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Wang D, Zhao P, Liu YX, Wang P, Gong ML, Qu GP, Fang XQ, Qian YP. Predicting ventilator-associated pneumonia in elderly patients requiring mechanical ventilation through the detection in tracheal aspirates. Postgrad Med 2023; 135:831-841. [PMID: 38032178 DOI: 10.1080/00325481.2023.2288559] [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: 02/28/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
OBJECTIVE In this study, we evaluated the clinical utility of tracheal aspirates α-amylase (AM), pepsin, and lipid-laden macrophage index (LLMI) in the early diagnosis of ventilator-associated pneumonia (VAP) in elderly patients on mechanical ventilation. METHODS Within 96 hours of tracheal intubation, tracheal aspirate specimens were collected from elderly patients on mechanical ventilation; AM, pepsin, and LLMI were detected, and we analyzed the potential of each index individually and in combination in diagnosing VAP. RESULTS Patients with VAP had significantly higher levels of AM, pepsin, and LLMI compared to those without VAP (P < 0.001), and there was a positive correlation between the number of pre-intubation risk factors of aspiration and the detection value of each index in patients with VAP (P < 0.001). The area under a receiver operating characteristic (ROC) curve (AUC) of AM, pepsin, and LLMI in diagnosis of VAP were 0.821 (95% CI:0.713-0.904), 0.802 (95% CI:0.693-0.892), and 0.621 (95% CI:0.583-0.824), the sensitivities were 0.8815, 0.7632, and 0.6973, the specificities were 0.8495, 0.8602, and 0.6291, and the cutoff values were 4,321.5 U/L, 126.61 ng/ml, and 173.5, respectively. The AUC for the combination of indexes in diagnosing VAP was 0.905 (95% CI:0.812-0.934), and the sensitivity and specificity were 0.9211 and 0.9332, respectively. In the tracheal aspirate specimens, the detection rate of AM ≥ cutoff was the highest, while it was the lowest for LLMI (P < 0.001). The detection rates of AM ≥ cutoff and pepsin ≥ cutoff were higher within 48 hours after intubation than within 48-96 hours after intubation (P < 0.001). In contrast, the detection rate of LLMI ≥ cutoff was higher within 48-96 hours after intubation than within 48 hours after intubation (P < 0.001). The risk factors for VAP identified using logistic multivariate analysis included pre-intubation aspiration risk factors (≥3), MDR bacteria growth in tracheal aspirates, and tracheal aspirate AM ≥ 4,321.5 U/L, pepsin ≥ 126.61 ng/ml, and LLMI ≥ 173.5. CONCLUSION The detection of AM, pepsin, and LLMI in tracheal aspirates has promising clinical utility as an early warning biomarker of VAP in elderly patients undergoing mechanical ventilation.
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Affiliation(s)
- Dan Wang
- Department of Respiratory and Critical Care Medicine, Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Peng Zhao
- Department of Health Management, Chinese PLA Air Force Healthcare Center for Special Services, Hangzhou, China
| | - Yan-Xin Liu
- Department of Respiratory and Critical Care Medicine, Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Peng Wang
- Department of Medical Oncology, Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Mei-Liang Gong
- Department of Laboratory Diagnosis, Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ge-Ping Qu
- Department of Respiratory and Critical Care Medicine, Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiang-Qun Fang
- Department of Respiratory and Critical Care Medicine, Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Ya-Ping Qian
- Department of Hematology and Oncology, 903 hospital of ChinesePLA, Hangzhou, China
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Mercado-Longoria R, Galindo-Galindo JO, Ataxca-Gonzalez MA, Colunga-Pedraza PR, Peña-Lozano SP, Llaca-Díaz JM, Rendón-Ramírez EJ. Thoracic ultrasound alone or in combination with tracheal amylase as a tool predictor of ventilator-associated pneumonia in neurocritical patients. Medicine (Baltimore) 2022; 101:e32149. [PMID: 36482529 PMCID: PMC9726279 DOI: 10.1097/md.0000000000032149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In this study, we aim to evaluate whether thoracic ultrasound (TUS) and tracheal amylase (TA) alone or in combination can predict the development of ventilator-associated pneumonia (VAP) in neurocritical patients. Consecutive adult patients with neurocritical disease with normal chest radiographs who required intensive care unit admission and mechanical ventilation between March 2015 and July 2018 were included. TUS and Amylase levels were measured during the first 24 hours and repeated 48 hours after orotracheal intubation. Forty-three patients with a median age of 34 years (17-82) were included. TUS had a sensitivity of 100% and specificity of 96.3% as a predictor of VAP within the first 48 hours when nonpattern A was observed. TA levels > 200 UI/L in the first 48 hours had a sensitivity of 87.5%, and specificity of 63% as a predictor of VAP. Moreover, no benefit of TUS plus TA compared to TUS alone as a predictor of VAP was found. The identification of abnormal TUS patterns in the first 48 hours of orotracheal intubation is a significant predictor of VAP in neurocritical patients.
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Affiliation(s)
- Roberto Mercado-Longoria
- Pulmonary and Critical Care Medicine Service, Hospital Universitario Dr. José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey, México
| | - Juan O. Galindo-Galindo
- Pulmonary and Critical Care Medicine Service, Hospital Universitario Dr. José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey, México
| | - Mario A. Ataxca-Gonzalez
- Pulmonary and Critical Care Medicine Service, Hospital Universitario Dr. José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey, México
| | - Perla R. Colunga-Pedraza
- Internal Medicine, Department, Hospital Universitario Dr. José Eleuterio González, Universidad Autonoma de Nuevo León, Monterrey, México
| | - Samantha P. Peña-Lozano
- Internal Medicine, Department, Hospital Universitario Dr. José Eleuterio González, Universidad Autonoma de Nuevo León, Monterrey, México
| | - Jorge M. Llaca-Díaz
- Clinical Pathology Department, Hospital Universitario, UANL, Monterrey, Nuevo León, México
| | - Erick J. Rendón-Ramírez
- Pulmonary and Critical Care Medicine Service, Hospital Universitario Dr. José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey, México
- * Correspondence: Erick J. Rendón-Ramírez, Pulmonary and Critical Care Medicine Service, Hospital Universitario Dr. José Eleuterio, González, Universidad Autónoma de Nuevo León, Ave. Madero y Ave. Gonzalitos s/n, Colonia Mitras Centro, C.P., Monterrey, N.L. 64460, México (e-mail: )
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Moussali A, Cauchois E, Carvelli J, Hraeich S, Bouzana F, Lesaux A, Boucekine M, Bichon A, Gainnier M, Fromonot J, Bourenne J. Salivary Alpha Amylase Bronchial Measure for Early Aspiration Pneumonia Diagnosis in Patients Treated With Therapeutic Hypothermia After Out-of-hospital Cardiac Arrest. Front Med (Lausanne) 2022; 9:880803. [PMID: 35646993 PMCID: PMC9137879 DOI: 10.3389/fmed.2022.880803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/19/2022] [Indexed: 11/15/2022] Open
Abstract
Background Aspiration pneumonia is the most common respiratory complication following out-of-hospital cardiac arrests (OHCA). Alpha-amylase (α-amylase) in pulmonary secretions is a biomarker of interest in detecting inhalation. The main goal of this study is to evaluate the performance of bronchoalveolar levels of α-amylase in early diagnosis of aspiration pneumonia, in patients admitted to intensive care unit (ICU) after OHCA. Methods This is a prospective single-center trial, led during 5 years (July 2015 to September 2020). We included patients admitted to ICU after OHCA. A protected specimen bronchial brushing and a mini-bronchoalveolar lavage (mini-BAL) were collected during the first 6 h after admission. Dosage of bronchial α-amylase and standard bacterial analysis were performed. Investigators confirmed pneumonia diagnosis using clinical, radiological, and microbiological criteria. Every patient underwent targeted temperature management. Results 88 patients were included. The 34% (30 patients) developed aspiration pneumonia within 5 days following admission. The 55% (17) of pneumonias occurred during the first 48 h. The 57% of the patients received a prophylactic antibiotic treatment on their admission day. ICU mortality was 50%. Median value of bronchial α-amylase did not differ whether patients had aspiration pneumonia (15 [0–94]) or not (3 [0–61], p = 0,157). Values were significantly different concerning early-onset pneumonia (within 48 h) [19 (7–297) vs. 3 (0–82), p = 0,047]. If one or more microorganisms were detected in the initial mini-BAL, median value of α-amylase was significantly higher [25 (2–230)] than in sterile cultures (2 [0–43], p = 0,007). With an 8.5 IU/L cut-point, sensitivity and specificity of α-amylase value for predicting aspiration pneumonia during the first 2 days were respectively 74 and 62%. True positive and negative rates were respectively 44 and 86%. The area under the ROC curve was 0,654 (CI 95%; 0,524–0,785). Mechanical ventilation duration, length of ICU stay, and mortality were similar in both groups. Conclusion In our study, dosage of bronchial α-amylase was not useful in predicting aspiration pneumonia within the first 5 days after ICU admission for OHCA. Performance in predicting early-onset pneumonia was moderate.
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Affiliation(s)
- Anis Moussali
- Réanimation des Urgences, Timone University Hospital APHM, Marseille, France
| | - Emi Cauchois
- Réanimation des Urgences, Timone University Hospital APHM, Marseille, France
| | - Julien Carvelli
- Réanimation des Urgences, Timone University Hospital APHM, Marseille, France
| | - Sami Hraeich
- Réanimation des Détresses Respiratoires et Infections Sévères, North University Hospital APHM, Marseille, France
- Aix-Marseille University, School of Medicine—La Timone, EA 3279: CEReSS—Health Service Research and Quality of Life Center, Marseille, France
| | - Fouad Bouzana
- Réanimation des Urgences, Timone University Hospital APHM, Marseille, France
| | - Audrey Lesaux
- Réanimation des Urgences, Timone University Hospital APHM, Marseille, France
| | - Mohamed Boucekine
- Aix-Marseille University, School of Medicine—La Timone, EA 3279: CEReSS—Health Service Research and Quality of Life Center, Marseille, France
- Department of Clinical Research and Innovation, Support Unit for Clinical Research and Economic Evaluation, Assistance Publique—Hôpitaux de Marseille, Marseille, France
| | - Amandine Bichon
- Réanimation des Urgences, Timone University Hospital APHM, Marseille, France
| | - Marc Gainnier
- Réanimation des Urgences, Timone University Hospital APHM, Marseille, France
- Aix Marseille University, INSERM, INRAE, C2VN, Marseille, France
| | - Julien Fromonot
- Aix Marseille University, INSERM, INRAE, C2VN, Marseille, France
- Laboratory of Biochemistry, Timone University Hospital APHM, Marseille, France
| | - Jeremy Bourenne
- Réanimation des Urgences, Timone University Hospital APHM, Marseille, France
- Aix Marseille University, INSERM, INRAE, C2VN, Marseille, France
- *Correspondence: Jeremy Bourenne
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Research on Effects of Oropharyngeal Aspiration on Incidence of Ventilator-Associated Pneumonia in Patients with Cerebral Hemorrhage in ICU. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:6433666. [PMID: 35087650 PMCID: PMC8789453 DOI: 10.1155/2022/6433666] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/22/2021] [Accepted: 12/29/2021] [Indexed: 01/31/2023]
Abstract
Cerebral hemorrhage is a kind of intracranial hemorrhage caused by nontraumatic vascular rupture of the cerebral parenchyma, which is a common cerebrovascular disease with a high disability rate and mortality. This study aimed to explore the effects of oropharyngeal aspiration in reducing ventilator-associated pneumonia in patients with cerebral hemorrhage in ICU. In this study, 96 patients with cerebral hemorrhage were selected as the subjects. They received surgical treatment, and then they were transferred into ICU of Fourth Affiliated Hospital of Harbin Medical University from December 2019 to March 2020. The patients were randomly divided into intervention group and control group, with 48 in each group. The intervention group received periodic oropharyngeal aspiration, while the control group received routine nursing measures. After the intervention, the incidence of ventilator-associated pneumonia and the positive rate of amylase α-trachea cannula specimens were recorded and compared between the two groups. After the intervention, the incidence of ventilator-associated pneumonia was 14.89% in the intervention group and 39.58% in the control group, with a statistically significant difference. And, the α-amylase positive rate, mechanical ventilation time, and ICU care duration of endotrachea cannula specimens in the intervention group were significantly lower than those in the control group. In conclusion, oropharyngeal aspiration can effectively reduce the incidence of ventilator-associated pneumonia after cerebral hemorrhage and shorten mechanical ventilation and ICU care duration. It promotes the rehabilitation of patients.
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Talbert S, Detrick CW, Emery K, Middleton A, Abomoelak B, Deb C, Mehta DI, Sole ML. Intubation Setting, Aspiration, and Ventilator-Associated Conditions. Am J Crit Care 2020; 29:371-378. [PMID: 32869069 DOI: 10.4037/ajcc2020129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND Patients experience endotracheal intubation in various settings with wide-ranging risks for postintubation complications such as aspiration and ventilator-associated conditions. OBJECTIVES To evaluate associations between intubation setting, presence of aspiration biomarkers, and clinical outcomes. METHODS This study is a subanalysis of data from the NO-ASPIRATE single-blinded randomized clinical trial. Data were prospectively collected for 513 adult patients intubated within 24 hours of enrollment. Patients with documented aspiration events at intubation were excluded. In the NO-ASPIRATE trial, intervention patients received enhanced oropharyngeal suctioning every 4 hours and control patients received sham suctioning. Tracheal specimens for α-amylase and pepsin tests were collected upon enrollment. Primary outcomes were ventilator hours, lengths of stay, and rates of ventilator-associated conditions. RESULTS Of the baseline tracheal specimens, 76.4% were positive for α-amylase and 33.1% were positive for pepsin. Proportions of positive tracheal α-amylase and pepsin tests did not differ significantly between intubation locations (study hospital, transfer from other hospital, or field intubation). No differences were found for ventilator hours or lengths of stay. Patients intubated at another hospital and transferred had significantly higher ventilator-associated condition rates than did those intubated at the study hospital (P = .02). Ventilator-associated condition rates did not differ significantly between patients intubated in the field and patients in other groups. CONCLUSIONS Higher ventilator-associated condition rates associated with interhospital transfer may be related to movement from bed, vehicle loading and unloading, and transport vehicle vibrations. Airway assessment and care may also be suboptimal in the transport environment.
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Affiliation(s)
- Steven Talbert
- Steven Talbert is an assistant clinical professor, Christine Wargo Detrick is a doctoral student, and Kimberly Emery is a doctoral candidate, University of Central Florida College of Nursing, Orlando, Florida
| | - Christine Wargo Detrick
- Steven Talbert is an assistant clinical professor, Christine Wargo Detrick is a doctoral student, and Kimberly Emery is a doctoral candidate, University of Central Florida College of Nursing, Orlando, Florida
| | - Kimberly Emery
- Steven Talbert is an assistant clinical professor, Christine Wargo Detrick is a doctoral student, and Kimberly Emery is a doctoral candidate, University of Central Florida College of Nursing, Orlando, Florida
| | - Aurea Middleton
- Aurea Middleton is a clinical research coordinator, Orlando Regional Medical Center, Orlando, Florida
| | - Bassam Abomoelak
- Bassam Abomoelak is a senior research associate and Chirajyoti Deb is a senior research scientist, Gastrointestinal Translational Laboratory, Arnold Palmer Hospital, Orlando Health, Orlando
| | - Chirajyoti Deb
- Chirajyoti Deb is a senior research scientist, Gastrointestinal Translational Laboratory, Arnold Palmer Hospital, Orlando Health, Orlando
| | - Devendra I. Mehta
- Devendra I. Mehta is an associate professor at Florida State University and director of the Gastrointestinal Translational Laboratory, Arnold Palmer Hospital for Children, Orlando Health
| | - Mary Lou Sole
- Mary Lou Sole is dean, Orlando Health Endowed Chair in Nursing, and University of Central Florida Pegasus Professor, University of Central Florida College of Nursing
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Abstract
Alpha-amylase has emerged as a biomarker of interest in detecting aspiration of oral secretions. In several studies, most ventilated patients have α-amylase values detected in pulmonary secretions. Values of α-amylase are high (as expected) in oral secretions and lowest in bronchoalveolar lavage samples. Around 5-7% of oral α-amylase is detectable in tracheal secretions. Once secretions are aspirated, the duration of detection of α-amylase in pulmonary secretions is unknown. Evidence varies on the relationship between α-amylase and clinical outcomes. Although detection of α-amylase in pulmonary secretions is useful to identify that aspiration has occurred, the lack of standardized reference values, the lack of knowledge regarding duration of detection following aspiration, and mixed findings related to clinical outcomes, limit its usefulness as a measurement tool. If α-amylase is to be used in research and/or clinical practice, additional data are needed to assist in interpretation and application of findings.
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7
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Sole ML, Talbert S, Yan X, Penoyer D, Mehta D, Bennett M, Emery KP, Middleton A, Deaton L, Abomoelak B, Deb C. Impact of deep oropharyngeal suctioning on microaspiration, ventilator events, and clinical outcomes: A randomized clinical trial. J Adv Nurs 2019; 75:3045-3057. [PMID: 31241194 PMCID: PMC8331062 DOI: 10.1111/jan.14142] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/18/2019] [Accepted: 06/13/2019] [Indexed: 12/12/2022]
Abstract
AIMS To evaluate a deep oropharyngeal suction intervention (NO-ASPIRATE) in intubated patients on microaspiration, ventilator-associated events and clinical outcomes. DESIGN Prospective, two-group, single-blind, randomized clinical trial. METHODS The study was conducted between 2014 - 2017 in 513 participants enroled within 24 hr of intubation and randomized into NO-ASPIRATE or usual care groups. Standard oral care was provided to all participants every 4 hr and deep oropharyngeal suctioning was added to the NO-ASPIRATE group. Oral and tracheal specimens were obtained to quantify α-amylase as an aspiration biomarker. RESULTS Data were analysed for 410 study completers enrolled at least 36 hr: NO-ASPIRATE (N = 206) and usual care (N = 204). Percent of tracheal specimens positive for α-amylase, mean tracheal α-amylase levels over time and ventilator-associated events were not different between groups. The NO-ASPIRATE group had a shorter hospital length of stay and a subgroup with moderate aspiration at baseline had significantly lower α-amylase levels across time. CONCLUSION Hospital length of stay was shorter in the NO-ASPIRATE group and a subgroup of intervention participants had lower α-amylase across time. Delivery of standardized oral care to all participants may have been an intervention itself and possibly associated with the lack of significant findings for most outcomes. IMPACT This trial compared usual care to oral care with a deep suctioning intervention on microaspiration and ventilator-associated events, as this has not been systematically studied. Further research on the usefulness of α-amylase as an aspiration biomarker and the role of oral suctioning, especially for certain populations, is indicated. TRIAL REGISTRATION NUMBER ClinicalTrials.gov: NCT02284178.
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Affiliation(s)
- Mary Lou Sole
- University of Central Florida College of Nursing, Orlando, Florida
- Center for Nursing Research and Advanced Nursing Practice, Orlando Health, Orlando, Florida
| | - Steven Talbert
- University of Central Florida College of Nursing, Orlando, Florida
| | - Xin Yan
- Department of Statistics, University of Central Florida College of Sciences, Orlando, Florida
| | - Daleen Penoyer
- Center for Nursing Research and Advanced Nursing Practice, Orlando Health, Orlando, Florida
| | - Devendra Mehta
- Pediatric Specialty Diagnostic Laboratory, Arnold Palmer Hospital, Orlando Health, Orlando, Florida
| | - Melody Bennett
- Center for Nursing Research and Advanced Nursing Practice, Orlando Health, Orlando, Florida
| | | | - Aurea Middleton
- Center for Nursing Research and Advanced Nursing Practice, Orlando Health, Orlando, Florida
| | - Lara Deaton
- Center for Nursing Research and Advanced Nursing Practice, Orlando Health, Orlando, Florida
| | - Bassam Abomoelak
- Pediatric Specialty Diagnostic Laboratory, Arnold Palmer Hospital, Orlando Health, Orlando, Florida
| | - Chirajyoti Deb
- Pediatric Specialty Diagnostic Laboratory, Arnold Palmer Hospital, Orlando Health, Orlando, Florida
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Rendon-Ramirez EJ, Colunga-Pedraza PR, Herrera-Guerra AS, Cazares-Rendón EC, González-Gutiérrez A, Ahumada-Pamanes C, Llaca-Díaz JM, Mercado-Longoria R. Tracheal amylase: a cheap way to predict ventilator associated pneumonia in patients with traumatic brain injury. Minerva Anestesiol 2019; 85:1249-1250. [PMID: 31238645 DOI: 10.23736/s0375-9393.19.13884-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Erick J Rendon-Ramirez
- Pulmonary and Critical Care Service, Dr. José Eleuterio González University Hospital, Monterrey, México
| | - Perla R Colunga-Pedraza
- Unit of Internal Medicine, Dr. José Eleuterio González University Hospital, Monterrey, México -
| | - Alexis S Herrera-Guerra
- Pulmonary and Critical Care Service, Dr. José Eleuterio González University Hospital, Monterrey, México
| | - Erika C Cazares-Rendón
- Faculty of Medicine, Autonomous University of Baja California, Unidad Valle de las Palmas, Tijuana, México
| | | | - Carolina Ahumada-Pamanes
- Pulmonary and Critical Care Service, Dr. José Eleuterio González University Hospital, Monterrey, México
| | - Jorge M Llaca-Díaz
- Department of Clinical Pathology, Dr. José Eleuterio González University Hospital, Monterrey, México
| | - Roberto Mercado-Longoria
- Pulmonary and Critical Care Service, Dr. José Eleuterio González University Hospital, Monterrey, México
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Sole ML, Talbert S, Yan X, Penoyer D, Mehta D, Bennett M, Middleton A, Emery KP. Nursing oral suction intervention to reduce aspiration and ventilator events (NO-ASPIRATE): A randomized clinical trial. J Adv Nurs 2019; 75:1108-1118. [PMID: 30507045 PMCID: PMC6568323 DOI: 10.1111/jan.13920] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/13/2018] [Accepted: 10/22/2018] [Indexed: 01/04/2023]
Abstract
AIM The primary aim of this study is to compare an oropharyngeal suction intervention versus usual care on microaspiration in intubated patients. Secondary aims are to evaluate the intervention on ventilator-associated condition rates, time to occurrence and compare tracheal-oral α-amylase ratios between groups. DESIGN Prospective randomized clinical trial. METHODS The study received funding from the National Institutes of Health in February 2014 and Institutional Review Board approval in July 2013. Over 4 years, a convenience sample of 600 orally intubated, ventilated adult patients will be enrolled within 24 hr of intubation. The target sample is 400 participants randomized to the two groups. The intervention involves enhanced suctioning of the mouth and oropharynx every 4 hr, while the usual care group receives a sham suctioning. The research team will deliver usual oral care to all patients every 4 hr and collect oral and tracheal specimens every 12 hr, to quantify α-amylase levels to detect aspiration of oral secretions. Study completers must be enrolled at least 36 hr (baseline and three paired samples). Outcomes include α-amylase levels, percent of positive specimens, ventilator-associated conditions, length of stay, ventilator hours, and discharge disposition. DISCUSSION Enrolment has closed, and data analysis has begun. Subgroup analyses emerged, contributing to future research knowledge. IMPACT Standardized interventions have reduced but do not address all risk factors associated with ventilator-associated conditions. This study provides the potential to reduce microaspiration and associated sequelae in critically ill, intubated patients.
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Affiliation(s)
- Mary Lou Sole
- University of Central Florida College of Nursing, Orlando, Florida
- Orlando Health, Orlando, Florida
| | - Steven Talbert
- University of Central Florida College of Nursing, Orlando, Florida
| | - Xin Yan
- University of Central Florida College of Sciences, Orlando, Florida
| | - Daleen Penoyer
- Center for Nursing Research and Advanced Nursing Practice, Orlando Health, Orlando, Florida
| | | | | | | | - Kimberly Paige Emery
- University of Central Florida College of Nursing, Orlando, Florida
- Orlando Health, Orlando, Florida
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