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Tourniaire G, Milési C, Baleine J, Crozier J, Lapeyre C, Combes C, Nagot N, Cambonie G. [Anemia, a new severity factor in young infants with acute viral bronchiolitis?]. Arch Pediatr 2018. [PMID: 29523379 DOI: 10.1016/j.arcped.2018.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
INTRODUCTION The role of anemia is raised as a risk of low respiratory infection of the child, but there are no data on anemia as a severity factor in acute viral bronchiolitis (AVB) in infants. METHODS All infants less than 16 weeks old admitted to Montpellier University Hospital from 2015/10/01 to 2016/04/01 for AVB were included in a retrospective observational study. The primary objective was to determine whether the hemoglobin (Hb) concentration on admission was an independent factor of clinical severity, judged by the modified Wood's clinical asthma score (m-WCAS). The secondary objective was to assess the impact of Hb level on the characteristics of hospitalization, including the type and duration of respiratory support. RESULTS The m-WCAS was used at least once during hospitalization in 180 out of 220 patients (82%), making it possible to distinguish patients with mild AVB (maximum m-WCAS<2, n=81) from patients with severe AVB (maximum m-WCAS>2, n=99). A logistic regression model indicated that the Hb concentration, for every 1g/dL decrement, was an independent factor of AVB severity (OR 1.16 [1.03-1.29], P=0.026). A level under 10g/dL on admission was associated with a higher use of continuous positive airway pressure (P<0.001), as well as a longer duration of respiratory support (P=0.01). CONCLUSION This study suggested that anemia may influence the clinical expression of AVB in young infants.
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Affiliation(s)
- G Tourniaire
- Département de pédiatrie néonatale et réanimations, centre hospitalier universitaire de Montpellier, hôpital Arnaud-de-Villeneuve, pôle hospitalo-universitaire femme-mère-enfant, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France
| | - C Milési
- Département de pédiatrie néonatale et réanimations, centre hospitalier universitaire de Montpellier, hôpital Arnaud-de-Villeneuve, pôle hospitalo-universitaire femme-mère-enfant, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France
| | - J Baleine
- Département de pédiatrie néonatale et réanimations, centre hospitalier universitaire de Montpellier, hôpital Arnaud-de-Villeneuve, pôle hospitalo-universitaire femme-mère-enfant, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France
| | - J Crozier
- Département de pédiatrie néonatale et réanimations, centre hospitalier universitaire de Montpellier, hôpital Arnaud-de-Villeneuve, pôle hospitalo-universitaire femme-mère-enfant, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France
| | - C Lapeyre
- Département de pédiatrie néonatale et réanimations, centre hospitalier universitaire de Montpellier, hôpital Arnaud-de-Villeneuve, pôle hospitalo-universitaire femme-mère-enfant, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France
| | - C Combes
- Département de pédiatrie néonatale et réanimations, centre hospitalier universitaire de Montpellier, hôpital Arnaud-de-Villeneuve, pôle hospitalo-universitaire femme-mère-enfant, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France
| | - N Nagot
- Département de l'information médicale, centre hospitalier universitaire de Montpellier, hôpital Arnaud-de-Villeneuve, pôle hospitalo-universitaire femme-mère-enfant, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France
| | - G Cambonie
- Département de pédiatrie néonatale et réanimations, centre hospitalier universitaire de Montpellier, hôpital Arnaud-de-Villeneuve, pôle hospitalo-universitaire femme-mère-enfant, 371, avenue du Doyen-Gaston-Giraud, 34295 Montpellier cedex 5, France.
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[Can a simple lung ultrasound score predict length of ventilation for infants with severe acute viral bronchiolitis?]. Arch Pediatr 2017; 25:112-117. [PMID: 29248322 DOI: 10.1016/j.arcped.2017.11.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 09/11/2017] [Accepted: 11/05/2017] [Indexed: 11/21/2022]
Abstract
BACKGROUND Lung ultrasound (LU) is a bedside point-of-care technique in critical care and emergency medicine. LU is quick and non-irradiating, and provides accurate diagnostic information when compared with chest radiographs. Specific LU signs have been described for bronchiolitis. This study aimed to evaluate the correlation between severity of LU-diagnosed lung lesions, using a quantitative LU score, and the length of non-invasive ventilation (LOV) for infants diagnosed with severe viral bronchiolitis. METHODS This was a prospective observational single-center study conducted at a level 3 pediatric intensive care unit. A LU score was calculated for 47 infants under 6 months of age with severe acute viral bronchiolitis during the 2015-2016 epidemic, and the number of intercostal spaces with consolidation or interstitial syndrome was counted for each lung. The LU score is based on the presence of A lines or B-line artifacts and consolidation (0-2 points). The modified Wood score (mWCAS) was used to define clinical severity. Other parameters such as gestational age at birth, age, supplemental oxygen (LOS), and length of stay were recorded. All LU scans were later reviewed by two trained ultrasonographers to assess the score's inter-rater reproducibility. RESULTS The LU score on admission (3.5±2.6) did not correlate with LOV (69±68.6), mWCAS score (4±1.6), LOS (3±3.4), or length of stay (4±3.4). However, there was a significant correlation between the number of affected intercostal spaces on the right and LOS (Spearman's Rho 0.318; P=0.037). CONCLUSION This is the first study to evaluate the use of LU in infants needing PICU admission for severe acute bronchiolitis. The LU score does not correlate with LOV, mWCAS, LOS, or length of stay, but the number of pathological intercostal spaces on the right side correlates significantly with LOS. Although LU scores have been validated for the newborn and the adult, this has been in the setting of restrictive lung diseases. Bronchiolitis is a predominantly obstructive lung disease and this may explain the lack of performance observed.
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