scholarly journals Japanese Black Calf with Growth Retardation Showing Prolonged Active Partial Thromboplastin Time

2005 ◽  
Vol 58 (12) ◽  
pp. 820-822 ◽  
Author(s):  
Masaki TAKASU ◽  
Eri TAKEDA ◽  
Naohito NISHII ◽  
Yasunori OHBA ◽  
Sadatoshi MAEDA ◽  
...  
Author(s):  
Subhasree Pradhan ◽  
A. Thangavelu ◽  
A. Srithar ◽  
T.M.A. Senthilkumar ◽  
J. John Kirubaharan

The aim of this study was to investigate the effect of isoflurane (ISO) and sevoflurane (SEVO) anesthesia on coagulation parameters in dogs. A total of 12 dogs were used in the study in two groups as ISO(n = 6) and SEVO(n = 6), which were brought to the clinic for ovariohysterectomy. Premedication was performed by the intravenous administration of 0.3 mg/kg midazolam, followed by 5 mg/kg intravenous bolus propofol infusion. This was followed by 1.5% ISO administration in the ISO group and 2% sevoflurane administration in the SEVO group for anesthesia maintenance. Before anesthesia, prothrombin time (PT), active partial thromboplastin time (APTT), thrombin time (TT), and fibrinogen (FIB) level were measured at the 0th minute before anesthesia, at the 15th and 30th minutes during anesthesia, and at the 0th minute and the 1st hour after anesthesia. It was observed that the changes in TT, PT, APTT, and FIB level with time were not significant in the ISO and SEVO groups. It was determined that the changes in TT between the measurements in groups at the 30th minute during anesthesia and 0th minute after anesthesia were statistically significant (P less than 0.05)


Author(s):  
F. Mehmet Birdane ◽  
Musa Korkmaz ◽  
Cenker Caðrý Cingi ◽  
Zülfükar Kadir Saritaº

The aim of this study was to investigate the effect of isoflurane (ISO) and sevoflurane (SEVO) anesthesia on coagulation parameters in dogs. A total of 12 dogs were used in the study in two groups as ISO(n = 6) and SEVO(n = 6), which were brought to the clinic for ovariohysterectomy. Premedication was performed by the intravenous administration of 0.3 mg/kg midazolam, followed by 5 mg/kg intravenous bolus propofol infusion. This was followed by 1.5% ISO administration in the ISO group and 2% sevoflurane administration in the SEVO group for anesthesia maintenance. Before anesthesia, prothrombin time (PT), active partial thromboplastin time (APTT), thrombin time (TT), and fibrinogen (FIB) level were measured at the 0th minute before anesthesia, at the 15th and 30th minutes during anesthesia, and at the 0th minute and the 1st hour after anesthesia. It was observed that the changes in TT, PT, APTT, and FIB level with time were not significant in the ISO and SEVO groups. It was determined that the changes in TT between the measurements in groups at the 30th minute during anesthesia and 0th minute after anesthesia were statistically significant (P less than 0.05)


2005 ◽  
Vol 284-286 ◽  
pp. 713-716
Author(s):  
Akiyoshi Osaka ◽  
Tomohiko Yoshioka ◽  
Takeshi Yabuta ◽  
Kanji Tsuru ◽  
Satoshi Hayakawa

Organic-inorganic hybrids involving Ti-O bonds were coated on stainless-steel (SUS316L)substrates. Tetraisopropoxide and titanium methacrylate triisopropoxide were employed as the major starting chemicals to provide TiO2-polydimethylsiloxane (PDMS) layers or organotitanium molecular thin layers, respectively. Fourier transform infrared spectra indicated that each layer contained Ti-O bonds in their structure. The obtained hybrid layers had little effects on the blood-clotting times such as active partial thromboplastin time and prothrombin time. In addition, the number of adhered platelet on the TiO2-PDMS layers depended on the composition, while the organotitanium molecular thin layers suppressed fibrinogen adsorption compared with coating-free SUS 316L substrate.


1989 ◽  
Vol 61 (02) ◽  
pp. 243-245 ◽  
Author(s):  
J G Thornton ◽  
B J Molloy ◽  
P S Vinall ◽  
P R Philips ◽  
R Hughes ◽  
...  

SummaryA panel of haemostatic tests was perfomed on 400 primiparous women at 28 weeks to test whether one or more could predict the development of pregnancy complications. Fifteen women subsequently developed pre-eclampsia with significant proteinuria and 13 delivered growth retarded infants. There were no significant differences between mothers in the pre-eclampsia group and 22 randomly selected controls. A stepwise logistic discriminant analysis of the data did not produce a significant model. In the growth retarded group only beta thromboglobulin levels were significantly lower than in the controls (p <0.05), although in the logistic discriminant analysis the inclusion of both beta thromboglobulin and fibrin degradation products led to a borderline significant improvement in fit of the model. We conclude that the haemostatic variables studied are not significantly changed at 28 weeks nor clinically useful predictors of either pre-eclampsia or fetal growth retardation.


1990 ◽  
Vol 63 (01) ◽  
pp. 016-023 ◽  
Author(s):  
A M H P van den Bessekaar ◽  
J Meeuwisse-Braun ◽  
R M Bertina

SummaryFive different APTT reagents, two amidolytic anti-ITa assays, one amidoiytic anti-Xa assay, and one coagulometric anti-Xa/ anti-IIa assay were used to assess the effect of heparin in patients treated for venous thromboembolic disease. Good correlations were observed between lug-transformed APYE> determined with the various reagents (correlation coefficients: 0.92-0.96).Nevertheless there were important differences in the slopes of the lines of relationship between the APTT reagents.Good correlations were observed between the anti-Xa and anti-IIa assay results (correlation coefficients: 0.92-0.97). However, the amidolytic anti-Xa activity was significantly higher (p <0.001) than the two amidolytic anti-IIa activities. Less good correlations were observed between the log-transformed APTTs and the anti-Xa or anti-IIa activities (correlation coefficients: 0.64-0.78). The correlations were improved by transforming the APTT into APTT-ratio, i.e. the ratio of the patient’s APTT to the same patient’s APTT after removal of heparin from the plasma sample by means of ECTEOLA-cellulose treatment. The correlation coefficients of log (AFTT-ratio) with anti-Xa or anti-IIa ranged from 0.76 to 0.87.For both APTT and amidolytic heparin assay, the response to in vitro heparin was different from the response to ex vivo heparin.Therefore, equivalent therapeutic ranges should be assessed by using ex vivo samples rather than in vitro heparin. Because of the response differences between the APTT reagents, it is not adequate to define a therapeutic range for heparin therapy without specification of the reagent.


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