If you have end-stage kidney disease, your heart may be working overtime. The heart muscle can thicken as it struggles to pump blood, a condition called left ventricular hypertrophy. It's a common and dangerous complication. But a new analysis of 33 studies suggests that a kidney transplant can actually reverse that damage.
Researchers looked at data from 2,364 patients who received a kidney transplant. They measured the left ventricular mass index (LVMI), a key marker of heart muscle thickness. Overall, LVMI dropped by about 22 grams per square meter after transplant. The biggest improvement happened in the first six months, with a drop of 41.5 grams per square meter.
The effect was even more dramatic in patients who received a kidney from a living donor. Their LVMI fell by nearly 77 grams per square meter. Patients who were on hemodialysis before transplant also saw significant improvement, with a drop of about 34 grams per square meter.
However, the results come with a big caveat. The studies varied widely, and the overall analysis had high heterogeneity, meaning the findings are not very precise. Also, this was an analysis of observational studies, not randomized trials, so it can only show an association, not prove cause and effect. Still, for people with end-stage kidney disease, the news is encouraging: a transplant may help your heart heal.
