Infantile Cardiomyopathy and Vitamin D

From John Cannell, MD
http://www.vitamindcouncil.org/

More evidence Vitamin D deficiency is involved in infantile cardiomyopathy.

In the above paper, Dr. Jennifer Brown and colleagues at Childrens National Medical Center reported on four more babies with life threatening cardiomyopathy (when the heart swells up and cannot pump blood effectively). All four babies improved dramatically with Vitamin D treatment including three babies who are now off all cardiac medications (I hope that does not include Vitamin D, which is a crucial cardiac medicine.) and one infant who was taken off the heart transplant list after treatment with Vitamin D.

The problem with the paper was that the authors only looked at infants whose Vitamin D levels were so low that their body could not maintain their blood calcium levels and also had rickets. The authors concluded the cause of the cardiomyopathy in the four infants was low serum calcium. I emailed Dr. Christopher Spurney, the senior author, reminding him that Vitamin D has direct effects on heart muscle cells, above and beyond its effects on calcium, and that he should check Vitamin D levels on all infants with cardiomyopathy and treat those with a low levels, not just rachitic or hypocalcemic infants. He replied that the Childrens National Medical Center is now doing just that.