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Roshdy A. Respiratory Monitoring During Mechanical Ventilation: The Present and the Future. J Intensive Care Med 2023; 38:407-417. [PMID: 36734248 DOI: 10.1177/08850666231153371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The increased application of mechanical ventilation, the recognition of its harms and the interest in individualization raised the need for an effective monitoring. An increasing number of monitoring tools and modalities were introduced over the past 2 decades with growing insight into asynchrony, lung and chest wall mechanics, respiratory effort and drive. They should be used in a complementary rather than a standalone way. A sound strategy can guide a reduction in adverse effects like ventilator-induced lung injury, ventilator-induced diaphragm dysfunction, patient-ventilator asynchrony and helps early weaning from the ventilator. However, the diversity, complexity, lack of expertise, and associated cost make formulating the appropriate monitoring strategy a challenge for clinicians. Most often, a big amount of data is fed to the clinicians making interpretation difficult. Therefore, it is fundamental for intensivists to be aware of the principle, advantages, and limits of each tool. This analytic review includes a simplified narrative of the commonly used basic and advanced respiratory monitors along with their limits and future prospective.
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Affiliation(s)
- Ashraf Roshdy
- Critical Care Medicine Department, Faculty of Medicine, 54562Alexandria University, Alexandria, Egypt.,Critical Care Unit, North Middlesex University Hospital, London, UK
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Sanna GD, Canonico ME, Santoro C, Esposito R, Masia SL, Galderisi M, Parodi G, Nihoyannopoulos P. Echocardiographic Longitudinal Strain Analysis in Heart Failure: Real Usefulness for Clinical Management Beyond Diagnostic Value and Prognostic Correlations? A Comprehensive Review. Curr Heart Fail Rep 2021; 18:290-303. [PMID: 34398411 DOI: 10.1007/s11897-021-00530-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/14/2021] [Indexed: 02/07/2023]
Abstract
Heart failure (HF) is a highly prevalent clinical syndrome characterized by considerable phenotypic heterogeneity. The traditional classification based on left ventricular ejection fraction (LVEF) is widely accepted by the guidelines and represents the grounds for patient enrollment in clinical trials, even though it shows several limitations. Ejection fraction (EF) is affected by preload, afterload, and contractility, it being problematic to express LV function in several conditions, such as HF with preserved EF (HFpEF), valvular heart disease, and subclinical HF, and in athletes. Over the last two decades, developments in diagnostic techniques have provided useful tools to overcome EF limitations. Strain imaging analysis (particularly global longitudinal strain (GLS)) has emerged as a useful echocardiographic technique in patients with HF, as it is able to simultaneously supply information on both systolic and diastolic functions, depending on cardiac anatomy and physiology/pathophysiology. The use of GLS has proved helpful in terms of diagnostic performance and prognostic value in several HF studies. Universally accepted cutoff values and variability across vendors remain an area to be fully explored, hence limiting routine application of this technique in clinical practice. In the present review, the current role of GLS in the diagnosis and management of patients with HF will be discussed. We describe, by critical analysis of the pros and cons, various clinical settings in HF, and how the appropriate use and interpretation of GLS can provide important clues.
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Affiliation(s)
- Giuseppe D Sanna
- Clinical and Interventional Cardiology, Sassari University Hospital, Via Enrico de Nicola, 07100, Sassari, Italy.
| | - Mario E Canonico
- Clinical and Interventional Cardiology, Sassari University Hospital, Via Enrico de Nicola, 07100, Sassari, Italy.,Department of Advanced Biomedical Sciences, Federico II University Hospital, Naples, Italy
| | - Ciro Santoro
- Department of Advanced Biomedical Sciences, Federico II University Hospital, Naples, Italy
| | - Roberta Esposito
- Department of Advanced Biomedical Sciences, Federico II University Hospital, Naples, Italy
| | - Stefano L Masia
- Clinical and Interventional Cardiology, Sassari University Hospital, Via Enrico de Nicola, 07100, Sassari, Italy
| | - Maurizio Galderisi
- Department of Advanced Biomedical Sciences, Federico II University Hospital, Naples, Italy
| | - Guido Parodi
- Clinical and Interventional Cardiology, Sassari University Hospital, Via Enrico de Nicola, 07100, Sassari, Italy
| | - Petros Nihoyannopoulos
- Imperial College London (National Heart and Lung Institute), Hammersmith Hospital, Du Cane Road, London, W12 0NN, UK
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Zafiropoulos A, Asrress K, Redwood S, Gillon S, Walker D. CRITICAL CARE ECHO ROUNDS: Echo in cardiac arrest. Echo Res Pract 2014; 1:D15-21. [PMID: 26693304 PMCID: PMC4676486 DOI: 10.1530/erp-14-0052] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Accepted: 10/09/2014] [Indexed: 11/08/2022] Open
Abstract
UNLABELLED Management of medical cardiac arrest is challenging. The internationally agreed approach is highly protocolised with therapy and diagnosis occurring in parallel. Early identification of the precipitating cause increases the likelihood of favourable outcome. Echocardiography provides an invaluable diagnostic tool in this context. Acquisition of echo images can be challenging in cardiac arrest and should occur in a way that minimises disruption to cardiopulmonary resuscitation (CPR). In this article, the reversible causes of cardiac arrest are reviewed with associated echocardiography findings. CASE A 71-year-old patient underwent right upper lobectomy for lung adenocarcinoma. On the 2nd post-operative day, he developed respiratory failure with rising oxygen requirement and right middle and lower lobe collapse and consolidation on chest X-ray. He was commenced on high-flow oxygen therapy and antibiotics. His condition continued to deteriorate and on the 3rd post-operative day he was intubated and mechanically ventilated. Six hours after intubation, he became suddenly hypotensive with a blood pressure of 50 systolic and then lost cardiac output. ECG monitoring showed pulseless electrical activity. CPR was commenced and return of circulation occurred after injection of 1 mg of adrenaline. Focused echocardiography was performed, which demonstrated signs of massive pulmonary embolism. Thrombolytic therapy with tissue plasminogen activator was given and his condition stabilised.
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Affiliation(s)
| | - Kaleab Asrress
- Cardiology, St Thomas' Hospital, London, UK
- King's Health Partners, London, UK
| | - Simon Redwood
- King's College London, St Thomas' Hospital, London, UK
| | | | - David Walker
- Anaesthesia and Critical Care Medicine, University College Hospital, London, UK
- University College, London, UK
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