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Liu HF, Feng QL, Huang RW, Yuan TY, Sui MZ, Li PL, Liu K, Li F, Li Y, Jiang L, Fu HM. [Clinical characteristics of hospitalized children with respiratory syncytial virus infection and risk prediction of severe illness during the post-COVID-19 era in Kunming]. Zhonghua Er Ke Za Zhi 2024; 62:323-330. [PMID: 38527502 DOI: 10.3760/cma.j.cn112140-20240219-00109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Objective: To compare the epidemiological and clinical characteristics of hospitalized children with respiratory syncytial virus (RSV) infection in Kunming among the pre-and post-COVID-19 era, and to establish a prediction model for severe RSV infection in children during the post-COVID-19 period. Methods: This was a retrospective study. Clinical and laboratory data were collected from 959 children hospitalized with RSV infection in the Department of Pulmonary and Critical Care Medicine at Kunming Children's Hospital during January to December 2019 and January to December 2023. Patients admitted in 2019 were defined as the pre-COVID-19 group, while those admitted in 2023 were classified as the post-COVID-19 group. Epidemiological and clinical characteristics were compared between the two groups. Subsequently, comparison of the clinical severity among the two groups was performed based on propensity score matching (PSM). Furthermore, the subjects in the post-COVID-19 group were divided into severe and non-severe groups based on clinical severity. Chi-square test and Mann-Whitney U test were used for pairwise comparison between groups, and multivariate Logistic regression was applied for the identification of independent risk factors and construction of the prediction model. The receiver operating characteristic (ROC) curve and calibration curve were employed to evaluate the predictive performance of this model. Results: Among the 959 children hospitalized with RSV infection, there were 555 males and 404 females, with an onset age of 15.4 (7.3, 28.5) months. Of which, there were 331 cases in the pre-COVID-19 group and 628 cases in the post-COVID-19 group. The peak period of RSV hospitalization in the post-COVID-19 group were from May to October 2023, and the monthly number of inpatients for each of these months were as follows: 72 cases (11.5%), 98 cases (15.6%), 128 cases (20.4%), 101 cases (16.1%), 65 cases (10.4%), and 61 cases (9.7%), respectively. After PSM for general data, 267 cases were matched in each group. The proportion of wheezing in the post-COVID-19 group was lower than that in the pre-COVID-19 group (109 cases (40.8%) vs. 161 cases (60.3%), χ2=20.26, P<0.001), while the incidences of fever, tachypnea, seizures, severe case, neutrophil-to-lymphocyte ratio (NLR), C-reactive protein and interleukin-6 levels were all higher than those in the pre-COVID-19 group (146 cases (54.7%) vs. 119 cases (44.6%), 117 cases (43.8%) vs. 89 cases (33.3%), 37 cases (13.9%) vs. 14 cases (5.2%), 69 cases (25.8%) vs. 45 cases (16.9%), 3.6 (1.9, 6.4) vs. 2.3 (1.8, 4.6), 9.9 (7.1, 15.2) vs. 7.8 (4.5, 13.9) mg/L, 20.5 (15.7, 30.4) vs. 17.2 (11.0, 26.9) ng/L, χ2=5.46, 6.36, 11.47, 6.42, Z=4.13, 3.06, 2.96, all P<0.05). There were 252 cases and 107 cases with co-infection in the post-and pre-COVID-19 groups, respectively. The proportion of triple and quadruple infection in the post-COVID-19 group was higher than that in the pre-COVID-19 group (59 cases (23.4%) vs. 13 cases (12.1%), 30 cases (11.9%) vs. 5 cases (4.7%), χ2=5.94, 4.46, both P<0.05). Among the 252 cases with co-infection in post-COVID-19 group, the most prevalent pathogens involving in co-infections, in order, were Mycoplasma pneumoniae 56 cases (22.2%), Influenza A virus 53 cases (21.0%), Rhinovirus 48 cases (19.0%), Parainfluenza virus 35 cases (13.9%), and Adenovirus 28 cases (11.1%).The result of multivariate Logistic regression showed that age (OR=0.70, 95%CI 0.62-0.78, P<0.001), underlying diseases (OR=10.03, 95%CI 4.10-24.55, P<0.001), premature birth (OR=6.78, 95%CI 3.53-13.04, P<0.001), NLR (OR=1.85, 95%CI 1.09-3.15, P=0.023), and co-infection (OR=1.28, 95%CI 1.18-1.38, P<0.001) were independently associated with the development of severe RSV infection in the post-COVID-19 group. The ROC curve of the prediction model integrating the above five factors indicated an area under the curve of 0.85 (95%CI 0.80-0.89, P<0.001), with an optimal cutoff of 0.21, a sensitivity of 0.83 and a specificity of 0.80. The calibration curve showed that the predicted probability in this model did not differ significantly from the actual probability (P=0.319). Conclusions: In the post-COVID-19 era in Kunming, the peak in pediatric hospitalizations for RSV infection was from May to October, with declined incidence of wheezing and increased incidence of fever, tachypnea, seizures, severe cases, and rates of triple and quadruple co-infections. Age, underlying diseases, premature birth, NLR, and co-infection were identified as independent risk factors for severe RSV infection in the post-COVID-19 period. In this study, a risk prediction model for severe pediatric RSV infection was established, which had a good predictive performance.
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Affiliation(s)
- H F Liu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - Q L Feng
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - R W Huang
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - T Y Yuan
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - M Z Sui
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - P L Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - K Liu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - F Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - Y Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - L Jiang
- Department of Laboratory Medicine, Kunming Children's Hospital, Kunming 650034, China
| | - H M Fu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
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Cooper CB. Metronome-Paced Tachypnea: A Simple, Repeatable Method for Inducing Dynamic Hyperinflation. Am J Respir Crit Care Med 2024; 209:337-339. [PMID: 38099723 DOI: 10.1164/rccm.202308-1515le] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024] Open
Affiliation(s)
- Christopher B Cooper
- Department of Medicine and
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
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3
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Cola RB, Roccaro-Waldmeyer DM, Naim S, Babalian A, Seebeck P, Alvarez-Bolado G, Celio MR. Chemo- and optogenetic activation of hypothalamic Foxb1-expressing neurons and their terminal endings in the rostral-dorsolateral PAG leads to tachypnea, bradycardia, and immobility. eLife 2024; 12:RP86737. [PMID: 38300670 PMCID: PMC10945554 DOI: 10.7554/elife.86737] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024] Open
Abstract
Foxb1 -expressing neurons occur in the dorsal premammillary nucleus (PMd) and further rostrally in the parvafox nucleus, a longitudinal cluster of neurons in the lateral hypothalamus of rodents. The descending projection of these Foxb1+ neurons end in the dorsolateral part of the periaqueductal gray (dlPAG). The functional role of the Foxb1+ neuronal subpopulation in the PMd and the parvafox nucleus remains elusive. In this study, the activity of the Foxb1+ neurons and of their terminal endings in the dlPAG in mice was selectively altered by employing chemo- and optogenetic tools. Our results show that in whole-body barometric plethysmography, hM3Dq-mediated, global Foxb1+ neuron excitation activates respiration. Time-resolved optogenetic gain-of-function manipulation of the terminal endings of Foxb1+ neurons in the rostral third of the dlPAG leads to abrupt immobility and bradycardia. Chemogenetic activation of Foxb1+ cell bodies and ChR2-mediated excitation of their axonal endings in the dlPAG led to a phenotypical presentation congruent with a 'freezing-like' situation during innate defensive behavior.
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Affiliation(s)
- Reto B Cola
- Anatomy and program in Neuroscience, Faculty of Science and Medicine, University of FribourgFribourgSwitzerland
| | - Diana M Roccaro-Waldmeyer
- Anatomy and program in Neuroscience, Faculty of Science and Medicine, University of FribourgFribourgSwitzerland
| | - Samara Naim
- Anatomy and program in Neuroscience, Faculty of Science and Medicine, University of FribourgFribourgSwitzerland
| | - Alexandre Babalian
- Anatomy and program in Neuroscience, Faculty of Science and Medicine, University of FribourgFribourgSwitzerland
| | - Petra Seebeck
- Zurich integrative Rodent Physiology (ZIRP), University of ZürichZürichSwitzerland
| | | | - Marco R Celio
- Anatomy and program in Neuroscience, Faculty of Science and Medicine, University of FribourgFribourgSwitzerland
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4
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Fan L, Hong K, Allen BD, Paul R, Carr JC, Zhang S, Passman R, Robinson JD, Lee DC, Rigsby CK, Kim D. Ultra-rapid, Free-breathing, Real-time Cardiac Cine MRI Using GRASP Amplified with View Sharing and KWIC Filtering. Radiol Cardiothorac Imaging 2024; 6:e230107. [PMID: 38358330 PMCID: PMC10912880 DOI: 10.1148/ryct.230107] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 12/06/2023] [Accepted: 01/02/2024] [Indexed: 02/16/2024]
Abstract
Purpose To achieve ultra-high temporal resolution (approximately 20 msec) in free-breathing, real-time cardiac cine MRI using golden-angle radial sparse parallel (GRASP) reconstruction amplified with view sharing (VS) and k-space-weighted image contrast (KWIC) filtering. Materials and Methods Fourteen pediatric patients with congenital heart disease (mean age [SD], 9 years ± 2; 13 male) and 10 adult patients with arrhythmia (mean age, 62 years ± 8; nine male) who underwent both standard breath-hold cine and free-breathing real-time cine using GRASP were retrospectively identified. To achieve high temporal resolution, each time frame was reconstructed using six radial spokes, corresponding to acceleration factors ranging from 24 to 32. To compensate for loss in spatial resolution resulting from over-regularization in GRASP, VS and KWIC filtering were incorporated. The blur metric, visual image quality scores, and biventricular parameters were compared between clinical and real-time cine images. Results In pediatric patients, the incorporation of VS and KWIC into GRASP (ie, GRASP + VS + KWIC) produced significantly (P < .05) sharper x-y-t (blur metric: 0.36 ± 0.03, 0.41 ± 0.03, 0.48 ± 0.03, respectively) and x-y-f (blur metric: 0.28 ± 0.02, 0.31 ± 0.03, 0.37 ± 0.03, respectively) component images compared with GRASP + VS and conventional GRASP. Only the noise score differed significantly between GRASP + VS + KWIC and clinical cine; all visual scores were above the clinically acceptable (3.0) cutoff point. Biventricular volumetric parameters strongly correlated (R2 > 0.85) between clinical and real-time cine images reconstructed with GRASP + VS + KWIC and were in good agreement (relative error < 6% for all parameters). In adult patients, the visual scores of all categories were significantly lower (P < .05) for clinical cine compared with real-time cine with GRASP + VS + KWIC, except for noise (P = .08). Conclusion Incorporating VS and KWIC filtering into GRASP reconstruction enables ultra-high temporal resolution (approximately 20 msec) without significant loss in spatial resolution. Keywords: Cine, View Sharing, k-Space-weighted Image Contrast Filtering, Radial k-Space, Pediatrics, Arrhythmia, GRASP, Compressed Sensing, Real-Time, Free-Breathing Supplemental material is available for this article. © RSNA, 2024.
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Affiliation(s)
- Lexiaozi Fan
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - KyungPyo Hong
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - Bradley D. Allen
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - Rupsa Paul
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - James C. Carr
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - Sarah Zhang
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - Rod Passman
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - Joshua D. Robinson
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - Daniel C. Lee
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - Cynthia K. Rigsby
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
| | - Daniel Kim
- From the Department of Radiology (L.F., K.P.H., B.D.A., R.P., J.C.C.,
S.Z., J.D.R., C.K.R., D.K.), Department of Preventive Medicine, Bluhm
Cardiovascular Institute (R.P.), Department of Pediatrics (J.D.R., C.K.R.), and
Division of Cardiology, Department of Internal Medicine (D.C.L.), Northwestern
University Feinberg School of Medicine, 737 N Michigan Ave, Ste 1600, Chicago,
IL 60611; Department of Biomedical Engineering, Northwestern University,
Evanston, Ill (L.F., D.K.); and Division of Cardiology (J.D.R.) and Department
of Medical Imaging (C.K.R.), Ann & Robert H. Lurie Children’s
Hospital of Chicago, Chicago, Ill
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Piasecki RJ, Hunt EA, Perrin N, Spaulding EM, Winters B, Samuel L, Davidson PM, Chandra Strobos N, Churpek M, Himmelfarb CR. Using rapid response system trigger clusters to characterize patterns of clinical deterioration among hospitalized adult patients. Resuscitation 2024; 194:110041. [PMID: 37952578 PMCID: PMC10842078 DOI: 10.1016/j.resuscitation.2023.110041] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/31/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Many rapid response system (RRS) events are activated using multiple triggers. However, the patterns in which multiple RRS triggers occur together to activate RRS events are unknown. The purpose of this study was to identify these patterns (RRS trigger clusters) and determine their association with outcomes among hospitalized adult patients. METHODS RRS events among adult patients from January 2015 to December 2019 in the Get With The Guidelines- Resuscitation registry's MET module were examined (n = 134,406). Cluster analysis methods were performed to identify RRS trigger clusters. Pearson's chi-squared and ANOVA tests were used to examine differences in patient characteristics across RRS trigger clusters. Multilevel logistic regressions were used to examine the associations between RRS trigger clusters and outcomes. RESULTS Six RRS trigger clusters were identified. Predominant RRS triggers for each cluster were: tachypnea, new onset difficulty in breathing, decreased oxygen saturation (Cluster 1); tachypnea, decreased oxygen saturation, staff concern (Cluster 2); respiratory depression, decreased oxygen saturation, mental status changes (Cluster 3); tachycardia, staff concern (Cluster 4); mental status changes (Cluster 5); hypotension, staff concern (Cluster 6). Significant differences in patient characteristics were observed across clusters. Patients in Clusters 3 and 6 had an increased likelihood of in-hospital cardiac arrest (p < 0.01). All clusters had an increased risk of mortality (p < 0.01). CONCLUSIONS We discovered six novel RRS trigger clusters with differing relationships to adverse patient outcomes. RRS trigger clusters may prove crucial in clarifying the associations between RRS events and adverse outcomes and aiding in clinician decision-making during RRS events.
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Affiliation(s)
- Rebecca J Piasecki
- Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, United States.
| | - Elizabeth A Hunt
- Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, United States
| | - Nancy Perrin
- Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, United States
| | - Erin M Spaulding
- Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, United States
| | - Bradford Winters
- Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, United States
| | - Laura Samuel
- Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, United States
| | - Patricia M Davidson
- University of Wollongong Australia, Northfields Ave., Wollongong, NSW 2522, Australia
| | | | - Matthew Churpek
- University of Wisconsin-Madison, Union South, 1308 W. Dayton St., Madison, WI 53715, United States
| | - Cheryl R Himmelfarb
- Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, United States
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6
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Sato S, Ishida K, Tanaka NI, Katayama K. Impact of high-intensity interval hyperpnea on aerobic energy release and inspiratory muscle fatigue. Respir Physiol Neurobiol 2024; 319:104170. [PMID: 37838229 DOI: 10.1016/j.resp.2023.104170] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 09/27/2023] [Accepted: 10/06/2023] [Indexed: 10/16/2023]
Abstract
Respiratory muscle endurance training reportedly has beneficial effects on whole-body endurance performance. We produced a novel high-intensity interval (HII) protocol and characterized the associated physiological responses and respiratory muscle fatigue. Peak oxygen uptake of respiratory muscle (V̇O2peakRM) was estimated during the respiratory incremental test. The HII session consisted of five 3-minute hyperpnea periods at 100%V̇O2peakRM interspersed with 2-minute periods at 40%V̇O2peakRM (25 min total). The high-intensity continuous (HIC) session involved a single time-to-end bout of hyperpnea at 100%V̇O2peakRM. The moderate-intensity continuous (MIC) session involved 25 min of hyperpnea at 60% of maximal voluntary ventilation. V̇O2RM was recorded continuously, and maximal inspiratory pressure (PImax) was assessed before and after the sessions. HII session: V̇O2RM gradually increased as the sets proceeded, whereas PImax decreased significantly. HIC session: V̇O2RM increased progressively, and the time to end was 6.5 ± 0.5 min. PImax decreased significantly. MIC session: V̇O2RM did not change for 25 min, and PImax remained unchanged. The duration of V̇O2RM at near- and supra-maximal levels in the HII session (10 ± 1 min) was longer than that in the HIC session (4 ± 1 min). The decrease in PImax was larger in the HII session (-12 ± 3 %) than MIC session (-4 ± 3 %). The HII protocol is characterized by a longer time to maximally stimulate the aerobic energy system of respiratory muscle than the HIC protocol and greater inspiratory muscle fatigue than the traditional MIC protocol. These results suggest that the HII protocol could enhance the efficacy of respiratory muscle training programs.
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Affiliation(s)
- Suzuna Sato
- Graduate School of Education and Human Development, Nagoya University, Nagoya, Japan
| | - Koji Ishida
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan; Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Noriko I Tanaka
- Graduate School of Education and Human Development, Nagoya University, Nagoya, Japan; Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - Keisho Katayama
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan; Graduate School of Medicine, Nagoya University, Nagoya, Japan.
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7
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Scholten AWJ, Zhan Z, Niemarkt HJ, Vervoorn M, van Leuteren RW, de Jongh FH, van Kaam AH, Heuvel ERVD, Hutten GJ. Cardiorespiratory monitoring with a wireless and nonadhesive belt measuring diaphragm activity in preterm and term infants: A multicenter non-inferiority study. Pediatr Pulmonol 2023; 58:3574-3581. [PMID: 37795597 DOI: 10.1002/ppul.26695] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/18/2023] [Accepted: 09/05/2023] [Indexed: 10/06/2023]
Abstract
INTRODUCTION We determined if the heart rate (HR) monitoring performance of a wireless and nonadhesive belt is non-inferior compared to standard electrocardiography (ECG). Secondary objective was to explore the belt's respiratory rate (RR) monitoring performance compared to chest impedance (CI). METHOD In this multicenter non-inferiority trial, preterm and term infants were simultaneously monitored with the belt and conventional ECG/CI for 24 h. HR monitoring performance was estimated with the HR difference and ability to detect cardiac events compared to the ECG, and the incidence of HR-data loss per second. These estimations were statistically compared to prespecified margins to confirm equivalence/non-inferiority. Exploratory RR analyses estimated the RR trend difference and ability to detect apnea/tachypnea compared to CI, and the incidence of RR-data loss per second. RESULTS Thirty-nine infants were included. HR monitoring with the belt was non-inferior to the ECG with a mean HR difference of 0.03 beats per minute (bpm) (standard error [SE] = 0.02) (95% limits of agreement [LoA]: [-5 to 5] bpm) (p < 0.001). Second, sensitivity and positive predictive value (PPV) for cardiac event detection were 94.0% (SE = 0.5%) and 92.6% (SE = 0.6%), respectively (p ≤ 0.001). Third, the incidence of HR-data loss was 2.1% (SE = 0.4%) per second (p < 0.05). The exploratory analyses of RR showed moderate trend agreement with a mean RR-difference of 3.7 breaths/min (SE = 0.8) (LoA: [-12 to 19] breaths/min), but low sensitivities and PPV's for apnea/tachypnea detection. The incidence of RR-data loss was 2.2% (SE = 0.4%) per second. CONCLUSION The nonadhesive, wireless belt showed non-inferior HR monitoring and a moderate agreement in RR trend compared to ECG/CI. Future research on apnea/tachypnea detection is required.
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Affiliation(s)
- Anouk W J Scholten
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Reproduction & Development Research Institute, Amsterdam, The Netherlands
| | - Zhuozhao Zhan
- Department of Mathemaatics and Computer Science, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Hendrik J Niemarkt
- Department of Neonatology, Màxima Medical Center, Veldhoven, The Netherlands
| | - Marieke Vervoorn
- Department of Neonatology, Màxima Medical Center, Veldhoven, The Netherlands
| | - Ruud W van Leuteren
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Reproduction & Development Research Institute, Amsterdam, The Netherlands
| | - Frans H de Jongh
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Anton H van Kaam
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Reproduction & Development Research Institute, Amsterdam, The Netherlands
| | - Edwin R van den Heuvel
- Department of Mathemaatics and Computer Science, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Gerard J Hutten
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Reproduction & Development Research Institute, Amsterdam, The Netherlands
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Abraha D, Gebreyes E, Wolka E, Dender G, Sorsa A, Muhumuza J. Determinants of adverse management outcomes of blunt abdominal trauma patients operated at a referral hospital in southern Ethiopia: a retrospective record review. BMC Surg 2023; 23:357. [PMID: 37990208 PMCID: PMC10664474 DOI: 10.1186/s12893-023-02261-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 11/07/2023] [Indexed: 11/23/2023] Open
Abstract
BACKGROUND Abdominal trauma is one of the common reasons for emergency visits yet there is paucity of data about the subject in the horn of Africa. This study was aimed at determining the determinants of adverse management outcomes of blunt abdominal trauma among operated patients at Wolaita Sodo University Teaching and Referral Hospital, Ethiopia. METHODS This was a three-year retrospective review conducted among 128 patient records selected using purposive sampling in which all records for the patients operated for a diagnosis of blunt abdominal trauma during the study period were included. A pretested checklist was used to extract the data relating to adverse outcomes and characteristics of the patients. A descriptive analysis followed by logistic regression was done. RESULTS Of the 128 patients, adverse management outcomes related to blunt abdominal trauma occurred in 52%. Patients residing in rural areas (adjusted odds ratio 3.23, 95% confidence interval: 1.13-9.24) and those with tachycardia, (adjusted odds ratio = 3.25, 95% confidence interval: 1.19-8.83) or tachypnea (adjusted odds ratio 3.25, 95% confidence interval: 1.19-8.83) were more likely to have adverse management outcomes. CONCLUSION Adverse management outcomes are relatively high and associated with rural residence and deranged vital signs (tachycardia and tachypnea). Close monitoring targeting patients from rural residence and those presenting with tachycardia and tachypnea is recommended.
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Affiliation(s)
- Demoz Abraha
- Department of Surgery, College of Heath Sciences and Medicine, Wolaita Sodo University Teaching and Referral Hospital, Wolaita Sodo, Ethiopia.
| | - Essay Gebreyes
- Department of Surgery, College of Heath Sciences and Medicine, Wolaita Sodo University Teaching and Referral Hospital, Wolaita Sodo, Ethiopia
| | - Eskinder Wolka
- Department of Surgery, College of Heath Sciences and Medicine, Wolaita Sodo University Teaching and Referral Hospital, Wolaita Sodo, Ethiopia
| | - Getahun Dender
- Department of Surgery, College of Heath Sciences and Medicine, Wolaita Sodo University Teaching and Referral Hospital, Wolaita Sodo, Ethiopia
| | - Abebe Sorsa
- Department of Surgery, College of Heath Sciences and Medicine, Wolaita Sodo University Teaching and Referral Hospital, Wolaita Sodo, Ethiopia
| | - Joshua Muhumuza
- Department of surgery, Faculty of clinical medicine and dentistry, Kampala international university- western campus, Ishaka-Bushenyi, Uganda.
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Behrens R, Dutschmann M, Trewella M, Mazzone SB, Moe AAK. Regulation of vagally-evoked respiratory responses by the lateral parabrachial nucleus in the mouse. Respir Physiol Neurobiol 2023; 316:104141. [PMID: 37597796 DOI: 10.1016/j.resp.2023.104141] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/04/2023] [Accepted: 08/14/2023] [Indexed: 08/21/2023]
Abstract
Vagal sensory inputs to the brainstem can alter breathing through the modulation of pontomedullary respiratory circuits. In this study, we set out to investigate the localised effects of modulating lateral parabrachial nucleus (LPB) activity on vagally-evoked changes in breathing pattern. In isoflurane-anaesthetised and instrumented mice, electrical stimulation of the vagus nerve (eVNS) produced stimulation frequency-dependent changes in diaphragm electromyograph (dEMG) activity with an evoked tachypnoea and apnoea at low and high stimulation frequencies, respectively. Muscimol microinjections into the LPB significantly attenuated eVNS-evoked respiratory rate responses. Notably, muscimol injections reaching the caudal LPB, previously unrecognised for respiratory modulation, potently modulated eVNS-evoked apnoea, whilst muscimol injections reaching the intermediate LPB selectively modulated the eVNS-evoked tachypnoea. The effects of muscimol on eVNS-evoked breathing rate changes occurred without altering basal eupneic breathing. These results highlight novel roles for the LPB in regulating vagally-evoked respiratory reflexes.
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Affiliation(s)
- Robert Behrens
- Department of Anatomy and Physiology, University of Melbourne, VIC, Australia
| | - Mathias Dutschmann
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - Matthew Trewella
- Department of Anatomy and Physiology, University of Melbourne, VIC, Australia
| | - Stuart B Mazzone
- Department of Anatomy and Physiology, University of Melbourne, VIC, Australia.
| | - Aung Aung Kywe Moe
- Department of Anatomy and Physiology, University of Melbourne, VIC, Australia; Department of Medical Imaging and Radiation Sciences, Monash University, Clayton, Australia
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Balaji BS, Vijayasekaran D, Arunagirinathan V, Srivatsav NS. Utility of Transbronchial Cryobiopsy via Flexible Bronchoscope in Diagnosis of Isolated Pulmonary LCH: A Case Report. Indian J Pediatr 2023; 90:826-828. [PMID: 36763252 DOI: 10.1007/s12098-022-04453-0] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 11/04/2022] [Indexed: 02/11/2023]
Abstract
Flexible bronchoscopes are increasingly being used in diagnostic and therapeutic medicine and have obviated the need for and risks associated with general anesthesia. Here the authors present the case of a 2-y-old girl who was diagnosed with isolated pulmonary Langerhans cell histiocytosis by histopathology; a lung biopsy sample was obtained using a cryoprobe via a flexible bronchoscope. The girl was brought in with complaints of loss of weight, appetite loss, and rapid breathing for the past 2 mo. Examination revealed hypoxia, tachypnea, clubbing with failure to thrive, and bilateral crepitations on auscultation. Imaging studies showed ground-glass opacities with multiple cystic lesions in both lungs. A preliminary diagnosis of LCH was made, and transbronchial cryobiopsy was done via a flexible bronchoscope. Histopathology confirmed the diagnosis with Cluster of differentiation 1a (CD1a) staining. A flexible bronchoscope can be a useful tool for obtaining lung biopsy samples using a cryoprobe in children.
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Affiliation(s)
- B Sarath Balaji
- Department of Pediatric Pulmonology, Institute of Child Health, Madras Medical College, Chennai, Tamil Nadu, India.
| | - D Vijayasekaran
- Department of Pediatrics, Apollo Children's Hospital, Chennai, Tamil Nadu, India
| | - V Arunagirinathan
- Department of Pediatric Pulmonology, Institute of Child Health, Madras Medical College, Chennai, Tamil Nadu, India
| | - N Sathya Srivatsav
- Department of Pediatric Pulmonology, Fellow in Pediatric Pulmonology, Institute of Child Health, Madras Medical College, Chennai, Tamil Nadu, India
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Liang D, Lvovich S, Kuzma N. 2-Year-Old Male With Fever, an Urticarial Rash, and Tachypnea. Clin Pediatr (Phila) 2023; 62:529-532. [PMID: 36401359 DOI: 10.1177/00099228221137155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Danni Liang
- Department of Pediatrics, St. Christopher's Hospital for Children, Philadelphia, PA, USA
| | - Svetlana Lvovich
- Section of Rheumatology, St. Christopher's Hospital for Children, Philadelphia, PA, USA
| | - Nicholas Kuzma
- Department of Pediatrics, St. Christopher's Hospital for Children, Philadelphia, PA, USA
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Ioannou A. Vaccine-induced immune thrombocytopenia and thrombosis should be considered in those presenting following the ChAdOx1 nCoV-19 vaccine with tachycardia, tachypnoea and a raised D-dimer. QJM 2022; 115:773. [PMID: 34918138 DOI: 10.1093/qjmed/hcab320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Ioannou
- From the Department of Cardiology, Royal Free Hospital, Royal Free NHS Foundation Trust, Pond Street, London NW3 2QG, UK
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13
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Hung YP, Sun KS. Response to: Vaccine-induced immune thrombocytopenia and thrombosis should be considered in those presenting following the ChAdOx1 nCoV-19 vaccine with tachycardia, tachypnoea and a raised D-dimer. QJM 2022; 115:774. [PMID: 34918166 DOI: 10.1093/qjmed/hcab321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y-P Hung
- From the Division of Internal Medicine, Saint Martin De Porres Hospital, No. 565, Sec. 2, Daya Road, Chiayi City 60069, Taiwan
- Chung-Jen Junior College of Nursing, Health Sciences and Management, Chiayi City, No 1-10 Da-Hu, Hu-Bei Village, Da-Lin Township, Chia-Yi County, Taiwan 62241, Taiwan
| | - K-S Sun
- From the Division of Internal Medicine, Saint Martin De Porres Hospital, No. 565, Sec. 2, Daya Road, Chiayi City 60069, Taiwan
- Chung-Jen Junior College of Nursing, Health Sciences and Management, Chiayi City, No 1-10 Da-Hu, Hu-Bei Village, Da-Lin Township, Chia-Yi County, Taiwan 62241, Taiwan
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El Hamzaoui H, Chajai I, El Ouazzani MC, Benhalima A, El Arfaoui M, Alilou M. Acute dapsone poisoning with methemoglobinemia: a case report. Pan Afr Med J 2022; 43:20. [PMID: 36451721 PMCID: PMC9674526 DOI: 10.11604/pamj.2022.43.20.34069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 04/01/2022] [Indexed: 11/10/2023] Open
Abstract
Methemoglobinemia is a common complication of dapsone poisoning. Its´ treatment usually relies on methylene blue infusion. The aim of this study was to report a case of an acute dapsone poisoning with methemoglobinemia treated only with ascorbic acid and activated charcoal. A 16-year-old female voluntary ingested 3 grams of dapsone in an attempt of suicide and presented with desaturation and tachypnea. Lab findings were compatible with methemoglobinemia. After two days of treatment with ascorbic acid and activated charcoal, we observed the disappearance of desaturation and tachypnea. Methemoglobinemia can be treated with ascorbic acid and activated charcoal in limited resource settings.
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Affiliation(s)
- Hamza El Hamzaoui
- Emergency Department, Faculty of Medicine and Pharmacy of Rabat, University Mohamed V of Rabat, CHU Ibn Sina, Rabat, Morocco
| | - Idriss Chajai
- Emergency Department, Faculty of Medicine and Pharmacy of Rabat, University Mohamed V of Rabat, CHU Ibn Sina, Rabat, Morocco
| | - Mohamed Chahidi El Ouazzani
- Emergency Department, Faculty of Medicine and Pharmacy of Rabat, University Mohamed V of Rabat, CHU Ibn Sina, Rabat, Morocco
| | - Abdelkader Benhalima
- Emergency Department, Faculty of Medicine and Pharmacy of Rabat, University Mohamed V of Rabat, CHU Ibn Sina, Rabat, Morocco
| | - Manal El Arfaoui
- Emergency Department, Faculty of Medicine and Pharmacy of Rabat, University Mohamed V of Rabat, CHU Ibn Sina, Rabat, Morocco
| | - Mustapha Alilou
- Emergency Department, Faculty of Medicine and Pharmacy of Rabat, University Mohamed V of Rabat, CHU Ibn Sina, Rabat, Morocco
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15
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Reyes LF, Murthy S, Garcia-Gallo E, Merson L, Ibáñez-Prada ED, Rello J, Fuentes YV, Martin-Loeches I, Bozza F, Duque S, Taccone FS, Fowler RA, Kartsonaki C, Gonçalves BP, Citarella BW, Aryal D, Burhan E, Cummings MJ, Delmas C, Diaz R, Figueiredo-Mello C, Hashmi M, Panda PK, Jiménez MP, Rincon DFB, Thomson D, Nichol A, Marshall JC, Olliaro PL. Respiratory support in patients with severe COVID-19 in the International Severe Acute Respiratory and Emerging Infection (ISARIC) COVID-19 study: a prospective, multinational, observational study. Crit Care 2022; 26:276. [PMID: 36100904 PMCID: PMC9469080 DOI: 10.1186/s13054-022-04155-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/30/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Up to 30% of hospitalised patients with COVID-19 require advanced respiratory support, including high-flow nasal cannulas (HFNC), non-invasive mechanical ventilation (NIV), or invasive mechanical ventilation (IMV). We aimed to describe the clinical characteristics, outcomes and risk factors for failing non-invasive respiratory support in patients treated with severe COVID-19 during the first two years of the pandemic in high-income countries (HICs) and low middle-income countries (LMICs). METHODS This is a multinational, multicentre, prospective cohort study embedded in the ISARIC-WHO COVID-19 Clinical Characterisation Protocol. Patients with laboratory-confirmed SARS-CoV-2 infection who required hospital admission were recruited prospectively. Patients treated with HFNC, NIV, or IMV within the first 24 h of hospital admission were included in this study. Descriptive statistics, random forest, and logistic regression analyses were used to describe clinical characteristics and compare clinical outcomes among patients treated with the different types of advanced respiratory support. RESULTS A total of 66,565 patients were included in this study. Overall, 82.6% of patients were treated in HIC, and 40.6% were admitted to the hospital during the first pandemic wave. During the first 24 h after hospital admission, patients in HICs were more frequently treated with HFNC (48.0%), followed by NIV (38.6%) and IMV (13.4%). In contrast, patients admitted in lower- and middle-income countries (LMICs) were less frequently treated with HFNC (16.1%) and the majority received IMV (59.1%). The failure rate of non-invasive respiratory support (i.e. HFNC or NIV) was 15.5%, of which 71.2% were from HIC and 28.8% from LMIC. The variables most strongly associated with non-invasive ventilation failure, defined as progression to IMV, were high leukocyte counts at hospital admission (OR [95%CI]; 5.86 [4.83-7.10]), treatment in an LMIC (OR [95%CI]; 2.04 [1.97-2.11]), and tachypnoea at hospital admission (OR [95%CI]; 1.16 [1.14-1.18]). Patients who failed HFNC/NIV had a higher 28-day fatality ratio (OR [95%CI]; 1.27 [1.25-1.30]). CONCLUSIONS In the present international cohort, the most frequently used advanced respiratory support was the HFNC. However, IMV was used more often in LMIC. Higher leucocyte count, tachypnoea, and treatment in LMIC were risk factors for HFNC/NIV failure. HFNC/NIV failure was related to worse clinical outcomes, such as 28-day mortality. Trial registration This is a prospective observational study; therefore, no health care interventions were applied to participants, and trial registration is not applicable.
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Affiliation(s)
- Luis Felipe Reyes
- Pandemic Sciences Institute, University of Oxford, Oxford, UK.
- Infectious Diseases Department, Universidad de La Sabana, Chía, Colombia.
- Critical Care Department, Clínica Universidad de La Sabana, Chía, Colombia.
| | - Srinivas Murthy
- Department of Pediatrics, University of British Columbia, Vancouver, Canada
| | | | - Laura Merson
- Pandemic Sciences Institute, University of Oxford, Oxford, UK
| | - Elsa D Ibáñez-Prada
- Infectious Diseases Department, Universidad de La Sabana, Chía, Colombia
- Critical Care Department, Clínica Universidad de La Sabana, Chía, Colombia
| | - Jordi Rello
- Clinical Research/Epidemiology in Pneumonia & Sepsis (CRIPS), Vall d'Hebron Institute of Research (VHIR), Barcelona, Spain
- Centro de Investigación Biomédica En Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Yuli V Fuentes
- Infectious Diseases Department, Universidad de La Sabana, Chía, Colombia
- Critical Care Department, Clínica Universidad de La Sabana, Chía, Colombia
| | - Ignacio Martin-Loeches
- Department of Clinical Medicine, St James's Hospital, Multidisciplinary Intensive Care Research Organization (MICRO), Dublin, Ireland
| | - Fernando Bozza
- D'Or Institute for Research and Education (IDOR), Rio de Janeiro, RJ, Brazil
- Brazilian Research in Intensive Care Network (BRICNet), Rio de Janeiro, Brazil
- Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, RJ, Brazil
| | - Sara Duque
- Infectious Diseases Department, Universidad de La Sabana, Chía, Colombia
| | - Fabio S Taccone
- Department of Intensive Care, Université Libre de Bruxelles (ULB), Brussels, Belgium
- Laboratoire de Recherche Experimentale, Department of Intensive Care, Hôpital Erasme, Brussels, Belgium
| | - Robert A Fowler
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
| | | | | | | | | | - Erlina Burhan
- Infection Division, Department of Pulmonology and Respiratory Medicine, Universitas Indonesia, Depok, Indonesia
| | - Matthew J Cummings
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | | | - Rodrigo Diaz
- Intensive Care Unit, Clinica Las Condes, Santiago, Chile
| | | | - Madiha Hashmi
- Critical Care Asia and Ziauddin University, Karachi, Pakistan
| | | | | | | | - David Thomson
- Division of Critical Care, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
| | - Alistair Nichol
- University College Dublin Clinical Research Centre at St Vincent's University Hospital, Dublin, Ireland
| | - John C Marshall
- Li Ka Shing Knowledge Institute, Unity Health Toronto, St Michael's Hospital, Toronto, ON, Canada
| | - Piero L Olliaro
- Pandemic Sciences Institute, University of Oxford, Oxford, UK
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16
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Mück A, Herter T. [69/m-Recurrent diverticulitis of the pelvic colon, tachypnea and altered mental status : Preparation course anesthesiological intensive care medicine: case 9]. Anaesthesiologie 2022; 71:48-55. [PMID: 35925178 DOI: 10.1007/s00101-022-01146-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Alexander Mück
- Klinik für Anästhesiologie und operative Intensivmedizin, Universitätsklinikum Augsburg, Stenglinstraße 2, 86156, Augsburg, Deutschland.
| | - Tobias Herter
- Klinik für Anästhesie, Intensiv- & Notfallmedizin, St. Josefskrankenhaus Freiburg, Freiburg, Deutschland
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Cho GJ, Cho KD, Kim HY, Ha S, Oh MJ, Won HS, Chung JH. Short-term neonatal and long-term infant outcome of late-preterm twins: nationwide population-based study. Ultrasound Obstet Gynecol 2022; 59:763-770. [PMID: 34931725 DOI: 10.1002/uog.24838] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 11/04/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVES To evaluate the short- and long-term outcome of late-preterm compared with term birth in twin pregnancy. METHODS This retrospective observational cohort study included all women who had a twin delivery between 1 January 2007 and 31 December 2010 recorded in the claims database of the Korea National Health Insurance, with at least one follow-up recorded in the database of the National Health Screening Program for Infants and Children. Outcomes were analyzed at the pregnancy level, with adverse outcome being defined as an adverse outcome in one or both twins, identified by a diagnosis according to the International Classification of Diseases 10th Revision. The primary short-term outcome was composite morbidity, which included any of the following: transient tachypnea, respiratory distress syndrome, necrotizing enterocolitis, intraventricular hemorrhage and bronchopulmonary dysplasia. Long-term adverse outcome included any neurological or neurodevelopmental outcome, defined by prespecified neurological and developmental diagnoses; these were assessed by following up all neonates until the end of 2018, by which time they were 8-11 years of age. Outcomes were compared between twins delivered late preterm (34 + 0 to 36 + 6 weeks) and those delivered at term (≥ 37 weeks). RESULTS Among 17 189 women who delivered twins at ≥ 34 weeks of gestation during the study period, 5032 (29.27%) women delivered in the late-preterm period. On multivariate analysis, compared with the twins delivered at term, the late-preterm twins had an increased risk for the primary short-term outcome of composite morbidity (adjusted odds ratio (aOR), 2.09; 95% CI, 1.90-2.30), including transient tachypnea (aOR, 1.85; 95% CI, 1.64-2.09), respiratory distress syndrome (aOR, 2.31; 95% CI, 2.04-2.62), necrotizing enterocolitis (aOR, 2.10; 95% CI, 1.20-3.69) and intraventricular hemorrhage (aOR, 2.13; 95% CI, 1.46-3.11). For the long-term outcome, the late-preterm twins also had an increased risk for any neurological or neurodevelopmental outcome (adjusted hazard ratio, 1.14; 95% CI, 1.07-1.21). CONCLUSIONS Twins delivered in the late-preterm period have an increased risk for short- and long-term morbidity compared with twins delivered at term. These results should be considered when determining the timing of delivery in uncomplicated twin pregnancy. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- G J Cho
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - K-D Cho
- Big Data Department, National Health Insurance Service, Gangwon-do, Korea
| | - H Y Kim
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - S Ha
- Graduate School of Statistics, Sungkyunkwan University, Seoul, Korea
| | - M-J Oh
- Department of Obstetrics and Gynecology, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - H-S Won
- Department of Obstetrics and Gynecology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - J H Chung
- Department of Obstetrics and Gynecology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Chaitanya, Ravikiran. Respiratory Distress and it's Clinical Outcome in Tertiary Care Centre. J Assoc Physicians India 2022; 70:11-2. [PMID: 35443455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
UNLABELLED Respiratory distress refers to any kind of subjective difficulty in breathing. It manifests as one or more of the following: altered breathing pattern, forced breathing efforts or obstructed breathing. Respiratory distress is defined as a clinical state characterized by increased respiratory rate(tachypnoea) and respiratory efforts. Respiratory distress is a common cause for admission in the RICU. It's the main symptom of various other systemic illness. Respiratory diseases are the most common cause for respiratory distress.Bronchiolitis and pneumonia are the most common cause of respiratory distress. More than 1/3rd of deaths observed in adults presented with severe respiratory distress and respiratory failure. Almost 2/3 rd of deaths were due to pneumonia with or without pleural involvement and made a major contribution to childhood mortality in RICU. MATERIAL The study included clinical profile and outcome of Respiratory distress patients admitted due to Pneumonia in RICU during the period from October 2020-April 2021. Results on continuous measurements were presented on Mean±SD and results on categorical measurements were presented in Frequency (Percentage). OBSERVATION Most common causes in our study was bronchopneumonia (39.7%). Among 204 patients in our study, nebulisation was required in 163(79.9%), oxygen in 182(89.2%), NIV in 72(35.3%) and invasive ventilation in 30(14.7%). Mean duration of oxygen, NIV and invasive ventilation requirement in our study was 2.16, 1.93 & 2.06 days respectively. Some patients required ICD insertion in 7(3.43%),bronchoscopic removal of FB in 1,thoracotomy in 1 and adrenaline injection in 1 patient .Inotropic support was required in 18(8.82%) patients. Out of 204 patients in our study, the average duration of stay in RICU was 4.56days, with minimum duration of stay was 4hr and maximum duration of stay was 16 days. The mortality was more in more than 50years (42.85%). The mortality was more in male patients 8(57.16%) compared to female patients 6(42.85%). The most common causes for mortality were bronchopneumonia 4(28.57%) and lobar pneumonia 2(14.28%). CONCLUSION Respiratory diseases are the most common causes of respiratory distress in adults. Non respiratory diseases causing respiratory distress is 18.62%. Most common diseases causing respiratory distress are bronchopneumonia and lobar pneumonia. Most common non-respiratory cause was DKA. Common presenting complaints in patient with respiratory distress are SOB, cough and fever. Most common respiratory distress signs were tachypnoea, nasal flaring and subcostal retractions. Mortality rate in patient with respiratory distress is 6.87%. Mortality is more in males than females Most common causes of mortality in patients with respiratory distress are bronchopneumonia and lobar pneumonia.
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Liu S, Ye Z, Zou H, Mei C, Hu Z, Xu W. [Comparison of positive and negative pressure extubation after mechanical ventilation in intensive care unit patients]. Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 2022; 34:265-268. [PMID: 35574743 DOI: 10.3760/cma.j.cn121430-20211022-01545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To investigate the effect of positive and negative pressure extubation on mechanical ventilation patients in the intensive care unit (ICU). METHODS A prospective randomized controlled study was performed, 105 ICU patients who successfully passed the spontaneous breathing test (SBT) after mechanical ventilation of Nanjing Jiangbei Hospital Affiliated to Nantong University from January 2019 to March 2021 were enrolled. According to random number table method, they were randomly divided into positive pressure extubation group (53 cases) and negative pressure extubation group (52 cases). During extubation, all patients were placed in semi-decubitus position (raising the head of bed at an angle range from 30 degree angle- 45 degree angle), the secretions from mouth, nose, throat and trachea were removed. In the negative pressure extubation group, the sputum suction tube was inserted into the tracheal tube and passed over the distal opening to carry out continuous negative pressure suction in the tracheal tube after disconnecting the ventilator. Meanwhile, after the tracheal tube balloon was evacuated, the sputum suction tube was pulled out together with the tracheal tube. In the positive pressure extubation group, the patients were guided to inspiratory forcibly under the original SBT mode. When the patients reached the inspiratory peak, the ballon was evacuated and the tracheal tube was removed. After extubation, all patients were given nasal catheter oxygen inhalation (oxygen flow 5 L/min). Arterial blood gas analysis indexes [pH value, arterial partial pressure of oxygen (PaO2) and arterial partial pressure of carbon dioxide (PaCO2)] were recorded 5 minutes and 1 hour after extubation in both groups. Vital signs (including tachypnea, tachycardia, elevated blood pressure and decreased oxygen saturation) and complications (including severe cough, airway hyperresponsiveness and pneumonia) were observed 30 minutes after extubation in both groups. RESULTS Five minutes after extubation, blood gas analysis showed that the PaO2 of positive pressure extubation group was significantly higher than that of negative pressure extubation group [mmHg (1 mmHg ≈ 0.133 kPa): 123.4±30.2 vs. 111.0±21.1, P < 0.05], the pH value and PaCO2 in positive pressure extubation group were slightly lower than that of negative pressure extubation group [pH value: 7.411±0.042 vs. 7.419±0.040, PaCO2 (mmHg): 39.7±4.7 vs. 40.5±5.6], but the differences were not statistically significant (both P > 0.05). One hour after extubation, the pH value, PaO2 and PaCO2 in positive pressure extubation group were slightly lower than those in negative pressure extubation group, but the differences were not statistically significant. Within 30 minutes after extubation, the incedences of tachypnea, tachycardia, elevated blood pressure and oxygen desaturationin in positive pressure extubation group were significantly lower than those in negative pressure extubation group [tachypnea: 9.4% (5/53) vs. 28.8% (15/52), tachycardia: 15.1% (8/53) vs. 32.7% (17/52), elevated blood pressure: 11.3% (6/53) vs. 30.8% (16/52), oxygen desaturation: 7.5% (4/53) vs. 34.6% (18/52), all P < 0.05], the incidence of severe cough in positive pressure extubation group was significantly lower than that in negative pressure extubation group [9.4% (5/53) vs. 30.8% (16/52), P < 0.05], but there was no significant difference in the incidence of complications of airway hyperresponsiveness between the two groups [1.9% (1/53) vs. 5.8% (3/52), P > 0.05]. No pneumonia occurred in both groups within 48 hours after extubation. CONCLUSIONS The positive pressure extubation method can ensure full oxygenation of patients undergoing mechanical ventilation in ICU, avoid hypoxia, and reduce the occurrence of hypoxia and severe cough, which is more conducive to the stability of vital signs.
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Affiliation(s)
- Shangxiang Liu
- Intensive Care Unit, Nanjing Jiangbei Hospital Affiliated to Nantong University, Nanjing 210048, Jiangsu, China. Corresponding author: Ye Zhenglong,
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Abstract
BACKGROUND The World Health Organization (WHO) recommends oral amoxicillin for patients who have pneumonia with tachypnea, yet trial data indicate that not using amoxicillin to treat this condition may be noninferior to using amoxicillin. METHODS We conducted a double-blind, randomized, placebo-controlled noninferiority trial involving children at primary health care centers in low-income communities in Karachi, Pakistan. Children who were 2 to 59 months of age and who met WHO criteria for nonsevere pneumonia with tachypnea were randomly assigned to a 3-day course of a suspension of amoxicillin (the active control) of 50 mg per milliliter or matched volume of placebo (the test regimen), according to WHO weight bands (500 mg every 12 hours for a weight of 4 to <10 kg, 1000 mg every 12 hours for a weight of 10 to <14 kg, or 1500 mg every 12 hours for a weight of 14 to <20 kg). The primary outcome was treatment failure during the 3-day course of amoxicillin or placebo. The prespecified noninferiority margin was 1.75 percentage points. RESULTS From November 9, 2014, through November 30, 2017, a total of 4002 children underwent randomization (1999 in the placebo group and 2003 in the amoxicillin group). In the per-protocol analysis, the incidence of treatment failure was 4.9% among placebo recipients (95 of 1927 children) and 2.6% among amoxicillin recipients (51 of 1929 children) (between-group difference, 2.3 percentage points; 95% confidence interval [CI], 0.9 to 3.7). Results were similar in the intention-to-treat analysis. The presence of fever and wheeze predicted treatment failure. The number needed to treat to prevent one treatment failure was 44 (95% CI, 31 to 80). One patient (<0.1%) in each group died. Relapse occurred in 40 children (2.2%) in the placebo group and in 58 children (3.1%) in the amoxicillin group. CONCLUSIONS Among children younger than 5 years of age with nonsevere pneumonia, the frequency of treatment failure was higher in the placebo group than in the amoxicillin group, a difference that did not meet the noninferiority margin for placebo. (Funded by the Joint Global Health Trials Scheme [of the Department for International Development, Medical Research Council, and Wellcome] and others; RETAPP ClinicalTrials.gov number, NCT02372461.).
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Affiliation(s)
- Fyezah Jehan
- Epidemiology and Biostatistics, Associate Professor
Pediatrics and Pediatric Infectious Diseases, Aga Khan University, Pakistan,
- Corresponding author: Dr. Fyezah
Jehan, Department of Pediatrics and Child Health, Aga Khan University, Pakistan,
Stadium Road, PO Box 3500, Karachi 74800, Pakistan. Tel: +92-21-4930051, ext. 4981. Fax:
+92-21-493-4294. E-mail:
| | - Muhammad Imran Nisar
- Epidemiology and Biostatistics, Assistant Professor, Aga
Khan University, Pakistan,
| | - Salima Kerai
- Epidemiology and Biostatistics, Research Specialist, Aga
Khan University, Pakistan,
| | | | - Nick Brown
- Consultant Paediatrician, International Centre for
Maternal and Child Health, Uppsala University, Uppsala, Sweden. Department of Paediatrics
and Child Health, Aga Khan University, Karachi, Pakistan. Department of Child Health,
Länssjukhuset Gävleborg, Sweden,
| | - Najeeb Rahman
- Research Coordinator, Aga Khan University, Pakistan,
| | | | - Yasir Shafiq
- Health Policy Management, Aga Khan University, Pakistan,
| | - Anita K M Zaidi
- SM Microbiology and Infectious Diseases, Professor,
Division of Women and Child Health, Aga Khan University, Pakistan,
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Ginsburg AS, Mvalo T, Nkwopara E, McCollum ED, Phiri M, Schmicker R, Hwang J, Ndamala CB, Phiri A, Lufesi N, Izadnegahdar R, May S. Amoxicillin for 3 or 5 Days for Chest-Indrawing Pneumonia in Malawian Children. N Engl J Med 2020; 383:13-23. [PMID: 32609979 PMCID: PMC7233470 DOI: 10.1056/nejmoa1912400] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Evidence regarding the appropriate duration of treatment with antibiotic agents in children with pneumonia in low-resource settings in Africa is lacking. METHODS We conducted a double-blind, randomized, controlled, noninferiority trial in Lilongwe, Malawi, to determine whether treatment with amoxicillin for 3 days is less effective than treatment for 5 days in children with chest-indrawing pneumonia (cough lasting <14 days or difficulty breathing, along with visible indrawing of the chest wall with or without fast breathing for age). Children not infected with human immunodeficiency virus (HIV) who were 2 to 59 months of age and had chest-indrawing pneumonia were randomly assigned to receive amoxicillin twice daily for either 3 days or 5 days. Children were followed for 14 days. The primary outcome was treatment failure by day 6; noninferiority of the 3-day regimen to the 5-day regimen would be shown if the percentage of children with treatment failure in the 3-day group was no more than 1.5 times that in the 5-day group. Prespecified secondary analyses included assessment of treatment failure or relapse by day 14. RESULTS From March 29, 2016, to April 1, 2019, a total of 3000 children underwent randomization: 1497 children were assigned to the 3-day group, and 1503 to the 5-day group. Among children with day 6 data available, treatment failure had occurred in 5.9% in the 3-day group (85 of 1442 children) and in 5.2% (75 of 1456) in the 5-day group (adjusted difference, 0.7 percentage points; 95% confidence interval [CI], -0.9 to 2.4) - a result that satisfied the criterion for noninferiority of the 3-day regimen to the 5-day regimen. Among children with day 14 data available, 176 of 1411 children (12.5%) in the 3-day group and 154 of 1429 (10.8%) in the 5-day group had had treatment failure by day 6 or relapse by day 14 (between-group difference, 1.7 percentage points; 95% CI, -0.7 to 4.1). The percentage of children with serious adverse events was similar in the two groups (9.8% in the 3-day group and 8.8% in the 5-day group). CONCLUSIONS In HIV-uninfected Malawian children, treatment with amoxicillin for chest-indrawing pneumonia for 3 days was noninferior to treatment for 5 days. (Funded by the Bill and Melinda Gates Foundation; ClinicalTrials.gov number, NCT02678195.).
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Affiliation(s)
| | - Tisungane Mvalo
- University of North Carolina Project, Lilongwe Medical
Relief Fund Trust, Tidziwe Centre, Private Bag A-104, Lilongwe, Malawi
| | | | - Eric D. McCollum
- Eudowood Division of Pediatric Respiratory Sciences,
Department of Pediatrics, Johns Hopkins School of Medicine and Department of International
Health, Johns Hopkins Bloomberg School of Public Health, 200 N Wolfe Street, Baltimore,
MD, 21287, USA
| | - Melda Phiri
- University of North Carolina Project, Lilongwe Medical
Relief Fund Trust, Tidziwe Centre, Private Bag A-104, Lilongwe, Malawi
| | - Robert Schmicker
- Department of Biostatistics, University of Washington
Clinical Trial Center, Building 29, Suite 250, 6200 NE 74 Street, Seattle,
WA, 98115, USA
| | - Jun Hwang
- Department of Biostatistics, University of Washington
Clinical Trial Center, Building 29, Suite 250, 6200 NE 74 Street, Seattle,
WA, 98115, USA
| | - Chifundo B. Ndamala
- University of North Carolina Project, Lilongwe Medical
Relief Fund Trust, Tidziwe Centre, Private Bag A-104, Lilongwe, Malawi
| | - Ajib Phiri
- Department of Pediatrics and Child Health, College of
Medicine, University of Malawi, Private Bag 360, Chichiri, Blantyre, Malawi
| | - Norman Lufesi
- Acute Respiratory Infection and Emergency Triage
Assessment and Treatment, Malawi Ministry of Health, Private Bag 65, Lilongwe,
Malawi
| | - Rasa Izadnegahdar
- Bill & Melinda Gates Foundation, 500 Fifth Avenue
N, Seattle, WA, 98109, USA
| | - Susanne May
- Department of Biostatistics, University of Washington
Clinical Trial Center, Building 29, Suite 250, 6200 NE 74 Street, Seattle,
WA, 98115, USA
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Abstract
We prospectively evaluated afebrile patients admitted to an emergency department (ED), with suspected infection and only tachycardia or tachypnea.The white blood cell count (WBC) was obtained, and patients were considered septic if leukocyte count was >12,000 μL-1 or <4000 μL-1 or with >10% of band forms. Clinical data were collected to examine whether sepsis could be predicted.Seventy patients were included and 37 (52.86%) met sepsis criteria. Self-measured fever showed an odds ratio (OR) of 5.936 (CI95% 1.450-24.295; P = 0.0133) and increased pulse pressure (PP) showed an OR of 1.405 (CI95% 1.004-1.964; P = 0.0471) on multivariate analysis. When vital signs were included in multivariate analysis, the heart rate showed an OR of 2.112 (CI95% 1.400-3.188; P = 0.0004). Self-measured fever and mean arterial pressure <70 mm Hg had high positive likelihood ratios (3.86 and 2.08, respectively). The nomogram for self-measured fever showed an increase of sepsis chance from 53% (pretest) to approximately 80% (post-test).The recognition of self-measured fever, increased PP, and the intensity of heart rate response may improve sepsis recognition in afebrile patients with tachycardia or tachypnea. These results are important for medical assessment of sepsis in remote areas, crowded and low-resourced EDs, and low-income countries, where WBC may not be readily available.
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Seo MH, Choa M, You JS, Lee HS, Hong JH, Park YS, Chung SP, Park I. Hypoalbuminemia, Low Base Excess Values, and Tachypnea Predict 28-Day Mortality in Severe Sepsis and Septic Shock Patients in the Emergency Department. Yonsei Med J 2016; 57:1361-9. [PMID: 27593863 PMCID: PMC5011267 DOI: 10.3349/ymj.2016.57.6.1361] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 04/29/2016] [Accepted: 05/03/2016] [Indexed: 01/20/2023] Open
Abstract
PURPOSE The objective of this study was to develop a new nomogram that can predict 28-day mortality in severe sepsis and/or septic shock patients using a combination of several biomarkers that are inexpensive and readily available in most emergency departments, with and without scoring systems. MATERIALS AND METHODS We enrolled 561 patients who were admitted to an emergency department (ED) and received early goal-directed therapy for severe sepsis or septic shock. We collected demographic data, initial vital signs, and laboratory data sampled at the time of ED admission. Patients were randomly assigned to a training set or validation set. For the training set, we generated models using independent variables associated with 28-day mortality by multivariate analysis, and developed a new nomogram for the prediction of 28-day mortality. Thereafter, the diagnostic accuracy of the nomogram was tested using the validation set. RESULTS The prediction model that included albumin, base excess, and respiratory rate demonstrated the largest area under the receiver operating characteristic curve (AUC) value of 0.8173 [95% confidence interval (CI), 0.7605-0.8741]. The logistic analysis revealed that a conventional scoring system was not associated with 28-day mortality. In the validation set, the discrimination of a newly developed nomogram was also good, with an AUC value of 0.7537 (95% CI, 0.6563-0.8512). CONCLUSION Our new nomogram is valuable in predicting the 28-day mortality of patients with severe sepsis and/or septic shock in the emergency department. Moreover, our readily available nomogram is superior to conventional scoring systems in predicting mortality.
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Affiliation(s)
- Min Ho Seo
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Minhong Choa
- Institute for Disaster Relief and Medical Safety Net, Yonsei University College of Medicine, Seoul, Korea
| | - Je Sung You
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Sun Lee
- Department of Biostatistics, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Hwa Hong
- Department of Biostatistics, Yonsei University College of Medicine, Seoul, Korea
| | - Yoo Seok Park
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea.
| | - Sung Phil Chung
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Incheol Park
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
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Kaya S, Yilmaz G, Arslan M, Oztuna F, Ozlu T, Koksal I. Predictive factors for fatality in pandemic influenza A (H1N1) virus infected patients. Saudi Med J 2012; 33:146-151. [PMID: 22327754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
OBJECTIVE To determine predictive fatality criteria based on clinical and laboratory findings on admission to hospital in patients diagnosed with pandemic influenza A (H1N1) virus infection. METHODS The study was conducted at the School of Medicine, Karadeniz Technical University, Trabzon, Turkey. Demographic, clinical, and laboratory data for hospitalized cases with a diagnosis of A (H1N1) virus infection between October 2009 and May 2010 were analyzed retrospectively. Patients were divided into 2 groups: fatal (group I) and non-fatal (group II). The 2 group's demographic, clinical, and laboratory data were compared on admission. RESULTS Ten (20%) of the 50 patients included in the study died. The average age of group I was significantly higher than that of the group II. No significant difference was observed between the groups in terms of underlying chronic diseases and pregnancy. Fever, phlegm, shortness of breath, tachypnea, cyanosis were observed at significantly higher levels in group I compared to group II. Serum hemoglobin, glucose, albumin levels, arterial oxygen saturation were significantly lower in group I compared to group II; aspartate transaminase, alanine aminotransferase, C-reactive protein, procalcitonin, blood urea nitrogen levels, time between onset of symptoms and commencement of antiviral treatment were all significantly higher in group I. CONCLUSION This study shows that in addition to demographic characteristics and clinical findings, prognosis of patients with A (H1N1) virus infection can be determined beforehand with various laboratory tests. But these parameters, which can guide the clinician in the prior identification of potentially fatal A (H1N1) cases will contribute to the provision of supporting treatment and, when necessary, intensive care services for such patients.
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Affiliation(s)
- Selcuk Kaya
- Department of Infectious Diseases and Clinical Microbiology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey.
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KAPPEY F, THIELE P, ALBERS C. [THE EFFECT OF HEAT TACHYPNEA IN DOGS ON THE ALVEOLARARTERIAL O2 TENSION DIFFERENCE AAD)]. Pflugers Arch Gesamte Physiol Menschen Tiere 1963; 278:250-61. [PMID: 14097827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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THIELE P, ALBERS C. [THE LOSS OF WATER THROUGH THE RESPIRATORY TRACT AND THE EFFECT OF HEAT PANTING IN THE NONANESTHETIZED DOG]. Pflugers Arch Gesamte Physiol Menschen Tiere 1963; 278:316-24. [PMID: 14097831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
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Abstract
Apparently healthy, unanesthetized dogs weighing 12.3 ± 1.8 kg were caused to pant by the warming effect of incandescent lamps. Panting frequency was recorded and found to be 5.33 ± 0.7 cycles/sec. The natural frequency of the respiratory system of each of the animals was then determined, the mean being 5.28 ± 0.3 cycles/sec. The increased effectiveness of panting at the resonant frequency of the respiratory system is discussed in terms of respiratory impedance and maximum volume flow with least effort. The impracticality of panting at other frequencies is shown by calculation. Submitted on August 2, 1961
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KAPPEY F, ALBERS C, SCHMIDT R. [The ventilatory CO2 reaction in dogs during heat tachypnea]. Pflugers Arch Gesamte Physiol Menschen Tiere 1962; 275:312-26. [PMID: 14453804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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HAHN P. [Development of thermoregulating panting in puppies]. Fiziol Zh SSSR Im I M Sechenova 1958; 44:23-8. [PMID: 13512375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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USINGER W, ALBERS C. [Regulation of respiration in heat panting]. Naunyn Schmiedebergs Arch Exp Pathol Pharmakol 1956; 228:124-5. [PMID: 13334573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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RAVIKOVICH OI. [Panting produced by high temperatures in dogs in various stages of development]. Biull Eksp Biol Med 1954; 37:22-5. [PMID: 13199031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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DUNDEE JW. Tachypnoea during the administration of trichlorethylene. Br J Anaesth 1953; 25:3-23. [PMID: 13018983 DOI: 10.1093/bja/25.1.3-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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GLASER, ANSPACH, POTTS. Cough; rapid breathing [empyema]. Case Rep Child Meml Hosp Chic 1947; 6:885-90. [PMID: 20264130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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