Abstract:
BACKGROUND:Noticeable changes in vital signs indicating hypovolemia occur only after 15% of the blood volume is lost. More sensitive variables (e.g., cardiac output, systolic pressure variation and its Δdown component) are invasive and difficult to obtain in the early phase of bleeding. Lately, a new technology for continuous optical measurements of minute-to-minute urine flow rates has become available. We performed a preliminary evaluation to determine whether urine flow can act as an early and sensitive warning of hypovolemia. METHODS:Eleven patients (ASA physical status I-II) undergoing posterior spine fusion surgery were studied prospectively. Study variables included heart rate, blood pressure (systolic and diastolic), systolic pressure variation and Δdown, minute urinary flow, hemoglobin, blood and urinary sodium, and creatinine in the blood and urine. Urine flow rate was measured using URINFO 2000™ (FlowSense Medical, Misgav, Israel). After recording baseline variables, 10 mL/kg of the patient's blood was shed and a second set of variables was recorded. Subsequently, hypovolemia was reversed by infusing colloid solution (hetastarch 6%) followed by recording a third set of variables. These 3 observations were then compared. RESULTS:An average of 614 ± 143 mL (mean ± SD) of blood was shed. During phlebotomy, the mean urine flow rate decreased from 5.7 ± 8 mL/min to 1.07 ± 2.5 mL/min. Systolic blood pressure and hemoglobin also decreased. Δdown increased. After rehydration, urine flow, blood pressure, and Δdown values returned to baseline. The hemoglobin concentration decreased whereas other variables did not change significantly. CONCLUSION:Urine flow rate is a dynamic variable that seems to be a reliable indicator of changes in blood volume. These results justify further investigation.
journal_name
Anesth Analgjournal_title
Anesthesia and analgesiaauthors
Shamir MY,Kaplan L,Marans RS,Willner D,Klein Ydoi
10.1213/ANE.0b013e31820ad4efsubject
Has Abstractpub_date
2011-03-01 00:00:00pages
593-6issue
3eissn
0003-2999issn
1526-7598pii
ANE.0b013e31820ad4efjournal_volume
112pub_type
杂志文章abstract:UNLABELLED:We performed this study to compare the correlation of bispectral index (BIS) values with different sevoflurane concentrations between normal children and those with quadriplegic cerebral palsy with mental retardation (CPMR). Twenty children with CPMR (Group I) and 21 normal children (Group II) between 2 and ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200212000-00020
更新日期:2002-12-01 00:00:00
abstract:BACKGROUND:A lighted stylet is an effective alternative to a direct laryngoscope and has been reported to be particularly useful in patients with difficult airways. A high Mallampati class indicates poor visibility of the oropharyngeal structures. Because a lighted stylet does not require direct oropharyngeal visualiza...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ane.0b013e3181994fba
更新日期:2009-04-01 00:00:00
abstract::In this prospective, randomized, double-blind study, we compared the efficacy and safety of ondansetron and metoclopramide in the treatment of postoperative nausea and vomiting (PONV). One hundred seventy-five patients with PONV during recovery from anesthesia for gynecological laparoscopy were treated intravenously w...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000539-199708000-00027
更新日期:1997-08-01 00:00:00
abstract::As infectious complications from blood transfusion have decreased because of improved donor questionnaires and sophisticated infectious disease blood screening, noninfectious serious hazards of transfusion (NISHOTs) have emerged as the most common complications of transfusion. The category of NISHOTs is very broad, in...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ane.0b013e3181930a6e
更新日期:2009-03-01 00:00:00
abstract:UNLABELLED:We investigated halothane's effects on the function of L-type Ca2+ channels in a human neuronal cell line, SH-SY5Y, by using the cell-attached patch voltage clamp configuration and Ba2+ as the charge carrier. In multiple-channel patches, halothane decreased the peak and persistent Ba2+ currents, accelerated ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-199804000-00038
更新日期:1998-04-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000167771.98680.a7
更新日期:2005-10-01 00:00:00
abstract::Hospitals rely on pagers and ordinary telephones to reach staff members in emergency situations. New telecommunication technologies such as General Packet Radio Service (GPRS), the third generation mobile phone system Universal Mobile Telecommunications System (UMTS), and Wireless Local Area Network (WLAN) might be ab...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ANE.0000180216.83554.00
更新日期:2005-11-01 00:00:00
abstract::Median convulsant (CD50) and median lethal (LD50) doses of intraperitoneal lidocaine, bupivacaine, and etidocaine were determined in 149 mice. Another 496 mice were pretreated with intramuscular diazepam, lorazepam, or midazolam, 1 mg/kg. Fifteen minutes later, lidocaine, bupivacaine, or etidocaine was given intraperi...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1981-06-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:
更新日期:1987-10-01 00:00:00
abstract:UNLABELLED:The aim of this study was to investigate modern and classical electroencephalographic (EEG) variables in response to remifentanil and propofol infusions. We hypothesized that modern EEG variables may indicate the effects of propofol but not of remifentanil. Twenty-five patients were included in the study aft...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1097/00000539-200211000-00042
更新日期:2002-11-01 00:00:00
abstract:UNLABELLED:Incorrect positioning of central venous catheters (CVC) in infants and children may lead to serious complications such as perforation of the heart or great vessels. CVC position is not usually assessed until the first postoperative chest radiograph, potentially leaving malposition undetected for several hour...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章
doi:10.1097/00000539-200110000-00016
更新日期:2001-10-01 00:00:00
abstract:BACKGROUND:Thoracic epidural anesthesia is often used as a postoperative analgesic technique in thoracic surgery. However, the structure of the overlapping spinous processes, resulting in interlaminar space occlusion, often makes thoracic epidural needle placement difficult. With the development of multi-detector row s...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e31815efa06
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND:Respiratory variations in arterial pulse pressure (DeltaPP) are accurate predictors of fluid responsiveness in mechanically ventilated patients. The aim of our study was to assess the ability of a novel algorithm for automatic estimation of stroke volume variation (SVV) to predict fluid responsiveness in mec...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ane.0b013e318192a36b
更新日期:2009-02-01 00:00:00
abstract::Agreement between estimated fibrinogen concentration via thromboelastography and traditional assays is not established in the parturient. We therefore recruited 56 parturients and performed Clauss and functional fibrinogen level (FLEV) tests. Mean difference of measurements was 36.8 mg/dL (95% CI, 21.8-51.9) with a st...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000003301
更新日期:2019-09-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e318265bab7
更新日期:2012-10-01 00:00:00
abstract:BACKGROUND:Transesophageal echocardiography (TEE) is a valuable monitor for patients undergoing cardiac and noncardiac surgery as it allows for evaluation of cardiovascular compromise in the perioperative period. It is challenging for anesthesiology residents and medical students to learn to use and interpret TEE in th...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0000000000002004
更新日期:2017-05-01 00:00:00
abstract:IMPLICATIONS:The performance of regional blockade on a patient with a preexisting neurologic condition or a history of neurologic complications after regional anesthesia is controversial. We present a case of recurring brachial plexus neuropathy in a diabetic patient after two shoulder procedures performed 4 mo apart. ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1097/00000539-200009000-00035
更新日期:2000-09-01 00:00:00
abstract:BACKGROUND:Although invasive monitoring is the standard method for intracranial pressure (ICP) measurement, it is not without potential for serious complications. Noninvasive methods have been proposed as alternatives to invasive ICP monitoring. The study aimed to investigate the diagnostic accuracy of the currently av...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000005189
更新日期:2020-09-24 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章,meta分析,评审
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更新日期:2016-03-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1995-02-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/01.ane.0000117225.31416.36
更新日期:2004-06-01 00:00:00
abstract:BACKGROUND:Airway management continues to pose challenges to the obstetric anesthesiologist. Functional residual capacity (FRC), which acts as an oxygen reservoir, is reduced from the second trimester onwards and is exacerbated in the supine position. Mechanisms to increase FRC may delay the onset of hypoxemia during p...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e31822bf1d2
更新日期:2011-11-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 杂志文章
doi:10.1213/ANE.0000000000000805
更新日期:2015-09-01 00:00:00
abstract:BACKGROUND:Lung-protective ventilation (LPV) has been demonstrated to improve clinical outcomes in surgical patients. There are very limited data on the current use of LPV for patients undergoing 1-lung ventilation (1LV) despite evidence that 1LV may be a particularly important setting for its use. In this multicenter ...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,多中心研究
doi:10.1213/ANE.0000000000002642
更新日期:2018-02-01 00:00:00
abstract:BACKGROUND:Percutaneous cannulation of the femoral vein, in the pediatric age group, can be technically challenging, especially when performed by residents in training. We examined whether the use of real-time ultrasound guidance is superior to a landmark technique for femoral vein catheterization in children undergoin...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e3181e9c475
更新日期:2010-09-01 00:00:00
abstract::In this review article, we address issues related to using data from anesthesia information management systems (AIMS) to deliver near real-time alerts via AIMS workstation popups and/or alphanumeric pagers and post hoc reports via e-mail. We focus on reports and alerts for influencing the behavior of anesthesia provid...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ANE.0000000000000677
更新日期:2015-09-01 00:00:00
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journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2004-04-01 00:00:00
abstract:BACKGROUND:In this prospective, randomized, observer-blinded trial, we compared ultrasound-guided subparaneural popliteal sciatic nerve blocks performed either at or proximal to the neural bifurcation (B). We hypothesized that the total anesthesia-related time (sum of performance and onset times) would be decreased wit...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,随机对照试验
doi:10.1213/ANE.0b013e31828a73be
更新日期:2013-05-01 00:00:00
abstract::The efficacy of lidocaine during myocardial reperfusion in coronary artery bypass surgery was evaluated in 20 patients randomly assigned to a control group (n = 10) or to receive lidocaine, 1 mg/kg intravenously 5 min before aortic unclamping and cardiac reperfusion, followed by infusion at 40 micrograms X kg-1 X min-...
journal_title:Anesthesia and analgesia
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1986-04-01 00:00:00
abstract::While a large number of studies has examined the efficacy of opioid-sparing analgesics in adult surgical populations, fewer studies are available to guide postoperative pain treatment in pediatric patients. We systematically reviewed available publications on the use of systemic nonopioid agents for postoperative anal...
journal_title:Anesthesia and analgesia
pub_type: 杂志文章,评审
doi:10.1213/ANE.0000000000002434
更新日期:2017-11-01 00:00:00