Winter blues, not just psychological!

Winter blues, not just psychological!
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Turns out, winter months don\'t just affect people\'s mood but also their health, a new research has stated.

Washington D.C. : Turns out, winter months don't just affect people's mood but also their health, a new research has stated.

According to two new studies conducted by the Society for Cardiovascular Angiography and Interventions, winter is the most common time for hospital admissions.

Aortic dissection is a serious condition where there is a tear in the inner lining of the aortic vessel and if left untreated, is associated with a high mortality rate of nearly 50 percent at 48 hours (NCBI).

Additionally, STEMI is a serious type of heart attack during which one of the heart's major arteries is blocked--making it one of the leading causes of deaths in the U.S. contributing to about 735,000 American heart attacks each year (CDC).

One study, led by Dhara Patel, estimated an annual number of patient hospitalizations for aortic dissection from 2000-2012. The frequency of hospitalization per month over the 12 years was calculated and divided by the number of days to determine the mean hospitalizations per day for each month.

An estimated 6,199 hospitalisations with a primary diagnosis of aortic dissection occurred with the number of hospitalizations per day stratified by season. Results of this study showed hospitalisations being highest in winter (January) and lowest in summer (June).

"While earlier studies have shown seasonal variations for other cardiac conditions, this is the first time we found an impressive pattern of seasonal variation in hospitalizations in the U.S. specifically for aortic dissection," said Dhara Patel.

"Our results show a notable increase in hospital rates in the winter, and now we need to work to truly understand why this is happening. It is our hope that by understanding the connection between colder months and aortic dissection, we can ultimately prevent future cases and help improve patient outcomes."

A second study reviewed patients from the NIS database admitted with STEMI from 2007 to 2011. Patients were assessed by weekday and weekend and also stratified by month. Of the 827,196 STEMI patients identified, 595,452 were admitted during the weekday, and 231,745 during the weekend.

The results for in-hospital mortality rates ranged by month and showed patients admitted with STEMI having a higher mortality rate in winter months than in summer months. Mortality rates in June to August ranged from 6.1-6.7 percent, whereas in winter months, December to February, mortality rates ranged from 7.2-7.6 percent.

"Our study is the largest of its kind to look at the effect of admission day/month on STEMI outcomes, and our results show a higher mortality rate in winter months," said lead author, Chowdhury Ahsan.

"Patients included in this study transferred locations at some point while receiving care, which only stresses the vital importance of having an interconnected healthcare system to decrease mortality rates during winter months and deliver optimum patient care."

The study has been presented at the Society for Cardiovascular Angiography and Interventions (SCAI) Scientific Sessions in San Diego.

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