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Selection of Monitoring Site and Outcome after Neonatal Coarctation Repair

Department of Anesthesia
¹ Department of Cardiothoracic Surgery, Royal Hospital, Muscat, Oman

For reprint information contact: Madan M Maddali, MD, Tel: 968 2459 0192, Fax: 968 2459 0192, Email: madan{at}omantel.net.om, Royal Hospital, PB No. 1331, PC 111, Seeb, Muscat, Oman.

To assess whether simultaneous invasive arterial pressure monitoring of right upper and lower limbs in neonatal aortic coarctation with or without arch hypoplasia has an impact on surgical decision-making and outcome, data of 140 newborns who underwent emergency surgical repair over 15 years were analyzed retrospectively. The 36 who had simultaneous right arm and lower limb arterial pressure monitored intraoperatively were assigned to group 1. The other 104 who had blood pressure monitored invasively at a single site (either upper or lower limb) were allocated to group 2. In group 1, a residual gradient across the repaired segment was detected intraoperatively in 13% of patients, and corrected at the same sitting. In group 2, 6% needed subsequent balloon angioplasty. In all babies with arch hypoplasia in group 1, the proximal aortic cross clamp was readjusted at least once to avoid compromise of carotid blood flow. Simultaneous right upper and lower limb invasive pressure monitoring has an impact on the overall outcome in these sick neonates.