The influence of anaesthesia and surgery on the circadian
rhythm of melatonin.
Karkela J, Vakkuri O, Kaukinen S, Huang WQ, Pasanen M
Department of Anaesthesia and Intensive Care, Tampere University
Hospital, Tampere, Department of Physiology, University
of Oulu, Oulu, and UKK Institute for Health Promotion Research,
Tampere, Finland.
[Medline record in process]
BACKGROUND: Operations are typically associated with sleep
and other circadian rhythm disturbances. The present study
was set up to evaluate the influence of spinal and general
anaesthesia associated with knee surgery on the circadian
rhythm of melatonin, which has sleep inducing properties.
Previously this context has been studied only in some invasive
operations and it might be that general anaesthesia induces
more disturbances on circadian rhythm of melatonin than
operations done with patients awake. METHODS: The circadian
secretion pattern of melatonin was monitored during the
pre- and postoperative evenings, nights and mornings to
clarify possible anaesthesia/surgery-induced changes in
the nocturnal secretion of melatonin and in the phase of
the melatonin rhythm. The study included 20 patients scheduled
for minor orthopaedic operations. The patients were randomised
to receive either spinal or general anaesthesia. Melatonin
was measured from evening and morning saliva samples radioimmunologically.
The nocturnal urine before and after surgery was radioimmunologically
examined for 6-hydroxymelatonin sulphate. RESULTS: Melatonin
secretion evaluated from the saliva samples was significantly
diminished during the first postoperative evening as compared
with that during the preoperative evening (P<0.001).
There was also a significant decline of 26% (P<0.05)
in postoperative 6-hydroxymelatonin sulphate excretion.
There was no significant difference in melatonin secretion
between the spinal and general anaesthesia groups. CONCLUSION:
Our findings suggest that anaesthesia in conjunction with
surgery acutely disturbed the normal circadian rhythm of
melatonin by delaying the onset of nocturnal melatonin secretion.
PMID: 11903069, UI: 21900151
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Acta Anaesthesiol Scand 2002 Jan;46(1):24-9
Effects of nicorandil on myocardial function and metabolism
in the post-ischaemic reperfused heart with or without inhalation
anaesthetics.
Furuya A, Kashimoto S, Kumazawa T
Department of Anaesthesiology, Yamanashi Medical University,
Yamanashi, Japan.
[Medline record in process]
BACKGROUND: Nicorandil, which is an ATP-sensitive K channel
opener, has been reported to protect the ischaemic myocardium.
However, its interaction with inhalation anaesthetics on
the ischaemic myocardium has not been well elucidated. So,
we have investigated whether isoflurane or sevoflurane modify
the effects of nicorandil on cardiac function and metabolism
in the rat heart-lung preparation. METHODS: Animals were
allocated to 4 groups as follows: Control group, no drug;
Nic group, nicorandil; Nic+Iso group, nicorandil and isoflurane;
Nic+Sev group, nicorandil and sevoflurane. Seven minutes
after the start of perfusion, nicorandil was administered
and 10 min after the start of perfusion, the heart was rendered
globally ischaemic for 10 min, and then the heart was reperfused
for 10 min. RESULTS: LVdP/dt max in the Nic group was higher
than those in the other groups. Right atrial pressure in
the Nic+Iso and Nic+Sev groups was significantly higher
than in the Control and Nic groups. Myocardial ATP in the
Nic group was higher than in the other groups. DHBA levels
in the perfusate in the Nic and Nic+Iso groups were lower
than those in the Control and Nic+Sev groups, but those
in the Nic+Sev group were higher than those in the other
groups. CONCLUSIONS: Nicorandil improved post-ischaemic
cardiac function and preserved high-energy phosphates. However,
these beneficial effects of nicorandil were abolished by
the combination with isoflurane or sevoflurane. In addition,
sevoflurane increased hydroxyl radical formation in the
post-ischaemic reperfused heart.
PMID: 11903068, UI: 21900150
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Anesth Analg 2002 Feb;94(2 Suppl):S1-378
Abstracts of the International Anesthesia Research Society
76th Clinical and Scientific Congress. San Diego, California,
USA. March 16-20, 2002.
Publication Types:
Congresses
Overall
PMID: 11902161, UI: 21898831
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Anesth Analg 2002 Mar;94(3):764
Epidural catheter placement using electrical stimulation
test.
Marchant W
Publication Types:
Letter
PMID: 11867417, UI: 21855832
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Anesth Analg 2002 Mar;94(3):764-5
Intrapleural--another approach to sensory phrenic nerve
block.
Cole AF
Publication Types:
Letter
PMID: 11867416, UI: 21855831
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Anesth Analg 2002 Mar;94(3):762-3
Gastroesophageal reflux and aspiration of gastric contents.
Brock-Utne JG
Publication Types:
Letter
PMID: 11867413, UI: 21855828
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Anesth Analg 2002 Mar;94(3):711-6; table of contents
The antinociceptive and histologic effect of sciatic nerve
blocks with 5% butamben suspension in rats.
McCarthy RJ, Kerns JM, Nath HA, Shulman M, Ivankovich
AD
Departments of Anesthesiology and Anatomy, Rush Medical
College at Rush-Presbyterian-St. Luke's Medical Center,
Chicago, Illinois 60611, USA. r-mccarthy@northwestern.edu
Butamben, a lipophilic local anesthetic of the ester class,
produces a differential nerve block of long duration. Epidural
and peripheral nerve blocks with butamben, formulated as
a 5%--10% suspension, result in prolonged analgesia without
significant motor blockade. We evaluated the effect of butamben
sciatic nerve block on antinociception using the rat paw
formalin test, as well as withdrawal latencies to thermal
stimulation, and assessed histologic changes in the nerve.
After right sciatic nerve block with butamben 5% or saline,
responses to intradermal injection of 5% formalin were recorded
in randomly selected groups of 6 animals each on days 1,
2, 5, 10, 21, and 28. In an additional group of 8 thermal
challenges to both hind paws were recorded at 1, 2, 5, 7,
10, 14, 17, 21, and 28 days after right sciatic butamben
5% blocks. Butamben injection decreased the formalin-induced
flinches on days 2, 5, 10, 21 and 28 and decreased thermal
challenges on days 1 through 17. Histologic changes were
minimal. This study demonstrates a prolonged antinociceptive
effect from butamben nerve block to both formalin-induced
nociception and heat hyperalgesia, without an effect on
gross motor function or histologic morphology. IMPLICATIONS:
Butamben 5% nerve blocks produced a prolonged antinociceptive
effect to formalin-induced nociception and heat hyperalgesia,
without significant motor effect or evidence of substantial
histologic changes.
PMID: 11867403, UI: 21855818
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Anesth Analg 2002 Mar;94(3):706-10; table of contents
Ultrasound guidance for the psoas compartment block: an
imaging study.
Kirchmair L, Entner T, Kapral S, Mitterschiffthaler G
Institute of Anatomy and Histology and Department of Neurology,
Leopold-Franzens-University of Innsbruck, Innsbruck, Austria.
lukas.kirchmair@chello.at
We conducted this study to develop an ultrasound-guided
approach to the psoas compartment and to assess its feasibility
and accuracy by means of computed tomography (CT). Two examiners
performed ultrasound-guided approaches at three levels (L2-3,
L3-4, and L4-5) on 10 embalmed cadavers, which were seated
prone. After each needle had been advanced into the psoas
compartment under ultrasound guidance, the positions of
their tips were computed by using two coordinates (A and
B). Subsequently, axial transverse CT scans were made to
verify the ultrasound measurements by using the same coordinates.
In total, 48 approaches were performed (Examiner 1, n =
20; Examiner 2, n = 28). CT revealed that 47 of 48 ultrasound-guided
approaches were performed exactly. In 1 of 48 approaches
(L3-4), the tip of the needle was located posterior to the
psoas muscle. The median differences between ultrasound
and CT coordinates were 0.3 plus minus 0.3 cm for A and
0.2 plus minus 0.3 for B. Kendall's coefficient of concordance
was 0.9 (P < 0.001) between ultrasound and CT measurements
for both coordinates. These results indicate that ultrasound
enables exact needle placement, as proved by CT. We conclude
that ultrasound guidance might be a useful adjunct to increase
the safety and efficacy of the psoas compartment block at
these levels. IMPLICATIONS: We developed an ultrasound-guided
approach to the psoas compartment at the levels L2-3, L3-4,
and L4-5. Feasibility and accuracy were tested on embalmed
cadavers and verified by means of computed tomography. Ultrasound
guidance proved to be feasible and accurate for the performance
of psoas compartment blocks.
PMID: 11867402, UI: 21855817
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Anesth Analg 2002 Mar;94(3):680-5; table of contents
Spinal ropivacaine for cesarean delivery: a comparison
of hyperbaric and plain solutions.
Khaw KS, Ngan Kee WD, Wong M, Ng F, Lee A
Department of Anaesthesia and Intensive Care, The Chinese
University of Hong Kong, Shatin, Hong Kong, China. KimKhaw@cuhk.edu.hk
We compared, in this prospective, randomized, double-blinded
study, the characteristics of spinal anesthesia with plain
and hyperbaric ropivacaine for elective cesarean delivery.
We hypothesized that the addition of glucose would change
the onset, offset, and extent of motor and sensory block
from intrathecal ropivacaine. Forty ASA physical status
I--II women were given 25 mg of either ropivacaine (n =
20) or ropivacaine in 8.3% glucose (n = 20) intrathecally,
via a combined spinal/epidural technique in the right lateral
position. Sensory changes to ice and pinprick and motor
block (Bromage score) were recorded at 2.5-min intervals.
Adequate anesthesia for surgery was achieved in all patients
in the Hyperbaric group, whereas in the Plain group, five
(25%) patients required epidural top-up because of insufficient
rostral spread (P < 0.05). With hyperbaric ropivacaine,
we found the following: higher cephalic spread (median [range]
maximum block height to pinprick, T1 [T4 to C2] versus T3
[T11 to C3], P < 0.001); lower coefficient of variation
of maximum block height (17.7% vs 21.9%); faster onset to
T4 dermatome (mean [SD] 7.7 [4.9] vs 16.4 [14.1] min, P
= 0.015); and faster recovery to L1 (189.0 [29.6] vs 215.5
[27.0] min, P = 0.01). The onset of complete motor block
(9.9 [5.3] vs 13.8 [5.4] min, P = 0.027) and complete recovery
(144.8 [28.4] vs 218.5 [56.8] min, P < 0.001) was also
faster. No neurologic symptoms were found at 24 h. IMPLICATIONS:
We compared hyperbaric and plain ropivacaine for combined
spinal/epidural analgesia in the lateral position in patients
undergoing elective cesarean delivery. Hyperbaric ropivacaine
produced more rapid block with faster recovery and less
requirement for epidural supplementation compared with plain
ropivacaine.
Publication Types:
Clinical trial
Randomized controlled trial
PMID: 11867397, UI: 21855812
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Anesth Analg 2002 Mar;94(3):674-9; table of contents
The primary action of epidural fentanyl after cesarean
delivery is via a spinal mechanism.
Cohen S, Pantuck CB, Amar D, Burley E, Pantuck EJ
Department of Anesthesiology, UMDNJ-Robert Wood Johnson
Medical School, New Brunswick, New Jersey 08903, USA. cohensh@umdnj.edu
We tested the hypotheses that the primary mechanism of
action of epidural fentanyl after cesarean delivery is spinal
and that very small dose epidural bupivacaine with epinephrine
enhances this effect. After elective cesarean delivery,
100 parturients were randomized in a double-blinded design
to four groups. Group I and II patients received a continuous
12 mL/h epidural infusion of bupivacaine 0.015% with epinephrine
1 microg/mL for 48 h and Groups III and IV received a 12
mL/h saline epidural infusion instead. Fentanyl 20 microg/mL
was administered via a patient-controlled analgesia device
either into the epidural infusion (Groups I and IV) or IV
(Groups II and III). When compared to patients receiving
epidural fentanyl, those receiving IV fentanyl required
larger mean infused and total dose of fentanyl (P < 0.0001),
reported more pain (P < 0.001), and had a more frequent
incidence of excessive sedation (P < 0.01), nausea (P
< 0.01), and vomiting (P < 0.01). Plasma concentrations
of fentanyl were larger for Group II and III than for Groups
I and IV (P < 0.001) at 24 and 48 h. Our results support
the hypothesis that the primary mechanism of analgesia of
epidural fentanyl after cesarean delivery is spinal. Our
data also show that the total required dose of epidural,
but not IV, fentanyl is reduced by very small dose epidural
bupivacaine and epinephrine (Group I versus Group IV, P
< 0.02 and Group II vs Group III, not significant). IMPLICATIONS:
Fentanyl administered epidurally to parturients after cesarean
delivery has a primarily spinal mechanism of action and
this effect is enhanced by very small dose epidural bupivacaine
and epinephrine.
PMID: 11867396, UI: 21855811
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Anesth Analg 2002 Mar;94(3):560-4; table of contents
Fast-track eligibility of geriatric patients undergoing
short urologic surgery procedures.
Fredman B, Sheffer O, Zohar E, Paruta I, Richter S, Jedeikin
R, White PF
Departments of Anesthesiology and Intensive Care and Urology,
Meir Hospital, Kfar Saba, Israel. bdfgls@netvision.net.il
Our primary objective was to assess the feasibility of
geriatric patients (>65 yr) bypassing the postanesthesia
care unit (PACU) after ambulatory surgery. A secondary objective
was to compare recovery profiles when using three different
maintenance anesthetics. Ninety ASA physical status I--III
consenting outpatients (>65 yr) undergoing short urologic
procedures were randomly assigned to one of three anesthetic
treatment groups. After a standardized induction with fentanyl
and propofol, anesthesia was maintained with propofol (75-150
microg center dot kg(-1) center dot min(-1) IV), isoflurane
(0.7%-1.2% end tidal), or desflurane (3%-6% end tidal),
in combination with nitrous oxide 70% in oxygen. In all
three groups, the primary anesthetic was titrated to maintain
an electroencephalographic-bispectral index value of 60-65.
Recovery times, postanesthesia recovery scores, and therapeutic
interventions in the PACU were recorded. Although emergence
times were similar in the three groups, the time to achieve
a fast-track discharge score of 14 was significantly shorter
in patients receiving desflurane compared with propofol
and isoflurane (22 +/- 23 vs 33 +/- 25 and 44 +/- 36 min,
respectively). On arrival in the PACU, a significantly larger
percentage of patients receiving desflurane were judged
to be fast-track eligible compared with those receiving
either isoflurane and propofol (73% vs 43% and 44%, respectively).
The number of therapeutic interventions in the PACU was
also significantly larger in the Isoflurane group when compared
with the Propofol and Desflurane groups (21 vs 11 and 7,
respectively). In conclusion, use of desflurane for maintenance
of anesthesia should facilitate PACU bypass ("fast-tracking")
of geriatric patients undergoing short urologic procedures.
IMPLICATIONS: Geriatric outpatients undergoing brief urologic
procedures more rapidly achieve fast-tracking discharge
criteria after desflurane (versus isoflurane and propofol)
anesthesia. Use of isoflurane was also associated with an
increased need for nursing interventions in the early recovery
period compared with desflurane and propofol.
Publication Types:
Clinical trial
Randomized controlled trial
PMID: 11867375, UI: 21855790
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Br Dent J 2001 Dec 22;191(12):686-8
Referrals to a secondary care dental clinic for anxious
adult patients: implications for treatment.
McGoldrick P, Levitt J, de Jongh A, Mason A, Evans D
University of Dundee Dental School. p.m.mcgoldrick@dundee.ac.uk
OBJECTIVES: This study aimed to determine the methods suggested
by general dental practitioners for management of patients
with dental anxiety whom they refer to a dental hospital
setting, the treatment modalities eventually used with such
patients and the relationship between patients previous
sedation experience and the current referral. METHODS: Consecutive
referral letters (n = 125) for management of patients with
dental anxiety over a 16 month period were analysed for
content, including reason for referral and suggested treatment
modalities. Patient records were also examined for previous
sedation experience. RESULTS: From 115 referrals eligible
for analysis, the dentists requested management of anxiety
using pharmacological methods in 113 referrals with only
two referrals mentioning psychologically-based treatments.
In secondary care, 29% of the adult referrals opted for
dental treatment using psychological techniques alone. CONCLUSIONS:
In spite of the efficacy of psychological treatments for
dental anxiety, primary and secondary care dentists appear
not to be suggesting or promoting their use for patients
with dental anxiety. Further research into the availablility
of, and barriers to accessing the full range of services
for those with dental anxiety, including patient perspectives,
needs to be undertaken.
PMID: 11792115, UI: 21649612
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Br J Anaesth 2001 Nov;87(5):806
Perioperative bradycardia.
Wildsmith J A
Publication Types:
Letter
PMID: 11878545, UI: 21867321
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Br J Anaesth 2001 Nov;87(5):803-4
Is it safe to artificially ventilate a paralysed patient
through a laryngeal mask?
MacKillop A
Publication Types:
Letter
PMID: 11878542, UI: 21867318
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Br J Anaesth 2001 Nov;87(5):784-7
Grand mal convulsion and plasma concentrations after intravascular
injection of ropivacaine for axillary brachial plexus blockade.
Muller M, Litz R J, Huler M, Albrecht D M
Department of Anaesthesiology and Intensive Care Medicine,
Carl Gustav Carus University Hospital, Dresden, Germany.
We report a patient to whom ropivacaine 1.1 mg kg(-1) was
administered for brachial plexus blockade and who developed
grand mal convulsions because of inadvertent i.v. injection.
No symptoms of cardiovascular toxicity occurred. Venous
blood samples were taken 15, 45, 75 and 155 min after the
injection. The measured total plasma concentrations of ropivacaine
were 3.3, 1.6, 1.2 and 1.0 mg litre(-1) respectively. Initial
plasma concentration after the end of the injection period
was estimated at 5.75 mg litre(-1) using a two-compartment
pharmacokinetic model.
Publication Types:
Review
Review of reported cases
PMID: 11878534, UI: 21867310
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Br J Anaesth 2001 Nov;87(5):778-80
Effects of the auditory stimuli of an auditory evoked
potential system on levels of consciousness, and on the
bispectral index.
Absalom A R, Sutcliffe N, Kenny G N
University Department of Anaesthesia, Alexandra Parade,
Glasgow Royal Infirmary, UK.
Investigators in the field of depth of anaesthesia monitoring
sometimes measure the auditory evoked potential (AEP) and
the Bispectral Index (BIS) concurrently. However, the auditory
stimuli required to generate an AEP may increase the level
of consciousness, and cause an increase in the BIS. They
may also alter the BIS by producing phase-locked harmonics
in the surface electroencephalogram. The aim of this study
was to determine if AEP stimuli have clinically significant
effects on levels of consciousness and BIS values during
sedation and general anaesthesia. Ten healthy adult patients
were studied by measuring and recording the BIS for 6 epochs
of 5 min each. The first 3 epochs took place during steady-state
sedation, during which time the Observer's Assessment of
Awareness/Sedation (OAA/S) score was also measured. The
second 3 epochs took place during steady-state anaesthesia.
During alternate epochs, patients were subjected to the
auditory stimuli generated by an AEP system. The auditory
stimuli were not associated with a change in BIS values
(during sedation and anaesthesia) or OAA/S scores (sedation).
PMID: 11878532, UI: 21867308
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Br J Anaesth 2001 Nov;87(5):743-7
Intrathecal ropivacaine for total hip arthroplasty: double-blind
comparative study with isobaric 7.5 mg ml(-1) and 10 mg
ml(-1) solutions.
McNamee D A, Parks L, McClelland A M, Scott S, Milligan
K R, Ahlen K, Gustafsson U
Department of Anaesthetics and Intensive Care Medicine,
The Queen's University of Belfast, UK.
This study was designed to evaluate the efficacy and safety
of two concentrations of intrathecal ropivacaine, 7.5 and
10 mg ml(-1), in patients undergoing total hip arthroplasty.
One hundred and four patients, ASA I-III, were randomized
to receive an intrathecal injection of one of two concentrations
of isobaric ropivacaine. Group 1 (n=51) received 2.5 ml
of 7.5 mg ml(-1) ropivacaine (18.75 mg). Group 2 (n=53)
received 2.5 ml of 10 mg ml(-1) ropivacaine (25 mg). The
onset and offset of sensory block at dermatome level T10,
maximum upper and lower spread of sensory block and the
onset, intensity and duration of motor block were recorded,
as were safety data. Onset of motor and sensory block was
rapid with no significant differences between the two groups.
The median time of onset of sensory block at the T10 dermatome
was 2 min (range 1-25 min) in Group 1 and 2 min (range 1-21
min) in Group 2. The median duration of sensory block at
the T10 dermatome was 3.0 h (range 0.5-4.2 h) in Group 1
and 3.4 h (1.1-5.9 h) in Group 2 (P=0.002). The median duration
of complete motor block was significantly prolonged (P<0.05)
in Group 2 compared with Group 1 (1.9 vs 1.2 h, respectively).
Anaesthetic conditions were excellent in all but one patient.
Intrathecal ropivacaine, in doses of 18.75 and 25 mg, was
well tolerated and provided effective anaesthesia for total
hip arthroplasty.
Publication Types:
Clinical trial
Randomized controlled trial
PMID: 11878526, UI: 21867302
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Br J Anaesth 2001 Nov;87(5):718-26
Comparative efficacy and safety of remifentanil and fentanyl
in 'fast track' coronary artery bypass graft surgery: a
randomized, double-blind study.
Mollhoff T, Herregods L, Moerman A, Blake D, MacAdams
C, Demeyere R, Kirno K, Dybvik T, Shaikh S
This multi-centre, parallel group, randomized, double-blind
study compared the efficacy and safety of high-dose remifentanil
administered by continuous infusion with an intermittent
bolus fentanyl regimen, when given in combination with propofol
for general anaesthesia in 321 patients undergoing elective
coronary artery bypass graft surgery. A significantly lower
proportion of the patients who received remifentanil had
responses to maximal sternal spread (the primary efficacy
endpoint) compared with those who received fentanyl (11%
vs 52%; P<0.001). More patients who received remifentanil
responded to tracheal intubation compared with those who
received fentanyl (24% vs 9%; P<0.001). However, fewer
patients who received remifentanil responded to sternal
skin incision (11% vs 36%; P<0.001) and sternotomy (14%
vs 60%; P <0.001). Median time to extubation was longer
in the subjects who received remifentanil than for those
who received fentanyl (5.1 vs 4.2 h; P=0.006). There were
no statistically significant differences between the two
groups in the times for transfer from intensive care unit
or hospital discharge but time to extubation was significantly
longer in the remifentanil group. Overall, the incidence
of adverse events was similar but greater in the remifentanil
group with respect to shivering (P<0.049) and hypertension
(P<0.001). Significantly more drug-related adverse events
were reported in the remifentanil group (P=0.016). There
were no drug-related adverse cardiac outcomes and no deaths
from cardiac causes before hospital discharge in either
treatment group.
Publication Types:
Clinical trial
Multicenter study
Randomized controlled trial
PMID: 11878522, UI: 21867298
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Br J Anaesth 2001 Nov;87(5):711-7
Use of multi-plane transoesophageal echocardiography in
visualization of the main hepatic veins and acquisition
of Doppler sonography curves. Comparison with the transabdominal
approach.
Meierhenric R, Gauss A, Georgieff M, Schutz W
Department of Anaesthesiology, University of Ulm, Germany.
The role of multi-plane transoesophageal echocardiography
(TOE) in the visualization of the three main hepatic veins
and acquisition of Doppler sonography curves has not been
established. We have studied this diagnostic option of TOE
in 34 patients during general anaesthesia. The findings
were compared with the results of conventional transabdominal
sonography (TAS). Using TOE, each of the three main hepatic
veins could be visualized in all patients. In contrast,
TAS allowed adequate two-dimensional visualization of the
right, middle, and left hepatic vein in only 97%, 85%, and
61% of the patients, respectively. Adequate Doppler tracings
of the right and middle hepatic vein could be obtained in
100% and 97% of the patients by TOE and in 91% and 50% of
the patients by TAS. Doppler tracings of the left hepatic
vein could only be acquired in 18% of the patients by TOE,
but in 47% of the patients by TAS. As blood flow may be
calculated from the diameter of the vessel, velocity time
integral of the Doppler curve and heart rate, TOE may provide
an interesting non-invasive tool to monitor blood flow in
the right and middle hepatic vein.
Publication Types:
Evaluation studies
PMID: 11878521, UI: 21867297
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Neurosci Lett 2002 Jan 25;318(2):85-8
Effect of electroacupuncture on the stress-induced changes
in brain-derived neurotrophic factor expression in rat hippocampus.
Yun SJ, Park HJ, Yeom MJ, Hahm DH, Lee HJ, Lee EH
Graduate School of East-West Medical Science, Kyung Hee
University, 1 Seochun, Yong-In 449-701, South Korea.
Stress induces neuronal atrophy and death especially in
the hippocampus. Alterations in the expression of neurotrophic
factors are implicated in stress-induced hippocampal degeneration.
In the hippocampus, stress decreases brain-derived neurotrophic
factor (BDNF) mRNA levels. In oriental medicine, acupuncture
has long been employed as a treatment of numerous disorders.
The objective of this study was to examine whether electroacupuncture
(EA) stimulation can influence BDNF expression in the hippocampus
of rats exposed to immobilization stress. Rats were immobilized
in plastic bags, and then subjected to EA at ST36 Zusanli.
After treatment, the animals were decapitated and the hippocampi
were rapidly removed and processed for RNA isolation and
reverse transcription. Real-time polymerase chain reaction
analysis showed that EA stimulation significantly restored
BDNF mRNA expression declined by immobilization stress.
The results suggest that EA may relieve neuropathological
effects of stress by modulating neurotrophic factor expression.
PMID: 11796192, UI: 21655591
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Paediatr Anaesth 2002 Mar;12(3):287
Does internal jugular vein cannulation in infants require
a SMART needle rather than a smart anaesthetist?
Reich A, Booke M
Klinik und Poliklinik fr Ansthesiologie und Operative Intensivmedizin
der Westflischen Wilhelms-Universitt Mnster, Germany.
[Medline record in process]
PMID: 11903947, UI: 21901924
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Paediatr Anaesth 2002 Mar;12(3):278-83
Anaesthetic management of a patient with microvillus inclusion
disease for intestinal transplantation.
Goldman LJ, Santamaria ML, Gamez M
Department of Paediatric Anaesthesiology, La Paz Children's
University Hospital, Madrid, Spain, Department of Paediatric
Surgery, La Paz Children's University Hospital, Madrid,
Spain.
[Medline record in process]
We report the anaesthetic management of a 3-year-old-child
with microvillus inclusion disease undergoing isolated small
bowel transplantation. He required long-term total parenteral
nutrition which was complicated with numerous episodes of
catheter related sepsis. This resulted in thrombosis of
the major blood vessels which critically restricted vascular
access available for intravenous nutrition, becoming a life-threatening
condition for the patient. Haemodynamic, respiratory parameters
and urinary output were well preserved throughout the procedure.
Besides a transitory increase in potassium following graft
revascularization, biochemical changes were small. Anaesthetic
management included comprehensive preoperative assessment,
central venous angiography to depict accessibility of central
and peripheral veins, assurance of additional vascular access
through the intraoperative catheterization of the left renal
vein, perioperative epidural analgesia and preservation
of splanchnic perfusion to ensure implant viability.
PMID: 11903944, UI: 21901921
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Paediatr Anaesth 2002 Mar;12(3):272-7
Therapeutic applications of regional anaesthesia in paediatric-aged
patients.
Tobias JD
Departments of Child Health and Anesthesiology, The University
of Missouri, Columbia, Missouri, USA.
[Medline record in process]
PMID: 11903943, UI: 21901920
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Paediatr Anaesth 2002 Mar;12(3):261-6
A survey of parental satisfaction during parent present
induction of anaesthesia for children undergoing cardiovascular
surgery.
Odegard KC, Modest SA, Laussen PC
Department of Anesthesia, Children's Hospital, Boston and
Harvard Medical School, Boston, MA, USA, Cardiovascular
Nursing, Children's Hospital, Boston, MA, USA.
[Medline record in process]
Methods: To assess parental reaction and possible complications
of parent present induction (PPI) for children undergoing
cardiovascular surgery, the parents of 183 patients were
provided with a questionnaire to complete after they had
participated in PPI. Questions included: prior experience
with PPI, which member of the staff initiated the plan for
PPI, parental role in the process, how prepared parents
felt, and overall satisfaction. Results: PPI was successfully
performed in the 183 patients surveyed. No parent was asked
to leave the operating room because of respiratory or haemodynamic
complications; 77.6% of the parents had no prior experience
with PPI; however, 91.8% were aware of their role in the
operating room, 94.5% were aware how their child would be
anaesthetized and 96.7% felt prepared for their role and
believed that this was a positive experience for themselves
and their child. Conclusions: This prospective survey demonstrated
a high level of parental acceptance and satisfaction for
PPI in children undergoing cardiovascular surgery, with
a low incidence of untoward events, despite the underlying
congenital heart disease. Further work is necessary to objectively
characterize anxiety levels associated with induction of
anaesthesia in this group of patients and parents.
PMID: 11903941, UI: 21901918
Paediatr Anaesth 2002 Mar;12(3):243-247
Management of general anaesthesia in infants and children
with a history of idiopathic pulmonary haemorrhage.
Tripi PA, Thomas S, Dearborn DG
Department of Anesthesiology, University Hospitals of Cleveland,
Cleveland, OH, USA, Rainbow Babies and Children's Hospital,
Case Western Reserve University School of Medicine, Cleveland,
OH, USA, Division of Paediatric Pulmonary Disease, Rainbow
Babies and Children's Hospital, Case Western Reserve University
School of Medicine, Cleveland, OH, USA.
[Record supplied by publisher]
Background: Idiopathic pulmonary haemorrhage in infants
is a rare disorder that is endemic to metropolitan Cleveland,
Ohio. Since 1993, 32 infants with this disorder were diagnosed
and treated at our institution, one of them after developing
pulmonary haemorrhage during induction of anaesthesia. Of
this population, five patients have undergone a total of
10 general anaesthetics at some time after the initial diagnosis
of pulmonary haemorrhage. Methods: We performed a retrospective
chart review of these cases to identify whether any risk
factors for anaesthesia-related morbidity were present,
to review the anaesthetic technique and to identify morbidity
related to residual underlying pulmonary disease. Results:
No patients experienced any anaesthesia related complication
nor any perioperative respiratory problem. Conclusions:
These data may be useful to anaesthesiologists in other
geographical locations since this disorder has been reported
in other parts of the USA, and presumably may exist in other
areas of the world.
PMID: 11903938
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Paediatr Anaesth 2002 Mar;12(3):205-19
Scaling for size: some implications for paediatric anaesthesia
dosing.
Anderson BJ, Meakin GH
Departments of Anaesthesia and Intensive Care, Auckland
Children's Hospital, Auckland, New Zealand, Department of
Anaesthesia, Royal Manchester Children's Hospital, Pendlebury,
Manchester, UK.
TUTTO
IL MATERIALE CONTENUTO IN QUESTO SITO E' STATO REPERITO IN RETE. GLI AUTORI
NON SI ASSUMONO RESPONSABILITA' PER
DANNI A TERZI DERIVATI DA USO IMPROPRIO O ILLEGALE DELLE INFORMAZIONI
RIPORTATE O DA ERRORI RELATIVI AL LORO CONTENUTO.