Abstract:
BACKGROUND:Pulse pressure variation (PPV) and stroke volume variation (SVV) are robust indicators of fluid responsiveness in mechanically ventilated supine patients. The aim of the study was to evaluate the ability of PPV and SVV to predict fluid responsiveness in mechanically ventilated patients in the prone position (PP) during scoliosis surgery. METHODS:Thirty subjects were studied after the induction of anaesthesia in the supine position [before and after volume expansion (VE) with 500 ml of hetastarch 6%] and in PP (immediately after PP and before and after VE). PPV, SVV, cardiac output (CO), and static compliance of the respiratory system were recorded at each interval. Subjects were defined as responders (Rs) to VE if CO increased > or =15%. RESULTS:Three subjects were excluded. In the supine position, 16 subjects were Rs. PPV and SVV before VE were correlated with VE-induced changes in CO (r(2)=0.64, P<0.0001 and r(2)=0.56, P<0.0001, respectively). Fluid responsiveness was predicted by PPV >11% (sensitivity=88%, specificity=82%) and by SVV >9% (sensitivity=88%, specificity=91%). PP induced an increase in PPV and SVV (P<0.0001) and a decrease in the static compliance of the respiratory system (P<0.0001). In PP, 17 patients were Rs. PPV and SVV before VE were correlated with VE-induced changes in CO (r(2)=0.59, P<0.0001 and r(2)=0.55, P<0.0005, respectively). Fluid responsiveness was predicted in PP by PPV >15% (sensitivity=100%, specificity=80%) and by SVV >14% (sensitivity=94%, specificity=80%). CONCLUSIONS:PP induces a significant increase in PPV and SVV but does not alter their abilities to predict fluid responsiveness.
journal_name
Br J Anaesthjournal_title
British journal of anaesthesiaauthors
Biais M,Bernard O,Ha JC,Degryse C,Sztark Fdoi
10.1093/bja/aeq031subject
Has Abstractpub_date
2010-04-01 00:00:00pages
407-13issue
4eissn
0007-0912issn
1471-6771pii
S0007-0912(17)33642-5journal_volume
104pub_type
杂志文章abstract::We present a new pattern of nerve stimulation--double burst stimulation (DBS)--to detect residual neuromuscular block manually. The DBS consists of two short lasting, 50-Hz tetanic stimuli or bursts separated by a 750-ms interval. The response to this pattern of stimulation is two single separated muscle contractions ...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
doi:10.1093/bja/62.3.274
更新日期:1989-03-01 00:00:00
abstract::We have investigated the effect of volatile anaesthetics on protein synthesis and secretion in Hartley male guinea pig liver slices. The slices (250-300 microns thick) were incubated in sealed roller vials containing Krebs-Henseleit buffer at 37 degrees C under 95% oxygen. Volatile anaesthetics were vaporized in the v...
journal_title:British journal of anaesthesia
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abstract::A method for the assessment and management of factors both causing and maintaining a primary metabolic alkalosis is presented. During a 2-year period 65 patients with metabolic alkalosis were treated with saline and potassium chloride infusions. In four patients the alkalosis was refractory and required additional the...
journal_title:British journal of anaesthesia
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abstract::Thirty hypertensive patients scheduled for cholecystectomy or hernia repair under general anaesthesia with thiopentone-fentanyl-nitrous oxide-pancuronium were divided into two groups of 15. One group received metoprolol tablets 200 mg in a slow release form, once daily for at least 2 weeks including the morning of sur...
journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1986-03-01 00:00:00
abstract::Spontaneous movements are sometimes observed of the arm into which rocuronium is administered. In order to assess a possible relationship between these movements and pain, we injected in 10 awake, ASA I patients, in a double-blind manner, both rocuronium 1 ml (10 mg) and 0.9% NaCI 1 ml (placebo), with a 30-s interval ...
journal_title:British journal of anaesthesia
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journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1993-11-01 00:00:00
abstract::The effects of the inhalation of 50% nitrous oxide on somatosensory evoked potentials during a fentanyl-oxygen anaesthetic technique for central nervous system surgery were evaluated. The latency and amplitude of the first cortical wave were obtained using conventional somatosensory techniques with median or posterior...
journal_title:British journal of anaesthesia
pub_type: 杂志文章
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journal_title:British journal of anaesthesia
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journal_title:British journal of anaesthesia
pub_type: 临床试验,杂志文章
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更新日期:1994-01-01 00:00:00
abstract:BACKGROUND:Normalization of plasma fibrinogen levels may be associated with satisfactory haemostasis and reduced bleeding. The aim of this retrospective study was to assess fibrinogen recovery parameters after administration of fibrinogen concentrate (Haemocomplettan P) to patients with diffuse bleeding in cardiovascul...
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pub_type: 杂志文章,多中心研究,随机对照试验
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pub_type: 杂志文章,多中心研究
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doi:10.1093/bja/aeh187
更新日期:2004-08-01 00:00:00
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pub_type: 临床试验,杂志文章,随机对照试验
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abstract::The concentrations of volatile hydrocarbons were studied in breath samples from patients before and after anaesthesia. In patients to whom halothane was administered, there was a significant increase in the concentration of isobutene (from 0.43 +/- 0.09 to 4.66 +/- 2.22 nmol litre-1). There was no change in the concen...
journal_title:British journal of anaesthesia
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