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1.
Int J Gynaecol Obstet ; 165(1): 117-124, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37962371

RESUMEN

OBJECTIVE: To enhance evidence-based knowledge on long-term sequalae in patients with surgically corrected obstructing Müllerian anomalies. METHODS: This long-term case-control study included patients with menstrual outflow obstruction due to congenital anomalies of the uterus or vagina, who were at least 18 years old, and for whom 2 years had elapsed since the first surgery at the start of this study. The control group consisted of women without current gynecological problems. Patients underwent a surgical correction at the Radboud University Medical Center Nijmegen between 1980 and 2013. Of 78 patients approached, 38 (49%) were included in this study. The control group consisted of 54 females. The main outcome measures were pain and health state. The following questionnaires were used: Visual Analogue Scale pain scores, European Quality of Life-5 Dimensions questionnaire (EQ-5D-3L) and the adapted Endometriosis Health Profile questionnaire (EHP-30). RESULTS: Patients had higher actual and maximum abdominal pain scores compared with controls (11 vs 0 [P = 0.007] and 48 vs 21 [P = 0.035], respectively). Based on the EQ-5D-3L scores, patients had more pain and discomfort (P = 0.005), more mood problems (P = 0.023), and a poorer subjective health state (P = 0.002) and self-rated health state (P = 0.031). Based on the EHP-30, patients had a significant poorer self-rated health state on four out of five subscales. CONCLUSION: In this study, following surgically corrected menstrual obstruction, patients had statistically significant higher abdominal pain scores and a poorer self-rated health state compared with controls.


Asunto(s)
Endometriosis , Calidad de Vida , Humanos , Femenino , Adolescente , Estudios de Casos y Controles , Encuestas y Cuestionarios , Dolor Abdominal , Estado de Salud
2.
Fertil Steril ; 120(5): 1048-1060, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37549836

RESUMEN

OBJECTIVE: To evaluate which girls with Turner syndrome (TS) could benefit from fertility preservation by ovarian tissue cryopreservation on the basis of karyotype, puberty status, and hormonal data. DESIGN: Prospective intervention study; participants were included between 2018 and 2020. SETTING: Tertiary hospital in the Netherlands. PATIENTS: In total, 106 girls with TS aged between 2 and 18 years were included. Girls with minor X chromosome deletions, Y chromosomal content, active infections, or contraindications for surgery were excluded. INTERVENTION: A laparoscopic unilateral ovariectomy was performed to obtain ovarian cortical tissue for cryopreservation. One tissue fragment per participant was used to determine the number of follicles per ovary by serial sectioning and staining. Chromosome analysis was performed on lymphocytes and buccal cells. A blood sample was taken before the ovariectomy for hormonal analysis. MAIN OUTCOME MEASURES: The presence of follicles in ovarian cortex tissue from girls with TS in relation to karyotype, puberty status, and hormonal data. RESULTS: A unilateral ovariectomy was performed on 93 girls with TS. Complications after surgery occurred in 5 girls, including luxation of psychological symptoms in 2 girls. In 13 (14%) girls, a 46,XX cell line was found in buccal cells that was absent in lymphocytes. Follicles were observed in 30 (32%) of the 93 girls and were found mainly in girls with a 46,XX cell line in lymphocytes or buccal cells (Phi coefficient = 0.55). Spontaneous onset of puberty (Phi coefficient = 0.59), antimüllerian hormone (AMH; point-biserial correlation [r] = 0.82), inhibin B (r = 0.67), and follicle-stimulating hormone (r = -0.46) levels were also correlated strongly with the presence of follicles. Furthermore, AMH levels had a significant correlation with the number of follicles per ovary (r = 0.66). CONCLUSION: Favorable predictive markers for the presence of follicles included either a 46,XX cell line, spontaneous onset of puberty, or a combination of measurable AMH and normal follicle-stimulating hormone levels. Karyotyping of two peripheral cell lines in girls with TS is recommended to reveal hidden mosaicisms. Ovarian tissue cryopreservation should be offered with caution in a research setting to those with a sufficient ovarian reserve, considering the significant loss of follicles after ovarian tissue cryopreservation and autotransplantation. Physicians should pay attention to the mental health of the girls during the whole process. CLINICAL TRIAL REGISTRATION NUMBER: Trial registration number: NCT03381300- Preservation of Ovarian Cortex Tissue in Girls With Turner Syndrome - Full Text View - ClinicalTrials.gov. Registered on: December 21, 2017. First patient recruited on January 1, 2018.


Asunto(s)
Preservación de la Fertilidad , Síndrome de Turner , Femenino , Humanos , Preescolar , Niño , Adolescente , Masculino , Ovario , Síndrome de Turner/complicaciones , Síndrome de Turner/diagnóstico , Síndrome de Turner/genética , Estudios Prospectivos , Congelación , Mucosa Bucal , Criopreservación , Hormona Folículo Estimulante
3.
Ned Tijdschr Geneeskd ; 1672023 06 28.
Artículo en Holandés | MEDLINE | ID: mdl-37493291

RESUMEN

In the Netherlands but also in many other countries, there is an increasing social discussion about gender identity and gender diversity, and an increasing number of children and adolescents are seeking medical help because of questions about their gender identity. The cause of this increase is still unknown. Gender questions are diverse and require an individual approach by a multidisciplinary team. A number of adolescents have additional problems such as mood problems, autistiform symptoms and systemic problems. Diagnosis and treatment takes place in accordance with the quality standard for transgender care somatic and psychological. Hormonal treatment can help to reduce gender dysphoria and improve mental health.


Asunto(s)
Personas Transgénero , Transexualidad , Humanos , Masculino , Femenino , Adolescente , Niño , Identidad de Género , Personas Transgénero/psicología , Países Bajos , Grupo de Atención al Paciente
4.
J Clin Med ; 11(15)2022 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-35893396

RESUMEN

BACKGROUND: The apparent absence of a uterus upon imaging women with primary amenorrhea appears to lead to a high risk of misdiagnosis, which will lead to significant mental distress in patients. CASE: Three young females with primary amenorrhea were referred with a diagnosis of Mayer-Rokitansky-Kuster-Hauser syndrome based on radiological findings of an apparently absent uterus. In two patients, the absence of the uterus could be confirmed, but with various diagnoses. The other patient had a normal but unstimulated uterus due to her hypoestrogenic state. SUMMARY AND CONCLUSION: The presented cases illustrate the broad differential diagnoses and the specific pitfalls of primary amenorrhea with an apparently absent uterus upon imaging. A well-established diagnosis was only possible through a thorough correlation of imaging findings with clinical history, biochemical findings and physical examination.

5.
Front Psychiatry ; 13: 846165, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35370821

RESUMEN

Background: There are only limited reports on the prevalence of restless legs syndrome (RLS) in patients with psychiatric disorders. The present study aimed to evaluate the prevalence and clinical correlates in psychiatric inpatients in Germany and Switzerland. Methods: This is a multicenter cross-sectional study of psychiatric inpatients with an age above 18 years that were diagnosed and evaluated face-to-face using the International RLS Study Group criteria (IRLSSG) and the International RLS severity scale (IRLS). In addition to sociodemographic and biometric data, sleep quality and mood were assessed using the Pittsburgh Sleep Quality Index (PSQI), the Insomnia Severity Index (ISI), the Epworth Sleepiness Scale (ESS), and the Patient Health Questionnaire (PHQ-9). In addition to univariate statistics used to describe and statistically analyze differences in variables of interest between patients with and without RLS, a logistic model was employed to identify predictors for the occurrence of RLS. Results: The prevalence of RLS in a sample of 317 psychiatric inpatients was 16.4%, and 76.9% of these were diagnosed with RLS for the first time. RLS severity was moderate to severe (IRLS ± SD: 20.3 ± 8.4). The prevalences in women (p = 0.0036) and in first-degree relatives with RLS (p = 0.0108) as well as the body mass index (BMI, p = 0.0161) were significantly higher among patients with RLS, while alcohol consumption was significantly lower in the RLS group. With the exception of atypical antipsychotics, treatment with psychotropic drugs was not associated with RLS symptoms. Regarding subjective sleep quality and mood, scores of the PSQI (p = 0.0007), ISI (p = 0.0003), and ESS (p = 0.0005) were higher in patients with RLS, while PHQ-9 scores were not different. A logistic regression analysis identified gender (OR 2.67; 95% CI [1.25; 5.72]), first-degree relatives with RLS (OR 3.29; 95% CI [1.11; 9.73], ESS score (OR 1.09; 95% CI [1.01; 1.17]), and rare alcohol consumption (OR 0.45; 95% CI [0.22; 0.94] as predictors for RLS. Conclusions: Clinically significant RLS had a high prevalence in psychiatric patients. RLS was associated with higher BMI, impaired sleep quality, and lower alcohol consumption. A systematic assessment of restless legs symptoms might contribute to improve the treatment of psychiatric patients.

6.
Asian J Androl ; 24(1): 15-20, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34135172

RESUMEN

Semen analysis is characterized by high levels of intra- and inter-laboratory variability, due to a low level of standardization, high subjectivity of the assessments, and problems with automated procedures. To improve consistency of laboratory results, quality control and training of technicians are important requisites. The goals of this study are to evaluate the results of an external quality control (EQC) program and standardized training by ESHRE Basic Semen Analysis Courses (BSAC) on the variability in manual assessments of semen parameters. We performed retrospective analyses of (1) the interlaboratory variability in the Dutch EQC program and (2) the interobserver variability in BSACs for concentration, motility, and morphology assessments. EQC data showed that the interlaboratory coefficient of variation (CV) for concentration assessment decreased (range from 24.0%-97.5% to 12.7%-20.9%) but not for morphology and motility assessments. Concentration variability was lower if improved Neubauer hemocytometers were used. Morphology assessment showed highest CVs (up to 375.0%), with many outliers in the period of 2007-2014. During BSAC, a significant reduction of interobserver variability could be established for all parameters (P < 0.05). The absence of an effect in the EQC program for motility and morphology might be explained by respectively the facts that motility assessment was introduced relatively late in the EQC program (since 2013) and that criteria for morphology assessment changed in time. BSAC results might have been influenced by the pretraining level of participants and the influence of external factors. Both EQC and training show positive effects on reducing variability. Increased willingness by laboratories to change their methods toward standards may lead to further improvements.


Asunto(s)
Análisis de Semen , Motilidad Espermática , Humanos , Países Bajos , Control de Calidad , Estudios Retrospectivos , Semen , Recuento de Espermatozoides
7.
Acta Obstet Gynecol Scand ; 98(5): 559-562, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30801655

RESUMEN

Due to advances in fertility preservation options and improvements in life expectancy, there is growing need for fertility preservation counseling for women at risk for premature ovarian insufficiency. The aim of this review is to provide an overview of various causes of female fertility loss and to raise awareness for counseling women about their options for fertility preservation. Furthermore, for counseling of women not only at the time of gonadotoxic treatment but also post-treatment and also of women with other benign causes of increased risk for impaired fertility or premature ovarian insufficiency.


Asunto(s)
Criopreservación/métodos , Preservación de la Fertilidad/métodos , Infertilidad Femenina , Ovario , Consejo , Femenino , Humanos , Enfermedad Iatrogénica/prevención & control , Infertilidad Femenina/etiología , Infertilidad Femenina/prevención & control
8.
Int Urogynecol J ; 23(3): 313-9, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21811768

RESUMEN

INTRODUCTION AND HYPOTHESIS: Pelvic organ prolapse (POP) and other disorders, such as varicose veins and joint hypermobility, have been associated with changes in collagen strength and metabolism. We hypothesized that these various disorders were more prevalent in both POP patients and their family members. METHODS: In this study, the prevalence of various collagen-associated disorders, including POP, was compared between POP patients (n = 110) and control patients (n = 100) and their first and second degree family members. RESULTS: POP patients reported a higher prevalence of varicose veins, joint hypermobility and rectal prolapse and were more likely to have family members with POP as compared to the control group (p < 0.01). In contrast, the family members of the POP group did not report a higher prevalence of collagen-associated disorders compared to the family members of the control group (p = 0.82). CONCLUSIONS: POP and other collagen-associated disorders may have a common aetiology, originating at the molecular level of the collagens.


Asunto(s)
Inestabilidad de la Articulación/epidemiología , Prolapso de Órgano Pélvico/epidemiología , Várices/epidemiología , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , Estudios de Cohortes , Enfermedades del Colágeno/epidemiología , Comorbilidad , Femenino , Humanos , Persona de Mediana Edad , Países Bajos/epidemiología , Prevalencia
9.
Acta Neuropathol ; 122(4): 467-79, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21785977

RESUMEN

Fragile X-associated tremor/ataxia syndrome (FXTAS) is an adult-onset neurodegenerative disorder generally presenting with intention tremor and gait ataxia, but with a growing list of co-morbid medical conditions including hypothyroidism, hypertension, peripheral neuropathy, and cognitive decline. The pathological hallmark of FXTAS is the presence of intranuclear inclusions in both neurons and astroglia. However, it is unknown to what extent such inclusions are present outside the central nervous system (CNS). To address this issue, we surveyed non-CNS organs in ten human cases with FXTAS and in a CGG repeat knock-in (CGG KI) mouse model known to possess neuronal and astroglial inclusions. We find inclusions in multiple tissues from FXTAS cases and CGG KI mice, including pancreas, thyroid, adrenal gland, gastrointestinal, pituitary gland, pineal gland, heart, and mitral valve, as well as throughout the associated autonomic ganglia. Inclusions were observed in the testes, epididymis, and kidney of FXTAS cases, but were not observed in mice. These observations demonstrate extensive involvement of the peripheral nervous system and systemic organs. The finding of intranuclear inclusions in non-CNS somatic organ systems, throughout the PNS, and in the enteric nervous system of both FXTAS cases as well as CGG KI mice suggests that these tissues may serve as potential sites to evaluate early intervention strategies or be used as diagnostic factors.


Asunto(s)
Ataxia/patología , Síndrome del Cromosoma X Frágil/genética , Síndrome del Cromosoma X Frágil/patología , Tamización de Portadores Genéticos , Temblor/patología , Anciano , Anciano de 80 o más Años , Animales , Ataxia/genética , Modelos Animales de Enfermedad , Femenino , Proteína de la Discapacidad Intelectual del Síndrome del Cromosoma X Frágil/genética , Técnicas de Sustitución del Gen , Humanos , Masculino , Ratones , Ratones Mutantes , Especificidad de Órganos/genética , Temblor/genética
10.
Genet Med ; 13(7): 643-50, 2011 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-21597380

RESUMEN

PURPOSE: Women who carry a fragile X mental retardation 1 premutation are at risk for fragile X-associated primary ovarian insufficiency and should be counseled for a potentially reduced fertility. Multiple factors can affect the age of onset and severity of fragile X-associated primary ovarian insufficiency. In this study, we assessed the predictive power of several factors with menopausal age, a surrogate measure of onset of fragile X-associated primary ovarian insufficiency. METHODS: Genetic, environmental, and reproductive factors were analyzed by Cox proportional hazard models in 1068 women, 385 of fragile X families ascertained through the Nijmegen study and 683 of fragile X families or general population families ascertained through the Atlanta study. RESULTS: The highest association with menopausal age among fragile X mental retardation 1 premutation carriers was found for risk index by CGG repeat size (hazard ratio, 1.43) and smoking (hazard ratio, 1.34). Women from the Nijmegen cohort showed an overall lower age at menopause onset, for which a correction was made. A prediction model based on these two parameters, mean menopausal age of first-degree relatives with the same mutation status and the correction for ascertainment site, estimated the probability of becoming postmenopausal for premutation carriers, with a margin of 7-10%. CONCLUSION: We conclude that this model serves as a first step toward clinical application of fragile X-associated primary ovarian insufficiency prediction.


Asunto(s)
Proteína de la Discapacidad Intelectual del Síndrome del Cromosoma X Frágil/genética , Síndrome del Cromosoma X Frágil/genética , Menopausia/genética , Insuficiencia Ovárica Primaria/genética , Adolescente , Adulto , Factores de Edad , Anciano , Secuencia de Bases , Estudios de Cohortes , Salud de la Familia , Femenino , Síndrome del Cromosoma X Frágil/complicaciones , Predisposición Genética a la Enfermedad , Heterocigoto , Humanos , Persona de Mediana Edad , Mutación , Insuficiencia Ovárica Primaria/complicaciones , Insuficiencia Ovárica Primaria/diagnóstico , Pronóstico , Modelos de Riesgos Proporcionales , Medición de Riesgo/estadística & datos numéricos , Factores de Riesgo , Encuestas y Cuestionarios , Expansión de Repetición de Trinucleótido/genética , Adulto Joven
11.
Am J Med Genet A ; 152A(2): 387-93, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-20101683

RESUMEN

Since only 20% of female fragile X premutation carriers develop premature ovarian failure (POF, i.e., amenorrhea before age of 40 years), and since X chromosome inactivation (XCI) determines the phenotypic severity of full mutation women, we reasoned that the development of POF in fragile X premutation carriers could be due to skewed XCI (XCI ratio >80:20). To determine inactivation ratios and activities of the premutations, inactivation patterns were assessed in peripheral blood samples from 101 fragile X premutation carriers (mean age 47.1 years, range 12-72) through analysis of the AR and FMR1 loci, respectively. In addition, AR inactivation patterns were assessed in peripheral blood samples from 25 women with idiopathic POF (mean age 31.7 years, range 19-48). We addressed the association between age and skewed XCI because older women are prone to XCI skewness. The median XCI ratios were 68% for premutation carriers with POF (N = 37), 67% for premutation carriers without POF (N = 64) and 61% for women with idiopathic POF (N = 25). The incidence of skewing was similar in all groups, that is, 7 of 37 (18.9%) in premutation carriers with POF, 11 of 64 (17.2%) in premutation carriers without POF, and 3 of 25 (12%) in women with idiopathic POF. There was good concordance between inactivation ratios at the two loci tested in 62 premutation carriers (intraclass correlation coefficient = 0.86; P < 0.01). No age-specific skewing was observed. Skewed XCI and activity of the premutation are not associated with POF in fragile X premutation carriers.


Asunto(s)
Cromosomas Humanos X , Síndrome del Cromosoma X Frágil/genética , Insuficiencia Ovárica Primaria/genética , Inactivación del Cromosoma X , Adulto , Factores de Edad , Estudios de Cohortes , Femenino , Proteína de la Discapacidad Intelectual del Síndrome del Cromosoma X Frágil/genética , Heterocigoto , Humanos , Incidencia , Cariotipificación , Persona de Mediana Edad , Fenotipo
12.
Arch Otolaryngol Head Neck Surg ; 130(4): 394-9, 2004 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-15096420

RESUMEN

OBJECTIVES: To assess the impact of a bone-anchored hearing aid (BAHA) on the quality of life (QOL) of adults and to test the hypothesis that a BAHA improves QOL because otorrhea and/or skin irritations decrease. DESIGN: Prospective postal-based questionnaire study using validated health-related QOL instruments, combined with hearing-aid-related questions. PATIENTS AND METHODS: The study included 56 consecutive adult patients with acquired conductive or mixed hearing loss who were scheduled for BAHA implantation at the University Medical Centre Nijmegen, Nijmegen, the Netherlands. All 56 patients completed the 36-Item Short-Form Health Survey (SF-36), the EuroQol-5D (EQ-5D), and the Hearing Handicap and Disability Inventory (HHDI); 36 patients had been using an air-conduction hearing aid (ACHA) and 20 patients a conventional bone-conduction hearing aid (CBHA). Questionnaires were filled out before surgery and after 6 months of experience with the BAHA. RESULTS: In the SF-36 group, there was significant improvement in the scores of the mental health domain (P =.02). When the SF-36 patients were classified according to previous hearing aid, there was no statistically significant change in the scores in any of the domains. In the EQ-5D group and in its ACHA and CBHA subgroups, there were no important differences in the results before and after the patients received their BAHAs. In the HHDI group, the handicap and disability scales showed significant improvement (P<.01) irrespective of the type of previously worn hearing aid. CONCLUSIONS: Overall, generic health-related QOL was not influenced significantly by the use of a BAHA according to the SF-36 and the EQ-5D. The more disease-specific scales (HHDI) did show improved QOL with a BAHA.


Asunto(s)
Conducción Ósea/fisiología , Audífonos/psicología , Trastornos de la Audición/terapia , Pérdida Auditiva Conductiva/rehabilitación , Implantación de Prótesis/psicología , Calidad de Vida/psicología , Adulto , Anciano , Anciano de 80 o más Años , Dermatitis Irritante/prevención & control , Dermatitis Irritante/psicología , Evaluación de la Discapacidad , Femenino , Trastornos de la Audición/fisiopatología , Trastornos de la Audición/psicología , Pérdida Auditiva Conductiva/fisiopatología , Pérdida Auditiva Conductiva/psicología , Humanos , Masculino , Persona de Mediana Edad , Otitis Externa/etiología , Otitis Externa/psicología , Satisfacción del Paciente , Diseño de Prótesis , Pruebas Psicológicas/estadística & datos numéricos , Psicometría
13.
Health Econ ; 12(11): 975-81, 2003 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-14601159

RESUMEN

BACKGROUND: The SF-6D is a new health state classification and utility scoring system based on 6 dimensions ('6D') of the Short Form 36, and permits a "bridging" transformation between SF-36 responses and utilities. The Health Utilities Index, mark 3 (HUI3) is a valid and reliable multi-attribute health utility scale that is widely used. We assessed within-subject agreement between SF-6D utilities and those from HUI3. METHODS: Patients at increased risk of sudden cardiac death and participating in a randomized trial of implantable defibrillator therapy completed both instruments at baseline. Score distributions were inspected by scatterplot and histogram and mean score differences compared by paired t-test. Pearson correlation was computed between instrument scores and also between dimension scores within instruments. Between-instrument agreement was by intra-class correlation coefficient (ICC). RESULTS: SF-6D and HUI3 forms were available from 246 patients. Mean scores for HUI3 and SF-6D were 0.61 (95% CI 0.60-0.63) and 0.58 (95% CI 0.54-0.62) respectively; a difference of 0.03 (p<0.03). Score intervals for HUI3 and SF-6D were (-0.21 to 1.0) and (0.30-0.95). Correlation between the instrument scores was 0.58 (95% CI 0.48-0.68) and agreement by ICC was 0.42 (95% CI 0.31-0.52). Correlations between dimensions of SF-6D were higher than for HUI3. CONCLUSIONS: Our study casts doubt on the whether utilities and QALYs estimated via SF-6D are comparable with those from HUI3. Utility differences may be due to differences in underlying concepts of health being measured, or different measurement approaches, or both. No gold standard exists for utility measurement and the SF-6D is a valuable addition that permits SF-36 data to be transformed into utilities to estimate QALYs. The challenge is developing a better understanding as to why these classification-based utility instruments differ so markedly in their distributions and point estimates of derived utilities.


Asunto(s)
Desfibriladores Implantables/economía , Infarto del Miocardio/terapia , Años de Vida Ajustados por Calidad de Vida , Perfil de Impacto de Enfermedad , Evaluación de la Tecnología Biomédica/métodos , Algoritmos , Análisis Costo-Beneficio , Muerte Súbita Cardíaca/prevención & control , Europa (Continente) , Femenino , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/economía , Infarto del Miocardio/fisiopatología , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Análisis de Regresión , Evaluación de la Tecnología Biomédica/economía
14.
Pharmacoeconomics ; 20(11): 727-38, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-12201792

RESUMEN

The implantable cardioverter defibrillator (ICD) is a therapy for patients at risk of sudden cardiac death due to ventricular tachycardia (VT) or ventricular fibrillation (VF). But the apparent high cost of ICD therapy relative to antiarrhythmic drugs such as amiodarone has raised questions about the cost effectiveness of ICD therapy versus drug therapy. To inform this debate we reviewed the literature on ICD cost effectiveness. An electronic and manual search was conducted for articles published since 1980 reporting original data on the cost effectiveness of ICD versus drug therapy for patients at risk of VT/VF. Data on costs and life-years gained were abstracted and studies were grouped into those that used decision-analysis models and those that were trial-based analyses. Cost-effectiveness ratios were inflated to 2001 US dollars. Nine studies were included in the review; five studies were modelling studies and four were part of randomised trials of ICD therapy. Studies varied in time horizon, but all except one indicated that ICD therapy was more costly than drug therapy. Early decision models assumed larger survival benefits than those observed in subsequent trials and therefore had attractive incremental cost-effectiveness ratios in the range of dollars US 27000 to dollars US 60000 per life-year gained. Trial-based studies, with the exception of one small trial, indicated cost per life-year gained in the range dollars US 44000 to dollars US 144000. Stratified analysis shows clearly that patients with a greater risk of mortality due to structural heart disease (e.g. left ventricular ejection fraction < or =35%) benefit more from ICD therapy and therefore have a more attractive cost effectiveness ratio than patients at lower risk. ICD therapy is still evolving over time with implant costs declining and device technology improving. Current evidence is that, in selected patients who are at high risk of VT/VF, ICD therapy can be a cost-effective option. Future research should focus on (i) patient selection to optimise benefits for available resources; and (ii) more comprehensive outcome measures to include health-related quality of life.


Asunto(s)
Muerte Súbita Cardíaca/prevención & control , Desfibriladores Implantables/economía , Quimioterapia/economía , Antiarrítmicos/economía , Antiarrítmicos/uso terapéutico , Ensayos Clínicos como Asunto , Análisis Costo-Beneficio , Humanos , Factores de Riesgo
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