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@#Objective To explore the efficacy of prone positioning ventilation in patients with acute respiratory distress syndrome (ARDS) after acute Stanford type A aortic dissection (STAAD) surgery. Methods From November 2019 to September 2021, patients with ARDS who was placed prone position after STAAD surgery in the Xiamen Cardiovascular Hospital of Xiamen University were collected. Data such as the changes of blood gas, respiratory mechanics and hemodynamic indexes before and after prone positioning, complications and prognosis were collected for statistical analysis. Results A total of 264 STAAD patients had surgical treatment, of whom 40 patients with postoperative ARDS were placed prone position. There were 37 males and 3 females with an average age of 49.88±11.46 years. The oxygen partial pressure, oxygenation index and peripheral blood oxygen saturation 4 hours and 12 hours after the prone positioning, and 2 hours and 6 hours after the end of the prone positioning were significantly improved compared with those before prone positioning ventilation (P<0.05). The oxygenation index 2 hours after the end of prone positioning which was less than 131.42 mm Hg, indicated that the patient might need ventilation two or more times of prone position. Conclusion Prone position ventilation for patients with moderate to severe ARDS after STAAD surgery is a safe and effective way to improve the oxygenation.
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Abstract The evidence regarding logistic considerations and safety events associated with prone position ventilation (PPV) is summarized and a flow diagrama for safe provision of mechanical ventilation in the setting of the COVID-19 pandemic is proposed. A review of the literature was conducted in the Medline via Pubmed, Embase, and Lilacs databases, the Cochrane Database of Systematic Reviews, Cochrane Central Register of Randomized Controlled Trials, Cochrane Database of Abstracts of Reviews of Effects, ProQuest Nursing and Allied Health Database, and Google scholar. Overall, 31 articles were selected for the analysis. The incidence of PPV-related safety events varies between 1% and 11.9% and the most frequent complications are pressure ulcers and airway complications. Early initiation of enteral nutrition is recommended, and transfers are possible in patients on PPV. There is controversy regarding contraindications and recommendations for PPV. Recommendations for its safe provision are based on expert opinions and the establishment of protocols for healthcare staff training. Clinical studies are required to determine which are the recommendations that should be considered for safe and reproducible PPV use during this pandemic.
Resumen Sintetizamos la evidencia con respecto a las consideraciones logísticas y los eventos de seguridad asociados a la ventilación mecánica en posición prona (VMPP) y proponemos un flujograma para realizarla de manera segura en el escenario de la pandemia por COVID-19. Para ello, realizamos una búsqueda de la literatura en las bases de datos Medline vía PubMed, Embase, Lilacs, Cochrane Database of Systematic Reviews, Cochrane Central Register of Randomized Controlled Trials, Cochrane Database of Abstracts of Reviews of Effects, ProQuest Nursing and Allied Health Database y Google académico. Se incluyeron 31 artículos para ser analizados. La incidencia de eventos de seguridad relacionados a la VMPP varía entre 1 % a 11.9 %, las complicaciones más frecuentes son las úlceras por presión y de la vía aérea. Se recomienda iniciar nutrición enteral temprana y es posible realizar traslado de pacientes con VMPP. Existe controversia acerca de las contraindicaciones y recomendaciones de la VMPP. Las recomendaciones para realizarla de forma segura se basan en opiniones de expertos y en la instauración de protocolos para el entrenamiento del personal de salud. Se requieren estudios clínicos para determinar cuáles recomendaciones son necesarias para que la VMPP se realice de forma segura y reproducible durante esta pandemia.
Subject(s)
Pancreas DivisumABSTRACT
RESUMO O objetivo deste estudo foi avaliar os efeitos agudos dos tipos de resposta à posição prona (PP) em pacientes acordados com COVID-19. Realizou-se um estudo prospectivo, unicêntrico, com 32 pacientes acordados com COVID-19, e com uso de oxigênio suplementar. A resposta à posição prona foi feita durante 30 minutos. Após o teste, os pacientes foram orientados a permanecer na PP diariamente, de acordo com a tolerância de cada um. As variáveis saturação de oxigênio (SpO2), frequência cardíaca, frequência respiratória, índice ROX e taxa de internação na unidade de terapia intensiva (UTI) foram registradas. Um total de 25 pacientes (78,1%) responderam à PP, sendo que 13 (40,6%) apresentaram resposta persistente e 12 (37,5%) transitória. Sete pacientes (21,9%) não responderam. Os pacientes com respostas persistente e transitória tiveram aumento da SpO2 (p<0,001) e do índice ROX (p=0,001 e p<0,001, respectivamente), e redução das frequências cardíaca (p=0,01 e p=0,02, respectivamente) e respiratória (p=0,003 e p=0,001, respectivamente). Não houve diferença em nenhuma das variáveis nos pacientes que não responderam à PP. A taxa de internação na UTI dos pacientes que apresentaram resposta persistente, transitória ou que não responderam foi de 30,8% (4/13), 41,7% (5/12) e 57,1% (4/7), respectivamente. Conclui-se que os pacientes que responderam à PP apresentaram redução das frequências cardíaca e respiratória e aumento do índice ROX, sem interferir na taxa de internação.
RESUMEN El propósito de este estudio fue evaluar los efectos agudos de los tipos de respuesta a la posición prona (PP) en los pacientes despiertos hospitalizados por COVID-19. Se realizó un estudio prospectivo, unicéntrico, con la participación de 32 pacientes hospitalizados por COVID-19 y con el uso de oxígeno suplementario. La respuesta a la posición prono se realizó durante 30 minutos. Después de la prueba, se orientó que los pacientes permanezcan en la PP diariamente según su tolerancia. Se registraron las variables saturación de oxígeno (SpO2), frecuencia cardiaca, frecuencia respiratoria, índice ROX y tasa de ingreso a la unidad de cuidados intensivos (UCI). Un total de 25 pacientes (78,1%) respondieron a la PP, de los cuales 13 (40,6%) tuvieron respuesta persistente y 12 (37,5%) presentaron respuesta transitoria. Siete pacientes (21,9%) no respondieron. Los pacientes con respuestas persistentes y transitorias presentaron un incremento de la SpO2 (p<0,001) y el índice ROX (p=0,001 y p<0,001, respectivamente), y una reducción de las frecuencias cardiaca (p=0,01 y p=0,02, respectivamente) y respiratoria (p=0,003 y p=0,001, respectivamente). No hubo diferencia en ninguna de las variables en los pacientes que no respondieron a la PP. La tasa de ingreso en la UCI de pacientes que tuvieron una respuesta persistente, transitoria o que no respondieron a la PP fue de un 30,8% (4/13), un 41,7% (5/12) y un 57,1% (4/7), respectivamente. Se concluye que los pacientes que respondieron a la PP tuvieron una reducción de las frecuencias cardiaca y respiratoria, e incremento del índice ROX, sin interferir en la tasa de hospitalización.
ABSTRACT This study aims to evaluate the acute effects of the responses to prone positioning (PP) in awake patients with COVID-19. A prospective, single-centered study, using supplemental oxygen, was conducted with 32 awake patients with COVID-19. The response to PP was performed for 30 minutes. According to their tolerance, the patients were instructed to daily remain in PP. The variables for oxygen saturation (SpO2), heart rate, respiratory rate, ROX index and intensive care unit (ICU) admission rate were registered. In total, 25 patients (78.1%) responded to PP, with 13 (40.6%) showing persistent response and 12 (37.5%) showing transient response. Seven patients (21.9%) did not respond. Patients with persistent and transient responses increased SpO2 (p<0.001) and ROX index (p=0.001 and p<0.001, respectively), and reduced heart rate (p=0.01 and p=0.02, respectively), and respiratory rate (p=0.003 and p=0.001, respectively). The variables were similar in patients who did not respond to PP. The ICU admission rate of patients who had persistent or transient response, or did not respond was 30.8% (4/13), 41.7% (5/12), and 57.1% (4/7), respectively. The patients who responded to PP showed reduced heart and respiratory rates and increased ROX index, without interfering in the hospitalization rate.
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Objective:To evaluate the clinical effect of awake prone positioning (APP) for common coronavirus disease 2019 (COVID-19) caused by Omicron variant.Methods:Retrospectively analyze the clinical data of patients with COVID-19 caused by Omicron variant admitted by medical team of Tianjin Third Central Hospital during the period of supporting Tianjin COVID-19 designated hospital from January 8 to February 20, 2022. Patients who met the diagnostic criteria for common COVID-19 and had risk factors for developing severe disease or had pulse oxygen saturation (SpO 2) ≤0.93 after exercise without supplementary oxygen were enrolled. Patients were divided into APP group and control group according to whether they completed the daily 12-hours APP in the first three days after enrollment. Demographic characteristics, clinical symptoms, COVID-19 vaccination status, laboratory examination, disease progression (progression to severe), time to nucleic acid negative conversion, length of hospital stay, and adverse reactions and tolerability [visual analog scale (VAS) score (the higher the score, the worse the tolerability] during APP were evaluated in two groups. Interleukin-6 (IL-6), C-reactive protein (CRP), SpO 2/inhaled oxygen concentration (FiO 2) ratio and ROX index (ROXI) were compared between two groups at enrollment, 3rd and 7th day after enrollment. Results:There were no significant differences in demographic characteristics, clinical symptoms, vaccination rates of COVID-19 and laboratory tests between the two groups. There were no statistically significant differences in IL-6, CRP, SpO 2/FiO 2 ratio and ROXI between two groups at the time of enrollment. Compared with the group at the time of enrollment, SpO 2/FiO 2 ratio and ROXI in APP group increased significantly at the 3rd day after enrollment [SpO 2/FiO 2 ratio: 461.90 (457.10, 466.70) vs. 446.67 (437.14, 457.10), ROXI: 25.40 (23.33, 25.93) vs. 22.57 (21.86, 24.40), all P < 0.05], and the levels of IL-6 and CRP in control group were significantly increased [IL-6 (ng/L): 18.30 (6.50, 37.75) vs. 7.40 (5.10, 11.15), CRP (mg/L): 11.46 (2.11, 17.96) vs. 4.11 (1.72, 9.05), all P < 0.05]. At the 3rd day of enrollment, the levels of IL-6 and CRP in APP group were significantly lower than those in control group [IL-6 (ng/L): 7.35 (4.35, 12.80) vs. 18.30 (6.50, 37.75), CRP (mg/L): 4.52 (1.98, 9.66) vs. 11.46 (2.11, 17.96), all P < 0.05], while SpO 2/FiO 2 ratio and ROXI were significantly higher than those in control group [SpO 2/FiO 2 ratio: 461.90 (457.10, 466.70) vs. 446.67 (441.90, 459.52), ROXI: 25.40 (23.33, 25.93) vs. 23.31 (22.10, 24.66), all P < 0.05]. At the 7th day of enrollment,there were no significant differences in IL-6, CRP, SpO 2/FiO 2 ratio and ROXI between two groups. There were no severe cases in both groups. The time of nucleic acid negative conversion and length of hospital stay in APP group were significantly shorter than those in control group [10.0 (8.0, 12.0) days vs. 11.0 (9.0, 13.0) days, 12.0 (10.0, 14.0) days vs. 14.0 (12.0, 16.0) days, respectively, all P < 0.05]. The main adverse reaction during APP was back pain, and the incidence in APP group was slightly lower than that in control group, but the difference was not statistically significant [17.9% (17/95) vs. 26.5% (27/102), P = 0.149]. VAS score in control group was significantly higher than that in APP group [score: 2.5 (2.0, 4.0) vs. 2.0 (1.0, 3.0), P = 0.004]. Conclusions:In common COVID-19 patients caused by Omicron variant with high risk factors for progression to severe disease or decreased oxygen reserve capacity, early APP can shorten the time of nucleic acid negative conversion and the length of hospital stay, but its effect on preventing disease progression cannot be determined.
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RESUMEN La posición en decúbito prono es una estrategia usada para mejorar los niveles de oxigenación en pacientes con síndrome de dificultad respiratoria aguda. Actualmente se utiliza en la prevención del deterioro ventilatorio en complicaciones generadas por el virus SARS CoV-2. El objetivo de esta revisión es describir elementos actualizados concernientes a la posición en decúbito prono en pacientes infectados por el virus SARS CoV-2,con y sin ventilación artificial. Bajo esta primicia se realizó una pesquisa en Google Scholar, PudMed y SciELO regional con referencia a las investigaciones publicadas en los últimos 10 años. La búsqueda se realizó bajo los términos: ventilación en decúbito prono/técnica/ventajas/efecto, entre otras. Se seleccionaron 63 referencias que cumplieron los criterios de inclusión. La evidencia actual reporta una mejoría en la oxigenación y homogeneidad ventilatoria con el uso de la técnica. Con repercusión positiva en la disminución del grado de severidad, el reclutamiento pulmonar yla supervivencia. Fundamentalmente en pacientes con hipoxemia refractaria secundaria al distrés respiratorio agudo. El proceder representa una técnica sencilla y fácil de aprender, la cual puede ser utilizada también en pacientes sin apoyo ventilatorio invasivo. Esta ventaja posibilita evitar la intubación orotraqueal con los riesgos y complicaciones que conlleva.
ABSTRACT Prone position is a strategy used to improve oxygenation levels in patients with acute respiratory distress syndrome. It is currently used in the prevention of ventilatory deterioration in complications generated by the SARS CoV-2 virus. The objective of this review is to describe updated elements concerning the prone position in patients infected by SARS CoV-2 virus, with and without artificial ventilation. For this purpose, a search was carried out in Google Scholar, PudMed and regional SciELO with reference to research published in the last 10 years. The search was carried out under the terms: prone ventilation/technique/advantages/effect, among others. Sixty-three references that met the inclusion criteria were selected. Current evidence reports an improvement in oxygenation and ventilatory homogeneity with the use of the technique. With positive repercussions in the reduction of the degree of severity, pulmonary recruitment and survival. Fundamentally in patients with refractory hypoxemia secondary to acute respiratory distress. The procedure represents a simple and easy to learn technique, which can also be used in patients without invasive ventilatory support. This advantage makes it possible to avoid orotracheal intubation with its associated risks and complications.
RESUMO A posição prona é uma estratégia utilizada para melhorar os níveis de oxigenação em pacientes com síndrome do desconforto respiratório agudo. Atualmente é usado na prevenção da deterioração ventilatória em complicações geradas pelo vírus SARS CoV-2. O objetivo desta revisão é descrever elementos atualizados sobre a posição prona em pacientes infectados pelo vírus SARS CoV-2, com e sem ventilação artificial. Sob esse furo, foi realizada uma busca no Google Scholar, PudMed e SciELO regional com referência às pesquisas publicadas nos últimos 10 anos. A busca foi realizada nos termos: ventilação em prona / técnica / vantagens / efeito, entre outros. Foram selecionadas 63 referências que atenderam aos critérios de inclusão. Evidências atuais relatam melhora na oxigenação e homogeneidade ventilatória com o uso da técnica. Com impacto positivo na redução do grau de gravidade, recrutamento pulmonar e sobrevivência. Principalmente em pacientes com hipoxemia refratária secundária a dificuldade respiratória aguda. O procedimento representa uma técnica simples e de fácil aprendizado, que também pode ser utilizada em pacientes sem suporte ventilatório invasivo. Essa vantagem permite evitar a intubação orotraqueal com os riscos e complicações que ela acarreta.
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@#This is a case of a patient with Coronavirus (COVID-19) Pneumonia, with pneumonitis, complicated by transaminitis. Evidence for non-pharmacological approaches, such as prone positioning, and pharmacological management, such as Hydroxychloroquine and Azithromycin are discussed and evaluated. The sensitivity and specificity of COVID-19 swab tests, the association between COVID-19 infection and specific acute phase laboratory markers and current known evidence versus ongoing controversial debates revolving around the topic of COVID-19 infection have also been briefly explored.
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Aim of the study was to discuss effectiveness and outcome of Extra Corporeal Membrane Oxygenation (ECMO) therapy with prone positioning while on ECMO in a child with severe Acute Respiratory Distress Syndrome (ARDS). Veno-venous ECMO (VV-ECMO) and prone position on ECMO are relatively newer modalities of treatment in severe ARDS in pediatric age group and to our experience very few cases has been reported in paediatric age group. A 5 year old male child presented with fever with respiratory distress. He deteriorated in next 48 hrs leading to severe hypoxemia with ARDS following which he was put on conventional ventilation. In view of worsening critical lung parameters, veno-venous ECMO was initiated. Child had persistent hypoxemia inspite on high positive end expiaratory pressure (PEEP), adequate flow and adequate Post oxygenator PO2. Recirculation and other possible causes were excluded. Prone positioning (PP) was done for 8 hrs a day with chest physiotherapy while on ECMO. Patient showed considerable improvement in next few days and ECMO was weaned on day 7 and child was discharged on day 16 with good lung recovery. Although studies on VV-ECMO with PP has proven effectiveness in severe ARDS in adult population, overall studies in paediatric ARDS are very limited. Prone positioning on ECMO may decrease duration of ECMO support. Prone positioning on VV ECMO is safe and can be considered in Persistent hypoxemia with poor respiratory compliance.
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BACKGROUND: Data on the mechanical ventilation (MV) characteristics and radiologic features for the cases with H7N9-induced ARDS were stil lacking. METHODS: We describe the MV characteristics and radiologic features of adult patients with ARDS due to microbiologically confirmed H7N9 admitted to our ICU over a 3-month period. RESULTS: Eight patients (mean age 57.38±16.75; 5 male) were diagnosed with H7N9 in the first quarter of 2014. All developed respiratory failure complicated by acute respiratory distress syndrome (ARDS), which required MV in ICU. The baseline APACHE II and SOFA score was 11.77±6.32 and 7.71±3.12. The overall CT scores of the patients was 247.68±34.28 and the range of CT scores was 196.3–294.7. The average MV days was 14.63±6.14, and 4 patients required additional rescue therapies for refractory hypoxemia. Despite these measures, 3 patients died. CONCLUSION: In H7N9-infected patients with ARDS, low tidal volume strategy was the conventional mode. RM as one of rescue therapies to refractory hypoxemia in these patients with serious architectural distortion and high CT scores, which could cause further lung damage, may induce bad outcomes and requires serious consideration. Prone ventilation may improve mortality, and should be performed at the early stage of the disease, not as a rescue therapy.
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El síndrome de distrés respiratorio agudo (SDRA) es una insuficiencia respiratoria aguda secundaria a edema pulmonar inflamatorio, con aumento de permeabilidad capilar, inundación alveolar e hipoxemia profunda subsiguiente. El trastorno subyacente es la presencia de shunt intrapulmonar, característicamente refractario a las FIO2 elevadas. El SDRA se manifiesta dentro de la semana de la exposición a un factor de riesgo, habitualmente neumonía, shock, sepsis, aspiración de contenido gástrico, trauma, y otros. En la tomografía axial computarizada (TAC) la enfermedad frecuentemente aparece como no homogénea, con infiltrados gravitacionales coexistiendo con áreas normalmente aireadas y otras hiperinsufladas. La mortalidad es elevada (30-60%), especialmente en el SDRA secundario a shock séptico e injuria cerebral aguda. El tratamiento es el del factor de riesgo, junto con la ventilación mecánica que, inapropiadamente utilizada, puede también inducir injuria. El uso de un volumen corriente ≤ 6 ml/kg de peso corporal ideal como para mantener una presión de fin de inspiración (plateau) ≤ 30 cm H2O ("ventilación protectora") se asocia a una disminución de la mortalidad. Niveles de presión positiva de fin de espiración (PEEP) moderados-altos son frecuentemente necesarios para tratar la hipoxemia, pero no existe un único valor predeterminado o un método específico de titular PEEP para disminuir la mortalidad. Recientemente, la utilización precoz del decúbito prono en pacientes con PaO2/FIO2 ≤150 se asoció a un aumento de supervivencia. En la hipoxemia grave, pueden utilizarse adyuvantes de la ventilación mecánica como maniobras de reclutamiento, bloqueantes neuromusculares y oxigenación por membrana extracorpórea. La restricción en los fluidos resulta beneficiosa.
Acute respiratory distress syndrome (ARDS) is an acute respiratory failure produced by an inflammatory edema secondary to increased lung capillary permeability. This causes alveolar flooding and subsequently deep hypoxemia, with intrapulmonary shunt as its most important underlying mechanism. Characteristically, this alteration is unresponsive to high FIO2 and only reverses with end-expiratory positive pressure (PEEP). Pulmonary infiltrates on CXR and CT are the hallmark, together with decreased lung compliance. ARDS always occurs within a week of exposition to a precipitating factor; most frequently pneumonia, shock, aspiration of gastric contents, sepsis, and trauma. In CT scan, the disease is frequently inhomogeneous, with gravitational infiltrates coexisting with normal-density areas and also with hyperaerated parenchyma. Mortality is high (30-60%) especially in ARDS associated with septic shock and neurocritical diseases. The cornerstone of therapy lies in the treatment of the underlying cause and in the use mechanical ventilation which, if inappropriately administered, can lead to ventilator-induced lung injury. Tidal volume ≤ 6 ml/kg of ideal body weight to maintain an end-inspiratory (plateau) pressure ≤ 30 cm H2O ("protective ventilation") is the only variable consistently associated with decreased mortality. Moderate-to-high PEEP levels are frequently required to treat hypoxemia, yet no specific level or titration strategy has improved outcomes. Recently, the use of early prone positioning in patients with PaO2/FIO2 ≤ 150 was associated with increased survival. In severely hypoxemic patients, it may be necessary to use adjuvants of mechanical ventilation as recruitment maneuvers, pressure-controlled modes, neuromuscular blocking agents, and extracorporeal-membrane oxygenation. Fluid restriction appears beneficial.
Subject(s)
Humans , Respiratory Distress Syndrome, Newborn/therapy , Prognosis , Respiration, Artificial/methods , Respiratory Distress Syndrome, Newborn/etiology , Respiratory Distress Syndrome, Newborn/mortality , Respiratory Distress Syndrome, Newborn/diagnostic imaging , Extracorporeal Membrane Oxygenation , Tomography, X-Ray Computed , Risk Factors , Positive-Pressure Respiration/methods , Prone Position , Adrenal Cortex Hormones/therapeutic use , Patient Positioning/methods , Neuromuscular Blocking Agents/therapeutic useABSTRACT
Objective To investigate the effects of prone positioning on oxygenation and lung mechanics in neonates with mechanical ventilation.Methods Twenty cases of neonates,selected from Shanghai Children′s Hospital(from May 2008 to Feb 2009),were randomized to supine-prone position group (n=10) and prone-supine position group (n=10) using a crossover design.During 6h,these neonates were placed in the supine position for 3h then in the prone position for 3h or in reversed order.The ventilator parameters,results of arterial blood gas and the lung mechanics were recorded.Results Without obvious changes of ventilator parameters,PaO2 improved significantly when the incubated neonates were placed in the prone position for 3h compared to supine [(74.50±15.37)mm Hg vs (67.60±13.66)mm Hg,1mm Hg=0.133kPa,P<0.05).Similarly,oxygenation index of prone positioning for 3h was (201.86±55.96)mm Hg,which was higher than that of (184.38±63.58)mm Hg,the value of supine positioning for 3 h.There were significant differences (P<0.05).Our results showed that 60% (12/20) of the neonates responded to prone positioning,with oxysenation index increasing as much as 17mm Hg on average.Improvement in minute volume,tidal volume and dynamic compliance of the lung were achieved after prone positioning for 3h (P=0.011,0.020,0.045).The airway resistance did not decrease significantly (P=0.422),but the average decreased in the prone position.Conclusion Oxygenation and the lung mechanics are improved significantly in the neonates with prone position compared with supine position.