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Burkhardt SJ, Drobatz KL, Callan B, Culp WTN, Selmic LE, Tobias K, Wallace ML, Worley D, Holt DE. Evaluating preoperative coagulation panels in dogs undergoing liver lobectomy for primary liver tumors: A multi-institutional retrospective study. Vet Surg 2024. [PMID: 39149870 DOI: 10.1111/vsu.14155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/17/2024] [Accepted: 07/31/2024] [Indexed: 08/17/2024]
Abstract
BACKGROUND The objectives of this study were to: (i) Determine whether operable primary liver tumors were associated with prolongations in prothrombin time (PT) and activated partial thromboplastin time (aPTT) and (ii) determine if these secondary hemostatic abnormalities were more prevalent with specific liver tumors. STUDY DESIGN Multi-institutional retrospective study. ANIMAL POPULATION Dogs (n = 359) undergoing liver lobectomy for a primary liver tumor with a preoperative coagulation panel. METHODS Data was identified via electronic medical record review at eight veterinary teaching hospitals. Baseline dog characteristics, coagulation panel values, platelet count, emergency versus non-emergency procedure, whether the dogs received transfusion(s) of a blood product, liver lobe removed, and histopathological diagnosis were extracted from the medical record. Chi-square analysis was used to compare categorical variables between groups. Continuous variables were assessed for normality using the Shapiro-Wilk test. RESULTS A total of 74 of 359 dogs (20.6%) had a prolongation in either PT or aPTT preoperatively. A total of 20 of 359 dogs (5.6%) were found to have prolongation of both PT and aPTT. Hemangiosarcoma was the only histopathological diagnosis associated with concurrent prolongations of both PT and aPTT (p < .001) in 6/16 (37.5%) dogs. CONCLUSION Coagulation panels including PT and aPTT are unlikely to detect substantial deficiencies in secondary hemostasis in most dogs with primary liver tumors except in dogs with a histopathological diagnosis of hemangiosarcoma. CLINICAL SIGNIFICANCE PT and aPTT testing is low yield as an elective preoperative screening test in dogs with primary liver tumors except in dogs where there is a hemoabdomen or high suspicion for hepatic hemangiosarcoma.
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Affiliation(s)
- Samuel J Burkhardt
- Department of Clinical Studies, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kenneth L Drobatz
- Department of Clinical Studies, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Beth Callan
- Department of Clinical Studies, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - William T N Culp
- Department of Veterinary Surgical and Radiological Sciences, University of California, Davis, Davis, California, USA
| | - Laura E Selmic
- Department of Veterinary Clinical Sciences, Ohio State University, Columbus, Ohio, USA
| | - Karen Tobias
- Department of Clinical Sciences, University of Tennessee, Knoxville, Tennessee, USA
| | - Mandy L Wallace
- Department of Small Animal Medicine and Surgery, University of Georgia, Athens, Georgia, USA
| | - Deanna Worley
- Department of Clinical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - David E Holt
- Department of Clinical Studies, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Zeng X, Yin Y, Li T, Zhuang S. The Value of Serum Procalcitonin, Thromboelastography Combined with Platelet Count in Predicting the Short-Term Progression of Septic Shock in the Intensive Care Unit. Int J Gen Med 2024; 17:3361-3370. [PMID: 39100724 PMCID: PMC11298208 DOI: 10.2147/ijgm.s464566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 07/16/2024] [Indexed: 08/06/2024] Open
Abstract
Objective By evaluating the level of serum procalcitonin (PCT), thromboelastography (TEG) and platelet count (PLT) of patients with septic shock in intensive care unit (ICU), the predictive value of the combination of the three indicators on the short-term progression was discussed, which provided a new basis for early clinical diagnosis and disease evaluation. Methods The clinical data of 130 patients with septic shock admitted to the IUC of our hospital from December 2021 to December 2023 were analyzed retrospectively. These subjects were divided into good prognosis group (n=78) and poor prognosis group (n=52) according to the 28 d deaths. The influencing factors were explored using the Multivariate logistic regression analysis. The value of single or combined PCT, PLT and TEG in predicting poor short-term prognosis was assessed using the receiver operating characteristic (ROC) curve. Results The patients in poor prognosis group had higher Acute Physiology and Chronic Health Evaluation II (APACHE II) scores, serum PCT level, coagulation reaction time (R value) and coagulation formation time (K value), but lower PLT levels, final strength of coagulation (MA value) and coagulation formation rate (α angle) than those in good prognosis group (P<0.001). PCT, R value and K value were risk factors (P<0.001), while PLT, MA value and α angle were protective factors (P<0.001). The area under the curve (AUC) of PCT, PLT and TEG predicting poor short-term progression was 0.813, 0.658 and 0.752, respectively. The AUC of combined three indicators was 0.905, which had the highest predictive value. Conclusion Serum levels of PCT, PLT and TEG had certain value in predicting poor short-term progression of septic shock patients, and their combined diagnostic value was higher. Therefore, regular monitoring of these three indicators could provide certain guiding significance for the prevention and treatment of poor short-term prognosis in patients with septic shock.
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Affiliation(s)
- Xianhui Zeng
- Department of Critical Care Medicine, Yiyang Central Hospital of Hunan Province, Yiyang City, Hunan Province, 413099, People’s Republic of China
| | - Yuxi Yin
- Department of Otolaryngology Head and Neck Surgery, Yiyang Central Hospital of Hunan Province, Yiyang City, 413099, People’s Republic of China
| | - Tengfei Li
- Department of Emergency, Yiyang Central Hospital of Hunan Province, Yiyang City, 413099, People’s Republic of China
| | - Shuilong Zhuang
- Department of Critical Care Medicine, Yiyang Central Hospital of Hunan Province, Yiyang City, Hunan Province, 413099, People’s Republic of China
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Rosati T, Jandrey KE, Stern JA, Nguyen N, Li RHL. Evaluation of clopidogrel response in healthy cats using a novel viscoelastic test and thromboelastography. Front Vet Sci 2024; 11:1371781. [PMID: 38957799 PMCID: PMC11217344 DOI: 10.3389/fvets.2024.1371781] [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: 01/17/2024] [Accepted: 05/17/2024] [Indexed: 07/04/2024] Open
Abstract
Introduction Cats with cardiomyopathy face an increased risk of arterial thromboembolism (ATE). Although clopidogrel is frequently utilized to mitigate this risk, feline responses to this therapy exhibit variability. This study evaluated 2 viscoelastic devices, thromboelastography (TEG) and Viscoelastic Coagulation Monitor (VCM), for monitoring clopidogrel in cats in comparison to light transmission aggregometry (LTA). Methods Twenty-eight healthy cats received clopidogrel for 7 days. Blood was collected at baseline and after treatment for analysis by TEG, VCM, and LTA. Results On LTA, maximum amplitude, slope, and area under the curve (AUC) significantly decreased after treatment (p < 0.0001). On VCM, maximum clot firmness (MCF) significantly increased after treatment (p = 0.002). On TEG, R-time significantly prolonged (p = 0.024), while K and alpha angle significantly changed (p = 0.0002 and p = 0.0014, respectively). There was a moderate negative correlation between TEG R-time and LTA AUC (r = -0.39, p = 0.042). Eight cats were identified as non-responders to clopidogrel. Of the 8 non-responders, 6 (75%) had shortened R time after treatment. VCM appeared to be less discriminatory in identifying non-responders. Discussion LTA remained the gold standard of monitoring clopidogrel treatment in cats. Unexpected changes on VCM and TEG were likely related to high interindividual and assay variability and increased sensitivity of feline platelets. R-time on TEG may have potential utility for point-of-care monitoring of clopidogrel response in cats.
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Affiliation(s)
- Tommaso Rosati
- WR Pritchard Veterinary Medical Teaching Hospital, University of California Davis, Davis, CA, United States
- Department for Small Animals, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Karl E. Jandrey
- Department of Surgical and Radiological Sciences, University of California Davis, Davis, CA, United States
| | - Joshua A. Stern
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
- Department of Medicine and Epidemiology, University of California Davis, Davis, CA, United States
| | - Nghi Nguyen
- Department of Surgical and Radiological Sciences, University of California Davis, Davis, CA, United States
| | - Ronald H. L. Li
- Department of Surgical and Radiological Sciences, University of California Davis, Davis, CA, United States
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
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Hui S, Zhang Q, Lang J, Yi J. Temperature effect on coagulation function in mild hypothermic patients undergoing thoracic surgeries: thromboelastography (TEG) versus standard tests. Perioper Med (Lond) 2024; 13:55. [PMID: 38867331 PMCID: PMC11167826 DOI: 10.1186/s13741-024-00405-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/22/2024] [Indexed: 06/14/2024] Open
Abstract
PURPOSE Our previous research has revealed that mild hypothermia leads to excessive bleeding in thoracic surgeries, while the underlying mechanism stayed unrevealed by the standard coagulation tests. The research question in this study was as follows: "How does mild hypothermia impair the hemostatic function in patients receiving thoracic surgeries?". The purpose was to detect the disturbed coagulation processes by comparing the TEG parameters in patients receiving active vs. passive warming during thoracic surgeries. METHODS Standard coagulation tests and thromboelastography (TEG) were adopted to compare the hemostatic functions in patients receiving active vs. passive warming during thoracic surgeries. Furthermore, blood samples from passive warming group were retested for TEG at actual core body temperatures. RESULTS Sixty-four eligible patients were included in this study. TEG revealed that mild hypothermia significantly disturbed coagulation by decreasing MA (59.4 ± 4.5 mm vs. 64.2 ± 5.7 mm, p = 0.04) and α angle (70.4 ± 5.2° vs. 74.9 ± 4.4°, p = 0.05) and prolonging ACT (122.2 ± 19.3 s vs. 117.3 ± 15.2 s, p = 0.01) and K time (1.9 ± 1.0 s vs. 1.3 ± 0.4 min, p = 0.02). TEGs conducted under core body temperatures revealed more impaired coagulation than those incubated at 37 °C. Furthermore, postoperative shivering and waking time were significantly increased in mild hypothermic patients. CONCLUSION Mild hypothermia significantly impaired coagulation function in patients receiving thoracic surgeries, which could be detected by TEGs other than the standard coagulation tests. Temperature-adjusted TEGs may provide a preferable method of hemostatic monitoring and transfusion guidance in thoracic surgeries, which warrants further clinical investigations.
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Affiliation(s)
- Shangyi Hui
- Department of Anesthesiology, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Wang Fu Jing Street, Beijing, 100730, China
| | - Qian Zhang
- Department of Anesthesiology, Hebei Petrochina Central Hospital, No. 51 Xin Kai Road, Langfang, 065000, China
| | - Jiaxin Lang
- Department of Anesthesiology, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Wang Fu Jing Street, Beijing, 100730, China
| | - Jie Yi
- Department of Anesthesiology, Peking Union Medical College Hospital, No. 1 Shuai Fu Yuan, Wang Fu Jing Street, Beijing, 100730, China.
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Samimi MN, Hale A, Schults J, Fischer A, Roberts JA, Dhanani J. Clinical guidance for unfractionated heparin dosing and monitoring in critically ill patients. Expert Opin Pharmacother 2024; 25:985-997. [PMID: 38825778 DOI: 10.1080/14656566.2024.2364057] [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: 01/29/2024] [Accepted: 05/31/2024] [Indexed: 06/04/2024]
Abstract
INTRODUCTION Unfractionated heparin is a widely used anticoagulant in critically ill patients. It has a well-established safety profile and remains an attractive option for clinicians due to its short half-life and reversibility. Heparin has a unique pharmacokinetic profile, which contributes to significant inter-patient and intra-patient variability in effect. The variability in anticoagulant effect combined with heparin's short half-life mean close monitoring is required for clinical efficacy and preventing adverse effects. To optimize heparin use in critically ill patients, effective monitoring assays and dose adjustment strategies are needed. AREAS COVERED This paper explores the use of heparin as an anticoagulant and optimal approaches to monitoring in critically ill patients. EXPERT OPINION Conventional monitoring assays for heparin dosing have significant limitations. Emerging data appear to favor using anti-Xa assay monitoring for heparin anticoagulation, which many centers have successfully adopted as the standard. The anti-Xa assay appears have important benefits relative to the aPTT for heparin monitoring in critically ill patients, and should be considered for broader use.
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Affiliation(s)
- May N Samimi
- Faculty of Medicine, University of Queensland Centre for Clinical Research, The University of Queensland, Brisbane, Australia
- Department of Pharmacy, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Andrew Hale
- Discipline of Pharmacy, School of Clinical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Jessica Schults
- Faculty of Medicine, University of Queensland Centre for Clinical Research, The University of Queensland, Brisbane, Australia
- School of Nursing, Midwifery and Social Work, University of Queensland, Brisbane, Australia
- Herston Infectious Diseases Institute (HeIDI), Metro North Health, Brisbane, Australia
| | - Andreas Fischer
- Pharmacy Department, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Jason A Roberts
- Faculty of Medicine, University of Queensland Centre for Clinical Research, The University of Queensland, Brisbane, Australia
- Department of Pharmacy, Royal Brisbane and Women's Hospital, Brisbane, Australia
- Herston Infectious Diseases Institute (HeIDI), Metro North Health, Brisbane, Australia
- Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia
- Division of Anaesthesiology Critical Care Emergency and Pain Medicine, Nîmes University Hospital, University of Montpellier, Nîmes, France
| | - Jayesh Dhanani
- Faculty of Medicine, University of Queensland Centre for Clinical Research, The University of Queensland, Brisbane, Australia
- Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Australia
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Burke A, Reems M, Spriggs M. Point-of-care viscoelastic coagulation monitor parameters in Amazon parrots (Amazona spp.). J Vet Emerg Crit Care (San Antonio) 2024; 34:238-244. [PMID: 38761063 DOI: 10.1111/vec.13386] [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: 10/17/2022] [Revised: 04/06/2023] [Accepted: 05/04/2023] [Indexed: 05/20/2024]
Abstract
OBJECTIVE To evaluate the feasibility of the point-of-care viscoelastic coagulation monitor (VCM) in Amazon parrots (Amazona spp.) and describe the parameters with fresh whole-blood samples in healthy Amazon parrots. DESIGN A total of 18 Amazon parrots were enrolled. Physical examinations, a CBC, and a biochemistry profile, including bile acids, were performed on all parrots. VCM tracings were obtained at the time of venipuncture for baseline laboratory work. MEASUREMENTS AND MAIN RESULTS The median clot time was 2102 seconds (range: 38.6-3599 s), median clot formation time was 929 seconds (range: 21.4-1711 s), median alpha angle was 20 (range: 6-67), and the median maximum clot formation was 8.5 (range: 0-36). The median lysis index at 30 minutes (LI30) was 100 (range: 98-100), and the median lysis index at 45 minutes (LI45) was 100 (range: 90-100). Of 18 samples, alpha angles were not reported in 7 samples, LI30 was not reported in 10 samples, and LI45 was not reported in 12 samples. Of the qualitative curves, 6 reflected normal mammalian curves, and the remainder were consistent with a hypocoaguable state. CONCLUSIONS The results were markedly variable, with the majority of VCM tracings being hypocoagulable in comparison with reference intervals established for dogs and cats. Using these protocols, the VCM is not reliable in Amazon parrots. Future areas of investigation include altering the temperature during sample analysis, the use of activators, or an exchange of clotting reagents for an extrinsic pathway activator, which may contribute to the success of this device in avian species.
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Affiliation(s)
- Amanda Burke
- Emergency & Critical Care Department, BluePearl Veterinary Partners, Tampa, Florida, USA
| | - Miryam Reems
- Emergency & Critical Care Department, BluePearl Veterinary Partners, Tampa, Florida, USA
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Krekis A, King JN, D'Arcy-Howard D, Stapleton N, Elliott J, Pelligand L. Effect of meloxicam or robenacoxib administration timing on renal function and postoperative analgesia in cats undergoing ovariohysterectomy: A randomized, blinded, controlled clinical trial. J Vet Pharmacol Ther 2024; 47:175-186. [PMID: 38235901 DOI: 10.1111/jvp.13427] [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: 08/07/2023] [Revised: 12/10/2023] [Accepted: 01/08/2024] [Indexed: 01/19/2024]
Abstract
We evaluated the effect of administration timing of meloxicam and robenacoxib on renal function, platelet cyclo-oxygenase and perioperative analgesia in 60 cats undergoing ovariohysterectomy, in a prospective randomized blinded controlled study. Twelve cats were randomly allocated to one subcutaneous treatment group: meloxicam (0.2 mg/kg) or robenacoxib (2 mg/kg) at admission (MA, RA), at induction (MI, RI) and robenacoxib at the end of surgery (RE). All cats received the same anaesthesia protocol. Plasma renin activity (PRA), plasma creatinine, drug concentrations and serum thromboxane (TxB2) were measured sequentially. Anaesthesia significantly increased PRA, as activity at end of the surgery was higher than 2 h later (mean ± SD: 26.6 ± 2.8 versus 10.0 ± 3.9 ng/mL/h). PRA remained higher at 2 h post-surgery in admission groups compared to induction groups (p = .01). Serum TxB2 was lower with meloxicam than robenacoxib (p = .001), and was lower in the MA than each robenacoxib group at catheter placement. Admission groups (16/24 from RA and MA groups) received earlier rescue analgesia than other groups (p = .033). In conclusion, the renin-angiotensin system was activated during anaesthesia despite cyclo-oxygenase inhibition, possibly due to hypotension or surgical stimulation. There was no effect of drug or timing on the markers of renal function but one cat receiving meloxicam at induction had suspected IRIS grade II acute kidney injury.
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Affiliation(s)
| | | | - Duncan D'Arcy-Howard
- Department of Clinical Science and Services, Beaumont Sainsbury Animal Hospital, Royal Veterinary College, University of London, London, UK
| | - Nadene Stapleton
- Department of Clinical Science and Services, Beaumont Sainsbury Animal Hospital, Royal Veterinary College, University of London, London, UK
| | - Jonathan Elliott
- Department of Comparative Biomedical Sciences, Royal Veterinary College, University of London, London, UK
| | - Ludovic Pelligand
- Department of Comparative Biomedical Sciences, Royal Veterinary College, University of London, London, UK
- Department of Clinical Science and Services, Queen Mother Hospital for Animals, Royal Veterinary College, University of London, London, UK
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Moreno D, Cosford K, Snead E, Carr A. Assessment of hemostasis in hyperthyroid and euthyroid cats using two viscoelastic assays and platelet aggregometry. J Vet Intern Med 2024; 38:1377-1383. [PMID: 38465916 PMCID: PMC11099719 DOI: 10.1111/jvim.17038] [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: 11/17/2023] [Accepted: 02/27/2024] [Indexed: 03/12/2024] Open
Abstract
BACKGROUND Hyperthyroidism in humans is associated with a hypercoagulable state and an increased risk of thromboembolism. OBJECTIVE To evaluate hemostatic variables in hyperthyroid and euthyroid cats with the hypothesis that hyperthyroid cats will have evidence of altered hemostasis consistent with a potential hypercoagulable state. ANIMALS Client-owned hyperthyroid (n = 16) and euthyroid (n = 15) cats over 8 years of age. METHODS Prospective observational study. Hyperthyroid and euthyroid cats were enrolled. Rotational thromboelastometry (ROTEM), whole-blood platelet impedance aggregometry (WBPIA) and a point-of-care viscoelastic coagulation monitor (VCM-Vet) were performed immediately after minimally traumatic venipuncture under sedation. RESULTS Hyperthyroid cats had significantly higher values for variables as assessed by VCM-Vet: A10 (34 [17-47] vs 25 [17-38], P = .003); A20 (39.5 [23-55] vs 31 [21-45], P = .003); and MCF (41 [24-58] vs 35 [22-49], P = .03). Hyperthyroid cats had significantly different values versus the euthyroid cohort as assessed by different ROTEM channels: increased A10, INTEM (61.5 [39-75] vs 54 [23-66], P = .007) and FIBTEM (18 [10-35] vs 13 [2-27], P = .01); increased A20, INTEM (68 [45-78] vs 61 [30-70], P = .006) and FIBTEM (17 [10-34] vs 11 [2-25], P = .002); increased MCF, EXTEM (72 [65-81] vs 69 [34-78], P = .04), INTEM (70 [45-85] vs 62 [35-71], P = .01) and FIBTEM (18 [13-37] vs 14 [3-27], P = .02); increased alpha angle, EXTEM (80 [68-85] vs 76 [41-84], P = .01); shortened CT, EXTEM (52.5 [29-73] vs 60 [52-92], P = .003) and FIBTEM (52.5 [16-75] vs 65 [53-165], P = .001); and decreased ML, FIBTEM (20 [1-36] vs 33 [19-59], P <.001). No significant differences were found with WBPIA. CONCLUSIONS AND CLINICAL IMPORTANCE The hyperthyroid cats in this study had evidence of altered hemostasis as assessed by 2 viscoelastic methodologies, and characterized by increased clot amplitude, firmness, and faster coagulation times vs euthyroid controls.
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Affiliation(s)
- Daniel Moreno
- Department of Small Animal Clinical SciencesWestern College of Veterinary Medicine, University of SaskatchewanSaskatoonCanada
| | - Kevin Cosford
- Department of Small Animal Clinical SciencesWestern College of Veterinary Medicine, University of SaskatchewanSaskatoonCanada
| | - Elisabeth Snead
- Department of Small Animal Clinical SciencesWestern College of Veterinary Medicine, University of SaskatchewanSaskatoonCanada
| | - Anthony Carr
- Department of Small Animal Clinical SciencesWestern College of Veterinary Medicine, University of SaskatchewanSaskatoonCanada
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Hall KE, Tucker C, Dunn JA, Webb T, Watts SA, Kirkman E, Guillaumin J, Hoareau GL, Pidcoke HF. Breaking barriers in trauma research: A narrative review of opportunities to leverage veterinary trauma for accelerated translation to clinical solutions for pets and people. J Clin Transl Sci 2024; 8:e74. [PMID: 38715566 PMCID: PMC11075112 DOI: 10.1017/cts.2024.513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/20/2024] [Accepted: 03/25/2024] [Indexed: 08/10/2024] Open
Abstract
Trauma is a common cause of morbidity and mortality in humans and companion animals. Recent efforts in procedural development, training, quality systems, data collection, and research have positively impacted patient outcomes; however, significant unmet need still exists. Coordinated efforts by collaborative, translational, multidisciplinary teams to advance trauma care and improve outcomes have the potential to benefit both human and veterinary patient populations. Strategic use of veterinary clinical trials informed by expertise along the research spectrum (i.e., benchtop discovery, applied science and engineering, large laboratory animal models, clinical veterinary studies, and human randomized trials) can lead to increased therapeutic options for animals while accelerating and enhancing translation by providing early data to reduce the cost and the risk of failed human clinical trials. Active topics of collaboration across the translational continuum include advancements in resuscitation (including austere environments), acute traumatic coagulopathy, trauma-induced coagulopathy, traumatic brain injury, systems biology, and trauma immunology. Mechanisms to improve funding and support innovative team science approaches to current problems in trauma care can accelerate needed, sustainable, and impactful progress in the field. This review article summarizes our current understanding of veterinary and human trauma, thereby identifying knowledge gaps and opportunities for collaborative, translational research to improve multispecies outcomes. This translational trauma group of MDs, PhDs, and DVMs posit that a common understanding of injury patterns and resulting cellular dysregulation in humans and companion animals has the potential to accelerate translation of research findings into clinical solutions.
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Affiliation(s)
- Kelly E. Hall
- Department of Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
- Translational Trauma Research Alliance (TeTRA-Med), Fort Collins, CO, USA
| | - Claire Tucker
- Department of Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
- Translational Trauma Research Alliance (TeTRA-Med), Fort Collins, CO, USA
- One Health Institute, Office of the Vice President of Research and Department of Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Julie A. Dunn
- Translational Trauma Research Alliance (TeTRA-Med), Fort Collins, CO, USA
- Medical Center of the Rockies, University of Colorado Health North, Loveland, CO, USA
| | - Tracy Webb
- Department of Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
- Translational Trauma Research Alliance (TeTRA-Med), Fort Collins, CO, USA
| | - Sarah A. Watts
- Translational Trauma Research Alliance (TeTRA-Med), Fort Collins, CO, USA
- CBR Division, Medical and Trauma Sciences Porton Down, Salisbury, WI, UK
| | - Emrys Kirkman
- Translational Trauma Research Alliance (TeTRA-Med), Fort Collins, CO, USA
- CBR Division, Dstl Porton Down, Salisbury, WI, UK
| | - Julien Guillaumin
- Department of Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
- Translational Trauma Research Alliance (TeTRA-Med), Fort Collins, CO, USA
| | - Guillaume L. Hoareau
- Translational Trauma Research Alliance (TeTRA-Med), Fort Collins, CO, USA
- Emergency Medicine Department and Nora Eccles-Harrison Cardiovascular Research and Training Institute and Biomedical Engineering Department, University of Utah, Salt Lake City, UT, USA
| | - Heather F. Pidcoke
- Department of Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
- Translational Trauma Research Alliance (TeTRA-Med), Fort Collins, CO, USA
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Heniff AC, Lynch AM, Ruterbories LK, Minter LJ, Georoff TA, Balko JA. INVESTIGATION OF A POINT-OF-CARE VISCOELASTIC COAGULATION MONITOR AND ITS COMPARISON TO THROMBOELASTOGRAPHY IN CLINICALLY HEALTHY AFRICAN ELEPHANTS ( LOXODONTA AFRICANA). J Zoo Wildl Med 2024; 55:164-172. [PMID: 38453499 DOI: 10.1638/2022-0158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2023] [Indexed: 03/09/2024] Open
Abstract
Elephant endotheliotropic herpesvirus (EEHV) can induce fatal hemorrhagic disease (HD) in African elephants (Loxodonta africana). Once clinical signs develop, progression is rapid, even with aggressive treatment. There is a critical need to develop point-of-care diagnostic tests to aid in identification of EEHV-HD prior to the onset of overt clinical signs. Study objectives were to investigate a novel, point-of-care viscoelastic coagulation monitor (VCM Vet), compare the results to thromboelastography (TEG), and report traditional hemostatic analytes in adult African elephants. Whole blood was collected from seven clinically healthy elephants (four females and three males, 18-47 yr) and analyzed in duplicate via VCM Vet and kaolin-activated TEG 1-3 and 30 min following collection, respectively. Separated plasma was frozen for ancillary coagulation testing. Both analyses generated quantifiable clotting reactions with variables (median [range]) describing clot formation rate (VCM Vet, clot time = 682 s [530-987 s], clot formation time = 244 s [186-744 s], Alpha = 40° [14-47°]; TEG, reaction time = 6.2 min [3.7-11.8 min], kinetic time = 1.3 min [0.9-2.6 min], Alpha = 70° [57-77°]), clot strength (VCM Vet, maximum clot formation = 34 units [20-45 units]; TEG, maximum amplitude = 75 mm [69-80 mm], shear elastic modulus strength = 14.7 Kdynes/s [11.3-19.5 Kdynes/s]), and clot lysis (VCM Vet, lysis index at 30 min = 100% [100-99%], lysis index at 45 min = 98% [95-100%]; TEG, lysis index at 30 min = 0% [0-0.4%], lysis index at 60 min = 1.4% [0-2.6%]) recorded. Additional testing (median [range]) included D-dimer concentration (33 ng/ml [28-94 ng/ml]), prothrombin time (12.4 s [12.2-13.2 s]), activated partial thromboplastin time (17.2 s [14.2-18.8 s]), and fibrinogen concentration (297 [282-383] mg/dL). Tracings generated by VCM Vet and TEG were clinically similar, and there was visual agreement and minimal difference between quantitative variables for duplicate tests. VCM Vet is a promising, user-friendly tool for use in identification and management of coagulopathies in African elephants.
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Affiliation(s)
- Ashlyn C Heniff
- College of Veterinary Medicine, Departments of Clinical Sciences, North Carolina State University, Raleigh, NC 27606, USA
| | - Alex M Lynch
- College of Veterinary Medicine, Departments of Clinical Sciences, North Carolina State University, Raleigh, NC 27606, USA
| | - Laura K Ruterbories
- College of Veterinary Medicine, Departments of Clinical Sciences, North Carolina State University, Raleigh, NC 27606, USA
| | - Larry J Minter
- College of Veterinary Medicine, Departments of Clinical Sciences, North Carolina State University, Raleigh, NC 27606, USA
- North Carolina Zoo, Asheboro, NC 27205, USA
| | - Timothy A Georoff
- College of Veterinary Medicine, Departments of Clinical Sciences, North Carolina State University, Raleigh, NC 27606, USA
- North Carolina Zoo, Asheboro, NC 27205, USA
| | - Julie A Balko
- Molecular Biomedical Sciences, North Carolina State University, Raleigh, NC 27606, USA,
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11
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Huang Z, Huang DX, Wang YY, Jiang LJ, Wang YH, Dai J, Kang X, Wen Y, He SY. Features of thromboelastogram in populations exposed to or transferring from high altitude. Heliyon 2024; 10:e25223. [PMID: 38322976 PMCID: PMC10845907 DOI: 10.1016/j.heliyon.2024.e25223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 01/21/2024] [Accepted: 01/23/2024] [Indexed: 02/08/2024] Open
Abstract
Background Thromboelastogram (TEG) is an effective indicator that monitors the dynamic changes of blood coagulation in real-time. It still remains controversial about the performance and influence of coagulation at high altitude. The present study intends to describe comprehensively the clinical features of TEG in populations exposed to or transferring from high altitude. Methods Two groups were recruited in the present study. Group A included young males who worked at high-altitude (4888 m or 5418 m) areas for some time, while Group B included young males who had recently returned from high-altitude (4888 m or 5418 m) areas. Medical examinations were performed using portable devices. Spearman's test was used to evaluate the correlations between thromboelastogram (TEG) variables and other variables. Logistic regression analysis was used to analyze the factors affecting various abnormal TEG variables. Results A total of 51 adult males were included in the two groups. Significantly increased reaction time (R) and decreased maximum amplitude (MA) were found in group B (P < 0.05). No significant differences were observed in the comparisons of K and angle between the two groups. Various TEG variables were identified to be correlated with different coagulation and biochemical variables. Logistic regression analysis demonstrated that abnormal R was independently associated with direct bilirubin, and abnormal K was independently associated with the platelet count in Group A (P < 0.05). However, none of the factors were independently associated with abnormal TEG variables in Group B. Conclusion Populations exposed to or transferring from high altitudes are characterized by different TEG characteristics. Our findings give a comprehensive description of the complex interaction between TEG indexes, coagulation dynamics, and hematological parameters, which can help guide the development of appropriate medical approaches tailored to the unique needs of these populations.
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Affiliation(s)
- Zhu Huang
- Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu, 610000, China
- Department of General Surgery, The General Hospital of Western Theater Command, Chengdu, 610000, China
| | - Dong-xin Huang
- Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu, 610000, China
- Department of General Surgery, The General Hospital of Western Theater Command, Chengdu, 610000, China
- College of Medicine, Southwest Jiaotong University, Chengdu, 610000, China
| | - Yan-yan Wang
- Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu, 610000, China
- Department of Clinical Laboratory, The General Hospital of Western Theater Command, Chengdu, 610000, China
| | - Li-juan Jiang
- Department of General Surgery, The General Hospital of Western Theater Command, Chengdu, 610000, China
| | - Yong-hua Wang
- Department of Nursing, The General Hospital of Western Theater Command, Chengdu, 610000, China
| | - Jing Dai
- Laboratory of Basic Medicine, The General Hospital of Western Theater Command, Chengdu, 610000, China
| | - Xia Kang
- Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu, 610000, China
| | - Yi Wen
- Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu, 610000, China
- Department of General Surgery, The General Hospital of Western Theater Command, Chengdu, 610000, China
| | - Si-yi He
- Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu, 610000, China
- Department of Cardiac Surgery, The General Hospital of Western Theater Command, Chengdu, 610000, China
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12
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Rastoder E, Kamstrup P, Hedsund C, Jordan A, Sivapalan P, Rømer V, Falkvist F, Hamidi S, Bendstrup E, Sperling S, Dons M, Biering-Sørensen T, Falster C, Laursen CB, Carlsen J, Jensen JUS. Thrombelastography and Conventional Coagulation Markers in Chronic Obstructive Pulmonary Disease: A Prospective Paired-Measurements Study Comparing Exacerbation and Stable Phases. Int J Mol Sci 2024; 25:2051. [PMID: 38396728 PMCID: PMC10889576 DOI: 10.3390/ijms25042051] [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: 12/16/2023] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Chronic Obstructive Pulmonary Disease (COPD) exacerbation is known for its substantial impact on morbidity and mortality among affected patients, creating a significant healthcare burden worldwide. Coagulation abnormalities have emerged as potential contributors to exacerbation pathogenesis, raising concerns about increased thrombotic events during exacerbation. The aim of this study was to explore the differences in thrombelastography (TEG) parameters and coagulation markers in COPD patients during admission with exacerbation and at a follow-up after discharge. This was a multi-center cohort study. COPD patients were enrolled within 72 h of hospitalization. The baseline assessments were Kaolin-TEG and blood samples. Statistical analysis involved using descriptive statistics; the main analysis was a paired t-test comparing coagulation parameters between exacerbation and follow-up. One hundred patients participated, 66% of whom were female, with a median age of 78.5 years and comorbidities including atrial fibrillation (18%) and essential arterial hypertension (45%), and sixty-five individuals completed a follow-up after discharge. No significant variations were observed in Kaolin-TEG or conventional coagulation markers between exacerbation and follow-up. The Activated Partial Thromboplastin Clotting Time (APTT) results were near-significant, with p = 0.08. In conclusion, TEG parameters displayed no significant alterations between exacerbation and follow-up.
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Affiliation(s)
- Ema Rastoder
- Section of Respiratory Medicine, Department of Medicine, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark; (E.R.); (A.J.); (P.S.); (V.R.); (F.F.)
| | - Peter Kamstrup
- Section of Respiratory Medicine, Department of Medicine, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark; (E.R.); (A.J.); (P.S.); (V.R.); (F.F.)
| | - Caroline Hedsund
- Section of Respiratory Medicine, Department of Medicine, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark; (E.R.); (A.J.); (P.S.); (V.R.); (F.F.)
| | - Alexander Jordan
- Section of Respiratory Medicine, Department of Medicine, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark; (E.R.); (A.J.); (P.S.); (V.R.); (F.F.)
| | - Pradeesh Sivapalan
- Section of Respiratory Medicine, Department of Medicine, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark; (E.R.); (A.J.); (P.S.); (V.R.); (F.F.)
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark;
| | - Valdemar Rømer
- Section of Respiratory Medicine, Department of Medicine, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark; (E.R.); (A.J.); (P.S.); (V.R.); (F.F.)
| | - Frederikke Falkvist
- Section of Respiratory Medicine, Department of Medicine, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark; (E.R.); (A.J.); (P.S.); (V.R.); (F.F.)
| | - Sadaf Hamidi
- Section of Respiratory Medicine, Department of Medicine, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark; (E.R.); (A.J.); (P.S.); (V.R.); (F.F.)
| | - Elisabeth Bendstrup
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, 8200 Aarhus, Denmark; (E.B.); (S.S.)
- Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Søren Sperling
- Department of Respiratory Diseases and Allergy, Aarhus University Hospital, 8200 Aarhus, Denmark; (E.B.); (S.S.)
| | - Maria Dons
- Cardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev & Gentofte Hospital, University of Copenhagen, 2900 Hellerup, Denmark (T.B.-S.)
- Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2900 Hellerup, Denmark
| | - Tor Biering-Sørensen
- Cardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev & Gentofte Hospital, University of Copenhagen, 2900 Hellerup, Denmark (T.B.-S.)
- Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2900 Hellerup, Denmark
| | - Casper Falster
- Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of South Denmark, 5000 Odense, Denmark; (C.F.); (C.B.L.)
- Department of Respiratory Medicine, Odense University Hospital, 5000 Odense, Denmark
| | - Christian B. Laursen
- Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of South Denmark, 5000 Odense, Denmark; (C.F.); (C.B.L.)
- Department of Respiratory Medicine, Odense University Hospital, 5000 Odense, Denmark
| | - Jørn Carlsen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark;
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, 2100 Copenhagen, Denmark
| | - Jens-Ulrik Stæhr Jensen
- Section of Respiratory Medicine, Department of Medicine, Copenhagen University Hospital Herlev-Gentofte, 2900 Hellerup, Denmark; (E.R.); (A.J.); (P.S.); (V.R.); (F.F.)
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark;
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13
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Dang R, Issagholian L, Schmidt T, Raoufi P, Neeki CC, Neeki MM. Management of traumatic cervical epidural hematoma in patients on Xa-inhibitors: a case report and review of the literature. J Med Case Rep 2023; 17:488. [PMID: 37936238 PMCID: PMC10629042 DOI: 10.1186/s13256-023-04069-8] [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: 06/16/2023] [Accepted: 07/05/2023] [Indexed: 11/09/2023] Open
Abstract
BACKGROUND Cervical epidural hematoma (CEH) is defined as a collection of blood in the suprameningeal space. Mechanisms of this rare pathology include spontaneous, postsurgical, and traumatic as the main subtypes. This unique case of traumatic CEH represents an even smaller subset of these cases. Management varies by symptom presentation, mechanism of injury, and other contraindications. CASE PRESENTATION This case presents a 32 year old African American female on an oral anticoagulant sustaining traumatic cervical hematoma after a motor vehicle collision. Patient complained of neck, abdominal, and back pain. Imaging revealed a cervical spinal hematoma at the level of C3-C6. This case discusses the management of CEH for the general population and in the setting of anticoagulation. CONCLUSION Management of each case of CEH must be carefully considered and tailored based on their symptom presentation and progression of disease. As the use of anticoagulation including factor Xa inhibitors becomes more prevalent, there is greater need to understand the detailed pathophysiological aspect of the injuries. Targeted reversal agents such as Prothrombin Concentrate can be used for conservative treatment. Adjunct testing such as thromboelastogram can be used to help guide management.
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Affiliation(s)
- Robert Dang
- Department of Emergency Medicine, Arrowhead Regional Medical Center, 400 N. Pepper Ave, Suite # 107, Colton, CA, 92324, USA
| | - Leo Issagholian
- California University of Science and Medicine, Colton, CA, USA
| | - Tegan Schmidt
- Department of Emergency Medicine, Arrowhead Regional Medical Center, 400 N. Pepper Ave, Suite # 107, Colton, CA, 92324, USA
| | - Pasha Raoufi
- Department of Emergency Medicine, Arrowhead Regional Medical Center, 400 N. Pepper Ave, Suite # 107, Colton, CA, 92324, USA
| | - Cameron C Neeki
- Department of Emergency Medicine, Arrowhead Regional Medical Center, 400 N. Pepper Ave, Suite # 107, Colton, CA, 92324, USA
| | - Michael M Neeki
- Department of Emergency Medicine, Arrowhead Regional Medical Center, 400 N. Pepper Ave, Suite # 107, Colton, CA, 92324, USA.
- California University of Science and Medicine, Colton, CA, USA.
- Department of Surgery, Arrowhead Regional Medical Center, Colton, CA, USA.
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14
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Low D, Williams J. Surgical Management Of Feline Biliary Tract Disease: Decision-making and techniques. J Feline Med Surg 2023; 25:1098612X231206846. [PMID: 37933545 PMCID: PMC10812002 DOI: 10.1177/1098612x231206846] [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] [Indexed: 11/08/2023]
Abstract
PRACTICAL RELEVANCE Diseases of the hepatobiliary system are not uncommon in first-opinion practice. The anatomy of the feline hepatobiliary tract differs from that of dogs and may predispose cats to inflammatory hepatobiliary disease. Case management can be challenging, and the prognosis is variable and dependent on the underlying disease process. CLINICAL CHALLENGES Biliary tract disease in the cat has non-specific clinical signs that overlap with those of diseases of other body systems. Diagnostic tests of the hepatobiliary system are widely available, but interpretation of results can be challenging. Deciding on medical or surgical management can also be challenging; for example, various degrees of cholestasis may be seen with different diseases and disease severities, and will influence the decision to manage the patient medically or surgically. Surgery is indicated in cases of bile peritonitis, severe cholestasis, focal neoplasia or disease that is refractory to medical management. Intensive perioperative and postoperative management, with 24 h hospitalisation facilities, is essential. AUDIENCE This review article is written for the small animal general/primary care practitioner, with an emphasis on decision-making in the surgical management of feline hepatobiliary disease. EVIDENCE BASE Evidence available in the published literature is reviewed and presented, and the inherent limitations are discussed.
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Affiliation(s)
| | - John Williams
- Vets Now 24/7 Hospital Manchester, Whitefield, Manchester M45 6TQ, UK
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15
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Rank K, Lynch AM, Ruterbories LK, Li RHL, Ueda Y. Evaluation of thrombin generation in dogs administered clopidogrel. Front Vet Sci 2023; 10:1194242. [PMID: 37680387 PMCID: PMC10481958 DOI: 10.3389/fvets.2023.1194242] [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: 03/26/2023] [Accepted: 08/11/2023] [Indexed: 09/09/2023] Open
Abstract
Introduction The antiplatelet effect of clopidogrel can vary between patients. A modified thromboelastography (TEG) protocol (TEG-Platelet Mapping assay® [TEG-PM]) can be used for clopidogrel monitoring but is not widely available. Thrombin generation (TG) assays could offer a novel alternative. The main objective of this pilot study was to assess TG assay variables (lag time, peak, endogenous thrombin potential [ETP]) in dogs before and after 7 days of clopidogrel administration and compare with TEG-PM variables (maximum amplitude [MA]-ADP and percentage (%) inhibition). Methods Six healthy mix-breed dogs were enrolled in this pilot study. Blood samples for platelet count, TG assays, and TEG-PM were obtained at two time points, corresponding to baseline, and after 7 days of clopidogrel administration (mean 2.3 +/- 0.3 mg/kg PO q24 hours). Data were then compared with a Student's t-test. Results There was no significant change in TG assay variables performed on platelet poor plasma after 7 days of clopidogrel administration: lag time (Day 1: 1.8 +/- 0.2 min, Day 7: 1.8 +/- 0.2 min, p = 0.42); peak (Day 1: 76 +/- 7 nM, Day 7: 72 +/- 10 nM, p = 0.49); and ETP (Day 1: 399 +/- 27 nM*min, Day 7: 392 +/- 32 nM*min; p = 0.49). There were significant changes in TEG MA-ADP (Day 1: 19 +/- 8 mm, Day 7: 9 +/- 6 mm, p = 0.04) and % inhibition (Day 1: 58 +/- 27, Day 7: 99 +/- 0.3, p = 0.02). Discussion Clopidogrel administration did not lead to changes in TG assay variables performed on platelet poor plasma samples, despite concomitant changes in TEG-PM variables consistent with platelet inhibition. Based on this pilot study, thrombin generation performed on platelet poor plasma may not be a useful antiplatelet monitoring tool in dogs.
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Affiliation(s)
- Kaitlyn Rank
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Alex M. Lynch
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Laura K. Ruterbories
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Ronald H. L. Li
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Yu Ueda
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
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16
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Bassan T, Pastor J, Agulla B, Jornet O, Martorell J. Reference Range of Kaolin-Activated Thromboelastography (TEG) Values in Healthy Pet Rabbits ( Oryctolagus cuniculus). Animals (Basel) 2023; 13:2389. [PMID: 37508166 PMCID: PMC10376071 DOI: 10.3390/ani13142389] [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: 04/28/2023] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Thromboelastography (TEG) is a viscoelastic technique that allows the examination of both cellular and plasma protein clotting factors. Thromboelastography helps to investigate the underlying coagulopathy and to monitor therapeutic modalities. Although viscoelastic techniques have been used in human and veterinary medicine, reference ranges in pet rabbits are missing. The objective of this study is to establish the reference-range values of TEG parameters in healthy pet rabbits. 24 healthy pet rabbits of different breeds were included: 16 crossbreeds, four Californians, two lops, one lionhead, and one angora. Four rabbits were less than one year old and 20 were older than one year. Twelve rabbits were neutered females, 10 neutered males, and two were intact females. Health status was assessed through a physical examination, a complete blood work, and a coagulation profile. A TEG 5000 Thromboelastograph Hemostasis System was used with kaolin-activated citrated whole blood. All samples were analysed 30 min postextraction. The TEG reference ranges were reaction time (R) 1.4-6.9 min; clot formation time (K) 0.8-2.2 min; α angle 65.8-82.2 degrees; maximal amplitude (MA) 53.7-73.5 mm; measure of clot strength/firmness (G-value) 5796.6-13,885.9 dyn/cm2; and percentage of clot lysis in 30 min (LY30%) 0-41.5%. This study provides the reference ranges of TEG in pet rabbits.
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Affiliation(s)
- Tiziana Bassan
- Fundació Hospital Clínic Veterinari, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
| | - Josep Pastor
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
| | - Beatriz Agulla
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
| | - Oriol Jornet
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
| | - Jaume Martorell
- Fundació Hospital Clínic Veterinari, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
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17
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Fu X, Lei T, Tang C, Peng J. Construction of an Antithrombotic and Anti-Inflammatory Polyethersulfone Membrane. Macromol Biosci 2023; 23:e2200543. [PMID: 37057668 DOI: 10.1002/mabi.202200543] [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: 12/07/2022] [Revised: 03/17/2023] [Indexed: 04/15/2023]
Abstract
In addition to being the core factor in thrombosis, thrombin is involved in various inflammatory disease responses, but few studies have examined whether and how it is involved in membrane-related inflammation. In this study, the thrombin inhibitor dabigatran is used to modify a polyethersulfone dialysis membrane. The modified membrane shows good hydrophilic properties and dialysis performance. It reduces the thrombin level in a targeted manner, thereby significantly inhibiting coagulation factor activation (based on the prothrombin time, international normalized ratio, activated partial thromboplastin time and thrombin time) and reducing the fibrinogen level and platelet adhesion. On thromboelastography, it shows excellent dynamic antithrombotic capacity. The modified membrane inhibited membrane-related inflammation by inhibiting the production of the inflammatory mediators C-reactive protein (CRP), interleukin-6 (IL-6), and interleukin-1β (IL-1β) via the thrombin/complement C5a pathway. Moreover, it is found to be safe in an in vivo study. Thus, the dabigatran-modified polyethersulfone membrane may reduce dialysis-related complications through its dual antithrombotic and anti-inflammatory effects.
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Affiliation(s)
- Xiao Fu
- Department of Hematology, National Hemophilia Comprehensive Care Center, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Ting Lei
- Powder metallurgy institute of central South University, Changsha, China
| | - Ci Tang
- College of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha, China
| | - Jie Peng
- Department of Hematology, National Hemophilia Comprehensive Care Center, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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18
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Bian Y, Song D, Fu Z, Jiang C, Xu C, Zhang L, Wang K, Wang S, Sun D. Carboxyl PEGylation of magnetic nanoparticles as antithrombotic and thrombolytic agents by calcium binding. J Colloid Interface Sci 2023; 638:672-685. [PMID: 36780849 DOI: 10.1016/j.jcis.2023.01.129] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/05/2023] [Accepted: 01/26/2023] [Indexed: 02/10/2023]
Abstract
Known to be biocompatible and hemocompatible, polyethylene glycol (PEG) has been widely used as anti-fouling coating of biomaterials. Nanoparticles coated with functionalized PEG were also investigated for their nano-cell interactions, but seldomly on the coagulation system, especially with platelets. Both experiments and molecular dynamic simulations indicate that terminal carboxylation of PEG promotes its binding with calcium, especially in the ionized form, which makes it potential anticoagulants. Further, the carboxyl PEGylated magnetic nanoparticle (HOOC-PEG2000-MNP) exhibits significantly increased anticoagulant and antiplatelet properties, by entering the open canalicular system (OCS) of human platelets and binding with the cytoplasmic calcium ions. HOOC-PEG2000-MNP also acts as effective thrombolytic agents in dissolving mature blood clots under oscillating magnetic field both in vitro and in vivo. Therefore, the carboxyl PEGylated magnetic nanoparticles are prototype agents for antithrombotic and thrombolytic therapies and provide a versatile platform for targeted and effective treatments of acute cardiovascular diseases.
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Affiliation(s)
- Yingxin Bian
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Danhong Song
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Zejun Fu
- Department of Physiology and Pathophysiology, Shanghai Key Laboratory of Bioactive Small Molecules, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Chao Jiang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China
| | - Chen Xu
- Department of Physiology and Pathophysiology, Shanghai Key Laboratory of Bioactive Small Molecules, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Lei Zhang
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China.
| | - Kun Wang
- School of Pharmaceutical Sciences, Wenzhou Medical College, University Town, Chashan, Wenzhou 325035, China.
| | - Shujun Wang
- Department of Blood Transfusion, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China.
| | - Dongping Sun
- Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China.
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Cavalerie R, Jolivet F, Launay M, Baudin Tréhiou C, Piazza S. Cervical vertebral veins and caudal cerebral sinuses thrombosis secondary to corticosteroid therapy for an immune‐mediated polyarthritis in a dog. VETERINARY RECORD CASE REPORTS 2023. [DOI: 10.1002/vrc2.587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Affiliation(s)
- Robin Cavalerie
- Neurology Department Centre Hospitalier Vétérinaire Languedocia Montpellier France
| | - Franck Jolivet
- Internal Medicine Department Centre Hospitalier Vétérinaire Languedocia Montpellier France
| | - Maheva Launay
- Diagnostic Imaging Department Centre Hospitalier Vétérinaire Languedocia Montpellier France
| | - Clément Baudin Tréhiou
- Diagnostic Imaging Department Centre Hospitalier Vétérinaire Languedocia Montpellier France
| | - Stéphanie Piazza
- Neurology Department Centre Hospitalier Vétérinaire Languedocia Montpellier France
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20
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Yozova ID, Kent MS, Jandrey KE. Effects of a single subcutaneous dose of enoxaparin on veterinary viscoelastic coagulation monitor variables in healthy cats: Double blind, placebo controlled cross-over trial. Vet Med (Auckl) 2022; 37:133-139. [PMID: 36495054 PMCID: PMC9889604 DOI: 10.1111/jvim.16602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 11/23/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Cats placed on anticoagulant medication require frequent monitoring. The veterinary viscoelastic coagulation monitor (VCM-Vet) could provide a convenient and cost-effective monitoring, enabling therapeutic decision making. HYPOTHESIS/OBJECTIVES Enoxaparin will lead to changes in VCM-Vet variables and these will correlate with antiXa activity. ANIMALS Twenty-one healthy cats. METHODS Cats were randomized to receive either enoxaparin (1 mg/kg) subcutaneously or 0.9% NaCl (equal volume) and crossed over with a 7-day washout period. The investigators were blinded to group allocation until data analysis. Jugular blood samples were drawn at time 0, and 2, 4, and 8 hours after injection for VCM-Vet analysis within 2 min of collection. Citrated plasma was frozen at -80°C for antiXa activity analysis. A Generalized Linear Model was completed to assess changes between baseline measurements and all time points. RESULTS Significant differences between the enoxaparin-treated cats and controls at for T0h and T2h were found and presented as mean ± SD for clotting time (enoxaparin, 593.4 ± 78.0 s; control, 448.5 ± 50.3 s, P < .001), clot formation time (enoxaparin, 183.1 ± 41.7 s; control, 155.4 ± 28.0 s, P = .001), and alpha angle (enoxaparin, 52.4 ± 6.1°; control, 56.9 ± 3.7 s, P = .003). AntiXa activity was significantly different between T0 and all other timepoints for the enoxaparin group (P < .001). There was no correlation between changes in clotting time and antiXa activity. CONCLUSIONS AND CLINICAL IMPORTANCE The VCM-Vet detects a difference at 2 hours after single-dose enoxaparin administration and it can be useful for anticoagulant therapy monitoring in cats.
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Affiliation(s)
- Ivayla D. Yozova
- Tāwharau Ora‐School of Veterinary ScienceMassey UniversityPalmerston NorthNew Zealand
| | - Michael S. Kent
- Department of Surgical and Radiological SciencesSchool of Veterinary Science, University of California, DavisDavisCaliforniaUSA
| | - Karl E. Jandrey
- Department of Surgical and Radiological SciencesSchool of Veterinary Science, University of California, DavisDavisCaliforniaUSA
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21
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Wang WH, Lynch AM, Balko JA, Duffy DJ, Robertson JB, Posner LP. Point-of-care viscoelastic coagulation assessment in healthy dogs during the perianesthetic period. BMC Vet Res 2022; 18:346. [PMID: 36104699 PMCID: PMC9472389 DOI: 10.1186/s12917-022-03442-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 09/08/2022] [Indexed: 11/24/2022] Open
Abstract
Background The viscoelastic coagulation monitor (VCM Vet) is a novel, portable device that provides a global assessment of hemostasis. The study aims were to evaluate serial viscoelastic analysis during the perianesthetic period in healthy dogs and to compare the agreement between two VCM Vet devices. Twenty healthy dogs undergoing orthopedic surgery were enrolled. Whole blood samples were collected from an intravenous catheter at four time points: baseline, 15 min after premedication, 60 min after inhalant initiation, and 60 min after inhalant termination. Viscoelastic tests were performed in duplicate on different devices, providing: clot time (CT; seconds), clot formation time (CFT; seconds), alpha angle (α; degrees), amplitude (units) at 10 (A10) and 20 (A20) minutes post clot time, maximum clot firmness (MCF; units), and lysis index (%) at 30 (Li30) and 45 (Li45) minutes post maximum clot formation. Results One hundred sixty samples were analyzed. The speed of CT and CFT significantly decreased an average of 25.5 s (95% confidence interval [CI]15.9–35.0) and 6.9 s (95% CI 3.1–10.7) per time point, respectively. There were no significant changes in clot strength or lysis variables. The Bland–Altman style plot shows an acceptable rate of agreement for all variables with intra-class correlation ranging from 0.64–0.94. Conclusion The rate of clot formation (CT and CFT) decreased over the perianesthetic period in healthy dogs undergoing surgery. These changes were small and occurred without changes in clot strength or fibrinolysis rate, thus were not clinically relevant. There was clinically acceptable consistency between devices. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03442-x.
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22
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Wheeler LR, Edwards TH, Heinz JA, Scott LLF, Grantham LE, Keesee JD, Henderson AF, Gerardo AC, Hoareau G, Bynum JA. Comparison of assessment of coagulation in healthy dogs by the TEG 6s and TEG 5000 viscoelastic analyzers. J Vet Diagn Invest 2022; 34:780-788. [PMID: 35854673 PMCID: PMC9446302 DOI: 10.1177/10406387221112638] [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] [Indexed: 11/16/2022] Open
Abstract
The TEG 6s (Haemonetics) point-of-care viscoelastic analyzer is portable, compact, simple to use, and has the potential for rapid viscoelastic analysis that can guide the treatment of veterinary patients at the site of care. Although approved for use in people, the TEG 6s has yet to be evaluated for hemostatic analysis in veterinary medicine. Citrated whole blood (CWB) was collected from 27 healthy dogs. An aliquot of CWB from each dog was diluted by 33% with an isotonic crystalloid, representing an in vitro model of hemodilution. Unaltered and diluted CWB samples were analyzed using 2 TEG 6s and 6 TEG 5000 (Haemonetics) analyzers. The 6 TEG 5000 analyzers ran duplicate analyses of either unaltered or diluted samples using 1 of 3 reagents (Haemonetics): Kaolin TEG, RapidTEG, or TEG Functional Fibrinogen. Duplicate TEG 5000 analyses were averaged and compared with a single TEG 6s analysis. Lin concordance correlation coefficient and Bland-Altman plots were used to evaluate agreement of reaction time, kinetic time, alpha angle, maximum amplitude (MA), and G value (G) for samples activated with Kaolin TEG, and agreement of MA for samples activated with RapidTEG between the 2 machines. Overall, agreement between the TEG 6s and TEG 5000 analyzers was poor. Viscoelastic measurements by the TEG 6s and TEG 5000 in healthy dogs were not all interchangeable. Agreement was satisfactory only for MA and G measurements of diluted blood samples activated with Kaolin TEG, and MA measurements for both unaltered and diluted blood samples activated with RapidTEG.
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Affiliation(s)
- Lance R. Wheeler
- College of Veterinary Medicine, Texas A&M
University, College Station, TX, USA
| | - Thomas H. Edwards
- U.S. Army Institute of Surgical Research, JBSA
Fort Sam Houston, TX, USA
- BluePearl Veterinary Specialists and the
College of Veterinary Medicine, Lincoln Memorial University, Harrogate, TN,
USA
| | - Justin A. Heinz
- College of Veterinary Medicine, Texas A&M
University, College Station, TX, USA
| | - Laura L. F. Scott
- U.S. Army Institute of Surgical Research, JBSA
Fort Sam Houston, TX, USA
| | - Lonnie E. Grantham
- U.S. Army Institute of Surgical Research, JBSA
Fort Sam Houston, TX, USA
- Oak Ridge Institute for Science and Education,
Oak Ridge, TN, USA
| | - Jeffrey D. Keesee
- U.S. Army Institute of Surgical Research, JBSA
Fort Sam Houston, TX, USA
| | - Alice F. Henderson
- U.S. Army Institute of Surgical Research, JBSA
Fort Sam Houston, TX, USA
| | - Angelina C. Gerardo
- Department of Defense Military Working Dog
Veterinary Service, JBSA Lackland Air Force Base, TX, USA
| | - Guillaume Hoareau
- Department of Surgery, University of Utah
Health, Salt Lake City, UT, USA
| | - James A. Bynum
- U.S. Army Institute of Surgical Research, JBSA
Fort Sam Houston, TX, USA
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23
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Qiao Y, Lu X. Thromboelastography Parameters in Urosepsis: A Retrospective Study. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:9142489. [PMID: 36072616 PMCID: PMC9402385 DOI: 10.1155/2022/9142489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/30/2022] [Accepted: 07/05/2022] [Indexed: 12/05/2022]
Abstract
Thromboelastography (TEG) is usually used to monitor coagulation disorder clinically. It is unclear whether TEG has association with urosepsis and sepsis-induced coagulopathy (SIC). The purpose of this study was to investigate the clinical significance of TEG parameters in urosepsis. 90 patients who were admitted to the Emergency Ward and Emergency Intensive Care Unit (EICU) of Ren Ji Hospital affiliated to Shanghai Jiao Tong University School of Medicine due to urinary infection from February 2014 to February 2022 were retrospectively studied. Urosepsis patients and non-sepsis patients were separately investigated according to the final discharge diagnosis and Sepsis 3.0. At the same time, patients with urosepsis were further divided into groups of SIC and non-SIC based on the definition of SIC. The data of clinical features, laboratory biomarkers, and TEG parameters were collected and analyzed. There were significant differences in white blood cell count, C-reactive protein (CRP), platelet count, procalcitonin (PCT), fibrinogen (FIB), international normalized ratio (INR), prothrombin time (PT), D-dimer, and incidence of urinary tract obstruction between the urosepsis group and non-sepsis group (P < 0.05). In the comparison with non-sepsis group, K value was significantly lower (P = 0.006), while α-angle (P = 0.003) and clot index (CI) (P = 0.048) were significantly higher in urosepsis group. The area under the K value curve excluding urosepsis was 0.667. The areas under CI and α-angle curves for diagnosing urosepsis were 0.682 and 0.621, respectively. The patients in SIC group had significantly higher K value, lower α-angle, and maximum amplitude (MA) than those in non-SIC group (P < 0.05). Coagulopathy is prone to occur in patients with urosepsis. TEG is helpful for assessment of hypercoagulable state in urosepsis and prediction of hypocoagulability in SIC patients implying the dynamic process of DIC.
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Affiliation(s)
- Yun Qiao
- Department of Emergency Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Xiaoye Lu
- Department of Emergency Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
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Hu B, Zhang L, Zhao ZS, Qi YC, Zhou W, Ma YL. The predictive value of Thromboelastography (TEG) parameters in vascular complications in patients with type 2 diabetes mellitus. J Diabetes Complications 2022; 36:108236. [PMID: 35773172 DOI: 10.1016/j.jdiacomp.2022.108236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/14/2022] [Accepted: 06/19/2022] [Indexed: 12/28/2022]
Abstract
AIMS The purpose of this research was to explore the association of TEG parameters (Reaction time, R; Clot kinetics, K; Alpha angle, α-angle; Maximum amplitude, MA) with vascular complications of type 2 diabetes mellitus (T2DM), and assess whether TEG parameters could predict T2DM patients with vascular complications. METHODS A total of 68 healthy controls (HC), 57 T2DM patients without vascular complications (NC), 18 T2DM patients with only microvascular complications (MIC), 196 T2DM patients with only macrovascular complications (MAC), and 94 T2DM patients with both microvascular and macrovascular complications (MIC+MAC) were recruited in this study. Participants' clinical information and TEG parameters were recorded. TEG parameters were analyzed by the Jonckheere-Terpstra trend test, assuming the vascular complication was progressing from HC → NC → MIC → MIC+MAC or HC → NC → MAC → MIC+MAC. Receiver operating characteristic (ROC) was performed to explore the diagnostic accuracy of TEG parameters in T2DM with vascular complications. RESULTS Shorter TEGK, higher TEG-α-angle, and higher TEG-MA were found in T2DM patients with both microvascular and macrovascular complications (MIC+MAC) group compared with healthy controls (HC) group and T2DM patients without vascular complications (NC) group (P < 0.05). Trend analysis showed that TEG-R/K decreased, but TEG-α-angle/MA increased gradually as the vascular complication progressed (P < 0.001). With stratification of urine microalbumin/creatinine ratio (UACR), diabetic nephropathy with macroalbuminuria (grade A3) behaves shorter TEGK, higher TEG-α-angle/MA compared with normal to mildly increased albuminuria (grade A1) and microalbuminuria (grade A2) (P < 0.05). ROC curves implied that TEGK, TEG-α-angle, and TEG-MA have moderate diagnostic values in T2DM without vascular complications (K-AUC: 0.780, α-angle-AUC: 0.773, and MA-AUC: 0.740) as well as T2DM with both microvascular and macrovascular complications (K-AUC: 0.778, α-angle-AUC: 0.757, and MA-AUC: 0.800). CONCLUSION TEG parameters are associated with the progression of vascular complications in T2DM, and it could be a diagnostic indicator for T2DM without vascular complications or with advanced vascular complications.
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Affiliation(s)
- Bin Hu
- Department of Clinical Laboratory, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Long Zhang
- Department of Endocrinology and Metabolism, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Zhang-Sheng Zhao
- Department of Blood Transfusion, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo, Zhejiang, People's Republic of China.
| | - Yang-Cong Qi
- Department of Blood Transfusion, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Wei Zhou
- Department of Blood Transfusion, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo, Zhejiang, People's Republic of China
| | - You-Li Ma
- Department of Blood Transfusion, Ningbo Medical Treatment Center Lihuili Hospital, Ningbo, Zhejiang, People's Republic of China
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Han HJ, Kim JH. Correlation Between D-Dimer Concentrations and Thromboelastography in Dogs With Critical Illness: A Retrospective, Cross-Sectional Study. Front Vet Sci 2022; 9:844022. [PMID: 35498739 PMCID: PMC9047750 DOI: 10.3389/fvets.2022.844022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 03/24/2022] [Indexed: 12/02/2022] Open
Abstract
A hospital-based, retrospective, cross-sectional study was performed to assess the correlation of kaolin-activated thromboelastography (TEG) with D-dimer concentrations in 59 dogs with critical illness. Dogs were included if they had one or more serious disease detected upon performing TEG and D-dimer concentration determination based on the same blood sample. According to the coagulation index (CI), the 59 dogs were divided into two groups: a hypercoagulable state, with CI > 4 (44 dogs) and a normocoagulable state, with CI < 4 (15 dogs). Moreover, the 44 dogs with CI > 4 were divided into three sub-groups according to the disease etiology, i.e., inflammatory/tumor (I/T: 25 dogs), hemodynamic compromise (H: 11 dogs), and both conditions (I/TH: 8 dogs). The median values (interquartile ranges) of the CI and D-dimer concentration were 5.46 (4.55–6.33) and 410.25 (74.63–2206.12) in the 44 dogs with CI > 4 and 3.29 (2.92–3.75) and 1164.7 (50–2250.05) in the 15 dogs with CI < 4, respectively. The D-dimer concentration was significantly increased over the reference value in the 44 dogs with a CI > 4, particularly in dogs in the I/T group. It was also significantly increased in the 15 dogs with a CI < 4. D-dimer concentrations did not correlate with any of the TEG parameters in any of the dogs. Given this lack of correlation, the D-dimer concentration may be limited as an indicator of a possible hypercoagulable state in dogs with critical illness.
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Affiliation(s)
- Hyun-Jung Han
- Department of Veterinary Emergency and Critical Care, Konkuk Veterinary Medical Teaching Hospital, Konkuk University, Seoul, South Korea
- KU Center for Animal Blood Medical Science, Konkuk University, Seoul, South Korea
| | - Jung-Hyun Kim
- KU Center for Animal Blood Medical Science, Konkuk University, Seoul, South Korea
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
- *Correspondence: Jung-Hyun Kim
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Xu Z, Chen L, Liu Y, Chen C, Sun Y, Miao Y, Wu T, Niu J, Wei J, Cao X. Study on the Interaction between Deuterium Clopidogrel and Omeprazole. Pharmacology 2022; 107:308-316. [DOI: 10.1159/000521721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/20/2021] [Indexed: 11/19/2022]
Abstract
<b><i>Introduction:</i></b> Dual antiplatelet therapy with aspirin in combination with a P2Y<sub>12</sub> receptor antagonist is a cornerstone for treating patients with acute coronary syndrome and in percutaneous coronary intervention. However, as this combination of antiplatelet therapy increases the risk of bleeding, proton pump inhibitors (PPIs) are currently recommended to prevent gastrointestinal ulcers and bleeding. The cytochrome P450 (CYP450) isoenzyme system metabolizes both clopidogrel (CLP) and PPIs. Unfortunately, omeprazole (OM) reduce the antiplatelet activity of CLP and increases the probability of recurrence of cardiovascular events by competitively inhibiting the CYP450 isoenzyme CYP2C19. <b><i>Methods:</i></b> To address these abovementioned problems, we designed and synthesized deuterium CLP (D-CL) using selective deuterium technology. Our previous research results showed that D-CL had better pharmacokinetic and pharmacodynamic properties. Thus, the HPLC-MS/MS method, cocktail method, Born method, electro-stimulated thrombus generation, and thrombus elastography were used to detect the production of thiol active metabolites (AM), CYP450 enzyme activities, platelet aggregation, time and length of thrombus formation, and the maximum clot strength after combination therapy. We investigated the pharmacokinetics and pharmacodynamics properties of D-CL combined with OM. <b><i>Results:</i></b> As compared to CLP, D-CL was less affected when combined with OM, which was reflected in lower inhibitory effects of CYP450 enzyme activities, a greater area under the curve of AM, and better antiplatelet and antithrombotic effects. <b><i>Conclusion:</i></b> D-CL may reduce drug-drug interactions and address the clinical disadvantages of CLP.
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Excitement-Induced Cutaneous Bleeding (Haematidrosis-like) in a Dog. Vet Sci 2021; 8:vetsci8120327. [PMID: 34941854 PMCID: PMC8704122 DOI: 10.3390/vetsci8120327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/10/2021] [Accepted: 12/11/2021] [Indexed: 11/17/2022] Open
Abstract
A 15-month-old intact female Pitbull was referred because of recurrent, episodic, self-limiting, excitement-induced bleeding from nontraumatised skin. No abnormalities were detected upon physical examination. Subsequently, the dog went for a walk under the direct supervision of one of the authors, became overexcited and, after approximately five minutes, bloody liquid, with a patchy distribution, appeared along the hair shafts of the face and neck. The affected skin was congested, partially blanching on diascopy and bloody liquid was oozing from the follicular openings. Urticaria, dermographism and hypertension were excluded, the complete blood count and coagulation profile were within the reference ranges and an analysis of the bloody exudate confirmed its blood components. The cutaneous bleeding of the dog followed a self-limited course, with no episodes during the last two years. Clinical and laboratory findings and the long-term evolution of this dog bear striking similarities to haematidrosis, a rare human disease of multifactorial aetiology and equivocal pathogenesis.
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