Bone mineral density and HIV infection in climateric women

Orientadores: Lúcia Helena Simões da Costa Paiva, Ana Lúcia Ribeiro ValadaresTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências MédicasResumo: Os avanços científicos com a utilização da terapia antiretroviral altamente potente (TARV), proporcionaram significativo aumento na expectativa de vida das mulheres HIV soropositivas. Por outro lado, elas estão vivenciando afecções próprias do envelhecimento, como a osteoporose de etiologia provavelmente multifatorial. Objetivo: Avaliar a densidade mineral óssea e fatores associados em mulheres climatéricas HIV soropositivas. Sujeitos e Métodos: Realizado estudo de corte transversal com 273 mulheres HIV soropositivas e 264 mulheres HIV soronegativas de 40 a 60 anos de idade, acompanhadas em atendimento ambulatorial especializado. Foram avaliadas características clínicas, laboratoriais e densidade mineral óssea. Análise estatística: Foram utilizados os testes de Yates, qui-quadrado de Pearson, Mann-Whitney e análises de regressão múltipla de Poisson e regressão linear. Resultados: A média etária das mulheres HIV soropositivas foi 47,7 anos e das soronegativas 49,8 anos. As mulheres HIV soropositivas apresentavam IMC menor que 25Kg/m² (51,6%) e 59,3% estavam na pré ou perimenopausa enquanto as HIV soronegativas 29,3% tinham IMC menor que 25 kg/m² e 42,1% estavam na pré ou peri menopausa. A prevalência de baixa massa óssea em L1-L4 foi de 33,5% no grupo soropositivo e 33,2 % no grupo soronegativo (p>0.999). No colo do fêmur foi de 33,1% no grupo HIV soropositivo e 27,6 % no grupo soronegativo (p=0,266). A análise de regressão linear múltipla mostrou associação inversa entre DMO da coluna lombar e estar na pós menopausa, ser HIV soropositiva, FSH > 40 mUI/ml e direta com IMC >25 Kg/m² . Em relação a DMO no colo do fêmur houve uma associação inversa com estar na pós menopausa, cor branca e associação direta com maior paridade e IMC >25 Kg/m². Dentre as mulheres HIV soropositivas o tempo médio da infecção era de 9.9 anos, 92% usavam TARV, tempo médio de TARV era de 9,4 anos, tempo decorrido desde o diagnóstico foi em média 9,9 anos. Os fatores associados à baixa massa óssea em L1-L4 foram maior idade (p 2 (p=0,03), estar na pós menopausa (p 40 mUI/ml (p40 mUI/ml (p 0.999). Femoral neck was 33.1% in HIV-seropositive group and 27.6% in the seronegative group (p = 0.266). A stepwise multiple linear regression analysis showed an inverse association between lumbar spine BMD and being postmenopausal, be HIV seropositive, FSH> 40 mIU / ml and direct with BMI> 25 kg / m². In relation to BMD at the femoral neck there was an inverse association with being postmenopausal, white and direct association with higher parity, and BMI> 25 kg / m². Among the HIV-seropositive women the average time of infection was 9.9 years, 92% were using HAART, median time to ART was 9.4 years, time since diagnosis averaged 9.9 years. Factors associated with low bone mass in L1-L4 were older age (p 2 (p = 0.03), being postmenopausal (p 40 mIU / ml (p 40 mIU / ml (p <0.001). There was no association between low bone mass at the lumbar spine (L1-L4) and femoral neck variables associated directly with HIV. The analysis of multiple Poisson regression found an association between low BMD at L1-L4 and femoral neck only to be postmenopausal. Conclusion: There was no significant difference in BMD at the L1-L4 lumbar spine and femoral neck in women seropositive and seronegative climatic HIV. The prevalence of osteopenia / osteoporosis in menopausal women seropositive HIV receiving ART was 33.5% in L1-L4 and 33.1% at the femoral neck, while 33.2% were seronegative at L1-L4 and 27.6 % in the femoral neck. The main factor associated with low BMD were being menopausal and have lower BMI in HIV positive and negative women. HIV seropositive was associated with low BMD only in L1-L4DoutoradoFisiopatologia GinecológicaDoutora em Ciências da Saúd

Maternal complications following endoscopic surgeries in fetal Medicine

OBJETIVO: descrever as complicações maternas decorrentes dos procedimentos endoscópicos terapêuticos em Medicina fetal, realizados em um centro universitário no Brasil. MÉTODOS: estudo observacional retrospectivo que incluiu gestantes atendidas no período de Abril de 2007 a Maio de 2010. Esses casos foram submetidos aos seguintes procedimentos: ablação vascular placentária com laser (AVPL) por síndrome de transfusão feto-fetal (STFF) grave; oclusão traqueal fetal (OTF) e retirada de balão traqueal por via endoscópica por hérnia diafragmática congênita (HDC) grave e AVPL, com ou sem cauterização bipolar do cordão umbilical, por síndrome da perfusão arterial reversa (SPAR) em gêmeo acárdico. As principais variáveis descritas para cada condição clínica/tipo de cirurgia foram as complicações maternas e a sobrevida (alta do berçário) do neonato/lactente. RESULTADOS: cinquenta e seis gestantes foram submetidas a 70 procedimentos: STFF grave (34 pacientes; 34 cirurgias); HDC grave (16 pacientes; 30 cirurgias) e SPAR (6 pacientes; 6 cirurgias). Entre as 34 gestantes tratadas com AVPL por STFF, duas (2/34=5,9%) apresentaram perda de líquido amniótico para a cavidade peritoneal e sete (7/34=20,6%) tiveram abortamento após os procedimentos. A sobrevida de pelo menos um gêmeo foi de 64,7% (22/34). Entre as 30 intervenções realizadas para HDC, houve perda de líquido amniótico para a cavidade peritoneal materna em um caso (1/30=3,3%) e rotura prematura pré-termo de membranas após três (3/30=30%) fetoscopias para retirada do balão traqueal. A sobrevida com alta do berçário foi de 43,8% (7/16). Entre os seis casos de SPAR, houve sangramento materno para a cavidade peritoneal após uma cirurgia (1/6=16,7%) e a sobrevida com alta do berçário foi de 50% (3/6). CONCLUSÕES: em concordância com os dados disponíveis na literatura, em nosso centro, os benefícios relacionados às intervenções endoscópicas terapêuticas em casos de STFF, HDC e SPAR parecem superar os riscos de complicações maternas que, raramente, foram consideradas graves.PURPOSE: to describe the maternal complications due to therapeutic endoscopic procedures in fetal Medicine performed at an university center in Brazil. METHODS: retrospective observational study including patients treated from April 2007 to May 2010 who underwent laser ablation of placental vessels (LAPV) for severe twin-twin transfusion syndrome (TTTS); fetal tracheal occlusion (FETO) and endoscopic removal of tracheal balloon in cases of severe congenital diaphragmatic hernia (CDH); LAPV with or without bipolar coagulation of the umbilical cord in cases of twin reversed arterial perfusion (TRAP) sequence. The main variables described for each disease/type of surgery were maternal complications and neonatal survival (discharge from nursery). RESULTS: fifty-six patients underwent 70 procedures: Severe TTTS (34 patients; 34 surgeries); severe CDH (16 patients; 30 surgeries), and TRAP sequence (6 patients; 6 surgeries). Among 34 women who underwent LAPV for TTTS, two (2/34=5.9%) experienced amniotic fluid leakage to the peritoneal cavity and seven (7/34=20.6%) miscarried after the procedure. Survival of at least one twin was 64.7% (22/34). Among 30 interventions performed in cases of CDH, there was amniotic fluid leakage into the maternal peritoneal cavity in one patient (1/30=3.3%) and premature preterm rupture of membranes after three (3/30=30%) fetoscopies for removal of the tracheal balloon. Infant survival with discharge from nursery was 43.8% (7/16). Among six cases of TRAP sequence, there was bleeding into the peritoneal cavity after surgery in one patient (1/6=16.7%) and neonatal survival with discharge from nursery was 50% (3/6). CONCLUSIONS: in agreement with the available data in literature, at our center, the benefits related to therapeutic endoscopic interventions for TTTS, CDH and TRAP sequence seem to overcome the risks of maternal complications, which were rarely considered severe

Maternal complications following endoscopic surgeries in fetal Medicine

Descrever as complicações maternas decorrentes dos procedimentos endoscópicos terapêuticos em Medicina fetal, realizados em um centro universitário no Brasil. Estudo observacional retrospectivo que incluiu gestantes atendidas no período de Abril de 2007 a Maio de 2010. Esses casos foram submetidos aos seguintes procedimentos: ablação vascular placentária com laser (AVPL) por síndrome de transfusão feto-fetal (STFF) grave; oclusão traqueal fetal (OTF) e retirada de balão traqueal por via endoscópica por hérnia diafragmática congênita (HDC) grave e AVPL, com ou sem cauterização bipolar do cordão umbilical, por síndrome da perfusão arterial reversa (SPAR) em gêmeo acárdico. As principais variáveis descritas para cada condição clínica/tipo de cirurgia foram as complicações maternas e a sobrevida (alta do berçário) do neonato/lactente. Cinquenta e seis gestantes foram submetidas a 70 procedimentos: STFF grave (34 pacientes; 34 cirurgias); HDC grave (16 pacientes; 30 cirurgias) e SPAR (6 pacientes; 6 cirurgias). Entre as 34 gestantes tratadas com AVPL por STFF, duas (2/34=5,9%) apresentaram perda de líquido amniótico para a cavidade peritoneal e sete (7/34=20,6%) tiveram abortamento após os procedimentos. A sobrevida de pelo menos um gêmeo foi de 64,7% (22/34). Entre as 30 intervenções realizadas para HDC, houve perda de líquido amniótico para a cavidade peritoneal materna em um caso (1/30=3,3%) e rotura prematura pré-termo de membranas após três (3/30=30%) fetoscopias para retirada do balão traqueal. A sobrevida com alta do berçário foi de 43,8% (7/16). Entre os seis casos de SPAR, houve sangramento materno para a cavidade peritoneal após uma cirurgia (1/6=16,7%) e a sobrevida com alta do berçário foi de 50% (3/6). Em concordância com os dados disponíveis na literatura, em nosso centro, os benefícios relacionados às intervenções endoscópicas terapêuticas em casos de STFF, HDC e SPAR parecem superar os riscos de complicações maternas que, raramente, foram consideradas graves326260266To describe the maternal complications due to therapeutic endoscopic procedures in fetal Medicine performed at an university center in Brazil. Retrospective observational study including patients treated from April 2007 to May 2010 who underwent laser ablation of placental vessels (LAPV) for severe twin-twin transfusion syndrome (TTTS); fetal tracheal occlusion (FETO) and endoscopic removal of tracheal balloon in cases of severe congenital diaphragmatic hernia (CDH); LAPV with or without bipolar coagulation of the umbilical cord in cases of twin reversed arterial perfusion (TRAP) sequence. The main variables described for each disease/type of surgery were maternal complications and neonatal survival (discharge from nursery). Fifty-six patients underwent 70 procedures: Severe TTTS (34 patients; 34 surgeries); severe CDH (16 patients; 30 surgeries), and TRAP sequence (6 patients; 6 surgeries). Among 34 women who underwent LAPV for TTTS, two (2/34=5.9%) experienced amniotic fluid leakage to the peritoneal cavity and seven (7/34=20.6%) miscarried after the procedure. Survival of at least one twin was 64.7% (22/34). Among 30 interventions performed in cases of CDH, there was amniotic fluid leakage into the maternal peritoneal cavity in one patient (1/30=3.3%) and premature preterm rupture of membranes after three (3/30=30%) fetoscopies for removal of the tracheal balloon. Infant survival with discharge from nursery was 43.8% (7/16). Among six cases of TRAP sequence, there was bleeding into the peritoneal cavity after surgery in one patient (1/6=16.7%) and neonatal survival with discharge from nursery was 50% (3/6). In agreement with the available data in literature, at our center, the benefits related to therapeutic endoscopic interventions for TTTS, CDH and TRAP sequence seem to overcome the risks of maternal complications, which were rarely considered sever

Maternal complications following endoscopic surgeries in fetal Medicine

OBJETIVO: descrever as complicações maternas decorrentes dos procedimentos endoscópicos terapêuticos em Medicina fetal, realizados em um centro universitário no Brasil. MÉTODOS: estudo observacional retrospectivo que incluiu gestantes atendidas no período de Abril de 2007 a Maio de 2010. Esses casos foram submetidos aos seguintes procedimentos: ablação vascular placentária com laser (AVPL) por síndrome de transfusão feto-fetal (STFF) grave; oclusão traqueal fetal (OTF) e retirada de balão traqueal por via endoscópica por hérnia diafragmática congênita (HDC) grave e AVPL, com ou sem cauterização bipolar do cordão umbilical, por síndrome da perfusão arterial reversa (SPAR) em gêmeo acárdico. As principais variáveis descritas para cada condição clínica/tipo de cirurgia foram as complicações maternas e a sobrevida (alta do berçário) do neonato/lactente. RESULTADOS: cinquenta e seis gestantes foram submetidas a 70 procedimentos: STFF grave (34 pacientes; 34 cirurgias); HDC grave (16 pacientes; 30 cirurgias) e SPAR (6 pacientes; 6 cirurgias). Entre as 34 gestantes tratadas com AVPL por STFF, duas (2/34=5,9%) apresentaram perda de líquido amniótico para a cavidade peritoneal e sete (7/34=20,6%) tiveram abortamento após os procedimentos. A sobrevida de pelo menos um gêmeo foi de 64,7% (22/34). Entre as 30 intervenções realizadas para HDC, houve perda de líquido amniótico para a cavidade peritoneal materna em um caso (1/30=3,3%) e rotura prematura pré-termo de membranas após três (3/30=30%) fetoscopias para retirada do balão traqueal. A sobrevida com alta do berçário foi de 43,8% (7/16). Entre os seis casos de SPAR, houve sangramento materno para a cavidade peritoneal após uma cirurgia (1/6=16,7%) e a sobrevida com alta do berçário foi de 50% (3/6). CONCLUSÕES: em concordância com os dados disponíveis na literatura, em nosso centro, os benefícios relacionados às intervenções endoscópicas terapêuticas em casos de STFF, HDC e SPAR parecem superar os riscos de complicações maternas que, raramente, foram consideradas graves.PURPOSE: to describe the maternal complications due to therapeutic endoscopic procedures in fetal Medicine performed at an university center in Brazil. METHODS: retrospective observational study including patients treated from April 2007 to May 2010 who underwent laser ablation of placental vessels (LAPV) for severe twin-twin transfusion syndrome (TTTS); fetal tracheal occlusion (FETO) and endoscopic removal of tracheal balloon in cases of severe congenital diaphragmatic hernia (CDH); LAPV with or without bipolar coagulation of the umbilical cord in cases of twin reversed arterial perfusion (TRAP) sequence. The main variables described for each disease/type of surgery were maternal complications and neonatal survival (discharge from nursery). RESULTS: fifty-six patients underwent 70 procedures: Severe TTTS (34 patients; 34 surgeries); severe CDH (16 patients; 30 surgeries), and TRAP sequence (6 patients; 6 surgeries). Among 34 women who underwent LAPV for TTTS, two (2/34=5.9%) experienced amniotic fluid leakage to the peritoneal cavity and seven (7/34=20.6%) miscarried after the procedure. Survival of at least one twin was 64.7% (22/34). Among 30 interventions performed in cases of CDH, there was amniotic fluid leakage into the maternal peritoneal cavity in one patient (1/30=3.3%) and premature preterm rupture of membranes after three (3/30=30%) fetoscopies for removal of the tracheal balloon. Infant survival with discharge from nursery was 43.8% (7/16). Among six cases of TRAP sequence, there was bleeding into the peritoneal cavity after surgery in one patient (1/6=16.7%) and neonatal survival with discharge from nursery was 50% (3/6). CONCLUSIONS: in agreement with the available data in literature, at our center, the benefits related to therapeutic endoscopic interventions for TTTS, CDH and TRAP sequence seem to overcome the risks of maternal complications, which were rarely considered severe.32626026

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Ability To Follow Drug Treatment With Calcium And Vitamin D In Postmenopausal Women With Reduced Bone Mass.

The aim of this study was to evaluate the ability of women with reduced bone mass to follow calcium/vitamin D treatment in relation to prescribed regimen, dose, indication, mode of intake, and the associated factors. A cross-sectional study of postmenopausal women taking medication after bone mineral density diagnosis of osteopenia or osteoporosis was conducted using the MedTake questionnaire. A total of 186 patients attending a menopause clinic were studied. Sociodemographic characteristics, history of comorbid conditions, concomitant use of medication, length of medication use, and ability to follow treatment in relation to prescribed regimen, dose, indication, and mode of ingestion were assessed. The mean (SD) age of the women analyzed was 61.6 (8.21) years. The mean time since menopause was 16.8 years. Most women reported having difficulty reading, and 79% were white. The ability to follow treatment, evaluated using MedTake, was lower than 60% in most women. Taking the wrong dose was the most frequent error. The only factor associated with inadequate treatment was the use of concomitant medication (odds ratio, 2.32; 95% CI, 1.06-5.08). The ability to follow adjuvant calcium and vitamin D treatment for decreased bone mass is low and associated with concomitant use of medication.19989-9