Publications by authors named "Zanazzo G"

Background: Invasive mucormycosis is a rare but frequently fatal fungal disease. The acute and rapidly progressive evolution causes unfavourable outcome in 22%-59% of patients and its treatment represents a clinical challenge, especially in immunocompromised patients. Current data in paediatric oncological patients are limited.

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Many studies have reported a more favorable outcome in younger patients with Hodgkin lymphoma (HL). The aims of this study were to find an appropriate age cutoff able to identify low-risk children and to describe the natural history of 135 very young patients affected by classic HL (cHL). The best age cutoff was identified at 7 years of age.

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Objectives: To demonstrate the efficacy of laser photobiomodulation (PBM) compared to that of placebo on severe oral mucositis (OM) in pediatric oncology patients. The primary objective was the reduction of OM grade (World Health Organization [WHO] scale) 7 days after starting PBM. Secondary objectives were reduction of pain, analgesic consumption, and incidence of side effects.

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Objectives: Posterior reversible encephalopathy syndrome (PRES) is one of the most common neurological complications in hematology-oncology pediatric patients. Despite an increasingly recognized occurrence, no clear consensus exists regarding how best to manage the syndrome, because most cases of PRES have reported in single-case reports or small series. Aim of this paper is to identify incidence, clinical features, management, and outcome of PRES in a large series of hematology-oncology pediatric patients.

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Background: Cancer is the second cause of death in children and its diagnosis can be difficult, due to the presence of vague and non-specific symptoms. The primary care pediatrician is often involved in the diagnostic process, but no longer in child care once the treatment started. Care models involving both primary care pediatricians and oncologic referral centre highlighted a higher family satisfaction when they worked together.

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Introduction: SIOPEN INES protocol yielded excellent 5-year survival rates for MYCN-non-amplified metastatic neuroblastoma. Patients deemed ineligible due to lack or delay of MYCN status or late registration were treated, but not included in the study. Our goal was to analyse survival at 10 years among the whole population.

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Background: Many biological and inflammatory markers have been proposed as having a prognostic value at diagnosis of Hodgkin lymphoma (HL), but very few have been validated in paediatric patients. We explored the significance of these markers in a large population of 769 affected children.

Patients And Methods: By using the database of patients enrolled in A.

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Few data are available on the incidence of carbapenemase-producing Enterobacteriaceae (CPE) infection or colonization in children receiving anticancer chemotherapy. We performed a nationwide survey among centers participating in the pediatric hematology-oncology cooperative study group (Associazione Italiana Ematologia Oncologia Pediatrica, AIEOP). During a 2-year observation period, we observed a threefold increase in the colonization rate, and a fourfold increase of bloodstream infection episodes, caused by CPE, with a 90-day mortality of 14%.

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Central venous catheters (CVC), used for the management of children with hemato-oncological disorders, are burdened by a significant incidence of mechanical, infective, or thrombotic complications. These complications favor an increasing risk in prolongation of hospitalization, extra costs of care, and sometimes severe life-threatening events. No guidelines for the management of CVC-related occlusion and CVC-related thrombosis are available for children.

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Sporadic essential thrombocythaemia (ET) is rare in paediatrics, and the diagnostic and clinical approach to paediatric cases cannot be simply copied from experience with adults. Here, we assessed 89 children with a clinical diagnosis of ET and found that 23 patients (25·8%) had a clonal disease. The JAK2 V617F mutation was identified in 14 children, 1 child had the MPL W515L mutation, and 6 had CALR mutations.

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Even though no increased recurrence rate seems to be reported in patients with brain tumors receiving recombinant human growth hormone (rhGH) replacement, in some patients multiple risk factors could put at higher risk for recurrence. In such cases, the decision to start rhGH therapy should be very cautious. A boy with neurofibromatosis type 1 developed an atypical teratoid/rhabdoid tumor (AT/RT) of right cerebellum, treated with surgery, radiotherapy, and chemotherapy.

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Introduction: Treatment of pediatric malignancies is becoming progressively more complex, implying the adoption of multimodal therapies. A reliable, long-lasting venous access represents one of the critical requirements for the success of those treatments. Recent technical innovations-such as minimally invasive procedures for placement, new devices and novel materials-have rapidly spread for clinical use in adult patients, but are still not consistently used in the pediatric population.

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Background: Oral mucositis is a debilitating side effect of chemotherapy. Laser therapy has recently demonstrated efficacy in the management of oral mucositis (OM).

Aim: This prospective study was conducted to evaluate the efficacy of class IV laser therapy in patients affected by OM.

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Article Synopsis
  • A study evaluated whether a 1-day/week regimen of trimethoprim/sulfamethoxazole can effectively prevent Pneumocystis pneumonia (PCP) in children undergoing cancer treatment, in contrast to more frequent dosing schedules recommended.
  • The study involved 20 pediatric hematology-oncology centers in Italy, surveying 2466 patients with various cancer diagnoses, where 27.9% were on the 1-day regimen, and only 0.08% experienced PCP cases, both from the 2-day/week group.
  • The findings suggest that a simplified 1-day prophylaxis may be adequate for PCP prevention in these patients, which could influence similar approaches for other immunocompromised individuals beyond just cancer care
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Lipoblastoma is a rare benign soft-tissue neoplasm that occurs most commonly in children less than 3 year of age. We present a case of left suprascapular lipoblastoma in an 11-month-old boy which grew into the thorax and was approached by thoracoscopy. In this case thoracoscopic approach was the best option to reach the intrathoracic component of the mass in the apex of the left side of the chest.

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In the last 30 years, the use of long-term central venous catheters (CVC) is increased especially for children with hemato-oncological disorders. However, the use of CVC is associated to complications, as mechanical accidents, thrombosis, and infections that can determine a prolongation of hospital stay, an increase of costs, and sometimes life-threatening conditions that require urgent systemic treatment or CVC removal. CVC removal may be troublesome especially in neonates, infants, or any other "highly needed CVC patients"; in these selected cases, the prevention and treatment of CVC-related complications play a pivotal role and specific surveillance programs are crucial.

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Background: Cure rate for subjects with refractory or relapsing metastatic neuroblastoma is <5%. In the search for a novel therapy, continuous daily oral administration of imatinib mesylate was evaluated.

Patients And Methods: Twenty-four subjects were enrolled in a two-stage study.

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Given that the rationale for empirical antifungal therapy in neutropenic children is limited and based on adult patient data, we performed a prospective, randomized, controlled trial that evaluated 110 neutropenic children with persistent fever. Those at high risk for invasive fungal infections (IFI) received caspofungin (Arm C) or liposomal amphotericinB (Arm B); those with a lower risk were randomized to receive Arm B, C, or no antifungal treatment (Arm A). Complete response to empirical antifungal therapy was achieved in 90/104 patients (86·5%): 48/56 at high risk (85·7%) [88·0% in Arm B; 83·9% in Arm C (P = 0·72)], and 42/48 at low risk (87·5%) [87·5% in control Arm A, 80·0% Arm B, 94·1% Arm C; (P = 0·41)].

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Background: At diagnosis, children with neuroblastoma (NB) present with either localized or metastatic disease. Since the mechanisms responsible for BM invasion are not well known, we investigated the transcriptome of resident BM cells from NB patients as compared to healthy children.

Procedure: Ninety-two and 88 children with localized and metastatic NB, respectively, and 15 healthy children were included in the study.

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A nationwide questionnaire-based survey was designed to evaluate the management and prophylaxis of febrile neutropenia in pediatric patients admitted to hematology-oncology and hematopoietic stem cell transplant units. Of the 34 participating centers, 40 and 63%, respectively, continue to prescribe antibacterial and antimycotic prophylaxis in low-risk subjects and 78 and 94% in transplant patients. Approximately half of the centers prescribe a combination antibiotic regimen as first-line therapy in low-risk patients and up to 81% in high-risk patients.

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The most intensive chemotherapy regimens were used in the past for leukemia patients who were the main focus of trials on infections; today there are increasing numbers of children with solid cancer and considerable risk of infection who do receive intensive standard-dose chemotherapy. Despite a continuous will to protect the immune-compromised child from infections, evidence-based indications for intervention by non-pharmacological tools is still lacking in the pediatric hematology-oncology literature. Guidelines on standard precautions as well as precautions to avoid transmission of specific infectious agents are available.

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Controversial issues on the management of empiric therapy and diagnosis of febrile neutropenia (FN) were faced by a Consensus Group of the Italian Association of Pediatric Hematology-Oncology (AIEOP). In this paper we report the suggestions of the consensus process regarding the role of aminoglycosides, glycopeptides and oral antibiotics in empiric therapy of FN, the rules for changing or discontinuing the therapy as well as the timing of the blood cultures.

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Background: Data on the epidemiology of bacteremias and invasive fungal diseases (IFD) in children with acute myeloid leukemia (AML) are scarce.

Design And Methods: In a multi-center, retrospective study, we analyzed proportion, rate per 1,000 person-days at risk, and cumulative risk of bacteremias and IFD in children with AML.

Results: Between January 1998 and December 2005, 240 children were treated for AML at 8 Italian Centers, for a total of 521 treatment courses and 63,232 person-days at risk.

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Background: To define the mortality and the current impact of the H1N1 pandemic in pediatric hematology-oncology centers, we performed a specific survey.

Procedure: Pharyngeal swabs from patients with fevers of unknown origin, flu-like symptoms or bronchopneumonia were screened for H1N1 using PCR.

Results: Sixty-two patients with documented H1N1 infection were reported: 16 had recently stopped therapy, 2 were at the diagnosis stage, and 44 were receiving therapy.

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