Pregnancy Not Linked To Increased Myasthenia Gravis Flare-up Risk

For female participants pinch myasthenia gravis, gestation is not associated pinch an accrued consequence of superior flare-ups of nan disease, aliases caller aliases worsening symptoms, according to a study published May 13, 2026, in Neurology®, nan aesculapian diary of the American Academy of Neurology. For a mini percent of people, nan postpartum play of up to a twelvemonth aft commencement is associated pinch an accrued consequence of superior flare-ups.

Myasthenia gravis is an autoimmune disease that causes musculus weakness. It affects nan voluntary muscles. Symptoms tin see eyelid drooping, double vision, slurred aliases low-volume speech, problem chewing and swallowing, and weakness successful nan neck, limb and limb muscles.

This is awesome news for women pinch myasthenia gravis, arsenic erstwhile mini studies had conflicting results and galore women take not to person children owed to fearfulness that nan illness will get worse during aliases aft pregnancy. It's reassuring to spot that gestation did not lead to an summation successful superior flare-ups and, for nan mostly of women, that was besides existent successful nan months aft birth."

Anna Rostedt Punga, MD, PhD, study author, Uppsala University, Sweden

The study looked astatine whether female participants pinch myasthenia gravis who were pregnant were admitted to nan infirmary owed to nan illness during gestation and successful nan twelvemonth afterward and compared that pinch whether aliases really often they were admitted to nan infirmary successful nan twelvemonth earlier pregnancy.

Researchers examined a Swedish registry for group pinch myasthenia gravis. They looked astatine nan records for female participants who had pregnancies that reached astatine slightest 22 weeks from 1987 to 2019.

A full of 112 participants pinch 176 pregnancies were included successful nan study.

The researchers recovered that participants were not much apt to beryllium hospitalized for nan illness during gestation than successful nan twelvemonth earlier pregnancy. For those who did person hospitalizations, location was nary accrued consequence of longer hospitalizations during pregnancy.

For nan twelvemonth aft birth, location was wide nary accrued consequence of hospitalization. However, for those who were hospitalized, nan magnitude of hospitalization accrued compared to nan twelvemonth earlier pregnancy.

A full of 19 pregnancies, aliases 11%, successful 16 participants required astatine slightest 1 infirmary admittance for myasthenia gravis successful nan first twelvemonth aft birth, compared to 12 pregnancies, aliases 7%, successful 11 participants successful nan twelvemonth earlier pregnancy.

After researchers adjusted for different factors that could impact nan consequence of flare-ups, specified arsenic really agelong participants had nan disease, they recovered that group were 5 times much apt to person a flare-up successful nan postpartum play than during nan twelvemonth earlier pregnancy.

"Nearly 90% of women had nary infirmary admissions related to myasthenia gravis successful their first twelvemonth aft birth," Rostedt Punga said. "For those who did, it's important to statement that among nan 16 women who needed hospitalization during nan postpartum period, 9 of them, aliases much than half, had astatine slightest 1 further gestation wherever they did not request hospitalization, indicating that these illness exacerbations are not a foregone conclusion."

A limitation of nan study is that it looked only astatine flare-ups that required hospitalization aliases an summation successful medication, truthful accusation connected milder flare-ups was not captured.

The study was supported by nan Erling-Persson Foundation and Region Uppsala.