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Sricharoenchai T, Saisirivechakun P. Effects of dynamic versus static parameter-guided fluid resuscitation in patients with sepsis: A randomized controlled trial. F1000Res 2024; 13:528. [PMID: 39184243 PMCID: PMC11342037 DOI: 10.12688/f1000research.147875.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/23/2024] [Indexed: 08/27/2024] Open
Abstract
Background Fluid resuscitation is an essential component for sepsis treatment. Although several studies demonstrated that dynamic variables were more accurate than static variables for prediction of fluid responsiveness, fluid resuscitation guidance by dynamic variables is not standard for treatment. The objectives were to determine the effects of dynamic inferior vena cava (IVC)-guided versus (vs.) static central venous pressure (CVP)-guided fluid resuscitation in septic patients on mortality; and others, i.e., resuscitation targets, shock duration, fluid and vasopressor amount, invasive respiratory support, length of stay and adverse events. Methods A single-blind randomized controlled trial was conducted at Thammasat University Hospital between August 2016 and April 2020. Septic patients were stratified by acute physiologic and chronic health evaluation II (APACHE II) <25 or ≥25 and randomized by blocks of 2 and 4 to fluid resuscitation guidance by dynamic IVC or static CVP. Results Of 124 patients enrolled, 62 were randomized to each group, and one of each was excluded from mortality analysis. Baseline characteristics were comparable. The 30-day mortality rates between dynamic IVC vs. static CVP groups were not different (34.4% vs. 45.9%, p=0.196). Relative risk for 30-day mortality of dynamic IVC group was 0.8 (95%CI=0.5-1.2, p=0.201). Different outcomes were median (interquartile range) of shock duration (0.8 (0.4-1.6) vs. 1.5 (1.1-3.1) days, p=0.001) and norepinephrine (NE) dose (6.8 (3.9-17.8) vs. 16.1 (7.6-53.6) milligrams, p=0.008 and 0.1 (0.1-0.3) vs. 0.3 (0.1-0.8) milligram⋅kilogram -1, p=0.017). Others were not different. Conclusions Dynamic IVC-guided fluid resuscitation does not affect mortality of septic patients. However, this may reduce shock duration and NE dose, compared with static CVP guidance.
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Affiliation(s)
- Thiti Sricharoenchai
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Thammasat University, Pathum Thani, 12120, Thailand
| | - Pannarat Saisirivechakun
- Department of Medicine, Nakhon Pathom Hospital, Nakhon Pathom, 73000, Thailand
- Department of Medicine, Faculty of Medicine, Nakhon Pathom Hospital, Nakhon Pathom, 73000, Thailand
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Nikravan S, Bughrara N, Klick J, Lanspa MJ, Rapoport L, Díaz-Gomez J. An Echocardiographic Approach for the Management of Shock: The Subcostal to Apical, Respiratory to Parasternal-Cardiac to Respiratory, Aortic to Stomach Protocol. Semin Ultrasound CT MR 2024; 45:74-83. [PMID: 38065314 DOI: 10.1053/j.sult.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2024]
Abstract
Point of care ultrasound has become an integral part of critical care medicine, particularly for recognizing shock etiologies and guiding management. Most of the current ultrasonography guided shock protocols have been tailored towards a qualitative assessment of patients on presentation with shock. Unfortunately, the evolving nature of shock, particularly in the face of resuscitation and physiologic changes, demands a more sophisticated approach. This manuscript serves to present a comprehensive algorithm called the transthoracic Subcostal To Apical, Respiratory to paraSternal and transesophageal Cardiac to Respiratory, Aortic to StomacH ultrasonographic evaluations for the assessment of shock. This protocol is better suited for the critically ill patient in its ability to move beyond pattern recognition and focus on monitoring shock states from their presentation through their evolution. Not only is importance placed on the sequence of the exam, but also the identification of signs of chronic disease, the early incorporation of pulmonary evaluation, and the role for transesophageal imaging in critically ill patients with difficult surface imaging. Given the broad capabilities of bedside ultrasound, the Subcostal To Apical, Respiratory to paraSternal-Cardiac to Respiratory, Aortic to StomacH protocol serves as a multifaceted algorithm allowing for a nuanced and dynamic approach for the resuscitation of critically ill patients in shock.
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Affiliation(s)
| | | | - John Klick
- University of Vermont Medical Center, Burlington, VT
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Zhao X, Wang S, Yuan W, Wu J, Li C. A new method to evaluate carotid blood flow by continuous Doppler monitoring during cardiopulmonary resuscitation in a porcine model of cardiac arrest. Resuscitation 2024; 195:110092. [PMID: 38104797 DOI: 10.1016/j.resuscitation.2023.110092] [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: 07/06/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 12/19/2023]
Abstract
AIM We used a wearable carotid Doppler patch to study carotid blood flow patterns in a porcine model of cardiac arrest to identify return of spontaneous circulation (ROSC) and hemodynamics associated with different arrhythmias and the quality of compressions. METHODS Twenty Landrace pigs were used as models of cardiac arrest following a standard protocol. Carotid blood flow was monitored continuously using noninvasive ultrasound. Carotid spectral waveforms were captured during various arrhythmias and CPR. Typical carotid blood flow waveforms were recorded at the time of ROSC, and hemodynamic changes were compared with carotid blood flow parameters. RESULTS The results showed that the carotid blood flow waveforms varied with ventricular arrhythmia type. During CPR, compression depth correlated significantly with carotid maximal velocity (Vmax) (Spearman correlation coefficient (r) = 0.682, P < 0.001) and velocity-time integral (VTI) (r = 0.794, P < 0.001). Vmax and VTI demonstrated moderate predictive value for survival. The regular carotid blood flow pattern towards the brain was observed during ROSC, concurrent with compression waveforms. After ROSC, VTI and carotid pulse volume (cPV) showed similar trends as stroke volume (SV). The carotid minute volume (cMV) exhibited a similar trend as cardiac output (CO). CONCLUSIONS Carotid blood flow monitoring could provide valuable information about different arrhythmias as well as the quality of CPR. Carotid flow monitoring allows for timely and effective identification of ROSC. In addition, it may provide valuable hemodynamic information after ROSC.
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Affiliation(s)
- Xiaoli Zhao
- Department of Emergency Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Shuo Wang
- Department of Infectious Diseases (Fever Clinic), Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Wei Yuan
- Department of Emergency Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Junyuan Wu
- Department of Emergency Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Chunsheng Li
- Department of Emergency Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China.
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Kasal J, Musleh A, Hassani S, Chaffay B. Alternative Cardiac Point-of-Care Ultrasound Views. Semin Ultrasound CT MR 2024; 45:98-119. [PMID: 38056791 DOI: 10.1053/j.sult.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Point of care ultrasound (POCUS) and critical care echocardiography (CCE) is increasingly being used in intensive care units (ICUs). POCUS and CCE may be limited in some ICU patients because of inadequate information from standard echocardiographic windows. At the same time, data from POCUS and CCE in ICU may be critical to managing patients with cardiorespiratory failure. Alternative echocardiographic views done at the bedside by ICU practitioners may yield additional information or replace the missing data from the standard views. Information obtained from multiple echocardiographic views should be integrated and interpreted within the patient's other clinical information.
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Affiliation(s)
- Jan Kasal
- Critical Care Medicine Division, Department of Anesthesiology, Washington University, St. Louis, MO.
| | - Amjad Musleh
- Critical Care Medicine Division, Department of Anesthesiology, Washington University, St. Louis, MO; Department of Emergeny Medicine, Washington University, St. Louis, MO
| | - Shawn Hassani
- Critical Care Medicine Division, Department of Anesthesiology, Washington University, St. Louis, MO
| | - Brandon Chaffay
- Critical Care Medicine Division, Department of Anesthesiology, Washington University, St. Louis, MO
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Banothu KK, Sankar J, Pathak M, Kandasamy D, Gupta P, Kabra SK, Lodha R. Utility of Inferior Vena Cava Distensibility and Respiratory Variation in Peak Aortic Blood Flow Velocity to Predict Fluid Responsiveness in Children with Shock. Indian J Pediatr 2023; 90:1077-1082. [PMID: 37277686 DOI: 10.1007/s12098-023-04585-x] [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] [Received: 10/11/2022] [Accepted: 03/17/2023] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To evaluate the sensitivity and specificity of inferior vena cava (IVC) distensibility index (∆IVC) and respiratory variation in peak aortic blood flow velocity (∆Vpeak) to predict fluid responsiveness in ventilated children with shock and to find out the best cut-off values for predicting fluid responsiveness. METHODS In this prospective observational study, conducted in a pediatric ICU from January 2019 through May 2020, consecutive children aged 2 mo to 17 y with shock requiring fluid bolus were included. ∆IVC and ∆Vpeak were measured before and immediately after 10 ml/kg fluid bolus administration. ∆IVC and ∆Vpeak were compared between responders and non-responders, defined by a change in stroke volume index (SVI) of ≥10%. RESULTS Thirty-seven ventilated children [26 (70.4%) boys] with median age of 60 (36, 108) mo were included. The median (IQR) ∆IVC was 21.7% (14.3, 30.9) and the median (IQR) ΔVpeak was 11.3% (7.2, 15.2). Twenty-three (62%) children were fluid responsive. The median (IQR) ∆IVC was higher in responders compared to non-responders [26% (16.9, 36.5) vs. 17.2% (8.4, 21.9); p = 0.018] and mean (SD) ΔVpeak was higher in responders [13.9% (6.1) vs. 8.4% (3.9), p = 0.004]. The prediction of fluid responsiveness with ΔIVC [ROC curve area 0.73 (0.56-0.9), p = 0.01] and ΔVpeak [ROC curve area 0.78 (0.63-0.94), p = 0.002] was similar. The best cut-off of ∆IVC to predict fluid responsiveness was 23% (sensitivity, 60.8%; specificity, 85.7%) and ΔVpeak was 11.3% (sensitivity, 74%; specificity, 86%). CONCLUSIONS In this study, authors found that ∆IVC and ΔVpeak were good predictors of fluid responsiveness in ventilated children with shock.
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Affiliation(s)
- Kiran Kumar Banothu
- Department of Pediatrics, 3rd floor, Teaching Block, All India Institute of Medical Sciences, New Delhi, India
| | - Jhuma Sankar
- Department of Pediatrics, 3rd floor, Teaching Block, All India Institute of Medical Sciences, New Delhi, India.
| | - Mona Pathak
- Department of Research & Development, Kalinga Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | | | - Priyanka Gupta
- Department of Pediatrics, 3rd floor, Teaching Block, All India Institute of Medical Sciences, New Delhi, India
| | - Sushil Kumar Kabra
- Department of Pediatrics, 3rd floor, Teaching Block, All India Institute of Medical Sciences, New Delhi, India
| | - Rakesh Lodha
- Department of Pediatrics, 3rd floor, Teaching Block, All India Institute of Medical Sciences, New Delhi, India
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Wan JJ, Chen J, Xu L, Peng K, Xie J. PASSIVE LEG RAISING-INDUCED CHANGES IN PEAK VELOCITY VARIATION OF LEFT VENTRICULAR OUTFLOW TRACT TO PREDICT FLUID RESPONSIVENESS IN POSTOPERATIVE CRITICALLY ILL ELDERLY PATIENTS. Shock 2023; 60:18-23. [PMID: 37179250 DOI: 10.1097/shk.0000000000002143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
ABSTRACT Background : Accurate prediction of fluid responsiveness is important for postoperative critically ill elderly patients. The objective of this study was to evaluate the predictive values of peak velocity variation (ΔVpeak) and passive leg raising (PLR)-induced changes in ΔVpeak (ΔVpeak PLR ) of the left ventricular outflow tract to predict fluid responsiveness in postoperative critically ill elderly patients. Method : Seventy-two postoperative elderly patients with acute circulatory failure who were mechanically ventilated with sinus rhythm were enrolled in our study. Pulse pressure variation (PPV), ΔVpeak, and stroke volume were collected at baseline and after PLR. An increase of >10% in stroke volume after PLR defined fluid responsiveness. Receiver operating characteristic curves and gray zones were constructed to assess the ability of ΔVpeak and ΔVpeak PLR to predict fluid responsiveness. Results : Thirty-two patients were fluid responders. The area under the receiver operating characteristic curves (AUC) for baseline PPV and ΔVpeak to predict fluid responsiveness was 0.768 (95% confidence interval [CI], 0.653-0.859; P < 0.001) and 0.899 (95% CI, 0.805-0.958; P < 0.001) with gray zones of 7.63% to 12.66% that included 41 patients (56.9%) and 9.92% to 13.46% that included 28 patients (38.9%). ΔPPV PLR predicted fluid responsiveness with an AUC of 0.909 (95% CI, 0.818-0.964; P < 0.001), and the gray zone was 1.49% to 2.93% and included 20 patients (27.8%). ΔVpeak PLR predicted fluid responsiveness with an AUC of 0.944 (95% CI, 0.863-0.984; P < 0.001), and the gray zone was 1.48% to 2.46% and included six patients (8.3%). Conclusions : Passive leg raising-induced changes in peak velocity variation of blood flow in the left ventricular outflow tract accurately predicted fluid responsiveness with a small gray zone in postoperative critically ill elderly patients.
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Affiliation(s)
- Jing-Jie Wan
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jun Chen
- Intensive Care Unit of the Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Li Xu
- Intensive Care Unit of the Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ke Peng
- Department of Anesthesiology, the First Affiliated Hospital of Soochow University, Suzhou, China
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Ma Q, Ding C, Jiang F, Hu G, Wu J, Zhang X. RESPIRATORY VARIABILITY OF VALVULAR PEAK SYSTOLIC VELOCITY AS A NEW INDICATOR OF FLUID RESPONSIVENESS IN PATIENTS WITH SEPTIC SHOCK. Shock 2023; 60:11-17. [PMID: 37179247 PMCID: PMC10417229 DOI: 10.1097/shk.0000000000002142] [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: 03/09/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
ABSTRACT Objective: The aim of this study was to evaluate the reliability and feasibility of pulse Doppler measurements of peak velocity respiratory variability of mitral and tricuspid valve rings during systole as new dynamic indicators of fluid responsiveness in patients with septic shock. Methods: Transthoracic echocardiography (TTE) was performed to measure the respiratory variability of aortic velocity-time integral (∆VTI), respiratory variability of tricuspid annulus systolic peak velocity (∆RVS), respiratory variability of mitral annulus systolic peak velocity (∆LVS), and other related indicators. Fluid responsiveness was defined as a 10% increase in cardiac output after fluid expansion, assessed by TTE. Results: A total of 33 patients with septic shock were enrolled in this study. First, there was no significant difference in the population characteristics between the fluid responsiveness positive group (n = 17) and the fluid responsiveness negative group (n = 16) ( P > 0.05). Second, Pearson correlation test showed that ∆RVS, ∆LVS, and TAPSE with the relative increase in cardiac output after fluid expansion ( R = 0.55, P = 0.001; R = 0.40, P = 0.02; R = 0.36, P = 0.041). Third, multiple logistic regression analysis demonstrated that ∆RVS, ∆LVS, and TAPSE were significantly correlated with fluid responsiveness in patients with septic shock. Fourth, receiver operating characteristic (ROC) curve analysis revealed that ∆VTI, ∆LVS, ∆RVS, and TAPSE had good predictive ability for fluid responsiveness in patients with septic shock. The area under the curve (AUC) of ∆VTI, ∆LVS, ∆RVS, and TAPSE for predicting fluid responsiveness was 0.952, 0.802, 0.822, and 0.713, respectively. The sensitivity (Se) values were 1.00, 0.73, 0.81, and 0.83, whereas the specificity (Sp) values were 0.84, 0.91, 0.76, and 0.67, respectively. The optimal thresholds were 0.128, 0.129, 0.130, and 13.9 mm, respectively. Conclusion: Tissue Doppler ultrasound evaluation of respiratory variability of mitral and tricuspid annular peak systolic velocity could be a feasible and reliable method for the simple assessment of fluid responsiveness in patients with septic shock.
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Affiliation(s)
- Qiang Ma
- Department of Ultrasound, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Caiyun Ding
- Department of Physiology, Wannan Medical College, Wuhu, Anhui, China
| | - Feng Jiang
- Department of Ultrasound, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Guobin Hu
- Department of Ultrasound, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Jingyi Wu
- Department of Emergency Internal Medicine, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Xia Zhang
- Department of Ultrasound, The First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui, China
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Pérez-Manjarrez A, García-Cruz E, Gopar-Nieto R, Jiménez-Rodríguez GM, Lazcano-Díaz E, Rojas-Velasco G, Manzur-Sandoval D. Usefulness of the velocity-time integral of the left ventricular outflow tract variability index to predict fluid responsiveness in patients undergoing cardiac surgery. Echo Res Pract 2023; 10:9. [PMID: 37381028 DOI: 10.1186/s44156-023-00022-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/14/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Haemodynamic monitoring of patients after cardiac surgery using echocardiographic evaluation of fluid responsiveness is both challenging and increasingly popular. We evaluated fluid responsiveness in the first hours after surgery by determining the variability of the velocity-time integral of the left ventricular outflow tract (VTI-LVOT). METHODS We conducted a cross-sectional study of 50 consecutive adult patients who underwent cardiac surgery and in whom it was possible to obtain VTI-LVOT measurements. We then determined the variability and correlations with our pulse pressure variation (PPV) measurements to predict fluid responsiveness. RESULTS A strong positive correlation was seen between the VTI-LVOT variability index absolute values and PPV for predicting fluid responsiveness in the first hours after cardiac surgery. We also found that the VTI-LVOT variability index has high specificity and a high positive likelihood ratio compared with the gold standard using a cut-off point of ≥ 12%. CONCLUSIONS The VTI-LVOT variability index is a valuable tool for determining fluid responsiveness during the first 6 postoperative hours in patients undergoing cardiac surgery.
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Affiliation(s)
- Aldo Pérez-Manjarrez
- Cardiovascular Critical Care Unit, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Belisario Domínguez, Sección XVI, Tlalpan, P.O. Box 14080, Mexico City, Mexico
| | - Edgar García-Cruz
- Adult Congenital Heart Disease Unit, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Rodrigo Gopar-Nieto
- Coronary Care Unit, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | - Gian Manuel Jiménez-Rodríguez
- Cardiovascular Critical Care Unit, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Belisario Domínguez, Sección XVI, Tlalpan, P.O. Box 14080, Mexico City, Mexico
| | - Emmanuel Lazcano-Díaz
- Cardiovascular Critical Care Unit, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Belisario Domínguez, Sección XVI, Tlalpan, P.O. Box 14080, Mexico City, Mexico
| | - Gustavo Rojas-Velasco
- Cardiovascular Critical Care Unit, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Belisario Domínguez, Sección XVI, Tlalpan, P.O. Box 14080, Mexico City, Mexico
| | - Daniel Manzur-Sandoval
- Cardiovascular Critical Care Unit, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Belisario Domínguez, Sección XVI, Tlalpan, P.O. Box 14080, Mexico City, Mexico.
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Cheong I, Castro VO, Gómez RA, Merlo PM, Tamagnone FM. A modified subcostal view: a novel method for measuring the LVOT VTI. J Ultrasound 2023; 26:429-434. [PMID: 35449385 PMCID: PMC10247580 DOI: 10.1007/s40477-022-00671-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/21/2022] [Indexed: 01/31/2023] Open
Abstract
PURPOSE The velocity time integral (VTI) of the left ventricular outflow tract (LVOT) obtained in the apical view by echocardiography can be regarded as a surrogate for the stroke volume. In critically ill patients it is often difficult to obtain an appropriate apical view to assess the VTI. The subcostal view is more accessible, but while it allows a qualitative assessment of the heart, is not adequate for estimating a reliable LVOT VTI, given the inappropriate angle between the Doppler signal and the flow through the LVOT. We present a new modified subcostal view that allows a proper LVOT VTI measurement. METHODS This is a single-centre experimental, retrospective, and observational study using data from patients in a tertiary-care centre. We included adult patients admitted to the intensive care unit in the period from June 2020 to January 2022, who were evaluated by echocardiography and whose LVOT VTI was measured aligned with the Doppler signal in both the apical five-chamber view and the modified subcostal view. RESULTS A total of 30 patients were evaluated in the study period by ultrasonography. The Bland-Altman method analysis of the LVOT VTI measured in the apical view compared with that obtained in the subcostal view showed a bias of 0.8 (95% CI 0.39-1.21) with a 95% limit of agreement between - 1.35 (95% CI - 2.06 to - 0.64) and 2.96 (95% CI 2.25-3.67). The percentage error was calculated to be 23%. The Pearson correlation coefficient for the two forms of measurements showed an R value of 0.98 (95% CI 0.96-0.99). CONCLUSION The LVOT VTI measured in a modified subcostal view is useful for estimating the value of the LVOT VTI obtained in an apical view.
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Affiliation(s)
- Issac Cheong
- Department of Critical Care Medicine, Intensive Care Unit, CABA, Sanatorio De los Arcos, Juan B. Justo 909, Buenos Aires, Argentina.
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina.
| | - Victoria Otero Castro
- Department of Critical Care Medicine, Intensive Care Unit, CABA, Sanatorio De los Arcos, Juan B. Justo 909, Buenos Aires, Argentina
| | - Raúl Alejandro Gómez
- Department of Critical Care Medicine, Intensive Care Unit, CABA, Sanatorio De los Arcos, Juan B. Justo 909, Buenos Aires, Argentina
| | - Pablo Martín Merlo
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
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10
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Cheong I, Otero Castro V, Sosa FA, Tort Oribe B, Merlo PM, Tamagnone FM. Carotid flow as a surrogate of the left ventricular stroke volume. J Clin Monit Comput 2023; 37:661-667. [PMID: 36399216 DOI: 10.1007/s10877-022-00938-7] [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: 10/05/2022] [Accepted: 10/23/2022] [Indexed: 11/19/2022]
Abstract
Transthoracic echocardiography (TTE) is a fundamental tool for hemodynamic monitoring in critical patients. It allows evaluating the left ventricle's stroke volume based on the measurement of the velocity-time integral (VTI) of the left ventricle outflow tract (LVOT). However, in the intensive care unit obtaining adequate echocardiographic views may present a challenge. We propose to measure, as a surrogate of the stroke volume, the carotid flow with a novel technique. This is an observational, prospective, and simple blind study, conducted in the intensive care unit of Sanatorio de los Arcos and Hospital Aleman, in Buenos Aires, Argentina. We measured the carotid systodiastolic flow (CSD) VTI and the carotid systolic flow (CS) VTI at the level of the left supraclavicular fossa and we compared it with the LVOT VTI obtained by TTE. We evaluated 43 subjects. Spearman's correlation coefficient between LVOT VTI and CS VTI was 0.81 (95% CI 0.67-0.89) and between LVOT VTI and CSD VTI was 0.89 (95% CI 0.81-0.94). The Bland-Altman method analysis of the 5-chamber apical window LVOT VTI compared to the CSD VTI showed a bias of - 0.2 (95% CI - 0.82 to 0.43), with a concordance interval between - 4.2 (95% CI - 5.2 to - 3.1) and 3.8 cm (95% CI 2.7 to 4.9). The percentage error was 37.9%. Almost 100% of the values fell within the concordance limits, and no trend was observed in bias across the spectrum of mean variables. Although the CSD VTI could not be interchangeable with the LVOT VTI, it could be considered as its surrogate.
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Affiliation(s)
- Issac Cheong
- Department of Critical Care Medicine, Sanatorio de los Arcos, Buenos Aires, Argentina.
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina.
| | - Victoria Otero Castro
- Department of Critical Care Medicine, Sanatorio de los Arcos, Buenos Aires, Argentina
| | - Fernando Ariel Sosa
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
- Department of Critical Care Medicine, Hospital Aleman, Buenos Aires, Argentina
| | - Bárbara Tort Oribe
- Department of Critical Care Medicine, Hospital Aleman, Buenos Aires, Argentina
| | - Pablo Martín Merlo
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
- Hospital de Agudos Bernardino Rivadavia, Buenos Aires, Argentina
| | - Francisco Marcelo Tamagnone
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
- Hospital Militar Campo de Mayo, Buenos Aires, Argentina
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11
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Weber MD, Lim JKB, Ginsburg S, Conlon T, Nishisaki A. Translating Guidelines into Practical Practice: Point-of-Care Ultrasound for Pediatric Critical Care Clinicians. Crit Care Clin 2023; 39:385-406. [PMID: 36898781 DOI: 10.1016/j.ccc.2022.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Point-of-care ultrasound (POCUS) is now transitioning from an emerging technology to a standard of care for critically ill children. POCUS can provide immediate answers to clinical questions impacting management and outcomes within this fragile population. Recently published international guidelines specific to POCUS use in neonatal and pediatric critical care populations now complement previous Society of Critical Care Medicine guidelines. The authors review consensus statements within guidelines, identify important limitations to statements, and provide considerations for the successful implementation of POCUS in the pediatric critical care setting.
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Affiliation(s)
- Mark D Weber
- Division of Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Joel K B Lim
- Children's Intensive Care Unit, Department of Pediatric Subspecialties, KK Women's and Children's Hospital, Singapore
| | - Sarah Ginsburg
- Division of Critical Care Medicine, Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Thomas Conlon
- Division of Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Akira Nishisaki
- Division of Critical Care Medicine, Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA 19104, USA
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Contemporary Use of Ultrasonography in Acute Care Pediatrics. Indian J Pediatr 2023; 90:459-469. [PMID: 36897471 DOI: 10.1007/s12098-023-04475-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/03/2023] [Indexed: 03/11/2023]
Abstract
Use of ultrasonography by clinicians at the point of care has expanded widely and rapidly. Pediatric acute care providers now leverage this valuable tool to guide procedures, diagnose pathophysiologic processes, and inform time-sensitive decisions in sick and unstable children. However, the deployment of any new technology must be packaged with training, protocols, and safeguards to optimize safety for patients, providers, and institutions. As ultrasonography is increasingly incorporated into residency, fellowship, and even medical student curricula, it is important that educators and trainees are aware of the diversity of its clinical applications. This article aims to review the current state of point-of-care ultrasonography in acute care pediatrics, with an emphasis on the literature supporting the use of this important clinical tool.
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Prager R, Bowdridge J, Pratte M, Cheng J, McInnes MDF, Arntfield R. Indications, Clinical Impact, and Complications of Critical Care Transesophageal Echocardiography: A Scoping Review. J Intensive Care Med 2023; 38:245-272. [PMID: 35854414 PMCID: PMC9806486 DOI: 10.1177/08850666221115348] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Critical care transesophageal echocardiography (ccTEE) is an increasingly popular tool used by intensivists to characterize and manage hemodynamics at the bedside. Its usage appears to be driven by expanded diagnostic scope as well as the limitations of transthoracic echocardiography (TTE) - lack of acoustic windows, patient positioning, and competing clinical interests (eg, the need to perform chest compressions). The objectives of this scoping review were to determine the indications, clinical impact, and complications of ccTEE. METHODS MEDLINE, EMBASE, Cochrane, and six major conferences were searched without a time or language restriction on March 31st, 2021. Studies were included if they assessed TEE performed for adult critically ill patients by intensivists, emergency physicians, or anesthesiologists. Intraoperative or post-cardiac surgical TEE studies were excluded. Study demographics, indication for TEE, main results, and complications were extracted in duplicate. RESULTS Of the 4403 abstracts screened, 289 studies underwent full-text review, with 108 studies (6739 patients) included. Most studies were retrospective (66%), performed in academic centers (84%), in the intensive care unit (73%), and were observational (55%). The most common indications for ccTEE were hemodynamic instability, trauma, cardiac arrest, respiratory failure, and procedural guidance. Across multiple indications, ccTEE was reported to change the diagnosis in 52% to 78% of patients and change management in 32% to79% patients. During cardiac arrest, ccTEE identified the cause of arrest in 25% to 35% of cases. Complications of ccTEE included two cases of significant gastrointestinal bleeding requiring intervention, but no other major complications (death or esophageal perforation) reported. CONCLUSIONS The use of ccTEE has been described for the diagnosis and management of a broad range of clinical problems. Overall, ccTEE was commonly reported to offer additional diagnostic yield beyond TTE with a low observed complication rate. Additional high quality ccTEE studies will permit stronger conclusions and a more precise understanding of the trends observed in this scoping review.
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Affiliation(s)
- Ross Prager
- Division of Critical Care, Western University, Stn B. London, ON, Canada,Ross Prager, Critical Care Trauma Centre,
Victoria Hospital. Rm # D2-528 London Health Sciences Centre, 800 Commissioners
Rd. E, London, ON N6A 5W9, Canada.
| | - Joshua Bowdridge
- Department of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Michael Pratte
- Department of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Jason Cheng
- Division of Critical Care, Western University, Stn B. London, ON, Canada
| | - Matthew DF McInnes
- Department of Radiology, University of Ottawa, Ottawa, ON, Canada, Clinical Epidemiology Program, The Ottawa Hospital Research
Institute, Ottawa, ON, Canada
| | - Robert Arntfield
- Division of Critical Care, Western University, Stn B. London, ON, Canada
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Xie J, Wan J, Xu L, Zhang Y, Chen J. The Accuracy of Velocity-Time Integral Variation and Peak Velocity Variation of the Left Ventricular Outflow Tract in Predicting Fluid Responsiveness in Postoperative Patients Mechanically Ventilated at Low Tidal Volumes. J Cardiothorac Vasc Anesth 2023; 37:911-918. [PMID: 36931906 DOI: 10.1053/j.jvca.2023.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/16/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
OBJECTIVE To assess whether velocity-time integral (VTI) variation and peak velocity (Vpeak) variation of the left ventricular outflow tract (LVOT) accurately could predict fluid responsiveness in postoperative critically ill patients mechanically ventilated at low tidal volumes. DESIGN A prospective, single-center, observational study. SETTING A surgical intensive care unit at a tertiary hospital. PARTICIPANTS Sixty postoperative critically ill patients with deep sedation and mechanical ventilation (tidal volume <8 mL/kg) were included in this study. INTERVENTIONS Passive leg raising (PLR). MEASUREMENT AND MAIN RESULTS Pulse pressure variation (PPV), VTI variation, and Vpeak variation were measured at baseline and after PLR by transthoracic echocardiography. The fluid responsiveness was defined as an increase (>10%) in stroke volume after PLR. Thirty-two (53.3%) patients were fluid responders. The areas under the receiver operating characteristic (AUROC) curves for PPV were 0.797, and the gray zone was large and included 58.3% of patients. Both VTI variation and Vpeak variation predicted fluid responsiveness with the AUROC of 0.919 and 0.905; meanwhile, the best cutoff values were 12.51% (sensitivity of 71.9%; specificity of 75.0%) and 11.76% (sensitivity of 81.3%; specificity of 89.3%). The gray zones of VTI variation and Vpeak variation were from 7.41% to 11.88% (contained 23.3% patients) and from 9.96% to 13.10% (contained 28.3% patients). CONCLUSIONS In postoperative critically ill patients mechanically ventilated with tidal volume <8 mL/kg, the VTI variation and Vpeak variation of LVOT accurately could predict fluid responsiveness, and VTI variation showed more accuracy than Vpeak variation in predicting fluid responsiveness.
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Affiliation(s)
- Jin Xie
- Intensive Care Unit of the Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jingjie Wan
- Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Li Xu
- Intensive Care Unit of the Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yukun Zhang
- Intensive Care Unit of the Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jun Chen
- Intensive Care Unit of the Department of Anesthesiology, The First Affiliated Hospital of Soochow University, Suzhou, China.
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15
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Pan S, Lin C, Tsui BCH. Neonatal and paediatric point-of-care ultrasound review. Australas J Ultrasound Med 2023; 26:46-58. [PMID: 36960139 PMCID: PMC10030095 DOI: 10.1002/ajum.12322] [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: 03/24/2023] Open
Abstract
Purpose Point-of-care ultrasound (POCUS) examinations for children and newborns are different from POCUS exams for adults due to dissimilarities in size and body composition, as well as distinct surgical procedures and pathologies in the paediatric patient. This review describes the major paediatric POCUS exams and how to perform them and summarizes the current evidence-based perioperative applications of POCUS in paediatric and neonatal patients. Method Literature searches using PubMed and Google Scholar databases for the period from January 2000 to November 2021 that included MeSH headings of [ultrasonography] and [point of care systems] and keywords including "ultrasound" for studies involving children aged 0 to 18 years. Results Paediatric and neonatal POCUS exams can evaluate airway, gastric, pulmonary, cardiac, abdominal, vascular, and cerebral systems. Discussion POCUS is rapidly expanding in its utility and presence in the perioperative care of paediatric and neonatal patients as their anatomy and pathophysiology are uniquely suited for ultrasound imaging applications that extend beyond the standard adult POCUS exams. Conclusions Paediatric POCUS is a powerful adjunct that complements and augments clinical diagnostic evaluation and treatment.
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Affiliation(s)
- Stephanie Pan
- Department of Anesthesiology, Perioperative, and Pain MedicineStanford University School of Medicine300 Pasteur DrivePalo AltoCalifornia94305USA
| | - Carole Lin
- Department of Anesthesiology, Perioperative, and Pain MedicineStanford University School of Medicine300 Pasteur DrivePalo AltoCalifornia94305USA
| | - Ban C. H. Tsui
- Department of Anesthesiology, Perioperative, and Pain MedicineStanford University School of Medicine300 Pasteur DrivePalo AltoCalifornia94305USA
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16
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Garg S, Kapoor PM. POCUS and Fluid Responsiveness on Venoarterial ECMO. JOURNAL OF CARDIAC CRITICAL CARE TSS 2023. [DOI: 10.25259/jccc_4_2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
VA ECMO allows organ perfusion and oxygenation while awaiting myocardial recovery, cardiac transplantation, or long-term mechanical circulatory support. Diagnosis of hospital-acquired pneumonia (HAP) is a daily challenge for the clinician managing patients on venoarterial ECMO. Lung ultrasound (US) can be a valuable tool as the initial imaging modality for the diagnosis of pneumonia. Point-of-care US (POCUS) is broadly used in patients with ARDS. POCUS is recommended to be performed regularly in COVID-19 patients for respiratory failure management. In this review, we summarized the US characteristics of COVID-19 patients, mainly focusing on lung US and echocardiography. Point-of-care lung US (LUS) was demonstrated to be an effective tool in case of acute respiratory failure for ICU patients, community-acquired pneumonia, and ventilator-associated pneumonia. This review describes the usefulness of LUS in the early detection of HAP in cardiac critically ill patients under VA ECMO as well as assess its sonographic features.
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Affiliation(s)
- Sanchita Garg
- Department of Anesthesiolgy and Critical Care, Fortis Hospital, Mohali, Punjab, India,
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Pastore MC, Ilardi F, Stefanini A, Mandoli GE, Palermi S, Bandera F, Benfari G, Esposito R, Lisi M, Pasquini A, Santoro C, Valente S, D’Andrea A, Cameli M. Bedside Ultrasound for Hemodynamic Monitoring in Cardiac Intensive Care Unit. J Clin Med 2022; 11:jcm11247538. [PMID: 36556154 PMCID: PMC9785677 DOI: 10.3390/jcm11247538] [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: 11/13/2022] [Revised: 12/03/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Thanks to the advances in medical therapy and assist devices, the management of patients hospitalized in cardiac intensive care unit (CICU) is becoming increasingly challenging. In fact, Patients in the cardiac intensive care unit are frequently characterized by dynamic and variable diseases, which may evolve into several clinical phenotypes based on underlying etiology and its complexity. Therefore, the use of noninvasive tools in order to provide a personalized approach to these patients, according to their phenotype, may help to optimize the therapeutic strategies towards the underlying etiology. Echocardiography is the most reliable and feasible bedside method to assess cardiac function repeatedly, assisting clinicians not only in characterizing hemodynamic disorders, but also in helping to guide interventions and monitor response to therapies. Beyond basic echocardiographic parameters, its application has been expanded with the introduction of new tools such as lung ultrasound (LUS), the Venous Excess UltraSound (VexUS) grading system, and the assessment of pulmonary hypertension, which is fundamental to guide oxygen therapy. The aim of this review is to provide an overview on the current knowledge about the pathophysiology and echocardiographic evaluation of perfusion and congestion in patients in CICU, and to provide practical indications for the use of echocardiography across clinical phenotypes and new applications in CICU.
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Affiliation(s)
- Maria Concetta Pastore
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, 53100 Siena, Italy
- Correspondence: (M.C.P.); (M.C.); Tel.: +39-057-758-5377 (M.C.P.)
| | - Federica Ilardi
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80138 Naples, Italy
- Mediterranea Cardiocentro, 80122 Naples, Italy
| | - Andrea Stefanini
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, 53100 Siena, Italy
| | - Giulia Elena Mandoli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, 53100 Siena, Italy
| | - Stefano Palermi
- Public Health Department, University of Naples Federico II, 80131 Naples, Italy
| | - Francesco Bandera
- Cardiology University Department, Heart Failure Unit, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
- Department of Biomedical Sciences for Health, University of Milano, 20122 Milan, Italy
| | - Giovanni Benfari
- Section of Cardiology, Department of Medicine, University of Verona, 37129 Verona, Italy
| | - Roberta Esposito
- Department of Clinical Medicine and Surgery, Federico II University Hospital, 80131 Naples, Italy
| | - Matteo Lisi
- Department of Cardiovascular Disease—AUSL Romagna, Division of Cardiology, Ospedale S. Maria delle Croci, Viale Randi 5, 48121 Ravenna, Italy
| | - Annalisa Pasquini
- Department of Cardiovascular and Thoracic Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, 20123 Rome, Italy
| | - Ciro Santoro
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80138 Naples, Italy
| | - Serafina Valente
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, 53100 Siena, Italy
| | - Antonello D’Andrea
- Department of Cardiology, Umberto I Hospital, 84014 Nocera Inferiore, Italy
| | - Matteo Cameli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, 53100 Siena, Italy
- Correspondence: (M.C.P.); (M.C.); Tel.: +39-057-758-5377 (M.C.P.)
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Ródenas Monteagudo MÁ, Albero Roselló I, Del Mazo Carrasco Á, Carmona García P, Zarragoikoetxea Jauregui I. Update on the use of ultrasound in the diagnosis and monitoring of the critical patient. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2022; 69:567-577. [PMID: 36253286 DOI: 10.1016/j.redare.2022.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 01/07/2022] [Indexed: 06/16/2023]
Abstract
Hemodynamic and respiratory complications are the main causes of morbidity and mortality in in critical care units (CCU). Imaging techniques are a key tool in differential diagnosis and treatment. In the last decade, ultrasound has shown great potential for bedside diagnosis of respiratory disease, as well as for the hemodynamic assessment of critically ill patients. Ultrasound has proven to be a useful guide for identifying the type of shock, estimating cardiac output, guiding fluid therapy and vasoactive drugs, providing security in the performance of percutaneous techniques (thoracentesis, pericardiocentesis, evacuation of abscesses/hematomas), detecting dynamically in real time pulmonary atelectasis and its response to alveolar recruitment maneuvers, and predicting weaning failure from mechanical ventilation. Due to its dynamic nature, simple learning curve and absence of ionizing radiation, it has been incorporated as an essential tool in daily clinical practice in CCUs. The objective of this review is to offer a global vision of the role of ultrasound and its applications in the critically ill patient.
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19
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Beaubien-Souligny W, Trott T, Neyra JA. How to Determine Fluid Management Goals during Continuous Kidney Replacement Therapy in Patients with AKI: Focus on POCUS. KIDNEY360 2022; 3:1795-1806. [PMID: 36514727 PMCID: PMC9717662 DOI: 10.34067/kid.0002822022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 07/18/2022] [Indexed: 06/17/2023]
Abstract
The utilization of kidney replacement therapies (KRT) for fluid management of patients who are critically ill has significantly increased over the last years. Clinical studies have suggested that both fluid accumulation and high fluid removal rates are associated with adverse outcomes in the critically ill population receiving KRT. Importantly, the ideal indications and/or fluid management strategies that could favorably affect these patients are unknown; however, differentiating clinical scenarios in which effective fluid removal may provide benefit to the patient by avoiding congestive organ injury, compared with other settings in which this intervention may result in harm, is direly needed in the critical care nephrology field. In this review, we describe observational data related to fluid management with KRT, and examine the role of point-of-care ultrasonography as a potential tool that could provide physiologic insights to better individualize decisions related to fluid management through KRT.
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Affiliation(s)
- William Beaubien-Souligny
- Division of Nephrology, Department of Medicine, University of Montreal Health Center (CHUM), Montreal, Canada
| | - Terren Trott
- Division of Emergency Medicine and Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Kentucky, Lexington, Kentucky
| | - Javier A. Neyra
- Division of Nephrology, Department of Internal Medicine, University of Alabama at Birmingham, Birmingham, Alabama
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20
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Shen J, Dai S, Tao X, Chen X, Xu L. Corrected flow time and respirophasic variation in blood flow peak velocity of radial artery predict fluid responsiveness in gynecological surgical patients with mechanical ventilation. BMC Anesthesiol 2022; 22:299. [PMID: 36123625 PMCID: PMC9484168 DOI: 10.1186/s12871-022-01837-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 09/08/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recent evidence suggests that ultrasound measurements of carotid and brachial artery corrected flow time (FTc) and respirophasic variation in blood flow peak velocity (ΔVpeak) are valuable for predicting fluid responsiveness in mechanical ventilated patients. We performed the study to reveal the performance of ultrasonic measurements of radial artery FTc and ΔVpeak for predicting fluid responsiveness in mechanical ventilated patients undergoing gynecological surgery. METHODS A total of eighty mechanical ventilated patients were enrolled. Radial artery FTc and ΔVpeak, and non-invasive pulse pressure variation (PPV) were measured before and after fluid challenge. Fluid responsiveness was defined as an increase in stroke volume index (SVI) of 15% or more after the fluid challenge. Multivariate logistic regression analyses and receiver operating characteristic (ROC) curve were used to screen multivariate predictors of fluid responsiveness and identify the predictive abilitie of non-invasive PPV, ΔVpeak and FTc on fluid responsiveness. RESULTS Forty-four (55%) patients were fluid responders. Multivariate logistic regression analysis showed that radial artery FTc, ΔVpeak, and non-invasive PPV were the independent predictors of fluid responsiveness, with odds ratios of 1.152 [95% confidence interval (CI) 1.045 to 1.270], 0.581 (95% CI 0.403 to 0.839), and 0.361 (95% CI, 0.193 to 0.676), respectively. The area under the ROC curve of fluid responsiveness predicted by FTC was 0.802 (95% CI, 0.706-0.898), and ΔVpeak was 0.812 (95% CI, 0.091-0.286), which were comparable with non-invasive PPV (0.846, 95%CI, 0.070-0.238). The optimal cut-off values of FTc for fluid responsiveness was 336.6 ms (sensitivity of 75.3%; specificity of 75.9%), ΔVpeak was 14.2% (sensitivity of 88.2%; specificity of 67.9%). The grey zone for FTc was 313.5-336.6 ms and included 40 (50%) of the patients, ΔVpeak was 12.2-16.5% and included 37(46%) of the patients. CONCLUSIONS Ultrasound measurement of radial artery FTc and ΔVpeak are the feasible and reliable methods for predicting fluid responsiveness in mechanically ventilated patients. TRIAL REGISTRATION The trial was registered at the Chinese Clinical Trial Registry (ChiCTR)(www.chictr.org), registration number ChiCTR2000040941.
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Affiliation(s)
- Jianjun Shen
- Department of Anesthesiology, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shaobing Dai
- Department of Anesthesiology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Xia Tao
- Department of Ultrasound, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Xinzhong Chen
- Department of Anesthesiology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Lili Xu
- Department of Anesthesiology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China.
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Markarian T, Grau-Mercier L, Occelli C, Ajavon F, Claret PG, Coisy F, Bobbia X. Evaluation of a New Echocardiographic Tool for Cardiac Output Monitoring: An Experimental Study on A Controlled Hemorrhagic Shock Model in Anesthetized Piglets. J Clin Med 2022; 11:jcm11185420. [PMID: 36143066 PMCID: PMC9503332 DOI: 10.3390/jcm11185420] [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: 07/26/2022] [Revised: 08/18/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Cardiac output (CO) monitoring is recommended in patients with shock. The search for a reliable, rapid, and noninvasive tool is necessary for clinical practice. A new echocardiographic CO flow index (COF) is the automatic calculation of the sub-aortic VTI multiplied by the automatic calculation of the heart rate (HR). The primary objective of this study was to show the correlation between COF and CO measured by thermodilution (COth) in a controlled hemorrhagic shock model in anesthetized piglets. Secondary objectives were to show the correlation between COth and CO calculated from left outflow tract (LVOT) measurement and manual VTI (COman), and CO measured by LVOT measurement and VTIauto (COauto). Methods: Prospective interventional experimental study. In seventeen ventilated and anesthetized piglets, a state of hemorrhagic shock was induced, maintained, then resuscitated and stabilized. The gold standard for CO and stroke volume measurement was thermodilution (COth). Results: 191 measurements were performed. The correlation coefficients (r) between COth and COF, COman, and COauto were 0.73 [0.62; 0.81], 0.66 [0.56; 0.74], and 0.73 [0.63; 0.81], respectively. Conclusions: In this study, the COF appears to have a strong correlation to the COth. This automatic index, which takes into account the HR and does not require the measurement of LVOT, could be a rapidly obtained index in clinical practice.
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Affiliation(s)
- Thibaut Markarian
- Emergency Department, Timone University Hospital, Aix-Marseille University, 13005 Marseille, France
- Correspondence:
| | - Laura Grau-Mercier
- Emergency Department, Nîmes University Hospital, Montpellier University, UR UM 103 IMAGINE, 30029 Nîmes, France
| | - Céline Occelli
- Emergency Department, Pasteur 2 University Hospital, Nice Côte-d’Azur University, 06000 Nice, France
| | - Florian Ajavon
- Emergency Department, Nîmes University Hospital, Montpellier University, UR UM 103 IMAGINE, 30029 Nîmes, France
| | - Pierre-Géraud Claret
- Emergency Department, Nîmes University Hospital, Montpellier University, UR UM 103 IMAGINE, 30029 Nîmes, France
| | - Fabien Coisy
- Emergency Department, Nîmes University Hospital, Montpellier University, UR UM 103 IMAGINE, 30029 Nîmes, France
| | - Xavier Bobbia
- Emergency Department, Montpellier University Hospital, Montpellier University, UR UM 103 IMAGINE, 34295 Montpellier, France
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Gonzalez FA, Varudo R, Leote J, Martins C, Bacariza J, Fernandes A, Michard F. The automation of sub-aortic velocity time integral measurements by transthoracic echocardiography: clinical evaluation of an artificial intelligence-enabled tool in critically ill patients. Br J Anaesth 2022; 129:e116-e119. [PMID: 36031414 DOI: 10.1016/j.bja.2022.07.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
- Filipe A Gonzalez
- Intensive Care Department, Hospital Garcia de Orta, Almada, Portugal; Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal
| | - Rita Varudo
- Intensive Care Department, Hospital Garcia de Orta, Almada, Portugal
| | - João Leote
- Intensive Care Department, Hospital Garcia de Orta, Almada, Portugal
| | - Cristina Martins
- Intensive Care Department, Hospital Garcia de Orta, Almada, Portugal
| | - Jacobo Bacariza
- Intensive Care Department, Hospital Garcia de Orta, Almada, Portugal
| | - Antero Fernandes
- Intensive Care Department, Hospital Garcia de Orta, Almada, Portugal; Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal; Faculdade de Ciencias da Saude da Universidade da Beira Interior, Covilha, Portugal
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23
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Lanspa MJ, Fox SW, Sohn J, Dugar S, Klick JC, Diaz-Gomez J, Liu R, Panebianco N. Definitive Advantages of Point-of-Care Ultrasound: A Case Series. CASE (PHILADELPHIA, PA.) 2022; 6:293-298. [PMID: 36036052 PMCID: PMC9399626 DOI: 10.1016/j.case.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We describe 4 cases where POCUS changed or aided in diagnosis. POCUS often provides useful information in patients in shock. Serial POCUS can assess changes over time in the ICU.
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Affiliation(s)
- Michael J. Lanspa
- Critical Care Echocardiography Service, Intermountain Medical Center, Murray, Utah
- Correspondence: Michael J. Lanspa, MD, FASE, Intermountain Medical Center, Shock Trauma ICU, 5121 South Cottonwood Street, Salt Lake City, Utah, 84107
| | - Steven W. Fox
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
| | - Jaqueline Sohn
- Cardiovascular Anesthesia and Critical Care Medicine, Baylor St. Luke's Medical Center, Texas Heart Institute, Houston, Texas
| | - Siddharth Dugar
- Department of Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio
| | - John C. Klick
- Department of Anesthesiology, University of Vermont, Burlington, Vermont
| | - Jose Diaz-Gomez
- Cardiovascular Anesthesia and Critical Care Medicine, Baylor St. Luke's Medical Center, Texas Heart Institute, Houston, Texas
| | - Rachel Liu
- Department of Emergency Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Nova Panebianco
- Department of Emergency Medicine Ultrasound, University of Pennsylvania, Philadelphia, Pennsylvania
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Kim D, Son WG, Shin D, Kim J, Lee I. Effect of the respiratory rate on the pulse pressure variation induced by hemorrhage in anesthetized dogs. J Vet Sci 2022; 23:e68. [PMID: 36038189 PMCID: PMC9715388 DOI: 10.4142/jvs.22090] [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: 03/27/2022] [Revised: 07/08/2022] [Accepted: 07/13/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Studies on anesthetized dogs regarding pulse pressure variation (PPV) are increasing. The influence of respiratory rate (RR) on PPV, in mechanically ventilated dogs, has not been clearly identified. OBJECTIVES This study evaluated the influence of RR on PPV in mechanically ventilated healthy dogs after hemorrhage. METHODS Five healthy adult Beagle dogs were premedicated with intravenous (IV) acepromazine (0.01 mg/kg). Anesthesia was induced with alfaxalone (3 mg/kg IV) and maintained with isoflurane in 100% oxygen. The right dorsal pedal artery was cannulated with a 22-gauge catheter for blood removal, and the left dorsal pedal artery was cannulated and connected to a transducer system for arterial blood pressure monitoring. The PPV was automatically calculated using a multi-parameter monitor and recorded. Hemorrhage was induced by withdrawing 30% of blood (24 mL/kg) over 30 min. Mechanical ventilation was provided with a tidal volume of 10 mL/kg and a 1:2 inspiration-to-expiration ratio at an initial RR of 15 breaths/min (baseline). Thereafter, RR was changed to 20, 30, and 40 breaths/min according to the casting lots, and the PPV was recorded at each RR. After data collection, the blood was transfused at a rate of 10 mL/kg/h, and the PPV was recorded at the baseline ventilator setting. RESULTS The data of PPV were analyzed using the Friedman test followed by the Wilcoxon signed-rank test (p < 0.05). Hemorrhage significantly increased PPV from 11% to 25% at 15 breaths/min. An increase in RR significantly decreased PPV from 25 (baseline) to 17%, 10%, and 10% at 20, 30, and 40 breaths/min, respectively (all p < 0.05). CONCLUSIONS The PPV is a dynamic parameter that can predict a dog's hemorrhagic condition, but PPV can be decreased in dogs under high RR. Therefore, careful interpretation may be required when using the PPV parameter particularly in the dogs with hyperventilation.
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Affiliation(s)
- Dalhae Kim
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Won-Gyun Son
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Donghwi Shin
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Jiyoung Kim
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
| | - Inhyung Lee
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
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Abstract
The efficacy of ultrasound (US) in real-time differential diagnosis and guiding further treatment decisions has been well demonstrated in prearrest conditions and during resuscitation. Evidence is limited regarding the application of US in postresuscitation care. Most of the patients following resuscitation remain comatose, and the requirement for transportation to other examination rooms increases their risk of injury. US can be performed at the bedside with high accessibility and timeliness without radiation. This narrative review provides an overview of current evidence regarding the application of US in identifying the cause of cardiac arrest (CA), hemodynamic monitoring, and prognostication in postresuscitation care. For identifying the cause of CA, cardiac US is mainly used to detect regional wall motion abnormality. However, postarrest myocardial dysfunction would confound the sonographic findings that a combination of electrocardiograms and biomarkers besides the cardiac US could improve the positive predictive value of coronary artery disease. For hemodynamic monitoring, left ventricular outlet tract velocity time integral has the best performance in predicting fluid responsiveness in conjunction with the passive leg raising test. The RUSH protocol assists in determining the subtypes of shock with high sensitivity and specificity in hypovolemic, cardiogenic, or obstructive shock. Evidence regarding the application of US for prognostication is still limited, and further evaluation should be needed.
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Jacquet-Lagrèze M, Acker A, Hentzen J, Didier C, De Lamer S, Chardonnal L, Bouhamri N, Portran P, Schweizer R, Lilot M, Fellahi JL. Preload Dependence Fails to Predict Hemodynamic Instability During a Fluid Removal Challenge in Children. Pediatr Crit Care Med 2022; 23:296-305. [PMID: 35190504 DOI: 10.1097/pcc.0000000000002906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Fluid overload increases morbidity and mortality in PICU patients. Active fluid removal improves the prognosis but may worsen organ dysfunction. Preload dependence in adults does predict hemodynamic instability induced by a fluid removal challenge (FRC). We sought to investigate the diagnostic accuracy of dynamic and static markers of preload in predicting hemodynamic instability and reduction of stroke volume during an FRC in children. We followed the Standards for Reporting of Diagnostic Accuracy statement to design conduct and report this study. DESIGN Prospective noninterventional cohort study. SETTINGS From June 2017 to April 2019 in a pediatric cardiac ICU in a tertiary hospital. PATIENTS Patients 8 years old or younger, with symptoms of fluid overload after cardiac surgery, were studied. INTERVENTIONS We confirmed preload dependence by echocardiography before and during a calibrated abdominal compression test. We then performed a challenge to remove 10-mL/kg fluid in less than 120 minutes with an infusion of diuretics. Hemodynamic instability was defined as a decrease of 10% of mean arterial pressure. MEASUREMENT AND MAIN RESULTS We compared patients showing hemodynamic instability with patients remaining stable, and we built receiver operative characteristic (ROC) curves. Among 58 patients studied, 10 showed hemodynamic instability. The area under the ROC curve was 0.55 for the preload dependence test (95% CI, 0.34-0.75). Using a threshold of 10% increase in stroke volume index (SVi) during calibrated abdominal compression, the specificity was 0.30 (95% CI, 0.00-0.60) and the sensitivity was 0.77 (95% CI, 0.65-0.88). Mean arterial pressure variation and SVi variation were not correlated during fluid removal; r = 0.19; 95% CI -0.07 to 0.43; p = 0.139. CONCLUSIONS Preload dependence is not accurate to predict hemodynamic instability during an FRC. Our data do not support a reduction in intravascular volume being mainly responsible for the reduction in arterial pressure during an FRC in children.
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Affiliation(s)
- Matthias Jacquet-Lagrèze
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
- Laboratoire de recherche en Cardiovasculaire, Métabolisme, diabétologie et Nutrition (CarMeN), Inserm U1060, Lyon, France
- Université Claude Bernard Lyon 1, Faculté de médecine Lyon-Est, Lyon, France
| | - Amélie Acker
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
| | - Julie Hentzen
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
| | - Capucine Didier
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
| | - Sabine De Lamer
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
| | - Laurent Chardonnal
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
| | - Noureddine Bouhamri
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
| | - Philippe Portran
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
| | - Rémi Schweizer
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
| | - Marc Lilot
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
- Université Claude Bernard Lyon 1, Faculté de médecine Lyon-Est, Lyon, France
| | - Jean-Luc Fellahi
- Hospices Civils de Lyon, Hôpital Louis Pradel, Service d'Anesthésie-Réanimation, Lyon, France
- Laboratoire de recherche en Cardiovasculaire, Métabolisme, diabétologie et Nutrition (CarMeN), Inserm U1060, Lyon, France
- Université Claude Bernard Lyon 1, Faculté de médecine Lyon-Est, Lyon, France
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Soliman M, Magdi A, Fatthy M, El-Sherif R. The Validity of Carotid Doppler Peak Velocity and Inferior Vena Cava Collapsibility Index in Identifying the Fluid Responders in Mechanically Ventilated Septic Shock Patients. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Introduction: Measures of carotid artery flow or inferior vena cava diameter were recently shown to predict fluid responsiveness. Both are relatively superficial large vessels which can provide straightforward ultrasound evaluation & high-qualityimages.Methods: Our study is a prospective observational study on 30 mechanically ventilated septic shock patients in ICUto assess the fluid responsivenessby measuring carotid Doppler peak velocity&respiratory variation in inferior vena cava diameter against the increase in the cardiac index by echocardiographic calculations as a reference. All patients were given a fluid bolus 7 ml/ Kg crystalloid solution within 30 minutes, static and dynamic indices which include CVP, MAP, pulse pressure, difference between diameter of IVC during inspiration and expiration (ΔIVC- d) & carotid Doppler peak velocity in a single respiratory cycle (ΔCDPV) were measured before (T0) & after (T1). Vasoactive drugs infusion rate and ventilation settings did not changed during follow up. Patients were categorized either fluid responders “R” or non-responders “NR” according to an increase in cardiac output “CO” (increase in CO > 15 %.Results: Comparing responders & Non responders group we found a significant difference in Cardiac output measures,MAP & Δ CDPV pre & post fluid boluses as (5.26±4.42 L/min Vs. 10.62±5.73 L/min, 69.48±9.70 mmHg Vs. 84.90±10.36 mmHg&24.43±11.87%Vs33.22±11.00%) respectively with P-value (0.007, 0.05&0.01) respectively, on the other side , ΔD-IVC & Δ CVP pre & post fluid boluses didn’t show any statistical difference as (11.91±9.41 % Vs. 13.51±9.56 %, 5.86±5.22 cmH2O Vs 7.22±4.82 cmH2O) with P-value (0.87&0.68)respectively.Δ CDPV increase in response to increased intravascular volume in R group showed sensitivity 81%, specificity 66.7%. APACHE II, SOFA day 0,5 didn’t showed any difference between the R & NR group (16.05±3.23 Vs 18.44±3.81, 11.48±2.82Vs12.11±2.80& 12.95±3.68Vs12.56±3.97) respectively with P-value (0.164, 0.625 & 0.79) respectively. Conclusion: ΔCDPV was a more precise & even easier assessment tool with better sensitivity and specificity for evaluation of fluid responsiveness than the ΔD-IVC in patients with septic shock upon mechanicalventilation. Also, ΔCDPV has a high correlation with SVI increasing parameters assessed by echocardiography after fluid boluses. On the other hand and in comparison, CVP showed low accuracy in predicting fluid responsiveness.
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Assessing Fluid Intolerance with Doppler Ultrasonography: A Physiological Framework. Med Sci (Basel) 2022; 10:medsci10010012. [PMID: 35225945 PMCID: PMC8883898 DOI: 10.3390/medsci10010012] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 12/11/2022] Open
Abstract
Ultrasonography is becoming the favored hemodynamic monitoring utensil of emergentologists, anesthesiologists and intensivists. While the roles of ultrasound grow and evolve, many clinical applications of ultrasound stem from qualitative, image-based protocols, especially for diagnosing and managing circulatory failure. Often, these algorithms imply or suggest treatment. For example, intravenous fluids are opted for or against based upon ultrasonographic signs of preload and estimation of the left ventricular ejection fraction. Though appealing, image-based algorithms skirt some foundational tenets of cardiac physiology; namely, (1) the relationship between cardiac filling and stroke volume varies considerably in the critically ill, (2) the correlation between cardiac filling and total vascular volume is poor and (3) the ejection fraction is not purely an appraisal of cardiac function but rather a measure of coupling between the ventricle and the arterial load. Therefore, management decisions could be enhanced by quantitative approaches, enabled by Doppler ultrasonography. Both fluid ‘responsiveness’ and ‘tolerance’ are evaluated by Doppler ultrasound, but the physiological relationship between these constructs is nebulous. Accordingly, it is argued that the link between them is founded upon the Frank–Starling–Sarnoff relationship and that this framework helps direct future ultrasound protocols, explains seemingly discordant findings and steers new routes of enquiry.
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Huang H, Wu C, Shen Q, Fang Y, Xu H. Value of variation of end-tidal carbon dioxide for predicting fluid responsiveness during the passive leg raising test in patients with mechanical ventilation: a systematic review and meta-analysis. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2022; 26:20. [PMID: 35031070 PMCID: PMC8760720 DOI: 10.1186/s13054-022-03890-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/08/2022] [Indexed: 01/06/2023]
Abstract
Background The ability of end-tidal carbon dioxide (ΔEtCO2) for predicting fluid responsiveness has been extensively studied with conflicting results. This meta-analysis aimed to explore the value of ΔEtCO2 for predicting fluid responsiveness during the passive leg raising (PLR) test in patients with mechanical ventilation. Methods PubMed, Embase, and Cochrane Central Register of Controlled Trials were searched up to November 2021. The diagnostic odds ratio (DOR), sensitivity, and specificity were calculated. The summary receiver operating characteristic curve was estimated, and the area under the curve (AUROC) was calculated. Q test and I2 statistics were used for study heterogeneity and publication bias was assessed by Deeks’ funnel plot asymmetry test. We performed meta-regression analysis for heterogeneity exploration and sensitivity analysis for the publication bias. Results Overall, six studies including 298 patients were included in this review, of whom 149 (50%) were fluid responsive. The cutoff values of ΔEtCO2 in four studies was 5%, one was 5.8% and the other one was an absolute increase 2 mmHg. Heterogeneity between studies was assessed with an overall Q = 4.098, I2 = 51%, and P = 0.064. The pooled sensitivity and specificity for the overall population were 0.79 (95% CI 0.72–0.85) and 0.90 (95% CI 0.77–0.96), respectively. The DOR was 35 (95% CI 12–107). The pooled AUROC was 0.81 (95% CI 0.77–0.84). On meta-regression analysis, the number of patients was sources of heterogeneity. The sensitivity analysis showed that the pooled DOR ranged from 21 to 140 and the pooled AUC ranged from 0.92 to 0.96 when one study was omitted. Conclusions Though the limited number of studies included and study heterogeneity, our meta-analysis confirmed that the ΔEtCO2 performed moderately in predicting fluid responsiveness during the PLR test in patients with mechanical ventilation.
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Affiliation(s)
- Haijun Huang
- Department of Emergency, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310018, Zhejiang, China
| | - Chenxia Wu
- Department of Emergency, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310018, Zhejiang, China
| | - Qinkang Shen
- Department of Emergency, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310018, Zhejiang, China
| | - Yixin Fang
- Department of Emergency, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310018, Zhejiang, China
| | - Hua Xu
- Department of Emergency, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310018, Zhejiang, China.
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Soliman-Aboumarie H, Pastore MC, Galiatsou E, Gargani L, Pugliese NR, Mandoli GE, Valente S, Hurtado-Doce A, Lees N, Cameli M. Echocardiography in the intensive care unit: An essential tool for diagnosis, monitoring and guiding clinical decision-making. Physiol Int 2021. [PMID: 34825894 DOI: 10.1556/1647.2021.00055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 10/22/2021] [Indexed: 11/19/2022]
Abstract
In the last years, new trends on patient diagnosis for admission in cardiac intensive care unit (CICU) have been observed, shifting from acute myocardial infarction or acute heart failure to non-cardiac diseases such as sepsis, acute respiratory failure or acute kidney injury. Moreover, thanks to the advances in scientific knowledge and higher availability, there has been increasing use of positive pressure mechanical ventilation which has its implications on the heart. Therefore, there is a growing need for Cardiac intensivists to quickly, noninvasively and repeatedly evaluate various hemodynamic conditions and the response to therapy. Transthoracic critical care echocardiography (CCE) currently represents an essential tool in CICU, as it is used to evaluate biventricular function and complications following acute coronary syndromes, identify the mechanisms of circulatory failure, acute valvular pathologies, tailoring and titrating intravenous treatment or mechanical circulatory support. This could be completed with trans-esophageal echocardiography (TOE), advanced echocardiography and lung ultrasound to provide a thorough evaluation and monitoring of CICU patients. However, CCE could sometimes be challenging as the acquisition of good-quality images is limited by mechanical ventilation, suboptimal patient position or recent surgery with drains on the chest. Moreover, there are some technical caveats that one should bear in mind while performing CCE in order to optimize its use and avoid misleading findings. The aim of this review is to highlight the key role of CCE, providing an updated overview of its main applications and possible pitfalls in order to facilitate its use in CICU for clinical decision-making.
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Affiliation(s)
- Hatem Soliman-Aboumarie
- 1 Department of Anesthetics and Critical Care, Harefield Hospital, Royal Brompton and Harefield Hospitals, Guy's and St Thomas NHS Foundation Trust, London , United Kingdom
- 4 School of Cardiovascular Sciences and Medicine, King's College, London , United Kingdom
| | - Maria Concetta Pastore
- 2 Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Eftychia Galiatsou
- 1 Department of Anesthetics and Critical Care, Harefield Hospital, Royal Brompton and Harefield Hospitals, Guy's and St Thomas NHS Foundation Trust, London , United Kingdom
| | - Luna Gargani
- 3 Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | | | - Giulia Elena Mandoli
- 2 Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Serafina Valente
- 2 Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Ana Hurtado-Doce
- 1 Department of Anesthetics and Critical Care, Harefield Hospital, Royal Brompton and Harefield Hospitals, Guy's and St Thomas NHS Foundation Trust, London , United Kingdom
| | - Nicholas Lees
- 1 Department of Anesthetics and Critical Care, Harefield Hospital, Royal Brompton and Harefield Hospitals, Guy's and St Thomas NHS Foundation Trust, London , United Kingdom
| | - Matteo Cameli
- 2 Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
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Pace R, Lassola S, Miori S, Cammarota G, Barbariol F, Vetrugno L. Carotid vs aortic velocity time integral and peak velocity to predict fluid responsiveness in mechanically ventilated patients. A comparative study. Minerva Anestesiol 2021; 88:352-360. [PMID: 34761663 DOI: 10.23736/s0375-9393.21.16035-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The carotid artery velocity-time integral (CVTI) and the carotid Doppler peak velocity (cDPV), as well as measures of their variation induced by the respiratory cycle, have been proposed as fast and easy to obtain ultrasound measures for assessing fluid responsiveness in intensive care unit patients. To investigate this possibility, we conducted a prospective observational study in hemodynamically unstable patients under mechanical ventilation. METHODS From May 1 to December 31, 2019, we conducted a prospective observational study involving 50 hemodynamically unstable patients under mechanical ventilation. We obtained a total of 800 Doppler ultrasound measurements from the left common carotid artery and at the level of the aortic annulus in the apical five-chamber view. The two measurements were performed before and after a 7 mL/kg fluid challenge and within the first hour of the onset of hemodynamic instability. The maximum Doppler peak velocity, the minimum Doppler peak velocity, and the maximum and minimum VTI at both the aortic and carotid level were acquired. RESULTS Twenty-eight (56%) patients showed a ≥15% increase in AoVTI after the fluid challenge, and were therefore identified as "fluid responders". All Doppler measurements were always significantly greater (p <0.0001) in fluid responders in relation to both carotid and aortic parameters. Good agreement between the above-mentioned measurements was found: Cohen's kappa coefficient between the carotid and aortic ΔDPV was 0.76 (95% CI 0.58 - 0.94); and between the Carotid and Aortic ΔVTI it was 0.84 (95% CI 0.68 - 0.99). CONCLUSIONS CDPV was found to predict fluid responsiveness in unstable mechanically ventilated patients.
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Affiliation(s)
- Rocco Pace
- Intensive Care Unit, Department of Anesthesia and Intensive Care, Santa Chiara Hospital, APSS, Trento, Italy -
| | - Sergio Lassola
- Intensive Care Unit, Department of Anesthesia and Intensive Care, Santa Chiara Hospital, APSS, Trento, Italy
| | - Sara Miori
- Intensive Care Unit, Department of Anesthesia and Intensive Care, Santa Chiara Hospital, APSS, Trento, Italy
| | | | | | - Luigi Vetrugno
- University-Hospital of Udine, ASFC, Udine, Italy.,Department of Medicine, University of Udine, Udine, Italy
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Teixeira-Neto FJ, Valverde A. Clinical Application of the Fluid Challenge Approach in Goal-Directed Fluid Therapy: What Can We Learn From Human Studies? Front Vet Sci 2021; 8:701377. [PMID: 34414228 PMCID: PMC8368984 DOI: 10.3389/fvets.2021.701377] [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: 04/29/2021] [Accepted: 07/06/2021] [Indexed: 11/13/2022] Open
Abstract
Resuscitative fluid therapy aims to increase stroke volume (SV) and cardiac output (CO) and restore/improve tissue oxygen delivery in patients with circulatory failure. In individualized goal-directed fluid therapy (GDFT), fluids are titrated based on the assessment of responsiveness status (i.e., the ability of an individual to increase SV and CO in response to volume expansion). Fluid administration may increase venous return, SV and CO, but these effects may not be predictable in the clinical setting. The fluid challenge (FC) approach, which consists on the intravenous administration of small aliquots of fluids, over a relatively short period of time, to test if a patient has a preload reserve (i.e., the relative position on the Frank-Starling curve), has been used to guide fluid administration in critically ill humans. In responders to volume expansion (defined as individuals where SV or CO increases ≥10–15% from pre FC values), FC administration is repeated until the individual no longer presents a preload reserve (i.e., until increases in SV or CO are <10–15% from values preceding each FC) or until other signs of shock are resolved (e.g., hypotension). Even with the most recent technological developments, reliable and practical measurement of the response variable (SV or CO changes induced by a FC) has posed a challenge in GDFT. Among the methods used to evaluate fluid responsiveness in the human medical field, measurement of aortic flow velocity time integral by point-of-care echocardiography has been implemented as a surrogate of SV changes induced by a FC and seems a promising non-invasive tool to guide FC administration in animals with signs of circulatory failure. This narrative review discusses the development of GDFT based on the FC approach and the response variables used to assess fluid responsiveness status in humans and animals, aiming to open new perspectives on the application of this concept to the veterinary field.
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Affiliation(s)
- Francisco José Teixeira-Neto
- Departmento de Cirurgia Veterinária e Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, Brazil
| | - Alexander Valverde
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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Kimura A, Suehiro K, Juri T, Tanaka K, Mori T. Changes in corrected carotid flow time induced by recruitment maneuver predict fluid responsiveness in patients undergoing general anesthesia. J Clin Monit Comput 2021; 36:1069-1077. [PMID: 34191254 DOI: 10.1007/s10877-021-00736-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 06/25/2021] [Indexed: 02/01/2023]
Abstract
Non-invasive methods to assess patients' fluid responsiveness during lung-protective ventilation are needed. We hypothesized changes in the corrected carotid flow time induced by the recruitment maneuver predict fluid responsiveness under general anesthesia. Thirty patients undergoing general anesthesia in the supine position were prospectively enrolled. The study protocol was conducted when the patient was hemodynamically stable during surgery. Flow time was measured on Doppler images of the common carotid artery. Carotid flow time, heart rate, stroke volume, stroke volume variation, and pulse pressure variation were recorded before and after a recruitment maneuver at a continuous airway pressure of 30 cmH2O for 30 s, and before and after volume expansion with 250 mL for 10 min. Patients were defined as fluid responders if the increase in stroke volume was > 10% after volume expansion. Twenty patients (67%) were fluid responders. All Doppler images for carotid flow time were obtained within 30 s. Changes in the corrected flow time accurately predicted fluid responsiveness (area under the curve: 0.82, 95% confidence interval [CI] 0.64-0.94, p = 0.002). The optimal threshold for changes in the corrected flow time was - 11.7% with a sensitivity of 95.0% (95% CI 75.1-99.9%) and a specificity of 80.0% (95% CI 44.4-97.5%). The gray-zone of changes in the corrected flow time was from - 25.1 to - 12.2% and included 12 patients (40%). Changes in the corrected carotid flow time were a useful, technically easy-to-perform, and non-invasive method to predict fluid responsiveness without a need for hemodynamic monitoring or arterial cannulation.
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Affiliation(s)
- Aya Kimura
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka City, Osaka, 545-8586, Japan
| | - Koichi Suehiro
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka City, Osaka, 545-8586, Japan.
| | - Takashi Juri
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka City, Osaka, 545-8586, Japan
| | - Katsuaki Tanaka
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka City, Osaka, 545-8586, Japan
| | - Takashi Mori
- Department of Anesthesiology, Osaka City University Graduate School of Medicine, 1-5-7 Asahimachi, Abeno-ku, Osaka City, Osaka, 545-8586, Japan
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Lee KY, Yoo YC, Cho JS, Lee W, Kim JY, Kim MH. The Effect of Intraoperative Fluid Management According to Stroke Volume Variation on Postoperative Bowel Function Recovery in Colorectal Cancer Surgery. J Clin Med 2021; 10:jcm10091857. [PMID: 33922880 PMCID: PMC8123187 DOI: 10.3390/jcm10091857] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/17/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022] Open
Abstract
Stroke volume variation (SVV) has been used to predict fluid responsiveness; however, it remains unclear whether goal-directed fluid therapy using SVV contributes to bowel function recovery in abdominal surgery. This prospective randomized controlled trial aimed to compare bowel movement recovery in patients undergoing colon resection surgery between groups using traditional or SVV-based methods for intravenous fluid management. We collected data between March 2015 and July 2017. Bowel function recovery was analyzed based on the gas-passing time, sips of water time, and soft diet (SD) time. Finally, we analyzed data from 60 patients. There was no significant between-group difference in the patients’ characteristics. Compared with the control group (n = 30), the SVV group (n = 30) had a significantly higher colloid volume and lower crystalloid volume. Moreover, the gas-passing time (77.8 vs. 85.3 h, p = 0.034) and SD time (67.6 vs. 85.1 h, p < 0.001) were significantly faster in the SVV group than in the control group. Compared with the control group, the SVV group showed significantly lower scores of pain on a numeric rating scale and morphine equivalent doses during post-anesthetic care, at 24 postoperative hours, and at 48 postoperative hours. Our findings suggested that, compared with the control group, the SVV group showed a faster postoperative SD time, reduced acute postoperative pain intensity, and lower rescue analgesics. Therefore, SVV-based optimal fluid management is expected to potentially contribute to postoperative bowel function recovery in patients undergoing colon resection surgery.
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Affiliation(s)
- Ki-Young Lee
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea; (K.-Y.L.); (Y.-C.Y.); (J.-S.C.); (W.L.); (J.-Y.K.)
| | - Young-Chul Yoo
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea; (K.-Y.L.); (Y.-C.Y.); (J.-S.C.); (W.L.); (J.-Y.K.)
| | - Jin-Sun Cho
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea; (K.-Y.L.); (Y.-C.Y.); (J.-S.C.); (W.L.); (J.-Y.K.)
| | - Wootaek Lee
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea; (K.-Y.L.); (Y.-C.Y.); (J.-S.C.); (W.L.); (J.-Y.K.)
- Department of Anesthesiology and Pain Medicine, Gangnam Severance Hospital, 211 Eonju-ro, Gangnam-gu, Seoul 06273, Korea
| | - Ji-Young Kim
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea; (K.-Y.L.); (Y.-C.Y.); (J.-S.C.); (W.L.); (J.-Y.K.)
- Department of Anesthesiology and Pain Medicine, Gangnam Severance Hospital, 211 Eonju-ro, Gangnam-gu, Seoul 06273, Korea
| | - Myoung-Hwa Kim
- Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea; (K.-Y.L.); (Y.-C.Y.); (J.-S.C.); (W.L.); (J.-Y.K.)
- Department of Anesthesiology and Pain Medicine, Gangnam Severance Hospital, 211 Eonju-ro, Gangnam-gu, Seoul 06273, Korea
- Correspondence: ; Tel.: +82-2-2019-6095; Fax: +82-2-312-7185
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García-de-Acilu M, Pacheco A, Santafé M, Ramos FJ, Ruiz-Rodríguez JC, Ferrer R, Roca O. Pleth variability index may predict preload responsiveness in patients treated with nasal high flow: a physiological study. J Appl Physiol (1985) 2021; 130:1660-1667. [PMID: 33856256 DOI: 10.1152/japplphysiol.00614.2020] [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: 11/22/2022] Open
Abstract
The purpose of this study was to determine whether the plethysmographic variability index ("PVi") can predict preload responsiveness in patients with nasal high flow (NHF) (≥30 L/min) with any sign of hypoperfusion. "Preload responsiveness" was defined as a ≥10% increase in stroke volume (SV), measured by transthoracic echocardiography, after passive leg raising. SV and PVi were reassessed in preload responders after receiving a 250-mL fluid challenge. Twenty patients were included and 12 patients (60%) were preload responders. Responders showed higher baseline mean PVi (24% vs. 13%; P = 0.001) and higher mean PVi variation (ΔPVi) after passive leg raising (6.8% vs. -1.7%; P < 0.001). No differences between mean ΔPVi after passive leg raising and mean ΔPVi after fluid challenge were observed (6.8% vs. 7.4%; P = 0.24); and both values were strongly correlated (r = 0.84; P < 0.001). Baseline PVi and ΔPVi after passive leg raising showed excellent diagnostic accuracy identifying preload responders (AUROC 0.92 and 1.00, respectively). Baseline PVi ≥ 16% had a sensitivity of 91.7% and a specificity of 87.5% for detecting preload responders. Similarly, ΔPVi after passive leg raising ≥2% had a 100% of both sensitivity and specificity. Thus, PVi might predict "preload responsiveness" in patients treated with NHF, suggesting that it may guide fluid administration in these patients.NEW & NOTEWORTHY This is the first study that analyzes the use of noninvasive plethysmographic variability index (PVi) for preload assessment in patients treated with nasal high flow (NHF). Its results showed that PVi might identify preload responders. Therefore, PVi may be used in the day-to-day clinical decision-making process in critically ill patients treated with NHF, helping to provide adequate resuscitation volume.
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Affiliation(s)
- Marina García-de-Acilu
- Servei de Medicina Intensiva, Hospital Universitari Vall d'Hebron, Institut de Recerca Vall d'Hebron, Barcelona, Spain.,Departament de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Andrés Pacheco
- Servei de Medicina Intensiva, Hospital Universitari Vall d'Hebron, Institut de Recerca Vall d'Hebron, Barcelona, Spain
| | - Manel Santafé
- Servei de Medicina Intensiva, Hospital Universitari Vall d'Hebron, Institut de Recerca Vall d'Hebron, Barcelona, Spain
| | - Francisco-Javier Ramos
- Servei de Medicina Intensiva, Hospital Universitari Vall d'Hebron, Institut de Recerca Vall d'Hebron, Barcelona, Spain
| | - Juan C Ruiz-Rodríguez
- Servei de Medicina Intensiva, Hospital Universitari Vall d'Hebron, Institut de Recerca Vall d'Hebron, Barcelona, Spain
| | - Ricard Ferrer
- Servei de Medicina Intensiva, Hospital Universitari Vall d'Hebron, Institut de Recerca Vall d'Hebron, Barcelona, Spain.,Ciber Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
| | - Oriol Roca
- Servei de Medicina Intensiva, Hospital Universitari Vall d'Hebron, Institut de Recerca Vall d'Hebron, Barcelona, Spain.,Ciber Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
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Goal-directed Fluid Therapy Versus Conventional Fluid Therapy During Craniotomy and Clipping of Cerebral Aneurysm: A Prospective Randomized Controlled Trial. J Neurosurg Anesthesiol 2021; 34:407-414. [PMID: 33835084 DOI: 10.1097/ana.0000000000000769] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/01/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Fluid imbalance is common after aneurysmal subarachnoid hemorrhage and negatively impacts clinical outcomes. We compared intraoperative goal-directed fluid therapy (GDFT) using left ventricular outflow tract velocity time integral (LVOT-VTI) measured by transesophageal echocardiography with central venous pressure (CVP)-guided fluid therapy during aneurysm clipping in aneurysmal subarachnoid hemorrhage patients. METHODS Fifty adults scheduled for urgent craniotomy for aneurysm clipping were randomly allocated to 2 groups: group G (n=25) received GDFT guided by LVOT-VTI and group C (n=25) received CVP-guided fluid management. The primary outcome was intraoperative mean arterial pressure (MAP). Secondary outcomes included volume of fluid administered and several other intraoperative and postoperative variables, including neurological outcome at hospital discharge and at 30 and 90 days. RESULTS There was no difference in MAP between the 2 groups despite patients in group G receiving lower volumes of fluid compared with patients in group C (2503.6±534.3 vs. 3732.8±676.5 mL, respectively; P<0.0001). Heart rate and diastolic blood pressure were also comparable between groups, whereas systolic blood pressure was higher in group G than in group C at several intraoperative time points. Other intraoperative variables, including blood loss, urine output, and lactate levels were not different between the 2 groups. Postoperative variables, including creatinine, duration of postoperative mechanical ventilation, length of intensive care unit and hospital stay, and incidence of acute kidney injury, pneumonitis, and vasospasm were also comparable between groups. There was no difference in neurological outcome at hospital discharge (modified Rankin scale) and at 30 and 90 days (Extended Glasgow Outcome Scale) between the 2 groups. CONCLUSION Compared with CVP-guided fluid therapy, transesophageal echocardiography-guided GDFT maintains MAP with lower volumes of intravenous fluid in patients undergoing clipping of intracranial aneurysms with no adverse impact on postoperative complications.
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Respiratory Variation in Aortic Blood Flow Velocity in Hemodynamically Unstable, Ventilated Neonates: A Pilot Study of Fluid Responsiveness. Pediatr Crit Care Med 2021; 22:380-391. [PMID: 33315755 DOI: 10.1097/pcc.0000000000002628] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To assess whether respiratory variation in aortic blood flow peak velocity can predict preload responsiveness in mechanically ventilated and hemodynamically unstable neonates. DESIGN Prospective observational diagnostic accuracy study. SETTING Third-level neonatal ICU. PATIENTS Hemodynamically unstable neonates under mechanical ventilation. INTERVENTIONS Fluid challenge with 10 mL/kg of normal saline over 20 minutes. MEASUREMENTS AND MAIN RESULTS Respiratory variation in aortic blood flow peak velocity and superior vena cava flow were measured at baseline (T0), immediately upon completion of the fluid infusion (T1), and at 1 hour after fluid administration (T2). Our main outcome was preload responsiveness which was defined as an increase in superior vena cava flow of at least 10% from T0 to T1. Forty-six infants with a median (interquartile range) gestational age of 30.5 weeks (28-36 wk) were included. Twenty-nine infants (63%) were fluid responders, and 17 (37%) were nonresponders Fluid responders had a higher baseline (T0) respiratory variation in aortic blood flow peak velocity than nonresponders (9% [8.2-10.8] vs 5.5% [3.7-6.6]; p < 0.001). Baseline respiratory variation in aortic blood flow peak velocity was correlated with the increase in superior vena cava flow from T0 to T1 (rho = 0.841; p < 0.001). The area under the receiver operating characteristic curve of respiratory variation in aortic blood flow peak velocity to predict preload responsiveness was 0.912 (95% CI, 0.82-1). A respiratory variation in aortic blood flow peak velocity cut-off point of 7.8% provided a 90% sensitivity (95% CI, 71-97), 88% specificity (95% CI, 62-98), 7.6 positive likelihood ratio (95% CI, 2-28), and 0.11 negative likelihood ratio (95% CI, 0.03-0.34) to predict preload responsiveness. CONCLUSIONS Respiratory variation in aortic blood flow velocity may be useful to predict the immediate response to a fluid challenge in hemodynamically unstable neonates under mechanical ventilation. If our results are confirmed, this measurement could be used to guide safe and individualized fluid resuscitation in critically ill neonates.
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Çimen M, Eyüboğlu S, Özdemir U, Kalın BS, Güney T, Gürsel G. The Role of LVOT-VTI Measurement in the Evaluation of Systolic Heart Function in Pulmonary ICU Patients. CURRENT RESPIRATORY MEDICINE REVIEWS 2021. [DOI: 10.2174/1573398x16999201222123512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Introduction:
The detection of cardiac systolic dysfunction is very important for well
management of pulmonary critical care patients (PCCPs). However, there is a poor correlation between
echocardiographic cardiac systolic function (CSF) parameters and it is not easy to obtain these
parameters in PCCPs. Therefore, this cross-sectional observational study was planned for the
detection of a more easily obtainable echocardiographic CSF parameter that is well correlated with
other CSF parameters in PCCPs.
Materials and Methods:
Total 88 PCCPs were included. Demographic and clinical information
and laboratory tests of all patients were recorded. The CSF parameters of the heart were obtained
by transthoracic echocardiography with appropriate technique. LVOT-VTI (Left ventricular outflow
tract velocity time integral), CO (cardiac output), EPSS (e point septal separation), Left ventricular
EF (ejection fraction) and TAPSE (Tricuspid Annular Plane Systolic Excursion) as an indicator
of CSF were tried to obtain from all patients. We also calculated sensitivity, specificity, positive
and negative predictive values of LVOT-VTI<20 parameters to diagnose heart failure.
Results:
The mean age of the patients was 73±12, 40% were female, 38% were intubated and 52%
had COPD. LVOT-VTI, EF, CO, EPSS parameters were obtained in 54(61%), 24(27%), 48(54%),
48(54%) patients, respectively. Decreased LVOT-VTI (<20 cm) was well correlated with decreased
EF (<45%) (p=0.001, r=0.77), decreased CO (<5 L/dk) (p=0.03, r=0.64) and decreased
TAPSE (<17 mm) (p=0.001, r=0.71). Also, there was good agreement between the EF and LVOTVTI
measurements (Kappa:0.78, p:0.001). Sensitivity, specificity, positive and negative predictive
values of LVOT-VTI<20 for heart failure were 58, 78, 84, 49, repectively.
Conclusion:
LVOT-VTI is a more easily obtainable and well correlated parameter, which can be
used as an indicator of CSF in PCCPs.
Clinical Significances:
The authors believe that LVOT-VTI measurement has good correlation
with other echocardiographic systolic function parameters, and its easy measurement in intensive
care patients makes it a very useful test for cardiac systolic function evaluation.
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Affiliation(s)
- Meltem Çimen
- Division of Critical Care Medicine, Department of Anesthesiology, Gazi University School of Medicine, Ankara, Turkey
| | - Selin Eyüboğlu
- Division of Critical Care Medicine, Department of Anesthesiology, Gazi University School of Medicine, Ankara, Turkey
| | - Uğur Özdemir
- Division of Critical Care Medicine, Department of Internal Medicine, Gazi University School of Medicine, Ankara, Turkey
| | - Burhan Sami Kalın
- Division of Critical Care Medicine, Department of Internal Medicine, Gazi University School of Medicine, Ankara, Turkey
| | - Tuba Güney
- Department of Neurology, Gazi University School of Medicine, Ankara, Turkey
| | - Gül Gürsel
- Department of Pulmonary Critical Care Medicine, Gazi University School of Medicine, Ankara, Turkey
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Kenny JÉS. Functional Hemodynamic Monitoring With a Wireless Ultrasound Patch. J Cardiothorac Vasc Anesth 2021; 35:1509-1515. [PMID: 33597088 DOI: 10.1053/j.jvca.2021.01.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 01/19/2021] [Indexed: 02/07/2023]
Abstract
In this Emerging Technology Review, a novel, wireless, wearable Doppler ultrasound patch is described as a tool for resuscitation. The device is designed, foremost, as a functional hemodynamic monitor-a simple, fast, and consistent method for measuring hemodynamic change with preload variation. More generally, functional hemodynamic monitoring is a paradigm that helps predict stroke volume response to additional intravenous volume. Because Doppler ultrasound of the left ventricular outflow tract noninvasively measures stroke volume in realtime, it increasingly is deployed for this purpose. Nevertheless, Doppler ultrasound in this manner is cumbersome, especially when repeat assessments are needed. Accordingly, peripheral arteries have been studied and various measures from the common carotid artery Doppler signal act as windows to the left ventricle. Yet, handheld Doppler ultrasound of a peripheral artery is susceptible to human measurement error and statistical limitations from inadequate beat sample size. Therefore, a wearable Doppler ultrasound capable of continuous assessment minimizes measurement inconsistencies and smooths inherent physiologic variation by sampling many more cardiac cycles. Reaffirming clinical studies, the ultrasound patch tracks immediate SV change with excellent accuracy in healthy volunteers when cardiac preload is altered by various maneuvers. The wearable ultrasound also follows jugular venous Doppler, which qualitatively trends right atrial pressure. With further clinical research and the application of artificial intelligence, the monitoring modalities with this new technology are manifold.
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de Oliveira GCV, Teixeira-Neto FJ, Dalmagro TL, Alfonso A, Celeita-Rodríguez N, Lobo CPC, Lourenço MLG. Use of aortic flow indexes derived from transthoracic echocardiography to evaluate response to a fluid challenge in anesthetized dogs. Vet Anaesth Analg 2021; 48:187-197. [PMID: 33551352 DOI: 10.1016/j.vaa.2020.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 12/15/2020] [Accepted: 12/16/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To evaluate the ability of transthoracic echocardiographic aortic flow measurements to discriminate response to a fluid challenge (FC) in healthy anesthetized dogs. STUDY DESIGN Prospective experimental study. ANIMALS A total of 48 isoflurane-anesthetized dogs (14.2-35.0 kg) undergoing elective surgery. METHODS Fluid responsiveness was evaluated before surgery by FC (lactated Ringer's 10 mL kg-1 intravenously over 5 minutes). Percentage increases in transpulmonary thermodilution stroke volume (ΔSVTPTD) >15% from values recorded before FC defined responders to volume expansion. A group of 24 animals were assigned as nonresponders (ΔSVTPTD ≤15%). When ΔSVTPTD was >15% after the first FC, additional FC were administered until ΔSVTPTD was ≤15%. Final fluid responsiveness status was based on the response to the last FC. Percentage increases after FC in aortic flow indexes [velocity time integral (ΔVTIFC) and maximum acceleration (ΔVmaxFC)] and in mean arterial pressure (ΔMAPFC) were compared with ΔSVTPTD. RESULTS After one FC, 24 animals were responders. For nonresponders, ΔSVTPTD was ≤15% after one, two and three FCs in eight/24, 15/24 and one/24 animals, respectively. The FC that defined responsiveness increased ΔSVTPTD by 29 (18-53)% in responders and by 8 (-3 to 15)% in nonresponders [mean (range)]. The area under the receiver operating characteristics curve (AUROC) of ΔVTIFC (0.901) was larger than the AUROCs of ΔVmaxFC (0.774, p = 0.041) and ΔMAPFC (0.519, p < 0.0001). ΔMAPFC did not predict responsiveness (p = 0.826). Best cut-off thresholds for discriminating responders, with respective zones of diagnostic uncertainty (gray zones) were >14.7 (10.8-17.6)% for ΔVTIFC and >8.6 (-0.3 to 14.7)% for ΔVmaxFC. Animals within the gray zone were 17% (ΔVTIFC) and 50% (ΔVmaxFC). CONCLUSIONS AND CLINICAL RELEVANCE Changes in VTI induced by FC can determine responsiveness with reasonable accuracy in dogs and could play an important role in goal-directed fluid therapy.
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Affiliation(s)
- Guillermo C V de Oliveira
- Department of Veterinary Surgery and Animal Reproduction, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - Francisco J Teixeira-Neto
- Department of Veterinary Surgery and Animal Reproduction, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil; Department of Anesthesiology, Faculdade de Medicina, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil.
| | - Tábata L Dalmagro
- Department of Anesthesiology, Faculdade de Medicina, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - Angélica Alfonso
- Department of Veterinary Surgery and Animal Reproduction, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - Nathalia Celeita-Rodríguez
- Department of Anesthesiology, Faculdade de Medicina, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - César P C Lobo
- Department of Anesthesiology, Faculdade de Medicina, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
| | - Maria L G Lourenço
- Department of Veterinary Surgery and Animal Reproduction, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brazil
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Broyles MG, Subramanyam S, Barker AB, Tolwani AJ. Fluid Responsiveness in the Critically Ill Patient. Adv Chronic Kidney Dis 2021; 28:20-28. [PMID: 34389133 DOI: 10.1053/j.ackd.2021.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/04/2021] [Accepted: 06/13/2021] [Indexed: 12/19/2022]
Abstract
Accurate assessment of intravascular volume status in critically ill patients remains a very challenging task. Recent data have shown adverse outcomes in critically ill patients with either inadequate or overaggressive fluid therapy. Understanding the tools and techniques available for accurate volume assessment is imperative. This article discusses the concept of fluid responsiveness and reviews methods for assessing fluid responsiveness in critically ill patients.
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Waje ND, Chatterjee N, Arora NR, Kumar V. Anaesthetic Challenges and Transesophageal Echocardiography-Guided Perioperative Management in a Patient with Uncorrected Adult Congenital Heart Disease Presenting for Emergency Laparoscopic Hysterectomy. Turk J Anaesthesiol Reanim 2020; 49:169-174. [PMID: 33997849 PMCID: PMC8098740 DOI: 10.5152/tjar.2020.373] [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: 02/08/2020] [Accepted: 04/29/2020] [Indexed: 11/22/2022] Open
Abstract
Anaesthetic management of a patient with adult congenital heart disease with a single ventricle physiology presenting for an emergency laparoscopic surgery is challenging. The importance of a multidisciplinary approach, astute understanding of the pathophysiology and optimisation of intraoperative hemodynamic goals cannot be overemphasised. The present report describes the anaesthetic challenges and the role of transoesophageal echocardiography in perioperative management of a patient with uncorrected tetralogy of Fallot with pulmonary atresia, who successfully underwent an emergency laparoscopic hysterectomy under general anaesthesia.
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Affiliation(s)
- Niranjan Dilip Waje
- Cardiothoracic and Liver Transplant Unit, Reliance Hospital, Kopar Khairane, Navi Mumbai, India
| | - Nilay Chatterjee
- Department of Anaesthetics, Yeovil District Hospital, Higher Kingston, Yeovil, United Kingdom
| | - Nishant Ram Arora
- Department of Cardiac Anaesthesia, National Heart Centre, The Royal Hospital, Muscat, Oman
| | - Vijay Kumar
- Clinical Fellow in Anaesthesia, The Walton Centre NHS Foundation Trust, Lower Lane, Fazakerley, Liverpool, United Kingdom
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Michard F, Malbrain ML, Martin GS, Fumeaux T, Lobo S, Gonzalez F, Pinho-Oliveira V, Constantin JM. Haemodynamic monitoring and management in COVID-19 intensive care patients: an International survey. Anaesth Crit Care Pain Med 2020; 39:563-569. [PMID: 32781167 PMCID: PMC7415168 DOI: 10.1016/j.accpm.2020.08.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/27/2020] [Accepted: 08/04/2020] [Indexed: 01/08/2023]
Abstract
PURPOSE To survey haemodynamic monitoring and management practices in intensive care patients with the coronavirus disease 2019 (COVID-19). METHODS A questionnaire was shared on social networks or via email by the authors and by Anaesthesia and/or Critical Care societies from France, Switzerland, Belgium, Brazil, and Portugal. Intensivists and anaesthetists involved in COVID-19 ICU care were invited to answer 14 questions about haemodynamic monitoring and management. RESULTS Globally, 1000 questionnaires were available for analysis. Responses came mainly from Europe (n = 460) and America (n = 434). According to a majority of respondents, COVID-19 ICU patients frequently or very frequently received continuous vasopressor support (56%) and had an echocardiography performed (54%). Echocardiography revealed a normal cardiac function, a hyperdynamic state (43%), hypovolaemia (22%), a left ventricular dysfunction (21%) and a right ventricular dilation (20%). Fluid responsiveness was frequently assessed (84%), mainly using echo (62%), and cardiac output was measured in 69%, mostly with echo as well (53%). Venous oxygen saturation was frequently measured (79%), mostly from a CVC blood sample (94%). Tissue perfusion was assessed biologically (93%) and clinically (63%). Pulmonary oedema was detected and quantified mainly using echo (67%) and chest X-ray (61%). CONCLUSION Our survey confirms that vasopressor support is not uncommon in COVID-19 ICU patients and suggests that different haemodynamic phenotypes may be observed. Ultrasounds were used by many respondents, to assess cardiac function but also to predict fluid responsiveness and quantify pulmonary oedema. Although we observed regional differences, current international guidelines were followed by most respondents.
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Affiliation(s)
| | - Manu Lng Malbrain
- Intensive Care Unit, University Hospital Brussel, Jette, Belgium & Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Greg S Martin
- Emory University and Grady Memorial Hospital, Atlanta, USA
| | | | - Suzana Lobo
- Intensive Care Division, Hospital de Base - FAMERP, Sao Jose do Rio Preto, SP, Brazil
| | - Filipe Gonzalez
- Intensive Care Department, Hospital Garcia de Orta, Almada, Portugal
| | | | - Jean-Michel Constantin
- Department of Anesthesia & Critical Care, La Pitié Salpetriere Hospital, University Paris-Sorbonne, Paris, France
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Carmona García P, García Fuster R, Mateo E, Badía Gamarra S, López Cantero M, Gutiérrez Carretero E, Maestre ML, Legname V, Fita G, Vives M, Koller Bernhard T, Sánchez Pérez E, Miralles Bagán J, Italiano S, Darias-Delbey B, Barrio JM, Hortal J, Sáez de Ibarra JI, Hernández A. Intraoperative transesophageal echocardiography in cardiovascular surgery. Consensus document from the Spanish Society of Anesthesia and Critical Care (SEDAR) and the Spanish Society of Endovascular and Cardiovascular Surgery (SECCE). ACTA ACUST UNITED AC 2020; 67:446-480. [PMID: 32948329 DOI: 10.1016/j.redar.2020.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/17/2020] [Indexed: 12/15/2022]
Abstract
Transesophageal echocardiography is a semi-invasive technique that allows an evaluation of cardiac morphology and function in real time and it is a quality standard in cardiovascular surgery. It has become a fundamental tool for both monitoring and diagnosis in the intraoperative period that allows decide the correct surgical planning and pharmacological management. The goal of this document is to answer the questions of when and how the perioperative TEE should be performed in cardiovascular surgery, what are their applications in the intraoperative, who should perform it and how the information should be transmitted. The authors made a systematic review of international guidelines, review articles and clinical trials to answer by consensus to these questions.
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Affiliation(s)
- P Carmona García
- Servicio de Anestesiología y Reanimación, Hospital Universitario la Fe, Valencia, España. Miembro del grupo de trabajo en Ecografía de la Sección de Cuidados Críticos de la SEDAR. Coordinadora del grupo de trabajo en Ecocardiografía, transesofágica intraoperatoria de la SEDAR
| | - R García Fuster
- Servicio de Cirugía Cardiaca, Consorcio Hospital General Universitario de Valencia, España. Coordinador del grupo de trabajo en Ecocardiografía, transesofágica intraoperatoria de la SECCE.
| | - E Mateo
- Servicio de Anestesiología y Reanimación, Consorcio Hospital General Universitario de Valencia, Valencia, España
| | - S Badía Gamarra
- Servicio de Cirugía Cardiaca, Hospital Universitario Trías y Pujol, Badalona, España
| | - M López Cantero
- Servicio de Anestesiología y Reanimación, Hospital Universitario la Fe, Valencia, España
| | - E Gutiérrez Carretero
- Servicio de Cirugía Cardiaca, Hospital, Universitario Virgen del Rocío, Sevilla, España
| | - M L Maestre
- Sección Cardiotorácica, Servicio de Anestesiología y Reanimación, Hospital Sant Pau, Barcelona, España
| | - V Legname
- Servicio de Cirugía Cardiaca, Centro Médico Teknon, Barcelona, España
| | - G Fita
- Sección Cardiotorácica, Servicio de Anestesiología y Reanimación. Hospital Clínic, Barcelona, España
| | - M Vives
- EDAIC. PhD. Sección Cardiotorácica, Servicio de Anestesiología y Reanimación, Hospital Universitario Dr Josep Trueta de Girona, España. Representante de España en la EACTA. Co-director del grupo de trabajo en Ecografía de la Sección de Cuidados Críticos de la SEDAR. Representante del subcomité de Educación de EACTA. Co-director grupo EchoSim
| | - T Koller Bernhard
- Sección Cardiotorácica, Servicio de Anestesiología, Hospital de la Santa Creu i Sant Pau, Barcelona, España
| | - E Sánchez Pérez
- EDAIC. Sección de Cirugía Cardiaca, Servicio de Anestesia y Reanimación, Hospital General Universitario Gregorio Marañón, Madrid, España. Miembro del grupo de trabajo en Ecografía de la Sección de Cuidados Críticos de la SEDAR
| | - J Miralles Bagán
- Sección Cardiotorácica, Servicio Anestesiología y Reanimación, Hospital Sant Pau, Barcelona, España
| | - S Italiano
- Sección Cardiotorácica, Servicio de Anestesiología, Hospital de la Santa Creu i Sant Pau, Barcelona, España
| | - B Darias-Delbey
- Servicio Anestesiología y Reanimación, Proceso del Paciente, Cardioquirúrgico, Complejo Hospitalario Universitario de Canarias, Santa Cruz de Tenerife, España
| | - J M Barrio
- Sección Anestesia y Reanimación Cardiovascular, Servicio de Anestesia y Reanimación, Hospital General Universitario Gregorio Marañón, Madrid, España
| | - J Hortal
- Servicio de Anestesiología y Reanimación, Hospital General. Universitario Gregorio Marañón, Madrid, España
| | - J I Sáez de Ibarra
- Servicio de Cirugía Cardiaca, Hospital Universitario Son Espases, Palma de Mallorca, España
| | - A Hernández
- Departamento de Anestesia y Cuidados Intensivos, Grupo Policlínica, Ibiza, España. Miembro del grupo de trabajo en Ecografía de la Sección de Cuidados Críticos, de la SEDAR Representante del subcomité de Educación de EACTA, EDAIC, Codirector grupo EchoSim
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Carmona García P, García Fuster R, Mateo E, Badía Gamarra S, López Cantero M, Gutiérrez Carretero E, Maestre ML, Legname V, Fita G, Vives M, Koller Bernhard T, Sánchez Pérez E, Miralles Bagán J, Italiano S, Darias-Delbey B, Barrio JM, Hortal J, Sáez de Ibarra JI, Hernández A. Ecocardiografía transesofágica intraoperatoria en cirugía cardiovascular. Documento de consenso de la Sociedad Española de Anestesiología y Reanimación (SEDAR) y Sociedad Española de Cirugía Cardiovascular y Endovascular (SECCE). CIRUGIA CARDIOVASCULAR 2020. [DOI: 10.1016/j.circv.2020.03.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Russell A, Rivers EP, Giri PC, Jaehne AK, Nguyen HB. A Physiologic Approach to Hemodynamic Monitoring and Optimizing Oxygen Delivery in Shock Resuscitation. J Clin Med 2020; 9:jcm9072052. [PMID: 32629778 PMCID: PMC7408843 DOI: 10.3390/jcm9072052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/18/2020] [Accepted: 06/27/2020] [Indexed: 12/14/2022] Open
Abstract
The approach to shock resuscitation focuses on all components of oxygen delivery, including preload, afterload, contractility, hemoglobin, and oxygen saturation. Resuscitation focused solely on preload and fluid responsiveness minimizes other key elements, resulting in suboptimal patient care. This review will provide a physiologic and practical approach for the optimization of oxygen delivery utilizing available hemodynamic monitoring technologies. Venous oxygen saturation (SvO2) and lactate will be discussed as indicators of shock states and endpoints of resuscitation within the framework of resolving oxygen deficit and oxygen debt.
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Affiliation(s)
- Amy Russell
- Department of Emergency Medicine, Loma Linda University, Loma Linda, CA 92354, USA;
| | - Emanuel P. Rivers
- Department of Emergency Medicine, Henry Ford Hospital, Detroit, MI 48202, USA; (E.P.R.); (A.K.J.)
- Surgical Critical Care, Henry Ford Hospital, Detroit, MI 48202, USA
| | - Paresh C. Giri
- Division of Pulmonary, Critical Care, Hyperbaric, Allergy, and Sleep Medicine, Loma Linda University, Loma Linda, CA 92354, USA;
| | - Anja K. Jaehne
- Department of Emergency Medicine, Henry Ford Hospital, Detroit, MI 48202, USA; (E.P.R.); (A.K.J.)
| | - H. Bryant Nguyen
- Division of Pulmonary, Critical Care, Hyperbaric, Allergy, and Sleep Medicine, Loma Linda University, Loma Linda, CA 92354, USA;
- Department of Emergency Medicine, Loma Linda University, Loma Linda, CA 92354, USA;
- Correspondence: ; Tel.: +1-909-558-4023
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Respiratory Variations in Aortic Blood Flow to Predict Volume Responsiveness in Ventilated Children With Leukemia and Neutropenic Septic Shock. Pediatr Crit Care Med 2020; 21:e247-e252. [PMID: 32132502 DOI: 10.1097/pcc.0000000000002260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To investigate whether respiratory variations in aortic blood flow by echocardiography can accurately predict volume responsiveness in ventilated children with leukemia and neutropenic septic shock. DESIGN A prospective study. SETTING A 25-bed PICU of a tertiary hospital. PATIENTS Mechanically ventilated children with leukemia who had been exposed to anthracyclines and exhibited neutropenic septic shock were enrolled. INTERVENTIONS Transthoracic echocardiography was performed to monitor the aortic blood flow before and after fluid administration. MEASUREMENTS AND MAIN RESULTS After volume expansion, left ventricular stroke volume increased by greater than or equal to 15% in 16 patients (responders) and less than 15% in 14 patients (nonresponders). The performance of respiratory variation in velocity time integral of aortic blood flow and respiratory variation in peak velocity of aortic blood flow for predicting volume responsiveness, as determined by the area under the receiver operating characteristic curve, was 0.74 (95% CI, 0.55-0.94; p = 0.025) and 0.71 (95% CI, 0.53-0.90; p = 0.048), respectively. Positive end-expiratory pressure was higher in nonresponders than in responders (p = 0.035). CONCLUSIONS Respiratory variation in velocity time integral of aortic blood flow and respiratory variation in peak velocity of aortic blood flow derived from transthoracic echocardiography showed only a fair reliability in predicting volume responsiveness in ventilated children with leukemia and neutropenic septic shock.
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Singh Y, Tissot C, Fraga MV, Yousef N, Cortes RG, Lopez J, Sanchez-de-Toledo J, Brierley J, Colunga JM, Raffaj D, Da Cruz E, Durand P, Kenderessy P, Lang HJ, Nishisaki A, Kneyber MC, Tissieres P, Conlon TW, De Luca D. International evidence-based guidelines on Point of Care Ultrasound (POCUS) for critically ill neonates and children issued by the POCUS Working Group of the European Society of Paediatric and Neonatal Intensive Care (ESPNIC). Crit Care 2020; 24:65. [PMID: 32093763 PMCID: PMC7041196 DOI: 10.1186/s13054-020-2787-9] [Citation(s) in RCA: 297] [Impact Index Per Article: 74.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/14/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Point-of-care ultrasound (POCUS) is nowadays an essential tool in critical care. Its role seems more important in neonates and children where other monitoring techniques may be unavailable. POCUS Working Group of the European Society of Paediatric and Neonatal Intensive Care (ESPNIC) aimed to provide evidence-based clinical guidelines for the use of POCUS in critically ill neonates and children. METHODS Creation of an international Euro-American panel of paediatric and neonatal intensivists expert in POCUS and systematic review of relevant literature. A literature search was performed, and the level of evidence was assessed according to a GRADE method. Recommendations were developed through discussions managed following a Quaker-based consensus technique and evaluating appropriateness using a modified blind RAND/UCLA voting method. AGREE statement was followed to prepare this document. RESULTS Panellists agreed on 39 out of 41 recommendations for the use of cardiac, lung, vascular, cerebral and abdominal POCUS in critically ill neonates and children. Recommendations were mostly (28 out of 39) based on moderate quality of evidence (B and C). CONCLUSIONS Evidence-based guidelines for the use of POCUS in critically ill neonates and children are now available. They will be useful to optimise the use of POCUS, training programs and further research, which are urgently needed given the weak quality of evidence available.
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Affiliation(s)
- Yogen Singh
- Department of Paediatrics - Neonatology and Paediatric Cardiology, Cambridge University Hospitals and University of Cambridge School of Clinical Medicine, Biomedical Campus, Hills Road, Cambridge, CB2 0QQ, UK.
- Addenbrooke's Hospital, Box 402, Cambridge, UK.
| | - Cecile Tissot
- Paediatric Cardiology, Centre de Pédiatrie, Clinique des Grangettes, Geneva, Switzerland
| | - María V Fraga
- Department of Paediatrics, Children's Hospital of Philadelphia and Perelman School of Medicine, Philadelphia, USA
| | - Nadya Yousef
- Division of Paediatrics and Neonatal Critical Care, APHP - Paris Saclay University Hospitals, "A. Béclère" Medical centre, Paris, France
| | - Rafael Gonzalez Cortes
- Department of Paediatric Intensive Care, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Jorge Lopez
- Department of Paediatric Intensive Care, Gregorio Marañón General University Hospital, Madrid, Spain
| | | | - Joe Brierley
- Department of Paediatric Intensive Care, Great Ormond Street Hospital, London, UK
| | - Juan Mayordomo Colunga
- Department of Paediatric Intensive Care, Hospital Universitario Central de Asturias, Oviedo. CIBER-Enfermedades Respiratorias. Instituto de Salud Carlos III, Madrid. Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Dusan Raffaj
- Department of Paediatric Intensive Care, Nottingham University Hospitals, Nottingham, UK
| | - Eduardo Da Cruz
- Department of Paediatric and Cardiac Intensive Care, Children's Hospital Colorado, Aurora, USA
| | - Philippe Durand
- Division of Paediatric Critical Care, APHP - Paris Saclay University Hospitals, "Kremlin Bicetre" Medical Centre, Paris, France
| | - Peter Kenderessy
- Department of Paediatric Anaesthesia and Intensive Care, Children's Hospital Banska Bystrica, Banska Bystrica, Slovakia
| | - Hans-Joerg Lang
- Department of Paediatrics, Medicins Sans Frontieres (Suisse), Geneva, Switzerland
| | - Akira Nishisaki
- Department of Anaesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia and Perelman School of Medicine, Philadelphia, USA
| | - Martin C Kneyber
- Department of Paediatrics, Division of Paediatric Critical Care Medicine, Beatrix Children's Hospital Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Pierre Tissieres
- Division of Paediatric Critical Care, APHP - Paris Saclay University Hospitals, "Kremlin Bicetre" Medical Centre, Paris, France
| | - Thomas W Conlon
- Department of Anaesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia and Perelman School of Medicine, Philadelphia, USA
| | - Daniele De Luca
- Division of Paediatrics and Neonatal Critical Care, APHP - Paris Saclay University Hospitals, "A. Béclère" Medical centre, Paris, France
- Physiopathology and Therapeutic Innovation Unit-INSERM Unit U999, South Paris Medical School, Paris Saclay University, Paris, France
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A Carotid Doppler Patch Accurately Tracks Stroke Volume Changes During a Preload-Modifying Maneuver in Healthy Volunteers. Crit Care Explor 2020; 2:e0072. [PMID: 32166292 PMCID: PMC7063906 DOI: 10.1097/cce.0000000000000072] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Objectives: Detecting instantaneous stroke volume change in response to altered cardiac preload is the physiologic foundation for determining preload responsiveness. Design: Proof-of-concept physiology study. Setting: Research simulation laboratory. Subjects: Twelve healthy volunteers. Interventions: A wireless continuous wave Doppler ultrasound patch was used to measure carotid velocity time integral and carotid corrected flow time during a squat maneuver. The Doppler patch measurements were compared with simultaneous stroke volume measurements obtained from a noninvasive cardiac output monitor. Measurements and Main Results: From stand to squat, stroke volume increased by 24% while carotid velocity time integral and carotid corrected flow time increased by 32% and 9%, respectively. From squat to stand, stroke volume decreased by 13%, while carotid velocity time integral and carotid corrected flow time decreased by 24% and 10%, respectively. Both changes in carotid velocity time integral and corrected flow time were closely correlated with changes in stroke volume (r2 = 0.81 and 0.62, respectively). The four-quadrant plot found a 100% concordance rate between changes in stroke volume and both changes in carotid velocity time integral and changes in corrected flow time. A change in carotid velocity time integral greater than 15% predicted a change in stroke volume greater than 10% with a sensitivity of 95% and a specificity of 92%. A change in carotid corrected flow time greater than 4% predicted a change in stroke volume greater than 10% with a sensitivity of 90% and a specificity of 92%. Conclusions: In healthy volunteers, both carotid velocity time integral and carotid corrected flow time measured by a wireless Doppler patch were useful to track changes in stroke volume induced by a preload-modifying maneuver with high sensitivity and specificity.
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Performance of the Hypotension Prediction Index with non-invasive arterial pressure waveforms in non-cardiac surgical patients. J Clin Monit Comput 2020; 35:71-78. [PMID: 31989416 PMCID: PMC7889685 DOI: 10.1007/s10877-020-00463-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/18/2020] [Indexed: 01/08/2023]
Abstract
An algorithm derived from machine learning uses the arterial waveform to predict intraoperative hypotension some minutes before episodes, possibly giving clinician’s time to intervene and prevent hypotension. Whether the Hypotension Prediction Index works well with noninvasive arterial pressure waveforms remains unknown. We therefore evaluated sensitivity, specificity, and positive predictive value of the Index based on non-invasive arterial waveform estimates. We used continuous hemodynamic data measured from ClearSight (formerly Nexfin) noninvasive finger blood pressure monitors in surgical patients. We re-evaluated data from a trial that included 320 adults ≥ 45 years old designated ASA physical status 3 or 4 who had moderate-to-high-risk non-cardiac surgery with general anesthesia. We calculated sensitivity and specificity for predicting hypotension, defined as mean arterial pressure ≤ 65 mmHg for at least 1 min, and characterized the relationship with receiver operating characteristics curves. We also evaluated the number of hypotensive events at various ranges of the Hypotension Prediction Index. And finally, we calculated the positive predictive value for hypotension episodes when the Prediction Index threshold was 85. The algorithm predicted hypotension 5 min in advance, with a sensitivity of 0.86 [95% confidence interval 0.82, 0.89] and specificity 0.86 [0.82, 0.89]. At 10 min, the sensitivity was 0.83 [0.79, 0.86] and the specificity was 0.83 [0.79, 0.86]. And at 15 min, the sensitivity was 0.75 [0.71, 0.80] and the specificity was 0.75 [0.71, 0.80]. The positive predictive value of the algorithm prediction at an Index threshold of 85 was 0.83 [0.79, 0.87]. A Hypotension Prediction Index of 80–89 provided a median of 6.0 [95% confidence interval 5.3, 6.7] minutes warning before mean arterial pressure decreased to < 65 mmHg. The Hypotension Prediction Index, which was developed and validated with invasive arterial waveforms, predicts intraoperative hypotension reasonably well from non-invasive estimates of the arterial waveform. Hypotension prediction, along with appropriate management, can potentially reduce intraoperative hypotension. Being able to use the non-invasive pressure waveform will widen the range of patients who might benefit. Clinical Trial Number: ClinicalTrials.gov NCT02872896.
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