Use of CT scans during pregnancy increased in U.S. and Canada over 2 decades

A large, multicenter study of advanced medical imaging in pregnancy, published in JAMA Network Open and co-led by Marilyn Kwan, PhD, found that CT scans were performed in 0.8% of pregnancies in the United States and 0.4% in Ontario in 2016; these rates increased nearly fourfold in the United States and doubled in Ontario over the 21 years.
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New study finds both components of blood pressure predict heart attack, stroke risk

“This research brings a large amount of data to bear on a basic question, and it gives such a clear answer,” said lead author Alexander C. Flint, MD, PhD, Kaiser Permanente stroke specialist and adjunct researcher with the Division of Research. “Every way you slice the data, the systolic and diastolic pressures are both important.”
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Clinical tool accurately predicts children’s appendicitis risk in Kaiser Permanente emergency rooms

Erring on the side of caution, emergency physicians tend to order CT scans to evaluate appendicitis in children, “but research shows that we weren’t necessarily catching more appendicitis,” Dr. Cotton said. “CT scans are costly and expose children to ionizing radiation that can increase the risk of cancer. At the same time, emergency physicians do not want to miss an important diagnosis like appendicitis.”
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