The Experts below are selected from a list of 198 Experts worldwide ranked by ideXlab platform
Jae-hwang Song - One of the best experts on this subject based on the ideXlab platform.
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Can Ultrasound-Guided Nerve Block be a useful method of anesthesia for arthroscopic knee surgery?
Knee Surgery Sports Traumatology Arthroscopy, 2015Co-Authors: Chan Kang, Jae-hwang SongAbstract:Purpose This study was performed to compare general anesthesia, spinal anesthesia, and ultrasound (US)-guided Nerve Block for knee arthroscopic surgery. Also, whether US-guided Nerve Block is a useful method of anesthesia for arthroscopic knee surgery was investigated. Methods In this prospective, randomized study, 400 patients who underwent knee arthroscopy surgery between February 2011 and September 2012 were allocated to one of three groups: spinal anesthesia ( n = 100), general anesthesia ( n = 100), or US-guided Nerve Block ( n = 200). All patients completed a questionnaire with three questions 6 months after surgery. For the Nerve Block group, the procedure duration, interval between the procedure and onset of the anesthetic effect, the point of loss of the anesthetic effect, intraoperative, postoperative visual analog scale (VAS) pain score, and discomfort during surgery were assessed. Results There was no patient in which the anesthetic was changed to another method during the operation. VAS pain score of postoperative 1 h was significantly different between the Nerve Block (1.4 ± 1.7), spinal anesthesia (1.5 ± 1.1), and general anesthesia groups (6.2 ± 5.1) ( P
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Can Ultrasound-Guided Nerve Block be a useful method of anesthesia for arthroscopic knee surgery?
Knee Surgery Sports Traumatology Arthroscopy, 2014Co-Authors: Chan Kang, Jae-hwang SongAbstract:Purpose This study was performed to compare general anesthesia, spinal anesthesia, and ultrasound (US)-guided Nerve Block for knee arthroscopic surgery. Also, whether US-guided Nerve Block is a useful method of anesthesia for arthroscopic knee surgery was investigated.
Chan Kang - One of the best experts on this subject based on the ideXlab platform.
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Can Ultrasound-Guided Nerve Block be a useful method of anesthesia for arthroscopic knee surgery?
Knee Surgery Sports Traumatology Arthroscopy, 2015Co-Authors: Chan Kang, Jae-hwang SongAbstract:Purpose This study was performed to compare general anesthesia, spinal anesthesia, and ultrasound (US)-guided Nerve Block for knee arthroscopic surgery. Also, whether US-guided Nerve Block is a useful method of anesthesia for arthroscopic knee surgery was investigated. Methods In this prospective, randomized study, 400 patients who underwent knee arthroscopy surgery between February 2011 and September 2012 were allocated to one of three groups: spinal anesthesia ( n = 100), general anesthesia ( n = 100), or US-guided Nerve Block ( n = 200). All patients completed a questionnaire with three questions 6 months after surgery. For the Nerve Block group, the procedure duration, interval between the procedure and onset of the anesthetic effect, the point of loss of the anesthetic effect, intraoperative, postoperative visual analog scale (VAS) pain score, and discomfort during surgery were assessed. Results There was no patient in which the anesthetic was changed to another method during the operation. VAS pain score of postoperative 1 h was significantly different between the Nerve Block (1.4 ± 1.7), spinal anesthesia (1.5 ± 1.1), and general anesthesia groups (6.2 ± 5.1) ( P
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Can Ultrasound-Guided Nerve Block be a useful method of anesthesia for arthroscopic knee surgery?
Knee Surgery Sports Traumatology Arthroscopy, 2014Co-Authors: Chan Kang, Jae-hwang SongAbstract:Purpose This study was performed to compare general anesthesia, spinal anesthesia, and ultrasound (US)-guided Nerve Block for knee arthroscopic surgery. Also, whether US-guided Nerve Block is a useful method of anesthesia for arthroscopic knee surgery was investigated.
Thomas Fichtner Bendtsen - One of the best experts on this subject based on the ideXlab platform.
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Randomized trial of Ultrasound-Guided superior cluneal Nerve Block
Regional Anesthesia and Pain Medicine, 2019Co-Authors: Thomas D. Nielsen, Jens Børglum, Bernhard Moriggl, Jeppe Barckman, Jan Mick Jensen, Jens A. Kolsen-petersen, Kjeld Søballe, Thomas Fichtner BendtsenAbstract:Background and objectives The superior cluneal Nerves originate from the dorsal rami of primarily the upper lumbar spinal Nerves. The Nerves cross the iliac spine to innervate the skin and subcutaneous tissue over the gluteal region. The Nerves extend as far as the greater trochanter and the area of innervation may overlap anterolaterally with the iliohypogastric and the lateral femoral cutaneous (LFC) Nerves. A selective Ultrasound-Guided Nerve Block technique of the superior cluneal Nerves does not exist. A reliable Nerve Block technique may have application in the management of postoperative pain after hip surgery as well as other clinical conditions, for example, chronic lower back pain. In the present study, the primary aim was to describe a novel Ultrasound-Guided superior cluneal Nerve Block technique and to map the area of cutaneous anesthesia and its coverage of the hip surgery incisions. Methods The study was carried out as two separate investigations. First, dissection of 12 cadaver sides was conducted in order to test a novel superior cluneal Nerve Block technique. Second, this Nerve Block technique was applied in a randomized trial of 20 healthy volunteers. Initially, the LFC, the subcostal and the iliohypogastric Nerves were Blocked bilaterally. A transversalis fascia plane (TFP) Block technique was used to Block the iliohypogastric Nerve. Subsequently, randomized, blinded superior cluneal Nerve Blocks were conducted with active Block on one side and placebo Block contralaterally. Results Successful anesthesia after the superior cluneal Nerve Block was achieved in 18 of 20 active sides (90%). The area of anesthesia after all successful superior cluneal Nerve Blocks was adjacent and posterior to the area anesthetized by the combined TFP and subcostal Nerve Blocks. The addition of the superior cluneal Nerve Block significantly increased the anesthetic coverage of the various types of hip surgery incisions. Conclusion The novel Ultrasound-Guided Nerve Block technique reliably anesthetizes the superior cluneal Nerves. It anesthetizes the skin posterior to the area innervated by the iliohypogastric and subcostal Nerves. It improves the anesthetic coverage of incisions used for hip surgery. Among potential indications, this new Nerve Block may improve postoperative analgesia after hip surgery and may be useful as a diagnostic Block for various chronic pain conditions. Clinical trials are mandated. Trial registration number EudraCT, 2016-004541-82.
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Reply to Dr Coraci et al.
Regional Anesthesia and Pain Medicine, 2018Co-Authors: Thomas D. Nielsen, Thomas Fichtner BendtsenAbstract:To the Editor:We appreciate the interest expressed by Coraci et al1 in our article, “The Lateral Femoral Cutaneous Nerve: Description of the Sensory Territory and a Novel Ultrasound-Guided Nerve Block Technique” presenting a novel Ultrasound-Guided lateral femoral cutaneous (LFC) Nerve Block techniq
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the lateral femoral cutaneous Nerve description of the sensory territory and a novel ultrasound guided Nerve Block technique
Regional Anesthesia and Pain Medicine, 2018Co-Authors: Thomas D. Nielsen, Jens Børglum, Bernhard Moriggl, Jeppe Barckman, Kjeld Søballe, Jens A Kolsenpetersen, Thomas Fichtner BendtsenAbstract:Background and Objectives Nerve Blockade of the lateral femoral cutaneous (LFC) Nerve provides some analgesia after hip surgery. However, knowledge is lacking about the extent of the cutaneous area anesthetized by established LFC Nerve Block techniques, as well as the success rate of anesthetic coverage of various surgical incisions. Nerve Block techniques that rely on ultrasonographic identification of the LFC Nerve distal to the inguinal ligament can be technically challenging. Furthermore, the branching of the LFC Nerve is variable, and it is unknown if proximal LFC Nerve branches are anesthetized using the current techniques. The primary aim of this study was to investigate a novel Ultrasound-Guided LFC Nerve Block technique based on injection into the fat-filled flat tunnel (FFFT), which is a duplicature of the fascia lata between the sartorius and the tensor fasciae latae muscle, in order to assess the success rate of anesthetizing the proximal LFC Nerve branches and covering of the different surgical incisions used for hip surgery. Methods First, a cadaveric study was conducted in order to identify an FFFT injection technique that would provide adequate injectate spread to the proximal LFC Nerve branches. Second, a clinical study was conducted in a group of 20 healthy volunteers over 2 consecutive days. On trial day 1, successful complete anesthesia of the LFC Nerve was defined by performing a suprainguinal fascia iliaca Block bilaterally in each subject. On trial day 2, a triple-blind randomized controlled trial compared the effect of the novel Ultrasound-Guided LFC Nerve Block technique for bupivacaine versus placebo. The primary end point was the success rate of anesthesia of the proximal cutaneous area innervated by the LFC Nerve for the FFFT injection with bupivacaine versus placebo. Results Adequate spread of injectate to the proximal LFC Nerve branches in cadavers was obtained by injecting 10 mL with dynamic needle-tip tracking in the FFFT. Application of this technique in the randomized controlled trial provided anesthesia of the lateral thigh with a success rate of 95% (95% confidence interval, 73.9%–99.8%) for the active side and 0% for placebo (P Conclusions This novel LFC Nerve Block technique is easy and quick and reliably produces anesthesia of the lateral thigh. The greater trochanter is rarely included in the area of anesthesia, which reduces the coverage of each specific surgical incision. The success rate of 68% in anesthetizing the proximal Nerve branches must be further evaluated by future research.
Clemente Muriel - One of the best experts on this subject based on the ideXlab platform.
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Anatomical-Ultrasound Visor for Regional Anaesthesia
Journal of Medical Systems, 2016Co-Authors: Juan A. Juanes, Pablo Alonso, Felipe Hernández, Pablo Ruisoto, Clemente MurielAbstract:Introduction. Regions considered optimal for performing peripheral Nerve Blocking have been well documented. However identify and perform regional anesthesia in those regions from ultrasound images remains a challenge. Aim. This study aims to develop a virtual environment for the simulation of ultrasound exploration of the neck Nerves and both the upper and lower limbs for regional anesthesia. Method. Cross-sectional images were obtained from Magnetic Resonance Imaging for puncture regions involved in Ultrasound-Guided Nerve Block. Results. A three-dimensional digital viewer was developed for the anatomical and ultrasound identification of key structures involved in peripheral Nerve Block in neck, upper and lower limbs. Conclusion. This study provides a virtual environment software used to simulate ultrasound exploration of Nerve neck and upper and lower limbs for regional anesthesia. Discussion. Potential implications of this tool for improving the ultrasound exploration for regional anesthesia and acquisition of anatomical knowledge are further discussed.
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TEEM - Digital viewer for learning regional anaesthesia
Proceedings of the First International Conference on Technological Ecosystem for Enhancing Multiculturality - TEEM '13, 2013Co-Authors: Juan A. Juanes, Pablo Alonso, Felipe Hernández, Pablo Ruisoto, José A. Santos, Clemente MurielAbstract:Background. Performing peripheral Nerve Block is a key element in the curriculum of medical students, in particular, anesthesiologists. Regions considered optimal for performing peripheral Nerve Blocking have been well documented. However, students and professors show difficulties in both learning and teaching the way to identify and perform regional anesthesia in those regions from ultrasound images. Purpose. This study aims to develop a virtual environment for the simulation of ultrasound exploration of the neck Nerves and both the upper and lower limbs for regional anesthesia teaching and learning. Method. Cross-sectional images were obtained from Magnetic Resonance Imaging for puncture regions involved in Ultrasound-Guided Nerve Block. Results. A three-dimensional digital viewer was developed which allowed the identification of key structures involved in peripheral Nerve Block in neck, upper and lower limbs. Additionally, a complete list of neuromuscular systems of the arms and legs, involving Nerves and muscles, are also displayed for their study. Conclusions. Implications for learning and teaching the ultrasound exploration for regional anesthesia procedures and acquisition of anatomical knowledge are discussed.
Jens Børglum - One of the best experts on this subject based on the ideXlab platform.
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Randomized trial of Ultrasound-Guided superior cluneal Nerve Block
Regional Anesthesia and Pain Medicine, 2019Co-Authors: Thomas D. Nielsen, Jens Børglum, Bernhard Moriggl, Jeppe Barckman, Jan Mick Jensen, Jens A. Kolsen-petersen, Kjeld Søballe, Thomas Fichtner BendtsenAbstract:Background and objectives The superior cluneal Nerves originate from the dorsal rami of primarily the upper lumbar spinal Nerves. The Nerves cross the iliac spine to innervate the skin and subcutaneous tissue over the gluteal region. The Nerves extend as far as the greater trochanter and the area of innervation may overlap anterolaterally with the iliohypogastric and the lateral femoral cutaneous (LFC) Nerves. A selective Ultrasound-Guided Nerve Block technique of the superior cluneal Nerves does not exist. A reliable Nerve Block technique may have application in the management of postoperative pain after hip surgery as well as other clinical conditions, for example, chronic lower back pain. In the present study, the primary aim was to describe a novel Ultrasound-Guided superior cluneal Nerve Block technique and to map the area of cutaneous anesthesia and its coverage of the hip surgery incisions. Methods The study was carried out as two separate investigations. First, dissection of 12 cadaver sides was conducted in order to test a novel superior cluneal Nerve Block technique. Second, this Nerve Block technique was applied in a randomized trial of 20 healthy volunteers. Initially, the LFC, the subcostal and the iliohypogastric Nerves were Blocked bilaterally. A transversalis fascia plane (TFP) Block technique was used to Block the iliohypogastric Nerve. Subsequently, randomized, blinded superior cluneal Nerve Blocks were conducted with active Block on one side and placebo Block contralaterally. Results Successful anesthesia after the superior cluneal Nerve Block was achieved in 18 of 20 active sides (90%). The area of anesthesia after all successful superior cluneal Nerve Blocks was adjacent and posterior to the area anesthetized by the combined TFP and subcostal Nerve Blocks. The addition of the superior cluneal Nerve Block significantly increased the anesthetic coverage of the various types of hip surgery incisions. Conclusion The novel Ultrasound-Guided Nerve Block technique reliably anesthetizes the superior cluneal Nerves. It anesthetizes the skin posterior to the area innervated by the iliohypogastric and subcostal Nerves. It improves the anesthetic coverage of incisions used for hip surgery. Among potential indications, this new Nerve Block may improve postoperative analgesia after hip surgery and may be useful as a diagnostic Block for various chronic pain conditions. Clinical trials are mandated. Trial registration number EudraCT, 2016-004541-82.
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the lateral femoral cutaneous Nerve description of the sensory territory and a novel ultrasound guided Nerve Block technique
Regional Anesthesia and Pain Medicine, 2018Co-Authors: Thomas D. Nielsen, Jens Børglum, Bernhard Moriggl, Jeppe Barckman, Kjeld Søballe, Jens A Kolsenpetersen, Thomas Fichtner BendtsenAbstract:Background and Objectives Nerve Blockade of the lateral femoral cutaneous (LFC) Nerve provides some analgesia after hip surgery. However, knowledge is lacking about the extent of the cutaneous area anesthetized by established LFC Nerve Block techniques, as well as the success rate of anesthetic coverage of various surgical incisions. Nerve Block techniques that rely on ultrasonographic identification of the LFC Nerve distal to the inguinal ligament can be technically challenging. Furthermore, the branching of the LFC Nerve is variable, and it is unknown if proximal LFC Nerve branches are anesthetized using the current techniques. The primary aim of this study was to investigate a novel Ultrasound-Guided LFC Nerve Block technique based on injection into the fat-filled flat tunnel (FFFT), which is a duplicature of the fascia lata between the sartorius and the tensor fasciae latae muscle, in order to assess the success rate of anesthetizing the proximal LFC Nerve branches and covering of the different surgical incisions used for hip surgery. Methods First, a cadaveric study was conducted in order to identify an FFFT injection technique that would provide adequate injectate spread to the proximal LFC Nerve branches. Second, a clinical study was conducted in a group of 20 healthy volunteers over 2 consecutive days. On trial day 1, successful complete anesthesia of the LFC Nerve was defined by performing a suprainguinal fascia iliaca Block bilaterally in each subject. On trial day 2, a triple-blind randomized controlled trial compared the effect of the novel Ultrasound-Guided LFC Nerve Block technique for bupivacaine versus placebo. The primary end point was the success rate of anesthesia of the proximal cutaneous area innervated by the LFC Nerve for the FFFT injection with bupivacaine versus placebo. Results Adequate spread of injectate to the proximal LFC Nerve branches in cadavers was obtained by injecting 10 mL with dynamic needle-tip tracking in the FFFT. Application of this technique in the randomized controlled trial provided anesthesia of the lateral thigh with a success rate of 95% (95% confidence interval, 73.9%–99.8%) for the active side and 0% for placebo (P Conclusions This novel LFC Nerve Block technique is easy and quick and reliably produces anesthesia of the lateral thigh. The greater trochanter is rarely included in the area of anesthesia, which reduces the coverage of each specific surgical incision. The success rate of 68% in anesthetizing the proximal Nerve branches must be further evaluated by future research.
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Ultrasound-Guided Nerve Block for inguinal hernia repair: a randomized, controlled, double-blind study.
Regional Anesthesia and Pain Medicine, 2012Co-Authors: Finn Bærentzen, Christian Maschmann, Kenneth Jensen, Bo Belhage, Margaret Hensler, Jens BørglumAbstract:Background and Objectives Open inguinal hernia repair in adults is considered a minor surgical procedure but can be associated with significant pain. We aimed to evaluate acute postoperative pain management in male adults randomized to receive an Ultrasound-Guided ilioinguinal and iliohypogastric Nerve Block administered before surgery, in addition to a standard analgesic regimen. Methods Sixty patients were included in this randomized, controlled, and double-blind study. Patients were randomized to the administration of a Block with 20 mL bupivacaine 0.5% or a placebo Block with 20 mL saline. The primary outcome measure was pain at mobilization in the postanesthesia care unit (PACU). Pain at rest, dermatomal anesthesia, time spent in the PACU/ward, opioid consumption, postoperative vomiting and nausea, ability to perform activities of daily living, and perceived ill health status were secondary outcomes. Results A significant reduction in pain scores at mobilization (P 5) and moderate (numerical rating scale >3) pain at mobilization and rest, respectively. Opioid consumption and time spent in the PACU were not significantly different between groups. Conclusions Ultrasound-Guided Blocks of the ilioinguinal and iliohypogastric Nerves resulted in a statistically significant and clinically relevant reduction in postoperative pain in the PACU both at mobilization and at rest.
