sodium-pertechnetate-tc-99m has been researched along with Hypoxia* in 2 studies
2 other study(ies) available for sodium-pertechnetate-tc-99m and Hypoxia
Article | Year |
---|---|
The incidence and severity of hypoxia associated with 99Tcm Technegas ventilation scintigraphy and 99Tcm MAA perfusion scintigraphy.
Inhalation of the ventilatory radiopharmaceutical 99Tcm Technegas leads, in some patients, to symptoms that may be attributed to temporary lowering of oxygen saturation. In order to evaluate this, oxygen saturation was measured by pulse oximetry in a series of patients undergoing Technegas ventilation scintigraphy. A decrease in oxygen saturation was recorded in 87% of the patient group. The mean change, as a percentage of the initial value, was 8.3% (range 1-24%). Hypoxia arising in association with Technegas administration may be reduced by pre-oxygenation. In patients who were pre-oxygenated, oxygen saturation did not fall below 85% (PaO2: 50 mmHg) but in 39% of those not pre-oxygenated the value fell below this level. Oxygen saturation was also monitored in a series of patients undergoing perfusion scintigraphy. In 17% of patients a decrease was recorded (range 2-11%). In view of the large number of perfusion scans performed annually in this department and elsewhere without untoward effect, such temporary decreases in oxygen saturation presumably present no hazard to the patient. Topics: Adolescent; Adult; Aged; Aged, 80 and over; Albumins; Female; Graphite; Humans; Hypoxia; Lung; Male; Middle Aged; Oxygen; Radionuclide Imaging; Sodium Pertechnetate Tc 99m; Technetium Tc 99m Aggregated Albumin | 1992 |
Anomalous drainage of the right superior vena cava into the left atrium.
A 22 year old man with asymptomatic hypoxemia was found to have a large right to left shunt due to a rare congenital anomaly: total drainage of the right superior vena cava into the left atrium. The anomaly was first suspected after radionuclide angiocardiography was performed using technetium-99m macroaggregated albumin and was confirmed by cardiac catheterization. Contrast echocardiographic and surgical findings are discussed. Other reports on this anomaly are reviewed. Topics: Adult; Cardiac Catheterization; Coronary Circulation; Echocardiography; Heart Atria; Heart Defects, Congenital; Humans; Hypoxia; Male; Serum Albumin; Sodium Pertechnetate Tc 99m; Technetium; Technetium Tc 99m Aggregated Albumin; Vena Cava, Superior | 1983 |