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1.
BMC Health Serv Res ; 18(1): 116, 2018 02 14.
Artigo em Inglês | MEDLINE | ID: mdl-29444713

RESUMO

BACKGROUND: Hospital mortality, readmission and length of stay (LOS) are commonly used measures for quality of care. We aimed to disentangle the correlations between these interrelated measures and propose a new way of combining them to evaluate the quality of hospital care. METHODS: We analyzed administrative data from the Global Comparators Project from 26 hospitals on patients discharged between 2007 and 2012. We correlated standardized and risk-adjusted hospital outcomes on mortality, readmission and long LOS. We constructed a composite measure with 5 levels, based on literature review and expert advice, from survival without readmission and normal LOS (best) to mortality (worst outcome). This composite measure was analyzed using ordinal regression, to obtain a standardized outcome measure to compare hospitals. RESULTS: Overall, we observed a 3.1% mortality rate, 7.8% readmission rate (in survivors) and 20.8% long LOS rate among 4,327,105 admissions. Mortality and LOS were correlated at the patient and the hospital level. A patient in the upper quartile LOS had higher odds of mortality (odds ratio = 1.45, 95% confidence interval 1.43-1.47) than those in the lowest quartile. Hospitals with a high standardized mortality had higher proportions of long LOS (r = 0.79, p < 0.01). Readmission rates did not correlate with either mortality or long LOS rates. The interquartile range of the standardized ordinal composite outcome was 74-117. The composite outcome had similar or better reliability in ranking hospitals than individual outcomes. CONCLUSIONS: Correlations between different outcome measures are complex and differ between hospital- and patient-level. The proposed composite measure combines three outcomes in an ordinal fashion for a more comprehensive and reliable view of hospital performance than its component indicators.


Assuntos
Mortalidade Hospitalar , Tempo de Internação/estatística & dados numéricos , Avaliação de Resultados em Cuidados de Saúde , Readmissão do Paciente/estatística & dados numéricos , Adulto , Idoso , Bases de Dados Factuais , Feminino , Pesquisa sobre Serviços de Saúde , Humanos , Internacionalidade , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes
2.
BMC Health Serv Res ; 16(1): 551, 2016 10 05.
Artigo em Inglês | MEDLINE | ID: mdl-27716196

RESUMO

BACKGROUND: Quality indicators are increasingly used to measure the quality of care and compare quality across hospitals. In the Netherlands over the past few years numerous hospital quality indicators have been developed and reported. Dutch indicators are mainly based on expert consensus and face validity and little is known about their construct validity. Therefore, we aim to study the construct validity of a set of national hospital quality indicators for hip replacements. METHODS: We used the scores of 100 Dutch hospitals on national hospital quality indicators looking at care delivered over a two year period. We assessed construct validity by relating structure, process and outcome indicators using chi-square statistics, bootstrapped Spearman correlations, and independent sample t-tests. We studied indicators that are expected to associate as they measure the same clinical construct. RESULT: Among the 28 hypothesized correlations, three associations were significant in the direction hypothesized. Hospitals with low scores on wound infections had high scores on scheduling postoperative appointments (p-value = 0.001) and high scores on not transfusing homologous blood (correlation coefficient = -0.28; p-value = 0.05). Hospitals with high scores on scheduling complication meetings, also had high scores on providing thrombosis prophylaxis (correlation coefficient = 0.21; p-value = 0.04). CONCLUSION: Despite the face validity of hospital quality indicators for hip replacement, construct validity seems to be limited. Although the individual indicators might be valid and actionable, drawing overall conclusions based on the whole indicator set should be done carefully, as construct validity could not be established. The factors that may explain the lack of construct validity are poor data quality, no adjustment for case-mix and statistical uncertainty.


Assuntos
Artroplastia de Quadril/normas , Indicadores de Qualidade em Assistência à Saúde/normas , Hospitalização , Hospitais/normas , Humanos , Países Baixos/epidemiologia , Avaliação de Processos e Resultados em Cuidados de Saúde , Reprodutibilidade dos Testes , Infecção da Ferida Cirúrgica/epidemiologia
3.
Ned Tijdschr Geneeskd ; 160: A9868, 2015.
Artigo em Holandês | MEDLINE | ID: mdl-27027208

RESUMO

OBJECTIVE: How do healthcare consumers perceive the use of medical data for scientific research, within the framework of protection of their personal data? DESIGN: Survey among 731 members of the Healthcare Consumer Panel of the Netherlands Institute for Health Services Research (NIVEL). METHOD: A written and online questionnaire was used, consisting of general questions and 4 cases per respondent. The questions concerned the degree of trust respondents have in the use of previously registered data for different kinds of healthcare research, and their willingness to make data available under various conditions without being asked for explicit consent. RESULTS: Respondents showed a high degree of trust in scientific researchers and physicians concerning the re-use of medical data for research. A majority agreed that it is not necessary to be explicitly asked for consent for this kind of research, providing they are informed: one-third found their autonomy in being able to decide to be more important than scientific progress; three-quarters found explicit permission unnecessary as long as the data is well-protected and only used for scientific research. CONCLUSION: Data protection in research should be proportional to the risks of misuse and the benefits of the use of the data for research. A large majority of healthcare users trust the researchers, and the existing codes of conduct protect data sufficiently. Therefore, we see no need for stricter requirements for the use of health data, which would unnecessarily limit healthcare research. We do consider greater transparency about the research process to be necessary, in order to maintain a proper balance between personal-data protection and the need to emphasise the necessity for learning in the healthcare system.


Assuntos
Pesquisa sobre Serviços de Saúde/métodos , Consentimento Livre e Esclarecido , Inquéritos e Questionários , Pesquisa sobre Serviços de Saúde/ética , Humanos , Países Baixos , Confiança
4.
Ann Surg Oncol ; 22(4): 1207-13, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25316487

RESUMO

BACKGROUND: Surgery is still the only curative treatment for medullary thyroid cancer (MTC). We evaluated clinical outcome in patients with locoregional MTC with regard to adequacy of treatment following ATA guidelines and number of sessions to first intended curative surgery in different hospitals. METHODS: We reviewed all records of MTC patients (n = 184) treated between 1980 and 2010 in two tertiary referral centers in the Netherlands. Symptomatic MTC (palpable tumor or suspicious lymphadenopathy) patients without distant metastasis were included (n = 86). Patients were compared with regard to adequacy of surgery according to ATA recommendations, tumor characteristics, number of local cancer reoperations, biochemical cure, clinical disease-free survival (DFS), overall survival (OS), and complications. RESULTS: Adherence to ATA guidelines resulted in fewer cancer-related reoperations (0.24 vs. 0.60; P = 0.027) and more biochemical cure (40.9 vs. 20 %; P = 0.038). Surgery according to ATA-guidelines on patients treated in referral centers was significantly more often adequate (59.2 vs. 26.7 %; P = 0.026). Tumor size and LN+ were the most important predictors for clinical recurrence [relative risk (RR) 4.1 (size > 40 mm) 4.1 (LN+) and death (RR 4.2 (size > 40 mm) 8.1 (LN+)]. CONCLUSIONS: ATA-compliant surgery resulted in fewer local reoperations and more biochemical cure. Patients in referral centers more often underwent adequate surgery according to ATA-guidelines. Size and LN+ were the most important predictors for DFS and OS.


Assuntos
Carcinoma Medular/patologia , Carcinoma Medular/cirurgia , Guias de Prática Clínica como Assunto , Reoperação/estatística & dados numéricos , Neoplasias da Glândula Tireoide/patologia , Neoplasias da Glândula Tireoide/cirurgia , Tireoidectomia/estatística & dados numéricos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Feminino , Seguimentos , Humanos , Linfonodos/patologia , Linfonodos/cirurgia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/diagnóstico , Estadiamento de Neoplasias , Complicações Pós-Operatórias , Prognóstico , Estudos Retrospectivos , Centros de Atenção Terciária , Adulto Jovem
5.
PLoS One ; 9(2): e88737, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24558418

RESUMO

OBJECTIVE: To identify, on the basis of past performance, those hospitals that demonstrate good outcomes in sufficient numbers to make it likely that they will provide adequate quality of care in the future, using a combined measure of volume and outcome (CM-V&O). To compare this CM-V&O with measures using outcome-only (O-O) or volume-only (V-O), and verify 2010-quality of care assessment on 2011 data. DESIGN: Secondary analysis of clinical audit data. SETTING: The Dutch Surgical Colorectal Audit database of 2010 and 2011, the Netherlands. PARTICIPANTS: 8911 patients (test population, treated in 2010) and 9212 patients (verification population, treated in 2011) who underwent a resection of primary colorectal cancer in 89 Dutch hospitals. MAIN OUTCOME MEASURES: Outcome was measured by Observed/Expected (O/E) postoperative mortality and morbidity. CM-V&O states 2 criteria; 1) outcome is not significantly worse than average, and 2) outcome is significantly better than substandard, with 'substandard care' being defined as an unacceptably high O/E threshold for mortality and/or morbidity (which we set at 2 and 1.5 respectively). RESULTS: Average mortality and morbidity in 2010 were 4.1 and 24.3% respectively. 84 (94%) hospitals performed 'not worse than average' for mortality, but only 21 (24%) of those were able to prove they were also 'better than substandard' (O/E<2). For morbidity, 42 hospitals (47%) met the CM-V&O. Morbidity in 2011 was significantly lower in these hospitals (19.8 vs. 22.8% p<0.01). No relationship was found between hospitals' 2010 performance on O-O en V-O, and the quality of their care in 2011. CONCLUSION: CM-V&O for morbidity can be used to identify hospitals that provide adequate quality and is associated with better outcomes in the subsequent year.


Assuntos
Auditoria Clínica/métodos , Neoplasias Colorretais/cirurgia , Procedimentos Cirúrgicos do Sistema Digestório/estatística & dados numéricos , Hospitais/estatística & dados numéricos , Avaliação de Resultados em Cuidados de Saúde/métodos , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/patologia , Procedimentos Cirúrgicos do Sistema Digestório/normas , Feminino , Humanos , Masculino , Padrões de Referência
6.
Head Neck ; 36(6): 853-8, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23720199

RESUMO

BACKGROUND: Intraoperative identification of parathyroid adenomas can be challenging. We hypothesized that low-doses methylene blue (MB) and near-infrared fluorescence (NIRF) imaging could be used to identify parathyroid adenomas intraoperatively. METHODS: MB was injected intravenously after exploration at a dose of 0.5 mg/kg into 12 patients who underwent parathyroid surgery. NIRF imaging was performed using the Mini-FLARE imaging system. RESULTS: In 10 of 12 patients, histology confirmed a parathyroid adenoma. In 9 of these patients, NIRF could clearly identify the parathyroid adenoma during surgery. Seven of these 9 patients had a positive preoperative (99m) Tc-sestamibi single photon emission CT (SPECT) scan. Importantly, in 2 patients, parathyroid adenomas could be identified only using NIRF. CONCLUSION: This is the first study to show that low-dose MB can be used as NIRF tracer for identification of parathyroid adenomas, and suggests a correlation with preoperative (99m) Tc-sestamibi SPECT scanning.


Assuntos
Adenoma/diagnóstico , Cuidados Intraoperatórios , Azul de Metileno , Neoplasias das Paratireoides/diagnóstico , Espectroscopia de Luz Próxima ao Infravermelho , Adenoma/cirurgia , Adolescente , Adulto , Idoso , Estudos de Viabilidade , Feminino , Fluorescência , Humanos , Cuidados Intraoperatórios/métodos , Masculino , Pessoa de Meia-Idade , Neoplasias das Paratireoides/cirurgia , Valor Preditivo dos Testes , Cuidados Pré-Operatórios/métodos , Compostos Radiofarmacêuticos , Sensibilidade e Especificidade , Espectroscopia de Luz Próxima ao Infravermelho/métodos , Tecnécio Tc 99m Sestamibi , Tomografia Computadorizada de Emissão de Fóton Único
7.
Eur J Public Health ; 24(1): 73-8, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23543677

RESUMO

RESEARCH OBJECTIVE: Reliable and unambiguously defined performance indicators are fundamental to objective and comparable measurements of hospitals' quality of care. In two separate case studies (intensive care and breast cancer care), we investigated if differences in definition interpretation of performance indicators affected the indicator scores. DESIGN: Information about possible definition interpretations was obtained by a short telephone survey and a Web survey. We quantified the interpretation differences using a patient-level dataset from a national clinical registry (Case I) and a hospital's local database (Case II). In Case II, there was additional textual information available about the patients' status, which was reviewed to get more insight into the origin of the differences. PARTICIPANTS: For Case I, we investigated 15 596 admissions of 33 intensive care units in 2009. Case II consisted of 144 admitted patients with a breast tumour surgically treated in one hospital in 2009. RESULTS: In both cases, hospitals reported different interpretations of the indicators, which lead to significant differences in the indicator values. Case II revealed that these differences could be explained by patient-related factors such as severe comorbidity and patients' individual preference in surgery date. CONCLUSIONS: With this article, we hope to increase the awareness on pitfalls regarding the indicator definitions and the quality of the underlying data. To enable objective and comparable measurements of hospitals' quality of care, organizations that request performance information should formalize the indicators they use, including standardization of all data elements of which the indicator is composed (procedures, diagnoses).


Assuntos
Hospitais/normas , Indicadores de Qualidade em Assistência à Saúde/normas , Centros Médicos Acadêmicos/normas , Centros Médicos Acadêmicos/estatística & dados numéricos , Neoplasias da Mama/cirurgia , Feminino , Pesquisas sobre Atenção à Saúde , Número de Leitos em Hospital , Hospitais de Ensino/normas , Hospitais de Ensino/estatística & dados numéricos , Humanos , Unidades de Terapia Intensiva/normas , Unidades de Terapia Intensiva/estatística & dados numéricos , Países Baixos/epidemiologia , Indicadores de Qualidade em Assistência à Saúde/estatística & dados numéricos , Qualidade da Assistência à Saúde/normas , Qualidade da Assistência à Saúde/estatística & dados numéricos , Sistema de Registros , Projetos de Pesquisa/normas , Projetos de Pesquisa/estatística & dados numéricos , Respiração Artificial/normas , Respiração Artificial/estatística & dados numéricos , Fatores de Tempo
8.
Med Decis Making ; 33(7): 906-19, 2013 10.
Artigo em Inglês | MEDLINE | ID: mdl-23819984

RESUMO

BACKGROUND: Undescended testis (UDT) or cryptorchidism is the most common genital anomaly seen in boys and can be treated surgically by orchidopexy. The age at which orchidopexy should be performed is controversial for both congenital and acquired UDT. METHODS: A decision analysis is performed in which all available knowledge is combined to assess the outcomes of orchidopexy at different ages. RESULTS: Without surgery, unilateral congenital UDT and bilateral congenital UDT are associated with average losses in quality-adjusted life-years (QALYs) of 1.53 QALYs (3% discounting 0.66 QALYs) and 5.23 QALYs (1.91 QALYs), respectively. Surgery reduces this QALY loss to on average 0.84 QALYs (0.21 QALYs) for unilateral UDT and 1.66 QALYs (0.40 QALYs) for bilateral UDT. Surgery at detection will lead to the lowest QALY loss of 0.91 (0.34) and 1.73 (0.60) QALYs, respectively, for unilateral and bilateral acquired UDT compared with surgery during puberty and no surgery. No sensitivity analysis is able to change the preferences for these strategies. CONCLUSIONS: Based on our decision analytic model using societal valuations of health outcomes, surgery for unilateral UDT (both congenital and acquired) yielded the lowest loss in QALYs. Given the modest differences in outcomes, there is room for patient (or parent) preference with respect to the performance and timing of surgery in case of unilateral UDT. For bilateral UDT (both congenital and acquired), orchidopexy at any age provides considerable benefit, in particular through improved fertility. As there is no strong effect of timing, the age at which orchidopexy is performed should be discussed with the parents and the patient. More clinical evidence on issues related to timing may in the future modify these results and hence this advice.


Assuntos
Criptorquidismo/cirurgia , Técnicas de Apoio para a Decisão , Humanos , Masculino , Probabilidade , Anos de Vida Ajustados por Qualidade de Vida
9.
BMC Health Serv Res ; 13: 212, 2013 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-23758921

RESUMO

BACKGROUND: For health care performance indicators (PIs) to be reliable, data underlying the PIs are required to be complete, accurate, consistent and reproducible. Given the lack of regulation of the data-systems used in the Netherlands, and the self-report based indicator scores, one would expect heterogeneity with respect to the data collection and the ways indicators are computed. This might affect the reliability and plausibility of the nationally reported scores. METHODS: We aimed to investigate the extent to which local hospital data collection and indicator computation strategies differ and how this affects the plausibility of self-reported indicator scores, using survey results of 42 hospitals and data of the Dutch national quality database. RESULTS: The data collection and indicator computation strategies of the hospitals were substantially heterogenic. Moreover, the Hip and Knee replacement PI scores can be regarded as largely implausible, which was, to a great extent, related to a limited (computerized) data registry. In contrast, Breast Cancer PI scores were more plausible, despite the incomplete data registry and limited data access. This might be explained by the role of the regional cancer centers that collect most of the indicator data for the national cancer registry, in a standardized manner. Hospitals can use cancer registry indicator scores to report to the government, instead of their own locally collected indicator scores. CONCLUSIONS: Indicator developers, users and the scientific field need to focus more on the underlying (heterogenic) ways of data collection and conditional data infrastructures. Countries that have a liberal software market and are aiming to implement a self-report based performance indicator system to obtain health care transparency, should secure the accuracy and precision of the heath care data from which the PIs are calculated. Moreover, ongoing research and development of PIs and profound insight in the clinical practice of data registration is warranted.


Assuntos
Benchmarking , Sistemas de Informação Hospitalar , Hospitais/normas , Indicadores de Qualidade em Assistência à Saúde/normas , Artroplastia de Quadril , Artroplastia do Joelho , Neoplasias da Mama , Estudos Transversais , Eficiência Organizacional , Feminino , Número de Leitos em Hospital , Humanos , Masculino , Países Baixos , Sistema de Registros , Reprodutibilidade dos Testes , Autorrelato , Inquéritos e Questionários
10.
Ann Surg ; 257(5): 916-21, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-22735713

RESUMO

OBJECTIVE: To investigate the safety of laparoscopic colorectal cancer resections in a nationwide population-based study. BACKGROUND: Although laparoscopic techniques are increasingly used in colorectal cancer surgery, little is known on results outside trials. With the fast introduction of laparoscopic resection (LR), questions were raised about safety. METHODS: Of all patients who underwent an elective colorectal cancer resection in 2010 in the Netherlands, 93% were included in the Dutch Surgical Colorectal Audit. Short-term outcome after LR, open resection (OR), and converted LR were compared in a generalized linear mixed model. We further explored hospital differences in LR and conversion rates. RESULTS: A total of 7350 patients, treated in 90 hospitals, were included. LR rate was 41% with a conversion rate of 15%. After adjustment for differences in case-mix, LR was associated with a lower risk of mortality (odds ratio 0.63, P < 0.01), major morbidity (odds ratio 0.72, P < 0.01), any complications (odds ratio 0.74, P < 0.01), hospital stay more than 14 days (odds ratio 0.71, P < 0.01), and irradical resections (odds ratio 0.68, P < 0.01), compared to OR. Outcome after conversion was similar to OR (P > 0.05). A large variation in LR and conversion rates among hospitals was found; however, the difference in outcome associated with operative techniques was not influenced by hospital of treatment. CONCLUSIONS: Use of laparoscopic techniques in colorectal cancer surgery in the Netherlands is safe and results are better in short-term outcome than open surgery, irrespective of the hospital of treatment. Outcome after conversion was similar to OR.


Assuntos
Colectomia/métodos , Neoplasias Colorretais/cirurgia , Procedimentos Cirúrgicos Eletivos/métodos , Laparoscopia , Reto/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Colectomia/mortalidade , Colectomia/estatística & dados numéricos , Neoplasias Colorretais/mortalidade , Conversão para Cirurgia Aberta/estatística & dados numéricos , Procedimentos Cirúrgicos Eletivos/mortalidade , Procedimentos Cirúrgicos Eletivos/estatística & dados numéricos , Feminino , Humanos , Laparoscopia/mortalidade , Laparoscopia/estatística & dados numéricos , Tempo de Internação/estatística & dados numéricos , Modelos Lineares , Modelos Logísticos , Masculino , Auditoria Médica , Pessoa de Meia-Idade , Análise Multivariada , Países Baixos , Complicações Pós-Operatórias/epidemiologia , Sistema de Registros , Resultado do Tratamento
11.
Surgery ; 152(1): 50-6, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22703895

RESUMO

BACKGROUND: The low incidence rate of adrenocortical carcinoma (ACC) requires a multidisciplinary approach in which surgery plays an essential role because complete resection of the primary tumor is the only chance of cure. To improve patient care, insight into operative results within the ACC population is essential. In 2007, a Dutch Adrenal Network Registry was created covering care and outcome of patients treated for ACC in the Netherlands since 1965. Using this database, we performed a study (1) to gain insight into surgical performance in the Netherlands and (2) to compare operative data with international literature. METHODS: Data on patients treated from 1965 until January 2008 were studied. The following data were collected: age, gender, functionality of the tumor, stage at diagnosis, operative procedure, completeness of surgery, disease recurrence, adjuvant mitotane therapy, and recurrence-free and overall survival (OS). RESULTS: A total of 175 patients were studied, of whom 149 underwent surgery. Patients with complete resection had significantly longer OS times than patients with incomplete resection (P = .010). Patients operated on in a Dutch Adrenal Network center had significantly longer duration of OS in both univariate (P = .011) and multivariate analysis (P = .014). A significantly greater OS was observed for operated stage IV patients compared with nonoperated patients (P = .002). CONCLUSION: Our data suggest the relevance of national cooperation and centralized surgery in ACC. For selected patients with stage IV disease, surgery can be beneficial in extending survival. On the basis of the retrospective analysis, operative ACC in the Netherlands can and will be improved.


Assuntos
Neoplasias do Córtex Suprarrenal/cirurgia , Carcinoma Adrenocortical/cirurgia , Serviços Centralizados no Hospital , Programas Nacionais de Saúde , Adolescente , Neoplasias do Córtex Suprarrenal/epidemiologia , Neoplasias do Córtex Suprarrenal/mortalidade , Carcinoma Adrenocortical/epidemiologia , Carcinoma Adrenocortical/mortalidade , Adulto , Idoso , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Recidiva Local de Neoplasia/epidemiologia , Países Baixos , Sistema de Registros , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento , Adulto Jovem
12.
J Clin Endocrinol Metab ; 97(7): 2243-55, 2012 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22511795

RESUMO

CONTEXT: The reported risk of hypothyroidism after hemithyroidectomy shows considerable heterogeneity in literature. OBJECTIVE: The aim of this systematic review and meta-analysis was to determine the overall risk of hypothyroidism, both clinical and subclinical, after hemithyroidectomy. Furthermore, we aimed to identify risk factors for postoperative hypothyroidism. DATA SOURCES: A systematic literature search was performed using several databases, including PubMed. STUDY SELECTION: Original articles in which an incidence or prevalence of hypothyroidism after primary hemithyroidectomy could be extracted were included. DATA EXTRACTION: Study identification and data extraction were performed independently by two reviewers. In case of disagreement, a third reviewer was consulted. DATA SYNTHESIS: A total of 32 studies were included in this meta-analysis. Meta-analysis was performed using logistic regression with random effect at study level. The overall risk of hypothyroidism after hemithyroidectomy was 22% (95% confidence interval, 19-27). A clear distinction between clinical (supranormal TSH levels and subnormal thyroid hormone levels) and subclinical (supranormal TSH levels and thyroid hormone levels within the normal range) hypothyroidism was provided in four studies. These studies reported on an estimated risk of 12% for subclinical hypothyroidism and 4% for clinical hypothyroidism. Positive anti-thyroid peroxidase status is a relevant preoperative indicator of hypothyroidism after surgery. Effect estimates did not differ substantially between studies with lower risk of bias and studies with higher risk of bias. CONCLUSIONS: This meta-analysis showed that approximately one in five patients will develop hypothyroidism after hemithyroidectomy, with clinical hypothyroidism in one of 25 operated patients.


Assuntos
Hipotireoidismo/etiologia , Complicações Pós-Operatórias/etiologia , Tireoidectomia/efeitos adversos , Tireoidectomia/métodos , Algoritmos , Humanos , Hipotireoidismo/diagnóstico , Hipotireoidismo/epidemiologia , Incidência , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/epidemiologia , Prognóstico , Fatores de Risco , Tireoidectomia/estatística & dados numéricos
13.
PLoS One ; 6(11): e27108, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-22096523

RESUMO

BACKGROUND: Effectiveness of Internet-based self-management in patients with asthma has been shown, but its cost-effectiveness is unknown. We conducted a cost-effectiveness analysis of Internet-based asthma self-management compared with usual care. METHODOLOGY AND PRINCIPAL FINDINGS: Cost-effectiveness analysis alongside a randomized controlled trial, with 12 months follow-up. Patients were aged 18 to 50 year and had physician diagnosed asthma. The Internet-based self-management program involved weekly on-line monitoring of asthma control with self-treatment advice, remote Web communications, and Internet-based information. We determined quality adjusted life years (QALYs) as measured by the EuroQol-5D and costs for health care use and absenteeism. We performed a detailed cost price analysis for the primary intervention. QALYs did not statistically significantly differ between the Internet group and usual care: difference 0.024 (95% CI, -0.016 to 0.065). Costs of the Internet-based intervention were $254 (95% CI, $243 to $265) during the period of 1 year. From a societal perspective, the cost difference was $641 (95% CI, $-1957 to $3240). From a health care perspective, the cost difference was $37 (95% CI, $-874 to $950). At a willingness-to-pay of $50,000 per QALY, the probability that Internet-based self-management was cost-effective compared to usual care was 62% and 82% from a societal and health care perspective, respectively. CONCLUSIONS: Internet-based self-management of asthma can be as effective as current asthma care and costs are similar. TRIAL REGISTRATION: Current Controlled Trials ISRCTN79864465.


Assuntos
Asma , Análise Custo-Benefício , Internet , Autocuidado/economia , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Anos de Vida Ajustados por Qualidade de Vida , Adulto Jovem
15.
Mod Pathol ; 24(5): 688-97, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21240254

RESUMO

Parathyroid carcinoma is associated with mutations in the HRPT2/CDC73 gene and with decreased parafibromin and calcium-sensing receptor (CASR) expression, but in some cases establishing an unequivocal diagnosis remains a challenge. The aim of our study was to evaluate the prognostic value of CASR and parafibromin expression and of HRPT2/CDC73 mutations in patients with an established diagnosis of parathyroid carcinoma. Data on survival and disease-free survival were obtained from hospital records of 23 patients with an established diagnosis of parathyroid carcinoma in whom CASR and parafibromin expression and HRPT2/CDC73 mutation analyses were available from paraffin-embedded pathological specimens. Kaplan-Meier curves were used for survival analysis. Downregulation of CASR expression, global loss of parafibromin staining and a HRPT2/CDC73 mutation were, respectively, found in 7 (30%), 13 (59%) and 4 (17%) patients, and were associated with, respectively, 16-fold, 4-fold and 7-fold increased risk of developing local or distant metastasis. These findings suggest that although downregulation of CASR expression, global loss of parafibromin staining and mutations in the HRPT2/CDC73 gene are tools of proven value to assist in establishing a diagnosis of parathyroid carcinoma, their absence does not exclude it. Notwithstanding, we demonstrate a significant added value of these markers as strong determinants of increased malignant potential and thus as negative prognostic markers in this malignancy.


Assuntos
Adenocarcinoma/diagnóstico , Regulação para Baixo/genética , Mutação , Neoplasias das Paratireoides/diagnóstico , Receptores de Detecção de Cálcio/genética , Proteínas Supressoras de Tumor/genética , Adenocarcinoma/genética , Adenocarcinoma/metabolismo , Adenocarcinoma/mortalidade , Adulto , Idoso , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/mortalidade , Países Baixos/epidemiologia , Neoplasias das Paratireoides/genética , Neoplasias das Paratireoides/metabolismo , Neoplasias das Paratireoides/mortalidade , Paratireoidectomia , Prognóstico , Receptores de Detecção de Cálcio/metabolismo , Taxa de Sobrevida , Proteínas Supressoras de Tumor/metabolismo
16.
World J Surg ; 35(1): 128-39, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20957360

RESUMO

BACKGROUND: In primary hyperparathyroidism (PHPT) the predictive value of technetium 99m sestamibi single emission computed tomography (Tc99m-MIBI-SPECT) for localizing pathological parathyroid glands before a first parathyroidectomy (PTx) is 83-100%. Data are scarce in patients undergoing reoperative parathyroidectomy for persistent hyperparathyroidism. The aim of the present study was to determine the value of Tc99m-MIBI-SPECT in localizing residual hyperactive parathyroid tissue in patients with persistent primary hyperparathyroidism (PHPT) after initial excision of one or more pathological glands. METHOD: We retrospectively evaluated the localizing accuracy of Tc99m-MIBI-SPECT scans in 19 consecutive patients with persistent PHPT who had a scan before reoperative parathyroidectomy. We used as controls 23 patients with sporadic PHPT who had a scan before initial surgery. RESULTS: In patients with persistent PHPT, Tc99m-MIBI-SPECT accurately localized a pathological parathyroid gland in 33% of cases before reoperative parathyroidectomy, compared to 61% before first PTx for sporadic PHPT. The Tc99m-MIBI-SPECT scan accurately localized intra-thyroidal glands in 2 of 7 cases and a mediastinal gland in 1 of 3 cases either before initial or reoperative parathyroidectomy. CONCLUSIONS: Our data suggest that the accuracy of Tc99m-MIBI-SPECT in localizing residual hyperactive glands is significantly lower before reoperative parathyroidectomy for persistent PHPT than before initial surgery for sporadic PHPT. These findings should be taken in consideration in the preoperative workup of patients with persistent primary hyperparathyroidism.


Assuntos
Hiperparatireoidismo Primário/diagnóstico por imagem , Compostos Radiofarmacêuticos , Tecnécio Tc 99m Sestamibi , Tomografia Computadorizada de Emissão de Fóton Único/métodos , Análise de Variância , Distribuição de Qui-Quadrado , Feminino , Humanos , Hiperparatireoidismo Primário/cirurgia , Masculino , Pessoa de Meia-Idade , Paratireoidectomia , Valor Preditivo dos Testes , Reoperação , Estudos Retrospectivos
17.
Eur J Endocrinol ; 163(6): 945-52, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20870706

RESUMO

INTRODUCTION: Localization studies are mandatory prior to revision surgery in patients with persistent hyperparathyroidism in order to improve surgical outcome and reduce the risk of lengthy explorations. However, in this case, noninvasive localization studies are reported to have a poor sensitivity. The aim of our study is to determine the accuracy of selective venous sampling (SVS) for parathyroid hormone (PTH) in localizing residual hyperactive parathyroid glands in patients with persistent or recurrent hyperparathyroidism. PATIENTS AND METHODS: We retrospectively evaluated the localizing accuracy of 20 PTH SVS performed prior to revision surgery in 18 patients with persistent or recurrent primary hyperparathyroidism (n=11) or autonomous (tertiary) hyperparathyroidism (n=7). Tc99m-methoxy-isobutyle-isonitrile (MIBI)-single photon emission computed tomography (SPECT) was also performed in all patients prior to revision surgery. Operative and pathological data were obtained from hospital records. RESULTS: The SVS was able to accurately localize 15 of the 20 pathological glands removed at revision surgery, representing a sensitivity of 75%. This sensitivity is significantly higher than that of Tc99m-MIBI-SPECT, which was only 30% (P=0.012). CONCLUSION: Our findings demonstrate that SVS is a valuable localization study in patients with persistent or recurrent hyperparathyroidism, with a sensitivity significantly higher than that of Tc99m-MIBI-SPECT. Our data suggest that SVS represents a useful addition to the preoperative workup of these patients prior to revision surgery.


Assuntos
Hiperparatireoidismo Primário/cirurgia , Hiperparatireoidismo/cirurgia , Hormônio Paratireóideo/sangue , Reoperação , Coristoma , Feminino , Humanos , Hiperparatireoidismo/diagnóstico por imagem , Hiperparatireoidismo Primário/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Glândulas Paratireoides/diagnóstico por imagem , Glândulas Paratireoides/patologia , Recidiva , Sensibilidade e Especificidade , Tecnécio Tc 99m Sestamibi , Tomografia Computadorizada de Emissão de Fóton Único , Veias
18.
Med Decis Making ; 30(5): 544-55, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20110514

RESUMO

OBJECTIVE: To assess whether patients use information on quality of care when choosing a hospital for surgery compared with more general hospital information. METHODS: In this cross-sectional study in 3 Dutch hospitals, questionnaires were sent to 2122 patients who underwent 1 of 6 elective surgical procedures in 2005-2006 (aorta reconstruction [for treatment of aneurysm], cholecystectomy, colon resection, inguinal hernia repair, esophageal resection, thyroid surgery). Patients were asked which information they had used to choose this hospital and which information they intended to use if they would need similar surgical treatment in the future. RESULTS: In total, 1329 questionnaires were available for analysis (response rate 62.6%). Most patients indicated having used the hospital's good reputation (69.1%) and friendly hospital atmosphere (63.3%) to choose a hospital. For future choices, most patients intended to use the fact that they were already treated in that hospital (79.3%) and the hospital's good reputation (74.1%). Regarding quality-of-care information, patients preferred a summary measure (% patients with ''textbook outcome'') over separate more detailed measures (52.1% v. 38.0%, χ2 = 291, P < 0.01). For future choices, patients intend to use more information items than in 2005-2006, both in absolute terms (9 v. 4 items, t = 38.3, P < 0.01) as relative to the total number of available items (41.3% [40.1%-42.5%] v. 29.2% [28.1%-30.2%]). CONCLUSION: Patients intended to use more information for future choices than they used for past choices. For future choices, most patients prefer a summary measure on quality of care over more detailed measures but seem to value that they were already treated in that hospital or a hospital's good reputation even more.


Assuntos
Comportamento de Escolha , Cirurgia Geral , Hospitais , Disseminação de Informação , Participação do Paciente , Qualidade da Assistência à Saúde , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Países Baixos , Inquéritos e Questionários
19.
Horm Cancer ; 1(4): 205-14, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21258429

RESUMO

A 29-year-old man presented to his primary care physician with nausea, severe weight loss and muscle weakness. He had a hard, fixed neck swelling. He was severely hypercalcaemic with 10-fold increased parathyroid hormone (PTH) concentrations. A diagnosis of primary hyperparathyroidism was established and the patient was referred for parathyroidectomy. At neck exploration, an enlarged parathyroid gland with invasive growth into the thyroid gland was found and removed, lymph nodes were cleared and hemithyroidectomy was performed. A suspected diagnosis of parathyroid carcinoma was confirmed histologically. Serum calcium and PTH levels normalised post-operatively, but hyperparathyroidism recurred within 3 years of surgery. Over the following 17 years, control of hypercalcaemia represented the most difficult challenge despite variable success achieved with repeated surgical interventions, embolisations, radiofrequency ablation of metastases and treatment with calcimimetics, bisphosphonates and haemodialysis using low-dialysate calcium. In this paper, we report the challenges and pitfalls we encountered in the management of our patient over nearly two decades of follow-up and review recent literature on the topic.


Assuntos
Hiperparatireoidismo Primário/diagnóstico , Neoplasias das Paratireoides/diagnóstico , Adulto , Diagnóstico Diferencial , Difosfonatos/uso terapêutico , Seguimentos , Humanos , Hipercalcemia/sangue , Hipercalcemia/tratamento farmacológico , Hipercalcemia/cirurgia , Hiperparatireoidismo Primário/sangue , Hiperparatireoidismo Primário/cirurgia , Masculino , Hormônio Paratireóideo/sangue , Neoplasias das Paratireoides/sangue , Neoplasias das Paratireoides/cirurgia , Paratireoidectomia , Diálise Renal
20.
Eur J Endocrinol ; 162(2): 399-406, 2010 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19884262

RESUMO

OBJECTIVE: Cure rate for primary hyperparathyroidism (PHPT) is reported to be 94-100% 1 year after surgery, but recent data suggest recurrence in 4% of the patients 1-5 years post-operatively. The aim of our study was to establish the cure rate and its maintenance in the long-term after parathyroidectomy (PTx) in patients with sporadic PHPT. DESIGN: Evaluation of recurrence in patients with sporadic hyperparathyroidism who underwent PTx 1-24 years prior to the study. PATIENTS AND METHODS: We identified 111 patients who underwent initial PTx between 1984 and 2008, and had no MEN-1, MEN-2, or CaR mutation; parathyroid carcinoma; a history of lithium use; or renal failure. Thirty-eight patients were lost to follow-up or were unwilling or unable to participate in the study. Cure was defined as maintenance of normal serum calcium and parathyroid hormone concentrations 6 months after PTx. RESULTS: Cure was achieved in 68 of 73 patients studied (93%) and was sustained in all for 6+/-5 years. CONCLUSION: The cure rate of sporadic PHPT after initial surgery is 93%. When cure is achieved, this is sustained in 100% of the patients for up to 24 years post-operatively. Our data suggest that closer early follow-up is advocated in all patients undergoing PTx to definitively establish cure and to provide a safety net for those with residual gland pathology. The data do not support the need for long-term follow-up when cure is established 6 months after PTx.


Assuntos
Hiperparatireoidismo Primário/cirurgia , Paratireoidectomia , Complicações Pós-Operatórias/prevenção & controle , Idoso , Cálcio/sangue , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Hiperparatireoidismo Primário/sangue , Masculino , Pessoa de Meia-Idade , Hormônio Paratireóideo/sangue , Complicações Pós-Operatórias/sangue , Valor Preditivo dos Testes , Prevenção Secundária , Fatores de Tempo
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