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排序方式: 共有110条查询结果,搜索用时 15 毫秒
71.
Dhonneur G Kirov K Motamed C Amathieu R Kamoun W Slavov V Ndoko SK 《British journal of anaesthesia》2007,99(3):376-379
Background: Because the intensity of neuromuscular block at the diaphragm(DIA) is indirectly assessed, the electromyographic measurementsof the DIA (DIAEMG) from surface electrodes were related toinformation provided by visual estimation of neuromuscular transmissionat the adductor pollicis (AP) and the corrugator supercilii(CSC) during recovery from vecuronium block. Methods: Twelve adult patients were studied during balanced anaesthesia.After induction of anaesthesia and tracheal intubation withoutneuromuscular blocking agent, supramaximal stimulations wereapplied to phrenic, ulnar and facial nerves. During recoveryfrom vecuronium 0.1 mg kg–1 an independent observer blindedto DIAEMG counted visually detectable train-of-four (TOF) atCSC (TOFCSC) and post-tetanic AP (PTCAP) responses. Times torecovery of PTCAP = 1, 5, <10 and >10, and TOFCSC = 1–4responses were related to DIAEMG. Values are means (SD). Results: Reappearance of the first response to PTCAP occurred significantly(P < 0.05) earlier and for a lower recovery of DIAEMG thanthat of TOFCSC [24 (8) min vs 33 (9) min, and 10 (10)% vs 25(8)%, respectively]. With PTCAP 5 response, DIAEMG recoverywas 21 (11)%. Recovery of TOFCSC = 1 and 2 coincided with DIAEMGrecovery of 25 (8)% and 47 (9)%, respectively. Conclusions: PTCAP may better reflect early recovery of vecuronium-inducedDIA paralysis than TOFCSC. The findings suggested that PTCAP 5 warranted deep neuromuscular block of the DIA. 相似文献
72.
Gospodinka Prakova Pavlina Gidikova Emil Slavov Gergana Sandeva Spaska Stanilova 《Central European Journal of Medicine》2009,4(1):104-109
The study was conducted among 92 male workers, divided into two groups depending on workplace and level of inorganic dust
containing free crystalline SiO2 in the work environment, and 43 healthy workers without exposure to dust aerosols. The measured inhalable and respirable
dust concentrations, as well as the concentration of free crystalline silica (FCS) in the respirable fraction were different
for the two groups, but the percentage of free crystalline silica in the respirable fraction was almost identical. Significantly
higher neopterin levels were found in workers exposed to dust, compared to the control group: 12.72 nmol/L and 6.32 nmol/L
respectively (p<0.05). No significant difference was found between serum neopterin levels in both groups of the exposed workers.
Among the groups with different length of service, a statistically higher neopterin level was evident only in the workers
with length of service less than 10 years (p<0.05). The correlation analysis did not find a significant dependence of neopterin
levels on the age of the studied workers or on the duration of smoking in packet years. The difference between neopterin levels
in smokers and non-smokers was nonsignificant. The results obtained show that increased neopterin levels in the exposed workers
are not influenced by individual features, duration and level of exposure to inorganic dust, but mostly by the presence of
FCS in the respirable fraction. 相似文献
73.
74.
Duplication of the urethra is a rare congenital anomaly, usually found in children and adolescents. The authors present a rare case of urethral duplication, presenting in a 58-yr-old man, with symptoms of bladder outlet obstruction. 相似文献
75.
Danon disease is a rare lysosomal disorder. It is due to deficiency of lysosomal-associated protein-2. In human LAMP-2 gene is located at chromosome region Xq24. Danon disease is characterized by hypertrophic cardiomyopathy, skeletal myopathy, mental retardation and retinopathy. To date, the morphological characterization of Danon disease has been limited to endomyocardial and skeletal muscle biopsies. In the current study we demonstrated that electron microscopy of a more accessible tissue, skin biopsies, is a useful method in the diagnosis of Danon disease. 相似文献
76.
N. Nijs P. Duvaldestin V. Slavov G. Dhonneur 《Acta anaesthesiologica Scandinavica》1998,42(10):1175-1179
Background: The duration of action of muscle relaxants is poorly correlated to the rate of decay of their plasma concentration. The plasma concentration of mivacurium may rapidly decrease below its active concentration because of the extensive hydrolysis of mivacurium. By inflating a tourniquet on one upper limb for 3 min after the administration of atracurium, mivacurium or vecuronium, we studied the influence of the initial decline of their plasma concentration on their effect. Methods: In 50 patients anaesthetised with thiopental, isoflurane and fentanyl, the effect of bolus doses of 0.15 or 0.25 mg . kg?1 mivacurium (MIV 15, MIV 25), 0.3 or 0.5 mg . kg?1 atracurium (ATR 30, ATR 50) and 0.06 or 0.1 mg . kg?1 vecuronium (VEC 06, VEC 10) were measured on both arms (evoked response of the adductor pollicis to train-of-four stimulation every 12 s), a tourniquet being applied on one arm just before and during 3 min after the muscle relaxant bolus. Results: Tourniquet inflation of 3 min almost abolished the neuromuscular effect of mivacurium. In the vecuronium groups and in the ATR 50 group, tourniquet inflation did not modify the maximum degree of depression of the twitch response. Also, the duration of action of vecuronium was unaffected by the tourniquet. In the ATR 30 group, times to return of the twitch response to 25% (duration 25%) and 75% (duration 75%) of control response were significantly shorter in the cuffed arm, 23 min vs 27 min, and 41 min vs 45 min, respectively. In the ATR 50 group, only duration 25% was significantly shorter in the cuffed arm (41 min vs 45 min). Conclusion: The results suggest that the rate of decline of the plasma concentration of mivacurium is so rapid, that a very low and almost clinically ineffective concentration is present as soon as 3 min after its administration. The results also indicate that the recovery from a mivacurium-induced neuromuscular blockade is not influenced by the rate of decay of its plasma concentration in patients with genotypically normal plasma cholinesterase. 相似文献
77.
Taylor MR Ku L Slavov D Cavanaugh J Boucek M Zhu X Graw S Carniel E Barnes C Quan D Prall R Lovell MA Mierau G Ruegg P Mandava N Bristow MR Towbin JA Mestroni L;Familial Cardiomyopathy Registry 《Journal of human genetics》2007,52(10):830-835
X-linked dilated cardiomyopathy (XLCM) was first described in 1987 and associated with dystrophin gene (DMD) mutations a decade later in one of the original two families. Here we report long-term follow-up of the second family (XLCM-2),
for which a DMD mutation was never found. Analysis of the lysosome-associated membrane protein-2 (LAMP-2) gene detected a novel mutation, confirming a diagnosis of Danon disease. The broad phenotype in this family included dilated
and hypertrophic cardiomyopathy, cardiac pre-excitation, skeletal myopathy with high serum creatine kinase, cognitive impairment
(in males), and a pigmentary retinopathy in affected females. Cardiac biopsy specimens showed extensive vacuolar changes in
an affected adult male. Remarkably, the skeletal muscle biopsy in a 13-month-old mutation-carrying male showed no vacuolization
by standard histology. We conclude that XLCM may be the presenting sign of Danon disease and, in the presence of a familial
history of HCM, pre-excitation, skeletal muscle involvement and retinal pigmentary dystrophy should prompt LAMP-2 clinical testing. Furthermore, the absence of vacuolar myopathy in biopsies from young patients may not exclude Danon disease.
Supported by American Heart Association (0150453N), Muscular Dystrophy Association (PN0007-056) and NIH (1RO1HL69071-01 and
1K23Hl67915-01A1). 相似文献
78.
Stanilova SA Karakolev ZT Dimov GS Dobreva ZG Miteva LD Slavov ES Stefanov CS Stanilov NS 《Intensive care medicine》2005,31(3):401-407
Objective To evaluate viability of isolated peripheral blood mononuclear cells (PBMC) and production of cytokines in vitro after stimulation as prognostic factors for survival in sepsis patients.Design Prospective study of the biological response of PBMC in the onset of severe sepsis.Setting Research laboratory of molecular biology and immunology and university hospital ICU, Faculty of Medicine, Trakia University.Patients Twenty-three patients meeting the criteria for severe sepsis, and 14 control subjects.Interventions Isolated PBMC were stimulated in vitro with: C3-binding glycoprotein (C3bgp; 30 µg), lipopolysaccharide (30 µg), phytohemagglutinin (20 µg), pokeweed mitogen (30 µg), and dexamethasone (500 µg).Measurements and results We measured the levels of interleukins (IL) 6, 10, and 12 in culture supernatants. Stimulation with C3bgp and phytohemagglutinin led to significantly lower PBMC secretion of IL-6 in nonsurvivors than in survivors and healthy donors. Stimulation with C3bgp, lipopolysaccharide, and pokeweed mitogen considerably reduced IL-12 production in nonsurvivors. Stimulation with lipopolysaccharide and pokeweed mitogen caused immune cells in nonsurvivors to produce higher levels of IL-10 than in survivors. Survival of PBMC reduced viability for nonsurvivors PBMC, both spontaneously and as induced by lipopolysaccharide or pokeweed mitogen.Conclusions The viability of PBMC at the onset of sepsis and enhanced production of IL-12 and diminished production of IL-10 after stimulation with all stimuli used may be a favorable prognostic factor in sepsis. 相似文献
79.
Ivan Chakarov Tatyana Vlaykova Emil Slavov Rumen Marinov Petrana Chakarova 《Comparative clinical pathology》2014,23(3):725-733
This study aims to evaluate the serum pro-hepcidin level in β-thalassemia patients, to clarify its relation with serum level of ferritin and to assess the possible role of null polymorphisms of glutathione S-transferase genes, GSTM1 and GSTT1, for susceptibility to β-thalassemia and myocardial siderosis. The serum level of pro-hepcidin was assessed in 31 patients [16 children (52 %) and 15 young adults (48 %)] with β-thalassemia and nine healthy individuals [four children (44 %) and five young adults (56 %)] applying ELISA method. Genotyping for the null polymorphisms of GSTM1 and GSTT1 was performed successfully by multiplex PCR in 17 patients and in 40 healthy individuals, which were enrolled in the case–control study for assessment of the role of these polymorphisms as risk factors for β-thalassemia. The mean serum level of pro-hepcidin in patients did not differ significantly (159.12?±?70.12 ng/ml) from that in controls (144.64?±?53.30 ng/ml). We found a significant positive correlation with the serum ferritin (R?=?0.371, p?=?0.039). In addition, there was an association between the serum pro-hepcidin and the type of chelating therapy. The frequency of GSTT1 null genotypes was significantly higher in patients than in controls (0.29 vs. 0.07, p?=?0.025). We observed tendencies for a higher serum ferritin and lower value of ejection fraction of the left ventricle (EFLV) of the patients carrying GSTT1 null genotypes than those with non-null GSTT1 genotypes. The serum levels of pro-hepcidin is not the most precise markers of iron overload and organ dysfunction, but it could be considered as a relatively good alternative of the serum ferritin as an index of iron stores. In addition, we suggest that GSTT1 null genotype could be considered as a predisposing factor for β-thalassemia, myocardial siderosis, and dysfunction in patients with this disease. 相似文献
80.