Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 121
Filtrar
1.
J Am Coll Surg ; 2024 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-38577986

RESUMEN

SUMMARY: Nationwide abortion restrictions resulting from the Dobbs v. Jackson Women's Health Organization (2022) decision have generated confusion and uncertainty among healthcare professionals, with concerns for liability impacting clinical decision-making and outcomes. The impact on pediatric surgery can be seen in prenatal counseling for fetal anomaly cases, counseling for fetal intervention, and recommendations for pregnant children and adolescents who seek termination. It is essential that all physicians and healthcare team members understand the legal implications on their clinical practices, engage with resources and organizations which can help navigate these circumstances, and consider advocating for patients and themselves. Pediatric surgeons must consider the impact of these changing laws on their ability to provide comprehensive and ethical care and counseling to all patients.

2.
J Pediatr Surg ; 2024 Mar 14.
Artículo en Inglés | MEDLINE | ID: mdl-38561305

RESUMEN

The Section on Surgery of the American Academy of Pediatrics celebrates its 75th anniversary in 2023. To continue the tradition begun 25 years ago with analyses of the first two 25 years timespans of the organization, this examination focuses on the most recent quarter century. To frame this review, we begin with the seminal beginnings with the work of the section's founder, Herbert E Coe and reflect upon the twenty charter members of the organization. Then we explore the important accomplishments and challenges of the organization to the current time. Finally, we conclude with a glimpse of what the future holds for the first home of pediatric surgeons. TYPE OF STUDY: Review. LEVEL OF EVIDENCE: V.

3.
Cancer ; 2024 Feb 23.
Artículo en Inglés | MEDLINE | ID: mdl-38396300

RESUMEN

BACKGROUND: On the fifth National Wilms Tumor Study, treatment for clear cell sarcoma of the kidney (CCSK) included combined vincristine, doxorubicin, cyclophosphamide, and etoposide (regimen I) plus radiation therapy (RT), yielding 5-year event-free survival (EFS) rates of 100%, 88%, 73%, and 29% for patients who had with stage I, II, III, and IV disease, respectively. In the Children's Oncology Group study AREN0321 of risk-adapted therapy, RT was omitted for stage I disease if lymph nodes were sampled, and carboplatin was added for stage IV disease (regimen UH-1). Patients who had stage II/III disease received regimen I with RT. METHODS: Four-year EFS was analyzed for patients enrolled on AREN0321 and on those enrolled on AREN03B2 who received AREN0321 stage-appropriate chemotherapy. RESULTS: Eighty-two patients with CCSK enrolled on AREN0321, 50 enrolled on AREN03B2 only. The 4-year EFS rate was 82.7% (95% confidence interval [CI], 74.8%-91.4%) for AREN0321 and 89.6% (95% CI, 81.3%-98.7%) for AREN03B2 only (p = .28). When combining studies, the 4-year EFS rates for patients who had stage I (n = 10), II (n = 47), III (n = 65), and IV (n = 10) disease were 90% (95% CI, 73.2%-100.0%), 93.4% (95% CI, 86.4%-100.0%), 82.8% (95% CI, 74.1%-92.6%), and 58.3% (95% CI, 34%-100.0%), respectively. There were no local recurrences among seven patients with stage I disease who were treated without RT. One stage I recurrence occurred in the brain, which was the most common site of relapse overall. Among patients with local stage III tumors, neither initial procedure type, margin status, nor lymph node involvement were prognostic. CONCLUSIONS: Patients with stage I CCSK had excellent outcomes without local recurrences when treated without RT. Patients with stage IV disease appeared to benefit from a carboplatin-containing regimen, although their outcomes remained unsatisfactory. Further research is needed to improve outcomes for patients with advanced-stage disease (ClinicalTrials.gov identifiers NCT00335556 and NCT00898365).

5.
J Surg Res ; 296: 636-642, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38359678

RESUMEN

INTRODUCTION: Pediatric surgical trainees come from diverse races and ethnicities. However, Asian-Americans (AAs) including West, South, and East Asians may represent a unique group of individuals. We sought to identify any unique challenges and experiences. METHODS: Pediatric surgical trainees were identified from, "The Genealogy of North American Pediatric Surgery: From Ladd to Now" and "Celebrating 50 Years: Canadian Association of Paediatric Surgeons/Association Canadienne de Chirurgie Pediatrique". A database was compiled, and AAs identified who completed their pediatric surgical training on or before 1980. Personal interviews and online sources provided further information. RESULTS: Of 635 pediatric surgical trainees in North America (NA) there were 49 AA trainees (7.7%). There was insufficient information for seven, thus leaving 42 (41 male, one female) for review. The region of Asia of origin included 16 East, 16 West, and 10 South. Thirty-seven (88.0%) had moved to NA for training. The most frequent training programs included seven from Toronto and four each at Buffalo, Detroit, Pittsburgh, and Chicago (Children's Memorial). Thirty-five (83%) trainees spent most of their careers in NA while 7 (17%) practiced in their home country. CONCLUSIONS: The first AA pediatric surgical trainees voiced few examples of discrimination but indicated needs to adjust to the NA culture and often confusion over non-Western names. Mentorship was valued and gratitude expressed over the opportunity offered to train in NA. While some had intended to return to their home countries, plans changed due to meeting spouses or political turmoil. Many of those reviewed sought each other out at national meetings.


Asunto(s)
Especialidades Quirúrgicas , Cirujanos , Niño , Humanos , Masculino , Femenino , Asiático , Canadá , Cirujanos/educación , Especialidades Quirúrgicas/educación , América del Norte
6.
J Am Coll Surg ; 238(4): 733-749, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38251681

RESUMEN

BACKGROUND: To review race and ethnic group enrollment and outcomes for Wilms tumor (WT) across all 4 risk-assigned therapeutic trials from the current era Children's Oncology Group Renal Tumor Biology and Risk Stratification Protocol, AREN03B2. STUDY DESIGN: For patients with WT enrolled in AREN03B2 (2006 to 2019), disease and biologic features, therapeutic study-specific enrollment, and event-free (EFS) and overall (OS) 4-year survival were compared between institutionally reported race and ethnic groups. RESULTS: Among 5,146 patients with WT, no statistically significant differences were detected between race and ethnic groups regarding subsequent risk-assigned therapeutic study enrollment, disease stage, histology, biologic factors, or overall EFS or OS, except the following variables: Black children were older and had larger tumors at enrollment, whereas Hispanic children had lower rates of diffuse anaplasia WT and loss of heterozygosity at 1p. The only significant difference in EFS or OS between race and ethnic groups was observed among the few children treated for diffuse anaplasia WT with regimen UH-1 and -2 on high-risk protocol, AREN0321. On this therapeutic arm only, Black children showed worse EFS (hazard ratio = 3.18) and OS (hazard ratio = 3.42). However, this finding was not replicated for patients treated with regimen UH-1 and -2 under AREN03B2 but not on AREN0321. CONCLUSIONS: Race and ethnic group enrollment appeared constant across AREN03B2 risk-assigned therapeutic trials. EFS and OS on these therapeutic trials when analyzed together were comparable regarding race and ethnicity. Black children may have experienced worse stage-specific survival when treated with regimen UH-1 and -2 on AREN0321, but this survival gap was not confirmed when analyzing additional high-risk AREN03B2 patients.


Asunto(s)
Neoplasias Renales , Tumor de Wilms , Niño , Humanos , Anaplasia , Etnicidad , Hispánicos o Latinos , Neoplasias Renales/terapia , Neoplasias Renales/patología , Tumor de Wilms/genética , Tumor de Wilms/terapia , Negro o Afroamericano , Grupos Raciales , Tasa de Supervivencia
7.
Pediatr Blood Cancer ; 71(3): e30766, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37950538

RESUMEN

Surgery plays a crucial role in the treatment of children with solid malignancies. A well-conducted operation is often essential for cure. Collaboration with the primary care team is important for determining if and when surgery should be performed, and if performed, an operation must be done in accordance with well-established standards. The long-term consequences of surgery also need to be considered. Indications and objectives for a procedure vary. Providing education and developing and analyzing new research protocols that include aims relevant to surgery are key objectives of the Surgery Discipline of the Children's Oncology Group. The critical evaluation of emerging technologies to ensure safe, effective procedures is another key objective. Through research, education, and advancing technologies, the role of the pediatric surgeon in the multidisciplinary care of children with solid malignancies will continue to evolve.


Asunto(s)
Neoplasias , Niño , Humanos , Neoplasias/cirugía , Oncología Médica
8.
J Pediatr Surg ; 59(6): 1135-1141, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38160188

RESUMEN

Firearm injuries have become the leading cause of death among American children. Here we review the scope of the problem, and the pivotal role pediatric surgeons have in preventing pediatric firearm injury. Specific methods for screening and counseling are reviewed, as well as how to overcome barriers. Community and hospital resources as well as organizational efforts are discussed. Finally, a path for surgeon advocacy is outlined as is a call to action for the pediatric surgeon, as we are uniquely poised to identify pediatric patients and deliver timely interventions to reduce the impact of firearm violence. LEVEL OF EVIDENCE: Level IV.


Asunto(s)
Armas de Fuego , Pediatría , Rol del Médico , Sociedades Médicas , Heridas por Arma de Fuego , Humanos , Heridas por Arma de Fuego/prevención & control , Niño , Armas de Fuego/legislación & jurisprudencia , Estados Unidos , Defensa del Niño , Defensa del Paciente
10.
J Wound Care ; 32(10): 665-675, 2023 Oct 02.
Artículo en Inglés | MEDLINE | ID: mdl-37830828

RESUMEN

OBJECTIVE: Medical adhesives are used to secure wound care dressings and other critical devices to the skin. While high peel-strength adhesives provide more secure skin attachment, they are difficult to remove from the skin and are correlated with medical adhesive-related skin injuries (MARSI), including skin tears, and an increased risk of infection. Lower-adhesion medical tapes may be applied to avoid MARSI, leading to dressing or device dislodgement and further medical complications. METHOD: This paper reports on the clinical testing of a new, high-adhesion medical tape, ThermoTape (University of Washington, US), designed for low skin trauma upon release. ThermoTape was benchmarked with Tegaderm (3M, US) and Kind Removal Tape (KRT) (3M, US). All three tapes were applied to both the left and right forearm of healthy volunteers and were removed 24 hours later-the right arm without applying heat and the left arm by applying a heat pack for 30 seconds before removal. Tape wear, self-reported pain (0-10 scale) and skin redness 15 minutes after removal were recorded. RESULTS: This was a 53-subject comparative, single-blind clinical trial. There were clinically and statistically significant results supporting reduced pain during removal of ThermoTape with warming, with an average 58% decrease in pain, paired with a statistically significant 45% reduction in skin redness (p<0.01 for both values). In contrast, there were statistically insignificant differences in pain and redness for removal of Tegaderm and KRT with warming. ThermoTape after warming, in comparison with Tegaderm without warming, produced a reduced pain score of >1 on the 0-10 Wong-Baker/Face pain scale, which was statistically significant (p<0.01). CONCLUSION: These results provide compelling evidence that warming ThermoTape prior to removal can reduce pain and injury when compared with standard medical tapes. This could allow for stronger attachment of wound care dressings and critical medical devices while reducing cases of MARSI.


Asunto(s)
Adhesivos , Piel , Humanos , Temperatura , Método Simple Ciego , Adhesivos/efectos adversos , Piel/lesiones , Dolor
11.
J Pediatr Surg ; 58(12): 2278-2285, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37468347

RESUMEN

BACKGROUND: Operating rooms generate significant greenhouse gas emissions. Our objective was to assess current institutional climate-smart actions and pediatric surgeon perceptions regarding environmental stewardship efforts in the operating room. METHODS: A survey was distributed to members of the American Pediatric Surgical Association in June 2022. The survey was piloted among ten general surgery residents and two professional society cohorts of pediatric surgeons. Comparisons were made by demographic and practice characteristics. RESULTS: Survey response rate was 15.9% (n = 160/1009) and included surgeons predominantly from urban (n = 93/122, 76.2%) and academic (n = 84/122, 68.9%) institutions. Only 9.8% (n = 12/122) of pediatric surgeons were currently involved in operating room environmental initiatives. The most common climate-smart actions were reusable materials and equipment (n = 120/159, 75.5%) and reprocessing of medical devices (n = 111/160, 69.4%). Most surgeons either strongly agreed (n = 48/121, 39.7%) or agreed (n = 62/121, 51.2%) that incorporation of environmental stewardship practices at work was important. Surgeons identified reusable materials/equipment (extremely important: n = 61/129, 47.3%, important: n = 38/129, 29.5%) and recycling (extremely important: n = 68/129, 52.7%, important: n = 29/129, 22.5%) as the most important climate-smart actions. Commonly perceived barriers were financial (extremely likely: n = 47/123, 38.2%, likely: n = 50/123, 40.7%) and staff resistance to change (extremely likely: n = 29/123, 23.6%, likely: n = 60/123, 48.8%). Regional differences included low adoption of energy efficiency strategies among respondents from southern states (n = 0/26, p = 0.01) despite high perceived importance relative to other regions (median: 5, IQR: 4-5 vs median: 4, IQR 4-5, p = 0.04). CONCLUSIONS: While most pediatric surgeons agreed that environmental stewardship was important, less than 10% are currently involved in initiatives at their institutions. Opportunities exist for surgical leadership surrounding implementation of climate-smart actions. LEVEL OF EVIDENCE: Level III.


Asunto(s)
Quirófanos , Cirujanos , Niño , Humanos , Estados Unidos , Encuestas y Cuestionarios
12.
Pediatr Blood Cancer ; : e30494, 2023 Jun 19.
Artículo en Inglés | MEDLINE | ID: mdl-37337248

RESUMEN

BACKGROUND AND OBJECTIVES: New childhood cancer diagnoses require timely, complex care coordination and cause considerable logistic burden for families. We used renal tumors as a model to examine healthcare utilization and cost following new solid tumor diagnosis. METHODS: Children (ages 0-21) with International Classification of Disease (ICD) codes for renal malignancy and subsequent nephrectomy were identified from North Carolina Medicaid claims data (2014-2020). We stratified patients by duration of follow-up, then quantified healthcare utilization and billing totals. RESULTS: Eighty-one children met study criteria. Median age at diagnosis was 3 years (interquartile range [IQR]: 1-5). Median family monthly earned income was $0. One month following diagnosis, children cumulatively spent a median of 16 days receiving medical care (IQR: 10-20), 28 days at 3 months (IQR: 21-43), and 50.5 days at 1 year (IQR: 35-94.5). Children cumulatively spent a median 12 days as inpatients during the first 3 months (IQR: 7-17) and 13.5 days at 1 year (IQR: 8.5-37). Children cumulatively completed a median 12 outpatient encounters at 3 months (IQR: 7-17) and 26 at 1 year (IQR: 12-36). At 1 year, median Medicaid claim reimbursements for children with renal malignancy was $50,041 (IQR: $36,670-$80,734). CONCLUSION: In examining healthcare utilization in children with renal tumor diagnoses, the substantial number of days spent in medical facilities greatly impacts the burden of care on families, especially for those with limited financial resources. Awareness of this logistic strain on families and careful planning to consolidate patient visits may improve the navigability of pediatric cancer regimens for families, particularly those with limited resources.

13.
J Pediatr Surg ; 58(6): 1053-1058, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36925400

RESUMEN

Unique challenges face pediatric surgeons at community-based nonteaching hospitals. Communication and collaboration among and between healthcare providers, hospital administrators, and quaternary referral programs is crucial for the success of these smaller hospitals as they care for children.


Asunto(s)
Especialidades Quirúrgicas , Cirujanos , Niño , Humanos , Hospitales , Comunicación
14.
J Pediatr Surg ; 58(6): 1048-1052, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36925401

RESUMEN

Pediatric surgeons have been pursuing high quality, affordable care or value-based care for over 50 years. One approach to streamlining the clinical care for a complex problem was the development of a center of excellence (COE). The concept of COE focuses on a shared vision of providing high quality care through a multidisciplinary approach. The goal is to improve diagnostic accuracy as well as therapeutic outcomes using focused expertise within a group. COEs are often resource intensive before becoming fiscally viable and therefore require initial support from hospital leadership. This review discusses the key steps to consider before building a COE, strategies to help build one, and how to keep one successful as defined by quality, accessibility, equity, training, and maintaining teams within the group.


Asunto(s)
Hospitales , Calidad de la Atención de Salud , Niño , Humanos
15.
J Pediatr Surg ; 58(6): 1033-1038, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36948933

RESUMEN

Dr. Herbert E Coe was the driving force for the formation of the American Academy of Pediatrics Section on Surgery in 1948. At that time, he set out four goals for the organization. Through analyzing the outcomes of those goals, the Executive Committee has set out four strategic goals; i) define its identity, ii) improve communication, iii) strengthen its collaboration, and iv) enhance the value of membership.

16.
J Pediatr Surg ; 58(6): 1059-1073, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36948932

RESUMEN

The care of critically ill neonates and pediatric patients can be particularly emotionally and ethically challenging. Emerging evidence suggests that we can improve the patient, family, and care team experience in the critical care setting through a better understanding and application of ethical frameworks and communication strategies. We conducted a multidisciplinary panel session at the American Academy of Pediatrics National Conference and Exhibition in the fall of 2022 wherein we explored a myriad of ethical and communication considerations in this unique patient population, with congenital diaphragmatic hernia (CDH) as the congenital anomaly/disease framework. In this review, we will cover state of the art topics in ethics, communication, and palliative care including basic terminology, communication strategies such as trauma-informed communication, establishing/evolving goals of care, futility, medically inappropriate treatment, ethical frameworks, parental discretion, establishing milestones, internal/external intentions, and re-direction of care. These topics will be helpful to many specialties who are involved in the care of critically ill neonates and children including maternal fetal medicine, pediatrics, neonatology, pediatric critical care, palliative care, and pediatric surgery, along with the pediatric surgical subspecialties. We use a theoretical CDH case as an example and include the live audience responses from the interactive session. This primer provides overarching educational principles, as well as practical communication concepts, that can cultivate compassionate multidisciplinary teams, equipped to optimize family-centered, evidence-based compassionate communication and care.


Asunto(s)
Hernias Diafragmáticas Congénitas , Neonatología , Recién Nacido , Niño , Humanos , Comunicación , Enfermedad Crítica/terapia , Empatía , Cuidados Paliativos , Hernias Diafragmáticas Congénitas/cirugía
17.
J Surg Res ; 279: 84-88, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35728277

RESUMEN

INTRODUCTION: The purpose of this study was to analyze a nationwide database of malpractice lawsuits involving pediatric surgical patients to identify contributing factors in liability claims. METHODS: Using the CRICO (Controlled Risk Insurance Company Strategies' Comparative Benchmarking System) database, malpractice claims involving patients ≤18 y old were reviewed from 2008 to 2017. Data were analyzed using descriptive statistics and logistic regression. RESULTS: Of the 844 claims, 76% of the patients were older than age 5. While the average total indemnity paid was $544,325, cases with claimants <1-year-old accounted for 24% of the total indemnity paid, with an average of $1,135,240 per claimant. The most frequently named responsible services were Orthopedics (34%), General Surgery (15%), and Otolaryngology (11%). Fracture or dislocation, appendectomy, skin/breast surgery, arthroscopy, and tonsillectomy/adenoidectomy were among the frequently involved procedures for the cohort of cases. The most common contributing factors for the top procedures involve issues surrounding patient assessment, technical performance, and communication. Cases with a contributing factor of failure to appreciate and reconcile relevant sign/symptom/test results were associated with a higher likelihood of payment (OR 6.6, P < 0.05). Issues surrounding the selection of therapy also led to an increased likelihood of an indemnity payment (OR 2.8, P < 0.05). CONCLUSIONS: Malpractice claims related to pediatric surgical procedures involve a wide range of specialties. Patient evaluations, technical performance, and communication are modifiable factors to improve surgical care in children. The contributing factors assigned to each procedure may represent an opportunity for focused improvement to improve patient outcomes.


Asunto(s)
Mala Praxis , Medicina , Ortopedia , Niño , Preescolar , Bases de Datos Factuales , Humanos , Lactante , Modelos Logísticos , Estudios Retrospectivos
18.
Cancer ; 128(13): 2493-2503, 2022 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-35383900

RESUMEN

BACKGROUND: An objective of the Children's Oncology Group AREN0534 Study was to improve the survival of patients with bilateral Wilms tumors (BWT) by using preoperative chemotherapy of limited duration and tailoring postoperative therapy based on histopathologic response. The authors report outcomes based on postoperative histopathologic responses. METHODS: Patients with BWT received treatment with vincristine, dactinomycin, and doxorubicin for 6 or 12 weeks followed by surgery. Postoperative therapy was prescribed based on the highest risk tumor according to the International Society of Pediatric Oncology classification and the Children's Oncology Group staging system. RESULTS: Analyses were performed on data from 180 evaluable children. The 4-year event-free survival (EFS) and overall survival (OS) rates were 81% (95% CI, 74%-87%) and 95% (95% CI, 91%-99%), respectively. Seven patients who had completely necrotic tumors had a 4-year EFS rate of 100%. Of 118 patients who had tumors with intermediate-risk histopathology, the 4-year EFS and OS rates were 82% (95% CI, 74%-90%) and 97% (95% CI, 94%-100%), respectively. Fourteen patients who had blastemal-type tumors had 4-year EFS and OS rates of 79% (95% CI, 56%-100%) and 93% (95% CI, 79%-100%), respectively. Eighteen patients who had diffuse anaplasia had 4-year EFS and OS rates of 61% (95% CI, 35%-88%) and 72% (95% CI, 47%-97%), respectively; and the 4-year EFS and OS rates of 7 patients who had focal anaplasia were 71% (95% CI, 38%-100%) and 100%, respectively. There was no difference in the outcomes of patients who had different histopathologic subtypes within the intermediate-risk group (P = .54). CONCLUSIONS: A risk-adapted treatment approach for BWT results in excellent outcomes. This approach was not successful in improving the outcome of patients who had diffuse anaplasia.


Asunto(s)
Neoplasias Renales , Tumor de Wilms , Anaplasia/patología , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Niño , Humanos , Lactante , Neoplasias Renales/tratamiento farmacológico , Neoplasias Renales/patología , Neoplasias Renales/cirugía , Estadificación de Neoplasias , Nefrectomía , Estudios Prospectivos , Vincristina , Tumor de Wilms/tratamiento farmacológico , Tumor de Wilms/patología , Tumor de Wilms/cirugía
19.
J Pediatr Surg ; 57(8): 1701-1703, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35487794

RESUMEN

Hirschsprung disease is a common disease treated by surgeons using different approaches. One approach is eponymously ascribed to Franco Soave and Scott Boley involving a pull-through of ganglionated colon through a distal portion of aganglionated rectum. However, more recent evidence has shown that this same technique was described twelve years before by Asa Yancey, a black surgeon. A review of the evidence follows with a focus on why Yancey may not have rightly received the credit that was because of him.


Asunto(s)
Enfermedad de Hirschsprung , Enfermedad de Hirschsprung/complicaciones , Enfermedad de Hirschsprung/cirugía , Humanos , Lactante , Masculino , Complicaciones Posoperatorias/etiología , Recto/cirugía
20.
Ann Surg Oncol ; 29(5): 3252-3261, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35072864

RESUMEN

INTRODUCTION: Diffuse hyperplastic perilobar nephroblastomatosis (DHPLN) represents a unique category of nephroblastomatosis. Treatment has ranged from observation to multiple regimens of chemotherapy. Wilms tumors (WTs) develop in 100% of untreated patients and between 32 and 52% of treated patients. Renal preservation rates have not been previously reported. An aim of the Children's Oncology Group (COG) study AREN0534 was to prospectively evaluate the efficacy of chemotherapy in preserving renal units and preventing WT development in children with DHPLN. METHODS: Patients were enrolled through the COG protocol AREN03B2 with central radiological review. DHPLN was defined as the cortical surface of the kidney being composed of hyperplastic rests, with the entire nephrogenic zone involved, and with a thick rind capping all of one or both kidneys. Treatment was with vincristine and dactinomycin (regimen EE4A), with cross-sectional imaging at weeks 6 and 12. If the patient's disease was stable or decreasing, treatment was continued for 19 weeks. Renal preservation, WT development rates at 1 year, and overall survival (OS) are reported. RESULTS: Nine patients were enrolled (five females and four males), with a median age at enrollment of 10.22 months (range 2.92-29.11). One patient who was enrolled was deemed unevaluable because they did not meet the radiological criteria for DHPLN, resulting in eight evaluable patients. These eight patients had DHPLN confirmed via radiological criteria (all bilateral). Initial chemotherapy was EE4A for all eight patients, with seven of eight patients starting chemotherapy without tissue diagnosis.One patient who had an upfront partial nephrectomy was found to have DHPLN in the specimen and was subsequently treated with EE4A. All patients remained alive, with a median follow-up of 6.6 years (range 4.5-9.1). No patients were anephric; 14 of 16 kidneys were functioning (87.5%). Six of eight patients (75%) did not have WT on therapy, but two of these patients relapsed within 6 months of stopping therapy; both had favorable histology WT. One patient who was diagnosed with WT on therapy relapsed at 12 months (one of eight [12.5%]) and developed anaplastic histology. CONCLUSIONS: Chemotherapy for patients with DHPLN was effective in preserving kidney function. Five-year OS is excellent, however the ideal type and duration of chemotherapy to prevent WT development remains elusive.


Asunto(s)
Neoplasias Renales , Lesiones Precancerosas , Tumor de Wilms , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Preescolar , Dactinomicina/uso terapéutico , Femenino , Humanos , Lactante , Riñón/patología , Neoplasias Renales/tratamiento farmacológico , Neoplasias Renales/patología , Neoplasias Renales/cirugía , Masculino , Nefrectomía , Lesiones Precancerosas/patología , Tumor de Wilms/tratamiento farmacológico , Tumor de Wilms/patología , Tumor de Wilms/cirugía
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...