Lung Perfusion Assessment by Bedside Electrical Impedance Tomography in Critically Ill Patients

Xu, Miaomiao; He, Huaiwu; Long, Yun

doi:10.3389/fphys.2021.748724

Cited by 23 publications

(21 citation statements)

References 44 publications

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“…The change in impedance caused by the saline bolus reflects pulmonary arterial flow and is visualized. 4 A recently published prospective observational study demonstrated that using EIT to measure dead space percentage can accurately detect PE. This outperformed D-dimer with an area under the curve (AUC) measurement of 0.986 compared to D-dimer AUC of 0.502.…”

Section: Discussionmentioning

confidence: 99%

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Bedside Diagnosis of Pulmonary Embolism Using Electrical Impedance Tomography: A Case Report

Kuk¹,

Wright

2022

A&A Practice

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Electrical impedance tomography (EIT) is an emerging imaging modality that can be used to diagnose ventilatory and intrathoracic perfusion mismatches in unstable patients at the bedside. We present a case of a postoperative hypoxic patient in the intensive care unit (ICU) who was too unstable for transport for computed tomography (CT) imaging but was diagnosed and treated for a pulmonary embolism using EIT at the bedside. After the patient clinically improved, CT imaging confirmed the pulmonary embolism diagnosis. EIT is a promising diagnostic tool that may have great utility in ICUs, where it can be safely applied at the bedside.

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Section: Discussionmentioning

confidence: 99%

“…The change in impedance caused by the saline bolus reflects pulmonary arterial flow and is visualized. 4…”

Section: Discussionmentioning

confidence: 99%

Bedside Diagnosis of Pulmonary Embolism Using Electrical Impedance Tomography: A Case Report

Kuk¹,

Wright

2022

A&A Practice

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“…Moreover, the influence of the 10 mL 10% NaCl on hydro electrolyte balance was minimal. Several clinical studies have validated the safety of the method (12).…”

Section: Figurementioning

confidence: 99%

Electrical impedance tomography to aid in the identification of hypoxemia etiology: Massive atelectasis or pneumothorax? A case report

Zhou

He²,

Chi³

et al. 2022

Front. Med.

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BackgroundBedside ultrasound is often used to determine the etiology of hypoxaemia, but not always with definitive results. This case reports the application of electrical impedance tomography (EIT) and saline injection to determine the etiology of hypoxaemia in a complex case that could not be identified by bedside ultrasound. The determination of the etiology of hypoxaemia by EIT and saline injection, regional ventilation and perfusion information can be used as a new clinical diagnostic method.Case presentationA post-cardiac surgery patient under prolonged mechanical ventilation for lung emphysema developed sudden hypoxemia in the intensive care unit (ICU). A line pattern and lung sliding sign abolishment were found in the left lung, but there was no evidence of a lung point sign on bedside ultrasound. Hence, the initial diagnosis was considered to be a massive pneumothorax. To further define the etiology, EIT and saline bolus were used to assess regional ventilation and perfusion. A massive ventilation defect was found in the left lung, in which regional perfusion was maintained, resulting in an intrapulmonary shunt in the left lung. Finally, the conjecture of a pneumothorax was ruled out considering the massive atelectasis. After the diagnosis was clarified, hypoxaemia was corrected by restorative ventilation of the left lung after changing the patient's posture and enhancing sputum drainage with chest physiotherapy.ConclusionsThis was the clinical case involving EIT and saline bolus to establish the differential diagnosis and guide clinical decisions for patients with acute hypoxemia. This study highlighted that combination regional ventilation, EIT perfusion, and saline bolus provided helpful information for determining the etiology of hypoxemia. The results of this study contribute to the development of emergency patient management.

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“…The technique has proven to be useful in ventilator parameter optimization ( Bachmann et al, 2018 ). Various studies have reported that EIT can be used for recruitment maneuvers (RM), positive end-expiratory pressure (PEEP) titration, lung volume estimation, and pulmonary perfusion ( Zhao et al, 2010 ; Ambrósio et al, 2021 ; Xu et al, 2021 ). Since EIT was first available commercially in Europe in 2011, clinical research and case reports have been successively conducted all over the world ( Shono and Kotani, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Roles of electrical impedance tomography in lung transplantation

et al. 2022

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Lung transplantation is the preferred treatment method for patients with end-stage pulmonary disease. However, several factors hinder the progress of lung transplantation, including donor shortages, candidate selection, and various postoperative complications. Electrical impedance tomography (EIT) is a functional imaging tool that can be used to evaluate pulmonary ventilation and perfusion at the bedside. Among patients after lung transplantation, monitoring the graft’s pulmonary function is one of the most concerning issues. The feasible application of EIT in lung transplantation has been reported over the past few years, and this technique has gained increasing interest from multidisciplinary researchers. Nevertheless, physicians still lack knowledge concerning the potential applications of EIT in lung transplantation. We present an updated review of EIT in lung transplantation donors and recipients over the past few years, and discuss the potential use of ventilation- and perfusion-monitoring-based EIT in lung transplantation.

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Lung Perfusion Assessment by Bedside Electrical Impedance Tomography in Critically Ill Patients

Cited by 23 publications

References 44 publications

Bedside Diagnosis of Pulmonary Embolism Using Electrical Impedance Tomography: A Case Report

Bedside Diagnosis of Pulmonary Embolism Using Electrical Impedance Tomography: A Case Report

Electrical impedance tomography to aid in the identification of hypoxemia etiology: Massive atelectasis or pneumothorax? A case report

Roles of electrical impedance tomography in lung transplantation

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