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Early warning and prevention of pneumonia in acute leukemia by patient education, spirometry, and positive expiratory pressure: a randomized controlled trial

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Long lasting neutropenia associated with acute myeloid leukemia (AML) and its treatment gives rise to a high risk of pneumonia. The use of broad-spectrum antibiotic prophylaxis during outpatient management has not completely protected patients against admission due to infections and neutropenic fever, emphasizing the need to approach infection protection with complementary efforts. In a randomized controlled design, we examined the applicability of patient-performed daily spirometry (forced expiratory volume in one second (FEV1)) as an early warning tool and explored the effectiveness of positive expiratory pressure (PEP) in preventing pneumonia among 80 AML patients. Twenty-five incidences of pneumonia were detected among 23 patients (6 interventions, 17 controls), giving a prevalence of 28.75% during 5420 days of observation. We found a significant difference in incidence between intervention versus control group (2.17 per 1000 days vs. 6.52 per 1000 days, p=0.021, respectively). A cross point at 80-76% of the personal FEV1 reference value showed high sensitivity and specificity on pneumonia development. Our data demonstrate the feasibility of educating AML patients in their continuous daily measurement of FEV1 and use of PEP. Daily measures of FEV1 may be an important early warning tool for assessment of pulmonary deterioration during critical phases of neutropenia. We suggest that strategic patient education in the use of spirometry and PEP should be part of standard of care for AML patients undergoing induction chemotherapy.

TRIAL REGISTRATION: ISRCTN36674014 Disclosure: The authors have no competing interests to declare This article is protected by copyright. All rights reserved.

TidsskriftAmerican Journal of Hematology
Udgave nummer3
Sider (fra-til)271-6
Antal sider6
StatusUdgivet - 2016

ID: 45971110