Medicine
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This repository contains the published and unpublished research of the Faculty of Medicine by the staff members of the faculty
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Item Post-placental and interval intrauterine contraceptive device (IUD) insertion: does timing matter?(Wiley-Blackwell, 2015) Dias, T.D.; Palihawadana, T.S.; Wijekoon, D.; Ganeshamoorthy, P.; Abeykoon, S.; Liyanage, G.; Padeniya, T.INTRODUCTION Unintended pregnancies in the first year after childbirth could be high as 10–44% and expose women to consequences of induced abortion, especially in countries where termination of pregnancy is illegal. Immediate postpartum contraception methods are beneficial for women who wish for early contraception and for women who have difficulty in returning for postpartum visits for contraception. Use of Copper containing intrauterine contraceptive device (IUD) immediately after delivery (post placental) has been described recently with varying success. The aim of this study was to compare the rate of spontaneous expulsion and intrauterine displacement between post placental IUD insertion and routine IUD insertion, 6 weeks after delivery. METHODS This was an interventional comparative study. Women who were willing to start on IUD as a contraceptive method after childbirth were recruited for the study. They were randomly allocated to either group before labour/ delivery and those in the group of post placental insertion had it inserted immediately following vaginal delivery and those allocated for interval group had insertion 6 weeks after delivery. Two ultrasound examinations were performed, just after the insertion and 6 weeks later in both groups. The distance from the IUD to the internal os was measured at each examination to evaluate the displacement. RESULTS The study included 30 subjects in the post placental group and 33 in interval insertion group. The postpartum insertion group and the interval insertion groups were comparable for age [mean (SD) 27.1 (5.42) versus 25.6 (4.34), P = 0.23] and BMI [mean (SD) 22.4 (7.28) versus 23.9 (5.76), P = 0.34]. As expected, the uterine length at insertion was higher among the post placental group [mean (SD) 144.1 mm (12.2) versus 66.8 (6.7), 95%CI 72.3 to 82.1] but similar in two groups at follow up [66.6 mm (15.1) versus 64.79 (6.64), 95%CI _4.01 to 7.47]. Spontaneous expulsion and displacement was not significantly different between the post placental and interval insertion groups [3/30 versus 2/33, OR 1.72; 95%CI 0.28 to 10.7]. In these two groups, there was no difference noted in the second ultrasound measurements from the IUD to the fundal wall [16.9 mm (3.99) versus 18.24 (4.36); 95%CI _3.45 to 0.77] or to the internal os [21.8 mm (15.7) versus 17.1 (6.03); 95%CI _1.12 to 10.6]. CONCLUSION This study demonstrates that insertion of an IUD immediately after delivery does not increase the risk of spontaneous expulsion or the risk of downward displacement. Therefore, such insertion can be recommended in clinical practiceItem Ultrasound parameters of pelvic organs and their age-related changes in a cohort of asymptomatic postmenopausal women: A community-based study.(Sage Publishing, 2020) Dias, T.D.; Palihawadana, T.S.; Patabendige, M.; Motha, M.B.; de Silva, H.J.No abstract available.Item Prevalence of menopausal symptoms and their impact on daily activities: A community based longitudinal study in Ragama, Sri Lanka(Sri Lanka College of Obstetricians & Gynaecologists, 2016) Heenatigala, C.S.N.; Gunathilaka, S.N.M.P.K.; Dias, T.D.; Palihawadana, T.S.; Motha, M.B.C.; de Silva, H.J.OBJECTIVES: To determine the prevalence and severity of menopausal symptoms among women. DESIGN,SETTING AND METHODS: A community-based cross sectional study was done in a study population of a larger ongoing longitudinal study named ‘Ragama Health Study’. Randomly selected 954 women from Ragama Medical Officer of Health (MOH) area were included. Data was collected using a self-administered questionnaire. Impact on daily activities by menopausal symptoms were scored using a scale from 1-10.RESULTS: Out of 954 women in the study, 814(85.3%) were postmenopausal. Age of the population distributed from 41-74 years with mean of 59.51 years. Mean age of onset of the menopausal symptoms was 52.16(SD=8.095) years. Among the symptoms inquired, the domain of sexual activity contained the most commonly experienced symptom, decreased libido, with a 65.4% (n=937) positive responses while 20.5% of women experienced vaginal dryness.. Mean score on impact on daily activities by this was 7.79(SD 2.36). Psychosocial symptoms of forgetfulness, bad temper, irritability and poor concentration was present in 60.5%, 33.8%, 25.4% and 24.8% of positive responses respectively. Mean scores on impact on daily activities by psychosocial symptoms lied within the range of 4.55-5.52. Presence of experiencing hot flushes and increased sweating were 24.8% and 22.1% with a mean score of effect on daily activities at 5.24 and 5.65, respectively. CONCLUSIONS The rate of menopausal symptoms among this perimenopausal age group was significant and the impact on daily activities in this population was comparable to the global contextItem A study on the rate of symptoms of pelvic floor dysfunction among healthy women in pre and post-menopausal age and its impact on their day-to-day life.(Sri Lanka College of Obstetricians & Gynaecologists, 2016) Pieris, K.V.M.; Prasanga, D.P.G.G.M.; Dias, T.D.; Palihawadana, T.S.; Motha, M. .C.; de Silva, H.J.OBJECTIVES: Aim of the study was to analyze the rate of symptoms of pelvic floor dysfunction, the presence of pelvic organ prolapse and to study how the symptoms affect the day to day life activities in a population of women living in the Ragama Medical Officer of Health (MOH) area.DESIGN, SETTING AND METHODS: A community-based cross sectional study was done in a study population of a larger ongoing longitudinal study named ‘Ragama Health Study’. Randomly selected 951 women from Ragama Medical Officer of Health (MOH) area were included. The symptoms of pelvic floor dysfunction were elicited using a self-administered questionnaire and a vaginal examination was performed to assess the presence and grade of pelvic organ prolapse. RESULTS: Among the 951 women 881(92.6%) did not have symptoms of pelvic floor dysfunction. Among the symptomatic women (n=70), urgency was the commonest symptom (26.8%) while 23.5% admitted urinary incontinence and 16.1% of women experienced fecal incontinence. Among the women with such symptoms of pelvic organ prolapse only 5.6% complained of these interfering with their sexual activities while 10.8% admitted them having an effect on their day-to-day activities. Pelvic organ prolapse was not elicited on clinical examination in 32.1% of symptomatic women while 60.7% had a prolapse up to the hymen and 7.2% had a prolapse beyond the level of hymen. CONCLUSIONS: Rate of symptoms of pelvic floor dysfunction was around 7.5% among this sample of women in peri and postmenopausal age. Urinary incontinence and fecal incontinence were the most frequent symptoms. Only a few symptomatic women considered this to have an effect on their sexual function (5%) and day-to-day activities (10%). More than two thirds of women with symptoms had genital prolapse with over 7% having a significant prolapse protruding beyond the hymen.Item Prevalence of menopausal symptoms and their impact on daily activities: A community based longitudinal study in Ragama, Sri Lanka(Sri Lanka College of Obstetricians & Gynaecologists, 2016) Heenatigala, C.S.N.; Gunathilaka, S.N.M.P.K.; Dias, T.D.; Palihawadana, T.S.; Motha, M.B.C.; de Silva, H.J.OBJECTIVE: To determine the prevalence and severity of menopausal symptoms among women. DESIGN, SETTING AND METHODS: A community-based cross sectional study was done in a study population of a larger ongoing longitudinal study named ‘Ragama Health Study’. Randomly selected 954 women from Ragama Medical Officer of Health (MOH) area were included. Data was collected using a self-administered questionnaire. Impact on daily activities by menopausal symptoms were scored using a scale from 1-10. RESULTS: Out of 954 women in the study, 814(85.3%) were postmenopausal. Age of the population distributed from 41-74 years with mean of 59.51 years. Mean age of onset of the menopausal symptoms was 52.16(SD=8.095) years. Among the symptoms inquired, the domain of sexual activity contained the most commonly experienced symptom, decreased libido, with a 65.4% (n=937) positive responses while 20.5% of women experienced vaginal dryness.. Mean score on impact on daily activities by this was 7.79(SD 2.36). Psychosocial symptoms of forgetfulness, bad temper, irritability and poor concentration was present in 60.5%, 33.8%, 25.4% and 24.8% of positive responses respectively. Mean scores on impact on daily activities by psychosocial symptoms lied within the range of 4.55-5.52. Presence of experiencing hot flushes and increased sweating were 24.8% and 22.1% with a mean score of effect on daily activities at 5.24 and 5.65, respectively. CONCLUSIONS: The rate of menopausal symptoms among this perimenopausal age group was significant and the impact on daily activities in this population was comparable to the global context.Item A study on the rate of symptoms of pelvic floor dysfunction among healthy women in pre and post-menopausal age and its impact on their day-to-day life.(Sri Lanka College of Obstetricians & Gynaecologists, 2016) Pieris, K.V.M.; Prasanga, D.P.G.G.M.; Dias, T.D.; Palihawadana, T.S.; Motha, M.B.C.; de Silva, H.J.OBJECTIVES: Aim of the study was to analyze the rate of symptoms of pelvic floor dysfunction, the presence of pelvic organ prolapse and to study how the symptoms affect the day to day life activities in a population of women living in the Ragama Medical Officer of Health (MOH) area. DESIGN, SETTING AND METHODS: A community-based cross sectional study was done in a study population of a larger ongoing longitudinal study named ‘Ragama Health Study’. Randomly selected 951 women from Ragama Medical Officer of Health (MOH) area were included. The symptoms of pelvic floor dysfunction were elicited using a self-administered questionnaire and a vaginal examination was performed to assess the presence and grade of pelvic organ prolapse. RESULTS: Among the 951 women 881(92.6%) did not have symptoms of pelvic floor dysfunction. Among the symptomatic women (n=70), urgency was the commonest symptom (26.8%) while 23.5% admitted urinary incontinence and 16.1% of women experienced fecal incontinence. Among the women with such symptoms of pelvic organ prolapse only 5.6% complained ofthese interfering with their sexual activities while 10.8% admitted them having an effect on their day-to-day activities. Pelvic organ prolapse was not elicited on clinical examination in 32.1% of symptomatic women while 60.7% had a prolapse up to the hymen and 7.2% had a prolapse beyond the level of hymen. CONCLUSIONS: Rate of symptoms of pelvic floor dysfunction was around 7.5% among this sample of women in peri and postmenopausal age. Urinary incontinence and fecal incontinence were the most frequent symptoms. Only a few symptomatic women considered this to have an effect on their sexual function(5%) and day-to-day activities (10%). More than two thirds of women with symptoms had genital prolapse with over 7% having a significant prolapse protruding beyond the hymen.Item Semen ph in infertile males and its association with semen parameters(Sri Lanka College of Obstetricians and Gynaecologists, 2005) Dissanayake, D.M.A.B.; Palihawadana, T.S.; Amarasena, J.M.T.; Fernando, W.S.INTRODUCTION: Assessment of pH of the ejaculate is part of the basic seminal fluid analysis. The WHO defines the reference range for seminal fluid pH to be 7.2 or more. In practise we have observed that the pH is commonly in the alkaline range in patients with normal as well as abnormal seminal parameters. Furthermore, there are many others who question the reference range defined by the WHO, and claim it to be too low. Objective: To define the range of pH in seminal fluid in a infertile male population and to assess the association it shows to seminal fluid parameters. METHOD: Seminal fluid analysis including pH assessment was done on 168 males who sought infertility treatment at the university infertility clinic, at teaching hospital, Ragama. The pH was assessed within 30 minutes from collecting the sample using a pH meter. The seminal fluid analysis was done according to the WHO criteria. Log inversion of pH was done prior to calculation ofmeans. Results: The mean (±SD) pH of the sample population was 7.70 (±0.25) with a minimum of 6.78 and a maximum of 8.52. Only five patients (3%) had a pH less than 7.2. The distribution of the pH showed a 5" percentile value of 7.37 and a 95 'percentile of8.21.Thirty four percent (n=57) of subjects had a normal Seminal fluid analysis with regard to volume, concentration, motility and viability. Mean pH value showed a significant difference between the groups with a normal vs. abnormal volume of ejaculate, 7.75 vs. 7.59, P<0.05. Similar differences were not seen with any other semen parameter. Conclusion: The pH of ejaculate in this study sample is towards an alkaline range. Associations between semen pH and seminal parameters needs further study.Item Anovulation as cause of infertility and novel methods of ovulation induction(Faculty of Medicine, University of Kelaniya, Sri Lanka, 2016) Palihawadana, T.S.Infertility is known to affect one in six couples. Ovulatory dysfunction is a common underlying cause and is seen in approximately 38% of couples seeking infertility treatment. Polycystic ovary syndrome was the commonest underlying cause of anovulation and was seen in nearly 60% women. Hypogonadotropic hypogonadism and ovarian failure are uncommon causes of anovulation seen in only about 1-2% of women with anovulation. Clomifene citrate is the commonest medication used for induction of ovulation. It is successful in achieving ovulation in over three quarters of women with WHO group II anovulation. However, factors such as hirsutism, a high antral follicle count and a high LH:FSH ratio are associated with clomifene resistance. Aromatase inhibitor, letrozole, is a novel medication for induction of ovulation. It is successful in achieving ovulation in nearly 75% of women who respond to clomifene and 25% of women with clomifene resistance. Factors associated with resistance to letrozole included a high day2 LH level, hirsuitism and clomifene resistance had the highest association. The use of letrozole for augmentation of ovulation, in comparison to clomifene, resulted in a higher endometrial thickness and a trend towards monofollicle development. Gonadotropin (FSH) is used in induction of ovulation among women with resistance to oral medication. A low-dose step down regimen of rFSH, in comparison to a low-dose step-up regimen, showed a shorter duration of treatment, with no significant reduction in the total drug requirement. These findings have improved our understanding of different modes of induction of ovulation, which helps in further research and clinical practice.Item Factors associated with nonresponse to ovulation induction using letrozole among women with World Health Organization group II anovulation(Medknow Publications, 2015) Palihawadana, T.S.; Wijesinghe, P.S.; Seneviratne, H.R.CONTEXT: Letrozole, a third generation aromatase inhibitor is gaining importance in ovulation induction. Some prefer to use it as a second line agent in women who fail to respond to clomifene citrate. However, our knowledge about the predictors of response to letrozole is limited. AIMS: The study was aimed at identifying the factors associated with letrozole resistance among women with World Health Organization (WHO) group II anovulation. SUBJECTS AND METHODS: Study was conducted at the infertility clinic at a tertiary care hospital in Sri Lanka. A case–control study design was used and included 50 subjects with WHO group II anovulation (25 clomifene responsive and 25 clomifene resistant). After a treatment cycle of letrozole, the factors were compared between the subjects who responded and those who failed to respond to treatment. RESULTS: Ovulation was achieved in 76% (n = 19) of subjects who had responded to clomifene previously and in 24% (n = 6) with clomifene resistance. The factors associated with letrozole resistance included the presence of hirsutism (odds ratio [OR]: 3.89; 95% confidence interval [CI]: 1.2–12.3) and clomifene resistance (OR: 10.03; 95% CI: 2.81–35.7). The early follicular phase mean (standard deviation) luteinizing hormone level was significantly higher among the nonresponders (9.75 [4.78] – 7.28 [2.3]; P = 0.02). Nonresponders showed significantly lower levels of oestradiol on the 5th and 9th days (28.50 [3.39] pg/mL vs. 7.49 [3.62] pg/mL; P = 0.0007 and 142.04 [76.22] pg/mL vs. 28.10 [12.8] pg/mL; P = 0.0001) of the menstrual cycle, respectively. CONCLUSIONS: The features associated with resistance to Letrozole at a dose of 2.5 mg show some overlap with those associated with clomifene resistance. However, some features do not show similar association. The effectiveness of letrozole at a dose of 2.5 mg in induction of ovulation among women with clomifene resistance is low and it does not seem to be a suitable treatment at a dose of 2.5 mg for this indication.Item Evaluation of reproductive hormone profile in relation to semen quality in male partners of subfertile couples(Sri Lanka Association for the Advancement of Science, 2007) Dissanayake, D.M.A.B.; Palihawadana, T.S.; Wijesinghe, P.S.; Ratnasooriya, W.D.; Wimalasena, S.The objective of the study was to assess the reproductive hormone profile of a Sri Lankan subfertile male population and to relate it to their semen parameters. Male partners of 152 subfertile couples who sought treatment at the subfertility unit of the department of Obstetrics and Gynaecology at the Faculty of Medicine, Ragama were included in the study. Serum samples were assayed for follicle stimulating hormone (FSH), luteinizing hormone (LH), prolactin (PRL), Estradiol (E2) and testosterone (T) levels, using electrochemiluminescence immunoassay (ECLIA). A semen sample was obtained from each participant on the same day. Seminal fluid analysis was done according to the WHO guidelines. The mean (SEM) of FSH, LH, PRL, E2 and T levels of the males were 5.35 (0.53) mIU/mL, 6.20 (0.33) mIU/mL, 17.53 (0.60) ng/mL, 30.48 (1.80) pg/mL and 523.80 (14.74) ng/dL and the prevalence of abnormalities of these hormones were 9.8% (n=15), 5.9% (n=9), 13.15% (n=20), 0.6% (n=1) and 2.6% (n=4) respectively. Of the study population 20.3% (n=31) men had either single or combination of hormone abnormalities. When the mean hormone levels of the men with normal semen parameters were compared with those of men with abnormal semen parameters, none showed a statistically significant difference; FSH - 4.18 (2. 78) Vs 4.58 (3.15), LH - 5.90 (2.78) Vs 5.70 (2.36), PRL - 28.63 (14.96) Vs 17.59 (7.63) and T -551.39ñ208.17 Vs 515.73 (158.25). Mean (SD), FSH and LH levels were significantly higher among azoospermic participants compared with normozoospermics; 19.69 (9.93) Vs 4.18 (2.78) for FSH, 12.82 (11.82) Vs 5.90 (2.78) for LH, p<0.01). Similarly FSH and LH levels were significantly higher in severe oligospermic participants compared with the normozoospermics; 7.58 (4.34) Vs 4.18 (2.78) for FSH, and 6.96 (2.65) Vs 5.90 (2.78) for LH, p<0.05). The serum FSH level showed an inverse correlation with sperm concentration (r= -0.203, p<0.05) and total sperm count (r= -0.206, p<0.05). In conclusion, an endocrinopathy was present in up to 20% of this population. Abnormalities in Gonadotrophin levels were related with azoospermia and severe oligozoospermia. Serum FSH showed a negative correlation with the sperm concentration and the total sperm count. Other hormones failed to show a significant relationship with the semen parameters in this population. Acknowledgement: National Science Foundation research grant No. RG/2004/M/14