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1.
Psychiatr Serv ; 75(2): 182-185, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-37614155

RESUMO

OBJECTIVE: This report aimed to assess how accountable care organizations (ACOs) addressed ongoing opioid use disorder treatment needs over time. METHODS: Responses from the 2018 (N=308 organizations) and 2022 (N=276) National Survey of Accountable Care Organizations (response rate=55% in both years) were used to examine changes in availability of medication for opioid use disorder (MOUD) among ACOs with Medicare and Medicaid contracts. RESULTS: The percentage of respondents offering at least one MOUD grew from 39% in 2018 to 52% in 2022 (p<0.01). MOUDs were more likely to be available in 2022 among ACOs with (vs. without) in-network substance use treatment facilities (80% vs. 33%, p<0.001). The percentage of 2022 respondents who reported offering MOUD was similar in states with high versus low opioid overdose mortality rates. CONCLUSIONS: Despite growing availability of MOUD among ACOs, nearly half reported not offering any MOUD in 2022, and the availability of MOUD did not increase with treatment need.


Assuntos
Organizações de Assistência Responsáveis , Buprenorfina , Transtornos Relacionados ao Uso de Opioides , Idoso , Humanos , Estados Unidos , Medicare , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Medicaid , Buprenorfina/uso terapêutico
2.
Milbank Q ; 100(4): 1166-1191, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36575952

RESUMO

Policy Points Community mental health facilities often do not offer the full range of evidence-based clinical and support services for individuals with serious mental illness. Facilities were no more likely to offer six of seven services studied in 2019 compared with 2010 in both Medicaid expansion and nonexpansion states. For-profit facilities generally experienced the largest declines in service availability, while public facilities experienced the smallest declines with small increases in availability of select services. New payment models that incentivize the offer of specialty support services may be needed to encourage adoption of clinical and support services by specialty mental health organizations. CONTEXT: Community mental health facilities often do not offer the full range of evidence-based clinical and support services for individuals with serious mental illness. This creates equity issues, particularly when low-income and minority communities have access to fewer facilities. Medicaid expansion might encourage facilities to offer these services. However, this decision may also be affected by facility ownership type or mediated by service cost structure, particularly in the absence of innovative payment mechanisms. In this study, we determine whether and how Medicaid expansion and facility ownership are associated with changes in specialty mental health service availability in organized settings over time. METHODS: We estimated two-way fixed effects models using six cross-sections of the National Mental Health Services Survey and compared changes in facility-reported offering of seven services from 2010 to 2019 (54,885 facility years): psychotropic medication, case management, family psychoeducation, psychiatric emergency walk-in services, supported employment, assertive community treatment, illness management, and recovery services. We tested whether Medicaid expansion and facility ownership (private for-profit, private not-for-profit, public) were associated with differential changes in service availability from 2010 to 2019. FINDINGS: Overall, facilities were no more likely to offer nearly all services in 2019 than 2010. We found smaller declines for psychotropic medication and psychiatric emergency walk-in services among facilities in Medicaid expansion states compared to declines in non-Medicaid expansion states (6.3 (95% CI 95% CI = 1.8-10.7) and 5.5 (95% CI = 0.2-10.8) percentage points respectively). For-profit facilities experienced the largest declines in availability from 2010 to 2019, while public facilities experienced the smallest declines and some increases in availability of select services. CONCLUSIONS: Specialty mental health services are still not widely offered in community outpatient settings despite significant investments in Medicaid, although Medicaid expansion was associated with slower declines in availability. New payment models that incentivize outpatient facilities to offer clinical and support services may be needed.


Assuntos
Serviços de Saúde Mental , Humanos , Estados Unidos , Medicaid , Acesso aos Serviços de Saúde , Pobreza
3.
Health Aff (Millwood) ; 41(8): 1182-1190, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35914206

RESUMO

Serious mental illness (SMI) is a major source of suffering among Medicare beneficiaries. To date, limited evidence exists evaluating whether Medicare accountable care organizations (ACOs) are associated with decreased spending among people with SMI. Using national Medicare data from the period 2009-17, we performed difference-in-differences analyses evaluating changes in spending and use associated with enrollment in the Medicare Shared Savings Program (MSSP) among beneficiaries with SMI. After five years, participation in MSSP ACOs was associated with small savings for beneficiaries with SMI (-$233 per person per year) in total health care spending, primarily related to savings from chronic medical conditions (excluding mental health; -$227 per person per year) and not from savings related to mental health services (-$6 per person per year). Savings were driven by reductions in acute and postacute care for medical conditions. Further work is needed to ensure that Medicare ACOs invest in strategies to reduce potentially unnecessary care related to mental health disorders and to improve health outcomes.


Assuntos
Organizações de Assistência Responsáveis , Transtornos Mentais , Idoso , Redução de Custos , Humanos , Medicare , Transtornos Mentais/terapia , Cuidados Semi-Intensivos , Estados Unidos
4.
JAMA Netw Open ; 5(7): e2224803, 2022 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-35838666

RESUMO

Importance: The mental health crisis lifeline 988 will begin operating July 16, 2022. In the absence of appropriately trained first responders, including crisis intervention teams (CITs), persons experiencing behavioral health crises face the risk of incarceration and even death. Objective: To assess county-level access to CIT in 2015 and 2020 and its association with area characteristics and state policies in 2020. Design, Setting, and Participants: This cross-sectional study included 10 430 facilities from the 2015 National Directory of Mental Health Treatment Facilities and 10 591 facilities from the 2020 National Directory of Mental Health Treatment Facilities, attributed to 3142 US counties. Exposures: Area measures included need (suicide, drug-related overdose mortality), rurality, and demographic characteristics. State-level policies included 5 Medicaid policies enacted prior to 2020 and 2 recent policies intended to assist implementation of the 988 lifeline. Main Outcomes and Measures: Whether there was at least 1 facility that reported offering a CIT that handled acute mental health issues at the facility or off-site for each county in 2015 and, separately, in 2020. Results: Most US residents (88%) resided in a county with at least 1 facility offering CIT, although half of US counties had no facility offering CIT (2015: 1537 of 3142 [49%]; 2020: 1512 [48%]). Almost 1 in 5 counties, representing 9% of the population, experienced a change in county-level access from 2015 to 2020. Unadjusted analyses indicated residents of counties without vs with CIT access were more likely to be older and uninsured (top quartile of percentage of residents aged >55 years: 502 of 1512 [33%] vs 283 of 1630 [17%]; P < .001; top quartile of percentage of residents uninsured: 500 [33%] vs 285 [17%]; P < .001) and were more likely be rural (frontier: 500 [33%] vs 144 [9%]; P < .001). Similar results, excluding counties in the top quartile of residents aged older than 55 years, were found in adjusted analyses. Counties without vs with CIT access were less likely to be in states that expanded Medicaid (788 [52%] vs 1102 [68%]; P = .01) and in states that allow Medicaid to pay for short-term stays in psychiatric hospitals (34 [2%] vs 73 [4%]; P = .02). Other Medicaid-related associations were not statistically significant in adjusted analyses. Conclusions and Relevance: In this study, most US residents lived in counties with access to at least 1 CIT, but fewer than half of US counties had such access. Policies to encourage facilities in rural counties to offer CIT may help realize the potential of the new lifeline.


Assuntos
Overdose de Drogas , Medicaid , Intervenção na Crise , Estudos Transversais , Humanos , Saúde Mental , Políticas , Estados Unidos
5.
Psychiatr Serv ; 73(8): 889-896, 2022 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-35378992

RESUMO

Objective: This study examined whether and how organizations participating in accountable care organization (ACO) contracts integrate primary care and treatment for patients with serious mental illness. Methods: This study used responses to the 2017­2018 National Survey of ACOs (55% response rate) to measure ACO-reported use of three integrated care strategies: care manager to address physical health treatment coordination or nonmedical needs (e.g., job support and housing), patient registries to track physical health conditions, and primary care clinician colocated in a specialty mental health setting. Logistic regression was used to determine associations between ACO characteristics and strategy use. Results: Of 399 respondents who answered questions on integration, 303 (76%) reported using at least one integrated care strategy in at least one location. Use of care managers (defined by the respondent) was most common (N=281, 70%), followed by use of a patient registry (N=146, 37%) and colocation of a primary care clinician in a specialty mental health setting (N=118, 30%). Respondents reporting that their largest Medicaid contract or largest commercial contract included quality measures specific to serious mental illness (e.g., antipsychotic adherence) were more likely to use each integrated care delivery strategy. Self-reported use of three collaborative care strategies (care management, patient registry, or mental health consulting clinician) for treatment of depression or anxiety was associated with use of integrated primary care and treatment for serious mental illness. Conclusions: In a national survey of ACOs, few respondents reported using either patient registries or primary care colocation to integrate primary care and treatment for serious mental illness.


Assuntos
Organizações de Assistência Responsáveis , Transtornos Mentais , Humanos , Transtornos Mentais/terapia , Estados Unidos
6.
J Gen Intern Med ; 37(12): 3045-3053, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35266129

RESUMO

BACKGROUND: There are concerns about the capacity of rural primary care due to potential workforce shortages and patients with disproportionately more clinical and socioeconomic risks. Little research examines the configuration and delivery of primary care along the spectrum of rurality. OBJECTIVE: Compare structure, capabilities, and payment reform participation of isolated, small town, micropolitan, and metropolitan physician practices, and the characteristics and utilization of their Medicare beneficiaries. DESIGN: Observational study of practices defined using IQVIA OneKey, 2017 Medicare claims, and, for a subset, the National Survey of Healthcare Organizations and Systems (response rate=47%). PARTICIPANTS: A total of 27,716,967 beneficiaries with qualifying visits who were assigned to practices. MAIN MEASURES: We characterized practices' structure, capabilities, and payment reform participation and measured beneficiary utilization by rurality. KEY RESULTS: Rural practices were smaller, more primary care dominant, and system-owned, and had more beneficiaries per practice. Beneficiaries in rural practices were more likely to be from high-poverty areas and disabled. There were few differences in patterns of outpatient utilization and practices' care delivery capabilities. Isolated and micropolitan practices reported less engagement in quality-focused payment programs than metropolitan practices. Beneficiaries cared for in more rural settings received fewer recommended mammograms and had higher overall and condition-specific readmissions. Fewer beneficiaries with diabetes in rural practices had an eye exam. Most isolated rural beneficiaries traveled to more urban communities for care. CONCLUSIONS: While most isolated Medicare beneficiaries traveled to more urban practices for outpatient care, those receiving care in rural practices had similar outpatient and inpatient utilization to urban counterparts except for readmissions and quality metrics that rely on services outside of primary care. Rural practices reported similar care capabilities to urban practices, suggesting that despite differences in workforce and demographics, rural patterns of primary care delivery are comparable to urban.


Assuntos
Medicare , População Rural , Idoso , Assistência Ambulatorial , Atenção à Saúde , Humanos , Atenção Primária à Saúde , Estados Unidos
7.
Obstet Gynecol ; 139(4): 597-605, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-35272346

RESUMO

OBJECTIVE: To measure geographic variation in rates of apical support procedures for the treatment of pelvic organ prolapse (POP) among female Medicare beneficiaries. METHODS: We conducted a retrospective, cross-sectional study and used 100% Medicare fee-for-service claims to identify a cohort of women aged 65-99 years who had an apical support procedure, defined by Current Procedural Terminology codes, in 2016-2018. We included all vaginal and abdominal approaches (native tissue and mesh colpopexies) and obliterative procedures. We excluded vaginectomies with a diagnosis of gynecologic cancer that did not have a diagnosis for prolapse. We created rates of apical POP procedures by hospital referral region and computed coefficients of variation to measure the degree of geographic variation. RESULTS: An average of 26,005 apical POP procedures were performed annually from 2016 to 2018. The majority of patients were aged 65-74 years (64.3%), and 28.5% had concomitant hysterectomy. From 2016 to 2018, there was a mean of 1.79 apical POP procedures per 1,000 female beneficiaries performed across hospital referral regions (95% CI 1.74-1.84). Rate estimates ranged between 0.87 (95% CI 0.63-1.11) apical POP procedures per 1,000 female beneficiaries (Alexandria, Louisiana) and 3.33 (95% CI 2.91-3.74) per 1,000 beneficiaries (Akron, Ohio), a nearly fourfold difference in rates. Variation between hospital referral regions for abdominal apical prolapse procedures was the greatest (coefficient of variation 0.52). Vaginal and obliterative approaches demonstrated less variation between hospital referral regions (respectively, coefficient of variation 0.36 and 0.40). CONCLUSION: There is wide geographic variation among hospital referral regions for the treatment of POP. Women may be treated differently based on where they live and seek care, which raises questions about possible overuse in some regions and concerns about underuse and lack of access in other regions.


Assuntos
Medicare , Prolapso de Órgão Pélvico , Idoso , Estudos Transversais , Feminino , Procedimentos Cirúrgicos em Ginecologia/métodos , Humanos , Prolapso de Órgão Pélvico/cirurgia , Estudos Retrospectivos , Telas Cirúrgicas , Resultado do Tratamento , Estados Unidos , Vagina
8.
Healthc (Amst) ; 10(1): 100613, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35081475

RESUMO

Patients with serious mental illness often lack access to mental health support services. Whether new payment models facilitate access to these services is unknown. We conducted a national survey of accountable care organizations(ACOs) and find that fewer than 50% of ACOs surveyed reported that they have the ability to offer or refer patients to supported employment, family psychoeducation, assertive community treatment and illness, management and recovery services. These findings suggest that even among organizations that are early adopters of payment and delivery reforms -- those most likely to lead innovations in population health -- access to these services is limited.


Assuntos
Organizações de Assistência Responsáveis , Serviços de Saúde Mental , Humanos , Saúde Mental , Inquéritos e Questionários , Estados Unidos
9.
Medicine (Baltimore) ; 100(27): e26539, 2021 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-34232192

RESUMO

ABSTRACT: Collaborative care - primary care models combining care management, consulting behavioral health clinicians, and registries to target mental health treatment - is a cost-effective depression treatment model, but little is known about uptake of collaborative care in a national setting. Alternative payment models such as accountable care organizations (ACOs), in which ACOs are responsible for quality and cost for defined patient populations, may encourage collaborative care use.Determine prevalence of collaborative care implementation among ACOs and whether ACO structure or contract characteristics are associated with implementation.Cross-sectional analysis of 2017-2018 National Survey of ACOs (NSACO). Overall, 55% of ACOs returned a survey (69% of Medicare, 36% of non-Medicare ACOs); 48% completed at least half of core survey questions. We used logistic regression to examine the association between implementation of core collaborative care components - care management, a consulting mental health clinician, and a patient registry to track mental health symptoms - and ACO characteristics.Four hundred five National Survey of ACOs respondents answering questions on collaborative care implementation.Only 17% of ACOs reported implementing all collaborative care components. Most reported using care managers (71%) and consulting mental health clinicians (58%), =just 26% reported using patient registries. After adjusting for multiple ACO characteristics, ACOs responsible for mental health care quality measures were 15 percentage points (95% CI 5-23) more likely to implement collaborative care.Most ACOs are not utilizing behavioral health collaborative care. Including mental health care quality measures in payment contracts may facilitate implementation of this cost-effective model. Improving provider capacity to track and target depression treatment with patient registries is warranted as payment contracts focus on treatment outcomes.


Assuntos
Organizações de Assistência Responsáveis/organização & administração , Transtorno Depressivo/terapia , Gerenciamento Clínico , Atenção Primária à Saúde/métodos , Estudos Transversais , Humanos , Estudos Retrospectivos
10.
PLoS One ; 15(7): e0235274, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32628688

RESUMO

The aim of this study is to explore participants' views and experiences of an eHealth phase 3 cardiac rehabilitation (CR) intervention: Physical Activity Towards Health (PATHway). Sixty participants took part in the PATHway intervention. Debriefs were conducted after the six-month intervention. All interviews were audio recorded and transcribed verbatim. Transcripts were analysed with Braun and Clarke's thematic analysis. Forty-four (71%) debriefs were conducted (n = 34 male, mean (SD) age 61 (10) years). Five key themes were identified: (1) Feedback on the components of the PATHway system, (2) Motivation, (3) Barriers to using PATHway, (4) Enablers to using PATHway, and (5) Post programme reflection. There were a number of subthemes within each theme, for example motivation explores participants motivation to take part in PATHway and participants motivation to sustain engagement with PATHway throughout the intervention period. Participant engagement with the components of the PATHway system was variable. Future research should focus on optimising participant familiarisation with eHealth systems and employ an iterative approach to development and evaluation.


Assuntos
Reabilitação Cardíaca/psicologia , Doenças Cardiovasculares/psicologia , Exercício Físico/psicologia , Telemedicina/métodos , Idoso , Reabilitação Cardíaca/métodos , Convalescença/psicologia , Retroalimentação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Motivação/fisiologia , Pesquisa Qualitativa , Inquéritos e Questionários
11.
J Med Internet Res ; 22(2): e14221, 2020 02 04.
Artigo em Inglês | MEDLINE | ID: mdl-32014842

RESUMO

BACKGROUND: Cardiac rehabilitation (CR) is highly effective as secondary prevention for cardiovascular diseases (CVDs). Uptake of CR remains suboptimal (30% of eligible patients), and long-term adherence to a physically active lifestyle is even lower. Innovative strategies are needed to counteract this phenomenon. OBJECTIVE: The Physical Activity Toward Health (PATHway) system was developed to provide a comprehensive, remotely monitored, home-based CR program for CVD patients. The PATHway-I study aimed to investigate its feasibility and clinical efficacy during phase III CR. METHODS: Participants were randomized on a 1:1 basis to the PATHway (PW) intervention group or usual care (UC) control group in a single-blind, multicenter, randomized controlled pilot trial. Outcomes were assessed at completion of phase II CR and 6-month follow-up. The primary outcome was physical activity (PA; Actigraph GT9X link). Secondary outcomes included measures of physical fitness, modifiable cardiovascular risk factors, endothelial function, intima-media thickness of the common carotid artery, and quality of life. System usability and patients' experiences were evaluated only in PW. A mixed-model analysis of variance with Bonferroni adjustment was used to analyze between-group effects over time. Missing values were handled by means of an intention-to-treat analysis. Statistical significance was set at a 2-sided alpha level of .05. Data are reported as mean (SD). RESULTS: A convenience sample of 120 CVD patients (mean 61.4 years, SD 13.5 years; 22 women) was included. The PATHway system was deployed in the homes of 60 participants. System use decreased over time and system usability was average with a score of 65.7 (SD 19.7; range 5-100). Moderate-to-vigorous intensity PA increased in PW (PW: 127 [SD 58] min to 141 [SD 69] min, UC: 146 [SD 66] min to 143 [SD 71] min; Pinteraction=.04; effect size of 0.42), while diastolic blood pressure (PW: 79 [SD 11] mmHg to 79 [SD 10] mmHg, UC: 78 [SD 9] mmHg to 83 [SD 10] mmHg; Pinteraction=.004; effect size of -0.49) and cardiovascular risk score (PW: 15.9% [SD 10.4%] to 15.5% [SD 10.5%], UC: 14.5 [SD 9.7%] to 15.7% [SD 10.9%]; Pinteraction=.004; effect size of -0.36) remained constant, but deteriorated in UC. CONCLUSIONS: This pilot study demonstrated the feasibility and acceptability of a technology-enabled, remotely monitored, home-based CR program. Although clinical effectiveness was demonstrated, several challenges were identified that could influence the adoption of PATHway. TRIAL REGISTRATION: ClinicalTrials.gov NCT02717806; https://clinicaltrials.gov/ct2/show/NCT02717806. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.1136/bmjopen-2017-016781.


Assuntos
Reabilitação Cardíaca/métodos , Exercício Físico/fisiologia , Qualidade de Vida/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto
12.
Am J Med ; 133(4): 452-462.e4, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31647915

RESUMO

BACKGROUND: True allergy to penicillin is rare, despite the high frequency with which it is reported. While most patients reporting penicillin allergy are not prone to anaphylaxis, it is not currently known what percentage of these patients will tolerate dose challenges of penicillin-based antibiotics. This review aims to determine the rate of tolerance in patients reporting penicillin allergy when challenged with penicillin-based antibiotics. METHODS: We searched MedLine, Embase, and Cochrane Library for publications with English language translations between the years 2000 and 2017. We included randomized controlled trials, quasi-experimental, and observational studies of participants reporting penicillin allergy who received at least one systemic dose of a penicillin in the form of a drug challenge. At least 2 independent reviewers extracted data from included studies and assessed the quality of each included study. To generate primary outcome data, we calculated a summary estimate rate of penicillin tolerance from a pooled proportion of participants receiving penicillin with no adverse effects. RESULTS: Initial literature search yielded 2945 studies, of which 23 studies were ultimately included in our review; 5056 study participants with reported history of penicillin allergy were challenged with a penicillin. After weighting for study sample size, a pooled average of 94.4% (95% confidence interval, 93.7%-95%) of participants tolerated the dose challenge without any adverse reaction. CONCLUSION: Misrepresented penicillin allergy drives unnecessary use of alternative antibiotics, which may be less effective, more toxic, and more expensive than using penicillin. In addressing the problem of penicillin allergy over-diagnosis, evaluation should go beyond risk for type 1 hypersensitivity. Our data suggest that 94.4% of 5056 participants with reported penicillin allergy determined to be clinically appropriate for allergy evaluation tolerated repeat administration of penicillin-based antibiotics without any adverse reactions. This review generates meaningful information useful to clinical predictive analytics, in evaluating and managing patients with a reported history of penicillin allergy.


Assuntos
Antibacterianos/efeitos adversos , Hipersensibilidade a Drogas/diagnóstico , Hipersensibilidade a Drogas/prevenção & controle , Penicilinas/efeitos adversos , Antibacterianos/administração & dosagem , Hipersensibilidade a Drogas/etiologia , Humanos , Penicilinas/administração & dosagem
14.
J Health Care Poor Underserved ; 27(4A): 83-90, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27818416

RESUMO

Rural communities disproportionately face preventable chronic diseases and death from treatable conditions. Health workforce shortages contribute to limited health care access and health disparities. Efforts to address workforce shortages have included establishing graduate medical education programs with the goal of recruiting and retaining physicians in the communities in which they train. However, rural communities face a number of challenges in developing and maintaining successful residency programs, including concerns over financial sustainability and the integration of resident trainees into existing clinical practices. Despite these challenges, rural communities are increasingly interested in investing in residency programs; those that are successful see additional benefits in workforce recruitment, access, and quality of care that have immediate and direct impact on the health of rural communities. This commentary examines the challenges and benefits of rural residency programs, drawing from lessons learned from the Health Resources and Services Administration's Teaching Health Center Graduate Medical Education program.


Assuntos
Educação de Pós-Graduação em Medicina , Serviços de Saúde Rural , Mão de Obra em Saúde , Humanos , Internato e Residência , Médicos , População Rural , Estados Unidos
15.
Biol Reprod ; 73(4): 610-8, 2005 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-15917350

RESUMO

Inhibin is secreted in two distinct heterodimeric forms, A and B, but the mechanism for the differential control of these two forms is unclear. To evaluate the relationship between secretion of inhibin forms and folliculogenesis, the effects of gonadotropins on inhibin concentrations were studied in parallel with stereological enumeration of ovarian follicle types in gonadotropin-deficient hypogonadal (hpg) female mice treated with recombinant human FSH (10 IU/day), hCG (1 IU/day), or both for 20 days. Treatment with FSH alone significantly increased blood concentrations of both inhibin A and inhibin B, whereas hCG alone had no effect on either inhibin. The combination of FSH and hCG further increased the concentration of inhibin A but had no effect on the concentration of inhibin B beyond that of FSH. The number of primordial follicles per ovary was significantly reduced in FSH-treated hpg mice, but was not affected by hCG treatment. Antral follicles were absent in the untreated hpg mice, present following treatment with FSH, and were present in only limited numbers following hCG treatment alone. Preovulatory follicles were observed only in the wild-type and combined FSH and hCG treatment groups. These results demonstrate that secretion of both inhibins is associated with the presence of antral follicles. Inhibin A secretion is increased by the presence of preovulatory follicles, whereas the concentration of inhibin B is not affected. The observed effects of gonadotropins on inhibin A and B secretion may be explained by corresponding gonadotropin effects on follicle development.


Assuntos
Gonadotropinas/metabolismo , Inibinas/metabolismo , Folículo Ovariano/citologia , Folículo Ovariano/fisiologia , Animais , Contagem de Células , Gonadotropina Coriônica/farmacologia , Estradiol/metabolismo , Feminino , Hormônio Foliculoestimulante/metabolismo , Hormônio Foliculoestimulante/farmacologia , Gonadotropinas/deficiência , Gonadotropinas/farmacologia , Hipogonadismo/metabolismo , Hipogonadismo/patologia , Hormônio Luteinizante/metabolismo , Hormônio Luteinizante/farmacologia , Camundongos , Camundongos Mutantes , Tamanho do Órgão , Ovário/crescimento & desenvolvimento , Ovulação , Progesterona/metabolismo , Fatores de Tempo
16.
J Cardiopulm Rehabil ; 23(1): 17-21, 2003.
Artigo em Inglês | MEDLINE | ID: mdl-12576907

RESUMO

BACKGROUND: Cardiac rehabilitation (CR) is widely accepted as beneficial for patients with myocardial infarction (MI) and coronary artery bypass graft (CABG). A need exists to evaluate how different formats of delivery can best meet CR service demands. METHODS AND RESULTS: Cardiac patients (n = 60) were randomly assigned to either a standard 10-week (30 sessions) or a 4-week (20 sessions) multifactorial rehabilitation program. Patients underwent exercise testing using the Bruce protocol before, immediately after, and then 6 months after CR. Patients also completed the SF-36 quality of life questionnaire and the Hospital Anxiety and Depression scale at each time point. Compared with pre-CR, exercise time and metabolic equivalents attained were significantly increased, and heart rate significantly decreased both immediately (P<.05) and 6 months after CR (P<.05) in both groups, with no between-group differences. Significant improvements (P<.05) in energy, pain, and general health were reported after CR, and in energy and emotional and social well-being at 6 months after CR. No differences were seen between the groups. CONCLUSIONS: Cardiac rehabilitation after MI and CABG significantly improved exercise capacity and general health and well-being. No significant differences were detected between groups undergoing a 10-week or 4-week course. These preliminary data suggest that shortened courses of CR may be beneficial to cardiac patients and such courses may also facilitate more widespread use of CR.


Assuntos
Terapia por Exercício/métodos , Tolerância ao Exercício/fisiologia , Infarto do Miocárdio/reabilitação , Medicina Física e Reabilitação/métodos , Qualidade de Vida , Idoso , Análise de Variância , Angioplastia Coronária com Balão/reabilitação , Ponte de Artéria Coronária/reabilitação , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico , Probabilidade , Fatores de Tempo , Resultado do Tratamento
17.
J Cardiovasc Risk ; 9(5): 271-4, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12394320

RESUMO

BACKGROUND: Non-smokers who live with smokers are at increased risk for coronary heart disease (CHD). However, such a risk may be increased if the non-smoker is a patient with established CHD. The present study assessed the percentage of cardiac rehabilitation patients who share a household with regular smokers. METHODS: One hundred and three consecutive cardiac patients attending a hospital-based outpatient 10-week multidisciplinary cardiac rehabilitation programme completed a questionnaire to assess the smoking behaviour of cardiac patients and the smoking behaviour of others in the patient's household. RESULTS: Forty percent of the present sample reported sharing a household with someone else who smoked. The single most common smoker in the household was the patient's spouse (36%), followed by son (12%), daughter (12%) and son and daughter (12%). Of those living with a smoker, only 15% reported that the smoker did not smoke in their presence. Thus, 85% of cardiac patients living in a house where somebody smoked were regularly exposed to environmental smoke. CONCLUSION: A substantial number of cardiac patients may be exposed to environmental smoke in the household. Interventions to modify the lifestyle behaviour of other members of the cardiac patient's household may be warranted in order to achieve optimum secondary prevention.


Assuntos
Doença das Coronárias , Características da Família , Poluição por Fumaça de Tabaco/estatística & dados numéricos , Adulto , Idoso , Doença das Coronárias/reabilitação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Inquéritos e Questionários
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