In vivo study of the complement system during infusion of radiographic contrast media

1986 ◽  
Vol 77 (5) ◽  
pp. 690-692 ◽  
Author(s):  
M GARDINALI ◽  
M CICARDI ◽  
D FRANGI ◽  
M FRANZINELLI ◽  
F GATTONI ◽  
...  
Keyword(s):  
Contrast Media ◽  
Complement System ◽  
In Vivo Study ◽  
Radiographic Contrast ◽  
Radiographic Contrast Media ◽  
The Complement System

Effect of radiographic contrast media on the complement system in rats

1989 ◽  
Vol 107 (6) ◽  
pp. 835-837 ◽  
Author(s):  
P. V. Sergeev ◽  
A. Ya. Kul'berg ◽  
N. L. Shimanovskii ◽  
Yu. K. Napolov ◽  
S. V. Ukhanov
Keyword(s):  
Contrast Media ◽  
Complement System ◽  
Radiographic Contrast ◽  
Radiographic Contrast Media ◽  
The Complement System

scholarly journals Influence of ionic and non-ionic radiographic contrast media on leukocyte adhesion molecules

2003 ◽  
Vol 12 (5) ◽  
pp. 269-275 ◽  
Author(s):  
Guy L. J. Vermeiren ◽  
Roel Willems ◽  
Marc J. Claeys ◽  
Chris Vrints ◽  
Herman Slegers ◽  
...  
Keyword(s):  
Coronary Angiography ◽  
Contrast Media ◽  
Adhesion Molecules ◽  
Leukocyte Adhesion ◽  
Serum Samples ◽  
Cd11b Expression ◽  
Radiographic Contrast ◽  
Radiographic Contrast Media

Background:Many papers have focused on the importance of granulocytes in the process of reperfusion and ischemia. Most of the clinical studies measured several parameters of this process during and after coronary angiography, without taking into account the effect of the radiographic contrast media (RCM) used during this procedure.Materials and methods:We performed a randomized patient study(n=37)to evaluate the effect of ionic and non-ionic RCM on granulocyte adhesion during coronary angiography. We also evaluated the influence of the ionicity and osmolarity of the different substances on granulocyte adhesion molecules inin vitroexperiments.Results:The osmolarity of patient serum samples increased from 302±1 to 309±1 mOsm/kg(P<0.05)after infusion of RCM. The CD11b expression in the samples of the non-ionic RCM treated group increased from 221±21 MFI to 377±30 MFI(P<0.05)measured as the absolute mean fluorescence intensity (MFI), yet did not alter significantly in the ionic RCM group. In contrast, thein vitroexperiments showed a reduction of the CD11b expression from 360±70 MFI to 149±30 MFI(P<0.05)in the ionic RCM group.Conclusions:The upregulation of adhesion molecules was significantly reducedin vivowith ionic RCM, while ionic substances caused opposite effectsin vitro. This effect should be taken into account when performing leukocyte functional analysis of samples taken during angiography.

Formation of Potential Antigens from Radiographic Contrast Media

1987 ◽  
Vol 28 (4) ◽  
pp. 473-477 ◽  
Author(s):  
R. Nilsson ◽  
L. Ehrenberg ◽  
I. Fedorcsak
Keyword(s):  
Contrast Media ◽  
Serum Proteins ◽  
Radical Mechanism ◽  
Free Radical Mechanism ◽  
Radiographic Contrast ◽  
Radiographic Contrast Media ◽  
Radiation Induced ◽  
Toxic Concentrations

The use of radiographic contrast media is occasionally accompanied by more or less serious adverse effects, evidently of complex etiology, following intravascular administration. Some of these reactions are suspected of having an allergic basis. The in vitro and in vivo formation of iodinated serum proteins following gamma irradiation in the presence of two commonly used radiographic contrast media is demonstrated. Non-toxic concentrations of ascorbate present during the irradiation is shown to prevent the formation of such iodo-proteins in vitro as well as in vivo. The amounts of potentially antigenic iodoprotein formed during radiographic procedures will certainly be very small, but this quantity may be sufficient to elicit a hypersensitivity reaction in cases when an individual has been previously sensitized to immunologically similar iodo-proteins, a mechanism that could account for certain rare and unpredictable reactions. The radiation induced formation of iodo-proteins may also serve as a model for the formation of iodine containing antigens mediated by a free radical mechanism, i.e. in the metabolism of iodinated compounds like erythrosine, a widely used colouring agent for certain foods.

Adverse Drug Reactions to Radiographic Contrast Media in a Teaching Hospital in North India: An Observational Study

2019 ◽  
Vol 14 (2) ◽  
pp. 122-126
Author(s):  
Deepti Chopra ◽  
Abhinav Jain ◽  
Richa Garg ◽  
Shreya Dhingra
Keyword(s):  
Observational Study ◽  
Contrast Media ◽  
Adverse Drug Reactions ◽  
Teaching Hospital ◽  
Adverse Reactions ◽  
North India ◽  
Drug Reactions ◽  
Iodinated Contrast ◽  
Radiographic Contrast ◽  
Radiographic Contrast Media

Background: Radiocontrast media are used extensively nowadays to visualize internal organs. Currently, non-ionic iodinated contrast media are used which are generally considered to be safe but some adverse reactions have been reported. Thus, the present study was carried out to analyze the nature and incidence of adverse drug reactions (ADRs) to radiographic contrast media in a teaching hospital. Methods:An observational study carried out for a period of six months in a teaching hospital. Contrast media induced adverse reactions were analyzed in terms of affected organs, rate, causality assessment, severity and preventability. The treatment and outcomes of adverse events were also recorded. Naranjo Probability Scale was used to evaluate the relationship between the contrast agent used and the suspected ADR. The severity of the suspected ADRs was determined using Hartwig Scale and preventability was assessed using modified Schumock and Thornton criterion. Results:A total of 15 suspected ADRs occurred in 11 patients with an incidence of 1.4%. It included 5 (45.4%) males and 6 (54.5%) females (p < 05). The highest percentage (72.7 %) of ADRs was seen in adult patients, the mean age being 40.8 years. Vomiting (33.3%) was the most common ADR noted followed by severe nausea and rashes. 64.7 % of ADRs were categorized as probable and 35.3 % were possible. Adverse reactions required treatment in 46.6% patients. There was no fatality reported. Conclusion:The reactions observed were mild to moderate in severity and occurred within 30 minutes of the administration of the contrast.

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