Mast cell leukemia: clinical and molecular features and survival outcomes of patients in the ECNM Registry.

Mast cell leukemia (MCL) is a rare subtype of systemic mastocytosis defined by ≥20% mast cells (MC) on a bone marrow aspirate. We evaluated 92 patients with MCL from the European Competence Network on Mastocytosis registry. Thirty-one (34%) patients had a diagnosis of MCL with an associated hematologic neoplasm (MCL-AHN). Chronic MCL (lack of C-findings) comprised 14% of patients, and only 4.5% had "leukemic MCL" (≥10% circulating MCs). KIT D816V was found in 62/85 (73%) evaluable patients; 9 (11%) individuals exhibited alternative KIT mutations, and no KIT variants were detected in 14 (17%) subjects. Ten evaluable patients (17%) had an abnormal karyotype and the poor-risk SRSF2, ASXL1, and RUNX1 (S/A/R) mutations were identified in 16/36 (44%) patients who underwent next-generation sequencing. Midostaurin was the most common therapy administered to 65% of patients and 45% as first-line therapy. The median overall survival (OS) was 1.6 years. In multivariate analysis (S/A/R mutations excluded owing to low event rates), a diagnosis of MCL-AHN (hazard ratio [HR], 4.7; 95% confidence interval [CI], 1.7-13.0; P = .001) and abnormal karyotype (HR, 5.6; 95% CI, 1.4-13.3; P = .02) were associated with inferior OS; KIT D816V positivity (HR, 0.33; 95% CI, 0.11-0.98; P = .04) and midostaurin treatment (HR, 0.32; 95% CI, 0.08-0.72; P = .008) were associated with superior OS. These data provide the most comprehensive snapshot of the clinicopathologic, molecular, and treatment landscape of MCL to date, and should help further inform subtyping and prognostication of MCL.

Breastfeeding Experiences of Baccalaureate Nursing Students: A Qualitative Study.

BACKGROUND: Students returning to school who are breastfeeding face unique challenges. There is limited literature on breastfeeding university students. Several researchers have studied breastfeeding employees in the workplace. Institutions of higher education closely mimic the employment environment. Breastfeeding college students who express their milk while at school share similar challenges to employed mothers. A baccalaureate nursing program is rigorous and little is known about the challenges facing breastfeeding student nurses returning to classes. RESEARCH AIM: To explore the breastfeeding experience of baccalaureate nursing students. METHODS: Our study was a cross-sectional descriptive qualitative design. Purposive sampling was used to enroll participants (N = 12). In depth, semi-structured interviews were conducted. Qualitative thematic analysis was used to analyze the data both manually and using Dedoose QDA software. RESULTS: An overarching theme of pervasive conflict between the role of the breastfeeding mother and the role of the student nurse surfaced. Three interrelated organizing themes also emerged; challenging, vulnerability, and resilience. Time constraints, self-care versus role demands, and structural accommodations contributed to the challenges. Only one participant indicated a knowledge of her breastfeeding rights. All of the participants expressed gratitude for faculty and community support, regardless of conflicts. CONCLUSION: Breastfeeding participants were both vulnerable and resilient. Faculty may improve experiences through providing specific areas of support. A breastfeeding support policy outlining student rights and faculty responsibilities is needed to educate, guide, and enforce protections. Health care providers may enhance breastfeeding students' experiences through anticipatory guidance, education, and continued support.

A phase 2 study of brentuximab vedotin in patients with CD30-positive advanced systemic mastocytosis.

There is an unmet need for effective therapies for advanced systemic mastocytosis (advSM). CD30 is expressed on the surface of neoplastic mast cells (MC) in more than 50% of patients with advSM. Brentuximab vedotin (BV) is a CD30-directed antibody-drug conjugate with preclinical evidence supporting both an antineoplastic effect and an attenuation of immunoglobulin E-associated mediator release. These observations are the basis for this phase 2 trial of BV monotherapy (1.8 mg/kg IV every 3 weeks up to 8 cycles) in patients with CD30-positive advSM. The primary objective was to determine the efficacy of BV according to International Working Group-Myeloproliferative Neoplasms Research and Treatment-European Competence Network on Mastocytosis (IWG-MRT-ECNM) response criteria. Secondary objectives included evaluation of safety, changes in bone marrow (BM) MC burden, serum tryptase level, flow cytometric quantification of MC surface expression of CD30, and self-reported symptom burden. The trial enrolled 10 patients with a diagnosis of CD30+ advSM (aggressive SM, SM with an associated hematologic neoplasm [SM-AHN], or mast cell leukemia [MCL]) with 1 or more signs of SM-related organ damage. According to IWG-MRT-ECNM criteria, none of the patients demonstrated better than stable disease with BV. In addition, there were no significant reductions in BM MC burden, serum tryptase levels, or MC surface expression of CD30. Self-reported symptom scores showed no durable improvement with BV treatment. We conclude that BV is not active as a single agent in CD30+ advSM. This trial was registered at www.clinicaltrials.gov as #NCT01807598.

Storytelling: A Guided Reflection Activity.

BACKGROUND: Reflective practice is a mode of inquiry in the authors' baccalaureate nursing program. To increase students' ability to "think like a nurse," the Reflective Practice Storytelling Guide was developed to facilitate discussion during weekly clinical seminars in the students' final clinical course. METHOD: To evaluate the effectiveness of this guided activity, students were asked to provide feedback to specific questions following each seminar when the reflective presence activity was utilized. RESULTS: Common themes emerged from the storytellers and the members of the group. Themes identified in the responses of the storytellers included role development and formation and the value of team support. Learning themes that emerged from the participants included communication, teamwork, clinical judgment, patient-centered care, use of resources, ethical and legal parameters in practice, and patient safety. CONCLUSION: Utilizing a guided reflection activity resulted in the students experiencing a broader, deeper understanding of reflective professional practice.