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| 3. |
- Corona, Giovanni, et al.
(författare)
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Age-Related Changes in General and Sexual Health in Middle-Aged and Older Men: Results from the European Male Ageing Study (EMAS)
- 2010
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Ingår i: Journal of Sexual Medicine. - : Oxford University Press (OUP). - 1743-6109 .- 1743-6095. ; 7:4, s. 1362-1380
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Tidskriftsartikel (refereegranskat)abstract
- Introduction. Limited information is available concerning the general and sexual health status of European men. Aim. To investigate the age-related changes in general and sexual health in middle-aged and older men from different countries of the European Union. Methods. This is a cross-sectional multicenter survey performed on a sample of 3,369 community-dwelling men aged 40-79 years old (mean 60 +/- 11 years). Subjects were randomly selected from eight European centers including centers from nontransitional (Florence [Italy], Leuven [Belgium], Malmo [Sweden], Manchester [United Kingdom], Santiago de Compostela [Spain]) and transitional countries (Lodz [Poland], Szeged [Hungary], Tartu [Estonia]). Main Outcome Measures. Different parameters were evaluated including the Beck's Depression Inventory for the quantification of depressive symptoms, the Short Form-36 Health Survey for the assessment of the quality of life (QoL), the International Prostate Symptom Score for the evaluation of lower urinary tract symptoms, and the European Male Ageing Study sexual function questionnaire for the study of sexual function. Results. More than 50% of subjects reported the presence of one or more common morbidities. Overall, hypertension (29%), obesity (24%), and heart diseases (16%) were the most prevalent conditions. Around 30% of men reported erectile dysfunction (ED) and 6% reported severe orgasmic impairment, both of which were closely associated with age and concomitant morbidities. Only 38% of men reporting ED were concerned about it. Furthermore, concern about ED increased with age, peaking in the 50-59 years age band, but decreased thereafter. Men in transitional countries reported a higher prevalence of morbidities and impairment of sexual function as well as a lower QoL. Conclusion. Sexual health declined while concomitant morbidities increased in European men as a function of age. The burden of general and sexual health is higher in transitional countries, emphasizing the need to develop more effective strategies to promote healthy aging for men in these countries. Corona G, Lee DM, Forti G, O'Connor DB, Maggi M, O'Neill TW, Pendleton N, Bartfai G, Boonen S, Casanueva FF, Finn JD, Giwercman A, Han TS, Huhtaniemi IT, Kula K, Lean MEJ, Punab M, Silman AJ, Vanderschueren D, Wu FCW, and EMAS Study Group. Age-related changes in general and sexual health in middle-aged and older men: Results from the European Male Ageing Study (EMAS). J Sex Med 2010;7:1362-1380.
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| 4. |
- Corona, Giovanni, et al.
(författare)
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Self-Reported Shorter Than Desired Ejaculation Latency and Related Distress—Prevalence and Clinical Correlates : Results From the European Male Ageing Study
- 2021
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Ingår i: Journal of Sexual Medicine. - : Oxford University Press (OUP). - 1743-6095. ; 18:5, s. 908-919
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Tidskriftsartikel (refereegranskat)abstract
- Background: Few data have looked at the occurrence and clinical correlates of self-reported shorter than desired ejaculation latency (rapid ejaculation, RE) and its related distress in the general population. Aim: To determine the prevalence and clinical correlates of self-reported RE and RE- related distress in middle age and older European men. Methods: Subjects were recruited from population samples of men aged 40-79 years across 8 European centers. Outcomes: Self-reported RE and its related distress were derived from the European male Aging Study (EMAS) sexual function questionnaire (EMAS-SFQ). Beck's depression Inventory (BDI) was used for the quantification of depressive symptoms, the Short Form 36 health survey (SF-36) for the assessment of the quality of life, the International Prostate Symptom Score (IPSS) for the evaluation of lower urinary tract symptoms. Results: About 2,888 community dwelling men aged 40-79 years old (mean 58.9 ± 10.8 years) were included in the analysis. Among the subjects included, 889 (30.8%) self-reported RE. Among them, 211 (7.3%) claimed to be distressed (5.9% and 1.4% reported mild or moderate-severe distress, respectively). Increasing levels of RE-related distress were associated with a progressive worse sexual functioning, higher risk of ED and with couple impairment, along with a higher prevalence of depressive symptoms (all P < 0.05). Furthermore, a worse quality of life and higher IPSS score were associated with RE-related distress (all P < 0.05). The aforementioned results were confirmed even when patients using drugs possibly interfering with ejaculation or those without a stable relationship were excluded from the analysis. Clinical Implications: RE is a frequent condition in men from the general population; however, its related distress is relatively modest. Nonetheless, men with any degree of self-reported RE show increasing levels of depression, worse quality of life and worse couple satisfaction. Strengths & Limitations: This is the first study estimating the prevalence of self-reported RE and its related distress, along with their biological and psychological correlates, in a population sample of European middle age and older men. However, is should be recognized that the diagnosis of RE was derived from patient reports and not supported by Intra-ejaculatory-Latency-Time (IELT) measurements. Conclusion: Self-reported RE is relatively common in European men aged more than 40 years. The reported limited RE-related distress may explain the relatively low number of medical consultations for RE. RE-related distress is associated with worse sexual function, couple impairment, and more LUTS resulting in a worse quality of life and mood disturbances. Corona G, Rastrelli G, Bartfai G, et al. Self-Reported Shorter Than Desired Ejaculation Latency and Related Distress—Prevalence and Clinical Correlates: Results From the European Male Ageing Study. J Sex Med Rev 2021;18:908–919.
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| 5. |
- Corona, Giovanni, et al.
(författare)
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Sperm recovery and ICSI outcomes in men with non-obstructive azoospermia : a systematic review and meta-analysis
- 2019
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Ingår i: Human Reproduction Update. - : Oxford University Press (OUP). - 1355-4786 .- 1460-2369. ; 25:6, s. 733-757
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Factor affecting sperm retrieval rate (SRR) or pregnancy rates (PR) after testicular sperm extraction (TESE) in patients with non-obstructive azoospermia (NOA) have not been systematically evaluated. In addition, although micro-TESE (mTESE) has been advocated as the gold standard for sperm retrieval in men with NOA, its superiority over conventional TESE (cTESE) remains conflicting. OBJECTIVE AND RATIONALE: The objective was to perform a meta-analysis of the currently available studies comparing the techniques of sperm retrieval and to identify clinical and biochemical factors predicting SRR in men with NOA. In addition, PRs and live birth rates (LBRs), as derived from subjects with NOA post-ICSI, were also analysed as secondary outcomes. SEARCH METHODS: An extensive Medline, Embase and Cochrane search was performed. All trials reporting SRR derived from cTESE or mTESE in patients with NOA and their specific determinants were included. Data derived from genetic causes of NOA or testicular sperm aspiration were excluded. OUTCOMES: Out of 1236 studies, 117 studies met the inclusion criteria for this study, enrolling 21 404 patients with a mean age (± SD) of 35.0 ± 2.7 years. cTESE and mTESE were used in 56 and 43 studies, respectively. In addition, 10 studies used a mixed approach and 8 studies compared cTESE with mTESE approach. Overall, a SRR per TESE procedure of 47[45;49]% (mean percentage [95% CI]) was found. No differences were observed when mTESE was compared to cTESE (46[43;49]% for cTESE versus 46[42;49]% for mTESE). Meta-regression analysis demonstrated that SRR per cycle was independent of age and hormonal parameters at enrolment. However, the SRR increased as a function of testis volume. In particular, by applying ROC curve analysis, a mean testis volume higher than 12.5 ml predicted SRR >60% with an accuracy of 86.2% ± 0.01. In addition, SRR decreased as a function of the number of Klinefelter's syndrome cases included (S = -0.02[-0.04;-0.01]; P < 0.01. I = 0.12[-0.05;0.29]; P = 0.16). Information on fertility outcomes after ICSI was available in 42 studies. Overall, a total of 1096 biochemical pregnancies were reported (cumulative PR = 29[25;32]% per ICSI cycle). A similar rate was observed when LBR was analysed (569 live births with a cumulative LBR = 24[20;28]% per ICSI cycle). No influence of male and female age, mean testis volume or hormonal parameters on both PR and LBR per ICSI cycle was observed. Finally, a higher PR per ICSI cycle was observed when the use of fresh sperm was compared to cryopreserved sperm (PR = 35[30;40]%, versus 20[13;29]% respectively): however, this result was not confirmed when cumulative LBR per ICSI cycle was analysed (LBR = 30[20;41]% for fresh versus 20[12;31]% for cryopreserved sperm). WIDER IMPLICATIONS: This analysis shows that cTESE/mTESE in subjects with NOA results in SRRs of up to 50%, with no differences when cTESE was compared to mTESE. Retrieved sperms resulted in a LBR of up to 28% ICSI cycle. Although no difference between techniques was found, to conclusively clarify if one technique is superior to the other, there is a need for a sufficiently powered and well-designed randomized controlled trial to compare mTESE to cTESE in men with NOA.
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| 6. |
- Dewitte, Marieke, et al.
(författare)
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A Psychosocial Approach to Erectile Dysfunction : Position Statements from the European Society of Sexual Medicine (ESSM)
- 2021
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Ingår i: Sexual Medicine. - : Elsevier. - 2050-1161. ; 9:6
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Forskningsöversikt (refereegranskat)abstract
- INTRODUCTION: Although erectile dysfunction (ED) involves an interaction between physiological and psychological pathways, the psychosocial aspects of ED have received considerably less attention so far.AIM: To review the available evidence on the psychosocial aspects of ED in order to develop a position statement and clinical practice recommendations on behalf of the European Society of Sexual Medicine (ESSM).METHOD: A comprehensive, narrative review of the literature was performed.MAIN OUTCOME MEASURES: Specific statements and recommendations according to the Oxford Centre for Evidence-Based Medicine 2011 Levels of Evidence criteria were provided.RESULTS: A multidisciplinary treatment, in which medical treatment is combined with a psychological approach, is preferred over unimodal treatment. There is increasing evidence that psychological treatments of ED can improve medical treatments, the patient's adherence to treatment, and the quality of the sexual relationship. The main components of psychological treatment of ED involve cognitive and behavioral techniques aimed at reducing anxiety, challenging dysfunctional beliefs, increasing sexual stimulation, disrupting sexual avoidance, and increasing intimacy and communication skills in a relational context. When applicable and possible, it is strongly recommended to include the partner in the assessment and treatment of ED and to actively work on interpartner agreement and shared decision-making regarding possible treatment options. To ensure a better integration of the biopsychosocial model into clinical practice, developing concrete treatment protocols and training programs are desirable.CONCLUSION: Because the psychosocial approach to ED has been underexposed so far, this position statement provides valuable information for clinicians treating ED. Psychological interventions on ED are based on existing theoretical models that are grounded in empirical evidence. However, the quality of available studies is low, which calls for further research. The sexual medicine field would benefit from pursuing more diversity, inclusivity, and integration when setting up treatments and evaluating their effect. Dewitte M, Bettocchi C, Carvalho J, et al. A Psychosocial Approach to Erectile Dysfunction: Position Statements from the European Society of Sexual Medicine (ESSM). Sex Med 2021;XX:XXXXXX.
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- Khoo, Christopher C., et al.
(författare)
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Does Testicular Sperm Improve Intracytoplasmic Sperm Injection Outcomes for Nonazoospermic Infertile Men with Elevated Sperm DNA Fragmentation? A Systematic Review and Meta-analysis
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Ingår i: European Urology Focus. - 2405-4569.
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Forskningsöversikt (refereegranskat)abstract
- Context: For nonazoospermic infertile men with elevated sperm DNA fragmentation (SDF), it is unclear whether the use of testicular sperm for intracytoplasmic sperm injection (ICSI) may offer advantages over ejaculated sperm. Objective: To determine whether ICSI outcomes (fertilisation rate, pregnancy rate, miscarriage rate, and live birth rate) are better with testicular sperm than with ejaculated sperm for men with elevated SDF. Evidence acquisition: We searched the Cochrane Central, EMBASE, MEDLINE, Web of Science, and Scopus databases (1946–2023) in February 2023 for relevant human comparative studies according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Evidence synthesis: Out of 2032 records, nine studies (more than 536 participants, mean age range 33–40.5 yr for males and 30.1–37.9 yr for females) were included in the systematic review and meta-analysis. Pooled estimates demonstrated that the pregnancy rate was significantly higher with testicular than with ejaculated sperm according to a sperm chromatin structure assay (SCSA)/sperm chromatin integrity test (SCIT) (odds ratio [OR] 2.51; p = 0.001) and terminal deoxynucleotidyl transferase dUTP nick-end labelling (TUNEL) assays (OR 3.65; p = 0.005). The live birth rate was significantly higher according to SCSA/SCIT (OR 2.59; p = 0.005). There were no significant differences in the fertilisation rate or miscarriage rate. Conclusions: Although significant improvements in pregnancy and live birth rates were observed with testicular sperm, the strength of findings is limited by availability and quality of evidence, both of which undermine recommendations for clinical practice. Standardised randomised controlled trials are needed to definitively determine whether the use of testicular sperm improves ISCI outcomes for men with high SDF. Until such evidence exists, ICSI after testicular sperm extraction or aspiration should not be routinely performed. Patient summary: Our review showed that for infertile men with a high level of DNA damage in their sperm, use of sperm extracted from the testicles may give better results than ejaculated sperm for a particular IVF (in vitro fertilisation) technique. However, there is a lack of high-quality data.
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| 8. |
- Lee, David M., et al.
(författare)
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Frailty and Sexual Health in Older European Men
- 2013
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Ingår i: Journals of Gerontology - Series B Psychological Sciences and Social Sciences. - : Oxford University Press (OUP). - 1079-5014. ; 68:7, s. 837-844
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Tidskriftsartikel (refereegranskat)abstract
- Background. There has been little research on how late-life frailty interrelates with sexual health. Our objective was to examine the association of frailty with sexual functioning and satisfaction among older men. Methods. The study population consisted of 1,504 men aged 60 to 79 years, participating in the European Male Aging Study. Self-report questionnaires measured overall sexual functioning, sexual function related distress, and erectile dysfunction. Frailty status was defined using a phenotype (FP) or index (FI). Associations between frailty and sexual function were explored using regression models. Results. Based on the frailty phenotype, 5% of men were classified as frail, and the mean frailty index was 0.18 (SD = 0.12). Frailty was associated with decreasing overall sexual functioning and increasing sexual function related distress in multiple linear regressions adjusted for age, smoking, alcohol consumption, living arrangements, comorbidities, and depression. Frailty was also associated with an increased odds of erectile dysfunction after adjustment for the same confounders: odds ratio = 1.99 (95% confidence interval = 1.14, 3.48) and 4.08 (95% confidence interval = 2.63, 6.36) for frailty phenotype and frailty index, respectively. Conclusions. Frailty was associated with impaired overall sexual functioning, sexual function related distress, and erectile dysfunction. Individuals assessed for frailty-related deficits may also benefit from an appraisal of sexual health as an important aspect of well-being and quality of life.
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| 9. |
- O'Connor, Daryl B, et al.
(författare)
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Assessment of sexual health in aging men in Europe: Development and validation of the European Male Ageing Study sexual function questionnaire
- 2008
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Ingår i: Journal of Sexual Medicine. - : Oxford University Press (OUP). - 1743-6109 .- 1743-6095. ; 5:6, s. 1374-1385
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Tidskriftsartikel (refereegranskat)abstract
- Introduction. Assessment of male sexual dysfunction has been the focus of substantial scientific effort. Less research has focused on the development of instruments for the measurement of sexual functioning in aging men. Aim. The aims of this study were: (i) to characterize the psychometric properties of a new brief, reliable, and valid measure of male sexual functioning for use in a large population survey of middle-aged and elderly European men; and (ii) specifically, to determine whether the new instrument, the European Male Ageing Study-sexual function questionnaire (EMAS-SFQ), discriminates between men with high and low levels of circulating testosterone (T) (total T, free T, and bioavailable T). Method. One thousand six hundred men aged 40-79 years completed the self-administered EMAS-SFQ, the Beck depression inventory, and provided a blood sample for assessment of sex hormones. Eighty-five men aged 35-74 years completed the EMAS-SFQ twice, 2 weeks apart to examine the test-retest reliability of the instrument. Main Outcome Measures. Scores on the EMAS-SFQ in relation to age and T levels. Results. Principal component analysis showed that the EMAS-SFQ had four distinct domains (overall sexual functioning [OSF], masturbation, sexual functioning-related distress, and change in sexual functioning). The instrument demonstrated excellent internal and test-retest reliability, as well as convergent, divergent, and discriminant validity. Men with the lowest levels of total, free, and bioavailable T reported lower OSF scores compared to men with the highest T levels. Conclusion. The EMAS-SFQ is a valid and reproducible instrument, sensitive to age and T levels. It should be suitable for the assessment of sexual health in population samples of men in epidemiological studies of aging.
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| 10. |
- O'Connor, Daryl B, et al.
(författare)
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The Relationships between Sex Hormones and Sexual Function in Middle-Aged and Older European Men.
- 2011
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Ingår i: The Journal of clinical endocrinology and metabolism. - : The Endocrine Society. - 1945-7197 .- 0021-972X. ; 96, s. 1577-1587
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Tidskriftsartikel (refereegranskat)abstract
- Context: Limited data are available exploring the associations between sex hormones, multiple domains of sexual functioning, and sexual function-related distress in nonpatient samples in Europe. Objectives: The aim of the study was to investigate the relationships between serum testosterone (T), estradiol (E2), and dihydrotestosterone (DHT) and sexual function in a multicenter population-based study of aging in men. Design: Using stratified random sampling, 2838 men aged 40-79 yr completed the European Male Ageing Study-Sexual Function Questionnaire and provided a blood sample for hormone measurements. T, E2, and DHT were measured using gas chromatography-mass spectrometry. Setting: We conducted a community-based population survey in eight European centers. Main Outcome Measures: Self-reported sexual function (overall sexual function, sexual function-related distress, erectile dysfunction, masturbation) was measured. Results: Total and free T, but not E2 or DHT, was associated with overall sexual function in middle-aged and older men. E2 was the only hormone associated with sexual function-related distress such that higher levels were related to greater distress. Free T levels were associated with masturbation frequency and erectile dysfunction in the fully adjusted models, such that higher T was associated with less dysfunction and greater frequency. Moreover, there was a T threshold for the relationship between total T, sexual function, and erectile dysfunction. At T concentrations of 8 nmol/liter or less, T was associated with worse sexual functioning, whereas at T levels over 8 nmol/liter, the relationship came to a plateau. Conclusions: These findings suggest that different hormonal mechanisms may regulate sexual functioning (T) vs. the psychological aspects (E2) of male sexual behavior. Moreover, there was a T threshold for overall sexual function such that at levels greater than 8 nmol/liter the relationship between T and sexual function did not become stronger.
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| 11. |
- Salonia, Andrea, et al.
(författare)
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SARS-CoV-2, Testosterone and frailty in males (PROTEGGIMI) : A multidimensional research project
- 2021
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Ingår i: Andrology. - : Wiley. - 2047-2927 .- 2047-2919. ; 9:1, s. 19-22
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Tidskriftsartikel (refereegranskat)abstract
- Preliminary published data depicts a much greater prevalence of malewith laboratory-confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) referred for intensive care unit admission and severe sequelae in several countries. In this context, males seem to not only be more susceptible to the infection compared to female subjects, at least in western countries, but their case fatality rate attributable to SARS-CoV-2 infection is also highest. Therefore, we may speculate that the different hormonal milieu could have a more profound pathophysiological role in association with SARS-CoV-2, with endogenous testosterone leaving men more prone to develop more serious complications related to the SARS-CoV-2 infection. Another option is that SARS-CoV-2 infection per se causes an acute stage of male hypogonadism, the depletion of androgenic action triggering serious or an even fatal course of the disease. Therefore, we stongly advocate the development of a prospective multidimensional andrological translational research project in men, which we called the PROTEGGIMI study. In this Opinion Article we will not only highlight novel research activity in this area but also invite other researchers and learned scientific societies to join us in our efforts to understand an important and very newly discovered gap in knowledge, which may have serious implications for the lives of millions of men.
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| 12. |
- Tajar, Abdelouahid, et al.
(författare)
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The Effect of Musculoskeletal Pain on Sexual Function in Middle-aged and Elderly European Men: Results from the European Male Ageing Study.
- 2011
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Ingår i: Journal of Rheumatology. - : The Journal of Rheumatology. - 0315-162X .- 1499-2752. ; 38, s. 370-377
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To determine whether musculoskeletal pain was associated with impaired sexual function in a population sample of middle-aged and older men. METHODS: The European Male Ageing Study (EMAS), a multicenter population-based study of men aged 40-79 years, was used to investigate this hypothesis. A questionnaire asked about the presence and duration of musculoskeletal pain, allowing subjects to be classified into 1 of 3 groups: those reporting chronic widespread pain (CWP), those reporting pain but not CWP ("some pain"), and those with no pain. Subjects completed a sexual function questionnaire from which 3 domains were considered: overall sexual functioning (OSF), sexual functioning-related distress (SFD), and change in sexual functioning compared to 1 year ago (CSF). RESULTS: A total of 3206 men [mean age 60 (SD 11) yrs] had complete data on pain status. Of these, 8.7% had CWP and 50.34% had "some pain." Pain was associated with lower OSF, and higher SFD and CSF scores. After adjustment for putative confounding factors, the associations became non-significant with OSF and CSF but persisted for SFD. Associations between pain status and some items within the sexual functioning domains, including frequency of sexual intercourse, frequency of morning erections, sexual desire, and orgasm were also significant, although these associations varied by pain status. CONCLUSION: Musculoskeletal pain is associated with several aspects of sexual functioning. These relationships differ depending on the extent of the pain (chronic or not) and are also largely confounded by other health-related factors, primarily depression.
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| 13. |
- Tharakan, Tharu, et al.
(författare)
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Does hormonal therapy improve sperm retrieval rates in men with non-obstructive azoospermia : a systematic review and meta-analysis
- 2022
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Ingår i: Human Reproduction Update. - : Oxford University Press (OUP). - 1355-4786 .- 1460-2369. ; 28:5, s. 609-628
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The beneficial effects of hormonal therapy in stimulating spermatogenesis in patients with non-obstructive azoospermia (NOA) and either normal gonadotrophins or hypergonadotropic hypogonadism prior to surgical sperm retrieval (SSR) is controversial. Although the European Association of Urology guidelines state that hormone stimulation is not recommended in routine clinical practice, a significant number of patients undergo empiric therapy prior to SSR. The success rate for SSR from microdissection testicular sperm extraction is only 40-60%, thus hormonal therapy could prove to be an effective adjunctive therapy to increase SSR rates. OBJECTIVE AND RATIONALE: The primary aim of this systematic review and meta-analysis was to compare the SSR rates in men with NOA (excluding those with hypogonadotropic hypogonadism) receiving hormone therapy compared to placebo or no treatment. The secondary objective was to compare the effects of hormonal therapy in normogonadotropic and hypergonadotropic NOA men. SEARCH METHODS: A literature search was performed using the Medline, Embase, Web of Science and Clinicaltrials.gov databases from 01 January 1946 to 17 September 2020. We included all studies where hormone status was confirmed. We excluded non-English language and animal studies. Heterogeneity was calculated using I2 statistics and risk of bias was assessed using Cochrane tools. We performed a meta-analysis on all the eligible controlled trials to determine whether hormone stimulation (irrespective of class) improved SSR rates and also whether this was affected by baseline hormone status (hypergonadotropic versus normogonadotropic NOA men). Sensitivity analyses were performed when indicated. OUTCOMES: A total of 3846 studies were screened and 22 studies were included with 1706 participants. A higher SSR rate in subjects pre-treated with hormonal therapy was observed (odds ratio (OR) 1.96, 95% CI: 1.08-3.56, P = 0.03) and this trend persisted when excluding a study containing only men with Klinefelter syndrome (OR 1.90, 95% CI: 1.03-3.51, P = 0.04). However, the subgroup analysis of baseline hormone status demonstrated a significant improvement only in normogonadotropic men (OR 2.13, 95% CI: 1.10-4.14, P = 0.02) and not in hypergonadotropic patients (OR 1.73, 95% CI: 0.44-6.77, P = 0.43). The literature was at moderate or severe risk of bias. WIDER IMPLICATIONS: This meta-analysis demonstrates that hormone therapy is not associated with improved SSR rates in hypergonadotropic hypogonadism. While hormone therapy improved SSR rates in eugonadal men with NOA, the quality of evidence was low with a moderate to high risk of bias. Therefore, hormone therapy should not be routinely used in men with NOA prior to SSR and large scale, prospective randomized controlled trials are needed to validate the meta-analysis findings.
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