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1.
Int J Gynaecol Obstet ; 165(3): 1268-1276, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38282483

RESUMO

OBJECTIVE: To determine whether clinical outcomes among clients undergoing medical abortion after 12 weeks' gestation differ by provider cadre. METHODS: Randomized controlled trial conducted among eligible clients seeking abortion between 13 and 20 weeks' gestation. Participants seeking in-facility abortion were randomized to receive care from a mid-level provider (nurse/midwife) or physician. The primary outcome was median time to expulsion with non-inferiority margin of -1.5 h between provider groups. Quantile median regression models assessed non-inferiority. Secondary outcomes included retained placenta, complications, and patient acceptability. RESULTS: After randomization and eligibility assessment by the provider, 171 women participated in the study: 81 in the physician group and 90 in the mid-level provider group. Their average age was 24 years, the mean gestational age was 16 weeks, and 65% were nulliparous in both groups. The median time to expulsion did not differ significantly, being 8.1 h for the mid-level group and 6.6 h for the physician group. The adjusted median difference was 0.8 h (95% confidence interval [CI] -1.15 to 2.66), within the non-inferiority margin. Retained placenta occurred similarly: 30.0% (n = 24) of the physician group and 20.5% (n = 18) of the mid-level provider group (adjusted risk difference [ARD] 7.6%, 95% CI -2.81 to 18.06). Complications occurred in 7% of cases, including 5.0% (n = 4) of patients in the physician group and 8.9% (n = 8) in the mid-level provider group (ARD -4.7%, 95% CI -12.43 to 3.12). Patient acceptability did not differ by group. CONCLUSIONS: Training mid-level providers to provide abortion services after 12 weeks' gestation independently of physicians is feasible and may result in comparable clinical outcomes.


Assuntos
Aborto Induzido , Humanos , Feminino , Gravidez , Etiópia , Aborto Induzido/métodos , Adulto , Adulto Jovem , Tocologia , Idade Gestacional , Médicos , Enfermeiros Obstétricos , Segundo Trimestre da Gravidez
2.
Int J Gynaecol Obstet ; 163(2): 651-659, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37341207

RESUMO

OBJECTIVE: To determine how many times Ipas manual vacuum aspiration (MVA) instruments are reused, for what reasons, when the instruments are replaced and/or discarded, and what the barriers are to replacing them. METHODS: We conducted a mixed-methods cross-sectional study of health care providers who provide MVA services and key stakeholders in the supply chain to understand reuse and replacement of Ipas MVA aspirators and cannulae. Qualitative interviews focused on procurement and replacement of Ipas MVA instruments. RESULTS: The authors interviewed 352 health care providers from nine countries from 2019 to 2021. Providers reported reusing MVA instruments an average of 34.4 times (standard deviation, 45). The reuse averages ranged from one time (Democratic Republic of the Congo) to 500 times (India), with figures varying between providers within the same country. Instrument malfunctioning rather than a specific number of uses drove reuse and subsequent replacement. The decision to replace was most commonly made by the provider during use. Half of the providers said that they knew of no issues with the supply chain, and 85% said they were always able to replace Ipas MVA instruments when needed. CONCLUSION: Tracking reuse of MVA instruments was uncommon at participating providers' health facilities. Providers' estimates revealed great variability in reuse frequency and tracking procedures.


Assuntos
Aborto Induzido , Cânula , Reutilização de Equipamento , Curetagem a Vácuo , Feminino , Humanos , Gravidez , Aborto Induzido/métodos , Estudos Transversais , Pessoal de Saúde
3.
BMJ Sex Reprod Health ; 49(4): 300-307, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-36894309

RESUMO

BACKGROUND: To determine whether clinical outcomes differ among women accessing a combined medical abortion regimen from a health clinic when compared with those accessing it from a pharmacy. METHODS: We conducted a multicentre, prospective, comparative, non-inferiority study of participants aged ≥15 years seeking medical abortion from five clinics and five adjacent pharmacy clusters in three provinces of Cambodia. Participants were recruited in-person at the point of purchase (clinic or pharmacy). Follow-up for self-reported pill use, acceptability, and clinical outcomes occurred by telephone at days 10 and 30 after mifepristone administration. RESULTS: Over 10 months, we enrolled 2083 women with 1847 providing outcome data: 937 from clinics and 910 from pharmacies. Most were early in their pregnancy (mean gestational age of 6.3 and 6.1 weeks, respectively) and almost all took the pills correctly (98% and 96%,). Additional treatment needed to complete the abortion was non-inferior for the pharmacy group (9.3%) compared with the clinic group (12.7%). More from the clinic group received additional care from a provider, such as antibiotics or diagnostics tests, than those from the pharmacy group (11.5% and 3.2%,), and one ectopic pregnancy (pharmacy group) was successfully treated. Most said they felt prepared for what happened after taking the pills (90.9% and 81.3%, respectively, p=0.273). CONCLUSIONS: Self-use of a combined medical abortion product resulted in comparable clinical outcomes as use following a clinical visit, consistent with existing literature on its safety and efficacy. Registration and availability of medical abortion as an over-the-counter product would likely increase women's access to safe abortion.


Assuntos
Aborto Induzido , Misoprostol , Gravidez , Feminino , Humanos , Misoprostol/uso terapêutico , Estudos Prospectivos , Aborto Induzido/métodos , Mifepristona/uso terapêutico , Instituições de Assistência Ambulatorial
4.
Contraception ; 101(1): 46-52, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31655069

RESUMO

OBJECTIVES: As an important next step in developing an over-the-counter (OTC) misoprostol-mifepristone product, this study aims to assess the comprehension of a medical abortion label. STUDY DESIGN: We conducted a pilot study utilizing convenience sampling to enroll women in rural and urban communities at four sites in two South African provinces. Trained, female recruiters prescreened and consented potential participants. Included women were aged 16-45 with some literacy (assessed by Rapid Estimate of Adult Literacy in Medicine). Exclusion criteria were having ever used or assisted someone with a medical abortion. Demographic data were collected after enrolment. We gave women time to read the prototype label, then asked a series of 35 questions to assess key concepts for correct use of the drug. For all questions but the indication, women could refer to the label while answering. We used descriptive, chi-square and regression analyses to assess comprehension of concepts. RESULTS: 100 women aged 16-45 years participated. Most reported prior sexual intercourse (91%), pregnancy (75%), and prior contraceptive use (male condom, 45%). Messages clear to participants (>90%) regardless of literacy were: when to consult a doctor before use (history of anemia or ectopic pregnancy), to respect the mifepristone- misoprostol interval, when to seek medical attention (heavy, prolonged or no bleeding) and that fertility returns quickly after abortion. The average scores were moderate for comprehension of all medical abortion label comprehension concepts: 79% for questions about the indication of the product; 73% for assessment of appropriate gestational age; 76% for screening out ectopic pregnancy; 80% for identifying contraindications to the medicines; 69% for instructions on use; 76% for when and for what conditions to seek medical care; and 60% for how to follow-up after abortion with a pregnancy test. Questions with lowest comprehension regarded medication timing, where women with higher literacy were significantly more likely to understand the label than among lower literacy levels. CONCLUSIONS: Our prototype over-the-counter label for a combined mifepristone-misoprostol product for medical abortion in early pregnancy was moderately understandable to participants. Comprehension scores were largely dependent on literacy levels. To demonstrate an understanding of at least 80% for key concepts, the prototype label for a combined medical abortion product requires revision.


Assuntos
Abortivos/administração & dosagem , Rotulagem de Medicamentos/normas , Letramento em Saúde/estatística & dados numéricos , Mifepristona/administração & dosagem , Misoprostol/administração & dosagem , Abortivos/efeitos adversos , Adolescente , Adulto , Quimioterapia Combinada , Feminino , Humanos , Pessoa de Meia-Idade , Mifepristona/efeitos adversos , Misoprostol/efeitos adversos , Ensaios Clínicos Controlados não Aleatórios como Assunto , Projetos Piloto , Gravidez , África do Sul , Adulto Jovem
5.
Contraception ; 99(2): 77-86, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30444970

RESUMO

OBJECTIVE: To describe the efficacy, safety, and acceptability of medical abortion in the late first trimester. STUDY DESIGN: We searched PubMed and Cochrane databases for articles in any language that examined the success of medical abortion at gestational ages (>63 to≤84 days gestation). We sought articles that compared: medical abortion with surgical abortion at this gestational age, combination mifepristone and misoprostol and/or misoprostol alone); different dosages of misoprostol; different routes of misoprostol administration; frequency of dosing; and location of medical abortion (in health care facility vs. outpatient management). Our primary outcome was complete abortion. Data was independently abstracted by two authors, graded for evidence quality, and assessed for risk of bias. RESULTS: The search strategy returned 3384 articles, nine of which met inclusion criteria. Medical abortion, as compared with surgical abortion, was effective in the late first trimester (94.6% versus 97.9% complete abortion). A combined regimen of mifepristone and misoprostol was significantly more effective than misoprostol alone (90.4 versus 81.6% complete abortion). Complete abortion rates for all regimens investigated ranged from 78.6% to 94.6%. Success rates were higher with repeat dosing of misoprostol both in combination regimens and alone, and with vaginal compared with oral administration for repeat dosing. CONCLUSION: A limited body of evidence indicates a range of efficacy of medical abortion in the late first trimester and highlights the need for well-designed trials in this gestational age range. IMPLICATIONS: This review highlights the need for research focused on the late first trimester to strengthen the body of evidence. The available evidence is limited but offers reassurance that adverse events are rare for later first trimester abortion. Importantly, new research demonstrates that efficacy remains unchanged in the 10th gestational week regardless of whether the medication is taken in a facility or at a woman's home.


Assuntos
Abortivos/administração & dosagem , Aborto Induzido/métodos , Primeiro Trimestre da Gravidez , Feminino , Humanos , Gravidez
6.
Hum Vaccin Immunother ; 14(7): 1599-1609, 2018 07 03.
Artigo em Inglês | MEDLINE | ID: mdl-29617183

RESUMO

Vaccine acceptance depends on public trust and confidence in the safety and efficacy of vaccines and immunization, the health system, healthcare professionals and the wider vaccine research community. This systematic review analyses the current breadth and depth of vaccine research literature that explicitly refers to the concept of trust within their stated aims or research questions. After duplicates were removed, 19,643 articles were screened by title and abstract. Of these 2,779 were screened by full text, 35 of which were included in the final analysis. These studies examined a range of trust relationships as they pertain to vaccination, including trust in healthcare professionals, the health system, the government, and friends and family members. Three studies examined generalized trust. Findings indicated that trust is often referred to implicitly (19/35), rather than explicitly examined in the context of a formal definition or discussion of the existing literature on trust in a health context. Within the quantitative research analysed, trust was commonly measured with a single-item measure (9/25). Only two studies used validated multi-item measures of trust. Three studies examined changes in trust, either following an intervention or over the course of a pandemic. The findings of this review indicate a disconnect between the current vaccine hesitancy research and the wider health-related trust literature, a dearth in research on trust in low and middle-income settings, a need for studies on how trust levels change over time and investigations on how resilience to trust-eroding information can be built into a trustworthy health system.


Assuntos
Aceitação pelo Paciente de Cuidados de Saúde , Confiança , Vacinação/psicologia , Comunicação , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Pessoal de Saúde , Humanos , Masculino , Gravidez , Recusa de Vacinação/psicologia , Recusa de Vacinação/estatística & dados numéricos , Vacinas/administração & dosagem
7.
JMIR Mhealth Uhealth ; 5(12): e174, 2017 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-29242175

RESUMO

BACKGROUND: Abortions are restricted in Bangladesh, but menstrual regulation is an approved alternative, defined as a procedure of regulating the menstrual cycle when menstruation is absent for a short duration. Use of contraception after menstrual regulation can reduce subsequent unintended pregnancy, but in Bangladesh, the contraceptive method mix is dominated by short-term methods, which have higher discontinuation and failure rates. Mobile phones are a channel via which menstrual regulation clients could be offered contraceptive support after leaving the clinic. OBJECTIVE: This study aimed to support the development of a mobile phone intervention to support postmenstrual regulation family planning use in Bangladesh. It explored what family planning information women want to receive after having a menstrual regulation procedure, whether they would like to receive this information via their mobile phone, and if so, what their preferences are for the way in which it is delivered. METHODS: We conducted participatory interviews with 24 menstrual regulation clients in Dhaka and Sylhet divisions in Bangladesh. Women were recruited from facilities in urban and peri-urban areas, which included public sector clinics supported by Ipas, an international nongovernmental organization (NGO), and NGO clinics run by Marie Stopes. Main themes covered in the interviews were factors affecting the use of contraception, what information and support women want after their menstrual regulation procedure, how respondents would prefer to receive information about contraception, and other key issues for mobile health (mHealth) interventions, such as language and privacy. As part of the in-depth interviews, women were shown and played 6 different messages about contraception on the research assistant's phone, which they were given to operate, and were then asked to give feedback. RESULTS: Women were open to both receiving messages about family planning methods on their mobile phones and talking to a counselor about family planning methods over the phone after their menstrual regulation. Women most commonly wanted information about the contraceptive method they were currently using and wanted this information to be tailored to their particular needs. Women preferred voice messages to text and liked the interactive voice message format. When asked to repeat and identify the main points of the messages, women demonstrated good understanding of the content. Women did not seem too concerned with privacy or with others reading the messages and welcomed including their husbands in speaking to a counselor. CONCLUSIONS: This study found that menstrual regulation clients are very interested in receiving information on their phones to support family planning use and wanted more information about the method of contraception they were using. Participatory voicemail was the preferred modality.

8.
Vaccine ; 33(34): 4180-90, 2015 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-25896377

RESUMO

UNLABELLED: The purpose of this systematic review is to identify, describe and assess the potential effectiveness of strategies to respond to issues of vaccine hesitancy that have been implemented and evaluated across diverse global contexts. METHODS: A systematic review of peer reviewed (January 2007-October 2013) and grey literature (up to October 2013) was conducted using a broad search strategy, built to capture multiple dimensions of public trust, confidence and hesitancy concerning vaccines. This search strategy was applied and adapted across several databases and organizational websites. Descriptive analyses were undertaken for 166 (peer reviewed) and 15 (grey literature) evaluation studies. In addition, the quality of evidence relating to a series of PICO (population, intervention, comparison/control, outcomes) questions defined by the SAGE Working Group on Vaccine Hesitancy (WG) was assessed using Grading of Recommendations Assessment, Development and Evaluation (GRADE) criteria; data were analyzed using Review Manager. RESULTS: Across the literature, few strategies to address vaccine hesitancy were found to have been evaluated for impact on either vaccination uptake and/or changes in knowledge, awareness or attitude (only 14% of peer reviewed and 25% of grey literature). The majority of evaluation studies were based in the Americas and primarily focused on influenza, human papillomavirus (HPV) and childhood vaccines. In low- and middle-income regions, the focus was on diphtheria, tetanus and pertussis, and polio. Across all regions, most interventions were multi-component and the majority of strategies focused on raising knowledge and awareness. Thirteen relevant studies were used for the GRADE assessment that indicated evidence of moderate quality for the use of social mobilization, mass media, communication tool-based training for health-care workers, non-financial incentives and reminder/recall-based interventions. Overall, our results showed that multicomponent and dialogue-based interventions were most effective. However, given the complexity of vaccine hesitancy and the limited evidence available on how it can be addressed, identified strategies should be carefully tailored according to the target population, their reasons for hesitancy, and the specific context.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Aceitação pelo Paciente de Cuidados de Saúde , Vacinas , Comunicação , Pessoal de Saúde/educação , Humanos , Cooperação do Paciente , Recusa do Paciente ao Tratamento , Vacinação , Organização Mundial da Saúde
9.
Vaccine ; 32(19): 2150-9, 2014 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-24598724

RESUMO

Vaccine "hesitancy" is an emerging term in the literature and discourse on vaccine decision-making and determinants of vaccine acceptance. It recognizes a continuum between the domains of vaccine acceptance and vaccine refusal and de-polarizes previous characterization of individuals and groups as either anti-vaccine or pro-vaccine. The primary aims of this systematic review are to: 1) identify research on vaccine hesitancy; 2) identify determinants of vaccine hesitancy in different settings including its context-specific causes, its expression and its impact; and 3) inform the development of a model for assessing determinants of vaccine hesitancy in different settings as proposed by the Strategic Advisory Group of Experts Working Group (SAGE WG) for dealing with vaccine hesitancy. A broad search strategy, built to capture multiple dimensions of public trust, confidence and hesitancy around vaccines, was applied across multiple databases. Peer-reviewed studies were selected for inclusion if they focused on childhood vaccines [≤ 7 years of age], used multivariate analyses, and were published between January 2007 and November 2012. Our results show a variety of factors as being associated with vaccine hesitancy but they do not allow for a complete classification and confirmation of their independent and relative strength of influence. Determinants of vaccine hesitancy are complex and context-specific - varying across time, place and vaccines.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Vacinação/psicologia , Criança , Pré-Escolar , Tomada de Decisões , Humanos , Lactente , Vacinas
10.
Lancet Infect Dis ; 13(7): 606-13, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23676442

RESUMO

BACKGROUND: The intensity, spread, and effects of public opinion about vaccines are growing as new modes of communication speed up information sharing, contributing to vaccine hesitancy, refusals, and disease outbreaks. We aimed to develop a new application of existing surveillance systems to detect and characterise early signs of vaccine issues. We also aimed to develop a typology of concerns and a way to assess the priority of each concern. METHODS: Following preliminary research by The Vaccine Confidence Project, media reports (eg, online articles, blogs, government reports) were obtained using the HealthMap automated data collection system, adapted to monitor online reports about vaccines, vaccination programmes, and vaccine-preventable diseases. Any reports that did not meet the inclusion criteria--any reference to a human vaccine or vaccination campaign or programme that was accessible online--were removed from analysis. Reports were manually analysed for content and categorised by concerns, vaccine, disease, location, and source of report, and overall positive or negative sentiment towards vaccines. They were then given a priority level depending on the seriousness of the reported event and time of event occurrence. We used descriptive statistics to analyse the data collected during a period of 1 year, after refinements to the search terms and processes had been made. FINDINGS: We analysed data from 10,380 reports (from 144 countries) obtained between May 1, 2011, and April 30, 2012. 7171 (69%) contained positive or neutral content and 3209 (31%) contained negative content. Of the negative reports, 1977 (24%) were associated with impacts on vaccine programmes and disease outbreaks; 1726 (21%) with beliefs, awareness, and perceptions; 1371 (16%) with vaccine safety; and 1336 (16%) with vaccine delivery programmes. We were able to disaggregate the data by country and vaccine type, and monitor evolution of events over time and location in specific regions where vaccine concerns were high. INTERPRETATION: Real-time monitoring and analysis of vaccine concerns over time and location could help immunisation programmes to tailor more effective and timely strategies to address specific public concerns. FUNDING: Bill & Melinda Gates Foundation.


Assuntos
Métodos Epidemiológicos , Aceitação pelo Paciente de Cuidados de Saúde , Opinião Pública , Vacinação/métodos , Vacinação/psicologia , Vacinas/administração & dosagem , Doenças Transmissíveis/epidemiologia , Sistemas Computacionais , Coleta de Dados/métodos , Humanos , Vacinação/efeitos adversos , Vacinas/efeitos adversos , Vacinas/imunologia
11.
Can J Urol ; 18(4): 5811-8, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21854713

RESUMO

INTRODUCTION: To compare the commonly used 0-1 pad definition of urinary continence for postoperative functional outcome after radical prostatectomy and the correlation with self-reported urinary continence and to determine whether a patient questionnaire can deliver more accurate continence status rates. MATERIAL AND METHODS: We evaluated a cohort of 873 men who underwent radical prostatectomy (RP) at the General Hospital in Vienna between 1998 and 2006. Patients were surveyed with a questionnaire regarding their postoperative outcome and postoperative urinary incontinence. Baseline and pathological factors were examined to determine whether or not they had an impact on the continence status. RESULTS AND LIMITATIONS: A total of 65.2% of men (n = 337) reported themselves to be continent, in contrast 85.1% were continent if the pad definition was applied. Of those using no pads, 93.4% considered themselves continent, while 24.5% of patients using one pad/day did. Overall, 86.5%, 9.8% and 3.7% of continent patients regained continence within 6 months, 6 to 12 months and after 1 year of RP, respectively. A total of 71.5% of men under 65 years old reported full urinary continence, while only 57.0% of men older than 65 considered themselves continent. Men < 65 years recovered full urinary control significantly faster than men older than 65 years- 3.6 versus 4.7 months. Neurovascular bundle resection has a negative effect on continence. CONCLUSIONS: The ultimate continence status should be measured with self-administered disease specific questionnaires at 24 months after RP, as it differs from standard physician reported methods. Age and neurovascular bundle resection are variables affecting continence. We believe that patients' subjective reports of their continence are crucial and that multiple outcomes should be objectively measured. Therefore we suggest that validated questionnaires dealing with the patients' perspective postoperatively should be included in routine follow up.


Assuntos
Prostatectomia/métodos , Neoplasias da Próstata/cirurgia , Autorrelato , Fenômenos Fisiológicos do Sistema Urinário , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Inquéritos Epidemiológicos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Prostatectomia/efeitos adversos , Estudos Retrospectivos , Fatores de Risco , Inquéritos e Questionários , Incontinência Urinária/epidemiologia
12.
BJU Int ; 108(10): 1582-7, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21443653

RESUMO

OBJECTIVE: To examine the impact of short-term preoperative utilization of erythropoietin-stimulating agents (ESAs) on biochemical recurrence (BCR)-free survival rates after open radical retropubic prostatectomy (ORRP) in light of the fact that the risk/benefit of ESAs has recently been questioned by the Food and Drug Administration (FDA) after reports showing a decreased survival. PATIENTS AND METHODS: From 2000 to 2008, 1567 patients underwent ORRP and 97.5% of these signed informed consent to participate in the New York University Prospective and Longitudinal Outcomes Study. Of the remaining 1528 patients, 1317 (86%) received preoperative ESA (group 1) and 211 (14%) did not (group 2). Patients were also classified as having low-, intermediate- or high-risk disease based on D'Amico risk categories. Kaplan-Meier survival curves and Cox's proportional hazard models were used to estimate BCR-free survival by ESA treatment. RESULTS: A significant difference was observed for BCR-free survival between the low- and intermediate/high-risk groups. There were no statistically significant differences between groups 1 and 2 for BCR-free survival in the entire study populations and within risk groups. In addition, Cox regression models showed no statistically significant differences in BCR-free survival according to preoperative ESA administration in the entire cohort as well as among the low- and intermediate/high-risk groups. CONCLUSIONS: The short-term use of ESAs as a preoperative blood management strategy for patients undergoing ORRP has no clinically relevant adverse effects on the biology of prostate cancer. The present study supports the use of these agents before the procedure in patients undergoing surgery for localized disease.


Assuntos
Eritropoetina/administração & dosagem , Hematínicos/administração & dosagem , Recidiva Local de Neoplasia/prevenção & controle , Neoplasias da Próstata/tratamento farmacológico , Idoso , Antineoplásicos Hormonais/uso terapêutico , Epoetina alfa , Eritropoetina/efeitos adversos , Hematínicos/efeitos adversos , Humanos , Estimativa de Kaplan-Meier , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/sangue , Cuidados Pré-Operatórios/métodos , Antígeno Prostático Específico/metabolismo , Prostatectomia/métodos , Neoplasias da Próstata/sangue , Neoplasias da Próstata/cirurgia , Proteínas Recombinantes/administração & dosagem , Proteínas Recombinantes/efeitos adversos
14.
Prim Care ; 37(3): 441-59, vii, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20705192

RESUMO

Prostate specific antigen (PSA) screening is an integral part of current screening for prostate cancer. Together with digital rectal examinations, it is recommended annually by the American Cancer Society. PSA screening has resulted in a significant stage migration in the past decades. Different forms of PSA, including free PSA, volume adjusted, complexed, intact, or pro-PSA, are being used in the screening process. Other aspects of the screening process include age at diagnosis, survival, overdiagnosis, and overtreatment. Recent studies have cast doubt on whether PSA screening positively affects mortality and how the quality of life of patients may be affected by screening. Future considerations include the need for more longitudinal studies as well as further study of the PSA components that may become more relevant in the future.


Assuntos
Detecção Precoce de Câncer/métodos , Antígeno Prostático Específico/sangue , Neoplasias da Próstata/diagnóstico , Distribuição por Idade , Exame Retal Digital , Predisposição Genética para Doença , Humanos , Incidência , Masculino , Estadiamento de Neoplasias , Atenção Primária à Saúde , Neoplasias da Próstata/epidemiologia , Neoplasias da Próstata/genética , Qualidade de Vida , Reprodutibilidade dos Testes
15.
Prim Care ; 37(3): 583-97, ix, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20705200

RESUMO

Benign prostatic hyperplasia (BPH) is the most common benign adenoma in men, affecting nearly all of them. BPH represents a clinically significant cause of bladder outflow obstruction in up to 40% of men. The growing frequency of diagnosis is due to increasing life expectancy and a trend toward seeking medical advice at earlier stages of the disease. The last decade has witnessed a significant shift in emphasis in the management of BPH, with medical therapies and, to a lesser extent, minimally invasive therapies becoming the predominant active therapy choices. The development of effective therapies such as alpha-adrenergic blockers and 5-alpha-reductase inhibitors and the possibility of their combined use represent the most significant advance in the treatment of BPH.


Assuntos
Hiperplasia Prostática/terapia , Inibidores de 5-alfa Redutase/uso terapêutico , Antagonistas Adrenérgicos alfa/uso terapêutico , Antagonistas Colinérgicos/uso terapêutico , Di-Hidrotestosterona/metabolismo , Progressão da Doença , Humanos , Masculino , Atenção Primária à Saúde , Ensaios Clínicos Controlados Aleatórios como Assunto , Inquéritos e Questionários , Testosterona/metabolismo , Conduta Expectante
16.
Can J Urol ; 17(4): 5249-54, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20735902

RESUMO

BACKGROUND: Transurethral resection of the prostate (TURP) has been the gold standard of the treatment of benign prostatic hyperplasia (BPH). In recent years there has been a significant shift in the treatment of BPH and guidelines emphasize minimally invasive surgery as a new treatment option. Minimal invasive technologies (MITs), such as transurethral microwave thermotherapy (TUMT), laser ablations, transurethral needle ablation (TUNA) have emerged as an alternative to the TURP. OBJECTIVES: To assess the retreatment rates of the most commonly used minimal invasive techniques. SEARCH STRATEGY: Durability articles were selected by using defined search terms using PubMed as search engine. RESULTS: Comparing to the overall retreatment rates of MITs the results show that TUMT, holmium laser enucleation of the prostate (HoLEP) and contact laser vaporization (CLV) are among the treatments with the lowest retreatment rates. Studies show no significant differences in retreatment rates between TUMT and TURP. CONCLUSION: A review of the current literature, long term results and retreatment rates of MITs shows large variability in outcomes and retreatment rates. The true definition of a MIT remains unclear. High energy TUMT deserves reconsideration in clinical practices, due to low retreatment rates and the low need of anesthetics.


Assuntos
Hiperplasia Prostática/cirurgia , Humanos , Masculino , Procedimentos Cirúrgicos Minimamente Invasivos , Prostatectomia/métodos , Retratamento , Fatores de Tempo
17.
Can J Urol ; 17(4): 5265-71, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20735905

RESUMO

BACKGROUND: Androgen deprivation therapy (ADT) is the standard care in men with advanced prostate cancer. Continuous testosterone suppression is essential to treatment efficacy. Recently a 1 year depot compound, histrelin, (VANTAS: Orion Pharmaceuticals, Finland; Endo Pharmaceuticals, USA), a gonadotropin-releasing hormone (GnRH) analog, was approved for hormone therapy of prostate cancer. In the present study the therapeutic efficacy of this compound was investigated, in addition to its impact on testosterone values and velocity as well as PSA. METHOD: One hundred thirty-one patients with histologically confirmed prostate cancer and normal testosterone levels were prospectively evaluated over 1 year. Androgen deprivation therapy was performed using a once yearly implant of the GnRH agonist histrelin. Testosterone and PSA levels, and histrelin serum profile were measured prospectively every month for 1 year. In addition, patients were stratified according to their PSA results and D'Amico risk profile. RESULTS: Testosterone suppression (testosterone < or = 50 ng/dL) was measured in all patients between weeks 4 and 52; 88% of patients had a continuous testosterone level under 20 ng/dL. The PSA level in the total population decreased significantly within the first 2 weeks compared with baseline, and after 52 weeks the median PSA level of the total population was 0.2 ng/mL. PSA responses were grouped into three typical therapeutic outcomes and correlated with the clinical risk distribution, and levels were lowered in all three risk groups. CONCLUSION: The GnRH agonist histrelin successfully suppressed testosterone over the entire study period. This effect was measured across a number of different clinical definitions of PSA response and clinical risk. The GnRH agonist therefore offers an effective therapy option in hormone treatment of prostate cancer.


Assuntos
Hormônio Liberador de Gonadotropina/análogos & derivados , Hormônio Liberador de Gonadotropina/agonistas , Neoplasias da Próstata/sangue , Neoplasias da Próstata/tratamento farmacológico , Testosterona/sangue , Idoso , Hormônio Liberador de Gonadotropina/uso terapêutico , Humanos , Masculino , Estudos Prospectivos , Antígeno Prostático Específico/sangue
18.
Rev Urol ; 12(1): 35-43, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20428292

RESUMO

Open radical prostatectomy (ORP) is the reference standard for the surgical management of localized prostate cancer. With wider availability of minimally invasive radical prostatectomy techniques, there is a debate regarding the standard treatment of the management of localized prostate cancer. Therefore, we reviewed the current status of laparoscopic radical prostatectomy (LRP) and robotic-assisted laparoscopic radical prostatectomy (RALRP) as compared with ORP. Because no prospective, randomized trials comparing the different techniques have been performed, outcomes must be assessed from published series by centers that focus on ORP, LRP, and RALRP. Aside from reducing the amount of blood loss, current data suggest that the most significant outcomes (cure, continence, and potency) are no better with LRP or RALRP than with conventional ORP. Therefore, in experienced hands, ORP remains the gold standard procedure. However, there is a trend toward consistently better outcomes following RALRP in comparison with LRP. In the end, individual patient outcomes can be maximized by choosing the best modality based on the patient's comorbid medical conditions, cancer characteristics, and surgeon experience. Future studies are needed to further investigate long-term cancer control as well as functional outcomes for RALRP series.

19.
Rev Urol ; 11(3): 127-33, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19918338

RESUMO

The advent of prostate-specific antigen (PSA) testing in the early 1980s revolutionized the diagnosis of prostate cancer. As a result of PSA testing, there has been a surge in the number of prostate cancer diagnoses. This review examines the results of 2 recent landmark trials that studied the effect of screening on prostate cancer mortality: the European Randomized Study of Screening for Prostate Cancer (ERSPC) and the US-based Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial.

20.
BJU Int ; 104(11): 1560-72, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20053187

RESUMO

OBJECTIVE: Prostate cancer is still the most frequent noncutaneous male malignancy and is the second most common cause of cancer death. Genetic factors have been extensively studied in different countries. In addition, numerous genome-wide association studies have been performed in developed countries. Genetic tests will be applied in the near future for diagnosis, therapeutic, and prognostic significance. Therefore, we reviewed the association of several important pathways and genes with critical functions in prostate cancer development or progression. MATERIALS AND METHODS: We performed a PubMed search using several key words such as prostate cancer, names of important genes with critical function, and polymorphisms. Then, we reviewed retrieved articles as well as relevant articles from 1997 to 2009. RESULTS: There are conflicting results of studies on some gene polymorphisms in association with prostate cancer. Most of the inconsistent results have been reported in studies investigating the vitamin D receptor gene polymorphism in association with prostate cancer. Genes related to angiogenesis and cell adhesion genes are more promising. Following results of future studies, the use of antibodies blocking over-expressed genes or proteins may be supported in patients with prostate cancer. CONCLUSIONS: The difference between the results of studies on gene polymorphisms in prostate cancer may be explained partly by ethnic differences, limited sample size, and other risk or protective factors modifying these effects. Genome-wide studies are currently performed in developed countries and extensive use of this type of analysis may merit consideration in other countries. Furthermore, future studies are needed to further investigate environmental and diet factors interactions with genetic factors.


Assuntos
Polimorfismo Genético/genética , Neoplasias da Próstata/genética , Adesão Celular/genética , Genes cdc , Loci Gênicos/genética , Predisposição Genética para Doença , Estudo de Associação Genômica Ampla , Humanos , Masculino , Neovascularização Patológica/genética , Receptores de Calcitriol/genética , Fatores de Risco
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