Two-year-old conjoined twin sisters have tragically died during a highly complex operation that was intended to separate them after years of medical treatment.
Heloísa and Helena Batista da Silva died on August 15 at the Hospital das Clínicas in Ribeirão Preto, Brazil, after complications developed during what was planned to be their fifth and final separation surgery.
The sisters were born with their heads fused, a rare condition known as craniopagus conjoined twins. Reports said they shared portions of brain tissue and blood vessels, making any attempt to separate them exceptionally complicated.
Fifth Surgery Was Intended to Separate the Twins
The girls had already undergone four procedures as doctors gradually prepared them for the final separation.
During the first three operations, surgeons reportedly separated around 75 percent of the blood vessels and shared brain tissue connecting the sisters. A fourth procedure involved inserting tissue expanders, designed to create additional skin that could later be used to close and reconstruct their skulls after separation.
More than 50 medical and support staff were reportedly involved in the final operation, reflecting the extraordinary complexity of the procedure.
Complications Developed After Separation
According to reports, the twins initially reached the crucial stage of being separated, but their conditions deteriorated rapidly.
Doctors said the girls developed haemodynamic instability, meaning their bodies were unable to maintain adequate blood flow to vital organs.
One twin reportedly developed dangerously high blood pressure while the other experienced low blood pressure.
Helena suffered a cardiac arrest at 11:12 p.m., followed by Heloísa at 11:26 p.m. Medical staff attempted to resuscitate both children for about 25 minutes, but their efforts were unsuccessful.
Helena was pronounced dead at 11:37 p.m., while Heloísa died at 11:51 p.m., according to the reported account.
Doctors Said the Girls Had Fragile Health
Jayme Farina Júnior, a plastic surgeon involved in the twins’ medical care, reportedly said the sisters had endured significant health challenges throughout their short lives.
The children had reportedly suffered several bouts of pneumonia and required both a tracheostomy and a gastrostomy for feeding. Their previous illnesses had weakened their bodies, according to the medical team.
The surgeon explained that their bodies ultimately could not withstand the severe instability that developed during the final stage of the separation procedure.
Twins Were Buried the Following Day
Following their deaths, Heloísa and Helena were reportedly buried on August 16 in São José dos Campos, Brazil.
Their case highlights the extraordinary medical challenges involved in separating conjoined twins, particularly when they share critical brain structures and blood vessels.
Although advances in surgery have made some complex separations possible, the outcome can depend heavily on the anatomy and shared circulation of each pair.
