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Dive into the research topics where María S. Vallejo is active.

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Featured researches published by María S. Vallejo.


Climacteric | 2013

Type II diabetes mellitus and menopause: a multinational study.

A. Monterrosa-Castro; Juan Enrique Blümel; K. Portela-Buelvas; Edward Mezones-Holguín; Germán Barón; Ascanio Bencosme; Zully Benítez; Luz M. Bravo; Andrés Calle; Peter Chedraui; Daniel Flores; María T. Espinoza; G. Gomez; José A. Hernández-Bueno; Fiorella Laribezcoa; Selva Lima; Mabel Martino; Desiree Mostajo; Eliana Ojeda; William Onatra; Hugo Sánchez; Daysi Navarro; Konstantinos Tserotas; María S. Vallejo; Silvina Witis; María C. Zúñiga

Abstract Background Type II diabetes mellitus causes metabolic changes that may lead to early menopause and worsen climacteric symptoms. Objectives To determine the risk factors for type II diabetes mellitus and assess the impact of this disease on the age of menopause and on climacteric symptoms. Methods A total of 6079 women aged between 40 and 59 years from 11 Latin American countries were requested to answer the Menopause Rating Scale and Goldberg Anxiety-Depression Scale. Results The prevalence of diabetes was 6.7%. Diabetes mellitus was associated with arterial hypertension (odds ratio (OR) 4.49; 95% confidence interval (CI) 3.47–5.31), the use of psychotropic drugs (OR 1.54; 95% CI 1.22–1.94), hormonal therapy (OR 1.46; 95% CI 1.11–1.92), ≥ 50 years of age (OR 1.48; 95% CI 1.17–1.86), overweight or obese (OR 1.47; 95% CI 1.15–1.89), and waist circumference ≥ 88 cm (OR 1.32; 95% CI 1.06–1.65). Factors associated with lower risk of diabetes were the use of hormonal contraceptives (OR 0.55; 95% CI 0.35–0.87), alcohol (OR 0.73; 95% CI 0.54–0.98) and living in cities > 2500 meters above sea level (OR 0.70; 95% CI 0.53–0.91) or with high temperatures (OR 0.67; 95% CI 0.51–0.88). In turn, diabetes tripled the risk of menopause in women under 45 years of age. Diabetes did not increase the risk of deterioration of quality of life due to climacteric symptoms. Conclusion Menopause does not increase the risk of type II diabetes mellitus. Diabetes is associated with early menopause in women under 45 years of age.


Climacteric | 2012

Menopausal symptoms appear before the menopause and persist 5 years beyond: a detailed analysis of a multinational study

Juan Enrique Blümel; Peter Chedraui; Germán Barón; Emma Belzares; Ascanio Bencosme; Andrés Calle; María T. Espinoza; Daniel Flores; G. Gomez; José A. Hernández-Bueno; Humberto Izaguirre; Patricia Leon-Leon; Selva Lima; Edward Mezones-Holguín; Alvaro Monterrosa; Desiree Mostajo; Daysi Navarro; Eliana Ojeda; William Onatra; Monique Royer; Edwin Soto; Konstantinos Tserotas; María S. Vallejo

Objective Few Latin American studies have described menopausal symptoms in detail by means of a standardized assessment tool. The objective of this study was to assess the prevalence and severity of menopausal symptoms and their impact over quality of life among mid-aged Latin American women. Method In this cross-sectional study, 8373 otherwise healthy women aged 40–59 years from 12 Latin American countries were asked to fill out the Menopause Rating Scale (MRS) and a questionnaire containing personal sociodemographic data. Menopause status (pre-, peri- and postmenopausal) was defined according to the criteria of the Stages of Reproductive Aging Workshop. Results Of all the studied women, 90.9% had at least one menopausal symptom (complaint) that they rated. Muscle and joint discomfort, physical and mental exhaustion and depressive mood were highly prevalent and rated as severe–very severe (scores of 3 and 4), at a higher rate than vasomotor symptoms (15.6%, 13.8% and 13.7% vs. 9.6%, respectively). Of premenopausal women (40–44 years), 77.0% reported at least one rated complaint, with 12.9% displaying MRS scores defined as severe (> 16). The latter rate increased to 26.4% in perimenopausal, 31.6% in early postmenopausal and 29.9% among late postmenopausal women. As measured with the MRS, the presence of hot flushes increased the risk of impairment of overall quality of life in both premenopausal (odds ratio 12.67; 95% confidence interval 9.53–16.83) and peri/postmenopausal women (odds ratio 9.37; 95% confidence interval 7.85–11.19). Conclusion In this large, mid-aged, female Latin American series, muscle/joint discomfort and psychological symptoms were the most prevalent and severely rated menopausal symptoms. The symptoms appear early in the premenopause, significantly impair quality of life and persist 5 years beyond the menopause.


Maturitas | 2015

Obesity and its relation to depressive symptoms and sedentary lifestyle in middle-aged women

Juan Enrique Blümel; Peter Chedraui; Sócrates Aedo; Juan Fica; Edward Mezones-Holguín; Germán Barón; Ascanio Bencosme; Zully Benítez; Luz M. Bravo; Andrés Calle; Daniel Flores; María T. Espinoza; G. Gomez; José A. Hernández-Bueno; Fiorella Laribezcoa; Mabel Martino; Selva Lima; Alvaro Monterrosa; Desiree Mostajo; Eliana Ojeda; William Onatra; Hugo Sánchez; Konstatinos Tserotas; María S. Vallejo; Silvina Witis; María C. Zúñiga

BACKGROUND The prevalence of obesity increases during female mid-life and although many factors have been identified, data from Latin America is lacking. OBJECTIVE To assess factors related to obesity among middle-aged women and determine the association with depressive symptoms, sedentary lifestyle and other factors. METHODS A total of 6079 women aged 40-59 years of 11 Latin American countries were asked to fill out the Goldberg Anxiety and Depression Scale, the Menopause Rating Scale, the Athens Insomnia Scale, the Pittsburgh Sleep Quality Index and a general questionnaire containing personal socio-demographic data, anthropometric measures and lifestyle information. Obesity was defined as a body mass index (BMI) ≥30 kg/m(2). RESULTS Obesity was observed in 18.5% and sedentary lifestyle in 63.9%. A 55.5% presented vasomotor symptoms, 12.2% had severe menopausal symptoms and 13.2% used hormone therapy for the menopause. Prevalence of depressive symptoms was 46.5% and anxiety 59.7%. Our logistic regression model found that significant factors associated to obesity included: arterial hypertension (OR: 1.87), depressive symptoms (OR: 1.57), sedentary lifestyle (OR: 1.50) diabetes mellitus (OR: 1.34), higher number of individuals living at home (OR: 1.31), sleep problems (OR:1.22), anxiety (OR: 1.21), having a stable partner (OR: 1.20), parity (OR: 1.16) and vasomotor symptoms (OR:1.14). A lower risk for obesity was found among women using hormonal contraceptives (OR: 0.69). CONCLUSION Obesity in middle-aged women is the consequence of the interaction of multiple factors. It was associated to hypertension, depressive symptoms, sedentary lifestyle, climacteric symptoms and other factors.


Maturitas | 2012

Is fibromyalgia part of the climacteric syndrome

Juan Enrique Blümel; Santiago Palacios; Deborah Legorreta; María S. Vallejo; Salvador Sarrá

Fibromyalgia syndrome (FMS) is a disorder usually affecting middle aged women, who complain of diffuse musculoskeletal aches, pains or stiffness associated with tiredness, anxiety and poor sleep. Neurotransmission disorders linked both to pain perception as well as mood, sleep and cognition modulation are involved in FMS etiopathogenesys. Treatments that may be effective to decrease pain and fatigue include tricyclic antidepressants, dual reuptake inhibitors of serotonin/noradrenalin and pregabalin. The climacteric syndrome is a set of symptoms caused by the decline of ovarian hormone levels, which alters brain neurotransmission and provokes musculoskeletal pains, mood disorders, poor sleep quality and hot flushes. The hormone therapy reverses those symptoms and its risks are marginal if womens own hormones are used through transdermal route. Some antidepressants may be useful for patients with climacteric symptoms. We have found it surprising the epidemiological, etiopathogenic, symptomatic and therapeutic similarity between FMS and climacteric that could lead us to hypothesize that FMS is a part of the climacteric syndrome. However, the existence of FMS non-climacteric patients points out that hormone deficit is not the only physiopathological mechanism involved in this syndromes etiopathogenesys. Nevertheless, it is likely that hormone disorders are involved in the symptoms genesis of most middle aged women with FMS. Keeping this in mind, we see the point in considering the use of HT in climacteric patients with FMS. Studies assessing the FMS clinical response to HT in a prospective manner and with the current diagnose criteria are still required.


Menopause | 2016

Sedentary lifestyle in middle-aged women is associated with severe menopausal symptoms and obesity

Juan Enrique Blümel; Juan Fica; Peter Chedraui; Edward Mezones-Holguín; María C. Zúñiga; Silvina Witis; María S. Vallejo; Konstantinos Tserotas; Hugo Sánchez; William Onatra; Eliana Ojeda; Desiree Mostajo; Alvaro Monterrosa; Selva Lima; Mabel Martino; José A. Hernández-Bueno; G. Gomez; María T. Espinoza; Daniel Flores; Andrés Calle; Luz M. Bravo; Zully Benítez; Ascanio Bencosme; Germán Barón; Sócrates Aedo

Objective:The aim of the study was to evaluate the association between sedentary lifestyle and the severity of menopausal symptoms and obesity in middle-aged women. Methods:The Menopause Rating Scale, the Goldberg Anxiety and Depression Scale, and the Athens Insomnia Scale were administered to 6,079 Latin American women aged 40 to 59 years. Sedentary lifestyle was defined as fewer than three weekly, 30-minute periods of physical activity. Results:Sedentary women had more severe menopausal symptoms (total Menopause Rating Scale score: 9.57 ± 6.71 vs 8.01 ± 6.27 points, P < 0.0001) and more depressive symptoms (Goldberg), anxiety (Goldberg), and insomnia (Athens Scale) compared with non-sedentary women. They also had greater mean waist circumference (86.2 ± 12.3 vs 84.3 ± 1.8 cm, P < 0.0001) and a higher prevalence of obesity (20.9% vs 14.3%, P < 0.0001). Logistic regression analysis showed that both obesity (odds ratio [OR] 1.52; 95% CI, 1.32-1.76) and severe menopausal symptoms (OR 1.28; 95% CI, 1.06-1.53), including insomnia and depressive mood, were positively associated with a sedentary lifestyle. Having a stable partner (OR 0.85; 95% CI, 0.76-0.96), using hormone therapy (OR 0.75; 95% CI, 0.64-0.87) and having a higher educational level (OR 0.66; 95% CI, 0.60-0.74) were negatively related to sedentary lifestyle. Conclusions:There was a high prevalence of sedentary lifestyle in this middle-aged Latin American female sample which was associated with more severe menopausal symptoms and obesity.


Maturitas | 2013

Menopause could be involved in the pathogenesis of muscle and joint aches in mid-aged women

Juan Enrique Blümel; Peter Chedraui; Germán Barón; Emma Belzares; Ascanio Bencosme; Andrés Calle; María T. Espinoza; Daniel Flores; G. Gomez; José A. Hernández-Bueno; Humberto Izaguirre; Patricia Leon-Leon; Selva Lima; Edward Mezones-Holguín; Alvaro Monterrosa; Desiree Mostajo; Daysi Navarro; Eliana Ojeda; William Onatra; Monique Royer; Edwin Soto; Konstantinos Tserotas; María S. Vallejo

BACKGROUND Muscle and joint aches (MJA) are frequently observed among menopausal women. They impair quality of life and are a burden to the healthcare system. OBJECTIVE To analyze the relation between MJA and several variables related to the menopause. METHODS In this cross-sectional study, 8373 healthy women aged 40-59 years, accompanying patients to healthcare centers in 18 cities of 12 Latin American countries, were asked to fill out the Menopause Rating Scale (MRS) and a questionnaire containing personal data. RESULTS Mean age of the whole sample was 49.1±5.7 years, 48.6% were postmenopausal and 14.7% used hormone therapy (HT). A 63.0% of them presented MJA, with a 15.6% being scored as severe to very severe according to the MRS (scores 3 or 4). Logistic regression model determined that vasomotor symptoms (OR: 6.16; 95% CI, 5.25-7.24), premature menopause (OR: 1.58; 95% CI, 1.02-2.45), postmenopausal status (OR: 1.43; 95% CI, 1.20-1.69), psychiatric consultation (OR: 1.93; 95% CI, 1.60-2.32) and the use of psychotropic drugs (OR: 1.35; 95% CI, 1.08-1.69) were significantly related to the presence of severe-very severe MJA. Other significant variables included: age, tobacco consumption and lower education. Self perception of healthiness (OR: 0.49; 95% CI, 0.41-0.59), private healthcare access (OR: 0.77; 95% CI, 0.67-0.88) and HT use (OR: 0.75; 95% CI, 0.62-0.91) were significantly related to a lower risk for the presence of severe-very severe MJA. CONCLUSION In this large mid-aged sample the prevalence of MJA was high, which was significantly associated to menopausal variables, especially vasomotor symptoms. This association may suggest a potential role of mid-life female hormonal changes in the pathogenesis of MJA.


Menopause | 2012

Optimal waist circumference cutoff value for defining the metabolic syndrome in postmenopausal Latin American women.

Juan Enrique Blümel; Deborah Legorreta; Peter Chedraui; Félix Ayala; Ascanio Bencosme; Diego Lange; María T. Espinoza; G. Gomez; Elena Grandia; Humberto Izaguirre; Valentin Manriquez; Mabel Martino; Daysi Navarro; Eliana Ojeda; William Onatra; Estela Pozzo; M. Prada; Monique Royer; Javier Saavedra; Fabiana Sayegh; Konstantinos Tserotas; María S. Vallejo; Cristina Zuñiga

ObjectiveThe aim of this study was to determine an optimal waist circumference (WC) cutoff value for defining the metabolic syndrome (METS) in postmenopausal Latin American women. MethodsA total of 3,965 postmenopausal women (age, 45-64 y), with self-reported good health, attending routine consultation at 12 gynecological centers in major Latin American cities were included in this cross-sectional study. Modified guidelines of the US National Cholesterol Education Program, Adult Treatment Panel III were used to assess METS risk factors. Receiver operator characteristic curve analysis was used to obtain an optimal WC cutoff value best predicting at least two other METS components. Optimal cutoff values were calculated by plotting the true-positive rate (sensitivity) against the false-positive rate (1 − specificity). In addition, total accuracy, distance to receiver operator characteristic curve, and the Youden Index were calculated. ResultsOf the participants, 51.6% (n = 2,047) were identified as having two or more nonadipose METS risk components (excluding a positive WC component). These women were older, had more years since menopause onset, used hormone therapy less frequently, and had higher body mass indices than women with fewer metabolic risk factors. The optimal WC cutoff value best predicting at least two other METS components was determined to be 88 cm, equal to that defined by the Adult Treatment Panel III. ConclusionsA WC cutoff value of 88 cm is optimal for defining METS in this postmenopausal Latin American series.


Climacteric | 2014

A multicentric study regarding the use of hormone therapy during female mid-age (REDLINC VI).

Juan Enrique Blümel; Peter Chedraui; Germán Barón; Zully Benítez; Daniel Flores; María T. Espinoza; G. Gomez; E. González; L. Hernández; Selva Lima; Mabel Martino; A. Montaño; Alvaro Monterrosa; Desiree Mostajo; Eliana Ojeda; William Onatra; C. Robles; J. Saavedra; Hugo Sánchez; Konstantinos Tserotas; María S. Vallejo; C. Vallejo

Abstract Background Menopausal hormone therapy (HT) has shown benefits for women; however, associated drawbacks (i.e. risks, costs, fears) have currently determined its low use. Objective To determine the prevalence of current HT use among mid-aged women and describe the characteristics of those who have never used, have abandoned or are currently using HT. In addition, reasons for not using HT were analyzed. Method This was a cross-sectional study that analyzed a total of 6731 otherwise healthy women (45–59 years old) of 15 cities in 11 Latin American countries. Participants were requested to fill out the Menopause Rating Scale (MRS) and a questionnaire containing sociodemographic data and items regarding the menopause and HT use. Results The prevalence of current HT use was 12.5%. Oral HT (43.7%) was the most frequently used type of HT, followed by transdermal types (17.7%). The main factors related to the current use of HT included: positive perceptions regarding HT (odds ratio (OR) 11.53, 95% confidence interval (CI) 9.41–14.13), being postmenopausal (OR 3.47, 95% CI 2.75–4.36) and having a better socioeconomic level. A total of 48.8% of surveyed women had used HT in the past, but abandoned it due to symptom improvement or being unconcerned; fear of cancer or any other secondary effects were also reported but in less than 10%. Among women who had never used HT, 28% reported the lack of medical prescription as the main reason, followed by the absence of symptoms (27.8%). Among those reporting lack of prescription as the main reason for not using HT, 30.6% currently had severe menopausal symptoms (total MRS score > 16); 19.5% of women were using alternative ‘natural’ therapies, with 35.1% of them displaying severe menopausal symptoms as compared to a 22.5% observed among current HT users. Conclusion The use of HT has not regained the rates observed a decade ago. Positive perceptions regarding HT were related to a higher use. Lack of medical prescription was the main reason for not using HT among non-users, many of whom were currently displaying severe menopausal symptoms.


Menopause | 2017

Association between anxiety and severe quality-of-life impairment in postmenopausal women: analysis of a multicenter Latin American cross-sectional study

Jorge L. Núñez-pizarro; Alejandro González-luna; Edward Mezones-Holguín; Juan Enrique Blümel; Germán Barón; Ascanio Bencosme; Zully Benítez; Luz M. Bravo; Andrés Calle; Daniel Flores; María T. Espinoza; G. Gomez; José A. Hernández-Bueno; Mabel Martino; Selva Lima; Alvaro Monterrosa; Desiree Mostajo; Eliana Ojeda; William Onatra; Hugo Sánchez; Konstantinos Tserotas; María S. Vallejo; Silvina Witis; María C. Zúñiga; Peter Chedraui

Objective: To evaluate associations between anxiety and severe impairment of quality of life (QoL) in Latin American postmenopausal women. Methods: This was a secondary analysis of a multicenter cross-sectional study among postmenopausal women aged 40 to 59 from 11 Latin American countries. We evaluated anxiety (The Goldberg Depression and Anxiety Scale), and QoL (Menopause Rating Scale [MRS]), and included sociodemographic, clinical, lifestyle, and anthropometric variables in the analysis. Poisson family generalized linear models with robust standard errors were used to estimate prevalence ratios (PRs) and 95% CIs. There were two adjusted models: a statistical model that included variables associated with the outcomes in bivariate analyses, and an epidemiologic model that included potentially confounding variables from literature review. Results: Data from 3,503 women were included; 61.9% had anxiety (Goldberg). Severe QoL impairment (total MRS score ≥17) was present in 13.7% of women, as well as severe symptoms (MRS subscales): urogenital (25.5%), psychological (18.5%), and somatic (4.5%). Anxiety was independently associated with severe QoL impairment and severe symptoms in the epidemiological (MRS total score: PR 3.6, 95% CI, 2.6-5.0; somatic: 5.1, 95% CI, 2.6-10.1; psychological: 2.8, 95% CI, 2.2-3.6; and urogenital: 1.4, 95% CI, 1.2-1.6) and the statistical model (MRS total score: PR 3.5, 95% CI, 2.6-4.9; somatic: 5.0, 95% CI, 2.5-9.9; psychological: 2.9, 95% CI, 2.2-3.7; and urogenital: 1.4; 95% CI, 1.2-1.6). Conclusions: In this postmenopausal Latin American sample, anxiety was independently associated with severe QoL impairment. Hence, screening for anxiety in this population is important.


Maturitas | 2016

Personal and professional use of menopausal hormone therapy among gynecologists: A multinational study (REDLINC VII)

Juan Enrique Blümel; Silvina Witis; María S. Vallejo; Konstantino Tserotas; Hugo Sánchez; Carlos Salinas; Javier Saavedra; José A. Rojas; William Onatra; Eliana Ojeda; Desiree Mostajo; Flory Morera; Alvaro Monterrosa; Armando Montaño; Nelva Meruvia; Mabel Martino; Jaime Martínez; Selva Lima; Erik González; G. Gomez; María T. Espinoza; Olivia Castillo; Blanca Campostrini; Andrés Calle; Gerardo Broutin; Ascanio Bencosme; Arteaga E; Félix Ayala; Peter Chedraui

BACKGROUND Previously, the REDLINC VI study showed that the main reason for the low use of menopausal hormone therapy (MHT) was its low rate of prescription by doctors. OBJECTIVE To determine the use of MHT and perceived related risks among gynecologists. METHODS A self-administered and anonymous questionnaire was delivered to certified gynecologists in 11 Latin American countries. RESULTS A total of 2154 gynecologists were contacted, of whom 85.3% responded to the survey (n = 1837). Mean age was 48.1 ± 11.4 years; 55.5% were male, 20.3% were faculty members and 85% had a partner. Overall, 85.4% of gynecologists responded that they would use MHT if they had menopausal symptoms (81.8% in the case of female gynecologists) or prescribe it to their partner (88.2% in the case of male gynecologists; p < 0.001). Perceived risk related to MHT use (on a scale from 0 to 10) was higher among female than among male gynecologists (4.06 ± 2.09 vs. 3.83 ± 2.11, p < 0.02). The top two perceived reported risks were thromboembolism (women 33.6% vs. men 41.4%, p < 0.009) and breast cancer (women 38.5% vs. men 33.9%, p < 0.03). Overall, gynecologists reported prescribing MHT to 48.9% of their symptomatic patients (women 47.3% vs. men 50.2%, p < 0.03) and 86.8% currently prescribed non-hormonal remedies and 83.8% alternative therapies for the management of the menopause. Gynecologists who were older and academic professionals prescribed MHT more often. CONCLUSION Although this Latin American survey showed that gynecologists are mostly supporters of MHT use (for themselves or their partners), this is not necessarily reflected in their clinical practice.

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Peter Chedraui

Catholic University of Santiago de Guayaquil

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William Onatra

National University of Colombia

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Daniel Flores

Diego Portales University

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Edward Mezones-Holguín

Universidad Peruana de Ciencias Aplicadas

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