Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 115
Filtrar
Más filtros

Banco de datos
Tipo del documento
Intervalo de año de publicación
1.
Br J Cancer ; 130(8): 1348-1355, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38347093

RESUMEN

BACKGROUND: Bevacizumab is a beneficial therapy in several advanced cancer types. Predictive biomarkers to better understand which patients are destined to benefit or experience toxicity are needed. Associations between bevacizumab induced hypertension and survival have been reported but with conflicting conclusions. METHODS: We performed post-hoc analyses to evaluate the association in 3124 patients from two phase III adjuvant breast cancer trials, E5103 and BEATRICE. Differences in invasive disease-free survival (IDFS) and overall survival (OS) between patients with hypertension and those without were compared. Hypertension was defined as systolic blood pressure (SBP) ≥ 160 mmHg (n = 346) and SBP ≥ 180 mmHg (hypertensive crisis) (n = 69). Genomic analyses were performed to evaluate germline genetic predictors for the hypertensive crisis. RESULTS: Hypertensive crisis was significantly associated with superior IDFS (p = 0.015) and OS (p = 0.042), but only IDFS (p = 0.029; HR = 0.28) remained significant after correction for prognostic factors. SBP ≥ 160 mmHg was not associated with either IDFS or OS. A common single-nucleotide polymorphism, rs6486785, was significantly associated with hypertensive crisis (p = 8.4 × 10-9; OR = 5.2). CONCLUSION: Bevacizumab-induced hypertensive crisis is associated with superior outcomes and rs6486785 predicted an increased risk of this key toxicity.


Asunto(s)
Neoplasias de la Mama , Hipertensión , Crisis Hipertensiva , Femenino , Humanos , Bevacizumab/efectos adversos , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/genética , Neoplasias de la Mama/inducido químicamente , Células Germinativas , Hipertensión/inducido químicamente
2.
Ann Surg Oncol ; 30(6): 3701-3711, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36840861

RESUMEN

BACKGROUND: Resection of soft-tissue sarcomas from the adductor compartment is associated with significant complications. Free/pedicled flaps often are used for wound closure, but their effect on healing is unclear. We compared wound complications, oncologic, and functional outcomes for patients undergoing flap reconstruction or primary closure following resection of adductor sarcomas. METHODS: A total of 177 patients underwent resection of an adductor sarcoma with primary closure (PrC) or free/pedicled flap reconstruction (FR). Patient, tumor, and treatment characteristics were compared, as well as wound complications, oncologic, and functional outcomes (TESS/MSTS87/MSTS93). To examine the relative benefit of flap reconstruction, number needed to treat (NNT) was calculated. RESULTS: In total, 143 patients underwent PrC and 34 had FR, 68% of which were pedicled. There were few differences in demographic, tumor, or treatment characteristics. No significant difference was found in the rate of wound complications. Length of stay was significantly longer in FR (18 days vs. PrC 8 days; p < 0.01). Oncologic and functional outcomes were similar over 5 years follow-up. Uncomplicated wound healing occurred more often in FR compared with PrC for tumors with ≥15 cm (NNT = 8.4) or volumes ≥ 800 ml (NNT = 8.4). Tumors ≤ 336 ml do not benefit from a flap, whereas those > 600 ml are 1.5 times more likely to heal uneventfully after flap closure. CONCLUSIONS: Although flap use prolonged hospitalization, it decreased wound healing complications for larger tumors, and in all sized tumors, it demonstrated similar functional and oncologic outcomes to primary closure. Our size-based treatment criteria can help to identify patients with large adductor sarcomas who could benefit from flap reconstruction. LEVEL OF EVIDENCE III: (Retrospective cohort study).


Asunto(s)
Colgajos Tisulares Libres , Procedimientos de Cirugía Plástica , Sarcoma , Neoplasias de los Tejidos Blandos , Humanos , Muslo/cirugía , Muslo/patología , Estudios Retrospectivos , Colgajos Tisulares Libres/cirugía , Sarcoma/cirugía , Sarcoma/patología , Neoplasias de los Tejidos Blandos/cirugía , Neoplasias de los Tejidos Blandos/patología
3.
J Adv Nurs ; 79(10): 3837-3847, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37283322

RESUMEN

AIMS: To explore clinical supervision practice by Victorian Maternal and Child Health nurses, identify the self-reported supervision needs of nurses and the facilitators and barriers to meeting those needs. BACKGROUND: Community-based Maternal and Child Health nurses have responsibilities for the safety and wellbeing of children and specific clinical support needs. Clinical supervision has the potential to support nurses' clinical practice and reflective skills; however, little is known internationally about child and family health nurses' supervision practices. DESIGN: Qualitative descriptive study. METHODS: Twenty-three semi-structured interviews were conducted between October and December 2021 with nurses, managers and supervisors across metropolitan, regional/rural areas of Victoria, Australia. Inductive thematic analysis was applied to the data. The Consolidated Criteria for Reporting Qualitative Research guided this study. RESULTS: Three main themes, with subthemes were generated; 'Understand what we do', 'It's the gathering of the nurses' and 'Bringing a case'. A lack of agreed purpose, aims and varied understandings of clinical supervision contributed to suboptimal clinical supervision. Although participants agreed about the importance of clinical supervision, the perceived benefits were inconsistently realized. CONCLUSIONS: This study points to a need for greater organizational awareness of the conditions and leadership needed to build reflective skills and culture in community-based child and family nursing. REPORTING METHOD: The Consolidated Criteria for Reporting Qualitative Research has guided this study. NO PATIENT OR PUBLIC CONTRIBUTION: There was no patient or public contribution in the conduct of this study. IMPACT: A stronger focus is needed to build reflective culture and skill in child and family nursing. Areas for improving child and family nurses' use of clinical supervision have been identified. This study can inform nurse education, policy and service leaders, to strengthen clinical supervision in child and family nursing contexts.


Asunto(s)
Salud Infantil , Enfermeras y Enfermeros , Niño , Humanos , Preceptoría , Investigación Cualitativa , Victoria
4.
Ann Surg Oncol ; 29(1): 522-532, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34409543

RESUMEN

BACKGROUND: Radiation-associated angiosarcoma (RAAS) of the breast is an aggressive malignancy affecting 1 in 1000 breast cancer patients. This study aimed to determine differences in treatments and outcomes for RAAS initially managed through a sarcoma multi-disciplinary team (SMDT) compared with an outside center (OC) and to describe outcomes after recurrence. METHODS: Patients with a diagnosis of breast RAAS between 2004 and 2019 were identified from our sarcoma database. Clinicopathologic characteristics, recurrence patterns, and factors predictive of survival were assessed. Differences in local recurrence-free survival (LRFS) and disease-specific survival (DSS) were estimated using Kaplan-Meier and compared using the log-rank test. RESULTS: Surgery was performed for 49 women with RAAS, who had a median age of 74 years (range 41-89 years). Primary management was performed by SMDT for 26 patients and by OC for 23 patients. Radical mastectomy and reconstruction were performed for 96% of the SMDT group versus 17% of the OC group (p = 0.00001). The proportion patients who received chemotherapy, radiation, or both was 42.3% in the SMDT group and 0% in the OC group. During a median follow-up period of 26 months, recurrence was experienced by 38% (10/26) of the SMDT cohort and 83% (19/23) of the OC cohort (p = 0.002). The 3-year LRFS was better in the SMDT cohort (59.3% vs 31.8%; p = 0.019). Of the 29 recurrences 16 received chemotherapy and 6 received radiation, surgery, or both. At the last follow-up visit, 20 patients were in first remission, 1 patient was in second remission, 8 patients were alive with disease, and 20 patients had died of disease. CONCLUSION: Initial treatment by SMDT was associated with more extensive surgery, multimodal treatments, and a better 3-year LRFS. Patients with breast RAAS likely benefit from early referral and treatment by an SMDT.


Asunto(s)
Neoplasias de la Mama , Hemangiosarcoma , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/terapia , Femenino , Hemangiosarcoma/etiología , Hemangiosarcoma/terapia , Humanos , Estudios Interdisciplinarios , Mastectomía , Persona de Mediana Edad
5.
Ann Surg Oncol ; 28(11): 5985-5998, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33821345

RESUMEN

INTRODUCTION: Rates of bilateral mastectomy are rising in women with unilateral, nonhereditary breast cancer. We aim to characterize how psychosocial outcomes evolve after breast cancer surgery. PATIENTS AND METHODS: We performed a prospective cohort study of women with unilateral, sporadic stage 0-III breast cancer at University Health Network in Toronto, Canada between 2014 and 2017. Women completed validated psychosocial questionnaires (BREAST-Q, Impact of Event Scale, Hospital Anxiety & Depression Scale) preoperatively, and at 6 and 12 months following surgery. Change in psychosocial scores was assessed between surgical groups using linear mixed models, controlling for age, stage, and adjuvant treatments. P < .05 were significant. RESULTS: A total of 475 women underwent unilateral lumpectomy (42.5%), unilateral mastectomy (38.3%), and bilateral mastectomy (19.2%). There was a significant interaction (P < .0001) between procedure and time for breast satisfaction, psychosocial and physical well-being. Women having unilateral lumpectomy had higher breast satisfaction and psychosocial well-being scores at 6 and 12 months after surgery compared with either unilateral or bilateral mastectomy, with no difference between the latter two groups. Physical well-being declined in all groups over time; scores were not better in women having bilateral mastectomy. While sexual well-being scores remained stable in the unilateral lumpectomy group, scores declined similarly in both unilateral and bilateral mastectomy groups over time. Cancer-related distress, anxiety, and depression scores declined significantly after surgery, regardless of surgical procedure (P < .001). CONCLUSIONS: Psychosocial outcomes are not improved with contralateral prophylactic mastectomy in women with unilateral breast cancer. Our data may inform women considering contralateral prophylactic mastectomy.


Asunto(s)
Neoplasias de la Mama , Mamoplastia , Neoplasias de Mama Unilaterales , Neoplasias de la Mama/cirugía , Femenino , Humanos , Estudios Longitudinales , Mastectomía , Estudios Prospectivos
6.
Ann Surg Oncol ; 28(6): 3345-3353, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33005992

RESUMEN

BACKGROUND: Flap reconstruction plays an important role in limb preservation after wide resection of extremity soft tissue sarcoma (ESTS), but can be associated with high rates of postoperative wound complications. Currently, no standardized system exists for the classification of these complications. This study aimed to develop a standardized classification system for wound complications after ESTS flap reconstruction. METHODS: Outcomes of ESTS flap reconstructions were analyzed in a retrospective cohort of 300 patients. All wound- and flap-related complications were identified and categorized. Based on these data, a scoring system was developed and validated with a prospective cohort of 100 patients who underwent ESTS flap reconstruction. RESULTS: A 10-point scoring system was developed based on the level of intervention required to treat each complication observed in the retrospective cohort. Raters applied the scoring system to the prospective patient cohort. Validation studies demonstrated excellent inter-rater and intra-rater reliability (weighted Cohen's kappa range, 0.82 [95% CI, 0.5-1.0] to 0.99 [95% CI, 0.98-1.0] and 0.95 [95% CI, 0.84-1.0] to 0.97 [95% CI, 0.92-1.0], respectively). The majority of the raters reported the score to be simple, objective, and reproducible (respective mean scores, 4.76 ± 0.43, 4.53 ± 0.62, and 4.56 ± 0.56 on 5-point Likert scales). CONCLUSION: The Toronto Sarcoma Flap Score (TSFS) is a simple and objective classification system with excellent inter- and intra-rater reliability. Universal adoption of the TSFS could standardize outcome reporting in future studies and aid in the establishment of clinical benchmarks to improve the quality of care in sarcoma reconstruction.


Asunto(s)
Procedimientos de Cirugía Plástica , Sarcoma , Neoplasias de los Tejidos Blandos , Extremidades/cirugía , Humanos , Recuperación del Miembro , Estudios Prospectivos , Reproducibilidad de los Resultados , Estudios Retrospectivos , Sarcoma/cirugía , Neoplasias de los Tejidos Blandos/cirugía , Resultado del Tratamiento
7.
Ann Plast Surg ; 86(3S Suppl 2): S159-S164, 2021 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-33208650

RESUMEN

BACKGROUND: Despite the recent surge in rates of immediate breast reconstruction, there is a paucity of large multicenter studies to compare differences in morbidity after immediate versus delayed breast reconstruction. This study used the National Surgical Quality Improvement Program (NSQIP) to study the association between timing of breast reconstruction and complication rates, stratified by reconstructive modality. STUDY DESIGN: The NSQIP database was used to identify breast reconstructions from 2005 to 2012. Rates of major complications were compared by timing within each reconstructive modality (implant vs autologous). Cohort differences in baseline characteristics and variables associated with increased complication rates were identified in bivariate analyses. A multivariable model was created to compare the association between the timing of reconstruction and major complications. RESULTS: Of 24,506 postmastectomy reconstructions, 85.8% were immediate, 14.2% were delayed, 84% were implant, and 16% were autologous reconstructions. Overall, 10.0% of patients suffered a major complication. After stratification, only implant reconstructions showed a statistically higher complication rate with immediate (8.8%) reconstruction compared with delayed (5.3%) (odds ratio, 1.7, P < 0.01). There was no significant difference in complication rates between autologous immediate (18.4%) or delayed (19.0%) reconstructions. After controlling for baseline cohort differences and other risk factors, immediate reconstruction remained as an independent significant predictor of major complications in implant reconstructions (odds ratio, 1.8, P < 0.01). CONCLUSIONS: Immediate rather than delayed breast reconstruction is associated with a significantly higher rate of major complications in implant reconstruction but not in autologous reconstruction. It is important to include these findings in the routine preoperative surgeon-patient discussion of reconstructive options.


Asunto(s)
Implantes de Mama , Neoplasias de la Mama , Mamoplastia , Implantes de Mama/efectos adversos , Humanos , Mamoplastia/efectos adversos , Mastectomía , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/cirugía , Mejoramiento de la Calidad , Estudios Retrospectivos
8.
Ann Plast Surg ; 86(6): 695-700, 2021 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-33252432

RESUMEN

BACKGROUND: Whether to undergo postmastectomy breast reconstruction (PMBR) is a challenging, preference-sensitive decision. It is therefore paramount to optimize decision quality through ensuring patients' knowledge and aligning treatments with their personal preferences. This study assessed the effects of a preconsultation educational group intervention (PEGI) on patient knowledge, state-trait anxiety, and decisional conflict (patient uncertainty in decision making) during the decision-making process. METHODS: This phase 3 randomized controlled trial assessed effects of a PEGI in women without active breast cancer undergoing delayed PMBR, or prophylactic mastectomy with immediate PMBR. Both groups underwent routine education before consultation. In addition, the intervention group underwent a PEGI composed of presentations from a plastic surgeon and nurse, a value clarification exercise, and shared experiences from PMBR patients before the consultation with the plastic surgeon. Before and 1-week after consultation, outcome measures were assessed using the Decisional Conflict Scale, State-Trait Anxiety Inventory, and the BREAST-Q. RESULTS: Of the 219 women deemed eligible, a total of 156 women were recruited and randomized. Treatment fidelity was 96% and retention was 88%. At baseline, there were no significant differences in terms of demographic or clinical status, knowledge, state-trait anxiety, and decisional conflict. Patient knowledge about PMBR improved in both groups; however, the degree of knowledge attainment was significantly greater in the PEGI group (24.5% improvement in the intervention group compared with 13.5% in the routine education group, P < 0.001). The reduction in decisional conflict from baseline to follow-up was greater in the intervention group compared with the routine education; however, the difference only approached significance (P = 0.09). CONCLUSIONS: The provision of a preconsultation educational group intervention has been shown to significantly close the knowledge gap on PMBR in patients seeking delayed breast reconstruction or prophylactic mastectomy with immediate breast reconstruction compared with routine education alone.


Asunto(s)
Neoplasias de la Mama , Mamoplastia , Mastectomía Profiláctica , Neoplasias de la Mama/cirugía , Toma de Decisiones , Técnicas de Apoyo para la Decisión , Femenino , Humanos , Mastectomía
9.
Ann Surg Oncol ; 27(9): 3466-3475, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32152777

RESUMEN

BACKGROUND: Despite high success rates, flap failure remains an inherent risk in microvascular breast reconstruction. Identifying patients who are at high risk for flap failure would enable us to recommend alternative reconstructive techniques. However, as flap failure is a rare event, identification of risk factors is statistically challenging. Machine learning is a form of artificial intelligence that automates analytical model building. It has been proposed that machine learning can build superior prediction models when the outcome of interest is rare. METHODS: In this study we evaluate machine learning resampling and decision-tree classification models for the prediction of flap failure in a large retrospective cohort of microvascular breast reconstructions. RESULTS: A total of 1012 patients were included in the study. Twelve patients (1.1%) experienced flap failure. The ROSE informed oversampling technique and decision-tree classification resulted in a strong prediction model (AUC 0.95) with high sensitivity and specificity. In the testing cohort, the model maintained acceptable specificity and predictive power (AUC 0.67), but sensitivity was reduced. The model identified four high-risk patient groups. Obesity, comorbidities and smoking were found to contribute to flap loss. The flap failure rate in high-risk patients was 7.8% compared with 0.44% in the low-risk cohort (p = 0.001). CONCLUSIONS: This machine-learning risk prediction model suggests that flap failure may not be a random event. The algorithm indicates that flap failure is multifactorial and identifies a number of potential contributing factors that warrant further investigation.


Asunto(s)
Neoplasias de la Mama/cirugía , Supervivencia de Injerto , Aprendizaje Automático , Mamoplastia , Colgajos Quirúrgicos/efectos adversos , Colgajos Quirúrgicos/irrigación sanguínea , Adulto , Anciano , Inteligencia Artificial , Reglas de Decisión Clínica , Árboles de Decisión , Femenino , Humanos , Mamoplastia/efectos adversos , Mamoplastia/métodos , Microcirculación , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Factores de Riesgo
10.
Cancer ; 125(22): 3966-3973, 2019 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-31435939

RESUMEN

BACKGROUND: The rates of contralateral prophylactic mastectomy (CPM) are increasing in women with breast cancer. Previous retrospective research has examined clinical and demographic predictors of the uptake of CPM. However, to the authors' knowledge, there has been very little prospective research to date that has examined psychosocial functioning prior to breast cancer surgery to determine whether psychosocial functioning predicts uptake of CPM. The current study was conducted to evaluate demographic, clinical, and psychosocial predictors of the uptake of CPM in women with unilateral breast cancer without a BRCA1 or BRCA2 mutation. METHODS: Women with unilateral non-BRCA-associated breast cancer completed questionnaires prior to undergoing breast cancer surgery. Participants completed demographic and psychosocial questionnaires assessing anxiety, depression, cancer-related distress, optimism/pessimism, breast satisfaction, and quality of life. Pathological and surgical data were collected from medical charts. RESULTS: A total of 506 women consented to participate, 112 of whom (22.1%) elected to undergo CPM. Age was found to be a significant predictor of CPM, with younger women found to be significantly more likely to undergo CPM compared with older women (P < .0001). The rate of CPM was significantly higher in women with noninvasive breast cancer compared with those with invasive breast cancer (P < .0001). Women who elected to undergo CPM had lower levels of presurgical breast satisfaction (P = .01) and optimism (P = .05) compared with women who did not undergo CPM. CONCLUSIONS: Psychosocial functioning at the time of breast cancer surgery decision making impacts decisions related to CPM. Women who have lower levels of breast satisfaction (body image) and optimism are more likely to elect to undergo CPM. It is important for health care providers to take psychosocial functioning into consideration when discussing surgical options.


Asunto(s)
Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/cirugía , Mastectomía Profiláctica , Ansiedad , Neoplasias de la Mama/etiología , Neoplasias de la Mama/prevención & control , Depresión , Femenino , Genes BRCA1 , Genes BRCA2 , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Ontario/epidemiología , Pronóstico , Vigilancia en Salud Pública , Encuestas y Cuestionarios
11.
Ann Surg Oncol ; 26(8): 2444-2451, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31062209

RESUMEN

PURPOSE: To compare psychosocial function outcomes in early breast cancer patients treated with breast-conserving surgery (BCS), mastectomy alone (MA), and mastectomy with immediate breast reconstruction (IBR) at 1 year after surgery. METHODS: Early-stage (stage 0-2) breast cancer patients treated with BCS, MA, and IBR at the University Health Network, Toronto, Ontario, Canada between May 1 2015 and July 31 2016 were prospectively enrolled. Their changes in psychosocial functioning from baseline to 12 months following surgery were compared by using the BREAST-Q, Hospital Anxiety and Depression Scale, and Impact of Event Scale with ANOVA and linear regression. RESULTS: There were 303 early-stage breast cancer patients: 155 underwent BCS, 78 MA, and 70 IBR. After multivariable regression accounting for age, baseline score, income, education, receipt of chemoradiation or hormonal therapy, ethnicity, cancer stage, and unilateral versus bilateral surgery, breast satisfaction was highest in BCS (72.1, SD 19.6), followed by IBR (60.0, SD 18.0), and MA (49.9, SD 78.0) at 12 months, p < 0.001. Immediate breast reconstruction had similar psychosocial well-being (69.9, SD 20.6) compared with BCS (78.5, SD 20.6), p = 0.07. Sexual and chest physical well-being were similar between IBR, BCS, and MA, p > 0.05. CONCLUSIONS: Our study found that in a multidisciplinary breast cancer centre where all three breast ablative and reconstruction options are available to early breast cancer patients, either BCS or IBR can be used to provide patients with a higher degree of satisfaction and psychosocial well-being compared with MA in the long-term.


Asunto(s)
Neoplasias de la Mama/psicología , Mamoplastia/psicología , Mastectomía Segmentaria/psicología , Mastectomía/psicología , Calidad de Vida , Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Canadá , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Satisfacción del Paciente , Estudios Prospectivos
12.
J Surg Oncol ; 119(3): 388-396, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30562406

RESUMEN

BACKGROUND AND OBJECTIVES: The deep inferior epigastric perforator (DIEP) flap may be associated with less long-term donor-site morbidity compared with free muscle-sparing transverse rectus abdominis myocutaneous flap (MS-TRAM) flap. However, DIEP flaps may have longer operative time and higher rates of acute postoperative complications. We performed a cost-effectiveness analysis (CEA) that compared the long-term costs and patient-reported outcomes between the two flaps. METHODS: A retrospective cohort of women who received free MS-TRAM or DIEP flap reconstruction between January 2008 and December 2012, with a minimum of 2-year follow-up, were recruited. Cost data of the primary reconstruction and any subsequent hospitalization due to complications from the reconstruction within 2 years were obtained. Each patient received a BREAST-Q questionnaire at 2 years post-reconstruction. RESULTS: In total, 227 patients (180 DIEP, 47 free MS-TRAM) were included. DIEP patients had significantly fewer abdominal hernia (P = 0.04). The adjusted-incremental cost-effectiveness ratios found that DIEP flap was more cost-effective to free MS-TRAM flap in the domains of "Physical Well-Being of the Abdomen" and "Satisfaction with Outcome." CONCLUSIONS: DIEP flap is the more cost-effective method of autologous breast reconstruction in the long-term compared with free MS-TRAM flap with respect to patient-reported abdominal well-being and overall satisfaction with the outcome.


Asunto(s)
Neoplasias de la Mama/economía , Análisis Costo-Beneficio , Arterias Epigástricas/trasplante , Colgajos Tisulares Libres/trasplante , Mamoplastia/economía , Complicaciones Posoperatorias/economía , Recto del Abdomen/trasplante , Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Femenino , Estudios de Seguimiento , Colgajos Tisulares Libres/irrigación sanguínea , Humanos , Persona de Mediana Edad , Colgajo Perforante/irrigación sanguínea , Pronóstico , Recto del Abdomen/irrigación sanguínea , Estudios Retrospectivos
13.
J Surg Oncol ; 120(7): 1177-1183, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31562830

RESUMEN

BACKGROUND: Immediate breast reconstruction has many advantages but is associated with higher complication rates than delayed reconstruction. Complications can delay the delivery of adjuvant cancer treatments. This study aimed to develop and validate a risk stratification model for the prediction of perioperative complications in immediate microvascular breast reconstruction. METHODS: The association between patient and treatment variables and perioperative complications was evaluated in a retrospective cohort of 351 women undergoing immediate breast reconstruction using free deep inferior epigastric artery perforator flaps. Multivariable logistic regression was used to determine the strength of association and weighted scores were assigned. Using cumulative risk scores, patients were stratified into low, intermediate, and high-risk groups. The model was then validated in a prospective cohort of 100 consecutive patients. RESULTS: Obesity, smoking, prior radiation, and comorbidities were important predictors and incorporated into the risk model. Complications occurred in 23.5% of low-risk (95% confidence interval [CI] = 17.7-29.2), 38.4% of intermediate-risk (95% CI = 29.2-47.5) and 53.9% of high-risk (95% CI = 33.3-74.4) patients. Validation confirmed a linear relationship between the risk stratification categories and complications in a model with good predictive power (c-statistic = 0.7, 95% CI = 0.6-0.8). CONCLUSION: A simple risk score, based on known preoperative variables, provides accurate risk stratification for patients considering immediate microvascular breast reconstruction.


Asunto(s)
Neoplasias de la Mama/cirugía , Mamoplastia/efectos adversos , Modelos Estadísticos , Complicaciones Posoperatorias/etiología , Medición de Riesgo/métodos , Neoplasias de la Mama/irrigación sanguínea , Neoplasias de la Mama/patología , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Estudios Retrospectivos
16.
Cancer ; 123(15): 2821-2828, 2017 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-28323331

RESUMEN

BACKGROUND: Published studies have suggested that most patients with early stage breast cancer are willing, for modest survival benefits, to receive 6 months of adjuvant cyclophosphamide, methotrexate, and 5-fluorouracil, an older regimen that is used infrequently today. We examined preferences regarding the survival benefit needed to justify 6 months of a contemporary chemotherapy regimen. METHODS: The Eastern Cooperative Oncology Group Protocol 5103 was a phase 3 trial that randomized breast cancer patients to receive standard adjuvant doxorubicin, cyclophosphamide, and paclitaxel with either bevacizumab or placebo. Serial surveys to assess quality of life were administered to patients enrolled between January 1, 2010, and June 8, 2010. Survival benefit needed to justify 6 months of chemotherapy by patients was collected at the 18-month assessment. A parallel survey was sent to physicians who had enrolled patients in the study. RESULTS: Of 519 patients who had not withdrawn at a time point earlier than 18 months, 87.8% responded to this survey. A total of 175 physicians participated. We found considerable variation in patient preferences, particularly for modest survival benefits: for 2 months of benefit, 57% would consider 6 months of chemotherapy, whereas 96% of patients would consider 6 months of chemotherapy for 24 months. Race and education were associated with the choices. Physicians who responded were less likely to accept chemotherapy for modest benefit. CONCLUSIONS: Among patients who received contemporary adjuvant chemotherapy in a randomized controlled trial, we found substantial variation in preferences regarding benefits that justified undergoing chemotherapy. Differences between patients' and physicians' choices were also apparent. Eliciting preferences regarding risks and benefits of adjuvant chemotherapy is critical. Cancer 2017;123:2821-28. © 2017 American Cancer Society.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Actitud del Personal de Salud , Actitud Frente a la Salud , Neoplasias de la Mama/tratamiento farmacológico , Quimioterapia Adyuvante , Prioridad del Paciente , Médicos , Calidad de Vida , Adulto , Anciano , Bevacizumab/administración & dosificación , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Ensayos Clínicos Fase III como Asunto , Ciclofosfamida/administración & dosificación , Doxorrubicina/administración & dosificación , Femenino , Humanos , Mastectomía , Mastectomía Segmentaria , Persona de Mediana Edad , Paclitaxel/administración & dosificación , Ensayos Clínicos Controlados Aleatorios como Asunto , Medición de Riesgo , Encuestas y Cuestionarios , Tasa de Supervivencia , Carga Tumoral
17.
Breast Cancer Res Treat ; 165(3): 545-553, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28646344

RESUMEN

PURPOSE: This study aimed to examine how biomarker information would impact patients' preferences and physicians' recommendations for adjuvant breast cancer therapy. METHODS: At the 18-month follow-up, participants in a large, double-blind randomized controlled trial of adjuvant chemotherapy with bevacizumab or placebo (E5103) were surveyed about their preferred treatment (either chemotherapy A alone or chemotherapy A+B) in two hypothetical scenarios: (1) without biomarker information; and (2) after learning that they tested positive for a "B-receptor" which modestly increased both the benefit and toxicity expected with chemotherapy A+B. We performed a cross-sectional analysis of the prospectively collected survey data and used the McNemar's test to examine changes in treatment preferences. A one-time survey of clinical investigators who enrolled patients on the trial evaluated physician recommendations in response to the same biomarker information. RESULTS: 439 patients completed both scenarios on 18-month survey. Most participants preferred A+B in both scenario 1 and 2 (77 and 76% respectively). The increase in benefit and toxicity associated with the positive biomarker information in scenario 2 led 60/439 (14%) of patients to switch their treatment preference. The corresponding physician survey revealed that most physicians chose regimen A+B in scenario 1 (77%), and moreso after the biomarker information was available in scenario 2 (84%). CONCLUSIONS: Information about a positive biomarker indicating increased benefit and toxicity from additional chemotherapy did not change many participants' preferred treatment. The majority preferred the most effective course in both scenarios. Similarly, most investigators discounted increased toxicity and valued increased benefit. Parent Trial Registration: NCT00433511.


Asunto(s)
Biomarcadores , Neoplasias de la Mama/epidemiología , Testimonio de Experto , Prioridad del Paciente , Médicos , Adulto , Anciano , Biomarcadores de Tumor , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/tratamiento farmacológico , Quimioterapia Adyuvante/efectos adversos , Quimioterapia Adyuvante/métodos , Ensayos Clínicos Fase III como Asunto , Femenino , Encuestas de Atención de la Salud , Humanos , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento , Carga Tumoral
18.
Ann Surg Oncol ; 24(11): 3174-3179, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28762113

RESUMEN

Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is a rare disease that has been diagnosed in an extremely small proportion of women with breast implants. The pathogenesis of this disease is currently poorly understood, but it appears to be related to textured implants. Recent high-profile media coverage of this rare clinical entity is likely to cause considerable anxiety for breast cancer patients who have undergone alloplastic breast reconstruction. The purpose of this review is to provide surgical oncologists with an evidence-based overview of the incidence, diagnosis, and management of BIA-ALCL with a particular emphasis on breast reconstruction cases. It is essential that surgical oncologists are familiar with BIA-ALCL, because although it is extremely rare, early recognition and surgical resection will be curative in many cases.


Asunto(s)
Implantación de Mama/efectos adversos , Implantes de Mama/efectos adversos , Neoplasias de la Mama/cirugía , Linfoma Anaplásico de Células Grandes/etiología , Mamoplastia/efectos adversos , Oncólogos , Femenino , Humanos , Pronóstico
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA