Abstract:
BACKGROUND AND OBJECTIVES:Accurate needle control during ultrasound (US)-guided nerve blocks may be an elusive goal for the anesthesiologist. Despite modifications to increase echogenicity, needle visibility still requires precise alignment within the transducer beam. In this study, we evaluated a magnetically guided ultrasound (MGU) system that produces a real-time, graphic display of the needle position and trajectory that is independent of the US beam. METHODS:The MGU system was compared with echogenic needles and conventional ultrasound (CU) by anesthesiologists with and without prior experience performing US-guided nerve blocks. Participants were asked to perform tasks to quantify accuracy with respect to needle direction (directional accuracy) and needle tip position (positional accuracy). These evaluations were performed in a porcine tissue model. RESULTS:Regarding directional accuracy, inexperienced subjects were able to contact a target capsule with a single needle pass during both in-plane (IP) and out-of-plane (OOP) approaches using the magnetic guidance system. By contrast, using CU, subjects required redirection 3.8 ± 2.4 (P = 0.02), and 4.5 ± 3.9 (P = 0.04) times, respectively, for IP and OOP approaches. Experienced subjects contacted the target capsule with a single pass for both IP and OOP approaches when using the magnetic guidance system. With CU, experienced subjects were able to contact the target with a single pass using an IP approach but required redirection 3.4 ± 2.8 (P = 0.046) times during OOP approaches. Positional accuracy was also superior for both inexperienced (P = 0.04) and experienced (P = 0.02) users during an OOP approach. CONCLUSIONS:In a tissue model, the MGU system improved control of needle trajectory and needle tip position for both inexperienced and experienced subjects.
journal_name
Reg Anesth Pain Medjournal_title
Regional anesthesia and pain medicineauthors
Swenson JD,Klingler KR,Pace NL,Davis JJ,Loose ECdoi
10.1097/AAP.0000000000000390subject
Has Abstractpub_date
2016-05-01 00:00:00pages
356-61issue
3eissn
1098-7339issn
1532-8651journal_volume
41pub_type
杂志文章,随机对照试验abstract:BACKGROUND AND OBJECTIVES:This case series assesses the in vivo spread of contrast within the adductor canal in subjects who recently underwent a total knee arthroplasty. A previous analysis of profound leg weakness with a continuous adductor canal revealed contrast spread from the adductor canal to the femoral triangl...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1097/AAP.0000000000000216
更新日期:2015-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:In order to prolong labor analgesia, one may add intrathecal epinephrine to the combination of bupivacaine and fentanyl. In this study, we tested the hypothesis that the addition of intrathecal epinephrine would lessen the requirement for a rescue dose of epidural analgesia during labor. METH...
journal_title:Regional anesthesia and pain medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1053/rapm.2003.50026
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:A variety of brachial plexus block techniques via the interscalene approach have been proposed. We describe here a new middle interscalene perivascular approach to the brachial plexus. To verify its effectiveness, we studied 719 patients scheduled for shoulder arthroscopy. Furthermore, to veri...
journal_title:Regional anesthesia and pain medicine
pub_type: 临床试验,杂志文章
doi:10.1016/j.rapm.2006.05.015
更新日期:2006-11-01 00:00:00
abstract:OBJECTIVE:We present a case of intense herpes zoster-related pain and itching in the ophthalmic division of the trigeminal nerve (V1). Successful pain and itch management was achieved after insertion of a high thoracic epidural catheter with a continuous infusion of bupivacaine and clonidine. CASE REPORT:A 73-year-old...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1016/s1098-7339(03)00182-2
更新日期:2003-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Whether patients titrate themselves to an individualized blood or plasma opioid concentration (the so-called minimum effective concentration or [MEC]) has been debated extensively. Nevertheless, there is consistent opinion that during patient controlled analgesia (PCA) patients balance accepta...
journal_title:Regional anesthesia and pain medicine
pub_type: 临床试验,杂志文章
doi:10.1016/s1098-7339(00)90008-7
更新日期:2000-05-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:We describe a new therapeutic modality for sacroiliac joint syndrome that represents an alternative to other treatment modalities. We report on four cases of sacroiliac joint syndrome with severe pain. METHODS:Three patients had undergone operative treatment of the lumbar spine and one patien...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1016/s1098-7339(99)90170-0
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Several studies have evaluated the impact of preoperative depression on outcomes following total joint arthroplasty (TJA), however few have studied new-onset depression or anxiety after TJA. We aimed to identify the incidence of and risk factors for new-onset depression/anxiety after TJA, specifically focusi...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1136/rapm-2019-100785
更新日期:2019-09-16 00:00:00
abstract::The past century has seen immense progress in the advancement of methodology to evaluate efficacy of treatment interventions for acute and chronic pain. Continuing challenges revolve around how to best select and measure primary efficacy outcomes for a given analgesic trial. Recognizing the complex, multidimensional, ...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章,评审
doi:10.1097/AAP.0b013e318217a635
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Given the readily increasing membership of the pain physician community, efforts toward correcting notable gender disparities are instrumental. The under-representation of women is particularly prevalent within leadership roles in academic medicine, thought to be driven largely by diminished research efforts...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1136/rapm-2019-100806
更新日期:2019-11-02 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Epidural anesthesia (EA) is known to reduce postoperative thromboembolic complications, but mechanisms are incompletely understood. In this study, we tested the hypothesis that local anesthetics (LA) prevent postoperative hypercoagulability without affecting physiologic aggregation and coagula...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1053/rapm.2001.23209
更新日期:2001-05-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Major ankle surgery causes intense postoperative pain, and whereas the importance of a sciatic nerve block is well established, the clinical significance of a supplemental saphenous nerve block has never been determined in a prospective, randomized, double-blind, placebo-controlled trial. We h...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1097/AAP.0000000000000764
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE:To describe a late neurologic complication of intrathecal pump implantation and show the methods used for the diagnosis and successful treatment of transverse myelitis in this setting. CASE REPORT:A 32-year-old man with a chronic abdominal pain syndrome presented with right lower-extremity numbness 2 months ...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1016/s1098-7339(03)00222-0
更新日期:2003-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Shortening the onset time of sensory block is a practical goal to improve the quality of epidural anesthesia. The addition of fentanyl to a local anesthetic solution is widely used during epidural anesthesia. This randomized double-blind study examined the onset time of sensory block during ep...
journal_title:Regional anesthesia and pain medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1053/rapm.2001.27852
更新日期:2001-11-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:We tested the hypothesis that an opioid-free local anesthetic alone is able to provide comparable analgesia to the opioid supplemented epidural application of local anesthetics using thoracic epidural catheters after major abdominal surgery. METHODS:In a prospective, randomized, and double-bl...
journal_title:Regional anesthesia and pain medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1053/rapm.2002.32583
更新日期:2002-07-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:There is a need for local anesthetics that provide consistent analgesia through 72 hours after surgery. This study evaluates the use of HTX-011 (bupivacaine and meloxicam in Biochronomerpolymer technology), an extended-release, dual-acting local anesthetic, in reducing both postoperative pain ...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1136/rapm-2019-100531
更新日期:2019-05-21 00:00:00
abstract:BACKGROUND AND OBJECTIVES:0.1% bupivacaine for obstetric epidural analgesia is given by infusion, using a loading dose of a higher concentration alone or in combination with opioid analgesics. A single dose of 0.1% without any additive for relief of first-stage labor pain has not yet been documented. METHODS:Fifty-eig...
journal_title:Regional anesthesia and pain medicine
pub_type: 临床试验,杂志文章
doi:10.1097/00115550-199823020-00004
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND:The underlying mechanisms of neuropathic pain remain unclear. This work aimed to investigate the role of Sirtuin3 (SIRT3), an nicotinamide adenosine dinucleotide+-dependent histone deacetylase, in the development of neuropathic pain induced by type 2 diabetes mellitus (T2DM) and to explore the associated mec...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1136/rapm-2020-101918
更新日期:2021-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Concern for block-related injury and liability has dissuaded many anesthesiologists from using regional anesthesia for eye and extremity surgery, despite many studies demonstrating the benefits of regional over general anesthesia. To determine injury patterns and liability associated with eye ...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章,多中心研究
doi:10.1016/j.rapm.2008.01.016
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Epinephrine, 25 microg and 200 microg, has been found to prolong the duration of intrathecal labor analgesia when added to an opioid. In our hospital we use the standard epidural mixture, prepared by the pharmacist, containing epinephrine 1:800,000; i.e., 1.25 microg/mL for both spinal and epi...
journal_title:Regional anesthesia and pain medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1053/rapm.2001.24406
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The purpose of this randomized, double-blind study was to evaluate if use of an asymmetric spinal block affects the incidence of hypotension during spinal anesthesia. METHODS:With Ethical Committee approval and patient consent, 120 patients undergoing lower limb surgery were placed in the lat...
journal_title:Regional anesthesia and pain medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s1098-7339(99)90130-x
更新日期:1999-05-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The aim of this study was to determine whether an intrabursal morphine and bupivacaine mixed infusion provides useful analgesia for prolonged pain relief after subacromial arthroscopic operation. METHODS:A continuous intrabursal infusion catheter was inserted at the conclusion of the subacrom...
journal_title:Regional anesthesia and pain medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1053/rapm.2002.31209
更新日期:2002-03-01 00:00:00
abstract::This article in our series on point-of-care ultrasound (US) for the regional anesthesiologist and pain management specialist describes the emerging role of gastric ultrasonography. Although gastric US is a relatively new point-of-care US application in the perioperative setting, its relevance for the regional anesthes...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章,评审
doi:10.1097/AAP.0000000000000846
更新日期:2018-10-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Use of nonsteroidal anti-inflammatory drug (NSAIDs) analgesics is controversial because of cardiovascular risk, but perioperative use may be advantageous for total joint replacement. Thus, we performed this single-center observational cohort study to determine any association between NSAID use...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1097/AAP.0b013e31823354f5
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:There is increasing interest in local infiltration analgesia (LIA) to reduce postoperative pain with knee surgery. Despite widespread use of LIA, wide variations in drug combinations, infiltration techniques, and the concomitant use of systemic analgesics have made it difficult to determine th...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1097/AAP.0000000000000353
更新日期:2016-05-01 00:00:00
abstract::This article provides a brief overview of earlier work of our group on the peripheral signaling of pain, summarizes more recent studies on the role of opioids in chronic neuropathic pain, and speculates on the future of gene-based therapies as novel strategies to enhance the peripheral modulation of pain. Neurophysiol...
journal_title:Regional anesthesia and pain medicine
pub_type:
doi:10.1097/AAP.0b013e31823b145f
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Poorly controlled postoperative pain is strongly associated with the development of chronic pain. We aimed to investigate the effect of topical morphine (in 1 of 3 doses: 5, 10, or 15 mg) on acute and chronic neuropathic pain after modified radical mastectomy for cancer breast. METHODS:In thi...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/AAP.0000000000000496
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:Lipid infusion reverses systemic local anesthetic toxicity. The acceptable upper limit for lipid administration is unknown and has direct bearing on clinical management. We hypothesize that high volumes of lipid could have undesirable effects and sought to identify the dose required to kill 50% of the animal...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1097/aap.0b013e3181c6f5aa
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Bupivacaine is a racemic mixture of S(-)- and R(+)-enantiomers. Both isomers have similar potency as local anesthetics, but the S(-)-enantiomer produces less central nervous system and cardiovascular toxicity. Local anesthetic-induced convulsion is likely to be associated with not only sodium ...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1016/j.rapm.2005.09.004
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:The transversus abdominis plane (TAP) block can be used as part of a multimodal analgesia protocol after abdominal surgery. This study investigated whether a pneumoperitoneum during abdominal surgery influences the spread of local anesthetics. METHODS:Nine fresh frozen cadavers were used for ...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章
doi:10.1097/AAP.0000000000000260
更新日期:2015-07-01 00:00:00
abstract::The COVID-19 outbreak is on the world. While many countries have imposed general lockdown, emergency services are continuing. Healthcare professionals have been infected with the virulent severe acute respiratory syndrome coronavirus-2 (SARS), which spreads by close contact and aerosols. The anesthesiologist is partic...
journal_title:Regional anesthesia and pain medicine
pub_type: 杂志文章,评审
doi:10.1136/rapm-2020-101541
更新日期:2020-07-01 00:00:00