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1.
Fam Process ; 59(4): 1648-1663, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-31647118

RESUMEN

Li-Fraumeni Syndrome (LFS) is a hereditary disorder that confers an approximately 90% lifetime risk of cancer and requires comprehensive lifetime cancer screening. We explored healthcare roles for managing LFS-related cancer risks and treatments that were assumed by parents, adolescents, and adult children. Semi-structured interviews were conducted with 23 families. Family groupings were comprised of 2-5 members, with the younger generation in each family ranging in age from 7 to 40 years. Using grounded theory methods, we conducted open and focused coding of interview transcript content. Family members described how the role of health leader was implemented in their family, as well as factors such as maturation of a child or death of a member that determined who assumed particular roles and how these roles shifted over time. They often expressed collective responsibility for helping relatives understand LFS and implement appropriate cancer risk management. Members demonstrated their health role by attending others' medical appointments for support or information gathering. The health leader role was intergenerational and provided the family necessary support in navigating complicated healthcare decisions. Our findings provide insight into healthcare providers regarding how LFS patients and their relatives develop unique medical decision-making and caring roles influenced by the hereditary nature of LFS, and how these roles change over time. Providers who are attuned to family role dynamics may be better able to meet relatives' psychosocial and medical needs by understanding how living with LFS influences the family system's functioning and facilitating members' support for each other.


El síndrome de Li-Fraumeni (LFS) es un trastorno hereditario que concede aproximadamente un 90 % de riesgo durante toda la vida de contraer cáncer y exige exámenes completos para la detección del cáncer de por vida. Analizamos los roles sanitarios a la hora de manejar los riesgos y los tratamientos de cáncer relacionados con el LFS que asumieron los padres, los adolescentes y los hijos adultos. Se realizaron entrevistas semiestructuradas con 23 familias. Los agrupamientos familiares estaban compuestos por entre 2 y 5 familiares, donde la edad de la generación más joven de cada familia oscilaba entre 7 y 40 años. Utilizando los métodos de la teoría fundamentada, realizamos una codificación abierta y centrada del contenido de la transcripción de la entrevista. Los miembros de la familia describieron cómo se implementó el rol de jefe de la salud en su familia, así como factores como la maduración de un niño o la muerte de un miembro que determinaron quiénes asumieron roles particulares y cómo estos roles cambiaron con el tiempo. Con frecuencia ellos expresaron la responsabilidad colectiva de ayudar a los familiares a comprender el LFS y a implementar el manejo adecuado del riesgo de contraer cáncer. Los familiares demostraron sus roles sanitarios asistiendo a citas médicas de los demás para recibir apoyo u obtener información. El rol de jefe sanitario fue intergeneracional y proporcionó a la familia el apoyo necesario para manejarse ante decisiones complicadas sobre la asistencia sanitaria. Nuestros resultados brindan información para los prestadores de servicios médicos con respecto a cómo los pacientes de LFS y sus familiares desarrollan roles únicos para la toma de decisiones médicas y el cuidado influenciados por la índole hereditaria del LFS, y cómo estos roles cambian con el tiempo. Es posible que los prestadores que estén acostumbrados a la dinámica de roles familiares sean más capaces de satisfacer las necesidades psicosociales y médicas de los familiares si comprenden cómo vivir con LFS influye en el funcionamiento del sistema familiar y si facilitan el apoyo mutuo de los familiares.


Asunto(s)
Salud de la Familia , Familia , Liderazgo , Síndrome de Li-Fraumeni , Rol , Adolescente , Adulto , Femenino , Humanos , Masculino , Adulto Joven , Familia/psicología , Composición Familiar , Teoría Fundamentada , Conductas Relacionadas con la Salud , Síndrome de Li-Fraumeni/psicología , Investigación Cualitativa
2.
J Psychosoc Oncol ; 37(2): 178-193, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30591002

RESUMEN

PURPOSE: Li-Fraumeni Syndrome (LFS) is an inherited tumor predisposition syndrome with lifetime cancer risks approaching 100% and evolving risk-management strategies. This study evaluated couples' coping with LFS-related burdens. RESEARCH APPROACH: Constructivist grounded theory and anticipatory loss frameworks guided design and analysis. SAMPLE AND METHODS: Twenty-six individuals enrolled in the NCI LFS Family Study completed semi-structured interviews with their partner during annual screening visits. An interdisciplinary team completed open and focused coding to identify patterns of coping and adaptation. FINDINGS: Couples described living with ambiguous danger, a state of chronic apprehension resulting from LFS-associated uncertainties. Most couples communicated openly and alternated shouldering the burden, while others engaged in protective buffering to shield each other from distress and sustain the appearance of normalcy. INTERPRETATION: Optimally, coping reduces shared psychosocial distress, yet some strategies may inadvertently increase disconnection. IMPLICATIONS: Mental health support is critical for both partners coping with LFS, together and separately.


Asunto(s)
Adaptación Psicológica , Relaciones Interpersonales , Síndrome de Li-Fraumeni/psicología , Tamizaje Masivo/psicología , Esposos/psicología , Incertidumbre , Adulto , Anciano , Femenino , Humanos , Síndrome de Li-Fraumeni/diagnóstico , Masculino , Persona de Mediana Edad , Distrés Psicológico , Investigación Cualitativa , Esposos/estadística & datos numéricos , Adulto Joven
3.
J Fam Nurs ; 25(1): 28-53, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30537877

RESUMEN

In families with hereditary breast/ovarian cancer, complex disease histories challenge established patterns of family communication and influence decision-making for clinical surveillance, genetic testing, and risk management. An interdisciplinary team examined longitudinal interview data from women with identified BRCA1/2 mutations to assess interactions within family and social networks about risk information communication and management. We used interpretive description to identify motivation, content, and derived benefit of these interactions. Participants discussed risk information and management strategies with biological and nonbiological network members for multiple purposes: discharging responsibility for risk information dissemination, protecting important relationships, and navigating decision trajectories. Evolving interactions with loved ones balanced long-standing family communication patterns with differing personal preferences for privacy or open sharing, whereas interactions with nonbiological network members expanded participants' range of choices for sources of risk management information. Ongoing assessment of social networks may help support engagement with risk management by aligning with patient social needs.


Asunto(s)
Proteína BRCA1 , Proteína BRCA2/genética , Neoplasias de la Mama/genética , Neoplasias de la Mama/psicología , Toma de Decisiones , Familia/psicología , Predisposición Genética a la Enfermedad , Neoplasias Ováricas/genética , Neoplasias Ováricas/psicología , Gestión de Riesgos , Red Social , Adulto , Femenino , Pruebas Genéticas , Humanos , Entrevistas como Asunto , Persona de Mediana Edad , Mutación , Linaje
4.
Cancer ; 122(23): 3673-3681, 2016 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-27496084

RESUMEN

BACKGROUND: Li-Fraumeni syndrome (LFS) is an autosomal dominant cancer predisposition syndrome characterized by a very high lifetime cancer risk and an early age at diagnosis of a wide cancer spectrum. Precise estimates for the risk of first and subsequent cancers are lacking. METHODS: The National Cancer Institute's Li-Fraumeni Syndrome Study includes families meeting the diagnostic criteria for LFS or Li-Fraumeni-like syndrome, and individuals with a germline TP53 mutation, choroid plexus carcinoma, adrenocortical carcinoma, or ≥3 cancers. Herein, we estimated the cumulative risk and annual hazards for first and second cancers among TP53 mutation carriers (TP53 positive [TP53+]) using MATLAB statistical software. RESULTS: This study evaluated 286 TP53+ individuals from 107 families. The cumulative cancer incidence was 50% by age 31 years among TP53+ females and 46 years among males, and nearly 100% by age 70 years for both sexes. Cancer risk was highest after age 20 years for females, mostly due to breast cancer, whereas among males the risk was higher in childhood and later adulthood. Among females, the cumulative incidence rates by age 70 years for breast cancer, soft tissue sarcoma, brain cancer, and osteosarcoma were 54%, 15%, 6%, and 5%, respectively. Among males, the incidence rates were 22%, 19%, and 11%, respectively, for soft tissue sarcoma, brain cancer, and osteosarcoma. Approximately 49% of those with 1 cancer developed at least another cancer after a median of 10 years. The average age-specific risk of developing a second cancer was comparable to that of developing a first cancer. CONCLUSIONS: The cumulative cancer risk in TP53 + individuals was very high and varied by sex, age, and cancer type. Additional work, including prospective risk estimates, is needed to better inform personalized risk management. Cancer 2016;122:3673-81. © 2016 American Cancer Society.


Asunto(s)
Mutación de Línea Germinal/genética , Síndrome de Li-Fraumeni/genética , Proteína p53 Supresora de Tumor/genética , Adolescente , Carcinoma Corticosuprarrenal/genética , Adulto , Neoplasias de la Mama/genética , Carcinoma/genética , Niño , Preescolar , Neoplasias del Plexo Coroideo/genética , Femenino , Predisposición Genética a la Enfermedad/genética , Genotipo , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , National Cancer Institute (U.S.) , Estudios Prospectivos , Riesgo , Sarcoma/genética , Estados Unidos , Adulto Joven
5.
Genet Med ; 18(12): 1218-1225, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27101135

RESUMEN

PURPOSE: To define the frequency with which adult research participants consent to be offered clinically validated research genetic test results (RR) and incidental findings (IF). METHODS: Consents were obtained from 506 adults enrolled in one of three studies within the National Cancer Institute Clinical Genetics Branch's Familial Cancer Research Program. A cross-sectional analysis was performed involving the choices indicated on study consents regarding receipt of RR and IF. RESULTS: Ninety-seven percent opted to receive RR and IF. Participants who declined (n = 16) included two cancer survivors who were mutation-positive (1 = RR and 1 = both), eight who knew their primary mutation status (3 = RR; 4 = IF; 1 = both), three nonbloodline relatives (1 = RR; 2 = both), one untested but with the syndromic phenotype (1 = IF), and two parents of an affected child (2 = both). We speculate that these individuals either already had sufficient information, were not prepared to learn more, or felt that the information would not change their personal health-care decision making. CONCLUSIONS: Adult research participants from families at high genetic risk for cancer overwhelmingly indicated their preference to receive both RR and IF. Future research will seek to identify the reasons for declining RR and IF and to study the impact of receipt of RR and IF on personal medical decision making.Genet Med 18 12, 1218-1225.


Asunto(s)
Pruebas Genéticas , Neoplasias/diagnóstico , Neoplasias/genética , Adulto , Femenino , Genómica , Humanos , Hallazgos Incidentales , Masculino , Mutación , Neoplasias/epidemiología , Neoplasias/patología , Padres , Investigación
6.
J Genet Couns ; 25(3): 529-42, 2016 06.
Artículo en Inglés | MEDLINE | ID: mdl-26621765

RESUMEN

This study presents findings of a mixed-method descriptive exploration of the role of friends and spirituality/religiosity in easing the burden of families with the rare inherited disorder, Li-Fraumeni Syndrome (LFS). LFS is caused by germline mutations in the TP53 gene and is associated with very high lifetime risk of developing one or more malignancies. During the first clinical visit we assessed several types of social support among a subset of study participants (N = 66) using an established interactive research tool called the Colored Eco-Genetic Relationship Map (CEGRM). We performed both quantitative and qualitative analyses of social relationships with LFS family members and close non-kin. Distress scores (N = 59) were mostly low normal, with some outliers. We found that reported friendships varied widely, that the friendships were often deep and enduring, and were important sources of informational, tangible, emotional and spiritual support. Confidantes tended to be best friends and/or spouses. Organized religion was important in selected families, typically from mainstream traditions. However, a number of people identified themselves as "spiritual" and reported spiritual and humanist explorations. Our results shed preliminary light on how some people in families with LFS cope in the face of tremendous medical, social and emotional challenges.


Asunto(s)
Familia/psicología , Síndrome de Li-Fraumeni/psicología , Apoyo Social , Estrés Psicológico , Adolescente , Adulto , Femenino , Genes p53 , Mutación de Línea Germinal , Humanos , Síndrome de Li-Fraumeni/genética , Masculino , Persona de Mediana Edad , Adulto Joven
7.
J Genet Couns ; 24(5): 760-70, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25540896

RESUMEN

Inherited bone marrow failure syndromes (IBMFS) including Fanconi anemia, dyskeratosis congenita, Diamond-Blackfan anemia, and Shwachman-Diamond syndrome are rare genetic disorders characterized by hematologic complications and increased risk of cancer. Patients and their families likely experience obstacles in obtaining sufficient health information given their disorders' rarity. To investigate this possibility, we examined information-seeking behaviors and levels of general and disorder-specific genetic knowledge among 315 members of 174 families with an IBMFS, and how information-seeking behaviors and socio-demographic factors may be associated with their genetic knowledge. Cross-sectional survey data indicated that participants were most likely to have ever used the Internet or healthcare providers for genetic information. On average, participants correctly answered 57 % of items assessing general genetic knowledge and 49-59 % of disorder-specific knowledge items. Greater knowledge was associated with greater education and ever experiencing genetic counseling, attending a scientific meeting, and seeking information from the Internet and scientific literature. Among families with Fanconi anemia (whose family support organization has the longest history of providing information), greater disorder-specific genetic knowledge was also associated with seeking information from support groups and other affected families. Results suggest that families with IBMFS have uncertainty regarding genetic aspects of their disorder, and highlight potential channels for delivering educational resources.


Asunto(s)
Actitud Frente a la Salud , Hemoglobinuria Paroxística/psicología , Conducta en la Búsqueda de Información , Aceptación de la Atención de Salud/psicología , Adulto , Anemia Aplásica , Anemia de Diamond-Blackfan/psicología , Enfermedades de la Médula Ósea/psicología , Trastornos de Fallo de la Médula Ósea , Estudios Transversales , Disqueratosis Congénita/psicología , Insuficiencia Pancreática Exocrina/psicología , Anemia de Fanconi/psicología , Femenino , Hemoglobinuria Paroxística/terapia , Humanos , Lipomatosis/psicología , Masculino , Persona de Mediana Edad , Síndrome de Shwachman-Diamond
8.
Hered Cancer Clin Pract ; 12(1): 3, 2014 Feb 21.
Artículo en Inglés | MEDLINE | ID: mdl-24559313

RESUMEN

BACKGROUND: Testicular germ cell tumor (TGCT) is the most common malignancy in young men. Familial clustering, epidemiologic evidence of increased risk with family or personal history, and the association of TGCT with genitourinary (GU) tract anomalies have suggested an underlying genetic predisposition. Linkage data have not identified a rare, highly-penetrant, single gene in familial TGCT (FTGCT) cases. Based on its association with congenital GU tract anomalies and suggestions that there is an intrauterine origin to TGCT, we hypothesized the existence of unrecognized dysmorphic features in FTGCT. METHODS: We evaluated 38 FTGCT individuals and 41 first-degree relatives from 22 multiple-case families with detailed dysmorphology examinations, physician-based medical history and physical examination, laboratory testing, and genitourinary imaging studies. RESULTS: The prevalence of major abnormalities and minor variants did not significantly differ between either FTGCT individuals or their first-degree relatives when compared with normal population controls, except for tall stature, macrocephaly, flat midface, and retro-/micrognathia. However, these four traits were not manifest as a constellation of features in any one individual or family. We did detect an excess prevalence of the genitourinary anomalies cryptorchidism and congenital inguinal hernia in our population, as previously described in sporadic TGCT, but no congenital renal, retroperitoneal or mediastinal anomalies were detected. CONCLUSIONS: Overall, our study did not identify a constellation of dysmorphic features in FTGCT individuals, which is consistent with results of genetic studies suggesting that multiple low-penetrance genes are likely responsible for FTGCT susceptibility.

10.
J Genet Couns ; 21(2): 151-61, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22134580

RESUMEN

Updated from their original publication in 2004, these cancer genetic counseling recommendations describe the medical, psychosocial, and ethical ramifications of counseling at-risk individuals through genetic cancer risk assessment with or without genetic testing. They were developed by members of the Practice Issues Subcommittee of the National Society of Genetic Counselors Familial Cancer Risk Counseling Special Interest Group. The information contained in this document is derived from extensive review of the current literature on cancer genetic risk assessment and counseling as well as the personal expertise of genetic counselors specializing in cancer genetics. The recommendations are intended to provide information about the process of genetic counseling and risk assessment for hereditary cancer disorders rather than specific information about individual syndromes. Essential components include the intake, cancer risk assessment, genetic testing for an inherited cancer syndrome, informed consent, disclosure of genetic test results, and psychosocial assessment. These recommendations should not be construed as dictating an exclusive course of management, nor does use of such recommendations guarantee a particular outcome. These recommendations do not displace a health care provider's professional judgment based on the clinical circumstances of a client.


Asunto(s)
Asesoramiento Genético , Pruebas Genéticas , Neoplasias/genética , Medición de Riesgo , Predisposición Genética a la Enfermedad , Humanos , Recursos Humanos
11.
J Genet Couns ; 20(5): 450-64, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21547418

RESUMEN

Family communication is essential for accurate cancer risk assessment and counseling; family blockers play a role in this communication process. This qualitative analysis of social exchanges is an extension of earlier work characterizing those who are perceived by study participants as health information gatherers, disseminators, and blockers within families with Hereditary Breast and Ovarian Cancer (HBOC) susceptibility. Eighty-nine women, ages 23-56 years, enrolled in a Breast Imaging Study (BIS) and participated in a sub-study utilizing a social assessment tool known as the Colored Ecological Genetic Relational Map (CEGRM). Purposive sampling ensured that participants varied according to numbers of participating family members e.g., ranging from 1 to 6. Eighty-nine women from 42 families (1-8 relatives/family) participated. They collectively designated 65 blockers, both male and female. Situational factors, beliefs, attitudes and cultural traditions, privacy and protectiveness comprised perceived reasons for blocking intra-family health communications. Longitudinal data collected over 4 years showed families where blocking behavior was universally recognized and stable over time, as well as other families where blocking was less consistent. Self-blocking was observed among a significant minority of participating women. Blocking of health communications among family members with HBOC was variable, complex, and multifaceted. The reasons for blocking were heterogeneous; duration of the blocking appeared to depend on the reasons for blocking. Blocking often seemed to involve bi-directional feedback loops, in keeping with Lepore's Social Constraints and Modulation Theory. Privacy and protectiveness predominated as explanations for long-term blocking.


Asunto(s)
Neoplasias de la Mama/genética , Predisposición Genética a la Enfermedad , Neoplasias Ováricas/genética , Comunicación Persuasiva , Adulto , Neoplasias de la Mama/psicología , Femenino , Humanos , Persona de Mediana Edad , Neoplasias Ováricas/psicología
12.
Br J Haematol ; 150(2): 179-88, 2010 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-20507306

RESUMEN

Fanconi anaemia (FA), dyskeratosis congenita (DC), Diamond-Blackfan anaemia (DBA), and Shwachman-Diamond syndrome (SDS) comprise major inherited bone marrow failure syndromes (IBMFS). Adverse events include severe bone marrow failure (BMF), myelodysplastic syndrome (MDS), acute myeloid leukaemia (AML), and solid tumours (ST). The natural history of FA is well characterised; hazard rates in the other syndromes have not yet been quantified. An open cohort was established at the National Cancer Institute (NCI) in 2002. Patients enrolled prior to December, 2007 were followed up to December, 2008. Diagnoses were confirmed with standard tests. Age-associated risks of adverse events were calculated. Most patients in each syndrome survived to young adulthood. Patients with FA had earlier onset of cancers, need for stem cell transplant, and death; followed by DC; DBA and SDS were mildest. While FA and DC patients had markedly increased risks of cancer, AML and MDS, there were no cases of leukaemia in DBA or SDS patients. The NCI cohort provides the first direct quantitative comparison of timing and magnitude of cancer risk in the IBMFS. The findings demonstrate that both FA and DC are major cancer susceptibility syndromes. The IBMFS, historically considered paediatric disorders, have important management implications for physicians treating adult patients.


Asunto(s)
Enfermedades de la Médula Ósea/complicaciones , Enfermedades Genéticas Congénitas/complicaciones , Neoplasias/etiología , Adolescente , Adulto , Distribución por Edad , Anemia de Diamond-Blackfan/complicaciones , Anemia de Diamond-Blackfan/genética , Enfermedades de la Médula Ósea/genética , Niño , Preescolar , Disqueratosis Congénita/complicaciones , Disqueratosis Congénita/genética , Métodos Epidemiológicos , Anemia de Fanconi/complicaciones , Anemia de Fanconi/genética , Femenino , Enfermedades Genéticas Congénitas/genética , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/genética , Pronóstico , Síndrome , Adulto Joven
13.
Am J Public Health ; 99(12): 2203-9, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19833996

RESUMEN

OBJECTIVES: Given the importance of the dissemination of accurate family history to assess disease risk, we characterized the gatherers, disseminators, and blockers of health information within families at high genetic risk of cancer. METHODS: A total of 5466 personal network members of 183 female participants of the Breast Imaging Study from 124 families with known mutations in the BRCA1/2 genes (associated with high risk of breast, ovarian, and other types of cancer) were identified by using the Colored Eco-Genetic Relationship Map (CEGRM). Hierarchical nonlinear models were fitted to characterize information gatherers, disseminators, and blockers. RESULTS: Gatherers of information were more often female (P<.001), parents (P<.001), and emotional support providers (P<.001). Disseminators were more likely female first- and second-degree relatives (both P<.001), family members in the older or same generation as the participant (P<.001), those with a cancer history (P<.001), and providers of emotional (P<.001) or tangible support (P<.001). Blockers tended to be spouses or partners (P<.001) and male, first-degree relatives (P<.001). CONCLUSIONS: Our results provide insight into which family members may, within a family-based intervention, effectively gather family risk information, disseminate information, and encourage discussions regarding shared family risk.


Asunto(s)
Salud de la Familia , Relaciones Familiares , Conocimientos, Actitudes y Práctica en Salud , Conducta en la Búsqueda de Información , Neoplasias/genética , Adulto , Familia , Femenino , Genes BRCA1 , Genes BRCA2 , Humanos , Difusión de la Información , Persona de Mediana Edad , Adulto Joven
14.
BMC Womens Health ; 9: 20, 2009 Jul 14.
Artículo en Inglés | MEDLINE | ID: mdl-19602282

RESUMEN

BACKGROUND: Ductal lavage (DL) has been proposed as a minimally-invasive, well-tolerated tool for obtaining breast epithelial cells for cytological evaluation of breast cancer risk. We report DL tolerability in BRCA1/2 mutation-positive and -negative women from an IRB-approved research study. METHODS: 165 BRCA1/2 mutation-positive, 26 mutation-negative and 3 mutation unknown women underwent mammography, breast MRI and DL. Psychological well-being and perceptions of pain were obtained before and after DL, and compared with pain experienced during other screening procedures. RESULTS: The average anticipated and experienced discomfort rating for DL, 47 and 48 (0-100), were significantly higher (p < 0.01) than the anticipated and experienced discomfort of mammogram (38 and 34), MRI (36 and 25) or nipple aspiration (42 and 27). Women with greater pre-existing emotional distress experienced more DL-related discomfort than they anticipated. Women reporting DL-related pain as worse than expected were nearly three times more likely to refuse subsequent DL than those reporting it as the same or better than expected. Twenty-five percent of participants refused repeat DL at first annual follow-up. CONCLUSION: DL was anticipated to be and experienced as more uncomfortable than other procedures used in breast cancer screening. Higher underlying psychological distress was associated with decreased DL tolerability.


Asunto(s)
Biomarcadores de Tumor/análisis , Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Mama/patología , Adulto , Análisis de Varianza , Líquidos Corporales/citología , Neoplasias de la Mama/psicología , Citodiagnóstico/métodos , Femenino , Genes BRCA1 , Genes BRCA2 , Predisposición Genética a la Enfermedad , Humanos , Persona de Mediana Edad , Dimensión del Dolor/métodos , Análisis de Regresión , Estrés Psicológico/diagnóstico , Estrés Psicológico/etiología , Irrigación Terapéutica
15.
Cancer Epidemiol Biomarkers Prev ; 28(2): 293-302, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30692095

RESUMEN

BACKGROUND: Eligibility guidelines for genetic testing may be revisited, given technological advances, plummeting costs, and proposals for population mutation screening. A key property of eligibility criteria is the tradeoff between the number of mutation carriers identified versus population members tested. We assess the fractions of mutation carriers identified, versus women undergoing mutation testing, for BRCA1/2 founder mutation screening in U.S. Ashkenazi-Jewish women. METHODS: BRCA1/2 carrier probabilities, based on personal/family history, were calculated using the risk-prediction tool BRCAPRO for 4,589 volunteers (102 mutation carriers) in the population-based Washington Ashkenazi Study. For each carrier-probability threshold between 0% and 10%, we compared the percentage of founder mutations detected versus the percentage of women requiring mutation testing. PCR mutation testing was conducted at the NIH for the 3 Ashkenazi-Jewish founder mutations (5382insC and 185delAG in BRCA1, and 6174delT in BRCA2). RESULTS: Identifying 90% of BRCA1/2 founder mutations required testing the 60% of Ashkenazi-Jewish women with carrier probabilities exceeding 0.56%, potentially avoiding mutation testing for approximately 0.7 to 1.1 million U.S. Ashkenazi-Jewish women. Alternatively, testing the 44% whose carrier probability exceeded 0.78% identified 80% of mutation carriers, increasing to 89% of mutation carriers when accounting for cascade testing triggered after mutation-positive daughters were identified by screening. We present data on all carrier-probability thresholds, e.g., a 5% threshold identified 46% of mutation carriers while testing 10% of women. CONCLUSIONS: Different carrier-probability thresholds offered diverse tradeoffs between numbers of identified mutation carriers versus women tested. Low carrier-probability thresholds identified 90% of BRCA1/2 founder mutation carriers, without testing approximately 1 million U.S. Ashkenazi-Jewish women with lowest carrier probabilities. IMPACT: In general, this risk-based framework could provide useful new options to consider during eligibility-criteria development for population mutation screening.


Asunto(s)
Proteína BRCA1/genética , Proteína BRCA2/genética , Pruebas Genéticas , Mutación , Adulto , Femenino , Humanos , Judíos/genética , Persona de Mediana Edad , Linaje , Guías de Práctica Clínica como Asunto , Estados Unidos
16.
Am J Med Genet A ; 146A(21): 2719-24, 2008 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-18831063

RESUMEN

Ethical assessments of clinical decisions are typically based on the preferences and interests of the individual patient. However, some clinical interventions, such as genetic testing or organ donation, may involve multiple family members. In these cases, one family member may have the potential to benefit, while another family member is exposed to potential physical or psychological risk. In the research setting, the balancing of benefits and risks between family members may be further complicated by uncertainty about their magnitude and likelihood. In addition, when the individual facing these apparently uncompensated risks is a child, the situation becomes particularly ethically complicated, as we appreciated in a recent case. Investigators at the National Cancer Institute were faced with a decision about whether it would be appropriate to disclose apparently "unwanted" research test results (length of telomeres in leukocyte subsets) to an adolescent about risk of future disease (dyskeratosis congenita), possibly causing psychological harm and an ethical wrong. These issues were not expected at the outset of the family's study participation but rather emerged with new data about the research tests. Disclosure of the research finding was an important consideration in order to avoid using the adolescent as a stem-cell donor for his sister. Disclosure to the adolescent could not be justified by merely considering the immediate interests and preferences of the adolescent. However, an expanded ethical analysis that considers the adolescent's familial context offers a more complete picture of the adolescent's interests and preferences which provides justification for disclosure.


Asunto(s)
Anemia Aplásica/genética , Anemia Aplásica/terapia , Revelación/ética , Disqueratosis Congénita/genética , Disqueratosis Congénita/terapia , Trasplante de Células Madre Hematopoyéticas/ética , Donadores Vivos/ética , Adolescente , Adulto , Anemia Aplásica/etiología , Disqueratosis Congénita/complicaciones , Familia , Femenino , Trasplante de Células Madre Hematopoyéticas/psicología , Prueba de Histocompatibilidad , Humanos , Donadores Vivos/psicología , Masculino , National Cancer Institute (U.S.) , Hermanos , Telómero/genética , Estados Unidos
17.
Psychooncology ; 17(8): 812-21, 2008 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-18688790

RESUMEN

OBJECTIVE: We investigated the association between psychological distress and indices of social integration and communal coping among sisters from hereditary breast and ovarian cancer (HBOC) families. SAMPLE AND METHODS: Sixty-five sisters from 31 HBOC families completed the Brief Symptom Inventory-18 and the Colored Eco-Genetic Relationship Map, which identified members of participants' social support networks. Hierarchical linear models were used for all analyses to account for the clustering of sisters within families. RESULTS: Intra-family correlation coefficients suggested that sisters shared perceptions of breast cancer risk and worry, but not ovarian cancer risk and worry. Further, sisters demonstrated shared levels of anxiety and somatization, but not depressive symptoms. Communal coping indices quantifying shared support resources were negatively related to anxiety and somatization. The number of persons with whom cancer risk information was shared exhibited a positive trend with somatization. Social integration, as measured by the size of participants' emotional support network, was negatively associated with anxiety. Lower depression scores were observed among participants with more persons playing multiple support roles and fewer persons providing tangible assistance. CONCLUSION: Understanding how support relationships impact well-being among persons adjusting to HBOC risk, and the particular role of family in that process, will facilitate developing appropriate management approaches to help cancer-prone families adjust to their cancer risk.


Asunto(s)
Adaptación Psicológica , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/genética , Conducta Cooperativa , Neoplasias Ováricas/epidemiología , Neoplasias Ováricas/genética , Calidad de Vida/psicología , Hermanos/psicología , Apoyo Social , Adulto , Neoplasias de la Mama/psicología , Depresión/epidemiología , Depresión/psicología , Femenino , Genes BRCA1 , Genes BRCA2 , Humanos , Persona de Mediana Edad , Neoplasias Ováricas/psicología , Mutación Puntual/genética , Relaciones entre Hermanos , Encuestas y Cuestionarios , Adulto Joven
18.
Health Expect ; 11(3): 220-31, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18816319

RESUMEN

BACKGROUND: When women from families with a known BRCA1 or BRCA2 mutation test negative for the family mutation, it is assumed that they will transition their personal cancer risk perception from high to average risk. However, there are scant data regarding the experience of mutation-negative women after genetic testing disclosure, particularly related to the shift of risk perception from assumed mutation-positive to actual mutation-negative. This study was designed to explore cancer risk perception and the experience of being a mutation-negative woman within a known BRCA1/2 mutation-positive family. METHODS: We employed a qualitative descriptive design and convened a sample of 13 women who contributed in-depth, semi-structured telephone interviews (audio-recorded and transcribed verbatim) and performed qualitative content analysis with NVivo 2.0 software. RESULTS: Six major content areas emerged from interview data: (i) rationale for initial involvement in the breast imaging study, (ii) rationale for continued participation, (iii) experience of living in a multiple-case family, (iv) risk perception: the personal meaning of mutation-negative status, (v) opinions regarding cancer aetiology and (vi) communication patterns between mutation-negative and mutation-positive family members. CONCLUSIONS: Living in a hereditary breast and ovarian cancer family is a complex experience that affects cognitive, emotional and social functioning. Our findings indicate that mutation-negative women may have unmet psychosocial needs that must be addressed by health-care professionals, particularly in the primary-care setting following genetic disclosure of a potentially reassuring result regarding their lack of the very high cancer risks associated with BRCA1/2 mutations.


Asunto(s)
Proteína BRCA1/genética , Proteína BRCA2/genética , Neoplasias de la Mama/genética , Salud de la Familia , Predisposición Genética a la Enfermedad/psicología , Pruebas Genéticas , Conocimientos, Actitudes y Práctica en Salud , Neoplasias Ováricas/genética , Medición de Riesgo , Adulto , Afecto , Altruismo , Neoplasias de la Mama/psicología , Cognición , Comunicación , Toma de Decisiones , Femenino , Asesoramiento Genético , Humanos , Persona de Mediana Edad , Neoplasias Ováricas/psicología , Investigación Cualitativa
19.
J Genet Couns ; 17(4): 351-64, 2008 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-18481162

RESUMEN

PURPOSE: It was our aim to determine baseline levels of testicular cancer and genetics knowledge among members of families with Familial Testicular Cancer (FTC). METHODS: This is a sub-study of an ongoing National Cancer Institute (NCI) multidisciplinary, etiologically-focused, cross-sectional study of FTC. We evaluated 258 male and female participants including testicular cancer (TC) survivors, blood relatives and spouses to assess factors associated with a Genetic Knowledge Scale (GKS) and Testicular Cancer Knowledge Scale (TCKS). RESULTS: Knowledge levels were generally low, with genetic knowledge lower than TC knowledge (p < 0.01). Men with a personal TC history scored highest on TC knowledge, while gender, age and education differentially influenced knowledge levels, particularly among unaffected relatives. CONCLUSIONS: Prior to identifying FTC susceptibility genes, we recommend tailoring FTC genetic education to the different informational needs of TC survivors, their spouses and relatives, in preparation for the day when clinical susceptibility testing may be available.


Asunto(s)
Familia/psicología , Neoplasias Testiculares/genética , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Asesoramiento Genético , Predisposición Genética a la Enfermedad , Humanos , Masculino , Persona de Mediana Edad , Modelos Psicológicos , Neoplasias Testiculares/psicología
20.
BMC Complement Altern Med ; 8: 17, 2008 Apr 30.
Artículo en Inglés | MEDLINE | ID: mdl-18447953

RESUMEN

BACKGROUND: Complementary and alternative medicine (CAM) use is well documented among breast cancer patients and survivors, but little evidence is available to describe rates and patterns of use among women at increased genetic risk of breast cancer. METHODS: A pre-visit telephone interview was conducted to ascertain CAM use among the BRCA mutation carriers enrolled in a high-risk breast cancer screening study. Participants were asked to report on their use of thirteen therapies within the year prior to enrollment into the study. Logistic regression was used to evaluate the association between various factors and CAM use in this population. RESULTS: Among the 164 BRCA1 or BRCA2 mutation-positive (BRCA+) women in this analysis, 78% reported CAM use, with prayer and lifestyle diet being the two most commonly reported modalities. Many subjects used multiple CAM therapies, with 34% reporting use of three or more modalities. The most commonly used modalities were mind-body therapies and biologically-based practices, 61.6% and 51.8%, respectively. High-risk women were more likely to use CAM if they were older, more educated, more worried about ovarian cancer risk, or had a previous cancer diagnosis. CONCLUSION: This study suggests that the prevalence of CAM use is high among BRCA mutation carriers, with frequency of use comparable to that of breast cancer patients and survivors. Given the high prevalence of CAM use in our subjects, especially biologically-based therapies including herbal supplements, whose safety and efficacy in relation to cancer risk are unknown, our study suggests that future research is necessary to clarify these risks, and that it is important for providers to inquire about and to discuss the pros and cons of CAM use with their BRCA+ patients.


Asunto(s)
Neoplasias de la Mama/genética , Neoplasias de la Mama/prevención & control , Terapias Complementarias/estadística & datos numéricos , Conductas Relacionadas con la Salud , Conocimientos, Actitudes y Práctica en Salud , Autocuidado/estadística & datos numéricos , Adulto , Terapias Complementarias/psicología , Femenino , Genes BRCA1 , Genes BRCA2 , Humanos , Persona de Mediana Edad , Prevalencia , Gestión de Riesgos , Autocuidado/psicología , Encuestas y Cuestionarios , Sobrevivientes/estadística & datos numéricos , Salud de la Mujer
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