Internet Search Volumes in Brain Aneurysms and Subarachnoid Hemorrhage: Is There Evidence of Seasonality?

Studying risk factors for aneurysmal subarachnoid hemorrhage (SAH) allows for better understanding of pathophysiology, improved preventative strategies, and more efficient use of limited healthcare resources. Some risk factors, such as hypertension, smoking, and ethnicity are well-known1, but other often-overlooked factors such as meteorological conditions and seasonality, are still topics of controversy. Some previous studies have shown an increase in the occurrence of SAH in the wintertime and a nadir in the summer [2 –5], whereas others have instead reported a increase in the spring [3], summer [6], or autumn [7].

Source: Clinical Neurology and Neurosurgery - April 6, 2017 Category: Neurosurgery Authors: Jerry Ku, Naif M. Alotaibi, Justin Wang, George M. Ibrahim, Tom A. Schweizer, R.Loch Macdonald Source Type: research