Angiografia com gás dióxido de carbono

Implante de filtro de veia cava com uso de dióxido de carbono como meio de contraste: série de casos

“…Evidence has been reported suggesting that the nephrotoxic effects of iodinated contrast on renal parenchyma are not temporary, but permanent and cumulative 3,6,7 . Patients with chronic renal failure under medical treatment, or with allergy to iodinated contrast benefit from vena cava filter placement using alternative or no contrast media [4][5][6][7] .…”

“…When injected into a blood vessel, bubbles of CO 2 are fully dissolved within two to three minutes. For patients with chronic obstructive pulmonary disease, the amount per injection should be reduced and the time interval between injections should be increased 4,5,11 .…”

“…CO 2 is exhaled in a single passage through the lungs. However, the bubbles injected in the venous system may cross into the arterial system through the patent foramen ovale or other septal defects into the heart 3,4 . There are no absolute contraindications to CO 2 .…”

“…There are no absolute contraindications to CO 2 . However, it is prudent to avoid using it in the thoracic aorta due to the risk of gas embolism in the spinal, coronary and carotid arteries 4,5 .…”

“…Angiography with CO 2 can be used for the precise measurement of the inferior vena cava diameter, evaluation of anatomical features and evidence of non-occlusive thrombi, venous stenosis and even occlusions. It can also guide percutaneous interventions, such as vena cava filter implantation or vena cava recanalization [3][4][5] .…”