Invasive fungal infections in the Paediatric Intensive Care Unit: A Hong Kong Study

Author:

Hon Kam Lun1,Li Mario Wai Tung1,Leung Karen Ka Yan1,Hui Wun Fung1ORCID,Lung David2ORCID,Ha Shau Yin1ORCID

Affiliation:

1. Department of Paediatrics and Adolescent Medicine, The Hong Kong Children’s Hospital, Hong Kong, China

2. Department of Pathology, The Hong Kong Children’s Hospital, Hong Kong, China

Abstract

Introduction: Invasive fungal infections (IFI) cause significant mortality and morbidity in the Paediatric Intensive Care Unit (PICU). Early recognition and prompt treatment of invasive fungal infections are important. This article reviewed the mortality and morbidity of IFIs in the PICU of Hong Kong Children’s Hospital. Methods: Retrospective review of all PICU admissions from April 2019 to May 2021. The following data were retrieved: age, gender, diagnosis, comorbidity, clinical manifestation, type of fungus, duration of stay at PICU, absolute neutrophil count, use of immunosuppressive therapy, presence of central venous catheter and use of total parental nutrition. The primary outcomes were the incidence and mortality of IFIs among PICU patients. The secondary outcomes were risk factors for developing IFI in PICU and clinical course of IFIs. Numerical variables were compared between groups by Mann-Whitney U test and categorical variables by Fisher’s exact test. Results: There were 692 PICU admissions over the study period from April 2019 to May 2021. There were 24 death cases during this period of time. The crude mortality was 3%. Fourteen patients (2%) fulfilling the criteria for IFIs were identified using hospital electronic record system and according to PICU documentation. Eight of these 14 patients (57%) had hematological malignancy, 2 (17%) had solid tumours and 4 had non-oncological conditions. There were 4 (29%) patients who had received hematopoietic stem cells transplant because of oncological problems. Six patients (43%) were neutropenic with absolute neutrophil count less than 1x 109 at diagnosis of IFI. Six (43%) had received immunosuppressive therapy including steroid, cyclosporin A, Mycophenolate mofetil (MMF), Sirolimus or tacrolimus. 12 (86%) had had central venous catheter. Eight (57%) were on parenteral nutrition. Rhizopus or Aspergillus infection (5/14) were associated with nonsurvival (p = 0.031). Conclusion: All patients with IFIs managed in the PICU have haemato-oncology diseases or are recipients of stem cell transplantation. IFIs with Rhizopus or Aspergillus as a group are associated with high mortality in the PICU. Awareness of this pathology with prompt diagnosis and treatment may improve the outcome of these infections and reduce the mortality.

Publisher

Bentham Science Publishers Ltd.

Subject

Pediatrics, Perinatology and Child Health

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