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Ruiz S, Vardon-Bounes F, Virtos M, Seguin T, Crognier L, Rouget A, Georges B, Conil JM, Minville V. Influence of arterial blood gases on the renal arterial resistive index in intensive care unit. J Transl Med 2023; 21:541. [PMID: 37573336 PMCID: PMC10423423 DOI: 10.1186/s12967-023-04407-w] [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: 05/15/2023] [Accepted: 07/31/2023] [Indexed: 08/14/2023] Open
Abstract
BACKGROUND Renal artery Doppler sonography with resistive index (RI) determination is a noninvasive, fast, and reliable diagnostic tool increasingly used in the intensive care unit (ICU) to predict and assess the reversibility of acute kidney injury (AKI). However, interpreting the RI can be challenging due to numerous influencing factors. While some studies have explored various confounding factors, arterial blood gases have received limited attention. Therefore, our study aims to evaluate the impact of arterial blood gases on the RI in the ICU setting. METHODS This prospective observational study enrolled ICU patients who required blood gas analysis and had not experienced significant hemodynamic changes recently. The RI was measured using standardized Doppler ultrasound within an hour of the arterial blood gases sampling and analysis. RESULTS A total of sixty-four patients were included in the analysis. Univariate analysis revealed a correlation between the RI and several variables, including PaCO2 (R = 0.270, p = 0.03), age (R = 0.574, p < 0.0001), diastolic arterial pressure (DAP) (R = - 0.368, p = 0.0028), and SaO2 (R = - 0.284, p = 0.0231). Multivariate analysis confirmed that age > 58 years and PaCO2 were significant factors influencing the RI, with respective odds ratios of 18.67 (p = 0.0003) and 1.132 (p = 0.0267). CONCLUSION The interpretation of renal arterial RI should take into account thresholds for PaCO2, age, and diastolic arterial pressure. Further studies are needed to develop a comprehensive scoring system that incorporates all these cofactors for a reliable analysis of RI levels. Trial registration This observational study, registered under number 70-0914, received approval from local Ethical Committee of Toulouse University Hospital.
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Affiliation(s)
- Stéphanie Ruiz
- Department of Anesthesiology and Intensive Care, Rangueil University Hospital, University Hospital of Toulouse, University Paul Sabatier, Avenue Jean Poulhès, Toulouse, France
| | - Fanny Vardon-Bounes
- Department of Anesthesiology and Intensive Care, Rangueil University Hospital, University Hospital of Toulouse, University Paul Sabatier, Avenue Jean Poulhès, Toulouse, France
| | - Marie Virtos
- Department of Anesthesiology and Intensive Care, Rangueil University Hospital, University Hospital of Toulouse, University Paul Sabatier, Avenue Jean Poulhès, Toulouse, France
| | - Thierry Seguin
- Department of Anesthesiology and Intensive Care, Rangueil University Hospital, University Hospital of Toulouse, University Paul Sabatier, Avenue Jean Poulhès, Toulouse, France
| | - Laure Crognier
- Department of Anesthesiology and Intensive Care, Rangueil University Hospital, University Hospital of Toulouse, University Paul Sabatier, Avenue Jean Poulhès, Toulouse, France
| | - Antoine Rouget
- Department of Anesthesiology and Intensive Care, Rangueil University Hospital, University Hospital of Toulouse, University Paul Sabatier, Avenue Jean Poulhès, Toulouse, France
| | - Bernard Georges
- Department of Anesthesiology and Intensive Care, Rangueil University Hospital, University Hospital of Toulouse, University Paul Sabatier, Avenue Jean Poulhès, Toulouse, France
| | - Jean-Marie Conil
- Department of Anesthesiology and Intensive Care, Rangueil University Hospital, University Hospital of Toulouse, University Paul Sabatier, Avenue Jean Poulhès, Toulouse, France
| | - Vincent Minville
- Department of Anesthesiology and Intensive Care, Rangueil University Hospital, University Hospital of Toulouse, University Paul Sabatier, Avenue Jean Poulhès, Toulouse, France
- RESTORE, UMR 1301, Inserm CNRS-Université Paul Sabatier, Université de Toulouse, 5070 Toulouse, France
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Brusasco C, Tavazzi G, Cucciolini G, Di Nicolò P, Wong A, Di Domenico A, Germinale F, Dotta F, Micali M, Coccolini F, Santori G, Dazzi F, Introini C, Corradi F. Perioperative Renal Ultrasonography of Arterio-to-Venous Coupling Predicts Postoperative Complications after Major Laparoscopic Urologic Surgery. J Clin Med 2023; 12:5013. [PMID: 37568415 PMCID: PMC10419452 DOI: 10.3390/jcm12155013] [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: 06/01/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Point-of-care ultrasonography (POCUS) with concomitant venous and arterial Doppler assessment enables clinicians to assess organ-specific blood supply. To date, no studies have investigated the usefulness of including a comprehensive perioperative POCUS assessment of patients undergoing major laparoscopic surgery. The primary aim of the present study was to evaluate whether the combined venous and arterial renal flow evaluation, measured at different time points of perioperative period, may represent a clinically useful non-invasive method to predict postoperative acute kidney injury (AKI) after major laparoscopic urologic surgery. The secondary outcome was represented by the development of any postoperative complication at day 7. We included 173 patients, subsequently divided for analysis depending on whether they did (n = 55) or did not (n = 118) develop postoperative AKI or any complications within the first 7 days. The main results of the present study were that: (1) the combination of arterial hypoperfusion and moderate-to-severe venous congestion inferred by POCUS were associated with worst outcomes (respectively, HR: 2.993, 95% CI: 1.522-5.884 and HR: 8.124, 95% CI: 3.542-18, p < 0.001); (2) high intra-operative abdominal pressure represents the only independent determinant of postoperative severe venous congestion (OR: 1.354, 95% CI: 1.017-1.804, p = 0.038); (3) the overall number of complications relies on the balance between arterial inflow and venous outflow in order to ensure the adequacy of peripheral perfusion; and (4) the overall reliability of splanchnic perfusion assessment by Doppler is high with a strong inter-rater reliability (ICC: 0.844, 95% CI: 0.792-0.844). The concomitant assessment of arterial and venous Doppler patterns predicts postoperative complications after major laparoscopic urologic surgery and may be considered a useful ultrasonographic biomarker to stratify vulnerable patients at risk for development of postoperative complications.
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Affiliation(s)
- Claudia Brusasco
- Anaesthesia and Intensive Care Unit, E.O. Ospedali Galliera, Mura della Cappuccine 14, 16128 Genoa, Italy;
| | - Guido Tavazzi
- Unit of Anesthesia and Intensive Care, Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy;
| | - Giada Cucciolini
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy; (G.C.); (F.D.)
| | - Pierpaolo Di Nicolò
- Nephrology and Dialysis Unit, S. Maria della Scaletta Hospital, 40026 Imola, Italy;
| | - Adrian Wong
- Department of Critical Care, King’s College Hospital, London SE5 9RS, UK;
| | - Antonia Di Domenico
- Urology Unit, E.O. Ospedali Galliera, 16128 Genoa, Italy; (A.D.D.); (F.G.); (F.D.); (C.I.)
| | - Federico Germinale
- Urology Unit, E.O. Ospedali Galliera, 16128 Genoa, Italy; (A.D.D.); (F.G.); (F.D.); (C.I.)
| | - Federico Dotta
- Urology Unit, E.O. Ospedali Galliera, 16128 Genoa, Italy; (A.D.D.); (F.G.); (F.D.); (C.I.)
| | - Marco Micali
- Anaesthesia and Intensive Care Unit, E.O. Ospedali Galliera, Mura della Cappuccine 14, 16128 Genoa, Italy;
| | - Federico Coccolini
- General, Emergency and Trauma Surgery, Pisa University Hospital, 56100 Pisa, Italy;
| | - Gregorio Santori
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy;
| | - Federico Dazzi
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy; (G.C.); (F.D.)
| | - Carlo Introini
- Urology Unit, E.O. Ospedali Galliera, 16128 Genoa, Italy; (A.D.D.); (F.G.); (F.D.); (C.I.)
| | - Francesco Corradi
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy; (G.C.); (F.D.)
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3
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Corradi F, Santori G, Brusasco C, Robba C, Wong A, Di Nicolò P, Tecchi L, Dazzi F, Taddei E, Isirdi A, Coccolini F, Forfori F, Tavazzi G. Electrocardiographic Time-Intervals Waveforms as Potential Predictors for Severe Acute Kidney Injury in Critically Ill Patients. J Clin Med 2023; 12:jcm12020700. [PMID: 36675629 PMCID: PMC9866689 DOI: 10.3390/jcm12020700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 01/17/2023] Open
Abstract
Background: Acute kidney injury (AKI) is common in critically ill patients admitted to intensive care units (ICU) and is frequently associated with poorer outcomes. Hence, if an indicator is available for predicting severe AKI within the first few hours of admission, management strategies can be put into place to improve outcomes. Materials and methods: This was a prospective, observational study, involving 63 critically ill patients, that aimed to explore the diagnostic accuracy of different Doppler parameters in predicting AKI in critically ill patients from a mixed ICU. Participants were enrolled at ICU admission. All underwent ultrasonographic examinations and hemodynamic assessment. Renal Doppler resistive index (RDRI), venous impedance index (VII), arterial systolic time intervals (a-STI), and venous systolic time intervals (v-STI) were measured within 2 h from ICU admission. Results: Cox proportional hazards models, including a-STI, v-STI, VII, and RDRI as independent variables, returned a-STI as the only putative predictor for the development of AKI or severe AKI. An overall statistically significant difference (p < 0.001) was observed in the Kaplan−Meier plots for cumulative AKI events between patients with a-STI higher or equal than 0.37 and for cumulative severe AKI-3 between patients with a-STI higher or equal than 0.63. As assessed by the area under the receiver operating curves (ROC) curves, a-STI performed best in diagnosing any AKI and/or severe AKI-3. Positive correlations were found between a-STI and the N-terminal brain natriuretic peptide precursor (NT-pro BNP) (ρ = 0.442, p < 0.001), the sequential organ failure assessment (SOFA) score (ρ: 0.361, p = 0.004), and baseline serum creatinine (ρ: 0.529, p < 0.001). Conclusions: Critically ill patients who developed AKI had statistically significant different a-STI (on admission to ICU), v-STI, and VII than those who did not. Moreover, a-STI was associated with the development of AKI at day 5 and provided the best diagnostic accuracy for the diagnosis of any AKI or severe AKI compared with RDRI, VII, and v-STI.
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Affiliation(s)
- Francesco Corradi
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy
- Azienda Ospedaliero Universitaria Pisana, Via Paradisa, 2, 56124 Pisa, Italy
- Correspondence: ; Tel.: +39-348-2311657
| | - Gregorio Santori
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16126 Genoa, Italy
| | - Claudia Brusasco
- Anesthesia and Intensive Care Unit, E.O. Ospedali Galliera, 16128 Genoa, Italy
| | - Chiara Robba
- Anesthesia and Intensive Care, Policlinico San Martino, IRCCS for Oncology and Neuroscience, 16126 Genoa, Italy
| | - Adrian Wong
- Department of Critical Care, King’s College Hospital, London SE5 9RS, UK
| | - Pierpaolo Di Nicolò
- Nephrology and Dialysis Unit, “S. Maria della Scaletta” Hospital, 40026 Imola, Italy
| | - Ludovica Tecchi
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy
| | - Federico Dazzi
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy
| | - Erika Taddei
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy
| | - Alessandro Isirdi
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy
| | - Federico Coccolini
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy
| | - Francesco Forfori
- Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, 56126 Pisa, Italy
| | - Guido Tavazzi
- Department of Clinical Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
- Anaesthesia, Intensive Care and Pain Therapy, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
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Lavrentieva A, Depetris N, Moiemen N, Joannidis M, Palmieri TL. Renal replacement therapy for acute kidney injury in burn patients, an international survey and a qualitative review of current controversies. Burns 2022; 48:1079-1091. [PMID: 34887124 DOI: 10.1016/j.burns.2021.08.013] [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: 04/01/2021] [Revised: 07/27/2021] [Accepted: 08/16/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND OF THE STUDY Acute kidney injury (AKI) is a common complication in critically ill burn patients and is associated with a number of serious adverse outcomes. The clinical decision-making process related to the management of AKI in burn patients is complex and has not been sufficiently standardized. The main aim of this study was to explore the diagnostic approach and clinician's attitudes toward the management of AKI and RRT in burn patients around the world. METHODS The questionnaire was widely distributed among the members of International Society for Burn Injury (ISBI), who were invited to complete the survey. Data collection and report was compliant with the the Checklist for Reporting Results of Internet E-Surveys (CHERRIES) Web-survey guidelines. The survey form with multiple-choice questions was divided into 3 parts: a. physician and institutional demographics, b. AKI diagnostic information, c. technical aspects of RRT. RESULTS A total of 44 respondents worldwide submitted valuable data in the 2-month period. Of all respondents, 43.2% were from Europe, 30% from North America, 7% from South-East Asia 2.3% from Africa and 18.2% from other regions. 93.1% of participants declare that they use specific definitions to detect AKI, while 11.4% declare the use of renal ultrasonography for AKI diagnosis. CRRT appeared to be the most preferred option by 43.2% of participants, followed by intermittent hemodialysis (25%), and prolonged intermittent RRT (6.8%). The expertise to deliver a modality and the availability of resources were considered important factors when selecting the optimal RRT modality by 20.5% and 29.6% of respondents. The use of specific serum biomarkers for AKI diagnosis are stated by 16% of respondents; 25% of specialists refer to the use of biomarkers of AKI as a criterium for discontinuing the RRT. Femoral vena and right jugular vena were the most frequently used location for RRT temporary catheter placement, 54.6% of respondents declared using ultrasound guidance for catheter placement. CONCLUSIONS The majority of burn specialists use specific consensus classifications to detect acute kidney injury. Continuous renal replacement therapy appeared to be the most preferred option, while the expertise to deliver a particular modality and resources availability play a significant role in modality selection. The use of ultrasound and specific biomarkers for AKI evaluation is infrequent in routine clinical practice.
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Affiliation(s)
- Athina Lavrentieva
- Burn ICU, A-ICU Department, Papanikolaou Hospital, Thessaloniki, Greece.
| | - Nadia Depetris
- Anesthesia and Intensive Care 3, Department of Anesthesia and Intensive Care, City of Health and Science, CTO Hospital, Turin, Italy.
| | - Naiem Moiemen
- University Hospitals Birmingham Foundation Trust, (Heritage Building) Queen Elizabeth Hospital, Mindelsohn Way, Edgbaston, Birmingham B15 2TH, UK.
| | - Michael Joannidis
- Division of Intensive Care and Emergency Medicine, Department of Internal Medicine, Medical University Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.
| | - Tina Louise Palmieri
- Burn Division, Department of Surgery, University of California Davis, Shriners Hospital for Children Northern California, Sacramento, CA, USA.
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Fotopoulou G, Poularas I, Kokkoris S, Charitidou E, Boletis I, Brountzos E, Benetos A, Zakynthinos S, Routsi C. Renal Resistive Index on Intensive Care Unit Admission Correlates With Tissue Hypoperfusion Indices and Predicts Clinical Outcome. Shock 2022; 57:501-507. [PMID: 34864780 DOI: 10.1097/shk.0000000000001896] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Renal resistive index (RRI) has been used to evaluate renal blood flow. Our aim was to investigate the relation between RRI and global tissue hypoperfusion indices and their association with clinical outcome, in intensive care unit (ICU) patients. METHODS RRI was measured within 24 h of ICU admission. Gas exchange and routine hemodynamic variables at the time of RRI assessment were recorded. An elevated RRI was defined as >0.7. The ratio of central venous-to-arterial carbon dioxide partial pressure difference by arterial-to-central venous oxygen content difference (P(cv-a)CO2/C(a-cv)O2) and lactate were used as global tissue hypoperfusion indices. RESULTS A total of 126 patients were included [median age 61 (IQR 28) years, 74% males]. P(cv-a)CO2/C(a-cv)O2 ratio and arterial lactate were significantly higher in patients with RRI >0.7 compared with those with RRI ≤0.7 [2.88 (3.39) vs. 0.62 (0.57) mmol/L and 2.4 (2.2) vs. 1.2 (0.6)] respectively, both P < 0.001)]. RRI was significantly correlated with P(cv-a)CO2/C(a-cv)O2 ratio and arterial lactate for the whole patient population (rho = 0.64, both P < 0.0001) and for the subset of patients with shock (rho = 0.47, P = 0.001; and r = 0.64, P < 0.0001 respectively). Logistic regression models showed a significant association between RRI and P(cv-a)CO2/C(a-cv)O2 ratio with clinical outcome. The combination of RRI with P(cv-a)CO2)/(C(a-cv)O2 ratio and lactate better predicted mortality than RRI alone [AUC 84.8% (95% CI 5.1% -94.4%)] vs. [AUC 74.9% (95% CI 61%-88.8%)] respectively, P < 0.001. CONCLUSIONS Renal blood flow assessed by RRI, on ICU admission, correlates with global tissue hypoperfusion indices. In addition, RRI in combination with tissue perfusion estimation better predicts clinical outcome than RRI alone.
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Affiliation(s)
- Georgia Fotopoulou
- 1st Department of Critical Care, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
| | - Ioannis Poularas
- 1st Department of Critical Care, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
| | - Stelios Kokkoris
- 1st Department of Critical Care, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
| | - Efstratia Charitidou
- 1st Department of Critical Care, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
| | - Ioannis Boletis
- Nephrology Department and Renal Transplantation Unit, National and Kapodistrian University of Athens, School of Medicine, "Laiko" Hospital, Athens, Greece
| | - Elias Brountzos
- 2nd Department of Radiology, School of Medicine, National and Kapodistrian University of Athens, "Attikon" Hospital, Athens, Greece
| | - Athanasios Benetos
- Department of Geriatrics, CHRU Nancy and INSERM DCAC, Université de Lorraine, Nancy, France
| | - Spyros Zakynthinos
- 1st Department of Critical Care, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
| | - Christina Routsi
- 1st Department of Critical Care, School of Medicine, National and Kapodistrian University of Athens, "Evangelismos" Hospital, Athens, Greece
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Cruz EG, Broca Garcia BE, Sandoval DM, Gopar-Nieto R, Gonzalez Ruiz FJ, Gallardo LD, Ronco C, Madero M, Vasquez Jimenez E. Renal Resistive Index as a Predictor of Acute Kidney Injury and Mortality in COVID-19 Critically Ill Patients. Blood Purif 2021; 51:309-316. [PMID: 34280921 PMCID: PMC8339011 DOI: 10.1159/000517469] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 05/28/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Acute kidney injury (AKI) in patients with COVID-19 can be caused by multiple mechanisms. Renal resistive index (RRI) is a noninvasive instrument to evaluate kidney hemodynamics, and it is obtained by analysis of intrarenal arterial waves using Doppler ultrasound. This study aimed to determine the role of RRI in predicting AKI and adverse outcomes in critically ill patients with COVID-19. METHODS This cross-sectional study included 65 patients with confirmed SARS-CoV-2 pneumonia admitted to the critical care unit from April 1, 2020, to June 20, 2020. Informed consent was obtained from all individual participants included in the study. Cardiac, pulmonary, and kidney ultrasonographic evaluations were performed in a protocolized way. RESULTS In this cohort, 65 patients were included, mean age was 53.4 years, 79% were male, and 35% were diabetic. Thirty-four percent of patients developed AKI, 12% required RRT, and 35% died. Of the patients who developed AKI, 68% had RRI ≥ 0.7. Also, 75% of the patients who required RRT had RRI ≥ 0.7. In the adjusted Cox model, the RRI ≥ 0.7 was associated with higher mortality (HR 2.86, 95% CI: 1.19-6.82, p = 0.01). CONCLUSIONS Critical care ultrasonography is a noninvasive, reproducible, and accurate bedside method that has proven its usefulness. An elevated RRI may have a role in predicting AKI, RRT initiation, and mortality in patients with severe SARS-CoV-2 pneumonia.
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Affiliation(s)
- Edgar Garcia Cruz
- Department of Cardiovascular Critical Care, Nacional Institute of Cardiology “Ignacio Chavez”, Mexico City, Mexico
| | | | - Daniel Manzur Sandoval
- Department of Cardiovascular Critical Care, Nacional Institute of Cardiology “Ignacio Chavez”, Mexico City, Mexico
| | - Rodrigo Gopar-Nieto
- Department of Cardiology, Nacional Institute of Cardiology “Ignacio Chavez”, Mexico City, Mexico
| | | | | | - Claudio Ronco
- Department of Nephrology, San Bortolo Hospital and International Renal Research Institute of Vicenza (IRRIV), Vicenza, Italy
| | - Magdalena Madero
- Department of Nephrology, Nacional Institute of Cardiology “Ignacio Chavez”, Mexico City, Mexico
| | - Enzo Vasquez Jimenez
- Department of Nephrology, Nacional Institute of Cardiology “Ignacio Chavez”, Mexico City, Mexico
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Anile A, Castiglione G, Zangara C, Calabrò C, Vaccaro M, Sorbello M. COVID-19: The New Ultrasound Alphabet in SARS-CoV-2 Era. Anesth Analg 2020; 131:e232-e234. [PMID: 33094983 PMCID: PMC7389191 DOI: 10.1213/ane.0000000000005142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Antonio Anile
- Anesthesia and Intensive Care, Policlinico San Marco University Hospital, Catania, Italy
| | - Giacomo Castiglione
- Anesthesia and Intensive Care, Policlinico San Marco University Hospital, Catania, Italy
| | - Chiara Zangara
- Postgraduate School Anesthesia and Intensive Care, University of Catania, Catania, Italy
| | - Chiara Calabrò
- Postgraduate School Anesthesia and Intensive Care, University of Catania, Catania, Italy
| | - Mauro Vaccaro
- Postgraduate School Emergency Medicine, University of Catania, Catania, Italy
| | - Massimiliano Sorbello
- Anesthesia and Intensive Care, Policlinico San Marco University Hospital, Catania, Italy,
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Khan S, Khurana M, Vyas P, Vohora D. The role of melatonin and its analogues in epilepsy. Rev Neurosci 2020; 32:/j/revneuro.ahead-of-print/revneuro-2019-0088/revneuro-2019-0088.xml. [PMID: 32950966 DOI: 10.1515/revneuro-2019-0088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 04/01/2020] [Indexed: 12/31/2022]
Abstract
Extensive research has gone into proposing a promising link between melatonin administration and attenuation of epileptic activity, the majority of which suggest its propensity as an antiseizure with antioxidant and neuroprotective properties. In the past few years, a number of studies highlighting the association of the melatonergic ligands with epilepsy have also emerged. In this context, our review is based on discussing the recent studies and various mechanisms of action that the said category of drugs exhibit in the context of being therapeutically viable antiseizure drugs. Our search revealed several articles on the four major drugs i.e. melatonin, agomelatine, ramelteon and piromelatine along with other melatonergic agonists like tasimelteon and TIK-301. Our review is suggestive of antiseizure effects of both melatonin and its analogues; however, extensive research work is still required to study their implications in the treatment of persons with epilepsy. Further evaluation of melatonergic signaling pathways and mechanisms may prove to be helpful in the near future and might prove to be a significant advance in the field of epileptology.
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Affiliation(s)
- Sumaira Khan
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Mallika Khurana
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Preeti Vyas
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Divya Vohora
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
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Abstract
Introduction: Shock is characterized by micro- and macrovascular flow impairment contributing to acute kidney injury (AKI). Routine monitoring of the circulation regards the macrocirculation but not the renal circulation which can be assessed with Doppler ultrasound as renal resistive index (RRI). RRI reflects resistance to flow. High RRI predicts persistent AKI. Study aims were to determine whether RRI is elevated in shock and to identify determinants of RRI. Materials and Methods: This prospective observational cohort study included two cohorts of patients, with and without shock less than 24-h after intensive care admission. Apart from routine monitoring, three study measurements were performed simultaneously: RRI, sublingual microcirculation, and bioelectral impedance analysis. Results: A total of 92 patients were included (40 shock, 52 nonshock), median age was 69 [60–76] vs. 67 [59–76], P = 0.541; APACHE III was 87 [65–119] vs. 57 [45–69], P < 0.001. Shock patients had higher RRI than patients without shock (0.751 [0.692–0.788] vs. 0.654 [0.610–0.686], P < 0.001). Overall, high age, APACHE III score, lactate, vasopressor support, pulse pressure index (PPI), central venous pressure (CVP), fluid balance, and low preadmission estimated glomerular filtration rate, mean arterial pressure (MAP), creatinine clearance, and reactance/m were associated with high RRI at univariable regression (P < 0.01). Microcirculatory markers were not. At multivariable regression, vasopressor support, CVP, PPI and MAP, reactance/m, and preadmission eGFR were independent determinants of RRI (n = 92, adj. R2 = 0.587). Conclusions: Patients with shock have a higher RRI than patients without shock. Independent determinants of high RRI were pressure indices of the systemic circulation, low membrane capacitance, and preadmission renal dysfunction. Markers of the sublingual microcirculation were not.
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Williams FB, McBride CA, Badger GJ, Bernstein IM. Measures of adiposity correlate with renal filtration in young nulliparous women: An observational cohort study. Obes Sci Pract 2020; 6:70-75. [PMID: 32128244 PMCID: PMC7042107 DOI: 10.1002/osp4.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 09/09/2019] [Accepted: 09/28/2019] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE Renal hyperfiltration, which has been documented in severe obesity and obesity-associated hypertension, can occur with hypertensive disorders of pregnancy. Identification of prepregnancy risk factors for unrecognized renal hyperfiltration could inform screening and intervention strategies to protect against pregnancy complications. In young, healthy, nulliparous women, associations between associations between measures of adiposity, insulin resistance, and renal vascular resistance were thus evaluated. METHODS This is a secondary analysis of a prospective observational trial characterizing associations of prepregnancy and late-pregnancy maternal physiology. Seventy-nine nulligravid women aged 18-42 years without major medical conditions were assessed for percent android body fat using dual-energy X-ray absorption. Renal cortical vessel blood flow resistance index (CVRI) was determined using Doppler ultrasonography. Creatinine clearance was calculated from 24-hour urine collection. RESULTS Renal CVRI inversely correlates with body mass index (r = -0.23, p = 0.047), percent android fat (r = -0.30, p = 0.008), and supine pulse (r = -0.44, p < 0.001). Creatinine clearance is positively associated with BMI and HOMA-IR.In regression modeling, supine pulse (r2 = 0.22, p < 0.001) and cardiac index (r2 = 0.05, p = 0.045) predict renal CVRI, whereas HOMA-IR (r2 = 0.11, p = 0.008) and cardiac output (r2 = 0.06, p = 0.039) predict creatinine clearance. Measures of adiposity are not independently predictive of either measure. CONCLUSIONS In healthy young women, measures of adiposity and insulin resistance correlate positively with renal filtration. Preclinical manifestations of renal hyperfiltration may have implications for pregnancy outcomes.
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Affiliation(s)
- Frank B. Williams
- Department of Obstetrics, Gynecology and Reproductive Services, Larner College of MedicineUniversity of VermontBurlingtonVermont
| | - Carole A. McBride
- Department of Obstetrics, Gynecology and Reproductive Services, Larner College of MedicineUniversity of VermontBurlingtonVermont
| | - Gary J. Badger
- Department of Obstetrics, Gynecology and Reproductive Services, Larner College of MedicineUniversity of VermontBurlingtonVermont
| | - Ira M. Bernstein
- Department of Obstetrics, Gynecology and Reproductive Services, Larner College of MedicineUniversity of VermontBurlingtonVermont
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What's new in ultrasound-based assessment of organ perfusion in the critically ill: expanding the bedside clinical monitoring window for hypoperfusion in shock. Intensive Care Med 2019; 46:775-779. [PMID: 31654077 DOI: 10.1007/s00134-019-05791-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 09/17/2019] [Indexed: 12/15/2022]
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Anile A, Ferrario S, Campanello L, Orban MA, Castiglione G. Renal resistive index: a new reversible tool for the early diagnosis and evaluation of organ perfusion in critically ill patients: a case report. Ultrasound J 2019; 11:23. [PMID: 31598787 PMCID: PMC6785600 DOI: 10.1186/s13089-019-0138-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 09/06/2019] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND We reported a case of early detection of peripheral hypoperfusion trough the evaluation of a new index in intensive care: Renal Doppler Resistive Index (RRI). CASE PRESENTATION We admitted a 76-year-old man who underwent ileostomy and hernioplasty because of an intestinal occlusion due to obstructive strangulated right inguinal hernia. The post-operative period was characterised by hemodynamic instability and he needed an invasive hemodynamic monitoring, administration of vasopressors and continuous renal replacement therapy (CRRT). Then, hemodynamic stability was obtained and vasopressors interrupted. RRI was lower than 0.7. In the eleventh post-operative day, despite stable macrocirculatory parameters, we found increased values of RRI. An abdomen ultrasound first and then a CT scan revealed the presence of bleeding from the previous ileostomy. Hence, the patient immediately underwent another surgical operation. CONCLUSIONS RRI modification appears to be more precocious than any other hemodynamic, microcirculatory and metabolic parameter routinely used. RRI has been widely used to assess renal function in critically ill patients; now, we presume that RRI could represent a common and useful tool to manage target therapy in critical condition.
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Affiliation(s)
- Antonio Anile
- Intensive Care Unit, Ospedale Vittorio Emanuele, AOU Policlinico–Vittorio Emanuele, Catania, Italy
| | - Silvia Ferrario
- Section of Nephrology, Department of Clinical and Experimental Medicine, Policlinico Universitario, University of Catania, Catania, Italy
| | - Lorena Campanello
- School of Anaesthesia and Intensive Care, University Hospital “G. Rodolico”, University of Catania, Catania, Italy
| | - Maria Antonietta Orban
- School of Anaesthesia and Intensive Care, University Hospital “G. Rodolico”, University of Catania, Catania, Italy
| | - Giacomo Castiglione
- Intensive Care Unit, Ospedale Vittorio Emanuele, AOU Policlinico–Vittorio Emanuele, Catania, Italy
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13
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Della Torre V, Corradi F, Badenes R, Robba C. Authors' reply-multi-organ ultrasonography: a stethoscope for the body. J Thorac Dis 2018; 10:S2225-S2227. [PMID: 30123570 DOI: 10.21037/jtd.2018.06.59] [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)
- Valentina Della Torre
- Department of Anaesthesia and Intensive Care, Milton Keynes University Hospital NHS Trust, Milton Keynes, UK
| | - Francesco Corradi
- Departments of Anaesthesia and Intensive Care, Galliera Hospital, Genova, Italy
| | - Rafael Badenes
- Departments of Anaesthesiology and Surgical-Trauma Intensive Care, Hospital Clinic Universitari de Valencia, University of Valencia, Valencia, Spain
| | - Chiara Robba
- Departments of Anaesthesia and Intensive Care, Galliera Hospital, Genova, Italy.,Department of Neuro Critical Care, NCCU, Cambridge University Hospital NHS Foundation Trust, Cambridge, UK
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Richards C, Ishihara K, Grayson C, Lustik M, Yheulon C. Serum lactate predicts resource utilization, but not surgical need, in the emergency department. J Surg Res 2018; 226:89-93. [PMID: 29661294 DOI: 10.1016/j.jss.2018.01.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/29/2017] [Accepted: 01/12/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Serum lactate is frequently tested in the emergency department (ED) setting to diagnose visceral ischemia and as a marker of end-organ perfusion. It is highly nonspecific, and levels can be affected by both kidney and liver function. In this retrospective chart review, we aim to demonstrate that serum lactate is overused in the ED setting and predicts resource utilization but not the need for surgical intervention. METHODS ED records with a chief complaint of "abdominal pain" were queried for the preceding 12 mo. We excluded pregnant patients, patients aged less than 18 years, and patients for whom a blood count and chemistry were not obtained. Vital signs, laboratory values, resource utilization, and outcome of the visit were obtained. Logistic regression models were developed to correct for confounding associations. RESULTS A total of 1003 records were obtained initially with 753 patients (75%) included in the study. Serum lactate was drawn in 118 patients (15%) and was elevated in 19 patients (16% of those drawn). Utilization of computed tomography imaging was associated with lactate utilization (P < 0.001). Patients in whom lactate was drawn were more likely to have a general surgery consult (51% versus 34%, P < 0.001) and to be admitted to the hospital (P < 0.001). CONCLUSIONS The use of serum lactate in the workup of patients with abdominal pain should be targeted at patients who have signs of sepsis and based on the index of suspicion for specific disease processes such as mesenteric ischemia.
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Affiliation(s)
- Carly Richards
- Department of Surgery, Tripler Army Medical Center, Honolulu, Hawaii.
| | - Kelli Ishihara
- Department of Surgery, Tripler Army Medical Center, Honolulu, Hawaii
| | - Cary Grayson
- Department of Surgery, Tripler Army Medical Center, Honolulu, Hawaii
| | - Michael Lustik
- Department of Clinical Investigation, Tripler Army Medical Center, Honolulu, Hawaii
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