Abstract：
BACKGROUND:The efficacy of an ultrasound guided transmuscular quadratus lumborum block (QLB) for perioperative analgesia of the upper and lower abdomen remain debatable. The purpose of this study was to compare the cutaneous sensory blocked area (CSBA) between QLB blocks performed at the L2 vs. L4 levels. METHODS:Twenty-two healthy volunteers were randomized 1:1 to receive an ultrasound guided right transmuscular QLB at the L2 level (group QL2) or L4 level (group QL4). A cold stimulus was applied for testing of the CSBA at 30 minutes after the blockade was performed. The CSBA was mapped and then calculated. Three hours after the QLB, a cold stimulus was applied once every hour until sensation returned normal and the effective block duration for each volunteer was determined and recorded. RESULTS:The maximum cephalad dermatome level reached was T7 in group QL2 vs. T11 in group QL4, respectively. Caudally, both groups reached the L2 dermatome level. The QL2 block primarily affected dermatomes T9 to L1, while the QL4 block affected T11 to L1. The total CSBA was larger in QL2 group than that in QL4 group (748 [171] cm2 vs. 501 [186] cm2, P=0.004). The effective duration of the QLB was significantly longer in group QL2 than in group QL4 (18.5 [2.0]h vs. 14.1 [4.7]h, P=0.012). The number of affected dermatomes assessed by cold test was significantly larger for the volunteers in groups QL2 (4.6 [0.81] vs. 2.1 [0.30], P<0.001). CONCLUSIONS:Ultrasound guided transmuscular QLB injection of 0.375% 20 mL ropivacaine at the L2 level produced a widespread cutaneous sensory blockade and a prolonged sensory block to cold sensation compared with the L4 level.
journal_name
Minerva Anestesioljournal_title
Minerva anestesiologicaauthors
Lu Y,Zhang J,Xu X,Chen W,Zhang S,Zheng H,Xia Y,Papadimos TJ,Xu X,Chen Hdoi
10.23736/S0375-9393.19.13656-5subject
Has Abstractpub_date
2019-12-01 00:00:00pages
1273-1280issue
12eissn
0375-9393issn
1827-1596pii
S0375-9393.19.13656-5journal_volume
85pub_type
杂志文章,随机对照试验abstract：:Although the central nervous system is the primary endpoint of most general anesthetics, it is still the least monitored organ in clinical anesthesiology. In the last decade, technological research has expanded the application of near-infrared spectroscopy to allow continuous, non-invasive, and bedside monitoring of c...
journal_title：Minerva anestesiologica
pub_type： 杂志文章,评审
doi：
更新日期：2006-07-01 00:00:00
abstract：:Prehospital care is a fundamental element for the patient's outcome, in the field of medical and surgical emergencies. There are different strategies about it, defined "scoop and run" and "stay and play". The choice among the different strategies, in our opinion, must be well-suited to the underlying pathophysiology o...
journal_title：Minerva anestesiologica
pub_type： 杂志文章,评审
doi：
更新日期：2000-12-01 00:00:00
abstract：BACKGROUND:GABA (γ-aminobutyric acid) is the primary inhibitory neurotransmitter in the CNS and well-known target for general anesthetics. In addition, the dysregulation of GABA could be involved in the etiology of major depressive disorder (MDD). In this study, we aimed to determine whether MDD has any effect on anest...
journal_title：Minerva anestesiologica
pub_type： 杂志文章
doi：10.23736/S0375-9393.17.11713-X
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journal_title：Minerva anestesiologica
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更新日期：1994-12-01 00:00:00
abstract：BACKGROUND:To compare the anaesthetic epidural effects of levobupivacaine plus fentanyl versus bupivacaine plus fentanyl in patients undergoing lower limb surgery. METHODS:A single blind, randomised, prospective, multicentre study was designed to compare both therapies. The study was conducted in 10 tertiary hospitals...
journal_title：Minerva anestesiologica
pub_type： 杂志文章,多中心研究,随机对照试验
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更新日期：2008-07-01 00:00:00
abstract：:Bowel dysfunction, especially ileus, has been increasingly recognized in critically ill patients. Ileus is commonly associated to constipation, however abnormal motility can also concern the upper digestive tract, therefore impaired gastrointestinal transit (IGT) seems to be a more appropriate term. IGT, especially co...
journal_title：Minerva anestesiologica
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journal_title：Minerva anestesiologica
pub_type： 杂志文章
doi：
更新日期：2012-03-01 00:00:00
abstract：:The purpose of the case is to report the clinical value of the ultrasound-guided posterior approach to the brachial plexus in the treatment of phantom limb syndrome after an upper extremity amputation. The author experienced ultrasound guidance as sole technique to localize the brachial plexus for the purpose of placi...
journal_title：Minerva anestesiologica
pub_type： 杂志文章
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更新日期：2012-01-01 00:00:00
abstract：BACKGROUND:The goal of this paper was to investigate the association between patterns of intracranial hypertension (IH) and outcomes, to describe the treatment of patients with different patterns of IH, and to examine whether IH is an independent predictor of mortality and unfavourable outcome, respectively. METHODS:A...
journal_title：Minerva anestesiologica
pub_type： 杂志文章
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更新日期：2014-12-01 00:00:00
abstract：:Intraoperative hemodynamic and respiratory data from one-year experience of orthotopic liver transplantation with veno-venous bypass (10 cases) were collected. Seven different phases of OLT was submitted to one way analysis of variance. Variability is due to degree and duration of liver disease. Basal conditions inclu...
journal_title：Minerva anestesiologica
pub_type： 杂志文章
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更新日期：1990-04-01 00:00:00
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journal_title：Minerva anestesiologica
pub_type： 杂志文章,随机对照试验
doi：
更新日期：2008-05-01 00:00:00
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journal_title：Minerva anestesiologica
pub_type： 临床试验,杂志文章
doi：
更新日期：1997-01-01 00:00:00
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journal_title：Minerva anestesiologica
pub_type： 杂志文章,评审
doi：
更新日期：2006-06-01 00:00:00
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journal_title：Minerva anestesiologica
pub_type： 临床试验,杂志文章
doi：
更新日期：1997-10-01 00:00:00
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journal_title：Minerva anestesiologica
pub_type： 杂志文章,评审
doi：
更新日期：2008-03-01 00:00:00
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journal_title：Minerva anestesiologica
pub_type： 杂志文章,评审
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更新日期：2006-03-01 00:00:00
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journal_title：Minerva anestesiologica
pub_type： 杂志文章
doi：
更新日期：2010-05-01 00:00:00
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journal_title：Minerva anestesiologica
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更新日期：2005-09-01 00:00:00
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journal_title：Minerva anestesiologica
pub_type： 杂志文章,评审
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更新日期：2012-09-01 00:00:00
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journal_title：Minerva anestesiologica
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doi：
更新日期：2012-05-01 00:00:00
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journal_title：Minerva anestesiologica
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更新日期：2016-10-01 00:00:00
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更新日期：2015-07-01 00:00:00
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journal_title：Minerva anestesiologica
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更新日期：2008-04-01 00:00:00
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