic effect on dysmenorrhea as compared with placebo. However, no adverse effects were observed. CLINICAL TRIALS: NCT03782740 registered on 17 December 2018.

Prevalence and impact of dysmenorrhea in Swedish adolescents.

INTRODUCTION: The objective of this study was to estimate the prevalence of dysmenorrhea among adolescents and its effect on daily life. MATERIAL AND METHODS: A web-based questionnaire with questions regarding menstrual symptoms was distributed to all girls born in 2000 and residing in Stockholm City (n = 3998). Questions regarding pain severity, other menstrual-related symptoms, medical treatment, healthcare visits, and social and academic absenteeism were included in the questionnaire. RESULTS: A total of 1785 (45%) young women responded to the questionnaire. Of these, 1580 (89%, 95% CI 87-90) stated that they had dysmenorrhea. Severe dysmenorrhea, scores 8-10 on the numeric rating scale for pain, was reported by 574 of 1580 women (36%, 95% CI 34-39). Fatigue was reported by 1314 of 1580 women (83%, 95% CI 81-85), headache by 1296 (82%, 95% CI; 80-84), dyschezia by 578 (37%, 95% CI 34-39) and dysuria by 560 (35%, 95% CI 33-38). A suboptimal use of analgesics was reported. Hormonal therapy as pain treatment was used by 10% (157/1580, 95% CI 9-12). Healthcare facilities, including school nurses, had been visited by 525 of 1580 women (33%, 95% CI; 31-36). Doctors had been consulted by 7% (116/1580, 95% CI 6-9). Fifty-nine percent (930/1580, 95% CI 56-61) reported refraining from social activities due to dysmenorrhea. Absenteeism from school was reported to occur monthly by 228 of 1580 women (14%, 95% CI 13-16), and several times per year by 716 (45%, 95% CI 43-48). CONCLUSIONS: Our findings demonstrate that menstrual pain is prevalent among teenagers in Stockholm. The results indicate that many women are disabled in their daily life and that only a small number of women seek medical attention, although possible selection bias might have affected the results. Information and education are needed to optimize the use of existing treatment options and more awareness is needed to reduce normalization of disabling dysmenorrhea.