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Huang W, Huang Y, Ke L, Hu C, Chen P, Hu B. Perspectives for capillary refill time in clinical practice for sepsis. Intensive Crit Care Nurs 2024; 84:103743. [PMID: 38896965 DOI: 10.1016/j.iccn.2024.103743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 05/11/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND Capillary refill time (CRT) is defined as the time taken for color to return to an external capillary bed after pressure is applied to cause blanching. Recent studies demonstrated the benefits of CRT in guiding fluid therapy for sepsis. However, lack of consistency among physicians in how to perform and interpret CRT has led to a low interobserver agreement for this assessment tool, which prevents its availability in sepsis clinical settings. OBJECTIVE To give physicians a concise overview of CRT and explore recent evidence on its reliability and value in the management of sepsis. RESEARCH DESIGN A narrative review. RESULTS This narrative review summarizes the factors affecting CRT values, for example, age, sex, temperature, light, observation techniques, work experience, training level and differences in CRT measurement methods. The methods of reducing the variability of CRT are synthesized. Based on studies with highly reproducible CRT measurements and an excellent inter-rater concordance, we recommend the standardized CRT assessment method. The threshold of normal CRT values is discussed. The application of CRT in different phases of sepsis management is summarized. CONCLUSIONS Recent data confirm the value of CRT in critically ill patients. CRT should be detected by trained physicians using standardized methods and reducing the effect of ambient-related factors. Its association with severe infection, microcirculation, tissue perfusion response, organ dysfunction and adverse outcomes makes this approach a very attractive tool in sepsis. Further studies should confirm its value in the management of sepsis. IMPLICATIONS FOR CLINICAL PRACTICE As a simple assessment, CRT deserves more attention even though it has not been widely applied at the bedside. CRT could provide nursing staff with patient's microcirculatory status, which may help to develop individualized nursing plans and improve the patient's care quality and treatment outcomes.
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Affiliation(s)
- Weipeng Huang
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China; Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China.
| | - Yiyan Huang
- Nursing Department, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China.
| | - Li Ke
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China.
| | - Chang Hu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China.
| | - Pengyu Chen
- Department of Urology, Shenzhen Children's Hospital, Futian District, Shenzhen 518000, Guangdong, China.
| | - Bo Hu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei, China.
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2
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Muñoz F, Born P, Bruna M, Ulloa R, González C, Philp V, Mondaca R, Blanco JP, Valenzuela ED, Retamal J, Miralles F, Wendel-Garcia PD, Ospina-Tascón GA, Castro R, Rola P, Bakker J, Hernández G, Kattan E. Coexistence of a fluid responsive state and venous congestion signals in critically ill patients: a multicenter observational proof-of-concept study. Crit Care 2024; 28:52. [PMID: 38374167 PMCID: PMC10877871 DOI: 10.1186/s13054-024-04834-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 02/10/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Current recommendations support guiding fluid resuscitation through the assessment of fluid responsiveness. Recently, the concept of fluid tolerance and the prevention of venous congestion (VC) have emerged as relevant aspects to be considered to avoid potentially deleterious side effects of fluid resuscitation. However, there is paucity of data on the relationship of fluid responsiveness and VC. This study aims to compare the prevalence of venous congestion in fluid responsive and fluid unresponsive critically ill patients after intensive care (ICU) admission. METHODS Multicenter, prospective cross-sectional observational study conducted in three medical-surgical ICUs in Chile. Consecutive mechanically ventilated patients that required vasopressors and admitted < 24 h to ICU were included between November 2022 and June 2023. Patients were assessed simultaneously for fluid responsiveness and VC at a single timepoint. Fluid responsiveness status, VC signals such as central venous pressure, estimation of left ventricular filling pressures, lung, and abdominal ultrasound congestion indexes and relevant clinical data were collected. RESULTS Ninety patients were included. Median age was 63 [45-71] years old, and median SOFA score was 9 [7-11]. Thirty-eight percent of the patients were fluid responsive (FR+), while 62% were fluid unresponsive (FR-). The most prevalent diagnosis was sepsis (41%) followed by respiratory failure (22%). The prevalence of at least one VC signal was not significantly different between FR+ and FR- groups (53% vs. 57%, p = 0.69), as well as the proportion of patients with 2 or 3 VC signals (15% vs. 21%, p = 0.4). We found no association between fluid balance, CRT status, or diagnostic group and the presence of VC signals. CONCLUSIONS Venous congestion signals were prevalent in both fluid responsive and unresponsive critically ill patients. The presence of venous congestion was not associated with fluid balance or diagnostic group. Further studies should assess the clinical relevance of these results and their potential impact on resuscitation and monitoring practices.
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Affiliation(s)
- Felipe Muñoz
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Pablo Born
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Mario Bruna
- Unidad de Cuidados Intensivos, Hospital de Quilpué, Quilpué, Chile
| | - Rodrigo Ulloa
- Unidad de Cuidados Intensivos, Hospital Las Higueras, Talcahuano, Chile
| | - Cecilia González
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Valerie Philp
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Roberto Mondaca
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Juan Pablo Blanco
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Emilio Daniel Valenzuela
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Jaime Retamal
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | | | - Pedro D Wendel-Garcia
- Institute of Intensive Care Medicine, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Gustavo A Ospina-Tascón
- Department of Intensive Care Medicine, Fundación Valle del Lili, Cali, Colombia
- Translational Research Laboratory in Critical Care Medicine (TransLab-CCM), Universidad Icesi, Cali, Colombia
| | - Ricardo Castro
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Philippe Rola
- Intensive Care Unit, Hopital Santa Cabrini, CIUSSS EMTL, Montreal, Canada
| | - Jan Bakker
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
- Department of Intensive Care Adults, Erasmus MC University Medical Center, Rotterdam, The Netherlands
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Medical Center, New York, USA
| | - Glenn Hernández
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile
| | - Eduardo Kattan
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Avenida Diagonal Paraguay 362, Santiago, Chile.
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Watanabe K, Shiba T, Takahara A, Homma H, Komatsu T, Tanino Y, Nagasawa Y, Aimoto M, Hori Y. Evaluating the relationship between ocular blood flow and systemic organ blood flow in hemorrhagic shock using a rabbit model. Sci Rep 2024; 14:3749. [PMID: 38355984 PMCID: PMC10866860 DOI: 10.1038/s41598-024-54467-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 02/13/2024] [Indexed: 02/16/2024] Open
Abstract
This study aimed to investigate the feasibility of utilizing noninvasive ocular blood flow measurements as potential indicators of systemic circulation in rabbits experiencing hemorrhagic shock. Using Laser speckle flowgraphy, ocular blood flow indices, relative flow volume (RFV), and mean blur rate in the choroidal area (MBR-CH) were assessed in New Zealand White rabbits (n = 10) subjected to controlled blood removal and return. Hemodynamic parameters and biochemical markers were monitored alongside ocular circulation during blood removal and return phases. Additionally, correlations between ocular parameters and systemic indices were examined. The results indicated that RFV and MBR-CH exhibited significant correlations with renal and intestinal blood flows, with stronger correlations observed during blood removal. Additionally, ocular blood flow changes closely mirrored systemic dynamics, suggesting their potential as real-time indicators of shock progression and recovery. These findings indicate that ocular blood flow measurements may serve as real-time indicators of the systemic circulation status during hemorrhagic shock, offering potential insights into shock management and guiding tailored interventions. Thus, noninvasive ocular blood flow evaluation holds promise as an innovative tool for assessing systemic circulation dynamics during hemorrhagic shock.
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Affiliation(s)
- Kento Watanabe
- Department of Ophthalmology, Toho University, 6-11-1, Omorinishi, Oota-ku, Tokyo, 143-8541, Japan.
| | - Tomoaki Shiba
- Department of Ophthalmology, International University of Health and Welfare Narita Hospital, Chiba, Japan
| | - Akira Takahara
- Department of Pharmacology and Therapeutics, Faculty of Pharmaceutical Sciences, Toho University, Chiba, Japan
| | - Hiroshi Homma
- Department of Emergency and Critical Care Medicine, Tokyo Medical University, Tokyo, Japan
| | - Tetsuya Komatsu
- Department of Ophthalmology, Toho University, 6-11-1, Omorinishi, Oota-ku, Tokyo, 143-8541, Japan
| | - Yusuke Tanino
- Department of Emergency and Critical Care Medicine, Tokyo Medical University, Tokyo, Japan
| | - Yoshinobu Nagasawa
- Department of Pharmacology and Therapeutics, Faculty of Pharmaceutical Sciences, Toho University, Chiba, Japan
| | - Megumi Aimoto
- Department of Pharmacology and Therapeutics, Faculty of Pharmaceutical Sciences, Toho University, Chiba, Japan
| | - Yuichi Hori
- Department of Ophthalmology, Toho University, 6-11-1, Omorinishi, Oota-ku, Tokyo, 143-8541, Japan
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Jacquet-Lagrèze M, Pernollet A, Kattan E, Ait-Oufella H, Chesnel D, Ruste M, Schweizer R, Allaouchiche B, Hernandez G, Fellahi JL. Prognostic value of capillary refill time in adult patients: a systematic review with meta-analysis. Crit Care 2023; 27:473. [PMID: 38042855 PMCID: PMC10693708 DOI: 10.1186/s13054-023-04751-9] [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: 08/07/2023] [Accepted: 11/19/2023] [Indexed: 12/04/2023] Open
Abstract
PURPOSE Acute circulatory failure leads to tissue hypoperfusion. Capillary refill time (CRT) has been widely studied, but its predictive value remains debated. We conducted a meta-analysis to assess the ability of CRT to predict death or adverse events in a context at risk or confirmed acute circulatory failure in adults. METHOD MEDLINE, EMBASE, and Google scholar databases were screened for relevant studies. The pooled area under the ROC curve (AUC ROC), sensitivity, specificity, threshold, and diagnostic odds ratio using a random-effects model were determined. The primary analysis was the ability of abnormal CRT to predict death in patients with acute circulatory failure. Secondary analysis included the ability of CRT to predict death or adverse events in patients at risk or with confirmed acute circulatory failure, the comparison with lactate, and the identification of explanatory factors associated with better accuracy. RESULTS A total of 60,656 patients in 23 studies were included. Concerning the primary analysis, the pooled AUC ROC of 13 studies was 0.66 (95%CI [0.59; 0.76]), and pooled sensitivity was 54% (95%CI [43; 64]). The pooled specificity was 72% (95%CI [55; 84]). The pooled diagnostic odds ratio was 3.4 (95%CI [1.4; 8.3]). Concerning the secondary analysis, the pooled AUC ROC of 23 studies was 0.69 (95%CI [0.65; 0.74]). The prognostic value of CRT compared to lactate was not significantly different. High-quality CRT was associated with a greater accuracy. CONCLUSION CRT poorly predicted death and adverse events in patients at risk or established acute circulatory failure. Its accuracy is greater when high-quality CRT measurement is performed.
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Affiliation(s)
- Matthias Jacquet-Lagrèze
- Service d'anesthésie-Réanimation, Hôpital Cardiologique Louis Pradel, 59 Bd Pinel, 69500, Hospices Civils de LyonBron, France.
- Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, 8, Avenue Rockefeller, 69373, Lyon Cedex 08, France.
- CarMeN Laboratoire, Inserm UMR 1060, Université Claude Bernard, Lyon 1, Lyon, France.
| | - Aymeric Pernollet
- Service d'anesthésie-Réanimation, Hôpital Cardiologique Louis Pradel, 59 Bd Pinel, 69500, Hospices Civils de LyonBron, France
- Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, 8, Avenue Rockefeller, 69373, Lyon Cedex 08, France
| | - Eduardo Kattan
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- The Latin American Intensive Care Network (LIVEN), Santiago, Chile
| | - Hafid Ait-Oufella
- Hôpital Saint-Antoine, Service de Médecine Intensive-Réanimation, Sorbonne Université, Paris, France
| | - Delphine Chesnel
- Service d'anesthésie-Réanimation, Hôpital Cardiologique Louis Pradel, 59 Bd Pinel, 69500, Hospices Civils de LyonBron, France
- Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, 8, Avenue Rockefeller, 69373, Lyon Cedex 08, France
| | - Martin Ruste
- Service d'anesthésie-Réanimation, Hôpital Cardiologique Louis Pradel, 59 Bd Pinel, 69500, Hospices Civils de LyonBron, France
- Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, 8, Avenue Rockefeller, 69373, Lyon Cedex 08, France
- CarMeN Laboratoire, Inserm UMR 1060, Université Claude Bernard, Lyon 1, Lyon, France
| | - Rémi Schweizer
- Service d'anesthésie-Réanimation, Hôpital Cardiologique Louis Pradel, 59 Bd Pinel, 69500, Hospices Civils de LyonBron, France
- Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, 8, Avenue Rockefeller, 69373, Lyon Cedex 08, France
| | - Bernard Allaouchiche
- Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, 8, Avenue Rockefeller, 69373, Lyon Cedex 08, France
- Service d'anesthésie-Réanimation, Hôpital Lyon Sud, Hospices Civils de Lyon, 165 Chem. du Grand Revoyet, 69495, Pierre-Bénite, France
| | - Glenn Hernandez
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- The Latin American Intensive Care Network (LIVEN), Santiago, Chile
| | - Jean-Luc Fellahi
- Service d'anesthésie-Réanimation, Hôpital Cardiologique Louis Pradel, 59 Bd Pinel, 69500, Hospices Civils de LyonBron, France
- Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, 8, Avenue Rockefeller, 69373, Lyon Cedex 08, France
- CarMeN Laboratoire, Inserm UMR 1060, Université Claude Bernard, Lyon 1, Lyon, France
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Fage N, Moretto F, Rosalba D, Shi R, Lai C, Teboul JL, Monnet X. Effect on capillary refill time of volume expansion and increase of the norepinephrine dose in patients with septic shock. Crit Care 2023; 27:429. [PMID: 37932812 PMCID: PMC10629142 DOI: 10.1186/s13054-023-04714-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 10/27/2023] [Indexed: 11/08/2023] Open
Abstract
BACKGROUND Capillary refill time (CRT) has been suggested as a variable to follow during the course of septic shock. We systematically investigated the effects on CRT of volume expansion and norepinephrine. METHODS In 69 septic shock patients, we recorded mean arterial pressure (MAP), cardiac index (CI), and 5 consecutive CRT measurements (video method, standardized pressure applied on the fingertip) before and after a 500-mL saline infusion in 33 patients and before and after an increase of the norepinephrine dose in 36 different patients. Fluid responders were defined by an increase in CI ≥ 15%, and norepinephrine responders by an increase in MAP ≥ 15%. RESULTS The least significant change of CRT was 23%, so that changes in CRT were considered significant if larger than 23%. With volume expansion, CRT remained unchanged on average in patients with baseline CRT < 3 s (n = 7) and in all but one patient with baseline CRT ≥ 3 s in whom fluid increased CI < 15% (n = 13 "fluid non-responders"). In fluid responders with baseline CRT ≥ 3 s (n = 13), CRT decreased in 8 patients and remained unchanged in the others, exhibiting a dissociation between CI and CRT responses. The proportion of patients included > 24 h after starting norepinephrine was higher in patients with such a dissociation than in the other ones (60% vs. 0%, respectively). Norepinephrine did not change CRT significantly (except in one patient) if baseline CRT was ≥ 3 s and the increase in MAP < 15% (n = 6). In norepinephrine responders with prolonged baseline CRT (n = 11), it increased in 4 patients and remained unchanged in the other ones, which exhibited a dissociation between MAP and CRT responses. CONCLUSIONS In septic shock patients with prolonged CRT, CRT very rarely improves with treatment when volume expansion increases cardiac output < 15% and increasing norepinephrine increases MAP < 15%. When the effects of fluid infusion on cardiac output and of norepinephrine on MAP are significant, the response of CRT is variable, as it decreases in some patients and remains stable in others which exhibit a dissociation between changes in macrohemodynamic variables and in CRT. In this regard, CRT behaves as a marker of microcirculation. TRIAL REGISTRATION ClinicalTrial.gov (NCT04870892). Registered January15, 2021. Ethics committee approval CE SRLF 21-25.
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Affiliation(s)
- Nicolas Fage
- Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU CORREVE, Inserm UMR S_999, FHU SEPSIS, Groupe de Recherche Clinique CARMAS, Université Paris-Saclay, AP-HP, Le Kremlin-Bicêtre, France.
- Department of Medical Intensive Care, University Hospital of Angers, Angers, France.
- MITOVASC Laboratory UMR INSERM (French National Institute of Health and Medical Research), 1083-CNRS 6015, University of Angers, Angers, France.
| | - Francesca Moretto
- Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU CORREVE, Inserm UMR S_999, FHU SEPSIS, Groupe de Recherche Clinique CARMAS, Université Paris-Saclay, AP-HP, Le Kremlin-Bicêtre, France
| | - Daniela Rosalba
- Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU CORREVE, Inserm UMR S_999, FHU SEPSIS, Groupe de Recherche Clinique CARMAS, Université Paris-Saclay, AP-HP, Le Kremlin-Bicêtre, France
| | - Rui Shi
- Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU CORREVE, Inserm UMR S_999, FHU SEPSIS, Groupe de Recherche Clinique CARMAS, Université Paris-Saclay, AP-HP, Le Kremlin-Bicêtre, France
| | - Christopher Lai
- Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU CORREVE, Inserm UMR S_999, FHU SEPSIS, Groupe de Recherche Clinique CARMAS, Université Paris-Saclay, AP-HP, Le Kremlin-Bicêtre, France
| | - Jean-Louis Teboul
- Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU CORREVE, Inserm UMR S_999, FHU SEPSIS, Groupe de Recherche Clinique CARMAS, Université Paris-Saclay, AP-HP, Le Kremlin-Bicêtre, France
| | - Xavier Monnet
- Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU CORREVE, Inserm UMR S_999, FHU SEPSIS, Groupe de Recherche Clinique CARMAS, Université Paris-Saclay, AP-HP, Le Kremlin-Bicêtre, France
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6
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Suh GJ, shin TG, Kwon WY, Kim K, Jo YH, Choi SH, Chung SP, Kim WY. Hemodynamic management of septic shock: beyond the Surviving Sepsis Campaign guidelines. Clin Exp Emerg Med 2023; 10:255-264. [PMID: 37439141 PMCID: PMC10579730 DOI: 10.15441/ceem.23.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/19/2023] [Accepted: 06/19/2023] [Indexed: 07/14/2023] Open
Abstract
Although the Surviving Sepsis Campaign guidelines provide standardized and generalized guidance, they are less individualized. This review focuses on recent updates in the hemodynamic management of septic shock. Monitoring and intervention for septic shock should be personalized according to the phase of shock. In the salvage phase, fluid resuscitation and vasopressors should be given to provide life-saving tissue perfusion. During the optimization phase, tissue perfusion should be optimized. In the stabilization and de-escalation phases, minimal fluid infusion and safe fluid removal should be performed, respectively, while preserving organ perfusion. There is controversy surrounding the use of restrictive versus liberal fluid strategies after initial resuscitation. Fluid administration after initial resuscitation should depend upon the patient's fluid responsiveness and requires individualized management. A number of dynamic tests have been proposed to monitor fluid responsiveness, which can help clinicians decide whether to give fluid or not. The optimal timing for the initiation of vasopressor agents is unknown. Recent data suggest that early vasopressor initiation should be considered. Inotropes can be considered in patients with decreased cardiac contractility associated with impaired tissue perfusion despite adequate volume status and arterial blood pressure. Venoarterial extracorporeal membrane oxygenation should be considered for refractory septic shock with severe cardiac systolic dysfunction.
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Affiliation(s)
- Gil Joon Suh
- Department of Emergency Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Research Center for Disaster Medicine, Seoul National University Medical Research Center, Seoul, Korea
| | - Tae Gun shin
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Woon Yong Kwon
- Department of Emergency Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Research Center for Disaster Medicine, Seoul National University Medical Research Center, Seoul, Korea
| | - Kyuseok Kim
- Department of Emergency Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - You Hwan Jo
- Research Center for Disaster Medicine, Seoul National University Medical Research Center, Seoul, Korea
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Sung-Hyuk Choi
- Department of Emergency Medicine, Korea University College of Medicine, Seoul, Korea
| | - Sung Phil Chung
- Department of Emergency Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Won Young Kim
- Department of Emergency Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - for the Korean Shock Society Investigators
- Department of Emergency Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Research Center for Disaster Medicine, Seoul National University Medical Research Center, Seoul, Korea
- Department of Emergency Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Department of Emergency Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
- Department of Emergency Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
- Department of Emergency Medicine, Korea University College of Medicine, Seoul, Korea
- Department of Emergency Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Department of Emergency Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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7
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Huang W, Xiang H, Hu C, Wu T, Zhang D, Ma S, Hu B, Li J. Association of Sublingual Microcirculation Parameters and Capillary Refill Time in the Early Phase of ICU Admission. Crit Care Med 2023; 51:913-923. [PMID: 36942969 PMCID: PMC10262986 DOI: 10.1097/ccm.0000000000005851] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
OBJECTIVES This observational study was conducted to investigate capillary refill time (CRT) during the early phase of ICU admission in relationship with microvascular flow alteration and outcome in critically ill patients. DESIGN Prospective, observational, pilot study. SETTING ICU in a university hospital. PATIENTS Two hundred eighty-two critically ill adult patients admitted to the ICU. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS All patients underwent simultaneous measurements by CRT and sidestream dark field imaging within 24 hours of ICU admission. Other clinical data such as demographic characteristics, hemodynamics, laboratory values, treatment, and physiologic parameters were also included simultaneously. Microcirculatory measurements were performed at 10.2 ± 5.7 hours after ICU admission. Of the 282 included patients, 106 (37.6%) were female, the median (interquartile range) age was 63 years (53-74 yr), and the median Sequential Organ Failure Assessment (SOFA) score was 5 (2-7). The primary finding was the association between CRT and simultaneous the condition of peripheral circulation (microvascular flow index [MFI]: r = -0.4430, p < 0.001; proportion of perfused vessels: r = -0.3708, p < 0.001; heterogeneity index: r = 0.4378, p < 0.001; perfused vessel density: r = -0.1835, p = 0.0020; except total vessel density: p = 0.9641; and De Backer score: p = 0.5202) in critically ill patients. In addition, this relationship was also maintained in subgroups. Microcirculatory flow abnormalities, 28-day mortality, and SOFA score appeared to be more severe for increasing CRT. In a multivariable analysis, prolonged CRT was independently associated with microvascular flow abnormalities (MFI < 2.6; odds ratio [OR], 1.608; 95% CI, 2.1-10.2; p < 0.001). Similarly, multivariable analysis identified CRT as an independent predictor of 28-day mortality (OR, 1.296; 95% CI, 1.078-1.558; p = 0.006). CONCLUSIONS In our ICU population, a single-spot prolonged CRT was independently associated with abnormal microcirculation and increased mortality.
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Affiliation(s)
- Weipeng Huang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Wuhan, Hubei, China
| | - Hui Xiang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Wuhan, Hubei, China
| | - Chang Hu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Wuhan, Hubei, China
| | - Tong Wu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Wuhan, Hubei, China
| | - Dandan Zhang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Wuhan, Hubei, China
| | - Siqing Ma
- Department of Critical Care Medicine, Qinghai Provincial People's Hospital, Xining, Qinghai, China
| | - Bo Hu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Wuhan, Hubei, China
| | - Jianguo Li
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan Hubei, China
- Clinical Research Center of Hubei Critical Care Medicine, Wuhan, Hubei, China
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Kataria S, Singh O, Juneja D, Goel A, Bhide M, Yadav D. Hypoperfusion context as a predictor of 28-d all-cause mortality in septic shock patients: A comparative observational study. World J Clin Cases 2023; 11:3765-3779. [PMID: 37383132 PMCID: PMC10294150 DOI: 10.12998/wjcc.v11.i16.3765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/17/2023] [Accepted: 04/18/2023] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND As per the latest Surviving Sepsis Campaign guidelines, fluid resuscitation should be guided by repeated measurements of blood lactate levels until normalization. Nevertheless, raised lactate levels should be interpreted in the clinical context, as there may be other causes of elevated lactate levels. Thus, it may not be the best tool for real-time assessment of the effect of hemodynamic resuscitation, and exploring alternative resuscitation targets should be an essential research priority in sepsis.
AIM To compare the 28-d mortality in two clinical patterns of septic shock: hyperlactatemic patients with hypoperfusion context and hyperlactatemic patients without hypoperfusion context.
METHODS This prospective comparative observational study carried out on 135 adult patients with septic shock that met Sepsis-3 definitions compared patients with hyperlactatemia in a hypoperfusion context (Group 1, n = 95) and patients with hyperlactatemia in a non-hypoperfusion context (Group 2, n = 40). Hypoperfusion context was defined by a central venous saturation less than 70%, central venous-arterial PCO2 gradient [P(cv-a)CO2] ≥ 6 mmHg, and capillary refilling time (CRT) ≥ 4 s. The patients were observed for various macro and micro hemodynamic parameters at regular intervals of 0 h, 3 h, and 6 h. All-cause 28-d mortality and all other secondary objective parameters were observed at specified intervals. Nominal categorical data were compared using the χ2 or Fisher’s exact test. Non-normally distributed continuous variables were compared using the Mann-Whitney U test. Receiver operating characteristic curve analysis with the Youden index determined the cutoff values of lactate, CRT, and metabolic perfusion parameters to predict the 28-d all-cause mortality. A P value of < 0.05 was considered significant.
RESULTS Patient demographics, comorbidities, baseline laboratory, vital parameters, source of infection, baseline lactate levels, and lactate clearance at 3 h and 6 h, Sequential Organ Failure scores, need for invasive mechanical ventilation, days on mechanical ventilation, and renal replacement therapy-free days within 28 d, duration of intensive care unit stay, and hospital stay were comparable between the two groups. The stratification of patients into hypoperfusion and non-hypoperfusion context did not result in a significantly different 28-d mortality (24% vs 15%, respectively; P = 0.234). However, the patients within the hypoperfusion context with high P(cv-a)CO2 and CRT (P = 0.022) at baseline had significantly higher mortality than Group 2. The norepinephrine dose was higher in Group 1 but did not achieve statistical significance with a P > 0.05 at all measured intervals. Group 1 had a higher proportion of patients requiring vasopressin and the mean vasopressor-free days out of the total 28 d were lower in patients with hypoperfusion (18.88 ± 9.04 vs 21.08 ± 8.76; P = 0.011). The mean lactate levels and lactate clearance at 3 h and 6 h, CRT, P(cv-a)CO2 at 0 h, 3 h, and 6 h were found to be associated with 28-d mortality in patients with septic shock, with lactate levels at 6 h having the best predictive value (area under the curve lactate at 6 h: 0.845).
CONCLUSION Septic shock patients fulfilling the hypoperfusion and non-hypoperfusion context exhibited similar 28-d all-cause hospital mortality, although patients with hypoperfusion displayed a more severe circulatory dysfunction. Lactate levels at 6 h had a better predictive value in predicting 28-d mortality than other parameters. Persistently high P(cv-a)CO2 (> 6 mmHg) or increased CRT (> 4 s) at 3 h and 6 h during early resuscitation can be a valuable additional aid for prognostication of septic shock patients.
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Affiliation(s)
- Sahil Kataria
- Institute of Critical Care Medicine, Max Super Speciality Hospital, Saket, New Delhi 110017, India
| | - Omender Singh
- Institute of Critical Care Medicine, Max Super Speciality Hospital, Saket, New Delhi 110017, India
| | - Deven Juneja
- Institute of Critical Care Medicine, Max Super Speciality Hospital, Saket, New Delhi 110017, India
| | - Amit Goel
- Institute of Critical Care Medicine, Max Super Speciality Hospital, Saket, New Delhi 110017, India
| | - Madhura Bhide
- Institute of Critical Care Medicine, Max Super Speciality Hospital, Saket, New Delhi 110017, India
| | - Devraj Yadav
- Institute of Critical Care Medicine, Max Super Speciality Hospital, Saket, New Delhi 110017, India
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9
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Bruno RR, Wollborn J, Fengler K, Flick M, Wunder C, Allgäuer S, Thiele H, Schemmelmann M, Hornemann J, Moecke HME, Demirtas F, Palici L, Franz M, Saugel B, Kattan E, De Backer D, Bakker J, Hernandez G, Kelm M, Jung C. Direct assessment of microcirculation in shock: a randomized-controlled multicenter study. Intensive Care Med 2023; 49:645-655. [PMID: 37278760 PMCID: PMC10242221 DOI: 10.1007/s00134-023-07098-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 05/08/2023] [Indexed: 06/07/2023]
Abstract
PURPOSE Shock is a life-threatening condition characterized by substantial alterations in the microcirculation. This study tests the hypothesis that considering sublingual microcirculatory perfusion variables in the therapeutic management reduces 30-day mortality in patients admitted to the intensive care unit (ICU) with shock. METHODS This randomized, prospective clinical multicenter trial-recruited patients with an arterial lactate value above two mmol/L, requiring vasopressors despite adequate fluid resuscitation, regardless of the cause of shock. All patients received sequential sublingual measurements using a sidestream-dark field (SDF) video microscope at admission to the intensive care unit (± 4 h) and 24 (± 4) hours later that was performed blindly to the treatment team. Patients were randomized to usual routine or to integrating sublingual microcirculatory perfusion variables in the therapy plan. The primary endpoint was 30-day mortality, secondary endpoints were length of stay on the ICU and the hospital, and 6-months mortality. RESULTS Overall, we included 141 patients with cardiogenic (n = 77), post cardiac surgery (n = 27), or septic shock (n = 22). 69 patients were randomized to the intervention and 72 to routine care. No serious adverse events (SAEs) occurred. In the interventional group, significantly more patients received an adjustment (increase or decrease) in vasoactive drugs or fluids (66.7% vs. 41.8%, p = 0.009) within the next hour. Microcirculatory values 24 h after admission and 30-day mortality did not differ [crude: 32 (47.1%) patients versus 25 (34.7%), relative risk (RR) 1.39 (0.91-1.97); Cox-regression: hazard ratio (HR) 1.54 (95% confidence interval (CI) 0.90-2.66, p = 0.118)]. CONCLUSION Integrating sublingual microcirculatory perfusion variables in the therapy plan resulted in treatment changes that do not improve survival at all.
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Affiliation(s)
- Raphael Romano Bruno
- Medical Faculty, Department of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University Duesseldorf, Moorenstraße 5, 40225, Duesseldorf, Germany
| | - Jakob Wollborn
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
| | - Karl Fengler
- Department of Cardiology, Heart Center Leipzig at University of Leipzig, Leipzig, Germany
| | - Moritz Flick
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Wunder
- Department of Anesthesiology and Intensive Care Medicine, Robert-Bosch-Krankenhaus, Stuttgart, Germany
| | | | - Holger Thiele
- Department of Cardiology, Heart Center Leipzig at University of Leipzig, Leipzig, Germany
| | - Mara Schemmelmann
- Medical Faculty, Department of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University Duesseldorf, Moorenstraße 5, 40225, Duesseldorf, Germany
| | - Johanna Hornemann
- Medical Faculty, Department of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University Duesseldorf, Moorenstraße 5, 40225, Duesseldorf, Germany
| | - Helene Mathilde Emilie Moecke
- Medical Faculty, Department of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University Duesseldorf, Moorenstraße 5, 40225, Duesseldorf, Germany
| | - Filiz Demirtas
- Medical Faculty, Department of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University Duesseldorf, Moorenstraße 5, 40225, Duesseldorf, Germany
| | - Lina Palici
- Medical Faculty, Department of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University Duesseldorf, Moorenstraße 5, 40225, Duesseldorf, Germany
| | - Marcus Franz
- Department of Internal Medicine I, University Hospital Jena, Jena, Germany
| | - Bernd Saugel
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eduardo Kattan
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Daniel De Backer
- Department of Intensive Care, CHIREC Hospitals, Université Libre de Bruxelles, Brussels, Belgium
| | - Jan Bakker
- NYU Langone Health and Columbia University Irving Medical Center, New York, USA
- Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Glenn Hernandez
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Malte Kelm
- Medical Faculty, Department of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University Duesseldorf, Moorenstraße 5, 40225, Duesseldorf, Germany
- CARID (Cardiovascular Research Institute Düsseldorf), Düsseldorf, Germany
| | - Christian Jung
- Medical Faculty, Department of Cardiology, Pulmonology and Vascular Medicine, Heinrich-Heine-University Duesseldorf, Moorenstraße 5, 40225, Duesseldorf, Germany.
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10
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Coen D. Fluids and vasopressors in septic shock: basic knowledge for a first approach in the emergency department. EMERGENCY CARE JOURNAL 2023. [DOI: 10.4081/ecj.2023.10810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Much research, both pathophysiological and clinical, has been produced about septic shock during the last 20 years. Nevertheless, many aspects of treatment are still controversial, among these the approach to the administration of fluids and vasopressors. After the first clinical trial on Early goal-directed therapy (EGDT) was published, a liberal approach to the use of fluids and conservative use of vasopressors prevailed, but in recent years a more restrictive use of fluids and an earlier introduction of vasopressors seem to be preferred. Although both treatments are based on sound pathophysiological knowledge, clinical evidence is still inadequate and somehow controversial. In this non-systematic review, recent research on the hemodynamics of septic shock and its treatment with fluids and inotropes is discussed. As a conclusion, general indications are proposed for a practical approach to patients in septic shock.
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11
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Pfortmueller CA, Dabrowski W, Malbrain MLNG. Fluid de-resuscitation in critical illness - A journey into uncertain territory. J Crit Care 2023:154249. [PMID: 36870802 DOI: 10.1016/j.jcrc.2022.154249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 03/06/2023]
Affiliation(s)
- Carmen Andrea Pfortmueller
- Department of Intensive Care, Inselspital, Bern University Hospital and University of Bern, Bern, Switzerland.
| | - Wojciech Dabrowski
- First Department of Anaesthesiology and Intensive Therapy, Medical University of Lublin, Lublin, Poland
| | - Manu L N G Malbrain
- First Department of Anaesthesiology and Intensive Therapy, Medical University of Lublin, Lublin, Poland; International Fluid Academy, Lovenjoel, Belgium; Medical Data Management, Medaman, Geel, Belgium
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12
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Cai X, Zhuang W. Application value of Doppler ultrasound in renal hemodynamic monitoring in patients with septic shock. Panminerva Med 2023; 65:108-110. [PMID: 34142791 DOI: 10.23736/s0031-0808.21.04423-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xue Cai
- Emergency Intensive Care Unit, Huizhou Municipal Central Hospital, Huizhou, China -
| | - Wenwen Zhuang
- Department of General Practice, Huizhou Municipal Central Hospital, Huizhou, China
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13
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Contreras R, Hernández G, Valenzuela ED, González C, Ulloa R, Soto D, Castro R, Guzmán C, Oviedo V, Alegría L, Vidal D, Morales S, Ospina-Tascón GA, Bakker J, Kattan E. Exploring the relationship between capillary refill time, skin blood flow and microcirculatory reactivity during early resuscitation of patients with septic shock: a pilot study. J Clin Monit Comput 2022; 37:839-845. [PMID: 36495360 DOI: 10.1007/s10877-022-00946-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 11/08/2022] [Indexed: 12/14/2022]
Abstract
Capillary refill time (CRT), a costless and widely available tool, has emerged as a promising target to guide septic shock resuscitation. However, it has yet to gain universal acceptance due to its potential inter-observer variability. Standardization of CRT assessment may minimize this problem, but few studies have compared this approach with techniques that directly assess skin blood flow (SBF). Our objective was to determine if an abnormal CRT is associated with impaired SBF and microvascular reactivity in early septic shock patients. Twelve septic shock patients were subjected to multimodal perfusion and hemodynamic monitoring for 24 h. Three time-points (0, 1, and 24 h) were registered for each patient. SBF was measured by laser doppler. We performed a baseline SBF measurement and two microvascular reactivity tests: one with a thermal challenge at 44 °C and other with a vascular occlusion test. Ten healthy volunteers were evaluated to obtain reference values. The patients (median age 70 years) exhibited a 28-day mortality of 50%. Baseline CRT was 3.3 [2.7-7.3] seconds. In pooled data analysis, abnormal CRT presented a significantly lower SBF when compared to normal CRT [44 (13.3-80.3) vs 193.2 (99.4-285) APU, p = 0.0001]. CRT was strongly associated with SBF (R2 0.76, p < 0.0001). An abnormal CRT also was associated with impaired thermal challenge and vascular occlusion tests. Abnormal CRT values observed during early septic shock resuscitation are associated with impaired skin blood flow, and abnormal skin microvascular reactivity. Future studies should confirm these results.
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14
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De Backer D, Cecconi M, Chew MS, Hajjar L, Monnet X, Ospina-Tascón GA, Ostermann M, Pinsky MR, Vincent JL. A plea for personalization of the hemodynamic management of septic shock. Crit Care 2022; 26:372. [PMID: 36457089 PMCID: PMC9714237 DOI: 10.1186/s13054-022-04255-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
Although guidelines provide excellent expert guidance for managing patients with septic shock, they leave room for personalization according to patients' condition. Hemodynamic monitoring depends on the evolution phase: salvage, optimization, stabilization, and de-escalation. Initially during the salvage phase, monitoring to identify shock etiology and severity should include arterial pressure and lactate measurements together with clinical examination, particularly skin mottling and capillary refill time. Low diastolic blood pressure may trigger vasopressor initiation. At this stage, echocardiography may be useful to identify significant cardiac dysfunction. During the optimization phase, echocardiographic monitoring should be pursued and completed by the assessment of tissue perfusion through central or mixed-venous oxygen saturation, lactate, and carbon dioxide veno-arterial gradient. Transpulmonary thermodilution and the pulmonary artery catheter should be considered in the most severe patients. Fluid therapy also depends on shock phases. While administered liberally during the resuscitation phase, fluid responsiveness should be assessed during the optimization phase. During stabilization, fluid infusion should be minimized. In the de-escalation phase, safe fluid withdrawal could be achieved by ensuring tissue perfusion is preserved. Norepinephrine is recommended as first-line vasopressor therapy, while vasopressin may be preferred in some patients. Essential questions remain regarding optimal vasopressor selection, combination therapy, and the most effective and safest escalation. Serum renin and the angiotensin I/II ratio may identify patients who benefit most from angiotensin II. The optimal therapeutic strategy for shock requiring high-dose vasopressors is scant. In all cases, vasopressor therapy should be individualized, based on clinical evaluation and blood flow measurements to avoid excessive vasoconstriction. Inotropes should be considered in patients with decreased cardiac contractility associated with impaired tissue perfusion. Based on pharmacologic properties, we suggest as the first test a limited dose of dobutamine, to add enoximone or milrinone in the second line and substitute or add levosimendan if inefficient. Regarding adjunctive therapies, while hydrocortisone is nowadays advised in patients receiving high doses of vasopressors, patients responding to corticosteroids may be identified in the future by the analysis of selected cytokines or specific transcriptomic endotypes. To conclude, although some general rules apply for shock management, a personalized approach should be considered for hemodynamic monitoring and support.
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Affiliation(s)
- Daniel De Backer
- grid.4989.c0000 0001 2348 0746Department of Intensive Care, CHIREC Hospitals, Université Libre de Bruxelles, Boulevard du Triomphe 201, 1160 Brussels, Belgium
| | - Maurizio Cecconi
- grid.417728.f0000 0004 1756 8807Humanitas Clinical and Research Center – IRCCS, Rozzano, MI Italy ,grid.452490.eDepartment of Biomedical Sciences, Humanitas University, Pieve Emanuele, MI Italy
| | - Michelle S. Chew
- grid.5640.70000 0001 2162 9922Department of Anaesthesia and Intensive Care, Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Ludhmila Hajjar
- grid.11899.380000 0004 1937 0722Departamento de Cardiopneumologia, InCor, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Xavier Monnet
- grid.460789.40000 0004 4910 6535AP-HP, Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU 4 CORREVE, Inserm UMR S_999, FHU SEPSIS, CARMAS, Université Paris-Saclay, 78 Rue du Général Leclerc, 94270 Le Kremlin-Bicêtre, France
| | - Gustavo A. Ospina-Tascón
- grid.477264.4Department of Intensive Care, Fundación Valle del Lili, Cali, Colombia ,grid.440787.80000 0000 9702 069XTranslational Research Laboratory in Critical Care Medicine (TransLab-CCM), Universidad Icesi, Cali, Colombia
| | - Marlies Ostermann
- grid.420545.20000 0004 0489 3985Department of Intensive Care, King’s College London, Guy’s & St Thomas’ Hospital, London, UK
| | - Michael R. Pinsky
- grid.21925.3d0000 0004 1936 9000Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA USA
| | - Jean-Louis Vincent
- grid.4989.c0000 0001 2348 0746Dept of Intensive Care, Erasme Univ Hospital, Université Libre de Bruxelles, Brussels, Belgium
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15
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Li D, Liu S, Zhang J, Cheng W, Mao J, Cui N. Exploring dynamic change in arterial base excess with patient outcome and lactate clearance in the intensive care unit by hierarchical time-series clustering. Front Med (Lausanne) 2022; 9:1020806. [DOI: 10.3389/fmed.2022.1020806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 10/19/2022] [Indexed: 11/10/2022] Open
Abstract
BackgroundHyperlactatemia is common in the intensive care unit (ICU) and relevant to prognosis, while the process of lactate normalization requires a relatively long period. We hypothesized that the dynamic change in base excess (BE) would be associated with ICU mortality and lactate clearance.MethodsWe performed a retrospective cohort study of adult patients with hyperlactatemia admitted to the ICU from 2016 to 2021. The patients were divided into two groups according to whether the peak BE in 12 h was reached in the first 6 h. We compared ICU mortality and lactate clearance at 6 and 12 h after ICU admission.ResultsDuring the study period, 1,608 patients were admitted to the ICU with a lactate concentration of >2.0 mmol/L and stayed in the ICU for >24 h. The mortality rate was 11.2%. The patients were divided into two groups according to whether the peak BE was reached in the first 6 h following ICU admission: Peak BE12h ≤ 6h and Peak BE12h > 6h. The patients were also recorded as whether bicarbonate treatment was received (bicarbonate group, CRRT included) or not (non-bicarbonate group). Furthermore, lactic acid clearance patterns were identified by time-series clustering (TSC) using various algorithms and distance measures. We compared ICU mortality and lactate clearance at 6 and 12 h after ICU admission with logistic regression. After adjustment for other confounding factors, we found that Peak BE12h > 6h was independently associated with ICU mortality with an odds ratio of 2.231 (p = 0.036) in the bicarbonate group and 2.359 (p < 0.005) in the non-bicarbonate group. In addition, based on the definition of >10% lactate clearance at 6 h or >30% at 12 h, we found that Peak BE12h ≤ 6h had 85.2% sensitivity and 38.1% specificity for effective lactate clearance. In time-series clustering analysis, four categories were discriminated, and pattern of lactic acid clearance reveals the early prognostic value of BE in clearance of lactic acid.ConclusionA prolonged time to reaching the peak BE was independently associated with ICU mortality. In patients with hyperlactatemia, Peak BE12h ≤ 6h could be used as an indicator to predict effective lactate clearance.
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16
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Messina A, Bakker J, Chew M, De Backer D, Hamzaoui O, Hernandez G, Myatra SN, Monnet X, Ostermann M, Pinsky M, Teboul JL, Cecconi M. Pathophysiology of fluid administration in critically ill patients. Intensive Care Med Exp 2022; 10:46. [PMID: 36329266 PMCID: PMC9633880 DOI: 10.1186/s40635-022-00473-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022] Open
Abstract
Fluid administration is a cornerstone of treatment of critically ill patients. The aim of this review is to reappraise the pathophysiology of fluid therapy, considering the mechanisms related to the interplay of flow and pressure variables, the systemic response to the shock syndrome, the effects of different types of fluids administered and the concept of preload dependency responsiveness. In this context, the relationship between preload, stroke volume (SV) and fluid administration is that the volume infused has to be large enough to increase the driving pressure for venous return, and that the resulting increase in end-diastolic volume produces an increase in SV only if both ventricles are operating on the steep part of the curve. As a consequence, fluids should be given as drugs and, accordingly, the dose and the rate of administration impact on the final outcome. Titrating fluid therapy in terms of overall volume infused but also considering the type of fluid used is a key component of fluid resuscitation. A single, reliable, and feasible physiological or biochemical parameter to define the balance between the changes in SV and oxygen delivery (i.e., coupling “macro” and “micro” circulation) is still not available, making the diagnosis of acute circulatory dysfunction primarily clinical. Fluids are drugs used in patients with shock to increase the cardiac output with the aim to improve oxygen delivery to the cells. The response to fluid administration is determined by the physiological interaction of cardiac function and venous return. In septic shock, the beneficial clinical response of fluid administration is rapidly reduced after few hours and fluid titration is crucial to avoid detrimental fluid overload. The fluid challenge is a fluid bolus given at a defined quantity and rate to assess fluid responsiveness. The ideal fluid for critically ill patients does not exist; however, crystalloids should be used as first choice. Balanced crystalloid solutions may be associated with better outcomes but the evidence is still low. Albumin infusion may have a role in already fluid resuscitated patients at risk of fluid overload. Fluid administration is integrated into the complex management of pressure and flow “macro” hemodynamic variables, coupled to the “micro” local tissue flow distribution and regional metabolism. Macro-variables are managed by measuring systemic blood pressure and evaluating the global cardiac function. The critical threshold of oxygen delivery to the cells is difficult to estimate, however, several indexes and clinical signs may be considered as surrogate of that, and integrated in a decision-making process at the bedside.
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Affiliation(s)
- Antonio Messina
- IRCCS Humanitas Research Hospital, Via Alessandro Manzoni 56, Rozzano, 20089, Milan, Italy. .,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.
| | - Jan Bakker
- NYU Langone Health and Columbia University Irving Medical Center, New York, USA.,Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Michelle Chew
- Department of Anaesthesia and Intensive Care, Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Daniel De Backer
- Department of Intensive Care, CHIREC Hospitals, Université Libre de Bruxelles, Brussels, Belgium
| | - Olfa Hamzaoui
- Service de Reanimation PolyvalenteHopital Antoine Béclère, Hopitaux Universitaires Paris-Saclay, Clamart, France
| | - Glenn Hernandez
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sheila Nainan Myatra
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India
| | - Xavier Monnet
- Hôpitaux Universitaires Paris-Sud, Hôpital de Bicêtre, Medical Intensive Care Unit, Le Kremlin-Bicêtre, Paris, France
| | - Marlies Ostermann
- Department of Intensive Care, King's College London, Guy's & St Thomas' Hospital, London, UK
| | - Michael Pinsky
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jean-Louis Teboul
- Hôpitaux Universitaires Paris-Sud, Hôpital de Bicêtre, Medical Intensive Care Unit, Le Kremlin-Bicêtre, Paris, France
| | - Maurizio Cecconi
- IRCCS Humanitas Research Hospital, Via Alessandro Manzoni 56, Rozzano, 20089, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
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17
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Pinsky MR, Cecconi M, Chew MS, De Backer D, Douglas I, Edwards M, Hamzaoui O, Hernandez G, Martin G, Monnet X, Saugel B, Scheeren TWL, Teboul JL, Vincent JL. Effective hemodynamic monitoring. Crit Care 2022; 26:294. [PMID: 36171594 PMCID: PMC9520790 DOI: 10.1186/s13054-022-04173-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 09/14/2022] [Indexed: 11/10/2022] Open
Abstract
AbstractHemodynamic monitoring is the centerpiece of patient monitoring in acute care settings. Its effectiveness in terms of improved patient outcomes is difficult to quantify. This review focused on effectiveness of monitoring-linked resuscitation strategies from: (1) process-specific monitoring that allows for non-specific prevention of new onset cardiovascular insufficiency (CVI) in perioperative care. Such goal-directed therapy is associated with decreased perioperative complications and length of stay in high-risk surgery patients. (2) Patient-specific personalized resuscitation approaches for CVI. These approaches including dynamic measures to define volume responsiveness and vasomotor tone, limiting less fluid administration and vasopressor duration, reduced length of care. (3) Hemodynamic monitoring to predict future CVI using machine learning approaches. These approaches presently focus on predicting hypotension. Future clinical trials assessing hemodynamic monitoring need to focus on process-specific monitoring based on modifying therapeutic interventions known to improve patient-centered outcomes.
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18
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Shaker A, Hasanin A, Nagy M, Mostafa M, Fouad AZ, Mohamed H, Abdallah AS, Elsayad M. The Use of Lactate-Capillary Refill Time Product as Novel Index for Tissue Perfusion in Patients with Abdominal Sepsis: A Prospective Observational Study. Int J Gen Med 2022; 15:7443-7448. [PMID: 36172088 PMCID: PMC9512536 DOI: 10.2147/ijgm.s380195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 09/19/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Ahmed Shaker
- Department of Anesthesia and Critical Care Medicine, Cairo University, Cairo, Egypt
| | - Ahmed Hasanin
- Department of Anesthesia and Critical Care Medicine, Cairo University, Cairo, Egypt
- Correspondence: Ahmed Hasanin, Department of anesthesia and critical care medicine, Faculty of Medicine, 01 elsarayah Street, Elmanyal, Cairo, Egypt, Tel +201000365115, Fax +20224168736, Email
| | - Mostafa Nagy
- Department of Anesthesia and Critical Care Medicine, Cairo University, Cairo, Egypt
| | - Maha Mostafa
- Department of Anesthesia and Critical Care Medicine, Cairo University, Cairo, Egypt
| | - Ahmed Z Fouad
- Department of Anesthesia and Critical Care Medicine, Cairo University, Cairo, Egypt
| | - Hassan Mohamed
- Department of Anesthesia and Critical Care Medicine, Cairo University, Cairo, Egypt
| | | | - Mohamed Elsayad
- Department of Anesthesia and Critical Care Medicine, Cairo University, Cairo, Egypt
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19
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Raia L, Zafrani L. Endothelial Activation and Microcirculatory Disorders in Sepsis. Front Med (Lausanne) 2022; 9:907992. [PMID: 35721048 PMCID: PMC9204048 DOI: 10.3389/fmed.2022.907992] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/16/2022] [Indexed: 11/19/2022] Open
Abstract
The vascular endothelium is crucial for the maintenance of vascular homeostasis. Moreover, in sepsis, endothelial cells can acquire new properties and actively participate in the host's response. If endothelial activation is mostly necessary and efficient in eliminating a pathogen, an exaggerated and maladaptive reaction leads to severe microcirculatory damage. The microcirculatory disorders in sepsis are well known to be associated with poor outcome. Better recognition of microcirculatory alteration is therefore essential to identify patients with the worse outcomes and to guide therapeutic interventions. In this review, we will discuss the main features of endothelial activation and dysfunction in sepsis, its assessment at the bedside, and the main advances in microcirculatory resuscitation.
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Affiliation(s)
- Lisa Raia
- Medical Intensive Care Unit, Hôpital Saint-Louis, Assistance Publique des Hôpitaux de Paris, Paris, France
| | - Lara Zafrani
- Medical Intensive Care Unit, Hôpital Saint-Louis, Assistance Publique des Hôpitaux de Paris, Paris, France
- INSERM UMR 976, University of Paris Cité, Paris, France
- *Correspondence: Lara Zafrani
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20
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Kattan E, Hernández G. The role of peripheral perfusion markers and lactate in septic shock resuscitation. JOURNAL OF INTENSIVE MEDICINE 2021; 2:17-21. [PMID: 36789233 PMCID: PMC9924002 DOI: 10.1016/j.jointm.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 11/04/2021] [Accepted: 11/18/2021] [Indexed: 10/19/2022]
Abstract
Septic shock leads to progressive hypoperfusion and tissue hypoxia. Unfortunately, numerous uncertainties exist around the best monitoring strategy, as available techniques are mere surrogates for these phenomena. Nevertheless, central venous oxygen saturation (ScvO2), venous-to-arterial CO2 gap, and lactate normalization have been fostered as resuscitation targets for septic shock. Moreover, recent evidence has challenged the central role of lactate. Following the ANDROMEDA-SHOCK trial, capillary refill time (CRT) has become a promissory target, considering the observed benefits in mortality, treatment intensity, and organ dysfunction. Interpretation of CRT within a multimodal approach may aid clinicians in guiding resuscitative interventions and stop resuscitation earlier, thus avoiding the risk of morbid fluid overload. Integrative assessment of a patient's perfusion status can be easily performed using bedside clinical tools. Based on its fast kinetics and recent supporting evidence, targeting CRT (within a holistic assessment of perfusion) may improve outcomes in septic shock resuscitation.
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21
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Liu J, Yan H, Li Y. Hyperlactatemia associated with diabetic ketoacidosis in pediatric intensive care unit. BMC Endocr Disord 2021; 21:110. [PMID: 34044824 PMCID: PMC8157405 DOI: 10.1186/s12902-021-00776-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 05/20/2021] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Children with diabetic ketoacidosis often have elevated lactate. In this study, we investigated the clinical variables associated with hyperlactatemia in children with diabetic ketoacidosis. METHODS We designed a single-center retrospective descriptive study of children with diabetic ketoacidosis in a pediatric intensive care unit. RESULTS Of the 107 patients with diabetic ketoacidosis included in the analysis, 61 developed hyperlactatemia. Multivariate logistic regression analysis showed that heart rate (p = 0.003),diastolic blood pressure (p = 0.001) and stage of severity (p = 0.042) were independently associated with the development of hyperlactatemia in diabetic ketoacidosis. We found that lactate level was not significantly associated with length of hospital stay (p = 0.115) or the length of time to diabetic ketoacidosis resolution (p = 0.143). CONCLUSIONS Children with diabetic ketoacidosis presenting with severer stage, elevated heart rate and higher diastolic blood pressure may be prone to hyperlactatemia. Hyperlactatemia was not associated with length of time to DKA resolution and length of hospital stay.
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Affiliation(s)
- Jingwei Liu
- Department of Pediatric Intensive Care Unit, The First Hospital of Jilin University, Xin Min Street, 130021, Changchun, China
| | - Haibo Yan
- Department of Pediatric Intensive Care Unit, The First Hospital of Jilin University, Xin Min Street, 130021, Changchun, China
| | - Yumei Li
- Department of Pediatric Intensive Care Unit, The First Hospital of Jilin University, Xin Min Street, 130021, Changchun, China.
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22
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Abstract
PURPOSE OF REVIEW Current goals of resuscitation in septic shock are mainly a fixed volume of fluids and vasopressors to correct hypotension and improve tissue perfusion indicated by decreasing lactate levels. RECENT FINDINGS Abnormal peripheral perfusion by objective and subjective parameters are associated with increased mortality in various phases of the treatment of critically ill patients including patients with septic shock. Ongoing resuscitation in septic shock patients with normal peripheral perfusion is not associated with improved outcome, rather with increased mortality. Mitigation of fluid resuscitation by using parameters of peripheral perfusion in septic shock seems to be safe. SUMMARY Septic shock patients with normal peripheral perfusion represent a different clinical phenotype of patients that might benefit from limited resuscitation efforts. Parameters of peripheral perfusion could be used to guide the individualization of patients with septic shock.
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Monitoring skin blood flow to rapidly identify alterations in tissue perfusion during fluid removal using continuous veno-venous hemofiltration in patients with circulatory shock. Ann Intensive Care 2021; 11:59. [PMID: 33855645 PMCID: PMC8046875 DOI: 10.1186/s13613-021-00847-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/29/2021] [Indexed: 12/13/2022] Open
Abstract
Background Continuous veno-venous hemofiltration (CVVH) can be used to reduce fluid overload and tissue edema, but excessive fluid removal may impair tissue perfusion. Skin blood flow (SBF) alters rapidly in shock, so its measurement may be useful to help monitor tissue perfusion. Methods In a prospective, observational study in a 35-bed department of intensive care, all patients with shock who required fluid removal with CVVH were considered for inclusion. SBF was measured on the index finger using skin laser Doppler (Periflux 5000, Perimed, Järfälla, Sweden) for 3 min at baseline (before starting fluid removal, T0), and 1, 3 and 6 h after starting fluid removal. The same fluid removal rate was maintained throughout the study period. Patients were grouped according to absence (Group A) or presence (Group B) of altered tissue perfusion, defined as a 10% increase in blood lactate from T0 to T6 with the T6 lactate ≥ 1.5 mmol/l. Receiver operating characteristic curves were constructed and areas under the curve (AUROC) calculated to identify variables predictive of altered tissue perfusion. Data are reported as medians [25th–75th percentiles]. Results We studied 42 patients (31 septic shock, 11 cardiogenic shock); median SOFA score at inclusion was 9 [8–12]. At T0, there were no significant differences in hemodynamic variables, norepinephrine dose, lactate concentration, ScvO2 or ultrafiltration rate between groups A and B. Cardiac index and MAP did not change over time, but SBF decreased in both groups (p < 0.05) throughout the study period. The baseline SBF was lower (58[35–118] vs 119[57–178] perfusion units [PU], p = 0.03) and the decrease in SBF from T0 to T1 (ΔSBF%) higher (53[39–63] vs 21[12–24]%, p = 0.01) in group B than in group A. Baseline SBF and ΔSBF% predicted altered tissue perfusion with AUROCs of 0.83 and 0.96, respectively, with cut-offs for SBF of ≤ 57 PU (sensitivity 78%, specificity 87%) and ∆SBF% of ≥ 45% (sensitivity 92%, specificity 99%). Conclusion Baseline SBF and its early reduction after initiation of fluid removal using CVVH can predict worsened tissue perfusion, reflected by an increase in blood lactate levels. Supplementary Information The online version contains supplementary material available at 10.1186/s13613-021-00847-z.
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24
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Xantus G, Allen P, Kanizsai P. Blind spot in sepsis management - Tissue level changes in microcirculation. Physiol Int 2021. [PMID: 33844643 DOI: 10.1556/2060.2021.00011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 01/20/2021] [Indexed: 11/19/2022]
Abstract
In sepsis cytokine-mediated inflammation, clotting cascade activation and glycocalyx shedding impair both function and structure of the microcirculation, compromising adequate tissue oxygenation/perfusion. Such mismatch results in "dysoxia", an imbalance in mitochondrial respiration.Microvessel injuries can be grouped into four types: cytotoxic oedema, micro-vessel heterogeneity, sluggish/absent flow, and focal anaemia. Recognition of such diversity in microcirculatory pathology, alongside with the implementation of novel biomarkers might reveal previously unobserved heterogeneity in adults diagnosed with sepsis. Early identification of distinct subtypes may help not only to better stratify disease severity but may also provide explanation to the often seen insufficient/absent response to resuscitative treatment. Experimental evidence suggests that impaired microcirculatory flow may correlate with organ dysfunction and mortality. Therefore, reliable/reproducible diagnostic tools, that provide real-time information about the dynamic state of the microcirculation, might be practice changers in managing the critically ill.The sublingual mucosa and the nailfolds provide easy access to microcirculation via hand-held, point-of-care devices. Accessing these windows, clinicians may recognise, understand and potentially correct the underlying tissue oxygenation/perfusion mismatch. This new clinical information might facilitate an individualised approach vs protocolised care aiming to administer the right balance of intravenous fluids/vasopressors, time/dose auxiliary treatment modalities and, most importantly, might also guide determining the optimal duration of resuscitation to avoid/minimise harm and maximise benefits in sepsis management. However, before every-day clinical use of such point-of-care microcameras, validation studies are needed to establish not only feasibility but reliability and reproducibility as well.
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Affiliation(s)
- G Xantus
- 1School of Medicine, Cardiff University, Cardiff CF10 3AT, UK
| | - P Allen
- 2Rural Clinical School, College of Health and Medicine, Burnie, Tasmania, 7320, Australia
| | - P Kanizsai
- 3Department of Emergency Medicine, Clinical Centre, University of Pécs, Pécs, Hungary
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Innocenti F, Palmieri V, Stefanone VT, D'Argenzio F, Cigana M, Montuori M, Capretti E, De Paris A, Calcagno S, Tassinari I, Pini R. Prognostic stratification in septic patients with overt and cryptic shock by speckle tracking echocardiography. Intern Emerg Med 2021; 16:757-764. [PMID: 33131014 DOI: 10.1007/s11739-020-02545-3] [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: 06/30/2020] [Accepted: 10/17/2020] [Indexed: 01/25/2023]
Abstract
We evaluated the prevalence and prognostic value of left (LV) and right (RV) ventricular systolic dysfunction in the presence of overt and cryptic shock. In this prospective study, between October 2012 and June 2019, we enrolled 354 patients with sepsis, 41% with shock, among those admitted to the Emergency Department High-Dependency Unit. Patients were grouped based on the presence of shock, or by the presence of lactate levels ≥ (LAC +) or < 2 mmol/L (LAC-) evaluated within the first 24 h. By echocardiography performed within 24 h from the admission, LV systolic dysfunction was defined as global longitudinal strain (GLS) > -14%; RV systolic dysfunction as Tricuspid Annular Plane Systolic Excursion (TAPSE) < 16 mm. All-cause mortality was assessed at day-7 and day-28 follow-up. Mean values of LV GLS (-12.3 ± 3.4 vs -12.9 ± 3.8%) and TAPSE (1.8 ± 0.7 vs 1.8 ± 0.5 cm, all p = NS) were similar in patients with and in those without shock. LV GLS was significantly worse in LAC + than LAC- patients (- 11.2 ± 3.1 vs - 12.9 ± 3.7%, p = 0.001). In patients without shock, as well as in those LAC-, LV dysfunction was associated with increased day-28 mortality rate (78% vs 57% in non-survivors and survivors without shock and 74% vs 53% in non-survivors and survivors LAC-, all p < 0.01). LV (RR 2.26, 95% CI 1.37-3.74) and RV systolic dysfunction (RR 1.85, 95% CI 1.22-2.81) were associated with increased 28-day mortality rate in addition and independent to LAC + (RR 1.81, 95% CI 1.15-2.84). In conclusion, LV and RV ventricular dysfunction were independently associated with an increased mortality rate, altogether with the presence of cryptic shock.
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Affiliation(s)
- Francesca Innocenti
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy.
| | - Vittorio Palmieri
- Transplant Cardiosurgery Unit, Department of Cardiac Surgery and Transplant, Ospedale Dei Colli Monaldi-Cotugno-CTO, Naples, Italy
| | - Valerio Teodoro Stefanone
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy
| | - Federico D'Argenzio
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy
| | - Marco Cigana
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy
| | - Michele Montuori
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy
| | - Elisa Capretti
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy
| | - Anna De Paris
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy
| | - Stefano Calcagno
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy
| | - Irene Tassinari
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy
| | - Riccardo Pini
- High-Dependency Unit, Department of Clinical and Experimental Medicine, Azienda Ospedaliero-Universitaria Careggi, Lg. Brambilla 3, 50134, Firenze, Italy
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26
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Morocho JP, Martínez AF, Cevallos MM, Vasconez-Gonzalez J, Ortiz-Prado E, Barreto-Grimaldos A, Vélez-Páez JL. Prolonged Capillary Refilling as a Predictor of Mortality in Patients With Septic Shock. J Intensive Care Med 2021; 37:423-429. [PMID: 33769108 DOI: 10.1177/08850666211003507] [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: 11/17/2022]
Abstract
INTRODUCTION Microcirculatory alterations characterize septic shock; increased blood lactate level has been described as markers of microcirculation alteration in patients with septic shock. Although useful, this serological analysis is not always feasible in all settings worldwide. OBJECTIVE To determine if a prolonged capillary refilling is a predictor of mortality in patients with septic shock. METHODOLOGY A 10-months prospective cohort study was carried out on 175 patients admitted to the Intensive Care Unit (ICU) with the diagnosis of septic shock. The capillary refilling time (CRT) was evaluated Immediately upon admission and after 6 hours post-resuscitation. Traditional tissue perfusion markers were also used to compare and analyze their predictive value on mortality at 28 days. RESULTS The area under the ROC curve (AUC) to estimate mortality in patients with septic shock with CRT at admission was 0.666 (0.584-0.748), while at 6 hours was 0.819 (0.753-0.885), with a cut-off point of 4.5 seconds at admission (PPV 52.87% NPV 72.73%) and 3.5 sec at 6 hours (PPV 95.56% NPV 79.23%). In those with CRT > 3.5 seconds at 6 hours, they had a RR of 4.60, while a CRT > 4.5 seconds at admission had a RR of 1.94, with a non-survivor proportion of 95.56% for a CRT > 3.5 sec at 6 hours vs 20.77% for CRT ≤ 3.5 sec (P value < 0.001). The CRT at 6 hours showed significant differences in the survival curves with P-value < 0.001, where for values > 3.5 sec, survival at 28 days was 4.44% vs 79.20% for values ≤ 3.5 sec. CONCLUSION CRT is a strong predictor of mortality in patients with septic shock. Evaluating changes in CRT during resuscitation from septic shock might be used as an important clinical tool to predict mortality; especially in low-resources settings where using other biomarkers might be sometimes difficult.
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Affiliation(s)
| | | | | | | | - Esteban Ortiz-Prado
- One Health Global Researh Group, Universidad de las Américas, Quito, Ecuador
| | | | - Jorge Luis Vélez-Páez
- Intensive Care Unit, Hospital Pablo Arturo Suarez, Quito, Ecuador.,Intensive Care Program, Universidad Central del Ecuador, Quito, Ecuador
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Tang B, Su L, Li D, Wang Y, Liu Q, Shan G, Long Y, Liu D, Zhou X. Stepwise lactate kinetics in critically ill patients: prognostic, influencing factors, and clinical phenotype. BMC Anesthesiol 2021; 21:86. [PMID: 33740886 PMCID: PMC7977296 DOI: 10.1186/s12871-021-01293-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 03/01/2021] [Indexed: 11/25/2022] Open
Abstract
Background To investigate the optimal target e of lactate kinetics at different time during the resuscitation, the factors that influence whether the kinetics achieve the goals, and the clinical implications of different clinical phenotypes. Methods Patients with hyperlactatemia between May 1, 2013 and December 31, 2018 were retrospectively analyzed. Demographic data, basic organ function, hemodynamic parameters at ICU admission (T0) and at 6 h, 12 h, 24 h, 48 h, and 72 h, arterial blood lactate and blood glucose levels, cumulative clinical treatment conditions at different time points and final patient outcomes were collected. Results A total of 3298 patients were enrolled, and the mortality rate was 12.2%. The cutoff values of lactate kinetics for prognosis at 6 h, 12 h, 24 h, 48 h, and 72 h were 21%, 40%, 57%, 66%, and 72%. The APACHE II score, SOFA score, heart rate (HR), and blood glucose were risk factors that correlated with whether the lactate kinetics attained the target goal. Based on the pattens of the lactate kinetics, eight clinical phenotypes were proposed. The odds ratios of death for clinical phenotypes VIII, IV, and II were 4.39, 4.2, and 5.27-fold of those of clinical phenotype I, respectively. Conclusion Stepwise recovery of lactate kinetics is an important resuscitation target for patients with hyperlactatemia. The APACHE II score, SOFA score, HR, and blood glucose were independent risk factors that influenced achievement of lactate kinetic targets. The cinical phenotypes of stepwise lactate kinetics are closely related to the prognosis. Supplementary Information The online version contains supplementary material available at 10.1186/s12871-021-01293-x.
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Affiliation(s)
- Bo Tang
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.,China & State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Longxiang Su
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.,China & State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Dongkai Li
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.,China & State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Ye Wang
- Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100730, China
| | - Qianqian Liu
- Chinese Center for Disease Control and prevention, Beijing, 100050, China
| | - Guangliang Shan
- Department of Epidemiology and Statistics, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, 100730, China
| | - Yun Long
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.,China & State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Dawei Liu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.,China & State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Xiang Zhou
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China. .,China & State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
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Khanna AK, Karamchandani K. Macrocirculation and Microcirculation: The "Batman and Superman" Story of Critical Care Resuscitation. Anesth Analg 2021; 132:280-283. [PMID: 33177325 DOI: 10.1213/ane.0000000000005272] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ashish K Khanna
- From the Department of Anesthesiology, Section on Critical Care Medicine, Wake Forest School of Medicine, Wake Forest Baptist Health Network, Winston-Salem, North Carolina.,Outcomes Research Consortium, Cleveland, Ohio
| | - Kunal Karamchandani
- Department of Anesthesiology & Perioperative Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania
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Biochemical markers for clinical monitoring of tissue perfusion. Mol Cell Biochem 2021; 476:1313-1326. [PMID: 33387216 PMCID: PMC7921020 DOI: 10.1007/s11010-020-04019-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/09/2020] [Indexed: 12/25/2022]
Abstract
The assessment and monitoring of the tissue perfusion is extremely important in critical conditions involving circulatory shock. There is a wide range of established methods for the assessment of cardiac output as a surrogate of oxygen delivery to the peripheral tissues. However, the evaluation of whether particular oxygen delivery is sufficient to ensure cellular metabolic demands is more challenging. In recent years, specific biochemical parameters have been described to indicate the status between tissue oxygen demands and supply. In this review, the authors summarize the application of some of these biochemical markers, including mixed venous oxygen saturation (SvO2), lactate, central venous–arterial carbon dioxide difference (PCO2 gap), and PCO2 gap/central arterial-to-venous oxygen difference (Ca–vO2) for hemodynamic assessment of tissue perfusion. The thorough monitoring of the adequacy of tissue perfusion and oxygen supply in critical conditions is essential for the selection of the most appropriate therapeutic strategy and it is associated with improved clinical outcomes.
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30
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Sheridan DC, Cloutier R, Kibler A, Hansen ML. Cutting-Edge Technology for Rapid Bedside Assessment of Capillary Refill Time for Early Diagnosis and Resuscitation of Sepsis. Front Med (Lausanne) 2020; 7:612303. [PMID: 33425956 PMCID: PMC7793710 DOI: 10.3389/fmed.2020.612303] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/26/2020] [Indexed: 12/13/2022] Open
Abstract
Sepsis currently affects over 30 million people globally with a mortality rate of ~30%. Prompt Emergency Department diagnosis and initiation of resuscitation improves outcomes; data has found an 8% increase in mortality for every hour delay in diagnosis. Once sepsis is recognized, the current Surviving Sepsis Guidelines for adult patients mandate the initiation of antibiotics within 3 h of emergency department triage as well as 30 milliliters per kilogram of intravenous fluids. While these are important parameters to follow, many emergency departments fail to meet these goals for a variety of reasons including turnaround on blood tests such as the serum lactate that may be delayed or require expensive laboratory equipment. However, patients routinely have vital signs assessed and measured in triage within 30 min of presentation. This creates a unique opportunity for implementation point for cutting-edge technology to significantly reduce the time to diagnosis of potentially septic patients allowing for earlier initiation of treatment. In addition to the practical and clinical difficulties with early diagnosis of sepsis, recent clinical trials have shown higher morbidity and mortality when septic patients are over-resuscitated. Technology allowing more real time monitoring of a patient's physiologic responses to resuscitation may allow for more individualized care in emergency department and critical care settings. One such measure at the bedside is capillary refill. This has shown favor in the ability to differentiate subsets of patients who may or may not need resuscitation and interpreting blood values more accurately (1, 2). This is a well-recognized measure of distal perfusion that has been correlated to sepsis outcomes. This physical exam finding is performed routinely, however, there is significant variability in the measurement based on who is performing it. Therefore, technology allowing rapid, objective, non-invasive measurement of capillary refill could improve sepsis recognition compared to algorithms that require lab tests included lactate or white blood count. This manuscript will discuss the broad application of capillary refill to resuscitation care and sepsis in particular for adult patients but much can be applied to pediatrics as well. The authors will then introduce a new technology that has been developed through a problem-based innovation approach to allow clinicians rapid assessment of end-organ perfusion at the bedside or emergency department triage and be incorporated into the electronic medical record. Future applications for identifying patient decompensation in the prehospital and home environment will also be discussed. This new technology has 3 significant advantages: [1] the use of reflected light technology for capillary refill assessment to provide deeper tissue penetration with less signal-to-noise ratio than transmitted infrared light, [2] the ability to significantly improve clinical outcomes without large changes to clinical workflow or provider practice, and [3] it can be used by individuals with minimal training and even in low resource settings to increase the utility of this technology. It should be noted that this perspective focuses on the utility of capillary refill for sepsis care, but it could be considered the next standard of care vital sign for assessment of end-organ perfusion. The ultimate goal for this sensor is to integrate it into existing monitors within the healthcare system.
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Affiliation(s)
- David C. Sheridan
- Department of Emergency Medicine, Oregon Health and Science University, Portland, OR, United States
- Promedix Inc., Portland, OR, United States
| | - Robert Cloutier
- Department of Emergency Medicine, Oregon Health and Science University, Portland, OR, United States
| | | | - Matthew L. Hansen
- Department of Emergency Medicine, Oregon Health and Science University, Portland, OR, United States
- Promedix Inc., Portland, OR, United States
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Abstract
PURPOSE OF REVIEW Currently, the treatment of patients with shock is focused on the clinical symptoms of shock. In the early phase, this is usually limited to heart rate, blood pressure, lactate levels and urine output. However, as the ultimate goal of resuscitation is the improvement in microcirculatory perfusion the question is whether these currently used signs of shock and the improvement in these signs actually correspond to the changes in the microcirculation. RECENT FINDINGS Recent studies have shown that during the development of shock the deterioration in the macrocirculatory parameters are followed by the deterioration of microcirculatory perfusion. However, in many cases the restoration of adequate macrocirculatory parameters is frequently not associated with improvement in microcirculatory perfusion. This relates not only to the cause of shock, where there are some differences between different forms of shock, but also to the type of treatment. SUMMARY The improvement in macrohemodynamics during the resuscitation is not consistently followed by subsequent changes in the microcirculation. This may result in both over-resuscitation and under-resuscitation leading to increased morbidity and mortality. In this article the principles of coherence and the monitoring of the microcirculation are reviewed.
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Castro R, Kattan E, Ferri G, Pairumani R, Valenzuela ED, Alegría L, Oviedo V, Pavez N, Soto D, Vera M, Santis C, Astudillo B, Cid MA, Bravo S, Ospina-Tascón G, Bakker J, Hernández G. Effects of capillary refill time-vs. lactate-targeted fluid resuscitation on regional, microcirculatory and hypoxia-related perfusion parameters in septic shock: a randomized controlled trial. Ann Intensive Care 2020; 10:150. [PMID: 33140173 PMCID: PMC7606372 DOI: 10.1186/s13613-020-00767-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 10/17/2020] [Indexed: 02/08/2023] Open
Abstract
Background Persistent hyperlactatemia has been considered as a signal of tissue hypoperfusion in septic shock patients, but multiple non-hypoperfusion-related pathogenic mechanisms could be involved. Therefore, pursuing lactate normalization may lead to the risk of fluid overload. Peripheral perfusion, assessed by the capillary refill time (CRT), could be an effective alternative resuscitation target as recently demonstrated by the ANDROMEDA-SHOCK trial. We designed the present randomized controlled trial to address the impact of a CRT-targeted (CRT-T) vs. a lactate-targeted (LAC-T) fluid resuscitation strategy on fluid balances within 24 h of septic shock diagnosis. In addition, we compared the effects of both strategies on organ dysfunction, regional and microcirculatory flow, and tissue hypoxia surrogates. Results Forty-two fluid-responsive septic shock patients were randomized into CRT-T or LAC-T groups. Fluids were administered until target achievement during the 6 h intervention period, or until safety criteria were met. CRT-T was aimed at CRT normalization (≤ 3 s), whereas in LAC-T the goal was lactate normalization (≤ 2 mmol/L) or a 20% decrease every 2 h. Multimodal perfusion monitoring included sublingual microcirculatory assessment; plasma-disappearance rate of indocyanine green; muscle oxygen saturation; central venous-arterial pCO2 gradient/ arterial-venous O2 content difference ratio; and lactate/pyruvate ratio. There was no difference between CRT-T vs. LAC-T in 6 h-fluid boluses (875 [375–2625] vs. 1500 [1000–2000], p = 0.3), or balances (982[249–2833] vs. 15,800 [740–6587, p = 0.2]). CRT-T was associated with a higher achievement of the predefined perfusion target (62 vs. 24, p = 0.03). No significant differences in perfusion-related variables or hypoxia surrogates were observed. Conclusions CRT-targeted fluid resuscitation was not superior to a lactate-targeted one on fluid administration or balances. However, it was associated with comparable effects on regional and microcirculatory flow parameters and hypoxia surrogates, and a faster achievement of the predefined resuscitation target. Our data suggest that stopping fluids in patients with CRT ≤ 3 s appears as safe in terms of tissue perfusion. Clinical Trials: ClinicalTrials.gov Identifier: NCT03762005 (Retrospectively registered on December 3rd 2018)
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Affiliation(s)
- Ricardo Castro
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Eduardo Kattan
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Giorgio Ferri
- Unidad de Cuidados Intensivos, Hospital Barros Luco-Trudeau, Santiago, Chile
| | - Ronald Pairumani
- Unidad de Cuidados Intensivos, Hospital Barros Luco-Trudeau, Santiago, Chile
| | - Emilio Daniel Valenzuela
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Leyla Alegría
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Vanessa Oviedo
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Nicolás Pavez
- Departamento de Medicina Interna, Facultad de Medicina, Universidad de Concepción, Concepción, Chile
| | - Dagoberto Soto
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Magdalena Vera
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - César Santis
- Unidad de Cuidados Intensivos, Hospital Barros Luco-Trudeau, Santiago, Chile
| | - Brusela Astudillo
- Unidad de Cuidados Intensivos, Hospital Barros Luco-Trudeau, Santiago, Chile
| | - María Alicia Cid
- Unidad de Cuidados Intensivos, Hospital Barros Luco-Trudeau, Santiago, Chile
| | - Sebastian Bravo
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile
| | - Gustavo Ospina-Tascón
- Department of Intensive Care Medicine, Fundación Valle del Lili, Universidad ICES, Cali, Colombia
| | - Jan Bakker
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile.,Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Medical Center, New York, USA.,Department Intensive Care Adults, Erasmus MC University Medical Center, Rotterdam, CA, The Netherlands.,Division of Pulmonary, and Critical Care Medicine, New York University-Langone, New York, USA
| | - Glenn Hernández
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Santiago, Chile.
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Kattan E, Hernández G, Ospina-Tascón G, Valenzuela ED, Bakker J, Castro R. A lactate-targeted resuscitation strategy may be associated with higher mortality in patients with septic shock and normal capillary refill time: a post hoc analysis of the ANDROMEDA-SHOCK study. Ann Intensive Care 2020; 10:114. [PMID: 32845407 PMCID: PMC7450018 DOI: 10.1186/s13613-020-00732-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 08/17/2020] [Indexed: 12/29/2022] Open
Abstract
Background Capillary refill time (CRT) may improve more rapidly than lactate in response to increments in systemic flow. Therefore, it can be assessed more frequently during septic shock (SS) resuscitation. Hyperlactatemia, in contrast, exhibits a slower recovery in SS survivors, probably explained by the delayed resolution of non-hypoperfusion-related sources. Thus, targeting lactate normalization may be associated with impaired outcomes. The ANDROMEDA-SHOCK trial compared CRT- versus lactate-targeted resuscitation in early SS. CRT-targeted resuscitation associated with lower mortality and organ dysfunction; mechanisms were not investigated. CRT was assessed every 30 min and lactate every 2 h during the 8-h intervention period, allowing a first comparison between groups at 2 h (T2). Our primary aim was to determine if SS patients evolving with normal CRT at T2 after randomization (T0) exhibited a higher mortality and organ dysfunction when allocated to the LT arm than when randomized to the CRT arm. Our secondary aim was to determine if those patients with normal CRT at T2 had received more therapeutic interventions when randomized to the LT arm. To address these issues, we performed a post hoc analysis of the ANDROMEDA-SHOCK dataset. Results Patients randomized to the lactate arm at T0, evolving with normal CRT at T2 exhibited significantly higher mortality than patients with normal CRT at T2 initially allocated to CRT (40 vs 23%, p = 0.009). These results replicated at T8 and T24. LT arm received significantly more resuscitative interventions (fluid boluses: 1000[500–2000] vs. 500[0–1500], p = 0.004; norepinephrine test in previously hypertensive patients: 43 (35) vs. 19 (19), p = 0.001; and inodilators: 16 (13) vs. 3 (3), p = 0.003). A multivariate logistic regression of patients with normal CRT at T2, including APACHE-II, baseline lactate, cumulative fluids administered since emergency admission, source of infection, and randomization group) confirmed that allocation to LT group was a statistically significant determinant of 28-day mortality (OR 3.3; 95%CI[1.5–7.1]); p = 0.003). Conclusions Septic shock patients with normal CRT at baseline received more therapeutic interventions and presented more organ dysfunction when allocated to the lactate group. This could associate with worse outcomes.
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Affiliation(s)
- Eduardo Kattan
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, 362, Chile
| | - Glenn Hernández
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, 362, Chile
| | - Gustavo Ospina-Tascón
- Department of Intensive Care Medicine, Fundación Valle del Lili, Universidad ICESI, Carrera 98 # 18-49, Cali, Colombia
| | - Emilio Daniel Valenzuela
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, 362, Chile
| | - Jan Bakker
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, 362, Chile.,Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Medical Center, 630 W 168th St, New York, USA.,Department Intensive Care Adults, Erasmus MC University Medical Center, Rotterdam, CA, The Netherlands.,Division of Pulmonary, and Critical Care Medicine, New York University-Langone, New York, USA
| | - Ricardo Castro
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, 362, Chile.
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Bakker J, Hernandez G. Can Peripheral Skin Perfusion Be Used to Assess Organ Perfusion and Guide Resuscitation Interventions? Front Med (Lausanne) 2020; 7:291. [PMID: 32656220 PMCID: PMC7324549 DOI: 10.3389/fmed.2020.00291] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 05/22/2020] [Indexed: 11/17/2022] Open
Abstract
Although the definition of septic shock is straightforward, the physiological response to inadequate hemodynamics in patients with septic shock is variable. Therefore, the clinical recognition is limited not only by the patient's response but also by the clinical parameters we can use at the bedside. In this short overview we will argue that the state of the peripheral perfusion can help to identify and to treat patients with septic shock.
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Affiliation(s)
- Jan Bakker
- Department of Pulmonary and Critical Care, Bellevue Hospital, NYU Langone, New York, NY, United States.,Division of Pulmonary and Critical Care Medicine, Columbia University Medical Center, New York, NY, United States.,Department of Intensive Care Adults, Erasmus MC University Medical Center, Rotterdam, Netherlands.,Pontificia Universidad Católica de Chile, Department of Intensive Care, Santiago, Chile
| | - Glenn Hernandez
- Pontificia Universidad Católica de Chile, Department of Intensive Care, Santiago, Chile
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Kattan E, Castro R, Vera M, Hernández G. Optimal target in septic shock resuscitation. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:789. [PMID: 32647714 PMCID: PMC7333135 DOI: 10.21037/atm-20-1120] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Septic shock presents a high risk of morbidity and mortality. Through therapeutic strategies, such as fluid administration and vasoactive agents, clinicians intend to rapidly restore tissue perfusion. Nonetheless, these interventions have narrow therapeutic margins. Adequate perfusion monitoring is paramount to avoid progressive hypoperfusion or detrimental over-resuscitation. During early stages of septic shock, macrohemodynamic derangements, such as hypovolemia and decreased cardiac output (CO) tend to predominate. However, during late septic shock, endothelial and coagulation dysfunction induce severe alterations of the microcirculation, making it more difficult to achieve tissue reperfusion. Multiple perfusion variables have been described in the literature, from bedside clinical examination to complex laboratory tests. Moreover, all of them present inherent flaws and limitations. After the ANDROMEDA-SHOCK trial, there is evidence that capillary refill time (CRT) is an interesting resuscitation target, due to its rapid kinetics and correlation with deep hypoperfusion markers. New concepts such as hemodynamic coherence and flow responsiveness may be used at the bedside to select the best treatment strategies at any time-point. A multimodal perfusion monitoring and an integrated analysis with macrohemodynamic parameters is mandatory to optimize the resuscitation of septic shock patients.
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Affiliation(s)
- Eduardo Kattan
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ricardo Castro
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Magdalena Vera
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Glenn Hernández
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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Morgan TJ, Scott PH, Anstey CM, Bowling FG. Hyperlactatemia in diabetic ketoacidosis is common and can be prolonged: lactate time-series from 25 intensive care admissions. J Clin Monit Comput 2020; 35:757-764. [PMID: 32435932 DOI: 10.1007/s10877-020-00532-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/14/2020] [Indexed: 01/27/2023]
Abstract
Hyperlactatemia is a documented complication of diabetic ketoacidosis (DKA). Lactate responses during DKA treatment have not been studied and were the focus of this investigation. Blood gas and electrolyte data from 25 DKA admissions to ICU were sequenced over 24 h from the first Emergency Department sample. Hyperlactatemia (> 2 mmol/L) was present in 22 of 25 DKA presentations [mean concentration = 3.2 mmol/L]. In 18 time-series (72%), all concentrations normalized in ≤ 2.6 h (aggregate decay t1/2 = 2.29 h). In the remaining 7 (28%), hyperlactatemia persisted > 12 h. These were females (P = 0.04) with relative anemia (hemoglobin concentrations 131 v 155 g/L; P = 0.004) and lower nadir glucose concentrations (5.2 v 8.0 mmol/L, P = 0.003). Their aggregate glucose decay curve commenced higher (42 mmol/L v 29 mmol/L), descending towards a lower asymptote (8 mmol/L v 11 mmol/L). Tonicity decay showed similar disparities. There was equivalent resolution of metabolic acidosis and similar lengths of stay in both groups. Hyperlactatemia is common in DKA. Resolution is often rapid, but high lactates can persist. Females with high glucose concentrations corrected aggressively are more at risk. Limiting initial hyperglycemia correction to ≥ 11 mmol/L may benefit.
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Affiliation(s)
- Thomas J Morgan
- Mater Research, Mater Health Services and University of Queensland, Stanley Street, South Brisbane, Brisbane, QLD, 4101, Australia. .,Intensive Care Unit, Mater Health Services, Stanley Street, South Brisbane, Brisbane, QLD, 4101, Australia.
| | - Peter H Scott
- Intensive Care Unit, Mater Health Services, Stanley Street, South Brisbane, Brisbane, QLD, 4101, Australia
| | - Christopher M Anstey
- University of Queensland, Brisbane, QLD, 4072, Australia.,Griffith University, Gold Coast, Southport, QLD, 4215, Australia
| | - Francis G Bowling
- Department of Pathology, Royal Melbourne Hospital, and University of Melbourne, Parkville, VIC, 3050, Australia
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Hernández G, Castro R, Bakker J. Capillary refill time: the missing link between macrocirculation and microcirculation in septic shock? J Thorac Dis 2020; 12:1127-1129. [PMID: 32274184 PMCID: PMC7139032 DOI: 10.21037/jtd.2019.12.102] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Glenn Hernández
- Departmento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ricardo Castro
- Departmento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jan Bakker
- Departmento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Pulmonology and Critical Care, Columbia University Medical Center, New York, NY, USA.,Department of Pulmonology and Critical Care, NYU Medical Center, Bellevue Hospital, New York, NY, USA.,Erasmus MC University Medical Center, Rotterdam, The Netherlands
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38
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Zampieri FG, Damiani LP, Bakker J, Ospina-Tascón GA, Castro R, Cavalcanti AB, Hernandez G. Effects of a Resuscitation Strategy Targeting Peripheral Perfusion Status versus Serum Lactate Levels among Patients with Septic Shock. A Bayesian Reanalysis of the ANDROMEDA-SHOCK Trial. Am J Respir Crit Care Med 2020; 201:423-429. [DOI: 10.1164/rccm.201905-0968oc] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Affiliation(s)
- Fernando G. Zampieri
- Research Institute, HCor-Hospital do Coração, São Paulo, Brazil
- D’Or Research Institute, São Paulo, Brazil
| | | | - Jan Bakker
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
- Department of Pulmonary and Critical Care Medicine, Columbia University Medical Center, New York, New York
- Department of Pulmonary and Critical Care Medicine, NYU Langone Health, New York, New York
- Department of Intensive Care Adults, Erasmus MC University Medical Center Rotterdam, the Netherlands; and
| | - Gustavo A. Ospina-Tascón
- Department of Intensive Care Medicine, Fundación Valle del Lili, Universidad ICESI, Cali, Colombia
| | - Ricardo Castro
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Glenn Hernandez
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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Gazmuri RJ, de Gomez CA. From a pressure-guided to a perfusion-centered resuscitation strategy in septic shock: Critical literature review and illustrative case. J Crit Care 2020; 56:294-304. [PMID: 31926637 DOI: 10.1016/j.jcrc.2019.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 07/28/2019] [Accepted: 11/13/2019] [Indexed: 01/15/2023]
Abstract
PURPOSE To support a paradigm shift in the management of septic shock from pressure-guided to perfusion-centered, expected to improve outcome while reducing adverse effects from vasopressor therapy and aggressive fluid resuscitation. MATERIAL AND METHODS Critical review of the literature cited in support of vasopressor use to achieve a predefined mean arterial pressure (MAP) of 65 mmHg and review of pertinent clinical trials and studies enabling deeper understanding of the hemodynamic pathophysiology supportive of a perfusion-centered approach, accompanied by an illustrative case. RESULTS Review of the literature cited by the Surviving Sepsis Campaign revealed lack of controlled clinical trials supporting outcome benefits from vasopressors. Additional literature review revealed adverse effects associated with vasopressors and worsened outcome in some studies. Vasopressors increase MAP primarily by peripheral vasoconstriction and in occasions by a modest increase in cardiac output when using norepinephrine. Thus, achieving the recommended MAP of 65 mmHg using vasopressors should not be presumed indicative that organ perfusion has been restored. It may instead create a false sense of hemodynamic stability hampering shock resolution. CONCLUSIONS We propose focusing the hemodynamic management of septic shock on reversing organ hypoperfusion instead of attaining a predefined MAP target as the key strategy for improving outcome.
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Affiliation(s)
- Raúl J Gazmuri
- Medicine, Physiology & Biophysics, Resuscitation Institute at Rosalind Franklin University of Medicine and Science, Critical Care Medicine and ICU, Captain James A. Lovell Federal Health Care Center, USA.
| | - Cristina Añez de Gomez
- Internal Medicine Physician, Northwestern Medical Group, Northwestern Medicine Lake Forrest Hospital, USA
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40
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[Association between peripheral perfusion, microcirculation and mortality in sepsis: a systematic review]. Rev Bras Anestesiol 2019; 69:605-621. [PMID: 31826803 DOI: 10.1016/j.bjan.2019.09.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 07/17/2019] [Accepted: 09/07/2019] [Indexed: 11/24/2022] Open
Abstract
Although increasing evidence supports the monitoring of peripheral perfusion in septic patients, no systematic review has been undertaken to explore the strength of association between poor perfusion assessed in microcirculation of peripheral tissues and mortality. A search of the most important databases was carried out to find articles published until February 2018 that met the criteria of this study using different keywords: sepsis, mortality, prognosis, microcirculation and peripheral perfusion. The inclusion criteria were studies that assessed association between peripheral perfusion/microcirculation and mortality in sepsis. The exclusion criteria adopted were: review articles, animal/pre-clinical studies, meta-analyzes, abstracts, annals of congress, editorials, letters, case-reports, duplicate and articles that did not present abstracts and/or had no text. In the 26 articles were chosen in which 2465 patients with sepsis were evaluated using at least one recognized method for monitoring peripheral perfusion. The review demonstrated a heterogeneous critically ill group with a mortality-rate between 3% and 71% (median=37% [28%-43%]). The most commonly used methods for measurement were Near-Infrared Spectroscopy (NIRS) (7 articles) and Sidestream Dark-Field (SDF) imaging (5 articles). The vascular bed most studied was the sublingual/buccal microcirculation (8 articles), followed by fingertip (4 articles). The majority of the studies (23 articles) demonstrated a clear relationship between poor peripheral perfusion and mortality. In conclusion, the diagnosis of hypoperfusion/microcirculatory abnormalities in peripheral non-vital organs was associated with increased mortality. However, additional studies must be undertaken to verify if this association can be considered a marker of the gravity or a trigger factor for organ failure in sepsis.
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Yoon JC, Kim WY. Basics of changes in hemodynamic monitoring in sepsis care. J Thorac Dis 2019; 11:E168-E170. [PMID: 31737330 DOI: 10.21037/jtd.2019.09.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jae Chol Yoon
- Department of Emergency Medicine, Research Institute of Clinical Medicine of Chonbuk National University and Biomedical Research Institute of Chonbuk National University Hospital, Jeonju-si, Republic of Korea
| | - Won Young Kim
- Department of Emergency Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
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Hernández G, Bakker J. Perspectives on perfusion monitoring in septic shock after the ANDROMEDA-SHOCK trial. Med Intensiva 2019; 43:578-581. [PMID: 31694767 DOI: 10.1016/j.medin.2019.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 09/08/2019] [Indexed: 12/22/2022]
Affiliation(s)
- G Hernández
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - J Bakker
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile; Department of Pulmonology and Critical Care, Columbia University Medical Center, New York, USA; Department of Pulmonology and Critical Care, NYU Medical Center, Bellevue Hospital, New York, USA; Erasmus MC University Medical Center, Rotterdam, The Netherlands
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Santos DMD, Quintans JSS, Quintans-Junior LJ, Santana-Filho VJ, Cunha CLPD, Menezes IAC, Santos MRV. Association between peripheral perfusion, microcirculation and mortality in sepsis: a systematic review. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ENGLISH EDITION) 2019. [PMID: 31826803 PMCID: PMC9391865 DOI: 10.1016/j.bjane.2019.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | - Jullyana S S Quintans
- Universidade Federal de Sergipe, Departamento de Fisiologia, São Cristóvão, SE, Brasil
| | | | | | | | | | - Márcio R Viana Santos
- Universidade Federal de Sergipe, Departamento de Fisiologia, São Cristóvão, SE, Brasil
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Bakker J, Hernandez G. Lactate Measurements: A Guide to Therapy or to Quality? Chest 2019; 154:1461. [PMID: 30526976 DOI: 10.1016/j.chest.2018.07.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 07/25/2018] [Indexed: 10/27/2022] Open
Affiliation(s)
- Jan Bakker
- Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Medical Center, New York, NY; Department of Pulmonary and Critical Care, New York University, New York, NY.
| | - Glenn Hernandez
- Department of Intensive Care, Pontificia Universidad Católica de Chile, Santiago, Chile
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He HW, Long Y, Liu DW, Ince C. Resuscitation incoherence and dynamic circulation-perfusion coupling in circulatory shock. Chin Med J (Engl) 2019; 132:1218-1227. [PMID: 30896570 PMCID: PMC6511427 DOI: 10.1097/cm9.0000000000000221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE Poor tissue perfusion/cellular hypoxia may persist despite restoration of the macrocirculation (Macro). This article reviewed the literatures of coherence between hemodynamics and tissue perfusion in circulatory shock. DATA SOURCES We retrieved information from the PubMed database up to January 2018 using various search terms or/and their combinations, including resuscitation, circulatory shock, septic shock, tissue perfusion, hemodynamic coherence, and microcirculation (Micro). STUDY SELECTION The data from peer-reviewed journals printed in English on the relationships of tissue perfusion, shock, and resuscitation were included. RESULTS A binary (coherence/incoherence, coupled/uncoupled, or associated/disassociated) mode is used to describe resuscitation coherence. The phenomenon of resuscitation incoherence (RI) has gained great attention. However, the RI concept requires a more practical, systematic, and comprehensive framework for use in clinical practice. Moreover, we introduce a conceptual framework of RI to evaluate the interrelationship of the Macro, Micro, and cell. The RI is divided into four types (Type 1: Macro-Micro incoherence + impaired cell; Type 2: Macro-Micro incoherence + normal cell; Type 3: Micro-Cell incoherence + normal Micro; and Type 4: both Macro-Micro and Micro-cell incoherence). Furthermore, we propose the concept of dynamic circulation-perfusion coupling to evaluate the relationship of circulation and tissue perfusion during circulatory shock. CONCLUSIONS The concept of RI and dynamic circulation-perfusion coupling should be considered in the management of circulatory shock. Moreover, these concepts require further studies in clinical practice.
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Affiliation(s)
- Huai-Wu He
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - Yun Long
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - Da-Wei Liu
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - Can Ince
- Department of Intensive Care, Erasmus MC University Hospital Rotterdam, Rotterdam 3015 CE, the Netherlands
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Park MS. Recent lactate findings: is repeated serum lactate testing necessary in septic shock patients? Acute Crit Care 2019; 34:155-157. [PMID: 31723921 PMCID: PMC6786669 DOI: 10.4266/acc.2019.00528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 05/13/2019] [Indexed: 11/30/2022] Open
Affiliation(s)
- Moo Suk Park
- Division of Pulmonology, Department of Internal Medicine, Severance Hospital, Institute of Chest Diseases, Yonsei University College of Medicine, Seoul, Korea
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Increase of Perfusion Index During Vascular Occlusion Test is Paradoxically Associated With Higher Mortality in Septic Shock After Fluid Resuscitation: A Prospective Study. Shock 2019; 51:605-612. [DOI: 10.1097/shk.0000000000001217] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
PURPOSE OF REVIEW Microcirculatory alterations play a major role in the pathogenesis of shock. Monitoring tissue perfusion might be a relevant goal for shock resuscitation. The goal of this review was to revise the evidence supporting the monitoring of peripheral perfusion and microcirculation as goals of resuscitation. For this purpose, we mainly focused on skin perfusion and sublingual microcirculation. RECENT FINDINGS Although there are controversies about the reproducibility of capillary refill time in monitoring peripheral perfusion, it is a sound physiological variable and suitable for the ICU settings. In addition, observational studies showed its strong ability to predict outcome. Moreover, a preliminary study suggested that it might be a valuable goal for resuscitation. These results should be confirmed by the ongoing ANDROMEDA-SHOCK randomized controlled trial. On the other hand, the monitoring of sublingual microcirculation might also provide relevant physiological and prognostic information. On the contrary, methodological drawbacks mainly related to video assessment hamper its clinical implementation at the present time. SUMMARY Measurements of peripheral perfusion might be useful as goal of resuscitation. The results of the ANDROMEDA-SHOCK will clarify the role of skin perfusion as a guide for the treatment of shock. In contrast, the assessment of sublingual microcirculation mainly remains as a research tool.
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