Adverse reaction of contrast media(Radiology)

Adverse reaction of contrast media(Radiology)

Adverse reactions can't be seen with contrast media and we were talking about the last thing is nephrotoxicity.

5% the for toxicity happens most commonly it is in the form of acute renal failure that is transient and occurs after administration of the contrast with you any way we give contrast media if we follow the patient there would be some elevation in the serum Union and creatinine for few hours maybe days and then usual everything goes back to normal and it's not symptomatic the predisposing conditions are pre-existing lien or impairment which is up to 90 percent is the predisposing condition diabetes in 50 percent, of course, the hydration age large doses of contrast media 

Hyperosmolar contrast media there is no difference okay in the matter of nephrotoxicity other other other things that are different neurotoxicity the contrast medium may cross the blood-brain barrier when is the blood-brain is damaged for example infection infarction anything that destroys the blood-brain barrier takes enhancement that means that the contrast medium crossed the blood-brain barrier okay because if it does not cross the blood-brain barrier it will not cause enhancement the original not enhance local is better than hokum lower smaller coutras videos better than hyperosmolar contrast medium which may have some chemo toxic effect IV contrast medium may provoke convulsion and patient to the epilepsy of cerebral tumor don't panic when you give contra if you give contrast medium to someone and he gets convulsion it's due to the contrast media don't panic you just give anticonvulsant like the apartment that's it nothing else okay and the compulsion may occur due to the cerebral hypoxia when we give a large dose of contrast medium, this will result in temporary cerebral hypoxia in a patient with previous already has brain tumor or epilepsy that will main causeconvulsion main okay third rule of the heart function we are giving a huge dose of iodine as we said last time the average contrast medium the iodine does.

Thyrotoxic city may occur in patients with non-toxic goiter or exacerbate those with the pre-existing very toxic sentence if he has para toxicity may exacerbate the symptoms if he doesn't have very toxicity it may in 2/3 of crisis okay now the reactions the energy the reaction we have two types the anaphylactic and the idiosyncratic.

I hope no one sees a major edge for life fatal reactions the major ones there is no difference in the mortality rate between the ionic and then an ionic contrast me as we said the only the difference is that the ionic we cannot

 coagulopathy and bronchospasm severe bronchospasm, Give the contrast and you have a fatal

Non-fatal reaction to contrast medium sometimes necrotizing the skin region might happen which are rare okay especially in SLE systemic lupus erythematosus Boku spasm they are relatively more common some minor to mild to moderate to bronchospasm usually they have a history of asthma or use of beta-blockers mostly subclinical and less with lower contrast medium noncardiogenic pulmonary edema during the acute anaphylaxis or hypotensive collapse and increased capillary permeability due to the use of contrast with them there will be fluid will move from the intravascular compartment into the extravascular compartment resulting in pulmonary edema okay hypotension and the abdominal pain also may happen they are usually mild the hypotension and the abdominal pain may be a symptom of anaphylactic reaction or vagal overactivity.




i

Comments

Post a Comment

If you have any issue regarding articles just ask

Popular posts from this blog

Hysterosalpingogram (HSG)

Image
 The hysterosalpingogram or HSG is a simple x-ray procedure performed using fluoroscopy with intermittent still images for documentation in general the actual procedure takes three to five minutes the hsg is a relatively low-risk procedure but does result in ovarian radiation exposure greater than a pelvic CT scan thus repetitive 8 sets hsg procedures should be avoided and the radiation exposure time  Demonstrates performance of an HSG notice the slow filling of the uterine cavity with radio-opaque dye while the uterus is positioned perpendicular to the x-ray beam subsequent fill of the fallopian tubes are visualized with a free spill into the peritoneal cavity unfortunately many women have preconceptions that the HSG is a very painful test there is no question that the discomfort is influenced by the experience of the operator an HSG is performed with the installation of a radio-opaque contrast into the uterine cavity installation devices include instruments that fit into the cervix s
Read more

Percutaneous Transhepatic Cholangiography ( PTC )

Image
 Percutaneous Transhepatic Cholangiography ( PTC ) PTC is an x-ray procedure that involves direct-inject of contrast medium in the bile duct. These are the ducts that carry bile from the liver to the gallbladder and small intestine In this procedure, a thin needle is directly inserted through the skin into the liver to reach the bile duct. Indications Contraindication Equipment Patient Preparation Procedure Aftercare Complication                 Indications ERCP procedure is failed  Strictures in the bile duct Suspected bile duct obstruction Billary system delineation in the presence of intra and extrahepatic biliary calculi Cause of Jaundice Suspected tumor Anatomic evaluation of complications of ERCP                     Contraindications Suspected pregnancy Allergic to contrast medium Bleeding tendency Gross Ascites - Fluid in the abdominal cavity Sever infection at the puncture site Chronic liver disease Billary tract sepsis            Equipment Fluoroscopic unit with spot film ligh
Read more

Ultrasound for Aorta

Image
 Ultrasound of the aorta The anatomy of the abdominal aorta runs from the aortic hiritis to the bifurcation it has three major anterior branches the celiac axis at t12 the sma at l1 the ima at l2 it has multiple paired branches of which the most significant is the renal arteries at t2 the gonadal arteries and there are four paired lumber arteries this these are the gonadal arteries the celiac artery and the sma arise from the anterior aspect of the proximal aorta, this is the select axis and this is the sma in one to three percent of patients the celiac artery and the sma arise from a common trunk this is the common trunk coming off here and giving off the celiac.  Aorta technique The abdominal aorta technique measures the aorta and common iliac arteries from the outer diameter in the ap and transverse planes. Doppler tips Doppler tips aliasing is a marker of stenosis the doppler spectrum should be obtained from the site of aliasing or turbulent flow in this case from the origin of the
Read more