1
|
Zhang W, He Y, Gu Q, Zhang Y, Zha Q, Feng Q, Zhang S, He Y, Kang L, Xue M, Jing F, Li J, Mao Y, Zhu W. Optimal timing for awake prone positioning in Covid-19 patients: Insights from an observational study from two centers. Int J Nurs Stud 2024; 152:104707. [PMID: 38368846 DOI: 10.1016/j.ijnurstu.2024.104707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 01/15/2024] [Accepted: 01/28/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND The widespread application and interest in awake prone positioning stems from its ease and availability and its ability to enhance patients' oxygenation. Nevertheless, due to the absence of consensus over the regimen of awake prone positioning, the efficacy of awake prone positioning remains uncertain. OBJECTIVE To explore the optimal regimen for awake prone positioning, including the timing of initiation, ideal daily duration, and strategies for improving patient comfort and encouraging adherence. DESIGN Retrospective observational study. SETTING(S) Two university-affiliated hospitals in Shanghai. PARTICIPANTS Between December 2022 and February 2023, a total of 475 patients with COVID-19-related pneumonia who received awake prone positioning were observed. METHODS The data were collected from the hospital's electronic medical record system. The differentiation efficiency of peripheral blood oxygen saturation [SpO2]:fractional oxygen concentration in inspired air [FiO2] ratio at first awake prone positioning for different outcomes was tested by the area under the receiver operating characteristic curve. The Cox proportional hazard regression model was used to analyze the relationship between time to occurrence of 28-day outcomes and collected variables. Kaplan-Meier curves were plotted with the percentage of 28-day outcomes according to the SpO2:FiO2 ratio at first awake prone positioning after controlling covariates through Cox regression. RESULTS The best efficiency in predicting patient outcomes was achieved when the cutoff SpO2:FiO2 ratio at first awake prone positioning was 200. Patients with a reduced SpO2:FiO2 ratio (≤200) experienced more adverse respiratory outcomes (RR = 5.42, 95%CI [3.35, 8.76], p < 0·001) and higher mortality (RR = 16.64, 95%CI [5.53, 50.13], p < 0.001). Patients with a SpO2:FiO2 ratio of ≥200 at first awake prone positioning, longer duration between first awake prone positioning and admission, more awake prone positioning days, and better awake prone positioning completion were significantly protected from 28-day adverse respiratory outcomes and mortality. CONCLUSIONS Initiating awake prone positioning with a SpO2:FiO2 ratio exceeding 200, increasing the number of awake prone positioning days, prolonging the time between first awake prone positioning and admission, and achieving better completion of awake prone positioning were found to be significantly associated with reduced adverse respiratory outcomes and mortality. REGISTRATION ClinicalTrials.gov; No.: NCT05795751; URL: www. CLINICALTRIALS gov.
Collapse
Affiliation(s)
- Weiqing Zhang
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Jiao Tong University School of Nursing, Shanghai, China
| | - Yan He
- Department of Respiratory and Critical Care Medicine, Shanghai Pulmonary Hospital, Shanghai, China
| | - Qiuying Gu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yin Zhang
- Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qinghua Zha
- Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Feng
- Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shiyu Zhang
- Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang He
- Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lei Kang
- Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Min Xue
- Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Jing
- Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinling Li
- Department of Pulmonary Circulation, Shanghai Pulmonary Hospital, Shanghai, China
| | - Yanjun Mao
- Department of Nursing, Shanghai Pulmonary Hospital, Shanghai, China.
| | - Weiyi Zhu
- Department of Nursing, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| |
Collapse
|
2
|
Rosén J, Frykholm P, Jonsson Fagerlund M, Pellegrini M, Campoccia Jalde F, von Oelreich E, Fors D. Lung impedance changes during awake prone positioning in COVID-19. A non-randomized cross-over study. PLoS One 2024; 19:e0299199. [PMID: 38381730 PMCID: PMC10880988 DOI: 10.1371/journal.pone.0299199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 02/01/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND The effects of awake prone positioning (APP) on respiratory mechanics in patients with COVID-19 are not well characterized. The aim of this study was to investigate changes of global and regional lung volumes during APP compared with the supine position using electrical lung impedance tomography (EIT) in patients with hypoxemic respiratory failure due to COVID-19. MATERIALS AND METHODS This exploratory non-randomized cross-over study was conducted at two university hospitals in Sweden between January and May 2021. Patients admitted to the intensive care unit with confirmed COVID-19, an arterial cannula in place, a PaO2/FiO2 ratio <26.6 kPa (<200 mmHg) and high-flow nasal oxygen or non-invasive ventilation were eligible for inclusion. EIT-data were recorded at supine baseline, at 30 and 60 minutes after APP-initiation, and 30 minutes after supine repositioning. The primary outcomes were changes in global and regional tidal impedance variation (TIV), center of ventilation (CoV), global and regional delta end-expiratory lung-impedance (dEELI) and global inhomogeneity (GI) index at the end of APP compared with supine baseline. Data were reported as median (IQR). RESULTS All patients (n = 10) were male and age was 64 (47-73) years. There were no changes in global or regional TIV, CoV or GI-index during the intervention. dEELI increased from supine reference value 0 to 1.51 (0.32-3.62) 60 minutes after APP (median difference 1.51 (95% CI 0.19-5.16), p = 0.04) and returned to near baseline values after supine repositioning. Seven patients (70%) showed an increase >0.20 in dEELI during APP. The other EIT-variables did not change during APP compared with baseline. CONCLUSION Awake prone positioning was associated with a transient lung recruiting effect without changes in ventilation distribution measured with EIT in patients with hypoxemic respiratory failure due to COVID-19.
Collapse
Affiliation(s)
- Jacob Rosén
- Department of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, Uppsala, Sweden
| | - Peter Frykholm
- Department of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, Uppsala, Sweden
| | - Malin Jonsson Fagerlund
- Perioperative Medicine and Intensive Care, Karolinska University Hospital, Solna, Sweden
- Section of Anesthesiology and Intensive Care Medicine, Department of Physiology and Pharmacology, Karolinska Institutet, Solna, Sweden
| | - Mariangela Pellegrini
- Department of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, Uppsala, Sweden
| | - Francesca Campoccia Jalde
- Perioperative Medicine and Intensive Care, Karolinska University Hospital, Solna, Sweden
- Section of Thoracic Anesthesiology and Intensive Care, Department of Molecular Medicine and Surgery, Karolinska Institutet, Solna, Sweden
| | - Erik von Oelreich
- Perioperative Medicine and Intensive Care, Karolinska University Hospital, Solna, Sweden
- Section of Anesthesiology and Intensive Care Medicine, Department of Physiology and Pharmacology, Karolinska Institutet, Solna, Sweden
| | - Diddi Fors
- Department of Surgical Sciences, Anaesthesiology and Intensive Care Medicine, Uppsala University, Uppsala, Sweden
| |
Collapse
|
3
|
Tekantapeh ST, Nader ND, Ghojazadeh M, Fereidouni F, Soleimanpour H. Prone positioning effect on tracheal intubation rate, mortality and oxygenation parameters in awake non-intubated severe COVID-19-induced respiratory failure: a review of reviews. Eur J Med Res 2024; 29:63. [PMID: 38245784 PMCID: PMC10799467 DOI: 10.1186/s40001-024-01661-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 01/11/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Prone positioning (PP) is a low-cost method with minimal risk to the patient that improves the oxygenation of patients with acute hypoxic respiratory failure (AHRF) due to COVID-19 pneumonia, thereby reducing their need for tracheal intubation (TI) and transferring to the intensive care unit (ICU). We aimed to overview the results of all previous systematic reviews and meta-analyses to examine the net effect of PP on oxygenation, the rate of TI and mortality in COVID-19 patients. METHODS We searched PubMed, Scopus, Web of Science, Google Scholar, and Cochrane Library databases from December 2019 through 2022 without publication language restriction for systematic reviews and meta-analysis studies on PP vs. supine position (SP) in conscious patients with hypoxic respiratory failure COVID-19. After study selection, data were extracted from published meta-analyses and pooled by comprehensive meta-analysis (CMA) software version 2.2.064 to achieve effect sizes. They were analyzed for TI and mortality rates dichotomous variables, and the results were shown as pooled odds ratios (OR) with a 95% confidence interval (CI). Continuous variables such as oxygenation indices (PaO2/FiO2 and SpO2) were also analyzed, and the data were shown as mean differences (MD) with lower and upper CI. The level of statistical significance was set at p ≤ 0.05. RESULTS Twelve systematic reviews and meta-analyses with 19,651 patients and six systematic reviews with 2,911 patients were included in this Review of Reviews (total: 22,562). PP treatment significantly reduced the rate of TI (OR = 0.639, %95 CI (0.492, 0.829); P-value = 0.001) and decreased mortality (OR = 0.363, %95 CI (0.240, 0.549), P-value < 0.001). There was no difference in PaO2/FiO2 (MD = 3.591[- 40.881, 48.062]; P-value = 0.874) and SpO2 percent (MD = 1.641[- 4.441, 7.723]; P-value = 0.597). CONCLUSION Prone positioning can be recommended in conscious ICU patients with COVID-19 pneumonia to reduce mortality and intubation. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration number: CRD42022326951. Registered 25 April 2022.
Collapse
Affiliation(s)
- Sepideh Tahsini Tekantapeh
- Student Research Committee, Department of Rheumatology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nader D Nader
- Departments of Anesthesiology and Surgery, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Morteza Ghojazadeh
- Research Center for Evidence-Based Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Fereidouni
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hassan Soleimanpour
- Integrated Aging Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| |
Collapse
|
4
|
萨 日, 王 爱, 高 有, 李 晓, 呼格吉乐图. [Efficacy of bronchoalveolar lavage combined with prone positioning in children with Mycoplasma pneumoniae pneumonia and atelectasis: a prospective randomized controlled study]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2024; 26:31-36. [PMID: 38269456 PMCID: PMC10817740 DOI: 10.7499/j.issn.1008-8830.2308013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 12/01/2023] [Indexed: 01/26/2024]
Abstract
OBJECTIVES To study the efficacy of bronchoalveolar lavage (BAL) combined with prone positioning in children with Mycoplasma pneumoniae pneumonia (MPP) and atelectasis and its effect on pulmonary function. METHODS A prospective study was conducted on 94 children with MPP and atelectasis who were hospitalized in Ordos Central Hospital of Inner Mongolia from November 2020 to May 2023. The children were randomly divided into a treatment group and a control group, with 47 children in each group. The children in the treatment group were given conventional treatment, BAL, and prone positioning, and those in the control group were given conventional treatment and BAL. The two groups were compared in terms of fever, pulmonary signs, length of hospital stay, lung recruitment, and improvement in pulmonary function. RESULTS Compared with the control group, the treatment group had significantly shorter time to improvement in pulmonary signs and length of hospital stay and a significantly higher rate of lung recruitment on day 7 of hospitalization, on the day of discharge, and at 1 week after discharge (P<0.05). Compared with the control group, the treatment group had significantly higher levels of forced vital capacity (FVC) as a percentage of the predicted value, forced expiratory volume (FEV) in 1 second as a percentage of the predicted value, ratio of FEV in 1 second to FVC, forced expiratory flow at 50% of FVC as a percentage of the predicted value, forced expiratory flow at 75% of FVC as a percentage of the predicted value, and maximal mid-expiratory flow as a percentage of the predicted value on the day of discharge and at 1 week after discharge (P<0.05). There was no significant difference in the time for body temperature to return to normal between the two groups (P>0.05). CONCLUSIONS In the treatment of children with MPP and atelectasis, BAL combined with prone positioning can help to shorten the time to improvement in pulmonary signs and the length of hospital stay and promote lung recruitment and improvement in pulmonary function.
Collapse
Affiliation(s)
| | | | - 有汉 高
- 内蒙古医科大学研究生学院, 内蒙古呼和浩特010059
| | | | - 呼格吉乐图
- 鄂尔多斯市中心医院康复科,内蒙古鄂尔多斯017000
| |
Collapse
|
5
|
Graziani M, Rigutini AG, Bartolini D, Traballi L, Luzi L, Regina R, Bossi F, Caponi C, Becattini C. Awake prone positioning for patients with COVID-19-related respiratory failure: a systematic review and meta-analysis. Intern Emerg Med 2024; 19:147-158. [PMID: 37796372 PMCID: PMC10827908 DOI: 10.1007/s11739-023-03434-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 09/11/2023] [Indexed: 10/06/2023]
Abstract
The role of awake prone positioning (aPP) in patients with acute hypoxemic respiratory failure is debated. We performed a systematic review and meta-analysis to evaluate the role of aPP in acute respiratory failure related to COronaVIrus Disease-19 (COVID-19). Studies reporting on the clinical course of patients with acute respiratory failure related to COVID-19 treated or not treated by aPP were included in the systematic review and meta-analysis (ProsperoID: CRD42022333211). The primary study outcome was the composite of in-hospital death or orotracheal intubation; the individual components of the primary outcome were secondary study outcomes. The composite of in-hospital death or orotracheal intubation was available for 6 studies (1884 patients), five randomized and one prospective; a significant reduction in the risk of this outcome was observed in patients treated vs. not treated by aPP (33.5% vs. 39.8%; OR 0.73, 95% CI 0.60-0.89; I2 0%). In-hospital death was reported in 34 studies (6808 patients) and occurred in 17.4% vs. 23.5% of patients treated or not treated with aPP (random effect OR 0.60, 95% CI 0.46-0.79; I2 59%); orotracheal intubation was observed in 25.8% vs. 32.7% of patients treated or not treated with aPP (27 studies, 5369 patients; random effect OR 0.85, 95% CI 0.56-1.27; I2 84%). aPP reduces the risk for death or orotracheal intubation in patients with acute respiratory failure related to COVID-19. Further studies should be conducted to confirm the clinical benefit of aPP outside the ICU.Registration Prospero ID: CRD42022333211.
Collapse
Affiliation(s)
- Mara Graziani
- Internal, Vascular and Emergency Medicine-Stroke Unit, University of Perugia, Perugia, Italy.
| | | | - Diletta Bartolini
- Internal, Vascular and Emergency Medicine-Stroke Unit, University of Perugia, Perugia, Italy
| | - Laura Traballi
- Internal, Vascular and Emergency Medicine-Stroke Unit, University of Perugia, Perugia, Italy
| | - Lorenzo Luzi
- Internal, Vascular and Emergency Medicine-Stroke Unit, University of Perugia, Perugia, Italy
| | - Rossana Regina
- Internal, Vascular and Emergency Medicine-Stroke Unit, University of Perugia, Perugia, Italy
| | - Francesco Bossi
- Internal, Vascular and Emergency Medicine-Stroke Unit, University of Perugia, Perugia, Italy
| | - Carla Caponi
- Internal, Vascular and Emergency Medicine-Stroke Unit, University of Perugia, Perugia, Italy
| | - Cecilia Becattini
- Internal, Vascular and Emergency Medicine-Stroke Unit, University of Perugia, Perugia, Italy
| |
Collapse
|
6
|
Bai Y, He F, Yu Y, Li J. Application of prone position ventilation in ventilation strategies for patients with COVID-19. Technol Health Care 2024; 32:1835-1846. [PMID: 38007683 DOI: 10.3233/thc-230874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2023]
Abstract
BACKGROUND Patients with coronavirus disease 2019 (COVID-19) have been shown to die mainly due to disease-induced acute respiratory distress syndrome (ARDS). Prone position ventilation (PPV) is an important ventilation strategy in the management of patients with ARDS. OBJECTIVE To investigate the application of PPV in ventilation strategies for patients with COVID-19. METHODS Three hundred patients with COVID-19 admitted to the Intensive Care Unit (ICU) of Shanxi Bethune Hospital from January 2020 to June 2021 were retrospectively collected. Based on body position and conscious state, all patients were divided into three groups: intubation prone position group (n= 110), awake prone position group (n= 90) and supine position group (n= 100); The acute physiology and chronic health evaluation II (APACHE-II) scores, blood gas indicators, complications and other relevant clinical indicators were compared among the three groups. One-way ANOVA was used to compare means between multiple groups for quantitative information that conformed to a normal distribution. Repeated measures ANOVA was used for repeated measures data. Component comparisons were made using the Kruskal-Wallis H rank sum test for non-normally distributed quantitative data. RESULTS One-way repeated-measures ANOVA main effect analysis showed different effects of different treatments on PaO2 in patients with COVID-19 (F treatment = 256.231, P< 0.05), with the order of awake prone position group > intubation prone position group > supine position group. The effects of the three different treatments on P/F in patients with COVID-19 (F treatment = 311.661, P< 0.05), with the order of awake prone position group > supine position group > intubation prone position group; Moreover, the three treatments had different effects on APACHE II scores in patients with COVID-19 (F treatment = 201.342, P< 0.05), with the order of intubation prone position group > supine position group > awake prone position group. CONCLUSION Intubation prone position and awake prone position can improve lung function to some extent in patients with COVID-19, and should be applied as early as possible in patients with COVID-19-induced ARDS.
Collapse
Affiliation(s)
- Yuan Bai
- General Surgery Department, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Vascular Surgery Department, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
| | - Fang He
- General Surgery Department, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Biliary and Pancreatic Surgery, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
| | - Ying Yu
- General Surgery Department, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Vascular Surgery Department, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
| | - Jia Li
- General Surgery Department, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Vascular Surgery Department, Shanxi Bethune Hospital, Taiyuan, Shanxi, China
| |
Collapse
|
7
|
Zhao DF, Xue L, Zhou XS, Jin WY, Zhou YJ, Tong SM, Wang PF, Li YX, Piro R, Qiao HM, Yu GX, Su CY, Li BH. Importance of timing and training to implement awake prone positioning in patients with COVID-19: a single-center prospective observational study. J Thorac Dis 2023; 15:6858-6867. [PMID: 38249881 PMCID: PMC10797349 DOI: 10.21037/jtd-23-1441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/10/2023] [Indexed: 01/23/2024]
Abstract
Background Awake prone positioning (APP) is broadly implemented in patients with severe acute respiratory syndrome coronavirus 2 related disease [coronavirus disease 2019 (COVID-19)] admitted to hospital with severe respiratory distress syndrome. This prospective observational study aimed to explore the factors influencing the implementation of APP in patients with acute respiratory failure due to COVID-19. Methods Patients with COVID-19, all hospitalized with positive X-ray findings and oxygen supplementation requirement, in the Respiratory Step-Down Unit of the Peking University Third Hospital between January 6th, 2023, and January 20th, 2023, were included in this study. Data regarding basic information, activities of daily living (ADLs) scores, oxygen therapy, vital signs, and duration of APP were collected to investigate the factors influencing prone positioning. Results Among the 134 patients included, 55.2% showed an improvement in oxygen saturation 1 hour after APP. Logistic regression revealed that the pre-APP heart rate (HR) [odds ratio (OR) =1.032; P=0.046] and peripheral oxygen saturation (SpO2) (OR =0.720; P<0.001) were the associated factors of the improvement in SpO2 after treatment. Multiple linear regression revealed that the ADL scores and pre-APP respiratory rate (RR) were the associated factors of the duration of prone positioning (P<0.01). The APP technical steering group effectively improved duration of APP. Conclusions Patients with low SpO2 and increased HR before treatment showed greater improvement in oxygen saturation. Patients with lower tolerance to ADL but lower RRs were those to demonstrate a longer duration of prone positioning. This is pointing towards establishing the most favorable time window for APP during the course of COVID-19: after the ADLs have already decreased, but before significant tachypnea has appeared.
Collapse
Affiliation(s)
- Dong-Fang Zhao
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Lei Xue
- Department of Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Xiao-Shu Zhou
- Department of Nursing, Peking University Third Hospital, Beijing, China
| | - Wei-Yi Jin
- Department of Nursing, Peking University Third Hospital, Beijing, China
| | - Yu-Jie Zhou
- Department of General Surgery, Peking University Third Hospital, Beijing, China
| | - Su-Mei Tong
- Department of Cardiology, Peking University Third Hospital, Beijing, China
| | - Pan-Feng Wang
- Department of Tumor Radiotherapy, Peking University Third Hospital, Beijing, China
| | - Yu-Xuan Li
- Department of Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Roberto Piro
- Pulmonology Unit, Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Hong-Mei Qiao
- Department of Respiratory and Critical Care Medicine, Peking University Third Hospital, Beijing, China
| | - Gui-Xiang Yu
- Department of Cardiology, Peking University Third Hospital, Beijing, China
| | - Chun-Yan Su
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Bao-Hua Li
- Department of Nursing, Peking University Third Hospital, Beijing, China
| |
Collapse
|
8
|
Russo E, Corrao S, Di Gaudio F, Alberti G, Caprnda M, Kubatka P, Kruzliak P, Miceli V, Conaldi PG, Borlongan CV, La Rocca G. Facing the Challenges in the COVID-19 Pandemic Era: From Standard Treatments to the Umbilical Cord-Derived Mesenchymal Stromal Cells as a New Therapeutic Strategy. Cells 2023; 12:1664. [PMID: 37371134 DOI: 10.3390/cells12121664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/10/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19), the pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which counts more than 650 million cases and more than 6.6 million of deaths worldwide, affects the respiratory system with typical symptoms such as fever, cough, sore throat, acute respiratory distress syndrome (ARDS), and fatigue. Other nonpulmonary manifestations are related with abnormal inflammatory response, the "cytokine storm", that could lead to a multiorgan disease and to death. Evolution of effective vaccines against SARS-CoV-2 provided multiple options to prevent the infection, but the treatment of the severe forms remains difficult to manage. The cytokine storm is usually counteracted with standard medical care and anti-inflammatory drugs, but researchers moved forward their studies on new strategies based on cell therapy approaches. The perinatal tissues, such as placental membranes, amniotic fluid, and umbilical cord derivatives, are enriched in mesenchymal stromal cells (MSCs) that exert a well-known anti-inflammatory role, immune response modulation, and tissue repair. In this review, we focused on umbilical-cord-derived MSCs (UC-MSCs) used in in vitro and in vivo studies in order to evaluate the weakening of the severe symptoms, and on recent clinical trials from different databases, supporting the favorable potential of UC-MSCs as therapeutic strategy.
Collapse
Affiliation(s)
- Eleonora Russo
- Section of Histology and Embryology, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, 90127 Palermo, Italy
| | - Simona Corrao
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per per i Trapianti e Terapie Ad Alta Specializzazione), 90127 Palermo, Italy
| | | | - Giusi Alberti
- Section of Histology and Embryology, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, 90127 Palermo, Italy
| | - Martin Caprnda
- 1st Department of Internal Medicine, Faculty of Medicine, Comenius University, University Hospital Bratislava, 81499 Bratislava, Slovakia
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 03649 Martin, Slovakia
| | - Peter Kruzliak
- Research and Development Services, Pradlacka 18, 61300 Brno, Czech Republic
| | - Vitale Miceli
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per per i Trapianti e Terapie Ad Alta Specializzazione), 90127 Palermo, Italy
| | - Pier Giulio Conaldi
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per per i Trapianti e Terapie Ad Alta Specializzazione), 90127 Palermo, Italy
| | - Cesario Venturina Borlongan
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Giampiero La Rocca
- Section of Histology and Embryology, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, 90127 Palermo, Italy
| |
Collapse
|
9
|
Cao W, He N, Luo Y, Zhang Z. Awake prone positioning for non-intubated patients with COVID-19-related acute hypoxic respiratory failure: a systematic review based on eight high-quality randomized controlled trials. BMC Infect Dis 2023; 23:415. [PMID: 37337193 PMCID: PMC10278266 DOI: 10.1186/s12879-023-08393-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/09/2023] [Indexed: 06/21/2023] Open
Abstract
BACKGROUND Awake prone positioning has been widely used in non-intubated patients with acute hypoxic respiratory failure (AHRF) due to COVID-19, but the evidence is mostly from observational studies and low-quality randomized controlled trials (RCTs), with conflicting results from published studies. A systematic review of published high-quality RCTs to resolve the controversy over the efficacy and safety of awake prone positioning in non-intubated patients with AHRF due to COVID-19. METHODS Candidate studies were identified through searches of PubMed, Web of Science, Cochrane, Embase, Scopus databases from December 1, 2019 to November 1, 2022. Literature screening, data extraction and risk of bias assessment were independently conducted by two researchers. RESULTS Eight RCTs involving 2657 patients were included. Meta-analysis of fixed effects models showed that awake prone positioning did not increase mortality(OR = 0.88, 95%CI [0.72, 1.08]), length of stay in ICU (WMD = 1.14, 95%CI [-0.45, 2.72]), total length of stay (WMD = 0.11, 95%CI [-1.02, 1.23]), or incidence of adverse events (OR = 1.02, 95%CI [0.79, 1.31]) compared with usual care, but significantly reduced the intubation rate (OR = 0.72, 95%CI [0.60, 0.86]). Similar results were found in a subgroup analysis of patients who received only high flow nasal cannula (Mortality: OR = 0.86, 95%CI [0.70, 1.05]; Intubation rate: OR = 0.69, 95%CI [0.58, 0.83]). All eight RCTs had high quality of evidence, which ensured the reliability of the meta-analysis results. CONCLUSIONS Awake prone positioning is safe and feasible in non-intubated patients with AHRF caused by COVID-19, and can significantly reduce the intubation rate. More studies are needed to explore standardized implementation strategies for the awake prone positioning. TRIAL REGISTRATION CRD42023394113.
Collapse
Affiliation(s)
- Wen Cao
- Department of Critical Medicine, the Second Hospital of Lanzhou University, Lanzhou, 730030, China.
| | - Nannan He
- Department of Critical Medicine, the Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Yannian Luo
- Department of Critical Medicine, the Second Hospital of Lanzhou University, Lanzhou, 730030, China
| | - Zhiming Zhang
- Department of Oncology, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, 730030, China.
| |
Collapse
|
10
|
Jacquet-Lagrèze M, Riad Z, Portran P, Chesnel D, Schweizer R, Ferarris A, Jacquemet L, Ruste M, Fellahi JL. Hemodynamic Effects of Awake Prone Positioning With COVID-19 Acute Respiratory Failure. Respir Care 2023; 68:713-720. [PMID: 37225655 PMCID: PMC10208996 DOI: 10.4187/respcare.10597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
INTRODUCTION Awake prone positioning (PP) reduces need for intubation for patients with COVID-19 with acute respiratory failure. We investigated the hemodynamic effects of awake PP in non-ventilated subjects with COVID-19 acute respiratory failure. METHODS We conducted a single-center prospective cohort study. Adult hypoxemic subjects with COVID-19 not requiring invasive mechanical ventilation receiving at least one PP session were included. Hemodynamic assessment was done with transthoracic echocardiography before, during, and after a PP session. RESULTS Twenty-six subjects were included. We observed a significant and reversible increase in cardiac index (CI) during PP compared to supine position (SP): 3.0 ± 0.8 L/min/m2 in PP, 2.5 ± 0.6 L/min/m2 before PP (SP1), and 2.6 ± 0.5 L/min/m2 after PP (SP2, P < .001). A significant improvement in right ventricular (RV) systolic function was also evidenced during PP: The RV fractional area change was 36 ± 10% in SP1, 46 ± 10% during PP, and 35 ± 8% in SP2 (P < .001). There was no significant difference in PaO2 /FIO2 and breathing frequency. CONCLUSION CI and RV systolic function are improved by awake PP in non-ventilated subjects with COVID-19 with acute respiratory failure.
Collapse
Affiliation(s)
- Matthias Jacquet-Lagrèze
- Service d'anesthésie-réanimation, Hôpital cardiologique Louis Pradel, Hospices Civils de Lyon, Bron, France; Faculté de médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France; and CarMeN Laboratory, Inserm UMR 1060, Université Claude Bernard Lyon 1, Lyon, France.
| | - Zakaria Riad
- Service d'anesthésie-réanimation, Hôpital cardiologique Louis Pradel, Hospices Civils de Lyon, Bron, France; and Faculté de médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Philippe Portran
- Service d'anesthésie-réanimation, Hôpital cardiologique Louis Pradel, Hospices Civils de Lyon, Bron, France
| | - Delphine Chesnel
- Service d'anesthésie-réanimation, Hôpital cardiologique Louis Pradel, Hospices Civils de Lyon, Bron, France
| | - Rémi Schweizer
- Service d'anesthésie-réanimation, Hôpital cardiologique Louis Pradel, Hospices Civils de Lyon, Bron, France
| | - Arnaud Ferarris
- Service d'anesthésie-réanimation, Hôpital cardiologique Louis Pradel, Hospices Civils de Lyon, Bron, France; and Faculté de médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Louis Jacquemet
- Service d'anesthésie-réanimation, Hôpital cardiologique Louis Pradel, Hospices Civils de Lyon, Bron, France
| | - Martin Ruste
- Service d'anesthésie-réanimation, Hôpital cardiologique Louis Pradel, Hospices Civils de Lyon, Bron, France; and Faculté de médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France
| | - Jean-Luc Fellahi
- Service d'anesthésie-réanimation, Hôpital cardiologique Louis Pradel, Hospices Civils de Lyon, Bron, France; Faculté de médecine Lyon Est, Université Claude Bernard Lyon 1, Lyon, France; and CarMeN Laboratory, Inserm UMR 1060, Université Claude Bernard Lyon 1, Lyon, France
| |
Collapse
|
11
|
Viegas P, Ageno E, Corsi G, Tagariello F, Razakamanantsoa L, Vilde R, Ribeiro C, Heunks L, Patout M, Fisser C. Highlights from the Respiratory Failure and Mechanical Ventilation 2022 Conference. ERJ Open Res 2023; 9:00467-2022. [PMID: 36949961 PMCID: PMC10026011 DOI: 10.1183/23120541.00467-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/10/2022] [Indexed: 11/25/2022] Open
Abstract
The Respiratory Intensive Care Assembly of the European Respiratory Society gathered in Berlin to organise the second Respiratory Failure and Mechanical Ventilation Conference in June 2022. The conference covered several key points of acute and chronic respiratory failure in adults. During the 3-day conference, ventilatory strategies, patient selection, diagnostic approaches, treatment and health-related quality of life topics were addressed by a panel of international experts. Lectures delivered during the event have been summarised by Early Career Members of the Assembly and take-home messages highlighted.
Collapse
Affiliation(s)
- Pedro Viegas
- Pulmonology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Elisa Ageno
- Respiratory and Critical Care Unit, IRCCS Azienda Ospedaliero Universitaria di Bologna, University Hospital Sant'Orsola-Malpighi, Bologna, Italy
- Department of Clinical, Integrated and Experimental Medicine (DIMES), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Gabriele Corsi
- Respiratory and Critical Care Unit, IRCCS Azienda Ospedaliero Universitaria di Bologna, University Hospital Sant'Orsola-Malpighi, Bologna, Italy
- Department of Clinical, Integrated and Experimental Medicine (DIMES), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Federico Tagariello
- Respiratory and Critical Care Unit, IRCCS Azienda Ospedaliero Universitaria di Bologna, University Hospital Sant'Orsola-Malpighi, Bologna, Italy
- Department of Clinical, Integrated and Experimental Medicine (DIMES), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Léa Razakamanantsoa
- Unité Ambulatoire d'Appareillage Respiratoire de Domicile (UAARD), Service de Pneumologie (Département R3S), AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Paris, France
| | - Rudolfs Vilde
- Centre of Pulmonology and Thoracic Surgery, Pauls Stradiņš Clinical University Hospital, Riga, Latvia
- Riga Stradiņš University, Riga, Latvia
| | - Carla Ribeiro
- Pulmonology Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Leo Heunks
- Department of Intensive Care, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Maxime Patout
- Service des Pathologies du Sommeil (Département R3S), AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - Christoph Fisser
- Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany
- Corresponding author: Christoph Fisser ()
| |
Collapse
|
12
|
Wang J, Chen D, Deng P, Zhang C, Zhan X, Lv H, Xie H, Chen D, Wang R. Efficacy and safety of awake prone positioning in the treatment of non-intubated spontaneously breathing patients with COVID-19-related acute respiratory failure: A systematic review and meta-analysis. JOURNAL OF INTENSIVE MEDICINE 2023. [PMCID: PMC10063156 DOI: 10.1016/j.jointm.2023.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
|
13
|
Onji M, Kakizoe S, Nakai A, Shimizu K, Masui Y, Naito K, Mikumo H. Short-Term Outcomes of the First-Session Prone Position in Patients With Severe Coronavirus Disease 2019: A Retrospective Chart Review. Cureus 2023; 15:e35437. [PMID: 36994294 PMCID: PMC10041127 DOI: 10.7759/cureus.35437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2023] [Indexed: 02/27/2023] Open
Abstract
Introduction Prone positioning during ventilation is recommended for patients with severe coronavirus disease 2019 (COVID-19). However, the efficacy of first-session prone positioning in improving short-term outcomes remains unclear. Therefore, we aimed to investigate the impact of the rate of change in partial pressure of oxygen/fraction of inspired oxygen (P/F) ratio before and after initial prone positioning on activities of daily living (ADL) and outcomes at discharge. Methods In this retrospective chart review, 22 patients with severe COVID-19 who required ventilator management between April and September 2021 were analyzed. Patients with an improvement in the P/F ratio (after initial prone positioning, compared to that before the session) by > 16mHg and < 16mmHg were defined as responders and non-responders, respectively. Results Compared with non-responders, responders had a significantly shorter ventilator duration, a higher Barthel Index at discharge, and a higher proportion of discharged patients. There was a significant between-group difference in chronic respiratory comorbidities, with one case (7.7%) among responders and six cases (66.7%) among non-responders. Conclusions This study is the first of its kind to investigate short-term outcomes in patients with COVID-19 requiring ventilator management after initial prone positioning. After initial prone positioning, responders had higher P/F ratios as well as improved ADLs and outcomes at discharge.
Collapse
|
14
|
Cheema HA, Siddiqui A, Ochani S, Adnan A, Sukaina M, Haider R, Shahid A, Rehman MEU, Awan RU, Singh H, Duric N, Fazzini B, Torres A, Szakmany T. Awake Prone Positioning for Non-Intubated COVID-19 Patients with Acute Respiratory Failure: A Meta-Analysis of Randomised Controlled Trials. J Clin Med 2023; 12:jcm12030926. [PMID: 36769574 PMCID: PMC9917863 DOI: 10.3390/jcm12030926] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/24/2022] [Accepted: 01/22/2023] [Indexed: 01/26/2023] Open
Abstract
INTRODUCTION Awake prone positioning (APP) has been widely applied in non-intubated patients with COVID-19-related acute hypoxemic respiratory failure. However, the results from randomised controlled trials (RCTs) are inconsistent. We performed a meta-analysis to assess the efficacy and safety of APP and to identify the subpopulations that may benefit the most from it. METHODS We searched five electronic databases from inception to August 2022 (PROSPERO registration: CRD42022342426). We included only RCTs comparing APP with supine positioning or standard of care with no prone positioning. Our primary outcomes were the risk of intubation and all-cause mortality. Secondary outcomes included the need for escalating respiratory support, length of ICU and hospital stay, ventilation-free days, and adverse events. RESULTS We included 11 RCTs and showed that APP reduced the risk of requiring intubation in the overall population (RR 0.84, 95% CI: 0.74-0.95; moderate certainty). Following the subgroup analyses, a greater benefit was observed in two patient cohorts: those receiving a higher level of respiratory support (compared with those receiving conventional oxygen therapy) and those in intensive care unit (ICU) settings (compared to patients in non-ICU settings). APP did not decrease the risk of mortality (RR 0.93, 95% CI: 0.77-1.11; moderate certainty) and did not increase the risk of adverse events. CONCLUSIONS In patients with COVID-19-related acute hypoxemic respiratory failure, APP likely reduced the risk of requiring intubation, but failed to demonstrate a reduction in overall mortality risk. The benefits of APP are most noticeable in those requiring a higher level of respiratory support in an ICU environment.
Collapse
Affiliation(s)
- Huzaifa Ahmad Cheema
- Intensive Care Unit, Department of Chest Medicine, King Edward Medical University, Lahore 54000, Pakistan
- Correspondence: (H.A.C.); (T.S.); Tel.: +92-332-448-7886 (H.A.C.); +44-292-074-4852 (T.S.)
| | - Amna Siddiqui
- Department of Medicine, Karachi Medical and Dental College, Karachi 74700, Pakistan
| | - Sidhant Ochani
- Department of Medicine, Khairpur Medical College, Khairpur 66020, Pakistan
| | - Alishba Adnan
- Department of Medicine, Karachi Medical and Dental College, Karachi 74700, Pakistan
| | - Mahnoor Sukaina
- Department of Medicine, Karachi Medical and Dental College, Karachi 74700, Pakistan
| | - Ramsha Haider
- Department of Medicine, Karachi Medical and Dental College, Karachi 74700, Pakistan
| | - Abia Shahid
- Intensive Care Unit, Department of Chest Medicine, King Edward Medical University, Lahore 54000, Pakistan
| | | | - Rehmat Ullah Awan
- Department of Medicine, Ochsner Rush Medical Center, Meridian, MS 39301, USA
| | - Harpreet Singh
- Division of Pulmonary and Critical Care, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Natalie Duric
- Critical Care Directorate, The Grange University Hospital, Aneurin Bevan University Health Board, Cwmbran NP44 2XJ, UK
| | - Brigitta Fazzini
- Adult Critical Care Unit, The Royal London Hospital, Barts Health NHS Trust, London E1 1BB, UK
| | - Antoni Torres
- Department of Pneumology, Respiratory Institute, Hospital Clinic of Barcelona, 08036 Barcelona, Spain
- CibeRes (Centro de Investigación Biomédica en Red de Enfermedades Respiratorias, 06/06/0028), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 28029 Barcelona, Spain
- School of Medicine, University of Barcelona, 08036 Barcelona, Spain
| | - Tamas Szakmany
- Critical Care Directorate, The Grange University Hospital, Aneurin Bevan University Health Board, Cwmbran NP44 2XJ, UK
- Department of Anaesthesia, Intensive Care and Pain Medicine, Division of Population Medicine, Cardiff University, Cardiff CF14 4XN, UK
- Correspondence: (H.A.C.); (T.S.); Tel.: +92-332-448-7886 (H.A.C.); +44-292-074-4852 (T.S.)
| |
Collapse
|
15
|
Yarahmadi S, Ebrahimzadeh F, Mohamadipour F, Cheraghian T, Eskini M. Effect of Prone Position on Clinical Outcomes of Non-Intubated Patients with Covid-19: A Randomized Clinical Trial. Collegian 2022; 30:449-456. [PMID: 36591534 PMCID: PMC9792421 DOI: 10.1016/j.colegn.2022.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 12/14/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
Background Prone positioning (PP) is a well-known respiratory support approach. Limited data are available for the use of PP in non-intubated patients with COVID-19. Aim This study aims to investigate the effect of PP on the clinical outcomes of patients with COVID-19 pneumonia. Methods In This clinical trial, the participants in the PP group (n=41) were asked to lie comfortably in a prone position for 90 minutes. In the supine position (SP) group (n=41), the participants were asked to lie comfortably in a supine position for 90 minutes. Clinical data such as oxygen saturation, respiratory rate, the severity of dyspnea, mean arterial pressure, and pulse rate were assessed at 0 (immediately before), 30, 60, 90 minutes after the start of the intervention and 30 min after resuming the supine position. The participants in the PP group were then asked to intermittently stay in a prone position for a total of eight hours per 24 hours of hospitalization. The participants in the control group were asked to remain in their usual positions during the hospital stay. Finally, the length of hospital stay, intubation rate, and survival assessed. Findings Prone positioning was associated with significant improvement in oxygen saturation (P = 0.001), respiratory rate (P=0.004), the severity of dyspnea (P=0.014), and mean arterial pressure (P=0.027). There was no significant difference between the two groups in terms of pulse rate (P=0.890), hospital stay (P=0.994), intubation rate (P=0.324), and survival (P=0.091). Discussion Our results demonstrated that prone positioning showed marked improvement in some short-term clinical outcomes in non-intubated patients with COVID-19. Conclusion Prone positioning can be considered an inexpensive, accessible, and simple measure in awake non-intubated patients with COVID-19.
Collapse
Affiliation(s)
- Sajad Yarahmadi
- Social Determinants of Health Research Center, School of Nursing and Midwifery, Lorestan University of Medical Sciences, Khorramabad, Iran,Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran,Correspondence to: Environmental Health Research Center, School of Nursing and Midwifery, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Farzad Ebrahimzadeh
- Nutritional Health Research Center, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Fatemeh Mohamadipour
- Social Determinants of Health Research Center, School of Nursing and Midwifery, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Tayebeh Cheraghian
- Cardiovascular Research Center, Shahid Rahimi Hospital, School of Nursing and Midwifery, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Mahtab Eskini
- Social Determinants of Health Research Center, Shohadaye Ashayer Hospital, School of Nursing and Midwifery, Lorestan University of Medical Sciences, Khorramabad, Iran
| |
Collapse
|
16
|
Chong WH, Saha BK, Tan CK. Clinical Outcomes of Routine Awake Prone Positioning in COVID-19 Patients: A Systematic Review and Meta-analysis of Randomized Controlled Trials. Prague Med Rep 2022; 123:140-165. [PMID: 36107444 DOI: 10.14712/23362936.2022.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Abstract
Before coronavirus disease 2019 (COVID-19) emerged, proning had been demonstrated to improve oxygenation in those with acute hypoxic respiratory failure and be performed in non-intensive care settings. This benefit was further exemplified by the COVID-19 pandemic, leading to awake prone positioning (APP). We assessed the efficacy of routine APP versus standard care in preventing death and invasive mechanical ventilation (IMV) in non-intubated hypoxic COVID-19 patients. PubMed, Cochrane Library, Scopus, and medRxiv databases were used from January 1st, 2020, to January 15th, 2022, to identify randomized controlled trials (RCTs). Routine APP group were encouraged to be self-prone, whereas the standard care group received care according to local clinical practice and allowed APP crossover as rescue therapy. We included eight COVID-19 RCTs assessing 809 APP vs. 822 standard care patients. APP group had less IMV requirement (26.5% vs. 30.9%; OR - odds ratio 0.77; P=0.03) than the standard care group, with subgroup analysis showing greater benefit (32.5% vs. 39.1%; OR 0.75; P=0.02) for those mainly requiring oxygen support of non-invasive mechanical ventilation (NIMV) and high-flow nasal cannula (HFNC). The time to IMV initiation was similar (mean 8.3 vs. 10.0 days; P=0.66) for patients requiring NIMV and HFNC. Patients mainly receiving supplemental oxygen and non-rebreather masks had improved oxygenation parameters, although not statistically significant. Other outcomes involving all-cause hospital mortality, hospital and ICU (intensive care unit) length of stay, and adverse events were comparable. APP appeared to be an important modality for reducing IMV requirements, especially in those requiring NIMV and HFNC.
Collapse
Affiliation(s)
- Woon Hean Chong
- Department of Intensive Care Medicine, Ng Teng Fong General Hospital, National University Health System, Singapore.
| | - Biplab K Saha
- Department of Pulmonary and Critical Care, Ozarks Medical Center, West Plains, USA
| | - Chee Keat Tan
- Department of Intensive Care Medicine, Ng Teng Fong General Hospital, National University Health System, Singapore
| |
Collapse
|
17
|
The Significance of Implementing Bilevel Positive Airway Pressure under Cluster Nursing in Improving the Survival Possibility of Patients with Severe Pulmonary Infection Complicated by Respiratory Failure. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:2324797. [PMID: 36238471 PMCID: PMC9553364 DOI: 10.1155/2022/2324797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/23/2022] [Accepted: 08/27/2022] [Indexed: 11/18/2022]
Abstract
Objective. To explore the significance of bilevel positive airway pressure (BIPAP) under cluster nursing in improving the survival probability of patients with severe pulmonary infection (SPI) complicated by respiratory failure (RF). Methods. This research included 153 SPI patients complicated by RF (
) admitted between January 2020 and March 2022, including 55 cases in group A who were treated with BIPAP under cluster care during hospitalization, 47 cases in group B receiving invasive continuous mechanical ventilation during hospitalization, and 51 cases in group C treated with BIPAP under routine care during hospitalization. The three cohorts were compared regarding pre- and posttreatment serum inflammatory factors (IFs), blood gas (BG) parameters, heart rate (HR), and respiratory rate (RR). Besides, the cumulative time of ventilator use, successful ventilator weaning rate, mortality, and incidence of adverse events were counted. Finally, patients were scored for their psychological state using the Hamilton Anxiety/Depression Scale (HAMA/HAMD). Results. The posttreatment TNF-α, IL-6, PCT, WBC, and PaCO2 reduced statistically in all the three groups, with the lowest levels found in group A and the highest in group B (
); while PaO2 and SpO2 increased, with the highest values found in group A and the lowest in group B (
). Among the three groups, group A had the shortest duration of ventilator use, the highest successful weaning rate, and the lowest incidence of adverse events (
). Besides, HAMA and HAMD scores were the lowest in group A among the three groups, while those in group B were higher compared with group C (
). Conclusion. The implementation of BIPAP under cluster nursing can effectively reduce inflammatory responses of
patients, improve their vital signs, and enhance their psychological state, which has extremely high clinical application value.
Collapse
|
18
|
Kang H, Gu X, Tong Z. Effect of Awake Prone Positioning in non-Intubated COVID-19 Patients with Acute Hypoxemic Respiratory Failure: A Systematic Review and Meta-Analysis. J Intensive Care Med 2022; 37:1493-1503. [PMID: 36017576 PMCID: PMC9412157 DOI: 10.1177/08850666221121593] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background Awake prone positioning (APP) has been considered as a feasible treatment for patients with acute hypoxemic respiratory failure in non-intubated coronavirus disease 2019 (COVID-19). However, the efficacy and safety of APP remain uncertain. This meta-analysis aims to assess the effect of APP on intubation rate and mortality in COVID-19 patients with acute respiratory failure. Methods Relevant studies published from January 1, 2020, to June 17, 2022, were systematically searched. The primary outcomes were the intubation rate and mortality; the secondary outcome was the incidence of adverse events. Results Of 5746 identified publications, 22 were eligible for inclusion in the meta-analysis (N = 5146 patients). In comparison to the non-APP group, APP could decrease the intubation rates (OR 0.64; 95% CI 0.48-0.83; P = .001), particularly in the subgroup of the daily median duration of APP > 8 h and in the subgroup of receiving high flow nasal cannula (HFNC) or non-invasive ventilation (NIV). Patients treated with APP were associated with lower mortality rates (OR 0.61; 95% CI 0.45-0.81; P = .0008), but no mortality benefit was found in the APP group in the subgroup of randomized controlled trials (RCTs). No significant difference was found in the incidence of adverse events between the groups (OR 1.13; 95% CI 0.75-1.71; P = .56). Conclusion Our results demonstrated that APP could be an effective strategy to avoid intubation without detrimental effects in non-intubated patients with COVID-19, especially for patients requiring HFNC or NIV, and the daily APP duration with the target of minimally eight hours was suggested. In the subgroup of RCTs, the pooled results did not demonstrate any benefit of APP on mortality. Given the limited number of RCTs, further high-quality RCTs are needed to confirm the results. INPLASY registration number INPLASY2021110037.
Collapse
Affiliation(s)
- Hanyujie Kang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, 74639Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Xueqing Gu
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, 74639Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Zhaohui Tong
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, 74639Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
19
|
Chilkoti GT, Mohta M, Ahmad Z, Saxena AK. Awake Prone-Positioning in Patients on Non-Invasive Ventilation for Management of SARS-CoV-2 Pneumonia: A Systematic Review. Adv Respir Med 2022; 90:362-375. [PMID: 36004966 PMCID: PMC9717405 DOI: 10.3390/arm90040046] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/07/2022] [Accepted: 07/29/2022] [Indexed: 01/29/2024]
Abstract
INTRODUCTION Patients with corona virus disease-19 (COVID-19)-induced acute hypoxemic respiratory failure (AHRF) are often on non-invasive ventilation (NIV) and use of awake prone positioning (PP) may pose concern in terms of feasibility, efficacy and side effects. This systematic review was undertaken to evaluate the feasibility and efficacy of awake PP along with NIV in them. MATERIALS AND METHODS A systematic literature search was conducted from the inception of COVID-19 until 15 August 2021. Various factors including feasibility, interface used, outcome, efficacy, side effects and limitations in both intensive care unit (ICU) and Non-ICU setups were noted. RESULTS A total of 12 original articles and six case series including 359 patients were involved. Out of it, 40% (n = 122) of patients were in ICU and 60% (n = 237) in Non-ICU areas. Four clinical studies and four case series including 114 patients had evaluated PP along with helmet continuous positive airway pressure (CPAP). All had found PP with helmet CPAP to be feasible and efficacious; however, only one study documented the sustained improvement in oxygenation i.e., 12 h after PP. CONCLUSIONS The present systematic review observed moderate to serious risk of bias amongst the included studies along with heterogeneity in terms of varied respiratory support amongst patients. However, the use of awake PP in patients on NIV has been found to be feasible and efficacious with no adverse events.
Collapse
Affiliation(s)
- Geetanjali Tolia Chilkoti
- Department of Anesthesiology and Critical Care, Guru Teg Bahadur Hospital, University College of Medical Sciences, Shahdara, Delhi 110095, India
| | - Medha Mohta
- Department of Anesthesiology and Critical Care, Guru Teg Bahadur Hospital, University College of Medical Sciences, Shahdara, Delhi 110095, India
| | - Zainab Ahmad
- Department of Anesthesiology and Critical Care, All India Institute of Medical Sciences Bhopal, Saket Nagar, Bhopal 462020, India
| | - Ashok Kumar Saxena
- Department of Anesthesiology and Critical Care, Guru Teg Bahadur Hospital, University College of Medical Sciences, Shahdara, Delhi 110095, India
| |
Collapse
|
20
|
Raimondi F, Cazzaniga S, Annibali S, Novelli L, Brivio M, Pappacena S, Malandrino L, Bonaffini PA, Bianco I, Liggeri N, Gritti P, Lorini FL, Sironi S, Di Marco F. Extent and Distribution of Parenchymal Abnormalities in Baseline CT-Scans Do Not Predict Awake Prone Positioning Response in COVID-19 Related ARDS. Diagnostics (Basel) 2022; 12:diagnostics12081848. [PMID: 36010199 PMCID: PMC9406535 DOI: 10.3390/diagnostics12081848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/24/2022] [Accepted: 07/24/2022] [Indexed: 12/15/2022] Open
Abstract
Prone positioning is frequently used for non-intubated hypoxemic patients with COVID-19, although conclusive evidence is still lacking. The aim of the present study was to investigate whether baseline CT-scans could predict the improvement in oxygenation in COVID-19 related Acute respira-tory syndrome (ARDS) patients when pronated. Methods: A retrospective study of COVID-19 patients who underwent non-invasive ventilation (NIV) and prone positioning was conducted. Results: Forty-five patients were included. On average, 50% of the overall lung volume was affected by the disease, as observed in the CT-scans, with ground glass opacities (GGOs) and consolidations accounting for 44% and 4%, respectively. The abnormalities were mainly posterior, as demonstrated by posterior/anterior distribution ratios of 1.5 and 4.4 for GGO and consolidation, respectively. The median PaO2/FiO2 ratio during NIV in a supine position (SP1) was 140 [IQR 108–169], which improved by 67% (+98) during prone positioning, on average. Once supine positioning was resumed (SP2), the improvement in oxygenation was maintained in 28 patients (62% of the overall population, categorized as “responders”). We found no significant differences between responders and non-responders in terms of the extent (p = 0.92) and the distribution of parenchymal abnormalities seen in the baseline CT (p = 0.526). Conclusion: Despite the lack of a priori estimation of the sample size, considering the absence of any trends in the differences and correlations, we can reasonably conclude that the baseline chest CT-scan does not predict a gas-exchange response in awake prone-positioned patients with COVID-19 related ARDS. Physicians dealing with this category of patients should not rely on the imaging at presentation when evaluating whether to pronate patients.
Collapse
Affiliation(s)
- Federico Raimondi
- Pulmonary Medicine Unit, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (F.R.); (L.N.); (S.P.); (L.M.)
| | - Sara Cazzaniga
- Department of Intensive Critical Care, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (S.C.); (M.B.); (P.G.); (F.L.L.)
| | - Simona Annibali
- Department of Diagnostic Radiology, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (S.A.); (P.A.B.); (I.B.); (N.L.); (S.S.)
- Department of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
| | - Luca Novelli
- Pulmonary Medicine Unit, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (F.R.); (L.N.); (S.P.); (L.M.)
| | - Matteo Brivio
- Department of Intensive Critical Care, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (S.C.); (M.B.); (P.G.); (F.L.L.)
| | - Simone Pappacena
- Pulmonary Medicine Unit, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (F.R.); (L.N.); (S.P.); (L.M.)
- Department of Health Sciences, University of Milan, 20122 Milan, Italy
| | - Luca Malandrino
- Pulmonary Medicine Unit, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (F.R.); (L.N.); (S.P.); (L.M.)
- Department of Health Sciences, University of Milan, 20122 Milan, Italy
| | - Pietro Andrea Bonaffini
- Department of Diagnostic Radiology, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (S.A.); (P.A.B.); (I.B.); (N.L.); (S.S.)
- Department of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
| | - Ilaria Bianco
- Department of Diagnostic Radiology, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (S.A.); (P.A.B.); (I.B.); (N.L.); (S.S.)
- Department of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
| | - Noemi Liggeri
- Department of Diagnostic Radiology, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (S.A.); (P.A.B.); (I.B.); (N.L.); (S.S.)
- Department of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
| | - Paolo Gritti
- Department of Intensive Critical Care, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (S.C.); (M.B.); (P.G.); (F.L.L.)
| | - Ferdinando Luca Lorini
- Department of Intensive Critical Care, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (S.C.); (M.B.); (P.G.); (F.L.L.)
- Department of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
| | - Sandro Sironi
- Department of Diagnostic Radiology, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (S.A.); (P.A.B.); (I.B.); (N.L.); (S.S.)
- Department of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
| | - Fabiano Di Marco
- Pulmonary Medicine Unit, ASST Papa Giovanni XXIII, 24127 Bergamo, Italy; (F.R.); (L.N.); (S.P.); (L.M.)
- Department of Health Sciences, University of Milan, 20122 Milan, Italy
- Correspondence: ; Tel.: +39-035-2673456
| |
Collapse
|
21
|
Schroeder I, Irlbeck M, Zoller M. Nichtinvasive respiratorische Unterstützung und invasive Beatmung bei COVID‑19. Anaesthesist 2022; 71:333-339. [PMID: 35397669 PMCID: PMC8994638 DOI: 10.1007/s00101-022-01114-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/26/2022] [Indexed: 12/23/2022]
Abstract
Die Kontroverse um das Thema Beatmung bei vorliegender „coronavirus disease 2019“ (COVID-19) hält an. Zu Beginn der Pandemie wurde postuliert, dass die hohe Letalität auf den Intensivstationen möglicherweise auf eine zu frühe Intubation zurückzuführen sei. Im Verlauf der Pandemie änderten sich die Empfehlungen der Fachgesellschaften, und die Häufigkeit der Anwendung von nichtinvasiver respiratorischer Unterstützung (NIRS) nahm zu. Weiterhin fehlen große Studien zur optimalen Beatmung von COVID-19-Patienten. Der vorliegende Übersichtsbeitrag fasst die pathophysiologischen Grundlagen, den aktuellen Stand der Wissenschaft und die Auswirkungen der unterschiedlichen Behandlungsmodalitäten auf das Outcome zusammen.
Collapse
Affiliation(s)
- Ines Schroeder
- Klinik für Anästhesiologie, LMU Klinikum, Marchioninistraße 15, 81377, München, Deutschland.
| | - Michael Irlbeck
- Klinik für Anästhesiologie, LMU Klinikum, Marchioninistraße 15, 81377, München, Deutschland
| | - Michael Zoller
- Klinik für Anästhesiologie, LMU Klinikum, Marchioninistraße 15, 81377, München, Deutschland
| |
Collapse
|
22
|
Barker J, Koeckerling D, Mudalige NL, Oyefeso O, Pan D. Awake prone positioning for patients with covid-19. BMJ 2022; 376:o632. [PMID: 35321937 DOI: 10.1136/bmj.o632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Joseph Barker
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- Department of Cardiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - David Koeckerling
- Division of Angiology, Swiss Cardiovascular Center, Bern University Hospital, University of Bern, Switzerland
| | | | | | - Daniel Pan
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Department of Infectious Diseases and HIV Medicine, Hospitals of Leicester NHS Trust, Leicester, UK
| |
Collapse
|
23
|
Mancilla-Galindo J, Kammar-García A, Zamarrón-López EI, Guerrero-Gutiérrez MA, Escarramán-Martínez D, Pérez-Nieto OR. Awake Prone Positioning in Non-Intubated Patients With COVID-19. Respir Care 2022; 67:280-281. [PMID: 34479986 PMCID: PMC9993946 DOI: 10.4187/respcare.09547] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Ashuin Kammar-García
- Departamento de Urgencias y Atención Institucional ContinuaInstituto Nacional de Nutrición y Ciencias Médicas "Salvador Zubirán"Mexico City, MexicoSección de Estudios de Posgrado e InvestigaciónEscuela Superior de Medicina, Instituto Politécnico NacionalMexico City, Mexico
| | - Eder I Zamarrón-López
- Unidad de Cuidados Intensivos RespiratoriosHospital General Regional IMSS No. 6Ciudad Madero, Mexico
| | | | | | - Orlando R Pérez-Nieto
- Unidad de Cuidados Intensivos RespiratoriosHospital General San Juan del RíoQuerétaro, Mexico
| |
Collapse
|
24
|
Perez-Nieto OR, Escarraman-Martinez D, Guerrero-Gutierrez MA, Zamarron-Lopez EI, Mancilla-Galindo J, Kammar-García A, Martinez-Camacho MA, Deloya-Tomás E, Sanchez-Díaz JS, Macías-García LA, Soriano-Orozco R, Cruz-Sánchez G, Salmeron-Gonzalez JD, Toledo-Rivera MA, Mata-Maqueda I, Morgado-Villaseñor LA, Martinez-Mazariegos JJ, Flores Ramirez R, Medina-Estrada JL, Ñamendys-Silva SA. Awake prone positioning and oxygen therapy in patients with COVID-19: the APRONOX study. Eur Respir J 2022; 59:2100265. [PMID: 34266942 PMCID: PMC8576803 DOI: 10.1183/13993003.00265-2021] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/26/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The awake prone positioning strategy for patients with acute respiratory distress syndrome is a safe, simple and cost-effective technique used to improve hypoxaemia. We aimed to evaluate intubation and mortality risk in patients with coronavirus disease 2019 (COVID-19) who underwent awake prone positioning during hospitalisation. METHODS In this retrospective, multicentre observational study conducted between 1 May 2020 and 12 June 2020 in 27 hospitals in Mexico and Ecuador, nonintubated patients with COVID-19 managed with awake prone or awake supine positioning were included to evaluate intubation and mortality risk through logistic regression models; multivariable and centre adjustment, propensity score analyses, and E-values were calculated to limit confounding. RESULTS 827 nonintubated patients with COVID-19 in the awake prone (n=505) and awake supine (n=322) groups were included for analysis. Fewer patients in the awake prone group required endotracheal intubation (23.6% versus 40.4%) or died (19.8% versus 37.3%). Awake prone positioning was a protective factor for intubation even after multivariable adjustment (OR 0.35, 95% CI 0.24-0.52; p<0.0001, E=2.12), which prevailed after propensity score analysis (OR 0.41, 95% CI 0.27-0.62; p<0.0001, E=1.86) and mortality (adjusted OR 0.38, 95% CI 0.26-0.55; p<0.0001, E=2.03). The main variables associated with intubation among awake prone patients were increasing age, lower baseline peripheral arterial oxygen saturation/inspiratory oxygen fraction ratio (P aO2 /F IO2 ) and management with a nonrebreather mask. CONCLUSIONS Awake prone positioning in hospitalised nonintubated patients with COVID-19 is associated with a lower risk of intubation and mortality.
Collapse
Affiliation(s)
| | - Diego Escarraman-Martinez
- Dept of Anaesthesia, Hospital de Especialidades Centro Médico Nacional "LaRaza", Mexico City, Mexico
| | | | | | - Javier Mancilla-Galindo
- Unidad de Investigación UNAM-INC, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
- Respiratory Medicine, Instituto Nacional de Enfermedades Respiratorias, Mexico City, Mexico
| | - Ashuin Kammar-García
- Emergency Dept, Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán", Mexico City, Mexico
| | | | | | - Jesús S Sanchez-Díaz
- Intensive Care Unit, Hospital de Alta Especialidad IMSS "Adolfo Ruiz Cortines" Veracruz, Veracruz, Mexico
| | - Luis A Macías-García
- Intensive Care Unit, Hospital Regional ISSSTE "Fernando Quiroz Gutiérrez", Mexico City, Mexico
| | | | | | | | | | - Ivette Mata-Maqueda
- Secretaría de Salud del Estado de Querétaro, Ethics and Research Committee, Mexico
| | | | | | | | | | | |
Collapse
|
25
|
Chiumello D, Chiodaroli E, Coppola S, Cappio Borlino S, Granata C, Pitimada M, Wendel Garcia PD. Awake prone position reduces work of breathing in patients with COVID-19 ARDS supported by CPAP. Ann Intensive Care 2021; 11:179. [PMID: 34928455 PMCID: PMC8686083 DOI: 10.1186/s13613-021-00967-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 12/05/2021] [Indexed: 12/13/2022] Open
Abstract
Background The use of awake prone position concomitant to non-invasive mechanical ventilation in acute respiratory distress syndrome (ARDS) secondary to COVID-19 has shown to improve gas exchange, whereas its effect on the work of breathing remain unclear. The objective of this study was to evaluate the effects of awake prone position during helmet continuous positive airway pressure (CPAP) ventilation on inspiratory effort, gas exchange and comfort of breathing. Methods Forty consecutive patients presenting with ARDS due to COVID-19 were prospectively enrolled. Gas exchange, esophageal pressure swing (ΔPes), dynamic transpulmonary pressure (dTPP), modified pressure time product (mPTP), work of breathing (WOB) and comfort of breathing, were recorded on supine position and after 3 h on prone position. Results The median applied PEEP with helmet CPAP was 10 [8–10] cmH2O. The PaO2/FiO2 was higher in prone compared to supine position (Supine: 166 [136–224] mmHg, Prone: 314 [232–398] mmHg, p < 0.001). Respiratory rate and minute ventilation decreased from supine to prone position from 20 [17–24] to 17 [15–19] b/min (p < 0.001) and from 8.6 [7.3–10.6] to 7.7 [6.6–8.6] L/min (p < 0.001), respectively. Prone position did not reduce ΔPes (Supine: − 7 [− 9 to − 5] cmH2O, Prone: − 6 [− 9 to − 5] cmH2O, p = 0.31) and dTPP (Supine: 17 [14–19] cmH2O, Prone: 16 [14–18] cmH2O, p = 0.34). Conversely, mPTP and WOB decreased from 152 [104–197] to 118 [90–150] cmH2O/min (p < 0.001) and from 146 [120–185] to 114 [95–151] cmH2O L/min (p < 0.001), respectively. Twenty-six (65%) patients experienced a reduction in WOB of more than 10%. The overall sensation of dyspnea was lower in prone position (p = 0.005). Conclusions Awake prone position with helmet CPAP enables a reduction in the work of breathing and an improvement in oxygenation in COVID-19-associated ARDS. Supplementary Information The online version contains supplementary material available at 10.1186/s13613-021-00967-6.
Collapse
Affiliation(s)
- Davide Chiumello
- Department of Anesthesia and Intensive Care, ASST Santi Paolo E Carlo, San Paolo University Hospital, Via A. di Rudinì 8, Milan, Italy. .,Department of Health Sciences, University of Milan, Milan, Italy. .,Coordinated Research Center On Respiratory Failure, University of Milan, Milan, Italy.
| | - Elena Chiodaroli
- Department of Anesthesia and Intensive Care, ASST Santi Paolo E Carlo, San Paolo University Hospital, Via A. di Rudinì 8, Milan, Italy
| | - Silvia Coppola
- Department of Anesthesia and Intensive Care, ASST Santi Paolo E Carlo, San Paolo University Hospital, Via A. di Rudinì 8, Milan, Italy
| | | | - Claudia Granata
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Matteo Pitimada
- Department of Health Sciences, University of Milan, Milan, Italy
| | | |
Collapse
|
26
|
Golnabi EY, Sanders JM, Johns ML, Lin K, Ortwine JK, Wei W, Mang NS, Cutrell JB. Therapeutic Options for Coronavirus Disease 2019 (COVID-19): Where Are We Now? Curr Infect Dis Rep 2021; 23:28. [PMID: 34924819 PMCID: PMC8665318 DOI: 10.1007/s11908-021-00769-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2021] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW Rapidly evolving treatment paradigms of coronavirus disease 2019 (COVID-19) introduce challenges for clinicians to keep up with the pace of published literature and to critically appraise the voluminous data produced. This review summarizes the clinical evidence from key studies examining the place of therapy of recommended drugs and management strategies for COVID-19. RECENT FINDINGS The global magnitude and duration of the pandemic have resulted in a flurry of interventional treatment trials evaluating both novel and repurposed drugs targeting various aspects of the viral life cycle. Additionally, clinical observations have documented various stages or phases of COVID-19 and underscored the importance of timing for the efficacy of studied therapies. Since the start of the COVID-19 pandemic, many observational, retrospective, and randomized controlled studies have been conducted to guide management of COVID-19 using drug therapies and other management strategies. Large, randomized, or adaptive platform trials have proven the most informative to guide recommended treatments to-date. Antimicrobial stewardship programs can play a pivotal role in ensuring appropriate use of COVID-19 therapies based on evolving clinical data and limiting unnecessary antibiotics given low rates of co-infection. SUMMARY Given the rapidly evolving medical literature and treatment paradigms, it is recommended to reference continuously updated, curated guidelines from national and international sources. While the drugs and management strategies mentioned in this review represent the current state of recommendations, many therapies are still under investigation to further define optimal COVID-19 treatment. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11908-021-00769-8.
Collapse
Affiliation(s)
- Esther Y. Golnabi
- Department of Pharmacy, University of Texas Southwestern Medical Center, Dallas, US
| | - James M. Sanders
- Department of Pharmacy, University of Texas Southwestern Medical Center, Dallas, US
| | - Meagan L. Johns
- Department of Pharmacy, University of Texas Southwestern Medical Center, Dallas, US
| | - Kevin Lin
- Department of Pharmacy, Ochsner Medical Center, New Orleans, US
| | | | - Wenjing Wei
- Department of Pharmacy, Parkland Hospital, Dallas, US
| | | | - James B. Cutrell
- Department of Medicine, Division of Infectious Diseases and Geographic
Medicine, University of Texas Southwestern Medical Center, Dallas, US
| |
Collapse
|
27
|
González-Seguel F, Pinto-Concha JJ, Aranis N, Leppe J. Adverse Events of Prone Positioning in Mechanically Ventilated Adults With ARDS. Respir Care 2021; 66:1898-1911. [PMID: 34301802 PMCID: PMC9993788 DOI: 10.4187/respcare.09194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Prone positioning is a therapy utilized globally to improve gas exchange, minimize ventilator-induced lung injury, and reduce mortality in ARDS, particularly during the ongoing coronavirus disease 2019 (COVID-19) pandemic. Whereas the respiratory benefits of prone positioning in ARDS have been accepted, the concurrent complications could be undervalued. Therefore, this study aimed to identify the adverse events (AEs) related to prone positioning in ARDS and, secondarily, to collect strategies and recommendations to mitigate these AEs. METHODS In this scoping review, we searched recommendation documents and original studies published between June 2013 and November 2020 from 6 relevant electronic databases and the websites of intensive care societies. RESULTS We selected 41 documents from 121 eligible documents, comprising 13 recommendation documents and 28 original studies (involving 1,578 subjects and 994 prone maneuvers). We identified > 40 individual AEs, and the highest-pooled occurrence rates were those of severe desaturation (37.9%), barotrauma (30.5%), pressure sores (29.7%), ventilation-associated pneumonia (28.2%), facial edema (16.7%), arrhythmia (15.4%), hypotension (10.2%), and peripheral nerve injuries (8.1%). The reported mitigation strategies during prone positioning included alternate face rotation (18 [43.9%]), repositioning every 2 h (17 [41.5%]), and the use of pillows under the chest and pelvis (14 [34.1%]). The reported mitigation strategies for performing the prone maneuver comprised one person being at the headboard (23 [56.1%]), the use of a pre-maneuver safety checklist (18 [43.9%]), vital sign monitoring (15 [36.6%]), and ensuring appropriate ventilator settings (12 [29.3%]). CONCLUSIONS We identified > 40 AEs reported in prone positioning ARDS studies, including additional AEs not yet reported by previous systematic reviews. The pooled AE proportions collected in this review could guide research and clinical practice decisions, and the strategies to mitigate AEs could promote future consensus-based recommendations.
Collapse
Affiliation(s)
- Felipe González-Seguel
- Servicio de Medicina Física y Rehabilitación and Departamento de Paciente Crítico, Clínica Alemana Universidad del Desarrollo, Santiago, Chile.
- Master Program in Physical Therapy and Rehabilitation, School of Physical Therapy, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Juan José Pinto-Concha
- Master Program in Physical Therapy and Rehabilitation, School of Physical Therapy, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Centro de Paciente Crítico Adulto, Clínica INDISA, Santiago, Chile
| | - Nadine Aranis
- Servicio de Medicina Física y Rehabilitación and Departamento de Paciente Crítico, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
- Master Program in Physical Therapy and Rehabilitation, School of Physical Therapy, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| | - Jaime Leppe
- Master Program in Physical Therapy and Rehabilitation, School of Physical Therapy, Facultad de Medicina, Clínica Alemana Universidad del Desarrollo, Santiago, Chile
| |
Collapse
|
28
|
Morrell ED, Wurfel MM. Prone positioning for non-intubated hypoxemic patients with COVID-19: cheap, easy, and makes sense, but does it work? Eur Respir J 2021; 59:13993003.02416-2021. [PMID: 34649977 PMCID: PMC8866768 DOI: 10.1183/13993003.02416-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 09/20/2021] [Indexed: 12/05/2022]
Abstract
Since the 1970s, prone positioning has been proposed as an inexpensive and physiologically justified management strategy for patients with acute respiratory distress syndrome (ARDS). The physiological rationale for prone positioning in ARDS has been well described [1,2]. Placing a person in the prone position reduces lung compression, which facilitates better ventilation/perfusion matching and leads to improved oxygenation. However, determining whether patients receive clinically meaningful benefit from prone positioning in the form of reduced mortality or time supported on mechanical ventilation has been challenging. Early trials that used prone positioning as a “rescue” therapy or applied relatively small “doses” of prone positioning (i.e. limited duration of time in prone position) did not demonstrate improvements in mortality or ventilator-free days (VFDs) [3–5]. This editorial evaluates a large observational study that identified strong associations between awake prone positioning and decreased mortality in hospitalised patients with COVID-19https://bit.ly/3m3NeAx
Collapse
Affiliation(s)
- Eric D Morrell
- VA Puget Sound Heath Care System, Seattle, Washington, USA .,Harborview Medical Center, Seattle, Washington, USA.,Division of Pulmonary, Critical Care, and Sleep Medicine, University of Washington Medical Center, University of Washington, Seattle, Washington, USA
| | | |
Collapse
|
29
|
Martins-Filho PR, Ferreira LC, Heimfarth L, Araújo AADS, Quintans-Júnior LJ. Efficacy and safety of hydroxychloroquine as pre-and post-exposure prophylaxis and treatment of COVID-19: A systematic review and meta-analysis of blinded, placebo-controlled, randomized clinical trials. LANCET REGIONAL HEALTH. AMERICAS 2021; 2:100062. [PMID: 34485970 PMCID: PMC8403035 DOI: 10.1016/j.lana.2021.100062] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Hydroxychloroquine (HCQ) is an anti-malarial and immunomodulatory drug considered a potential candidate for drug repurposing in COVID-19 due to their in vitro antiviral activity against SARS-CoV-2. Despite the potential antiviral effects and anti-inflammatory profile, the results based on clinical studies are contradictory. Therefore, the quality of the decision-making process from meta-analyses summarizing the available evidence selecting studies with different designs and unblinded trials is limited. The aim of this study was to synthesize the best evidence on the efficacy and safety of HCQ as pre-and post-exposure prophylaxis and treatment of non-hospitalized and hospitalized patients with COVID-19. METHODS Searches were performed in PubMed, Web of Science, Embase, Lilacs, the website ClinicalTrials.gov and the preprint server medRxiv from January 1, 2020 to May 17, 2021. The following elements were used to define eligibility criteria: (1) Population: individuals at high-risk of exposure to SARS-CoV-2 (pre-exposure), individuals who had close contact with a positive or probable case of COVID-19 (post-exposure), non-hospitalized patients with COVID-19 and hospitalized patients with COVID-19; (2) Intervention: HCQ; (3) Comparison: placebo; (4) Outcomes: incidence of SARS-CoV-2 infection, need for hospitalization, length of hospital stay, need for invasive mechanical ventilation (MV), death, and adverse events; and (5) Study type: blinded, placebo-controlled, randomized clinical trials (RCTs). Risk of bias was judged according to the Cochrane guidelines for RCTs. Treatment effects were reported as relative risk (RR) for dichotomous variables and mean difference (MD) for continuous variables with 95% confidence intervals (CI). We used either a fixed or random-effects model to pool the results of individual studies depending on the presence of heterogeneity. The GRADE system was used to evaluate the strength of evidence between use of HCQ and the outcomes of interest. FINDINGS Fourteen blinded, placebo-controlled RCTs were included in this meta-analysis. Four trials (1942 patients: HCQ = 1271; placebo = 671) used HCQ as a prophylactic medication pre-exposure to COVID-19, two (1650 patients: HCQ = 821; placebo = 829) as a prophylactic medication post-exposure to COVID-19, three (1018 patients: HCQ = 497; placebo = 521) as treatment for non-hospitalized patients, and five (1138 patients: HCQ = 572; placebo = 566) as treatment for hospitalized patients with COVID-19. We found no decreased risk of SARS-CoV-2 infection among individuals receiving HCQ as pre-exposure (RR = 0.90; 95% CI 0.46 to 1.77) or post-exposure (RR = 0.96; 95% CI 0.72 to 1.29) prophylaxis to prevent COVID-19. There was no significant decreased risk of hospitalization for outpatients with SARS-CoV-2 infection (RR = 0.64; 95% CI 0.33 to 1.23) and no decreased risk of MV (RR = 0.81; 95% CI 0.49 to 1.34) and death (RR = 1.05; 95% CI 0.62 to 1.78) among hospitalized patients with COVID-19 receiving HCQ. The certainty of the results on the lack of clinical benefit for HCQ was rated as moderate. Moreover, our results demonstrated an increased risk for any adverse events and gastrointestinal symptoms among those using HCQ. INTERPRETATION Available evidence based on the results of blinded, placebo-controlled RCTs showed no clinical benefits of HCQ as pre-and post-exposure prophylaxis and treatment of non-hospitalized and hospitalized patients with COVID-19. FUNDING There was no funding source.
Collapse
Affiliation(s)
- Paulo Ricardo Martins-Filho
- Investigative Pathology Laboratory, Federal University of Sergipe, Aracaju, Sergipe, Brazil,Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Sergipe, Brazil,Corresponding author. Prof. Paulo Ricardo Martins-Filho. Universidade Federal de Sergipe, Hospital Universitário, Laboratório de Patologia Investigativa. Rua Cláudio Batista, s/n. Bairro Sanatório. Aracaju, Sergipe, Brasil. CEP
| | - Lis Campos Ferreira
- Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Sergipe, Brazil,Department of Medicine, Tiradentes University, Aracaju, Sergipe, Brazil
| | - Luana Heimfarth
- Laboratory of Neuroscience and Pharmacological Assays, Department of Physiology, Federal University of Sergipe, São Cristovão, Sergipe, Brazil
| | - Adriano Antunes de Souza Araújo
- Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Sergipe, Brazil,Laboratory of Pharmaceutical Assays and Toxicity, Department of Pharmacy, Federal University of Sergipe, São Cristovão, Sergipe, Brazil
| | - Lucindo José Quintans-Júnior
- Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, Sergipe, Brazil,Laboratory of Neuroscience and Pharmacological Assays, Department of Physiology, Federal University of Sergipe, São Cristovão, Sergipe, Brazil
| |
Collapse
|
30
|
Sweeney DA, Malhotra A. Coronavirus disease 2019 respiratory failure: what is the best supportive care for patients who require ICU admission? Curr Opin Crit Care 2021; 27:462-467. [PMID: 34310373 PMCID: PMC8452253 DOI: 10.1097/mcc.0000000000000863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW Currently, there is no cure for SARS-CoV-2 infection, yet hospital mortality rates for COVID-19 have improved over the course of the pandemic and may be due in part to improved supportive care in the ICU. This review highlights the evidence for and against various ICU supportive therapies for the treatment of critically ill patients with COVID-19. RECENT FINDINGS Early in the pandemic, there was great interest in novel ICU supportive care, both for the benefit of the patient, and the safety of clinicians. With a few exceptions (e.g. prone ventilation of nonintubated patients), clinicians abandoned most of these approaches (e.g. early intubation, avoidance of high flow or noninvasive ventilation). Standard critical care measures, especially for the treatment of severe viral respiratory infection including acute respiratory distress syndrome (ARDS) were applied to patients with COVID-19 with apparent success. SUMMARY In general, the COVID-19 pandemic reaffirmed the benefits of standard supportive care for respiratory failure and in particular, recent advances in ARDS treatment. Prone ventilation of nonintubated patients, an approach that was adopted early in the pandemic, is associated with improvement in oxygenation, but its impact on clinical outcome remains unclear. Otherwise, prone mechanical ventilation and avoidance of excessive tidal volumes, conservative fluid management, antibiotic stewardship and early evaluation for extracorporeal membrane oxygenation (ECMO) -- basic tenants of severe respiratory infections and ARDS care -- remain at the core of management of patients with severe COVID-19.
Collapse
Affiliation(s)
- Daniel A Sweeney
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | | |
Collapse
|
31
|
Suliman S, McClave SA, Taylor BE, Patel J, Omer E, Martindale RG. Barriers to nutrition therapy in the critically ill patient with COVID-19. JPEN J Parenter Enteral Nutr 2021; 46:805-816. [PMID: 34486137 PMCID: PMC8646569 DOI: 10.1002/jpen.2263] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Background Coronavirus disease 2019 (COVID‐19) has created challenges for intensivists, as high ventilatory demands and prolonged hypermetabolism make it difficult to sustain nutrition status. The purpose of this survey was to determine current practices in nutrition therapy and identify barriers to its delivery. Methods A survey about delivering nutrition therapy to critically ill patients with COVID‐19 was sent to clinicians at academic and community hospitals from September to December 2020. Results Of 440 who viewed the survey, 199 (45%) completed the questionnaire. Respondents were composed of 30%, physicians and 70% registered dietitians, with 51% representing community programs, 43% academic institutions, and 6% Veterans Affairs centers. Half (49%) had protocols for managing critically ill patients with COVID‐19, and 21% had a protocol for nutrition therapy. Although most respondents (83%) attempted to feed by the intragastric route, only 9% indicated that energy/protein needs were met. The biggest barriers to delivery of enteral nutrition (EN) involved the patients unpredictable clinical course and fear of aspiration given the lack of respiratory reserve. Intensivists were reluctant to add supplemental parenteral nutrition (PN) because of perceived lack of benefit. Conclusion The survey results would suggest that strategies for nutrition therapy based on the intragastric infusion of EN are unsuccessful in meeting the energy/protein needs of critically ill patients with COVID‐19. It is likely these barriers exist in providing nutrition to non‐Covid‐19 critically ill patients. Intensivists need protocols that optimally deliver intragastric EN, consider early postpyloric infusion, and address adding supplemental PN in a deteriorating nutrition status.
Collapse
Affiliation(s)
- Sally Suliman
- Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Stephen A McClave
- Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Beth E Taylor
- Department of Research for Patient Care Services, Barnes-Jewish Hospital, St Louis, Missouri, USA
| | - Jayshil Patel
- Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Endashaw Omer
- Department of Medicine, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Robert G Martindale
- Department of Surgery, Oregon Health Sciences University, Portland, Oregon, USA
| |
Collapse
|