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Molina Corbacho M, Rodríguez Martínez M, Álvarez Montañana P, Modesto I Alapont V. Hyperlacticaemia in children with status asthmaticus. The Stewart approach. Rev Esp Anestesiol Reanim (Engl Ed) 2024:S2341-1929(24)00078-7. [PMID: 38657950 DOI: 10.1016/j.redare.2024.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 10/23/2023] [Indexed: 04/26/2024]
Abstract
BACKGROUND Patients with status asthmaticus (SA) frequently present with lactic acidosis (LA). Our goal is to identify the nature of this LA using the Stewart physicochemical model and to identify the independent factors associated with LA in children with SA. METHODS Analytical study of a retrospective cohort using a nested case-control design. Twenty-eight episodes of SA in 24 children were included. Patients admitted to a paediatric intensive care unit (PICU) for SA over a 9-year period were recruited consecutively. Data were analysed using the Stewart model and the Strong Ion Calculator. Data were analysed using descriptive statistics and regression models were fitted within the general linear model. RESULTS Hyperlacticaemia (Lact[mM/L] = 3.905 [95% CI = 3.018-4.792]) and acidosis (pH = 7.294 [95% CI = 7.241-7.339]) were observed in 18 episodes (15 patients; 62.5%). According to the Stewart model, acidosis was caused by a decrease in strong ion difference. Initially, pCO2 was high (pCO2[mmHg] = 45.806 [95% CI = 37.314-54.298]) but the net unmeasured ion (NUI) component was normal (NUI = -4,461 [95% CI = -3.51 to -5.412]), and neither changed significantly over the clinical course. There was no need to determine pyruvate, as the NUI was normal and the LA was type B (non-hypoxic, lactate/pyruvate < 25). We observed a correlation (P = .023) between LA and intramuscular epinephrine administered on arrival at hospital, but not between LA and the cumulative dose of nebulized salbutamol. CONCLUSIONS Most patients with SA presented LA. The Stewart model confirmed that LA is not hypoxic, probably due to sympathomimetic-related glycolysis.
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Affiliation(s)
- M Molina Corbacho
- Cuidados Intensivos Pediátricos, Hospital Universitari i Politècnic La Fe, Valencia, Spain.
| | - M Rodríguez Martínez
- Cuidados Intensivos Pediátricos y Neonatales, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - P Álvarez Montañana
- Cuidados Intensivos Pediátricos, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - V Modesto I Alapont
- Unidad de Cuidados Intensivos Pediátricos, Hospital Universitari i Politècnic La Fe, Valencia, Spain
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López A, García B, Gómez A, González L, González N, Martín L, Jaime G. Concordance of the ions and GAP anion obtained by gasometry vs standard laboratory in critical care. Med Intensiva 2018; 43:521-527. [PMID: 30193741 DOI: 10.1016/j.medin.2018.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 06/22/2018] [Accepted: 06/25/2018] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To evaluate the differences observed in ion and GAP anion determinations obtained by point-of-care (POC) blood gas versus laboratory biochemical testing, and to analyze the possible errors according to the limits of normality. MATERIAL AND METHODS A descriptive, cross-sectional retrospective study was made to assess concordance between two diagnostic tests in patients admitted to the Critical Care Unit of Ourense University Hospital Complex (Spain), between July and November 2015, involving at least one coinciding biochemical test and POC determination. Patients under 18years of age were excluded. RESULTS A total of 1,073 samples were analyzed. Lin's concordance correlation coefficients for sodium, potassium and chlorine were 0.87, 0.84 and 0.72, respectively. Kappa concordance of the normality limits for sodium, potassium and chlorine was 0.63, 0.74 and 0.32. The results indicated poor correlation of the anion GAP and null concordance between POC and biochemical testing, including the value corrected for albumin. CONCLUSIONS Poor concordance was observed between the ion values as determined by biochemistry and blood gases; the two methods are therefore not interchangeable. Kappa agreement with normality limits was good for sodium and potassium, and weak for chlorine. Possible validity was noted in orienting the classification within the ion limits, with the exception of chlorine. No agreement was recorded in relation to the anion GAP, even that corrected for albumin.
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Affiliation(s)
- A López
- Grupo de Investigación en Anestesia y Cuidados Críticos, Instituto de Investigación Sanitaria Galicia SUR (ISS Galicia Sur), SERGAS-UVIGO, Vigo, Pontevedra, España; Servicio de Anestesia y Reanimación, Complexo Hospitalario Universitario de Ourense (CHUO), SERGAS, Ourense, España.
| | - B García
- Grupo de Investigación en Anestesia y Cuidados Críticos, Instituto de Investigación Sanitaria Galicia SUR (ISS Galicia Sur), SERGAS-UVIGO, Vigo, Pontevedra, España; Servicio de Anestesiología, Reanimación y Terapia del Dolor, Hospital Costa del Sol, Marbella, Málaga, España
| | - A Gómez
- Grupo de Investigación en Anestesia y Cuidados Críticos, Instituto de Investigación Sanitaria Galicia SUR (ISS Galicia Sur), SERGAS-UVIGO, Vigo, Pontevedra, España; Servicio de Anestesia y Reanimación, Complexo Hospitalario Universitario de Ourense (CHUO), SERGAS, Ourense, España
| | - L González
- Grupo de Investigación en Anestesia y Cuidados Críticos, Instituto de Investigación Sanitaria Galicia SUR (ISS Galicia Sur), SERGAS-UVIGO, Vigo, Pontevedra, España; Servicio de Anestesia y Reanimación, Complexo Hospitalario Universitario de Ourense (CHUO), SERGAS, Ourense, España
| | - N González
- Grupo de Investigación en Anestesia y Cuidados Críticos, Instituto de Investigación Sanitaria Galicia SUR (ISS Galicia Sur), SERGAS-UVIGO, Vigo, Pontevedra, España; Servicio de Anestesia y Reanimación, Complexo Hospitalario Universitario de Ourense (CHUO), SERGAS, Ourense, España
| | - L Martín
- Grupo de Investigación en Anestesia y Cuidados Críticos, Instituto de Investigación Sanitaria Galicia SUR (ISS Galicia Sur), SERGAS-UVIGO, Vigo, Pontevedra, España; Servicio de Anestesia y Reanimación, Complexo Hospitalario Universitario de Ourense (CHUO), SERGAS, Ourense, España
| | - G Jaime
- Servicio de Análisis Clínicos, Complexo Hospitalario Universitario de Ourense (CHUO), SERGAS, Ourense, España
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