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Clinical Services at Rush Tetralogy of Fallot Surgical Repair of Infant at Six Weeks

Presentation: M.R., a 28-year-old female experiencing her first term pregnancy, presented to the Rush Fetal and Neonatal Medicine Center at 21 weeks of gestation in January 2008, following referral by her general obstetrician in St. Charles, Illinois, after a routine ultrasound had raised the suspicion of a fetal cardiac defect. A fetal echocardiogram performed by Xavier Pombar, DO, perinatologist, revealed a ventricular septal defect (VSD), pulmonary stenosis and suspected overriding aorta, suggesting a diagnosis of tetralogy of Fallot, which consists of four complex cardiac malformations appearing together.

Program staff met with M.R. to provide support and further discuss the fetal diagnosis; the team relayed the fetal echocardiogram findings to M.R.’s primary obstetrician, as well as the recommendation to perform a follow-up echocardiogram in four weeks.

The repeat fetal echocardiogram was performed at Rush at 25 weeks of gestation, re-demonstrating the previous findings. In addition, a narrowed right ventricular out­flow tract was also noted, completing the clinical picture for tetralogy of Fallot.

Prenatal care: In consideration of her distance to Rush and the fetal findings, M.R. transferred prenatal care at 32 weeks of gestation, after consultation with her primary obstetrician. During a multidisciplinary conference, M.R. and her family met her care team, comprising a pediatric cardiologist, neonatologist, perinatologist, advanced prac­tice nurses, a social worker and a chaplain. Working with M.R., the team developed an individualized plan for continued prena­tal care, delivery, postnatal evaluation and intervention for the infant. Because surgery would be expected to correct the cardiac de­fect, pediatric cardiovascular specialists from the Rush Center for Congenital and Struc­tural Heart Disease were present as well.

According to plans, biweekly antenatal testing began at 32 weeks and a repeat fetal echocardiogram was performed at 36 weeks.

Delivery: M.R.’s proposed plan for delivery included an anticipated vaginal delivery at term. During the course of her labor, however, Ramkrishna Mehendale, MD, attending obstetrician, determined failure of labor to progress and recommended a cesarean delivery. Jean Silvestri, MD, attending neonatologist, and Ra-id Abdulla, MD, pediatric cardiologist, assembled their teams for delivery.

Baby girl R. was delivered via c-section weighing 9 lbs. 8 oz. She was immediately assessed by the awaiting neonatology and pediatric cardiology teams and transferred to the special care nursery for further evaluation and management, with initiation of maternal-fetal attachment encouraged.

An echocardiogram performed at the infant’s bedside immediately after delivery confirmed the antenatal diagnosis and revealed good cardiac function, with reassuring oxygen saturation levels. Following medical co-management by neonatology and pediatric cardiology, baby R. was discharged four days after her birth with pediatric cardiology follow-up scheduled for one week postdischarge. To maintain continuity of care, baby R.’s pediatrician and primary obstetrician were informed of the comprehensive follow-up plan.

Surgical treatment: At subsequent visits with pediatric cardiologists, baby R. was found to have the anticipated cyanotic spells that are a hallmark of her condition. The findings indicated a need for inpatient hospitalization and early surgical repair of the cardiac anomaly. Pediatric cardiac surgeons Michel Ilbawi, MD, and Anastasios Polimenakos, MD, performed complete surgical repair of the tetralogy of Fallot at six weeks of age, including patch closure of the ventricular and atrial septal defects, bovine pericardial transannular patch augmentation of the small right ventricular outflow tract and mono-cusp valve placement. The immediate postoperative course was com­plicated by junctional ectopic tachycardia (an abnormal cardiac rhythm) that was well controlled by temporary pacing and medica­tions. Within two weeks postsurgery, baby R. was discharged home from the pediatric intensive care unit in stable condition.

Conclusion: Early assessment and confirmation of the fetal cardiac anomaly was integral in devising a plan of care for a medically complex case. The surgical outcome was optimal; on the initial postoperative visit, baby R. was noted to be in satisfactory, stable condition and was scheduled for further follow-up three months later.

(Download a copy of the case study in PDF format using the link at right, under "Related Topics.")

 


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Rush Fetal and Neonatal Program
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