Microsurgical Salvage of Neonatal Upper Limb Ischaemia Following Intrauterine Brachial Vessel Constriction.

Neonatal limb ischaemia is a rare disease entity with devastating morbidity, including compartment syndrome, tissue loss, limb loss, reduced limb growth, irreparable neuropathies and Volkmann's syndrome.  We report a case of limb revascularisation and salvage due to intrauterine brachial artery thrombosis. Published literature is limited to case reports and case series, with various treatment modalities discussed. Early recognition, prompt institution of appropriate treatment and monitoring is vital to achieve successful revascularisation and prevention of life-long morbidity. A male baby at (36+6week) gestation was born to a nulliparous mother with gestational diabetes via uncomplicated elective caesarean section. Aetiology was due to dense fibrotic circumferential constriction of the brachial vessels and plexus. Successful revascularization was achieved with a contralateral interposition reversed great saphenous vein graft.  Though extremely rare and the clinical presentation varies with the location and timing after birth, the surgeon should maintain a low threshold for suspicion of in the presence of the characteristic sequelae of ischaemia. Doppler ultrasonography can aid the diagnosis where ambiguous, and therapy should be individualised based on the clinical presentation; this case emphasises the role of surgery in limb salvage.