AIIMS Delhi Performs India's First In-Utero Spine Repair

Surgeons at AIIMS New Delhi achieved a historic medical milestone by completing India's first open fetal myelomeningocele repair. A multidisciplinary medical team operated on an unborn fetus at 25 weeks of gestation. Consequently, this intervention offered a critical window to prevent progressive neurological impairment before birth. Currently, both the mother and the fetus remain stable under close observation. Therefore, this breakthrough marks a transformative advancement for fetal medicine across South Asia.

Clinical Rationale for Fetal Myelomeningocele Repair

Myelomeningocele represents the most severe manifestation of spina bifida. In this defect, the spinal canal fails to close completely during early embryonic development. As a result, exposed spinal nerves suffer chemical trauma from amniotic fluid exposure. Furthermore, physical trauma against the uterine wall causes additional progressive neuronal loss. Affected infants often develop lifelong lower extremity paralysis and neurogenic bowel or bladder dysfunction. Additionally, many children experience hydrocephalus and Chiari II malformation requiring lifelong surgical shunts. Historically, pediatric neurosurgeons closed these spinal defects only after delivery. However, corrective surgery before delivery protects functional neural tissue from irreversible injury.

Surgical Execution and Multidisciplinary Collaboration

The complex six-hour procedure took place at the AIIMS Neurosciences Centre. Prior to surgery, specialists conducted five weeks of meticulous imaging and operative simulations. In addition, more than thirty clinicians joined forces across multiple hospital departments. Neurosurgery teams worked closely alongside maternal-fetal medicine and obstetric anesthesia experts. Meanwhile, plastic surgeons and neonatologists ensured comprehensive contingency care throughout the procedure. Surgeons utilized high-resolution intraoperative microscopy alongside continuous ultrasound guidance. Specifically, the team successfully sealed the cerebrospinal fluid leak in the lumbosacral spine. Remarkably, the public hospital delivered the procedure free under Janani Shishu Suraksha Karyakram.

Evidence-Based Outcomes and Procedural Risks

Rigorous international clinical trials validate the neurological benefits of prenatal closure. For example, the landmark Management of Myelomeningocele Study demonstrated dramatic clinical improvements. Specifically, prenatal repair halved the 12-month need for ventriculoperitoneal shunting from 82% to 40%. Furthermore, prenatal intervention significantly reversed hindbrain herniation and improved independent walking. Nevertheless, clinicians emphasize that fetal surgery represents risk reduction rather than an absolute cure. Consequently, maternal-fetal interventions carry real hazards, including preterm rupture of membranes and early delivery. Uterine dehiscence, intraoperative hemorrhage, and chorioamnionitis also pose ongoing therapeutic dilemmas. Therefore, strict patient selection and tertiary care surveillance remain essential prerequisites for safety.

Frequently Asked Questions

Q1: What gestational age is appropriate for prenatal myelomeningocele repair?

Clinicians generally perform prenatal repair between 19 and 26 weeks of gestation. Specifically, fetal surgery before 26 weeks maximizes neural preservation before irreversible amniotic fluid damage occurs.

Q2: Does fetal myelomeningocele repair completely cure spina bifida?

No, the surgery protects surviving nerve tissue but cannot reverse existing congenital damage. However, it significantly reduces shunt dependence and improves long-term ambulatory outcomes in selected candidates.

Q3: What are the main maternal risks associated with open fetal surgery?

Major maternal risks include uterine dehiscence, chorioamnionitis, and preterm labor. Therefore, mothers require future delivery by scheduled Cesarean section to prevent uterine rupture.

References

1. At AIIMS Delhi, India’s first fetal surgery to repair baby’s spine before birth - ETHealthworld
2. Adzick NS, Thom EA, Spong CY, et al. A Randomized Trial of Prenatal versus Postnatal Repair of Myelomeningocele. New England Journal of Medicine. 2011;364(11):993-1004.
3. Farmer DL, Thom EA, Brock JW, et al. The Management of Myelomeningocele Study: full cohort 30-month pediatric outcomes. American Journal of Obstetrics & Gynecology. 2018;218(2):256.e1-256.e13.