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Tatsch Terres M, Machado Assis ML, Arsky Lombardi R, Balthazar da Silveira C, Amaral S. Adding Dexmedetomidine to Intra-articular Local Anesthetics Results in Prolonged Analgesia after Knee Arthroscopy: A Systematic Review and Meta-Analysis. Arthroscopy 2024:S0749-8063(24)00493-6. [PMID: 38992512 DOI: 10.1016/j.arthro.2024.06.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/15/2024] [Accepted: 06/27/2024] [Indexed: 07/13/2024]
Abstract
PURPOSE This systematic review and meta-analysis aims to assess the efficacy and safety of dexmedetomidine as an adjuvant to intra-articular (IA) injections of local anesthetics (LA) in adult patients undergoing knee arthroscopy. METHODS We searched MEDLINE, Embase, and Cochrane Library for randomized controlled trials (RCTs) comparing IA dexmedetomidine plus LA versus LA alone for knee arthroscopy in adults. We used the DerSimonian and Laird random-effects model for all outcomes, and conducted a sensitivity analysis with the leave-one-out method, as well as a subgroup analysis for the type of LA. We used R version 4.1.2 for all statistical analyses. RESULTS We included 16 RCT encompassing 799 patients, of whom 49.8% received IA dexmedetomidine. In the pooled analysis, time to first analgesia rescue was prolonged in almost 4 hours with the use of dexmedetomidine (MD 229 min; p<0.001). We found statistically significant differences favoring dexmedetomidine in pain scores at rest and movement throughout the first 2, 6, 12 and 24 hours postoperatively (p<0.001). Although the mean difference (MD) ranged from -0.3 to -0.9 cm, corresponding to a 3 to 9% reduction in pain scores, this change is not clinically significant when compared to the minimal clinically important difference (MCID). Additionally, the intervention group showed a statistically significant reduction in cumulative opioid consumption over 24 hours (MD -4.5 mg; p<0.001). However, this reduction did not meet the threshold for the MCID. There was no difference between groups on the incidence of hypotension (p=0.190), bradycardia (p=0.430) and postoperative nausea and vomiting (p=0.550). CONCLUSIONS Adding dexmedetomidine to LA in IA injections for knee arthroscopy significantly extended analgesia duration. Additionally, it lowered pain scores and opioid use, although these effects did not reach the MCID. Furthermore, this addition did not increase the risk of adverse events.
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Affiliation(s)
| | | | | | | | - Sara Amaral
- Department of Anesthesiology, Regional Hospital Deputado Afonso Guizzo, Araranguá, Brazil.
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Seker M, Aktas Yildirim S, Ulugol H, Gucyetmez B, Toraman F. Cardiovascular Effects of Tourniquet Application with Cardiac Cycle Efficiency: A Prospective Observational Study. J Clin Med 2024; 13:2745. [PMID: 38792287 PMCID: PMC11122613 DOI: 10.3390/jcm13102745] [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: 02/29/2024] [Revised: 04/24/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024] Open
Abstract
Objectives: The impact of the tourniquet on cardiac efficiency remains unknown. This study aimed to assess the impact of the tourniquet on cardiac cycle efficiency (CCE) and to interpret how general anesthesia (GA) or combined spinal epidural anesthesia (CSEA) affects this during surgery using cardiac energy parameters. Methods: This prospective observational study included 43 patients undergoing elective unilateral total knee arthroplasty (TKA) with a tourniquet divided into GA (n = 22) and CSEA (n = 21) groups. Cardiac energy parameters were measured before anesthesia (T1), pre-tourniquet inflation (T2), during inflation (T3-T8), and post-deflation (T9). The estimated power of the study was 0.99 based on the differences and standard deviations in CCE at T2-T3 for all patients (effect size: 0.88, alpha error: 0.05). Results: CCE decreased significantly more at T3 in the GA group than in the CSEA group, whereas dP/dtmax and Ea increased more (p < 0.05, p < 0.001, and p < 0.01, respectively). At T9, CCE increased significantly in the GA group, whereas dP/dtmax and Ea decreased (p < 0.05, p < 0.001, and p < 0.001, respectively). Conclusions: The tourniquet reduces cardiac efficiency through compensatory responses, and CSEA may mitigate this effect.
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Affiliation(s)
- Merve Seker
- Department of Anesthesiology and Reanimation, Acibadem Mehmet Ali Aydinlar University School of Medicine, Istanbul 34752, Turkey; (S.A.Y.); (H.U.); (B.G.); (F.T.)
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Özer A, Şengel N, Küçük A, Yığman Z, Özdemir Ç, Kılıç Y, Dursun AD, Bostancı H, Kip G, Arslan M. The Effect of Cerium Oxide (CeO 2) on Ischemia-Reperfusion Injury in Skeletal Muscle in Mice with Streptozocin-Induced Diabetes. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:752. [PMID: 38792935 PMCID: PMC11122892 DOI: 10.3390/medicina60050752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/23/2024] [Accepted: 04/27/2024] [Indexed: 05/26/2024]
Abstract
Objective: Lower extremity ischemia-reperfusion injury (IRI) may occur with trauma-related vascular injury and various vascular diseases, during the use of a tourniquet, in temporary clamping of the aorta in aortic surgery, or following acute or bilateral acute femoral artery occlusion. Mitochondrial dysfunction and increased basal oxidative stress in diabetes may cause an increase in the effects of increased reactive oxygen species (ROS) and mitochondrial dysfunction due to IRI. It is of great importance to examine therapeutic approaches that can minimize the effects of IRI, especially for patient groups under chronic oxidative stress such as DM. Cerium oxide (CeO2) nanoparticles mimic antioxidant enzymes and act as a catalyst that scavenges ROS. In this study, it was aimed to investigate whether CeO2 has protective effects on skeletal muscles in lower extremity IRI in mice with streptozocin-induced diabetes. Methods: A total of 38 Swiss albino mice were divided into six groups as follows: control group (group C, n = 6), diabetes group (group D, n = 8), diabetes-CeO2 (group DCO, n = 8), diabetes-ischemia/reperfusion (group DIR, n = 8), and diabetes-ischemia/reperfusion-CeO2 (group DIRCO, n = 8). The DCO and DIRCO groups were given doses of CeO2 of 0.5 mg/kg intraperitoneally 30 min before the IR procedure. A 120 min ischemia-120 min reperfusion period with 100% O2 was performed. At the end of the reperfusion period, muscle tissues were removed for histopathological and biochemical examinations. Results: Total antioxidant status (TAS) levels were found to be significantly lower in group DIR compared with group D (p = 0.047 and p = 0.022, respectively). In group DIRCO, total oxidant status (TOS) levels were found to be significantly higher than in group DIR (p < 0.001). The oxidative stress index (OSI) was found to be significantly lower in group DIR compared with group DCO (p < 0.001). Paraoxanase (PON) enzyme activity was found to be significantly increased in group DIR compared with group DCO (p < 0.001). The disorganization and degeneration score for muscle cells, inflammatory cell infiltration score, and total injury score in group DIRCO were found to be significantly lower than in group DIR (p = 0.002, p = 0.034, and p = 0.001, respectively). Conclusions: Our results confirm that CeO2, with its antioxidative properties, reduces skeletal muscle damage in lower extremity IRI in diabetic mice.
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Affiliation(s)
- Abdullah Özer
- Department of Cardiovascular Surgery, Faculty of Medicine, Gazi University, Ankara 06510, Turkey;
| | - Necmiye Şengel
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Gazi University, Ankara 06490, Turkey;
| | - Ayşegül Küçük
- Department of Physiology, Faculty of Medicine, Kutahya Health Sciences University, Kutahya 43020, Turkey;
| | - Zeynep Yığman
- Department of Histology and Embryology, Faculty of Medicine, Gazi University, Ankara 06510, Turkey;
- Neuroscience and Neurotechnology Center of Excellence (NÖROM), Gazi University, Ankara 06830, Turkey
| | - Çağrı Özdemir
- Department of Anesthesiology and Reanimation, Faculty of Medicine, Gazi University, Ankara 06510, Turkey; (Ç.Ö.); (G.K.)
| | - Yiğit Kılıç
- Department of Pediatric Cardiovascular Surgery, Gazi Yaşargil Education Research Hospital, Diyarbakır 21010, Turkey;
| | - Ali Doğan Dursun
- Department of Physiology, Faculty of Medicine, Atılım University, Ankara 06830, Turkey;
| | - Hasan Bostancı
- Department of General Surgery, Faculty of Medicine, Gazi University, Ankara 06510, Turkey;
| | - Gülay Kip
- Department of Anesthesiology and Reanimation, Faculty of Medicine, Gazi University, Ankara 06510, Turkey; (Ç.Ö.); (G.K.)
| | - Mustafa Arslan
- Life Sciences Application and Research Center, Gazi University, Ankara 06830, Turkey
- Laboratory Animal Breeding and Experimental Researches Center (GÜDAM), Gazi University, Ankara 06510, Turkey
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Corbett J, Rocks M, Wu M, Nemir S, Castro J, Gonzalez G, Azad A, Hacquebord J, Diamond S. Tourniquet Use in Extremity-Based Microsurgery. J Reconstr Microsurg 2024; 40:227-231. [PMID: 37467770 DOI: 10.1055/a-2132-9804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
BACKGROUND The use of tourniquets and their role in extremity-based microsurgery has not been thoroughly investigated. The purpose of this study was to investigate tourniquet use and its associated outcomes and complications. The authors hypothesize that tourniquets enhance visualization, bloodless approaches to vessel harvest, flap elevation, and anastomosis without added complications. METHODS A retrospective chart review was completed for patients who had undergone extremity-based microsurgery with the use of a tourniquet between January 2018 and February 2022 at two large academic institutions. Demographic characteristics, initial reasons for surgery, complications, and outcomes were recorded. Patients were separated into groups based on tourniquet use during three operative segments: (1) flap elevation, (2) vessel harvest, and (3) microvascular anastomosis. An internal comparison of complication rate was performed between cases for which a tourniquet was used for one operative segment to all cases in which it was not used for the same operative segment. Univariate and multivariate statistical analyses were performed to identify statistically significant results. RESULTS A total of 99 patients (106 surgeries) were included in this study across sites. The mean age was 41.2 years and 67.7% of the patients were male. The most common reason for microsurgical reconstruction was trauma (50.5%). The need for an additional unplanned surgery was the most common surgical complication (16%). A total of 70, 61, and 32% of procedures used a tourniquet for flap elevation, vessel harvest, and for anastomosis, respectively. Statistical analyses identified no difference in complication rates for procedures for which a tourniquet was or was not used for interventions. CONCLUSION Based on these results, the authors state that tourniquets can be utilized for extremity-based microsurgery to enable bloodless dissection without the concern of increased complication rates.
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Affiliation(s)
- John Corbett
- Department of Surgery, George Washington University, Washington, Dist. of Columbia
- Department of Surgery, Texas Tech University Health Science Center El Paso, El Paso, Texas
| | - Madeline Rocks
- Division of Hand Surgery, NYU Langone Health Department of Orthopedic Surgery, New York, New York
| | - Meagan Wu
- Sidney Kimmel Medical College, Thomas Jefferson University Philadelphia, Pennsylvania
| | - Stephanie Nemir
- Department of Surgery, Texas Tech University Health Science Center El Paso, El Paso, Texas
| | - Jose Castro
- Department of Surgery, Texas Tech University Health Science Center El Paso, El Paso, Texas
| | - Gilberto Gonzalez
- Department of Orthopaedic Surgery and Rehabilitation, Texas Tech University Health Sciences Center El Paso, El Paso, Texas
| | - Ali Azad
- Division of Hand Surgery, NYU Langone Health Department of Orthopedic Surgery, New York, New York
| | - Jacques Hacquebord
- Division of Hand Surgery, NYU Langone Health Department of Orthopedic Surgery, New York, New York
- NYU Langone Health Hansjörg Wyss Department of Plastic Surgery, New York, New York
| | - Shawn Diamond
- Department of Surgery, Texas Tech University Health Science Center El Paso, El Paso, Texas
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Liang W, Zhou C, Bai J, Zhang H, Jiang B, Wang J, Fu L, Long H, Huang X, Zhao J, Zhu H. Current advancements in therapeutic approaches in orthopedic surgery: a review of recent trends. Front Bioeng Biotechnol 2024; 12:1328997. [PMID: 38405378 PMCID: PMC10884185 DOI: 10.3389/fbioe.2024.1328997] [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: 10/27/2023] [Accepted: 01/25/2024] [Indexed: 02/27/2024] Open
Abstract
Recent advancements in orthopedic surgery have greatly improved the management of musculoskeletal disorders and injuries. This review discusses the latest therapeutic approaches that have emerged in orthopedics. We examine the use of regenerative medicine, including stem cell therapy and platelet-rich plasma (PRP) injections, to accelerate healing and promote tissue regeneration. Additionally, we explore the application of robotic-assisted surgery, which provides greater precision and accuracy during surgical procedures. We also delve into the emergence of personalized medicine, which tailors treatments to individual patients based on their unique genetic and environmental factors. Furthermore, we discuss telemedicine and remote patient monitoring as methods for improving patient outcomes and reducing healthcare costs. Finally, we examine the growing interest in using artificial intelligence and machine learning in orthopedics, particularly in diagnosis and treatment planning. Overall, these advancements in therapeutic approaches have significantly improved patient outcomes, reduced recovery times, and enhanced the overall quality of care in orthopedic surgery.
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Affiliation(s)
- Wenqing Liang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Chao Zhou
- Department of Orthopedics, Zhoushan Guanghua Hospital, Zhoushan, China
| | - Juqin Bai
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Hongwei Zhang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Bo Jiang
- Rehabilitation Department, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Jiangwei Wang
- Medical Research Center, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Lifeng Fu
- Department of Orthopedics, Shaoxing City Keqiao District Hospital of Traditional Chinese Medicine, Shaoxing, China
| | - Hengguo Long
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Xiaogang Huang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Jiayi Zhao
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
| | - Haibing Zhu
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, Zhoushan, China
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Radulovic A, Cerovac S. The history of tourniquet use in limb surgery. INTERNATIONAL ORTHOPAEDICS 2024; 48:603-609. [PMID: 37882842 DOI: 10.1007/s00264-023-06018-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 10/19/2023] [Indexed: 10/27/2023]
Abstract
PURPOSE As tourniquets have been present in medicine since almost its conception, understanding and following their development through time is not only an exercise in history but also an insight into the evolution of medical devices over more than two millennia. From simple leather bands wrapped around patients' limbs to the modernised digital devices used widely in surgical theatres globally, tourniquets have undergone tectonic change both in their design and application, moving from battlefields to hospitals. Hence, the aim of this article is to outline the historical development of these devices alongside their present and modern use. METHODS The historical development of emergency and surgical tourniquets is chronologically outlined, with particular emphasis on the impact of warfare on their widespread adoption in trauma and emergency medicine and elective surgery. Novel surgical trends and their impact on the future of tourniquet use are evaluated. RESULTS The development of tourniquets across two millennia has closely reflected both the scientific understanding of human physiology and anatomy as well as technological discoveries and advancements that have reshaped their design and application. Prominent figures in the field of surgery, such as Sushruta, Fabricius Hildanus, John Louis Petit, Joseph Lister, Harvey Cushing and James McEwen, all fundamentally influenced their evolution and helped popularise and modernise them. The views on their use have been controversial and drastically changed across different eras, with data collected from modern warfare serving to embed their use in clinical practice. CONCLUSION The historical development of tourniquets since pre-historic times represents an excellent outline of the adaptive nature of medicine, led, firstly, by scientific rigour and discipline and, secondly, by pioneers who serve as catalysts for change and improvement. The modern inflatable cuff tourniquets that are omnipresent in theatres globally will undoubtedly remain the standard of care for the foreseeable future. Tourniquets that can dynamically monitor blood pressure and consequently adjust inflation pressures, as well as ones with inbuilt axonal excitability monitoring, will further improve their safety profile, reduce associated complication rates and represent the next step in the evolution of these devices. Notably, there might be a shift away from tourniquet use altogether, reflected by the wide use of the wide-awake local anaesthesia no-tourniquet technique that has become the new norm in hand surgery.
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Affiliation(s)
- Aleksandar Radulovic
- Department of Plastic, Reconstructive and Hand Surgery, St George's Hospital NHS Foundation Trust, London, UK.
| | - Sonja Cerovac
- Department of Plastic, Reconstructive and Hand Surgery, St George's Hospital NHS Foundation Trust, London, UK
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Levit T, Lavoie DCT, Dunn E, Gallo L, Thoma A. Trigger Finger Release Using Wide-Awake Local Anesthesia No Tourniquet Versus Local Anesthesia With a Tourniquet: A Systematic Review and Meta-analysis. Hand (N Y) 2024:15589447231222517. [PMID: 38243708 DOI: 10.1177/15589447231222517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2024]
Abstract
Trigger finger release (TFR) is a common hand surgery, historically performed using a tourniquet. Recently, wide-awake local anesthesia no tourniquet (WALANT) has gained popularity due to ostensible advantages such as improved patient pain, satisfaction, lower rate of complications, and decreased cost. This systematic review compares outcomes of WALANT for TFR with local anesthesia with a tourniquet (LAWT). MEDLINE, Embase, CINAHL, Web of Science, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov were searched. All English-language peer-reviewed randomized and observational studies assessing TFR in adults were included. Quality of evidence was assessed with the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) system. Eleven studies (4 randomized controlled trials, 7 observational) including 1233 patients were identified. In the WALANT group, pain on injection was statistically nonsignificantly lower (mean difference [MD]: -1.69 points, 95% confidence interval [CI] = -4.14 to 0.76, P = .18) and postoperative pain was statistically lower in 2 studies. Patient and physician satisfaction were higher and analgesic use was lower in WALANT. There were no significant differences between groups for functional outcomes or rates of adverse events. Preoperative time was longer (MD: 26.43 minutes, 95% CI = 15.36 to 37.51, P < .01), operative time similar (MD: -0.59 minutes, 95% CI = -2.37 to 1.20, P = .52), postoperative time shorter (MD: -27.72 minutes, 95% CI = -36.95 to -18.48, P < .01), and cost lower (MD: -52.2%, 95% CI = -79.9% to -24.5%) in WALANT versus LAWT. The GRADE certainty of evidence of these results ranges from very low to low. This systematic review does not confirm superiority of WALANT over LAWT for TFR due to moderate to high risk of bias of included studies; further robust trials must be conducted.
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Affiliation(s)
- Tal Levit
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
| | - Declan C T Lavoie
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
| | - Emily Dunn
- Department of Surgery, Division of Plastic Surgery, McMaster University, Hamilton, ON, Canada
| | - Lucas Gallo
- Department of Surgery, Division of Plastic Surgery, McMaster University, Hamilton, ON, Canada
| | - Achilles Thoma
- Department of Surgery, Division of Plastic Surgery, McMaster University, Hamilton, ON, Canada
- Department of Health Research Methods, Evidence and Impact (HEI), McMaster University, Hamilton, ON, Canada
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Tanabe H, Oosawa K, Miura M, Mizuno S, Yokota T, Ueda T, Zushi Y, Nagata M, Murayama R, Abe-Doi M, Sanada H. Effect of a thin-tipped short bevel needle for peripheral intravenous access on the compressive deformation and displacement of the vein: A preclinical study. J Vasc Access 2024; 25:265-273. [PMID: 35773962 DOI: 10.1177/11297298221075169] [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: 11/16/2022] Open
Abstract
BACKGROUND Peripheral intravenous catheter (PIVC) insertion often fails on the first attempt. Risk factors include small vein size and dehydration, causing vein deformation and displacement due to puncture resistance of the vessel. The authors developed a short, thin-tipped bevel needle and compared its puncture performance with needles of four available PIVCs using an ex vivo model. METHODS The PIVC with the thin-tipped short bevel needle was compared to four available PIVCs using an ex vivo model which simulated the cephalic vein of the human forearm. The ex vivo model consisted of a porcine shoulder and porcine internal jugular vein, and was used for evaluation of the rate of vein deformation and vessel displacement during needle insertion. RESULTS An ex vivo model was created with a vessel diameter of 2.7-3.7 mm and a depth of 2-5 mm. The thin-tipped short bevel PIVC needle was associated with a significantly lower compressive deformation rate and venous displacement compared to the needles of the other four PIVCs. CONCLUSION The thin-tipped short bevel needle induced lower compressive deformation and displacement of the vein than the conventional needles. This needle has the potential to improve the first-attempt success rate of peripheral intravenous catheterization in patients with difficult venous access.
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Affiliation(s)
- Hidenori Tanabe
- Department of Advanced Nursing Technology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Research and Development Center, Terumo Corporation, Ashigarakami-gun, Kanagawa, Japan
| | - Kousuke Oosawa
- Research and Development Center, Terumo Corporation, Ashigarakami-gun, Kanagawa, Japan
| | - Manabu Miura
- Research and Development Center, Terumo Corporation, Ashigarakami-gun, Kanagawa, Japan
| | - Shinichi Mizuno
- Kofu Factory, Terumo Corporation, Nakakoma-gun, Yamanashi, Japan
| | - Takayuki Yokota
- Kofu Factory, Terumo Corporation, Nakakoma-gun, Yamanashi, Japan
| | - Takehiko Ueda
- Kofu Factory, Terumo Corporation, Nakakoma-gun, Yamanashi, Japan
| | - Yasunobu Zushi
- Research and Development Center, Terumo Corporation, Ashigarakami-gun, Kanagawa, Japan
| | - Misako Nagata
- Department of Imaging Nursing Science, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Global Nursing Research Center, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Ryoko Murayama
- Department of Advanced Nursing Technology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Global Nursing Research Center, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Mari Abe-Doi
- Department of Advanced Nursing Technology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Global Nursing Research Center, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Hiromi Sanada
- Global Nursing Research Center, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Department of Gerontological Nursing/Wound Care Management, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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Mace EH, Maiga AW, Beyene RT, Smith MC, Streams JR, Peetz AB, Dennis BM, Guillamondegui OD, Gondek SP. Vascular imaging immediately after tourniquet removal does not increase vasospasm risk. Injury 2024; 55:110974. [PMID: 37563047 DOI: 10.1016/j.injury.2023.110974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 07/22/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Prehospital tourniquet use is now standard in trauma patients with diagnosed or suspected extremity vascular injuries. Tourniquet-related vasospasm is an understudied phenomenon that may confound management by causing erroneous arterial pressure indices (APIs) and abnormalities on computed tomography angiography (CTA) that do not reflect true arterial injuries. We hypothesized that shorter intervals between tourniquet removal and CTA imaging and longer total tourniquet times would be correlated with a higher likelihood of false positive CTA. MATERIALS AND METHODS We performed a single-institution retrospective cohort study of patients presenting to a busy, urban Level 1 Trauma Center with prehospital tourniquets from 2019 to 2021. Patients who presented with a tourniquet disengaged upon arrival or who died prior to admission to the Trauma Unit were excluded. Tourniquet duration, time between tourniquet removal and CTA imaging (CTA interval), CTA findings, and management of extremity arterial injuries were extracted. The proportion of false positive injuries on CTA was assessed for correlation with increasing time interval from tourniquet removal to CTA imaging and correlation with increasing total tourniquet time using multivariable logistic regression. RESULTS 251 patients were identified with prehospital tourniquets. 127 underwent CTA of the affected extremity, 96 patients had an abnormal CTA finding, and 57 (45% of total CTA patients) had false positive arterial injuries on imaging. Using multivariable logistic regression, neither the CTA interval nor the tourniquet duration was associated with false positive CTA injuries. Female sex was associated with false positive injuries on CTA (OR 2.91, 95% CI: 1.01 - 8.39). Vasospasm was cited as a possible explanation by radiologists in 40% of false positive CTA reports. CONCLUSIONS Arterial vasospasm is a frequent finding on CTA after tourniquet use for extremity trauma, but concerns regarding tourniquet-related vasospasm should not alter trauma patient management. Neither the duration of tourniquet application nor the time interval since removal is associated with decreased CTA accuracy, and any delay in imaging does not appear to reduce the likelihood of vasospasm. These findings are important for supporting expedited care of trauma patients with severe extremity injuries.
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Affiliation(s)
- Eric H Mace
- Vanderbilt University Medical Center, Department of General Surgery, Nashville, Tennessee, Medical Center North, D-5203, Suite CCC-4312, 1161 21st Avenue South, Nashville, TN 37232-2730, USA
| | - Amelia W Maiga
- Vanderbilt University Medical Center, Division of Acute Care Surgery, Nashville, Tennessee, Medical Arts Building, Suite 404, 1211 21st Avenue South, Nashville Tennessee 37212-1750, USA.
| | - Robel T Beyene
- Vanderbilt University Medical Center, Division of Acute Care Surgery, Nashville, Tennessee, Medical Arts Building, Suite 404, 1211 21st Avenue South, Nashville Tennessee 37212-1750, USA
| | - Michael C Smith
- Vanderbilt University Medical Center, Division of Acute Care Surgery, Nashville, Tennessee, Medical Arts Building, Suite 404, 1211 21st Avenue South, Nashville Tennessee 37212-1750, USA
| | - Jill R Streams
- Vanderbilt University Medical Center, Division of Acute Care Surgery, Nashville, Tennessee, Medical Arts Building, Suite 404, 1211 21st Avenue South, Nashville Tennessee 37212-1750, USA
| | - Allan B Peetz
- Vanderbilt University Medical Center, Division of Acute Care Surgery, Nashville, Tennessee, Medical Arts Building, Suite 404, 1211 21st Avenue South, Nashville Tennessee 37212-1750, USA
| | - Bradley M Dennis
- Vanderbilt University Medical Center, Division of Acute Care Surgery, Nashville, Tennessee, Medical Arts Building, Suite 404, 1211 21st Avenue South, Nashville Tennessee 37212-1750, USA
| | - Oscar D Guillamondegui
- Vanderbilt University Medical Center, Division of Acute Care Surgery, Nashville, Tennessee, Medical Arts Building, Suite 404, 1211 21st Avenue South, Nashville Tennessee 37212-1750, USA
| | - Stephen P Gondek
- Vanderbilt University Medical Center, Division of Acute Care Surgery, Nashville, Tennessee, Medical Arts Building, Suite 404, 1211 21st Avenue South, Nashville Tennessee 37212-1750, USA
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Petkar S, Chakole V, Nayak A. Comprehensive Review of Anesthetic Evaluation and Management in Obese Female Patients Undergoing In Vitro Fertilization. Cureus 2023; 15:e47521. [PMID: 38021482 PMCID: PMC10664690 DOI: 10.7759/cureus.47521] [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: 09/19/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Obesity has become a global health epidemic with profound implications for various medical specialties, including reproductive medicine. This comprehensive review focuses on the anesthetic evaluation and management of obese patients undergoing in vitro fertilization (IVF) procedures. Obesity, as defined by BMI, is associated with infertility and poses unique challenges for anesthetic care. The review also addresses the timing of anesthesia concerning IVF procedures, the impact of obesity on IVF success rates, and the importance of emotional and psychological support for obese patients undergoing IVF. Challenges and future directions in the field are highlighted, focusing on ongoing research, emerging technologies, and the role of multidisciplinary teams in managing these complex cases. In conclusion, this review underscores the critical role of tailored anesthesia and perioperative care in optimizing outcomes for obese patients undergoing IVF. It provides valuable insights for anesthetic providers, reproductive specialists, and healthcare teams, emphasizing the need for a patient-centered approach to address the unique challenges posed by obesity in the context of assisted reproductive technology.
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Affiliation(s)
- Shubham Petkar
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Vivek Chakole
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Aishwarya Nayak
- Anaesthesiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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11
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Venkateswarlu Y, Mahanty PR, Sahu S, Sharma P, Nag DS. Effect of Tourniquet Deflation on Intracranial Pressure Measured by Ultrasound of the Optic Nerve Sheath Diameter in Patients Undergoing Orthopedic Surgery Under Spinal Anesthesia: An Observational Study. Cureus 2023; 15:e46700. [PMID: 38022169 PMCID: PMC10630625 DOI: 10.7759/cureus.46700] [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] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Background Orthopedic surgeries of the lower extremities frequently require exsanguination and the use of pneumatic tourniquets. However, the deflation of the tourniquet is accompanied by predominant metabolic changes such as an increase in PaCO2. Prior studies have reported the existence of a correlation between tourniquet deflation and an increase in intracranial pressure in patients undergoing surgery under general anesthesia. However, there is a dearth of literature demonstrating such relationships among patients undergoing surgery under subarachnoid block in the Indian setting. The present research was conducted to study the variations in intracranial pressure after the deflation of the tourniquet by measuring the optic nerve sheath diameter (ONSD) using ultrasound among patients undergoing orthopedic surgery of the lower limb under spinal anesthesia at a tertiary care hospital in eastern India. Methodology After obtaining clearance from the Institutional Ethics Committee, this prospective observational study was conducted among 45 patients undergoing orthopedic surgeries of the lower limb using a pneumatic tourniquet. Changes in intracranial pressure following tourniquet deflation were recorded by measuring ONSD by ultrasound in these patients. Heart rate (HR), mean arterial pressure (MAP), SpO2, EtCO2, and ONSD were noted 15 minutes before administration of subarachnoid block (T0), just before tourniquet deflation (T1) and at 5, 10, and 15 minutes after tourniquet deflation (T5, T10, and T15, respectively). Results The ONSD varied significantly at each point of observation (p < 0.05). The ONSDs at 5 and 10 minutes after the deflation of the tourniquet were significantly greater than that at T0 (p = 0.002). EtCO2 showed a significant increase compared to baseline values at every point of observation intraoperatively whereas MAP showed a significant decrease (p < 0.05). For all parameters (ONSD, HR, systolic blood pressure, diastolic blood pressure, MAP, and EtCO2), the most significant change in observation was noted at T10, i.e., 10 minutes after the deflation of the tourniquet. Conclusions The significant finding in this study was that the ONSD measurements recorded by ultrasound were increased after the deflation of the tourniquet and that this change can be attributed to an increase in EtCO2. However, the results obtained cannot be validated outside the present research owing to the observational nature of the study and limited sample size. Thus, it is difficult to arrive at a definitive conclusion. Further large-scale multicentric studies may be needed to substantiate the findings of this study.
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Affiliation(s)
| | - Pratap Rudra Mahanty
- Department of Anaesthesiology, Tata Main Hospital, Jamshedpur, IND
- Department of Anaesthesiology, Manipal Tata Medical College, Jamshedpur, IND
| | - Seelora Sahu
- Department of Anaesthesiology, Tata Main Hospital, Jamshedpur, IND
- Department of Anaesthesiology, Manipal Tata Medical College, Jamshedpur, IND
| | - Prashant Sharma
- Department of Anaesthesiology, Tata Main Hospital, Jamshedpur, IND
- Department of Anaesthesiology, Manipal Tata Medical College, Jamshedpur, IND
| | - Deb Sanjay Nag
- Department of Anaesthesiology, Tata Main Hospital, Jamshedpur, IND
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Albaker AB, Almogbil I, Alkheraiji AF, Alshahrani AH, Alharbi SK, AlSwaji GF, Alotaibi RM, Alrashidi A. Tourniquet Practice Among Orthopaedic Surgeons in Saudi Arabia. Cureus 2023; 15:e45828. [PMID: 37876395 PMCID: PMC10591230 DOI: 10.7759/cureus.45828] [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: 06/07/2023] [Accepted: 09/23/2023] [Indexed: 10/26/2023] Open
Abstract
Introduction This study aimed to evaluate the knowledge of tourniquet use among orthopedic surgeons in Saudi Arabia and assess the practical aspects of their use of tourniquets and the complications they have experienced in their practices. Materials and methods This cross-sectional study was conducted from December 2022 to February 2023. An online questionnaire was distributed among orthopedic surgeons and trainees in Saudi Arabia, and the surgeons' knowledge of tourniquet use was assessed using 17 questions. To investigate tourniquet usage, the participants were divided into three groups: orthopedic residents, specialists, and consultants. An upper limb cuff pressure (CP) of 200 mmHg and a lower limb CP of 250 mmHg were chosen as the cut-off values, and the doctors' choices were compared against literature recommendations using these measures. Result A total of 205 participants filled out the questionnaires; 130 residents, 15 consultants, and 60 specialists, with more males (175/205) than females responding. One hundred and twenty-one surgeons placed the cuff on patients by themselves, while 50 (24.3%) surgeons asked nurses for aid; 135 (65.6%) of them work in teaching hospitals, while 50 (24.3%) work in community hospitals. The incidence of post-tourniquet syndrome was unrelated to expertise (p=0.12). Conclusion When applied properly, tourniquets prevent excessive bleeding and keep the operative field clean during limb surgeries. This study aims to inspire the orthopedic community to reconsider long-held practices, especially regarding tourniquet pressure. The addition of ligature safety education to orthopedics training and outlining the settings and procedures for applying pressure should also be considered. The orthopedic community should set CP and process criteria to avoid complications. This study showed the importance of modifying the training of orthopedic residents to raise awareness and prevent unpleasant events from occurring.
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Affiliation(s)
- Abdulmalik B Albaker
- Department of Orthopaedics, College of Medicine, Majmaah University, Al Majma'ah, SAU
| | - Ismail Almogbil
- Department of Surgery, Unaizah College of Medicine and Medical Sciences, Qassim University, Buraydah, SAU
| | | | - Abdullah H Alshahrani
- Department of Orthopaedics, Unaizah College of Medicine and Medical Sciences, Qassim University, Buraydah, SAU
| | - Sultan K Alharbi
- Department of Orthopaedics, College of Medicine, Majmaah University, Al Majma'ah, SAU
| | - Ghada F AlSwaji
- Department of Orthopaedics, College of Medicine, Imam Mohammad Ibn Saud Islamic University, Riyadh, SAU
| | - Razan M Alotaibi
- Department of Surgery, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, SAU
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13
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Nicol R, Lin I, Prasad L. Biceps muscle injury associated with non-invasive automatic blood pressure monitoring. BMJ Case Rep 2023; 16:e256459. [PMID: 37643817 PMCID: PMC10465898 DOI: 10.1136/bcr-2023-256459] [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: 08/31/2023] Open
Abstract
This case describes a young, healthy woman who developed a grade 1 biceps muscle strain after the use of automatic non-invasive blood pressure monitoring during an elective surgical procedure. She was treated conservatively with simple analgesia, physiotherapy and a sling for comfort. Follow-up conducted 1 week later revealed occasional soreness, but she had almost returned to her baseline activity. The patient made a full recovery without any residual symptoms by the end of 6 weeks. This case highlights the importance of careful monitoring to ensure that routine use of blood pressure cuffs does not cause any pressure injuries.
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Affiliation(s)
- Rose Nicol
- Emergency Department, Toowoomba Hospital, Darling Downs Health, Toowoomba, Queensland, Australia
| | - Ian Lin
- Intensive Care Department, Logan Hospital, Metro South Health, Logan, Queensland, Australia
| | - Linga Prasad
- Anaesthetic Department, Toowoomba Hospital, Darling Downs Health, Toowoomba, Queensland, Australia
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Rattanathanya T, Adulkasem N, Wongcharoenwatana J, Ariyawatkul T, Chotigavanichaya C, Eamsobhana P. Perioperative blood loss reduction using a sterile exsanguination tourniquet for orthopedic femoral-related surgeries in children: a randomized controlled study. J Orthop Surg Res 2023; 18:580. [PMID: 37553565 PMCID: PMC10408137 DOI: 10.1186/s13018-023-04046-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/25/2023] [Indexed: 08/10/2023] Open
Abstract
OBJECTIVES The sterile exsanguination tourniquet (SET) could be an alternative for providing bloodless surgeries in orthopedic femoral-related surgeries in pediatric patients where the standard pneumatic tourniquet would not be feasible. This randomized-controlled study aimed to evaluate the efficacy of SET in decreasing total perioperative blood loss and blood transfusion. METHODS We conducted an unplanned interim analysis of data from a randomized-controlled trial. At the time of the analysis, 31 pediatric patients had been randomly assigned to undergo surgery with the SET application (the SET group, 15 patients) and without the SET application (the control group, 16 patients). An intention-to-treat analysis was performed to evaluate the total perioperative blood loss, postoperative blood transfusion, estimated intraoperative blood loss, total drainage volume, postoperative hemoglobin level, and operative time according to the significance level adjusted for multiplicity (p < 0.029). RESULTS There was a borderline statistically significant lower body weight-adjusted TBL in the SET group (SET = 14.1 (7.7, 16.9) ml/kg vs. control 18.3 (14.8, 37.2) ml/kg, p-value = 0.027). The body weight-adjusted transfusion volume was statistically significantly greater in the control group (SET = 0.0 (0.0, 0.0) ml/kg vs. control = 2.1 (0.0, 9.7) ml/kg, p = 0.017). Body weight-adjusted estimated intraoperative blood loss was significantly lower in the SET group (SET = 0.8 (0.2, 3.5) ml/kg vs. control = 5.6 (3.4, 21.5) ml/kg, p < 0.001). In addition, the operative time was lower in the SET group with borderline statistical significance (SET = 105 (85.0, 125.0) vs. control = 130 (101.3, 167.5), p = 0.039). CONCLUSION Utilization of a sterile exsanguination tourniquet (SET) significantly reduced an estimated intraoperative blood loss while preventing the need for blood transfusion after pediatric orthopedic femoral-related surgeries. Trial registration TCTR20220412003.
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Affiliation(s)
- Terapat Rattanathanya
- Department of Orthopedic Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, 2 Prannok Road, Bangkok Noi, Bangkok, 10700, Thailand
| | - Nath Adulkasem
- Department of Orthopedic Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, 2 Prannok Road, Bangkok Noi, Bangkok, 10700, Thailand
| | - Jidapa Wongcharoenwatana
- Department of Orthopedic Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, 2 Prannok Road, Bangkok Noi, Bangkok, 10700, Thailand
| | - Thanase Ariyawatkul
- Department of Orthopedic Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, 2 Prannok Road, Bangkok Noi, Bangkok, 10700, Thailand
| | - Chatupon Chotigavanichaya
- Department of Orthopedic Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, 2 Prannok Road, Bangkok Noi, Bangkok, 10700, Thailand
| | - Perajit Eamsobhana
- Department of Orthopedic Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, 2 Prannok Road, Bangkok Noi, Bangkok, 10700, Thailand.
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Kanchanathepsak T, Pukrittayakamee NC, Woratanarat P, Tawonsawatruk T, Angsanuntsukh C. Limb occlusion pressure versus standard tourniquet inflation pressure in minor hand surgery: a randomized controlled trial. J Orthop Surg Res 2023; 18:539. [PMID: 37507745 PMCID: PMC10386602 DOI: 10.1186/s13018-023-04000-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND In minor hand surgery, tourniquet is typically inflated to 250 mmHg. The pressure may be too high and cause unnecessary adverse effects. Limb occlusion pressure plus safety margin or recommended tourniquet pressure (RTP), has been reported as optimal pressure to provide bloodless field in limb surgeries. This study aimed to compare the RTP with the standard tourniquet pressure of 250 mmHg in minor hand surgery. METHODS A double-blinded randomized control trial was conducted from July to December 2019 and June 2020 to May 2021. Patients were randomly assigned into two groups: RTP and 250 mmHg with 3:1 ratio allocation. The outcomes were measurement of cuff pressure reduction, time to develop of tourniquet pain and discomfort, pain score, discomfort score, motionless and bloodless of operative field determined by the surgeon's satisfaction. RESULTS A total of 112 patients were included, 84 were in RTP and 28 were in 250 mmHg group. Mean of tourniquet pressure was significantly lower in the RTP group (228.3 ± 17.2 mmHg) (P < 0.001). Even though, time to develop pain was not significantly different, the RTP group reported significantly less pain and discomfort, according to the pain score (P = 0.02) and discomfort score (P = 0.017). The RTP group provided better motionless field, while both groups equally created a bloodless field. CONCLUSION The RTP significantly reduced tourniquet related pain and discomfort during minor hand surgeries. It provided better motionless operative field and adequate bloodless field. Therefore, the RTP should be considered as optimal tourniquet pressure for minor hand surgeries. TRIAL REGISTRATION TCTR20210519001 (retrospectively registered). LEVEL OF EVIDENCE I.
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Affiliation(s)
- Thepparat Kanchanathepsak
- Department of Orthopaedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Natsuda Chua Pukrittayakamee
- Department of Orthopaedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Patarawan Woratanarat
- Department of Orthopaedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Tulyapruek Tawonsawatruk
- Department of Orthopaedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand
| | - Chanika Angsanuntsukh
- Department of Orthopaedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok, 10400, Thailand.
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Laloo R, Dewi M, Gwilym BL, Richards OJ, McLain AD, Bosanquet D. Tourniquet use for people with peripheral arterial disease undergoing major lower limb amputations. Cochrane Database Syst Rev 2023; 7:CD015232. [PMID: 37462258 PMCID: PMC10355878 DOI: 10.1002/14651858.cd015232.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
BACKGROUND At least 7000 major lower limb amputations (MLLAs) are performed in the UK each year, 80% of which are due to peripheral arterial disease (PAD). Intraoperative blood loss can have a deleterious effect on patient outcomes, and its replacement with transfused blood is not without risk. Tourniquets can be used in lower limb surgical procedures to provide a bloodless surgical field, minimise intraoperative blood loss, and reduce perioperative blood transfusion requirements. Although their safety has been demonstrated in certain orthopaedic operations, their use among people with PAD undergoing MLLA remains controversial. Many clinicians are concerned about tourniquets potentially compromising perfusion of the stump and thereby impacting wound healing through direct tissue injury, damage to the arterial supply of the wound, or both. OBJECTIVES To assess the safety and effectiveness of tourniquet use in people undergoing MLLA for complications of PAD, specifically with regard to intraoperative blood loss, change in haemoglobin levels, transfusion rates, wound healing, need for revision surgery, and postoperative complications including mortality. SEARCH METHODS We searched the Cochrane Vascular Specialised Register, CENTRAL, MEDLINE, Embase, and CINAHL databases and World Health Organization International Clinical Trials Registry Platform and ClinicalTrials.gov trials registers from inception to 17 May 2022. SELECTION CRITERIA We included randomised controlled trials (RCTs) comparing tourniquet use to no tourniquet use among people with PAD undergoing MLLA. DATA COLLECTION AND ANALYSIS We used standard Cochrane methods. Primary outcomes were intraoperative blood loss, fall in haemoglobin levels, and perioperative blood transfusion requirement. Secondary outcomes were primary wound-healing rates, stump revision rates, other postoperative complications defined as per Clavien-Dindo classification, and postoperative mortality at 30 days and at maximal follow-up. We used GRADE to assess the certainty of evidence for each outcome. MAIN RESULTS One RCT met our inclusion criteria, which was a prospective randomised blinded controlled trial conducted in Sheffield, UK in 2006. In total 64 participants undergoing transtibial amputation for non-reconstructable PAD were randomised to either tourniquet or no tourniquet to assess for intraoperative blood loss, fall in haemoglobin, transfusion requirement, wound healing, stump breakdown and revision. Ten participants were excluded postrandomisation (five from the tourniquet group and five from the no tourniquet group). The reported median volume of intraoperative blood loss was significantly less in the tourniquet group (255 mL (interquartile range (IQR) 150 to 572.5 mL))) compared to the control group (550 mL (IQR 255 to 1050 mL)) (P = 0.014). There was a significantly lower median drop in haemoglobin concentration in the tourniquet group (1.0 g/dL (IQR 0.6 to 2.4 g/dL)) compared to the control group (1.8 g/dL (IRQ 0 to 1.2 g/dL)) (P = 0.035). There was a significantly lower perioperative blood transfusion requirement in the tourniquet group (8 participants, 32%) compared to the control group (14 participants, 48%) (P = 0.047). There were no clear differences in wound breakdown, stump revision, primary wound healing at six weeks, postoperative complications (myocardial infarction, cardiac arrhythmias, pulmonary oedema), and death between groups. We assessed the one included study as at low risk of bias for sequence generation and blinding of outcome assessors; high risk of bias for incomplete outcome data and selective outcome reporting; and unclear risk of bias for allocation concealment, blinding of participants and personnel, and other sources of bias. We assessed the certainty of the evidence as low or very low due to risk of bias, small sample size, and the study being insufficiently powered for most outcomes. AUTHORS' CONCLUSIONS This review identified only one small historical RCT evaluating tourniquet use in MLLA. Tourniquets appeared to reduce intraoperative blood loss, drop in haemoglobin, and blood transfusion requirements following transtibial amputations for people with PAD. However, it is unclear whether tourniquets affect wound healing, stump revision rates, postoperative complications, or mortality. High-certainty evidence is required to inform clinical decision-making for the use of tourniquets in these patients.
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Affiliation(s)
- Ryan Laloo
- Leeds Vascular Institute, Leeds General Infirmary, Leeds, UK
| | - Madlen Dewi
- South East Wales Regional Vascular Network, Royal Gwent Hospital, Wales, UK
| | - Brenig L Gwilym
- South East Wales Regional Vascular Network, Royal Gwent Hospital, Wales, UK
| | | | - Alexander D McLain
- South East Wales Regional Vascular Network, Royal Gwent Hospital, Wales, UK
| | - Dave Bosanquet
- South East Wales Regional Vascular Network, Royal Gwent Hospital, Wales, UK
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Xu F, Wang X, Li Y, Gao F, Yin C, Yu J, Li W, Zhu L, Wang Q. Combined femoral artery block and femoral nerve block reduces thigh tourniquet-induced hypertension. J Clin Anesth 2023; 85:111039. [PMID: 36549034 DOI: 10.1016/j.jclinane.2022.111039] [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: 09/19/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022]
Abstract
STUDY OBJECTIVE Tourniquet hypertension (TH) is thought to be caused by sympathetically mediated C-fibers in the femoral epicardium following prolonged intraoperative inflation of the tourniquet, and we hypothesized that blocking the femoral artery at the same time as a conventional femoral nerve block would reduce the incidence of TH. DESIGN A prospective, double-blind, randomized, controlled trial. SETTING Operating room and hospital ward in the Third Hospital of Hebei Medical University. PATIENTS A total of 72 patients receiving high tibial osteotomy under general anesthesia were recruited from June 2022 to September 2022. INTERVENTIONS Patients were randomly assigned to receive either a classical femoral nerve block (CFNB) or a modified femoral nerve block (MFNB). Patients in the CFNB group received a 30 mL of 0.5% ropivacaine femoral nerve block and patients in the MFNB group received a 20 mL of 0.5% ropivacaine femoral nerve block combined with a 10 mL of 0.5% ropivacaine femoral artery block. MEASUREMENTS The primary outcome assessed was the incidence of TH. Data on intraoperative esmolol dosage, analgesic effect, complications and hemodynamics during surgery were also recorded. MAIN RESULTS Incidence of TH was significantly higher in the CFNB group compared with the MFNB group (71.88% vs 31.25%, P = 0.002). The systolic blood pressure in the CFNB group was significantly higher than that in the MFNB group at 45, 60, 75 and 90 min after tourniquet inflation (P = 0.029, P = 0.020, P = 0.009, P = 0.007). There was also a significant increase in intraoperative esmolol dosage in the CFNB group (65.63 ± 44.15 vs 22.19 ± 33.74, P < 0.001). Postoperative pain scores and patient satisfaction were not statistically significant between the two groups. CONCLUSIONS The present study demonstrated that modified femoral nerve block reduced intraoperative esmolol dosage and the incidence of TH.
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Affiliation(s)
- Fang Xu
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, NO.139, Ziqiang Road, Shijiazhuang, Hebei Province, China
| | - Xupeng Wang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, NO.139, Ziqiang Road, Shijiazhuang, Hebei Province, China
| | - Yanan Li
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, NO.139, Ziqiang Road, Shijiazhuang, Hebei Province, China
| | - Fang Gao
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, NO.139, Ziqiang Road, Shijiazhuang, Hebei Province, China
| | - Chunping Yin
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, NO.139, Ziqiang Road, Shijiazhuang, Hebei Province, China
| | - Jiaxu Yu
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, NO.139, Ziqiang Road, Shijiazhuang, Hebei Province, China
| | - Wei Li
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, NO.139, Ziqiang Road, Shijiazhuang, Hebei Province, China
| | - Lian Zhu
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Qiujun Wang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, NO.139, Ziqiang Road, Shijiazhuang, Hebei Province, China.
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18
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Taso M, Aramendía-Vidaurreta V, Englund EK, Francis S, Franklin S, Madhuranthakam AJ, Martirosian P, Nayak KS, Qin Q, Shao X, Thomas DL, Zun Z, Fernández-Seara MA. Update on state-of-the-art for arterial spin labeling (ASL) human perfusion imaging outside of the brain. Magn Reson Med 2023; 89:1754-1776. [PMID: 36747380 DOI: 10.1002/mrm.29609] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 01/09/2023] [Accepted: 01/16/2023] [Indexed: 02/08/2023]
Abstract
This review article provides an overview of developments for arterial spin labeling (ASL) perfusion imaging in the body (i.e., outside of the brain). It is part of a series of review/recommendation papers from the International Society for Magnetic Resonance in Medicine (ISMRM) Perfusion Study Group. In this review, we focus on specific challenges and developments tailored for ASL in a variety of body locations. After presenting common challenges, organ-specific reviews of challenges and developments are presented, including kidneys, lungs, heart (myocardium), placenta, eye (retina), liver, pancreas, and muscle, which are regions that have seen the most developments outside of the brain. Summaries and recommendations of acquisition parameters (when appropriate) are provided for each organ. We then explore the possibilities for wider adoption of body ASL based on large standardization efforts, as well as the potential opportunities based on recent advances in high/low-field systems and machine-learning. This review seeks to provide an overview of the current state-of-the-art of ASL for applications in the body, highlighting ongoing challenges and solutions that aim to enable more widespread use of the technique in clinical practice.
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Affiliation(s)
- Manuel Taso
- Division of MRI Research, Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA
| | | | - Erin K Englund
- Department of Radiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Susan Francis
- Sir Peter Mansfield Imaging Center, University of Nottingham, Nottingham, UK
| | - Suzanne Franklin
- C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
- Center for Image Sciences, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Ananth J Madhuranthakam
- Department of Radiology, Advanced Imaging Research Center, and Biomedical Engineering, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Petros Martirosian
- Section on Experimental Radiology, Department of Radiology, University Hospital of Tuebingen, Tuebingen, Germany
| | - Krishna S Nayak
- Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles, California, USA
| | - Qin Qin
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, Maryland, USA
| | - Xingfeng Shao
- Laboratory of FMRI Technology (LOFT), Mark & Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - David L Thomas
- Department of Brain Repair and Rehabilitation, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Zungho Zun
- Department of Radiology, Weill Cornell Medicine, New York, New York, USA
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Seyed Siamdoust SA, Zaman B, Noorizad S, Alimian M, Barekati M. Comparison of the Effect of Intercostobrachial Nerve Block with and Without Ultrasound Guidance on Tourniquet Pain After Axillary Block of Brachial Plexus: A Randomized Clinical Trial. Anesth Pain Med 2023; 13:e134819. [PMID: 37601964 PMCID: PMC10439685 DOI: 10.5812/aapm-134819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 08/22/2023] Open
Abstract
Background A tourniquet is used to control bleeding in the surgical field. Because part of the inner arm is innervated by the intercostobrachial nerve (ICBN), a tourniquet can cause intolerable pain. Objectives The present study aimed to compare the effect of ICBN block with and without ultrasound (US) guidance on tourniquet pain after axillary block. Methods This study was performed on 60 patients who were candidates for surgery. The patients were divided into 3 groups: the control group (n = 22), the traditional ICBN (TICBN) blockade group (n = 19), and the US-guided ICBN blockade group (n = 19). After the intervention, the duration of the onset and intensity of pain was recorded for all patients according to the Numeric Rating Scale (NRS). Data analysis was performed using SPSS. Results No significant differences were observed in demographic variables between the 3 groups (P > 0.05). The pain intensity in the TICBN blockade (P = 0.001) and US-guided ICBN blockade (P = 0.001) groups was significantly less than in the control group. The mean duration of pain onset was significantly higher in the TICBN blockade (P = 0.021) and US-guided ICBN blockade (P = 0.013) groups than in the control group. No significant difference was observed in the mean of pain intensity (P = 0.48) and the mean duration of pain onset (P = 0.44) between the US-guided ICBN blockade and TICBN blockade groups. Conclusions The pain caused by a tourniquet can be managed by ICBN block during hand and forearm surgery. It is recommended to use US guidance for more success and safety.
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Affiliation(s)
- Seyed Alireza Seyed Siamdoust
- Department of Anesthesiology and Pain Medicine, Pain Research Center, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Behrooz Zaman
- Department of Anesthesiology and Pain Medicine, Pain Research Center, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Samad Noorizad
- Department of Anesthesiology and Pain Medicine, Pain Research Center, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahzad Alimian
- Department of Anesthesiology and Pain Medicine, Pain Research Center, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mona Barekati
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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20
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Tan JHI, Mat Jais IS, Wong KPL, Lee NKL, Wong YR, Chia DSY, Chew EM. The right turn around: Penrose tourniquet application in paediatrics. Injury 2023; 54:910-916. [PMID: 36635103 DOI: 10.1016/j.injury.2022.12.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 12/27/2022] [Accepted: 12/31/2022] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Commercially available tourniquets are ill-suited for paediatric patients with limb circumferences smaller than the required mechanism, forcing surgeons to improvise. This study aimed to quantify pressures exerted by the Penrose tourniquet when applied on a phantom model and evaluate the intra-/inter-rater reproducibility of the technique previously proposed. METHODS Eight calibrated pressure sensors were distributed evenly along the inner and outer circumference of a silicon-based model. A 30cm-by-3.2 cm ARGYLE Penrose drain, 4-by-4 gauze, marker and ruler were used. The optimal interval for arterial occlusion was determined to be 70% of limb circumference. The tourniquet was secured using two half-knots formed by gauze. RESULTS Two-turns of the tourniquet about the model generated mean pressures (SD) of 209.43 (SD:35.98 mmHg) (95%CI: 195.85-224.00 mmHg) (outer-sensor) and 246.32 (SD:61.92 mmHg) (95%CI: 221.02-273.49 mmHg) (inner-sensor). Three-turns generated mean pressures of 302.07 (SD:23.98 mmHg) (95%CI: 292.29-312.53 mmHg) (outer-sensor) and 314.44 (SD:56.70 mmHg) (95%CI: 291.25-338.25 mmHg) (inner-sensor). CONCLUSION The Penrose tourniquet has clinical utility, particularly for patients where commercially available tourniquets are not suitable. Current application techniques generate inconsistent pressures. Using the existing model, further refinement can be done to improve the consistency and safety of the application. We recommend using intervals of slightly more than 70% of limb circumference and only two turns of the Penrose tourniquet during application. LEVEL OF EVIDENCE V.
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Affiliation(s)
- Joelle Hwee Inn Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | | | - Nicole Kim Luan Lee
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Biomechanics Laboratory, Singapore General Hospital, Singapore; Department of Orthopaedics Surgery, KK Women's and Children's Hospital, Singapore; Division of Surgery, KK Women's and Children's HospitalDivision of Surgery, KK Women's and Children's Hospital
| | - Yoke-Rung Wong
- Biomechanics Laboratory, Singapore General Hospital, Singapore
| | - Dawn Sinn Yii Chia
- Department of Orthopaedics Surgery, KK Women's and Children's Hospital, Singapore
| | - Ee Ming Chew
- Department of Orthopaedics Surgery, KK Women's and Children's Hospital, Singapore
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21
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Rolnick N, Kimbrell K, de Queiros V. Beneath the cuff: Often overlooked and under-reported blood flow restriction device features and their potential impact on practice-A review of the current state of the research. Front Physiol 2023; 14:1089065. [PMID: 37064884 PMCID: PMC10099250 DOI: 10.3389/fphys.2023.1089065] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 03/06/2023] [Indexed: 04/18/2023] Open
Abstract
Training with blood flow restriction (BFR) has been shown to be a useful technique to improve muscle hypertrophy, muscle strength and a host of other physiological benefits in both healthy and clinical populations using low intensities [20%-30% 1-repetition maximum (1RM) or <50% maximum oxygen uptake (VO2max)]. However, as BFR training is gaining popularity in both practice and research, there is a lack of awareness for potentially important design characteristics and features associated with BFR cuff application that may impact the acute and longitudinal responses to training as well as the safety profile of BFR exercise. While cuff width and cuff material have been somewhat addressed in the literature, other cuff design and features have received less attention. This manuscript highlights additional cuff design and features and hypothesizes on their potential to impact the response and safety profile of BFR. Features including the presence of autoregulation during exercise, the type of bladder system used, the shape of the cuff, the set pressure versus the interface pressure, and the bladder length will be addressed as these variables have the potential to alter the responses to BFR training. As more devices enter the marketplace for consumer purchase, investigations specifically looking at their impact is warranted. We propose numerous avenues for future research to help shape the practice of BFR that may ultimately enhance efficacy and safety using a variety of BFR technologies.
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Affiliation(s)
- Nicholas Rolnick
- The Human Performance Mechanic, CUNY Lehman College, NY, United States
- *Correspondence: Nicholas Rolnick,
| | - Kyle Kimbrell
- Owens Recovery Science, San Antonio, TX, United States
| | - Victor de Queiros
- Graduate Program in Health Sciences, Federal University of Rio Grande do Norte (UFRN), NatalRN, Brazil
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22
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Philipopoulos GP, Sharareh B, Ganesan G, Tromberg BJ, O’Sullivan TD, Schwarzkopf R. Characterizing tourniquet induced hemodynamics during total knee arthroplasty using diffuse optical spectroscopy. J Orthop Res 2023; 41:104-114. [PMID: 35289956 PMCID: PMC9475493 DOI: 10.1002/jor.25327] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/03/2022] [Accepted: 03/11/2022] [Indexed: 02/04/2023]
Abstract
Tourniquet use creates a reduced blood surgical field during total knee arthroplasty (TKA), however, prolonged ischemia may cause postoperative tourniquet complications. To understand the effects of tourniquet-induced ischemia, we performed a prospective observational study using quantitative broadband diffuse optical spectroscopy (DOS) to measure tissue hemodynamics and water and lipid concentrations before, during, and after tourniquet placement in subjects undergoing TKA. Data was collected for 6 months and, of the total subjects analyzed (n = 24), 22 were primary TKAs and 2 were revision TKA cases. We specifically investigated tourniquet-induced hemodynamics based upon subject-specific tissue composition and observed a significant relationship between the linear rate of deoxygenation after tourniquet inflation and water/lipid ratio (W/L, p < 0.0001) and baseline somatic tissue oxygen saturation, StO2 (p = 0.05). Subjects with a low W/L ratio exhibited a lower tissue metabolic rate of oxygen consumption, (tMRO2 ) (p = 0.008). Changes in deoxyhemoglobin [HbR] (p = 0.009) and lipid fraction (p = 0.001) were significantly different between high and low W/L subject groups during deoxygenation. No significant differences were observed for hemodynamics during reperfusion and total tourniquet time was neither significantly related to the hemodynamic hyperemic response (p = 0.73) nor the time to max StO2 after tourniquet release (p = 0.57). In conclusion, we demonstrate that DOS is capable of real-time monitoring of tissue hemodynamics distal to the tourniquet during TKA, and that tissue composition should be considered. DOS may help surgeons stratify hemodynamics based upon tissue composition and eventually aid the preoperative risk assessment of vascular occlusions from tourniquet use during TKA.
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Affiliation(s)
- George P. Philipopoulos
- University of California, Irvine, Beckman Laser Institute and Medical Clinic, Laser Microbeam and Medical Program, 1002 Health Sciences Road, Irvine, CA 92617, USA
| | - Behnam Sharareh
- University of Washington, Department of Orthopaedics and Sport Medicine, Seattle, WA, USA
| | - Goutham Ganesan
- University of California, Irvine, Beckman Laser Institute and Medical Clinic, Laser Microbeam and Medical Program, 1002 Health Sciences Road, Irvine, CA 92617, USA
- University of California Irvine, Institute for Clinical and Translation Science, 843 Hewitt Hall, Irvine, USA, 92617
| | - Bruce J. Tromberg
- University of California, Irvine, Beckman Laser Institute and Medical Clinic, Laser Microbeam and Medical Program, 1002 Health Sciences Road, Irvine, CA 92617, USA
| | - Thomas D. O’Sullivan
- University of Notre Dame, Department of Electrical Engineering, 275 Fitzpatrick Hall, Notre Dame, IN 46556 USA
| | - Ran Schwarzkopf
- NYU Langone Orthopaedic Hospital, Hospital for Joint Diseases, 301 East 17 Street, New York, NY 10003 USA
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Ravanbod HR. Analgesic efficacy of local versus proximal nerve blocks after hallux valgus surgery: a systematic review. J Foot Ankle Res 2022; 15:78. [PMID: 36273159 PMCID: PMC9588208 DOI: 10.1186/s13047-022-00581-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 10/10/2022] [Indexed: 11/15/2022] Open
Abstract
Background Hallux valgus (HV) surgery is an orthopaedic procedure that commonly causes mild to moderate postoperative pain. Effective management of this pain has become an important element of modern hallux valgus surgical treatment. A local anaesthetic (LA) with an antinociceptive effect can control this pain. However, relatively few papers have evaluated this strategy in depth. The objective of the current systematic review was to address this demand by comparing the efficacy of proximal and local blocks in controlling postoperative pain following hallux valgus surgery. Main text Ovid-MEDLINE, Cochrane Central, PubMed, Web of Science (WOS), Scopus, and Embase were searched from their inceptions through December 29, 2021. Observational and clinical trial publications in peer-reviewed English-language journals with a sample size of at least 20 were included. The trials involved adults over 18 who could describe their discomfort and had a bunionectomy. The included studies were evaluated using the Cochrane risk of bias 2 method. Descriptive analysis synthesised the results. Among the 439 articles identified, five studies compromising 459 participants were included. Ankle blocks were superior to control in two studies (P = 0.001, P < 0.001) and superior to local blocks in one study (P < 0.001). Additionally, one study showed that popliteal and ankle blocks administered with lidocaine or levobupivacaine were equivalent (P = 0.123 and P = 0.055, respectively). However, one of these five included studies indicated that ankle blocks were not effective (P = 0.123) in reducing postoperative pain. Conclusions The key findings presented herein suggest that regional blocks effectively reduce postoperative pain and that an ankle block has more supportive evidence for its effectiveness. However, an adequate assessment of the effectiveness of various administrative routes was challenging due to the lack of reliable evidence. This needs to be addressed in future studies. Trial registration PROSPERO registration: CRD42022307974. Supplementary Information The online version contains supplementary material available at 10.1186/s13047-022-00581-0.
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Affiliation(s)
- Hamid Reza Ravanbod
- Division of Podiatric Medicine and Surgery, University Western Australia, Park Avenue Building, Crawley Ave, WA, 6009, Crawley, Australia.
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The Prevention of Ischemia-Reperfusion Injury in Elderly Rats after Lower Limb Tourniquet Use. Antioxidants (Basel) 2022; 11:antiox11101936. [PMID: 36290659 PMCID: PMC9598579 DOI: 10.3390/antiox11101936] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/21/2022] [Accepted: 09/26/2022] [Indexed: 11/29/2022] Open
Abstract
Background: Lower limb ischemia-reperfusion injury (IRI-LL) is a common major complication of orthopedic surgery, especially in elderly patients. It has previously been demonstrated that folinic acid (FA) reduced IRI-LL damage in 3−4-month-old rats. This current work analyses the effect of FA in the prevention of IRI-LL in elderly animals. Methods: Forty-two 18-month-old male WAG/RijHsd rats were subjected to 3 h of ischemia. Eighteen animals received FA (2.5 mg/kg, ip) 20 min before the end of the ischemia period, while the other half received the same volume of saline solution. The animals were sacrificed after 3 h, 24 h, and 14 days of reperfusion for biochemical (tissue damage markers and electrolytes), histopathological studies of the gastrocnemius muscle and the daily assessment of the limb function by the Rota Rod test, respectively. Results: The administration of FA prior to the end of the ischemia period reduced the increase in LDH and CK observed in non-treated animals by 30−40% (p < 0.0001). When the histological sections were analyzed, FA was found to have reduced the number of damaged muscle fibers per field by 20% (60 ± 17.1 vs. 80.7 ± 16.4, p < 0.0001). The functional test revealed that FA also led to an improvement in the muscle function, assessed by the length of time that the animals kept running on the rod, compared to untreated animals. Conclusions: The administration of FA, prior to the end of the ischemic period, decreases the damage induced by IRI-LL, also achieving a faster recovery of mobility.
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Sammut K, Gatt R, Chircop K. Fat Necrosis Following Application of a Tourniquet During Total Knee Arthroplasty. Arthroplast Today 2022; 16:207-210. [PMID: 35874148 PMCID: PMC9304645 DOI: 10.1016/j.artd.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/03/2022] [Accepted: 06/04/2022] [Indexed: 10/30/2022] Open
Abstract
A 60-year-old female underwent a right total knee arthroplasty but developed postoperative pain, swelling, and decreased knee range of motion. An ultrasound scan showed findings suggestive of fat necrosis at the site of previous tourniquet application. Following regular reviews, intensive physiotherapy, and analgesia, symptoms only started to resolve 5 months following the primary surgery. Fat necrosis of the thigh is highly uncommon following the application of tourniquets during total knee arthroplasty. This case was treated successfully without complications using nonoperative measures.
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Kukreja P, Johnson BM, Traylor C, O'Keefe KJ, Naranje S, McKeown J, Paul CA, Bell B. Comparison of the Utilization of Tranexamic Acid and Tourniquet Use in Total Knee Arthroplasty: A Retrospective Case Series. Cureus 2022; 14:e24842. [PMID: 35702459 PMCID: PMC9177231 DOI: 10.7759/cureus.24842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction: Total knee arthroplasty (TKA) carries a high risk for significant blood loss due to bone cuts and extensive soft tissue involvement in the knee region. The use of tranexamic acid (TXA) or a tourniquet are two methods commonly employed to prevent significant blood loss and avoid the need for blood transfusion. TXA has been shown to reduce both intraoperative and postoperative bleeding as well as the probability that a patient will require a blood transfusion. The purpose of this study is to compare the efficacy of TXA and tourniquet use, both alone and in combination, in reducing blood loss during TKA. Methods: Data for this retrospective cohort study were obtained by searching records of patients who underwent TKA at a tertiary care center from January 2019 to October 2020. Data from 526 subjects were available. A chart review was conducted to determine if the patient received TXA only, tourniquet only, or both TXA and tourniquet during the TKA procedure. Primary outcomes for this study including procedure length in minutes, estimated blood loss in cubic centimeters, and total infusion pressor (phenylephrine) administered intraoperatively in milligrams were recorded for the study. Data were summarized using means and standard errors. Statistical methods used for analysis include one-way ANOVA, probability plots, the Shapiro-Wilk test for normality, the Kruskal-Wallis test, and Tukey’s test. Results: Data were available for 526 subjects. 122 subjects received tourniquet only (Tourniquet group), 104 received intravenous (IV) TXA only, 264 received both tourniquet and IV TXA (Tourniquet + TXA), and 36 received neither tourniquet nor TXA (None). The groups did not significantly differ in procedure length (p = 0.140) or infusion pressor total (p > 0.20). The groups did significantly differ in estimated blood loss (p < 0.001). Subjects who did not receive either TXA or tourniquet had significantly more blood loss than the Tourniquet and Tourniquet + TXA groups. Similarly, the TXA group had significantly more blood loss than both the Tourniquet and Tourniquet + TXA groups. Conclusion: This study supports the conclusion that the use of a tourniquet is superior to the use of TXA in reducing intraoperative blood loss during TKA. All groups that underwent TKA using a tourniquet, either alone or in combination with TXA, exhibited significantly lower levels of blood loss compared to the control (no intervention) group.
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Huwae TECJ. Preventing Ischemic-Reperfusion Injury after Tourniquet Application in Fracture using Aloe vera Ethanolic Extract. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.9163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Introduction: A tourniquet is a typical equipment used in the orthopedics surgery to decrease blood loss and create a better operating environment. Ischemic-reperfusion damage, which happens when the tourniquet is deflated, is one of the tourniquet's negative effects. Antioxidants can be used to minimize oxidative stress, which is one strategy to mitigate ischemic-reperfusion injury. Aloe vera, for example, is widely known for its antioxidant and anti-inflammatory properties.
Method: The tibias of male Wistar strain rats (Rattus norvegicus) were fractured in this experiment, and Aloe vera gel was given orally as an antioxidant. A total of 18 rats were utilized in this research, which were separated into 6 groups. Varying amounts of Aloe vera extract were given to the treatment groups: 40 mg/kgBW, 60 mg/kgBW, and 80 mg/kgBW. The tourniquet would be inflated for two hours then deflated after application of the Aloe vera extract. Superoxide dismutase (SOD) and malondialdehyde levels were measured in the tibia (MDA).
Result: Application of tourniquet increased oxidative stress marker in fracture state, marked by reduction of SOD and increase of MDA. After administration of Aloe vera extract, the oxidative stress parameters (SOD and MDA) were reduced significantly.
Conclusion: The result of this study suggests that tourniquet increased oxidative stress marker in fracture state and Aloe vera extract could be used to ameliorate this ischemic-reperfusion injury.
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Redding LE, Elzer EJ, Ortved KF. Effects of regional limb perfusion technique on concentrations of antibiotic achieved at the target site: A meta-analysis. PLoS One 2022; 17:e0265971. [PMID: 35363825 PMCID: PMC8974993 DOI: 10.1371/journal.pone.0265971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/10/2022] [Indexed: 11/28/2022] Open
Abstract
Intravenous regional limb perfusions (RLP) are widely used in equine medicine to treat distal limb infections, including synovial sepsis. RLPs are generally deemed successful if the peak antibiotic concentration (Cmax) in the sampled synovial structure is at least 8–10 times the minimum inhibitory concentration (MIC) for the bacteria of interest. Despite extensive experimentation and widespread clinical use, the optimal technique for performing a successful perfusion remains unclear. The objective of this meta-analysis was to examine the effect of technique on synovial concentrations of antibiotic and to assess under which conditions Cmax:MIC ≥ 10. A literature search including the terms “horse”, “equine”, and “regional limb perfusion” between 1990 and 2021 was performed. Cmax (μg/ml) and measures of dispersion were extracted from studies and Cmax:MIC was calculated for sensitive and resistant bacteria. Variables included in the analysis included synovial structure sampled, antibiotic dose, tourniquet location, tourniquet duration, general anesthesia versus standing sedation, perfusate volume, tourniquet type, and the concurrent use of local analgesia. Mixed effects meta-regression was performed, and variables significantly associated with the outcome on univariable analysis were added to a multivariable meta-regression model in a step-wise manner. Sensitivity analyses were performed to assess the robustness of our findings. Thirty-six studies with 123 arms (permutations of dose, route, location and timing) were included. Cmax:MIC ranged from 1 to 348 for sensitive bacteria and 0.25 to 87 for resistant bacteria, with mean (SD) time to peak concentration (Tmax) of 29.0 (8.8) minutes. Meta-analyses generated summary values (θ) of 42.8 x MIC and 10.7 x MIC for susceptible and resistant bacteria, respectively, though because of high heterogeneity among studies (I2 = 98.8), these summary variables were not considered reliable. Meta-regression showed that the only variables for which there were statistically significant differences in outcome were the type of tourniquet and the concurrent use of local analgesia: perfusions performed with a wide rubber tourniquet and perfusions performed with the addition of local analgesia achieved significantly greater concentrations of antibiotic. The majority of arms achieved Cmax:MIC ≥ 10 for sensitive bacteria but not resistant bacteria. Our results suggest that wide rubber tourniquets and concurrent local analgesia should be strongly considered for use in RLP and that adequate therapeutic concentrations (Cmax:MIC ≥ 10) are often achieved across a variety of techniques for susceptible but not resistant pathogens.
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Affiliation(s)
- Laurel E. Redding
- Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, Pennsylvania
| | - Elizabeth J. Elzer
- Rood and Riddle Equine Hospital, Saratoga Springs, New York, United States of America
| | - Kyla F. Ortved
- Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, Pennsylvania
- * E-mail:
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Efficacy of Preemptive Analgesia on Tourniquet and Postoperative Pain Relief in Open Carpal Tunnel Release: A Prospective Randomized Control Trial. J Hand Surg Am 2022:S0363-5023(22)00056-9. [PMID: 35256225 DOI: 10.1016/j.jhsa.2022.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 11/27/2021] [Accepted: 01/14/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Preemptive analgesia has been used to reduce postsurgery pain and improve patient satisfaction. The effectiveness of multimodal preemptive analgesia in open carpal tunnel release under local anesthetic with a tourniquet is still debated. This study aimed to determine the effectiveness of preemptive analgesia on the postoperative tourniquet site and the surgical site. METHODS A total of 44 patients were randomly assigned to one of 2 groups. An experimental group was given 300 mg of gabapentin, 200 mg of celecoxib, and 500 mg of acetaminophen 2 hours before surgery. Placebos were given to the control group. All surgeries were done under local anesthetic by a specialist hand surgeon. A tourniquet was inflated to the recommended pressure. The outcomes included the immediate postoperative tourniquet site pain scores, surgical site pain scores (at 1, 6, 12, 18, and 24 hours after surgery), and acetaminophen consumption in the first 48 hours. RESULT The immediate postoperative tourniquet site pain score in the experimental group was significantly lower than in the placebo group. Although the surgical site pain score in the experimental group was significantly lower than the placebo group at 1, 6, 12, and 18 hours after surgery, these differences were not clinically significant. In addition, there was no statistically significant difference in surgical site pain score at 24 hours after surgery. The amount of acetaminophen consumed during the first 48 hours after surgery was significantly lower in the experimental group than in the placebo group. CONCLUSION Multimodal preemptive analgesia effectively reduced immediate postoperative pain at the tourniquet site in open carpal tunnel release. It also reduced postoperative acetaminophen consumption. TYPE OF STUDY/LEVEL OF EVIDENCE Therapeutic II.
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Kim HJ, Kim YJ, Kim J, Kim H, Ro YJ, Koh WU. Change in the optic nerve sheath diameter after deflation of a pneumatic tourniquet: a prospective observational study. Sci Rep 2022; 12:521. [PMID: 35017581 PMCID: PMC8752803 DOI: 10.1038/s41598-021-04457-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 12/17/2021] [Indexed: 11/22/2022] Open
Abstract
Applying a pneumatic tourniquet provides surgeons with a bloodless surgical field. However, application of the tourniquet induces various physiological changes. We evaluated the effect of tourniquet deflation on the intracranial pressure by using ultrasonography to measure the optic nerve sheath diameter (ONSD) in patients undergoing lower limb surgery. The ONSD was measured in 20 patients at five time points: after anesthetic induction (T0) and immediately before (T1), immediately after (T2), 5 min after (T3), and 10 min after tourniquet deflation (T4). Hemodynamic and respiratory variables were recorded. The ONSD showed significant differences at each point (P < 0.001). The ONSDs at T2 and T3 were significantly greater than that at T1 (P = 0.0007 and < 0.0001, respectively). The change in the end-tidal carbon dioxide partial pressure (EtCO2) was similar to the change in the ONSD. The change in the ONSD was significantly correlated with the change in the EtCO2 after tourniquet deflation (r = 0.484, P = 0.030). In conclusion, the ONSD, as an indicator of intracranial pressure, increased after tourniquet deflation in patients undergoing lower limb surgery. This was correlated with an increased EtCO2 and arterial carbon dioxide partial pressure.Trial registration: ClinicalTrials.gov (NCT03782077).
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Affiliation(s)
- Ha-Jung Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Yeon Ju Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Jiyoung Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Hyungtae Kim
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Young-Jin Ro
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Won Uk Koh
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea.
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Qian J, Tu H, Zhang D, Barksdale AN, Patel KP, Wadman MC, Li YL. Therapeutic effects of masitinib on abnormal mechanoreception in a mouse model of tourniquet-induced extremity ischemia-reperfusion. Eur J Pharmacol 2021; 911:174549. [PMID: 34619116 DOI: 10.1016/j.ejphar.2021.174549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 09/01/2021] [Accepted: 09/30/2021] [Indexed: 11/18/2022]
Abstract
Tourniquets are widely used to stop extremity hemorrhage, but their use and subsequent release can result in nerve damage and degeneration, leading to neurological deficits. Increasing evidence has suggested a pivotal role of inflammation in nerve damage and abnormal mechanoreception. In this study, we investigated the therapeutic effects of masitinib (Mas), an anti-neuroinflammatory drug, on the mechanoreception of sensory neurons in a mouse model of tourniquet-induced hind paw ischemia-reperfusion (tourniquet/IR). C57BL/6 mice were subjected to 3 h of ischemia by placing a rubber band at the ankle joint and evaluated for subsequent reperfusion injury on day 1, 3, 7, 14, and 28 based on the experiments. Treatment with Mas (28 mg/kg/day, i.p.) began on the day of IR induction and lasted for 1, 3, 7, 14, or 28 days. Tourniquet/IR caused sensory nerve denervation in the skin of paw pads and abolished the hind paw mechanoreception to mechanical stimulation during the first 3 days of reperfusion. Sensory nerves gradually reinnervated in the skin of paw pads and allodynia began to appear on day 7. The maximum reaction occurred on day 14 and was maintained throughout the study period. Treatment with Mas mitigated nerve damage and improved hind paw mechanoreception to mechanical stimulation by decreasing the production of reactive oxygen species (ROS) during the early stages of tourniquet/IR. Mas also alleviated allodynia and decreased inflammatory cytokines (IL-1β and TNFα) in the skin of paw pads from days 7-28. Our data suggest that treatment with Mas significantly ameliorated paw numbness and allodynia in mouse hind paw tourniquet/IR.
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Affiliation(s)
- Junliang Qian
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Huiyin Tu
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Dongze Zhang
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Aaron N Barksdale
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Kaushik P Patel
- Department of Cellular & Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Michael C Wadman
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yu-Long Li
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Department of Cellular & Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, USA.
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Tu H, Zhang D, Qian J, Barksdale AN, Pipinos II, Patel KP, Wadman MC, Li YL. A comparison of acute mouse hindlimb injuries between tourniquet- and femoral artery ligation-induced ischemia-reperfusion. Injury 2021; 52:3217-3226. [PMID: 34544588 DOI: 10.1016/j.injury.2021.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 09/01/2021] [Accepted: 09/03/2021] [Indexed: 02/02/2023]
Abstract
The tourniquet or femoral artery ligation is widely used to stop extremity hemorrhage or create a bloodless operating field in the combat scenario and civilian setting. However, these procedures with subsequent reperfusion also induce ischemia-reperfusion (IR) injuries. To fully evaluate animal models of limb IR injuries, we compared tourniquet- and femoral artery ligation-induced IR injuries in the hindlimb of mice. In C57/BL6 mice, 3 h of unilateral hindlimb ischemia was induced by placement of a rubber band at the hip joint or a surgical ligation of the femoral artery. The tourniquet or femoral artery ligation was then released, allowing for 24 h of reperfusion. Compared to the femoral artery ligation/IR, the tourniquet/IR induced more severe skeletal muscle damage, including muscle necrosis and interruption of muscle fibers. There was no gastrocnemius muscle contraction in tourniquet/IR, while femoral artery ligation/IR markedly weakened gastrocnemius muscle contraction. Motor nerve terminals disappeared, and endplate potentials (EPPs) were undetectable in tourniquet/IR, whereas femoral artery ligation/IR only induced mild impairment of motor nerve terminals and decreased the amplitude of EPPs. Additionally, western blot data showed that proinflammatory cytokine levels (IL-1β and TNF-α) were higher in the tourniquet/IR than that in femoral artery ligation/IR. Moreover, tourniquet/IR caused significant tissue edema and dilation of lymphatic vessels in the hindlimb, compared to femoral artery ligation/IR. The above data demonstrated that tourniquet/IR-induced acute hindlimb injuries are more severe than those induced by femoral artery ligation/IR. This suggests that future investigators should determine which hindlimb IR model (tourniquet/IR or femoral artery ligation/IR) is optimal depending on the purpose of their study.
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Affiliation(s)
- Huiyin Tu
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA
| | - Dongze Zhang
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA
| | - Junliang Qian
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA
| | - Aaron N Barksdale
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA
| | - Iraklis I Pipinos
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Kaushik P Patel
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Michael C Wadman
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA
| | - Yu-Long Li
- Department of Emergency Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA; Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, USA.
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Kim JW, Lee AR, Park ES, Yun MS, Ryu SW, Kim UG, Kang DH, Kim JD. Comparison of bolus administration effects of lidocaine on preventing tourniquet-induced hypertension in patients undergoing general anesthesia: a randomized controlled trial. Anesth Pain Med (Seoul) 2021; 17:35-43. [PMID: 34784460 PMCID: PMC8841261 DOI: 10.17085/apm.21055] [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: 05/27/2021] [Accepted: 08/20/2021] [Indexed: 11/28/2022] Open
Abstract
Background This study assessed the effect of a single bolus administration of lidocaine on the prevention of tourniquet-induced hypertension (TIH) and compared the effect of lidocaine to that of ketamine in patients undergoing general anesthesia. Methods This randomized, controlled, double-blind study included 75 patients who underwent lower limb surgery using a tourniquet. The patients were administered lidocaine (1.5 mg/kg, n = 25), ketamine (0.2 mg/kg, n = 25) or placebo (n = 25). The study drugs were administered intravenously 10 min before tourniquet inflation. Systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) were measured before tourniquet inflation, after tourniquet inflation for 60 min at 10 min intervals, and immediately after tourniquet deflation. The incidence of TIH, defined as an increase of 30% or more in SBP or DBP during tourniquet inflation, was also recorded. Results SBP, DBP, and HR increased significantly over time in the control group compared to those in the lidocaine and ketamine groups for 60 min after tourniquet inflation (P < 0.001, P < 0.001, and P = 0.007, respectively). The incidence of TIH was significantly lower in the lidocaine (n = 4, 16%) and ketamine (n = 3, 12%) group than in the control group (n = 14, 56%) (P = 0.001). Conclusion Single-bolus lidocaine effectively attenuated blood pressure increase due to tourniquet inflation, with an effect comparable to that of bolus ketamine.
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Affiliation(s)
- Ji WooK Kim
- Department of Anesthesiology and Pain Medicine, Kosin University College of Medicine, Busan, Korea
| | - A Ran Lee
- Department of Anesthesiology and Pain Medicine, Ulsan University Hospital, Ulsan, Korea
| | - Eun Sun Park
- Department of Anesthesiology and Pain Medicine, Ulsan University Hospital, Ulsan, Korea
| | - Min Su Yun
- Department of Anesthesiology and Pain Medicine, Kosin University College of Medicine, Busan, Korea
| | - Sung Won Ryu
- Department of Anesthesiology and Pain Medicine, Kosin University College of Medicine, Busan, Korea
| | - Uk Gwan Kim
- Department of Anesthesiology and Pain Medicine, Kosin University College of Medicine, Busan, Korea
| | - Dong Hee Kang
- Department of Anesthesiology and Pain Medicine, Kosin University College of Medicine, Busan, Korea
| | - Ju Deok Kim
- Department of Anesthesiology and Pain Medicine, Kosin University College of Medicine, Busan, Korea
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Erdogan O, Gürkan V, Sönmez C, Erden T, Atasoy S, Yildiz F, İnan B, Adilli A. Can the arterial clamp method be used safely where a tourniquet cannot be used? Cardiovasc J Afr 2021; 32:254-260. [PMID: 34292289 PMCID: PMC8756025 DOI: 10.5830/cvja-2021-023] [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: 12/14/2020] [Accepted: 05/12/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Clamp application is safe and widely used in the visceral organs. This raises the question: why not use clamping in orthopaedic, oncological, fracture and revision surgeries of areas where tourniquets are not suitable. This experimental animal study aimed to compare tourniquet and arterial clamp applications with regard to their histological effects and inflammatory responses on a molecular level, on the artery, vein, nerve and muscle tissue. METHODS Twenty-one rabbits were divided into three groups (group I: proximal femoral artery clamp; group II: proximal thigh tourniquet; and group III: control group). In the clamp group, the common femoral artery was clamped with a microvascular clamp for two hours. In the tourniquet group, a 12-inch cuff was applied to the proximal thigh for two hours at 200 mmHg. The common femoral artery, vein, nerve, rectus femoris and tibialis anterior muscles were excised and analysed in all groups. RESULTS Artery and vein endothelial injuries were found in the clamp and tourniquet groups (relative to the control group, p ≤ 0.001 and p = 0.007, respectively). However, no difference was found between the clamp and tourniquet groups regarding vessel wall injury. CONCLUSIONS We found there were no differences in incidence of vessel, muscle and nerve injury when comparing the tourniquet and clamp applications. For surgical procedures that are unsuited to a tourniquet, arterial clamping can be selected, resulting in close-to-tourniquet vessel injury rates but without tourniquet-related complications.
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Affiliation(s)
- Ozgur Erdogan
- Department of Orthopaedics, Health Sciences University, Haydarpasa Numune Education and Research Hospital, Istanbul, Turkey.
| | - Volkan Gürkan
- Department of Orthopaedics, Faculty of Medicine, Bezmialem University, Istanbul, Turkey
| | - Cavide Sönmez
- Department of Pathology, Faculty of Medicine, Bezmialem University, Istanbul, Turkey
| | - Tunay Erden
- Department of Orthopaedics, Fulya Hospital, Acibadem University, Istanbul, Turkey
| | - Sezen Atasoy
- Division of Genetics, Department of Medical Biology, Istanbul University Cerrahpasa, Istanbul, Turkey
| | - Fatih Yildiz
- Department of Orthopaedics, Faculty of Medicine, Bezmialem University, Istanbul, Turkey
| | - Bekir İnan
- Department of Cardiovascular Surgery, Faculty of Medicine, Bezmialem University, Istanbul, Turkey
| | - Adile Adilli
- Department of Pathology, Faculty of Medicine, Bezmialem University, Istanbul, Turkey
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B H PP, Diskina D, Lin HM, Vulcano E, Lai YH. Use of tranexamic acid does not influence perioperative outcomes in ambulatory foot and ankle surgery-a prospective triple blinded randomized controlled trial. INTERNATIONAL ORTHOPAEDICS 2021; 45:2277-2284. [PMID: 34324042 DOI: 10.1007/s00264-021-05131-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 06/23/2021] [Indexed: 12/23/2022]
Abstract
STUDY OBJECTIVE TXA is an antifibrinolytic medication widely used to reduce perioperative blood loss, but it has been seldom used during foot and ankle surgery. Our study evaluates the impact of TXA use on blood loss, post-operative pain, peri-operative opioid consumption, and wound healing in ambulatory outpatient foot and ankle procedures. DESIGN Prospective, triple-blinded, randomized controlled trial. SETTING Peri-operative environment of a major academic health centre in New York City. PATIENTS A total of 100 participants who were scheduled for ambulatory foot and ankle surgery with a single surgeon. INTERVENTIONS Patients receive either 10 mg/kg TXA (TXA group) or 10 ml/kg of normal saline (placebo group) intravenously prior to skin incision. MEASUREMENTS Primary outcome was intra-operative blood loss. Secondary outcomes were peri-operative opioid consumption and wound complications between post-operative days 14 and 21. MAIN RESULTS We found no difference between TXA and placebo groups in terms of intra-operative blood loss, p value 0.71, 95% CI (63.13-19.80). There was no difference between the two groups in terms of post-operative morphine milliequivalents (MME). The incidence of wound complications was 16.3% in the TXA group compared to 15.7% in the placebo group with OR 1.04, p value 0.93, 95% CI (0.32-2.77). No adverse events associated with TXA were reported. CONCLUSIONS The use of TXA during foot and ankle surgery was not associated with any benefits in perioperative outcomes in our outpatient ambulatory surgical population. Considering potential risks, we do not support the routine use of TXA in this surgical model.
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Affiliation(s)
| | | | - Hung Mo Lin
- Mount Sinai Health System, New York, NY, USA
| | - Ettore Vulcano
- Mount Sinai Medical Center, Columbia University, Miami, FL, USA
| | - Yan H Lai
- Department of Anesthesiology, Mount Sinai Health System, 1000 Tenth Avenue, New York, NY, 10019, USA.
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Khandelwal A, Srivastava A, Nayak SS, Prabhakar S, Sinha S. Transient Neurological Dysfunction and Intracranial Hypertension After Tourniquet Deflation in a Patient With a Head Injury: A Case Report. A A Pract 2021; 15:e01486. [PMID: 34043593 DOI: 10.1213/xaa.0000000000001486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A tourniquet is used during surgery to produce a bloodless surgical field and decrease intraoperative blood loss. Although useful, tourniquets are associated with various physiological alterations both during inflation and deflation phases which may be poorly tolerated in compromised patients. We report a case of transient neurological dysfunction and intracranial hypertension after tourniquet deflation in a 15-year-old patient with a head injury. Intracranial hypertension under general anesthesia was diagnosed based on bradyarrhythmia and elevated ultrasonographic optic nerve sheath diameter as compared to preoperative values.
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Affiliation(s)
- Ankur Khandelwal
- From the Department of Anaesthesiology and Critical Care, Sharda University School of Medical Sciences and Research, Greater Noida, Uttar Pradesh, India
| | - Aarti Srivastava
- From the Department of Anaesthesiology and Critical Care, Sharda University School of Medical Sciences and Research, Greater Noida, Uttar Pradesh, India
| | - Sudhansu Sekhar Nayak
- Department of Neuroanaesthesiology and Critical Care, Neurosciences Centre, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Sameer Prabhakar
- Department of Plastic Surgery, Sharda University School of Medical Sciences and Research, Greater Noida, Uttar Pradesh, India
| | - Shweta Sinha
- From the Department of Anaesthesiology and Critical Care, Sharda University School of Medical Sciences and Research, Greater Noida, Uttar Pradesh, India
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Elbadrawy RE, Aboelela MA. Gradual versus intermittent release of tourniquet in total knee arthroplasty surgery, effects on hemodynamics and acid base parameters: a prospective randomized controlled study. EGYPTIAN JOURNAL OF ANAESTHESIA 2021. [DOI: 10.1080/11101849.2021.1923886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Rania E. Elbadrawy
- Anaesthesia and Surgical Intensive Care, Mansoura University, Al Mansurah, Egypt
| | - Mohamed A. Aboelela
- Anaesthesia and Surgical Intensive Care, Mansoura University, Al Mansurah, Egypt
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Abstract
The use of tourniquets in lower limb trauma surgery to control bleeding and improve the surgical field is a long established practice. In this article, we review the evidence relating to harms and benefits of tourniquet use in lower limb fracture fixation surgery and report the results of a survey on current tourniquet practice among trauma surgeons in the UK.
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Affiliation(s)
- Muhamed M Farhan-Alanie
- Department of Trauma & Orthopaedics, University Hospitals Coventry and Warwickshire NHS Trust, Coventry.,Warwick Clinical Trials Unit, Warwick Medical School, Coventry
| | - Alex J Trompeter
- St George's University Hospital NHS Foundation Trust, St George's University of London, London, UK
| | - Peter D H Wall
- Department of Trauma & Orthopaedics, University Hospitals Coventry and Warwickshire NHS Trust, Coventry.,Warwick Clinical Trials Unit, Warwick Medical School, Coventry
| | - Matt L Costa
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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Hughes L, McEwen J. Investigation of clinically acceptable agreement between two methods of automatic measurement of limb occlusion pressure: a randomised trial. BMC Biomed Eng 2021; 3:8. [PMID: 33964963 PMCID: PMC8105974 DOI: 10.1186/s42490-021-00053-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/20/2021] [Indexed: 01/10/2023] Open
Abstract
Background Development of automatic, pneumatic tourniquet technology and use of personalised tourniquet pressures has improved the safety and accuracy of surgical tourniquet systems. Personalisation of tourniquet pressure requires accurate measurement of limb occlusion pressure (LOP), which can be measured automatically through two different methods. The ‘embedded LOP’ method measures LOP using a dual-purpose tourniquet cuff acting as both patient sensor and pneumatic effector. The ‘distal LOP’ method measures LOP using a distal sensor applied to the patient’s finger or toe of the operating limb, using photoplethysmography to detect volumetric changes in peripheral blood circulation. The distal LOP method has been used clinically for many years; the embedded LOP method was developed recently with several advantages over the distal LOP method. While both methods have clinically acceptable accuracy in comparison to LOP measured using the manual Doppler ultrasound method, these two automatic methods have not been directly compared. The purpose of this study is to investigate if the embedded and distal methods of LOP measurement have clinically acceptable agreement. The differences in pairs of LOP measurement in the upper and lower limbs of 81 healthy individuals were compared using modified Bland and Altman analysis. In surgery, it is common for cuff pressure to deviate from the pressure setpoint due to limb manipulation. Surgical tourniquet systems utilise a ± 15 mmHg pressure alarm window, whereby if the cuff pressure deviates from the pressure setpoint by > 15 mmHg, an audiovisual alarm is triggered. Therefore, if the difference (bias) ± SE, 95% CI of the bias and SD of differences ± SE in LOP measurement between the embedded and distal methods were all within ±15 mmHg, this would demonstrate that the two methods have clinically acceptable agreement. Results LOP measurement using the embedded LOP method was − 0.81 ± 0.75 mmHg (bias ± standard error) lower than the distal LOP method. The 95% confidence interval of the bias was − 2.29 to 0.66 mmHg. The standard deviation of the differences ± standard error was 10.35 ± 0.49 mmHg. These results show that the embedded and distal methods of LOP measurement demonstrate clinically acceptable agreement. Conclusions The findings of this study demonstrate clinically acceptable agreement between the embedded and distal methods of LOP measurement. The findings support the use of the embedded LOP method of automatic LOP measurement using dual-purpose tourniquet cuffs to enable accurate, effective and simple prescription of personalised tourniquet cuff pressures in a clinical setting.
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Affiliation(s)
- Luke Hughes
- Centre for Applied Performance Sciences, Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, London, UK.
| | - James McEwen
- Department of Orthopaedics, Faculty of Medicine, University of British Columbia, Vancouver, Canada
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Farhan-Alanie MM, Dhaif F, Trompeter A, Underwood M, Yeung J, Parsons N, Metcalfe A, Wall PDH. The risks associated with tourniquet use in lower limb trauma surgery: a systematic review and meta-analysis. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2021; 31:967-979. [PMID: 33792771 PMCID: PMC8233247 DOI: 10.1007/s00590-021-02957-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 03/21/2021] [Indexed: 01/21/2023]
Abstract
Purpose Tourniquet use in lower limb fracture surgery may reduce intra-operative bleeding, improve surgical field of view and reduce length of procedure. However, tourniquets may result in pain and the production of harmful metabolites cause complications or affect functional outcomes. This systematic review aimed to compare outcomes following lower limb fracture surgery performed with or without tourniquet. Methods We searched databases for RCTs comparing lower limb fracture surgery performed with versus without tourniquet reporting on outcomes pain, physical function, health-related quality of life, complications, cognitive function, blood loss, length of stay, length of procedure, swelling, time to union, surgical field of view, volume of anaesthetic agent, biochemical markers of inflammation and injury, and electrolyte and acid–base balance. Random-effects meta-analysis was performed. PROSPERO ID CRD42020209310. Results Six RCTs enabled inclusion of 552 procedures. Pooled analysis demonstrated that tourniquet use reduced length of procedure by 6 minutes (95% CI −10.12 to −1.87; p < 0.010). We were unable to exclude increased harms from tourniquet use. Pooled analysis showed post-operative pain score was higher in tourniquet group by 12.88 on 100-point scale (95% CI −1.25–27.02; p = 0.070). Risk differences for wound infection, deep venous thrombosis and re-operation were 0.06 (95% CI −0.00–0.12; p = 0.070), 0.05 (95% CI −0.02–0.11; p = 0.150) and 0.03 (95% CI -0.03–0.09; p = 0.340). Conclusion Tourniquet use was associated with a reduced length of procedure. It is possible that tourniquets also increase incidence of important complications, but the data are too sparse to draw firm conclusions. Methodological weaknesses of the included RCTs prevent any solid conclusions being drawn for outcomes investigated. Further studies are required to address these limitations. Supplementary Information The online version contains supplementary material available at 10.1007/s00590-021-02957-7.
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Affiliation(s)
- Muhamed M Farhan-Alanie
- Academic Clinical Fellow Specialty Trainee in Trauma and Orthopaedic Surgery, Warwick Medical School & University Hospital Coventry & Warwickshire, Coventry, UK.
| | - Fatema Dhaif
- Academic Clinical Fellow Specialty Trainee in Trauma and Orthopaedic Surgery, Warwick Medical School & University Hospital Coventry & Warwickshire, Coventry, UK
| | - Alex Trompeter
- Consultant Orthopaedic Trauma Surgeon, Reader in Orthopaedic Surgery, St George's University Hospital NHS Foundation Trust, St George's University of London, London, UK
| | - Martin Underwood
- Warwick Clinical Trials Unit, University of Warwick, Coventry, CV4 7AL, UK
| | - Joyce Yeung
- Warwick Clinical Trials Unit, University of Warwick, Coventry, CV4 7AL, UK
| | - Nick Parsons
- Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
| | - Andy Metcalfe
- Consultant Orthopaedic Surgeon and Associate Clinical Professor in Trauma and Orthopaedic Surgery, Warwick Medical School & University Hospital Coventry & Warwickshire, Coventry, UK
| | - Peter D H Wall
- Consultant Orthopaedic Surgeon and Associate Clinical Professor in Trauma and Orthopaedic Surgery, Warwick Medical School & University Hospital Coventry & Warwickshire, Coventry, UK
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Comparing Sequential vs Simultaneous Tourniquet Inflation in Bilateral Total Knee Arthroplasty. Arthroplast Today 2021; 8:132-137. [PMID: 33748373 PMCID: PMC7970319 DOI: 10.1016/j.artd.2021.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/25/2021] [Accepted: 02/07/2021] [Indexed: 11/21/2022] Open
Abstract
Background There is little evidence on outcomes of tourniquet use during bilateral total knee arthroplasty (BTKA). Tourniquet use in BTKA effects postoperative outcomes and efficiency inside the operating room. This study evaluates the safety and efficacy of simultaneous tourniquet inflation in BTKA. Materials and Methods A retrospective review was performed on BTKA patients between March 2013 and May 2018. A total of 285 patients were divided into 2 cohorts. Patients in the simultaneous cohort had concomitant elevation of both tourniquets, but the sequential cohort did not. Perioperative variables were collected, and postoperative complications were tracked for a minimum of 90 days. Patients followed a uniform postoperative protocol. Complications were grouped by category to increase statistical power and compared using a noninferiority test. “Clinically noninferior” was defined as a margin ≤5%. Results The simultaneous cohort had significantly (P < .05) higher American Society of Anesthesiologists class and smokers. Tourniquet time, delta hemoglobin, and surgical time were significantly lower. For the complication categories of “Any Thrombotic Event”, “Respiratory”, and “Soft Tissue/Wound”, the difference in occurrence rates was no more than 2.8%, 2.8%, and 5.2% between cohorts, respectively. The “Cardiovascular (non-MI)” group was no more than 9.3% different, that is, authors are 95% confident that 3 of 4 complication categories meet the clinically noninferior threshold. Conclusion The study demonstrates the noninferiority of simultaneous as compared to sequential tourniquet inflation in BTKA. Patients with cardiac history may need sequential inflation or staged TKA. The information presented in the study assists surgeons in safely and efficiently performing BTKA.
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Okamura A, Moraes VYD, Fernandes M, Raduan-Neto J, Belloti JC. WALANT versus intravenous regional anesthesia for carpal tunnel syndrome: a randomized clinical trial. SAO PAULO MED J 2021; 139:576-578. [PMID: 34644765 PMCID: PMC9634845 DOI: 10.1590/1516-3180.2020.0583.r2.0904221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 04/09/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND There are several anesthetic techniques for surgical treatment of carpal tunnel syndrome (CTS). Results from this surgery using the "wide awake local anesthesia no tourniquet" (WALANT) technique have been described. However, there is no conclusive evidence regarding the effectiveness of the WALANT technique, compared with the usual techniques. OBJECTIVE To evaluate the effectiveness of the WALANT technique, compared with intravenous regional anesthesia (IVRA; Bier's block), for surgical treatment of CTS. DESIGN AND SETTING Randomized clinical trial, conducted at Hospital Alvorada Moema and the Discipline of Hand Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil. METHODS Seventy-eight patients were included. The primary outcome was measurement of perioperative pain through a visual analogue scale (VAS). The secondary outcomes were the Boston Questionnaire score, Hospital Anxiety and Depression Scale (HADS) score, need for use of analgesics, operating room times, remission of paresthesia, failures and complications. RESULTS The WALANT technique (n = 40) proved to be superior to IVRA (n = 38), especially for controlling intraoperative pain (0.11 versus 3.7 cm; P < 0.001) and postoperative pain (0.6 versus 3.9 cm; P < 0.001). Patients spent more time in the operating room in the IVRA group (59.5 versus 46 minutes; P < 0.01) and needed to use more analgesics (10.8 versus 5.7 dipyrone tablets; P = 0.02). Five IVRA procedures failed (5 versus 0; P = 0.06). CONCLUSIONS The WALANT technique is more effective than IVRA for CTS surgery.
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Affiliation(s)
- Aldo Okamura
- MD. Doctoral Student and Hand Surgeon, Discipline of Hand and Upper Limb Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil; and Hand Surgeon, Hand Surgery Service, Hospital Alvorada Moema, United Health, São Paulo (SP), Brazil
| | - Vinicius Ynoe de Moraes
- MD, PhD. Hand Surgeon, Discipline of Hand and Upper Limb Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil; and Hand Surgeon, Hand Surgery Service, Hospital Alvorada Moema, United Health, São Paulo (SP), Brazil
| | - Marcela Fernandes
- MD, PhD. Hand Surgeon, Discipline of Hand and Upper Limb Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil; and Hand Surgeon, Hand Surgery Service, Hospital Alvorada Moema, United Health, São Paulo (SP), Brazil
| | - Jorge Raduan-Neto
- MD, PhD. Hand Surgeon, Discipline of Hand and Upper Limb Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil; and Hand Surgeon, Hand Surgery Service, Hospital Alvorada Moema, United Health, São Paulo (SP), Brazil
| | - João Carlos Belloti
- MD, MSc, PhD. Full Professor, Discipline of Hand and Upper Limb Surgery, Universidade Federal de São Paulo (UNIFESP), São Paulo (SP), Brazil; and Full Professor, Hand Surgery Service, Hospital Alvorada Moema, United Health, São Paulo (SP), Brazil
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Busse E, Hickey C, Vasilakos N, Stewart K, O’Brien F, Rivera J, Marrero L, Lacey M, Schroll R, Van Meter K, Sammarco MC. Plasma flow distal to tourniquet placement provides a physiological mechanism for tissue salvage. PLoS One 2020; 15:e0244236. [PMID: 33347516 PMCID: PMC7752148 DOI: 10.1371/journal.pone.0244236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 12/06/2020] [Indexed: 11/23/2022] Open
Abstract
Military literature has demonstrated the utility and safety of tourniquets in preventing mortality for some time, paving the way for increased use of tourniquets in civilian settings, including perioperatively to provide a bloodless surgical field. However, tourniquet use is not without risk and the subsequent effects of tissue ischemia can impede downstream rehabilitative efforts to regenerate and salvage nerve, muscle, tissue and bone in the limb. Limb ischemia studies in both the mouse and pig models have indicated not only that there is residual flow past the tourniquet by means of microcirculation, but also that recovery from tissue ischemia is dependent upon this microcirculation. Here we expand upon these previous studies using portable Near-Infrared Imaging to quantify residual plasma flow distal to the tourniquet in mice, pigs, and humans and leverage this flow to show that plasma can be supersaturated with oxygen to reduce intracellular hypoxia and promote tissue salvage following tourniquet placement. Our findings provide a mechanism of delivery for the application of oxygen, tissue preservation solutions, and anti-microbial agents prior to tourniquet release to improve postoperative recovery. In the current environment of increased tourniquet use, techniques which promote distal tissue preservation and limb salvage rates are crucial.
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Affiliation(s)
- Emily Busse
- Department of Surgery, Tulane School of Medicine, New Orleans, Louisiana, United States of America
| | - Cheryl Hickey
- Department of Emergency Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana, United States of America
| | - Nicole Vasilakos
- Department of Physiology, Tulane School of Medicine, New Orleans, Louisiana, United States of America
| | - Kennon Stewart
- Department of Mathematics, Tulane University, New Orleans, Louisiana, United States of America
| | - Fred O’Brien
- Orthopaedic Surgery Service, Dwight D. Eisenhower Army Medical Center, Fort Gordon, Georgia, United States of America
| | - Jessica Rivera
- Department of Orthopedics, Louisiana State University Health Sciences Center, New Orleans, Louisiana, United States of America
| | - Luis Marrero
- Department of Orthopedics, Louisiana State University Health Sciences Center, New Orleans, Louisiana, United States of America
| | - Michelle Lacey
- Department of Mathematics, Tulane University, New Orleans, Louisiana, United States of America
| | - Rebecca Schroll
- Department of Surgery, Tulane School of Medicine, New Orleans, Louisiana, United States of America
| | - Keith Van Meter
- Department of Emergency Medicine, Louisiana State University Health Sciences Center, New Orleans, Louisiana, United States of America
| | - Mimi C. Sammarco
- Department of Surgery, Tulane School of Medicine, New Orleans, Louisiana, United States of America
- * E-mail:
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Ahmed I, Chawla A, Underwood M, Price AJ, Metcalfe A, Hutchinson C, Warwick J, Seers K, Parsons H, Wall PD. Tourniquet use for knee replacement surgery. Cochrane Database Syst Rev 2020; 12:CD012874. [PMID: 33316105 PMCID: PMC8094224 DOI: 10.1002/14651858.cd012874.pub2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Many surgeons prefer to perform total knee replacement surgery with the aid of a tourniquet. A tourniquet is an occlusive device that restricts distal blood flow to help create a bloodless field during the procedure. A tourniquet may be associated with increased risk of pain and complications. OBJECTIVES To determine the benefits and harms of tourniquet use in knee replacement surgery. SEARCH METHODS We searched MEDLINE, Embase, and Cochrane Central Register of Controlled Trials (CENTRAL) up to 26 March 2020. We searched clinicaltrials.gov, the World Health Organization trials portal, and several international registries and joint registries up to March 2020. SELECTION CRITERIA We included randomised controlled trials (RCTs) comparing knee replacement with use of a tourniquet versus without use of a tourniquet and non-randomised studies with more than 1000 participants. Major outcomes included pain, function, global assessment of success, health-related quality of life, serious adverse events (including venous thromboembolism, infection, re-operation, and mortality), cognitive function, and survival of the implant. Minor outcomes included blood loss, economic outcomes, implant stability, and adverse events. DATA COLLECTION AND ANALYSIS Two review authors screened abstracts and full texts, extracted data, performed risk of bias assessments, and assessed the certainty of the evidence using the GRADE approach. MAIN RESULTS We included 41 RCTs with 2819 participants. Trials included from 20 to 199 participants. Mean age ranged between 58 and 84 years. More than half of the RCTs had unclear risk of selection bias and unclear risk of performance and detection bias due to absence of blinding of participants and surgeons. Major outcomes Pain: at postoperative day 1, pain (on a scale from zero to 10, with higher scores indicating worse pain) was ranked at 4.56 points after surgery without a tourniquet and at 1.25 points (MD) higher (95% CI 0.32 higher to 2.19 higher) with a tourniquet (8 studies; 577 participants), for an absolute difference of 12.5% higher pain scores (95% CI 3.2% higher to 21.9% higher) and a relative difference of 19% higher pain scores (95% CI 3.4% higher to 49% higher) with a tourniquet. Evidence for these findings was of moderate certainty, downgraded due to risk of bias. Knee replacement with a tourniquet probably led to higher postoperative pain scores at day 1, although this difference may or may not be noticeable to patients (based on a minimal clinically important difference (MCID) of 1.0). Function: at 12 months, tourniquet use probably makes little or no difference to function, based on an MCID of 5.3 for Knee Society Score (KSS) and 5.0 for Oxford Knee Score (OKS). Mean function (on a scale from 0 to 100, with higher scores indicating better outcomes) was 90.03 points after surgery without a tourniquet and was 0.29 points worse (95% CI 1.06 worse to 0.48 better) on a 0 to 100 scale, absolute difference was 0.29% worse (1.06% worse to 0.48% better), with a tourniquet (5 studies; 611 participants). This evidence was downgraded to moderate certainty due to risk of bias. Global assessment of success: low-certainty evidence (downgraded due to bias and imprecision) indicates that tourniquet use may have little or no effect on success. At six months, 47 of 50 (or 940 per 1000) reported overall successful treatment after surgery without a tourniquet and 47 of 50 (or 940 per 1000) with a tourniquet (risk ratio (RR) 1.0, 95% CI 0.91 to 1.10) based on one study with 100 participants. Health-related quality of life: at six months, tourniquet may have little or no effect on quality of life. The 12-Item Short Form Survey (SF-12) score (mental component from zero to 100 (100 is best)) was 54.64 after surgery without a tourniquet and 1.53 (MD) better (95% CI 0.85 worse to 3.91 better) with a tourniquet (1 study; 199 participants); absolute difference was 1.53% better (0.85% worse to 3.91% better). Evidence was of low certainty, downgraded due to risk of bias and small number of participants. Serious adverse events: the risk of serious adverse events was probably higher with tourniquet; 26 of 898 (29 per 1000) reported events following surgery without a tourniquet compared to 53 of 901 (59 per 1000) with a tourniquet (RR 1.73, 95% CI 1.10 to 2.73) in 21 studies (1799 participants). Twenty-nine more per 1000 patients (95% CI 3 to 50 more per 1000 patients) had a serious adverse event with a tourniquet. Forty-eight (95% CI 20 to 345) participants would need to have surgery without a tourniquet to avoid one serious adverse event. This evidence was downgraded to moderate certainty due to risk of bias. Cognitive function: one study reported cognitive function as an outcome; however the data were incompletely reported and could not be extracted for analysis. Survival of implant: it is uncertain if tourniquet has an effect on implant survival due to very low certainty evidence (downgraded for bias, and twice due to very low event rates); 2 of 107 (19 per 1000) required revision surgery in the surgery with a tourniquet group compared to 1 of 107 (9 per 1000) without a tourniquet group at up to two years' follow-up (RR 1.44, 95% CI 0.23 to 8.92). This equates to a 0.4% (0.7% lower to 7% more) increased absolute risk in surgery with a tourniquet. AUTHORS' CONCLUSIONS Moderate certainty evidence shows that knee replacement surgery with a tourniquet is probably associated with an increased risk of serious adverse events. Surgery with a tourniquet is also probably associated with higher postoperative pain, although this difference may or may not be noticeable to patients. Surgery with a tourniquet does not appear to confer any clinically meaningful benefit on function, treatment success or quality of life. Further research is required to explore the effects of tourniquet use on cognitive function and implant survival, to identify any additional harms or benefits. If a tourniquet continues to be used in knee replacement surgery, patients should be informed about the potential increased risk of serious adverse events and postoperative pain.
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Affiliation(s)
- Imran Ahmed
- Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
| | - Amit Chawla
- Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
| | - Martin Underwood
- Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
| | - Andrew J Price
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Andrew Metcalfe
- Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
| | | | - Jane Warwick
- Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
| | - Kate Seers
- Warwick Medical School, University of Warwick, Coventry, UK
| | - Helen Parsons
- Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
| | - Peter Dh Wall
- Warwick Clinical Trials Unit, University of Warwick, Coventry, UK
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Impact of Dexmedetomidine on Tourniquet-Induced Systemic Effects in Total Knee Arthroplasty under Spinal Anesthesia: a Prospective Randomized, Double-Blinded Study. BIOMED RESEARCH INTERNATIONAL 2020; 2020:4208597. [PMID: 33083465 PMCID: PMC7559225 DOI: 10.1155/2020/4208597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/05/2020] [Accepted: 09/22/2020] [Indexed: 11/18/2022]
Abstract
Background Clinical studies on the impact of dexmedetomidine on tourniquet-induced systemic effects have been inconsistent. We investigated the impact of dexmedetomidine on tourniquet-induced systemic effects in total knee arthroplasty. Methods Eighty patients were randomly assigned to either control (CON) or dexmedetomidine (DEX) group. The DEX group received an intravenous loading dose of 0.5 μg/kg DEX over 10 minutes, followed by a continuous infusion of 0.5 μg/kg/h from 10 minutes before the start of surgery until completion. The CON group received the same calculated volume of normal saline. Pain outcomes and metabolic and coagulative changes after tourniquet application and after tourniquet release were investigated. Results The frequency of fentanyl administration postoperatively, patient-controlled analgesia (PCA) volume at 24 hours postoperatively, total PCA volume consumed in 48 hours postoperatively, and VAS score for pain at 24 and 48 hours postoperatively were significantly lower in the DEX group than in the CON group. Ten minutes after the tourniquet release, the DEX group showed significantly higher pH and lower lactate level than those in the CON group. Antithrombin III activity and body temperature 10 minutes after tourniquet release were significantly lower in the DEX group than in the CON group. Ca2+, K+, HCO3 -, base excess, and PCO2 levels 10 minutes after tourniquet release were not significantly different between the two groups. Conclusion We showed that DEX attenuated pain and hemodynamic, metabolic, and coagulative effects induced by the tourniquet. However, these metabolic and coagulative changes were within normal limits. Therefore, DEX could be used as an analgesic adjuvant, but should not be considered for routine use to prevent the systemic effects induced by tourniquet use.
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46
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Dabir S, Mosaffa F, Hosseini B, Alimoradi V. Comparison of the Combined Femoral and Lateral Femoral Cutaneous Nerve Block Plus Popliteal Block with Spinal Anesthesia for Thigh Tourniquet Pain During Foot or Ankle Surgery: A Randomized Clinical Trial. Anesth Pain Med 2020; 10:e103674. [PMID: 33134147 PMCID: PMC7539047 DOI: 10.5812/aapm.103674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/20/2020] [Accepted: 07/18/2020] [Indexed: 01/11/2023] Open
Abstract
Background A pneumatic thigh tourniquet is routinely used during lower-extremity orthopedic surgeries to provide a bloodless field. When using peripheral nerve blocks, tourniquet-related thigh pain and discomfort limit their routine use as an anesthetic method. Objectives The aim of the present prospective, randomized study was to compare the efficacy of combined femoral nerve/lateral femoral cutaneous nerve block technique and spinal anesthesia on intraoperative thigh tourniquet pain. Methods We studied 60 American Society of Anesthesiologists physical status I-II patients scheduled for orthopedic surgery on the foot or ankle using a pneumatic thigh tourniquet. They were randomly divided into two equal groups. The peripheral nerve block group received a combined popliteal, femoral, and lateral femoral cutaneous nerve block under ultrasound-guidance. In both groups, the level of sensory blockade was determined by the pinprick test. The block performance time, anesthetic effect time, intraoperative tourniquet pain scores, the amount of fentanyl and ketamine, surgery duration, and patient’s satisfaction were recorded. Results The patients’ characteristics were comparable in the two groups. The mean duration of block performance and anesthetic effect, intraoperative tourniquet pain scores, and the amount of intravenous analgesics in the peripheral nerve block group were significantly greater than those in the spinal anesthesia group. Patient satisfaction was similar in both groups. Conclusions Spinal anesthesia is significantly more effective than the peripheral nerve block method in reducing thigh tourniquet pain. A combined femoral and lateral femoral cutaneous nerve block with popliteal block can improve thigh tourniquet tolerance if supplemented with intravenous analgesics.
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Affiliation(s)
- Shideh Dabir
- Department of Anesthesiology and Critical Care, Tracheal Diseases Research Center, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Faramarz Mosaffa
- Department of Anesthesiology, Anesthesiology Research Center, Akhtar Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Corresponding Author: Department of Anesthesiology, Anesthesiology Research Center, Akhtar Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Behnam Hosseini
- Department of Anesthesiology, Anesthesiology Research Center, Akhtar Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahideh Alimoradi
- Department of Anesthesiology and Critical Care, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Shrestha N, Karki B, Koirala M, Acharya S, Shrestha PS, Acharya SP. Delayed Neurological Recovery After Ultrasound-Guided Brachial Plexus Block: A Case Report [Response to Letter]. Local Reg Anesth 2020; 13:47-48. [PMID: 32606917 PMCID: PMC7305332 DOI: 10.2147/lra.s266326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 06/05/2020] [Indexed: 11/23/2022] Open
Affiliation(s)
- Ninadini Shrestha
- Department of Anaesthesia, Maharajgunj Medical Campus, Institute of Medicine, Maharajgunj, Kathmandu, Nepal
| | - Bipin Karki
- Department of Critical Care Medicine, Om Hospital and Research Center Pvt. Ltd, Chabahil, Kathmandu, Nepal
| | - Megha Koirala
- Department of Anaesthesia, Maharajgunj Medical Campus, Institute of Medicine, Maharajgunj, Kathmandu, Nepal
| | - Santosh Acharya
- Department of Critical Care Medicine, Hospital for Advanced Medicine and Surgery, Dhumbarahi, Kathmandu, Nepal
| | - Pramesh Sunder Shrestha
- Department of Anaesthesia, Maharajgunj Medical Campus, Institute of Medicine, Maharajgunj, Kathmandu, Nepal
| | - Subhash Prasad Acharya
- Department of Anaesthesia, Maharajgunj Medical Campus, Institute of Medicine, Maharajgunj, Kathmandu, Nepal
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Huwae TECJ, Santoso ARB, Kesuma W, Sujuti H, Ratnawati R, Sukmajaya WP, Hidayat M. Reperfusion Interval as a Prevention of Lung Injury Due to Limb Ischemia-Reperfusion After Application of Tourniquet in Murine Experimental Study. Indian J Orthop 2020; 54:704-710. [PMID: 32850036 PMCID: PMC7429627 DOI: 10.1007/s43465-020-00100-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/26/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND Tourniquet use is prevalent in the orthopaedic field to achieve a bloodless operating field, but it poses risks of local and systemic complications, including lung injury. This study aims to examine the effect of tourniquet application on the hindlimb of a rat to its lung. MATERIALS AND METHODS This is an experimental study with 48 male Wistar strain rats as samples. The rats were divided into group A (n = 24), killed directly after fracturization and tourniquet application, and group B (n = 24), killed 14 days post-procedure. Each group was divided into four: group A1/B1 (control group, three hours tourniquet application without reperfusion interval), A2/B2 (5-min reperfusion between 2-h and 1-h tourniquet application), A3/B3 (10-min reperfusion), and A4/B4 (15-min reperfusion). The lung tissue was examined histologically within ten high-power fields (400 × magnification). The severity of lung injury was measured using the Lung Injury Score (LIS). The oxidative damage was measured by determining the malondialdehyde (MDA) level, using the TBARS (thiobarbituric acid reactive substance assay) method. RESULTS There was a dose-dependent decrease of LIS and MDA in groups A and B with increasing reperfusion interval. Fifteen-minute reperfusion interval caused a 54.55% and 45.33% LIS reduction in groups A and B, respectively. All pair-wise group comparisons (p < 0.05) showed significant differences. Five-minute interval reduced the MDA level by 16.56% and 30.13% in groups A and B, respectively. All possible pair-wise comparisons in both groups A and B also showed a significant difference (p < 0.05). CONCLUSIONS Reperfusion interval is a possible clinical approach to mitigate the remote organ damage induced by limb ischemia-reperfusion injury.
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Affiliation(s)
- Thomas Erwin Christian Junus Huwae
- Faculty of Medicine, Universitas Brawijaya, Jl. Veteran, Malang, 65145 Indonesia ,Department of Orthopaedics and Traumatology, Saiful Anwar General Hospital, Malang, Indonesia
| | | | - Wongso Kesuma
- Department of Orthopaedics and Traumatology, Saiful Anwar General Hospital, Malang, Indonesia
| | - Hidayat Sujuti
- Department of Ophthalmology, Saiful Anwar General Hospital, Malang, Indonesia
| | - Retty Ratnawati
- Department of Physiology, Faculty of Medicine, Universitas Brawijaya, Malang, Indonesia
| | | | - Mohammad Hidayat
- Department of Orthopaedics and Traumatology, Saiful Anwar General Hospital, Malang, Indonesia
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Wang T, Osborne N, Rechtenwald J, Kim A, Matusko N, Mayle R, Cohen MS. Improved durable responses regardless of age following cytoreduction and "no-tourniquet" hyperthermic isolated limb chemotherapy for in transit melanoma of the extremity. Am J Surg 2019; 218:1114-1121. [PMID: 31630826 PMCID: PMC6927738 DOI: 10.1016/j.amjsurg.2019.09.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 09/20/2019] [Accepted: 09/26/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND In-transit metastatic melanoma of the extremity is a clinically aggressive disease. For patients with disease confined to the limb, regional chemotherapy remains an effective option. However, no studies thus far have included cytoreduction or perfusion/infusion without using a limb tourniquet as part of the operative procedure. We hypothesize that combining cytoreduction with no-tourniquet HILP/HILI is safe in patients of all ages and results in durable responses. METHODS A retrospective analysis was performed of a prospectively collected database of patients with in-transit malignant melanoma who underwent cytoreduction and HILP/HILI between 2013 and 2017. The primary endpoint was RECIST response at 3-12 months. Secondary endpoints included length of hospital stay, adverse effects, overall survival, and time to recurrence. A subgroup analysis was performed in patients ≥80 years old. RESULTS HILP patients had significantly higher disease burdens than HILI patients. Complete response rates for HILP and HILI were 95% and 75%, respectively at 3 months and 47% and 50%, respectively at 1 year (50% for patients >80) with 100% 1-year survival rates for both HILP and HILI patients. Three-year survival rates were 57% (HILP), 52% (HILI) and 68% (patients >80 years old). The average length of stay for all patients was 3.6 ± 1.4 days. CONCLUSION Combining cytoreduction with no-tourniquet HILP/HILI for in-transit metastatic melanoma of the extremity resulted in 100% survival regardless of age at 1 year and 68% 3-year survival in patients over 80 without any increase in adverse events.
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Affiliation(s)
- Ton Wang
- University of Michigan, Department of Surgery, Ann Arbor, MI, USA
| | - Nicholas Osborne
- University of Michigan, Department of Surgery, Ann Arbor, MI, USA
| | - John Rechtenwald
- University of Wisconsin, Department of Surgery, Madison, WI, USA
| | - Alex Kim
- University of Michigan, Department of Surgery, Ann Arbor, MI, USA
| | - Niki Matusko
- University of Michigan, Department of Surgery, Ann Arbor, MI, USA
| | - Rita Mayle
- University of Michigan, Department of Surgery, Ann Arbor, MI, USA
| | - Mark S Cohen
- University of Michigan, Department of Surgery, Ann Arbor, MI, USA; University of Michigan, Department of Pharmacology, Ann Arbor, MI, USA.
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Jones CD, Addison PR, Lam WL, Davidson DM. Compartment Syndrome of the Forearm Following Dermofasciectomy-A Rare and Devastating Complication. J Hand Surg Asian Pac Vol 2019; 24:491-493. [PMID: 31690199 DOI: 10.1142/s2424835519720202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We present a case of compartment syndrome of the forearm following harvesting of a full thickness skin graft from the medial forearm for a double digit dermofasciectomy. The patient underwent forearm fasciectomy followed by multiple surgical debridements. At 18 months, despite intensive physiotherapy, the patient was left with a very significant residual functional deficit. This case highlights a previously undescribed but devastating complication of closure of a forearm skin graft donor site.
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Affiliation(s)
| | - Patrick R Addison
- Edinburgh Department of Plastic Surgery, St John's Hospital, Livingston, UK
| | - Wee Leon Lam
- Edinburgh Department of Plastic Surgery, St John's Hospital, Livingston, UK
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