PMID- 23021035 OWN - NLM STAT- MEDLINE DCOM- 20130102 LR - 20121001 IS - 1878-1632 (Electronic) IS - 1529-9430 (Linking) VI - 12 IP - 8 DP - 2012 Aug TI - Intraoperative anaphylaxis to gelatin in topical hemostatic agents during anterior spinal fusion: a case report. PG - e1-6 LID - S1529-9430(12)00987-4 [pii] LID - 10.1016/j.spinee.2012.08.425 [doi] AB - BACKGROUND CONTEXT: The use of topical hemostatic agents is widespread and has been shown to reduce bleeding during a wide variety of surgical procedures. Nonetheless, as biologically active agents, there is potential for allergic reactions to these products. PURPOSE: This is a report of intraoperative anaphylaxis to gelatin associated with the use of two topical hemostatic agents. STUDY DESIGN: Case report. There is no outside funding or potential conflict of interest. PATIENT SAMPLE: A patient with anaphylaxis during anterior spinal fusion. OUTCOME MEASURES: Laboratory assays for tryptase, gelatin-specific immunoglobulin E (IgE), and total IgE. METHODS: A 14-year-old male with myelomeningocele and scoliosis was treated with anterior spinal fusion from T12 to L3. Gelfoam sponges were applied during the preparation of the disc spaces. Approximately 1 hour later, Floseal hemostatic matrix was applied to a briskly bleeding screw hole in the L3 vertebral body, and the patient experienced an abrupt onset of hypotension and ventilatory difficulty. Epinephrine, dexamethasone, and blood products were administered for hemodynamic support while the surgical site was closed. Removal of the drapes revealed a widespread erythematous rash, and the patient was then transferred to the intensive care unit. When stable 3 days later, he returned to the operating room for completion of the spinal fusion. RESULTS: Postoperative laboratory assays were sent that revealed elevated levels of tryptase, total IgE, porcine, and bovine gelatin-specific IgE. The patient was counseled to avoid gelatin-containing products. At 6-month follow-up, his instrumented spine was radiographically fused and he reported no further allergic issues. CONCLUSIONS: Anaphylaxis may occur because of animal gelatin components of topical hemostatic agents. Previous reports have focused on the thrombin components. Care should be taken in the administration of these products, particularly in the atopic individual. CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Spencer, Hillard T AU - Spencer HT AD - Department of Orthopaedic Surgery, Children's Hospital Boston, 300 Longwood Ave., Boston, MA 02115, USA. Hillard.Spencer@childrens.harvard.edu FAU - Hsu, Joyce T AU - Hsu JT FAU - McDonald, Douglas R AU - McDonald DR FAU - Karlin, Lawrence I AU - Karlin LI LA - eng PT - Case Reports PT - Journal Article PL - United States TA - Spine J JT - The spine journal : official journal of the North American Spine Society JID - 101130732 RN - 0 (FloSeal Matrix) RN - 0 (Hemostatics) RN - 9000-70-8 (Gelatin) SB - IM MH - Adolescent MH - Anaphylaxis/*etiology/therapy MH - Blood Loss, Surgical/prevention & control MH - Gelatin/*adverse effects MH - Gelatin Sponge, Absorbable/adverse effects MH - Hemostatics/*adverse effects MH - Humans MH - Male MH - Meningomyelocele/*surgery MH - Scoliosis/*surgery MH - *Spinal Fusion EDAT- 2012/10/02 06:00 MHDA- 2013/01/03 06:00 CRDT- 2012/10/02 06:00 PHST- 2012/03/10 00:00 [received] PHST- 2012/04/13 00:00 [revised] PHST- 2012/08/28 00:00 [accepted] PHST- 2012/10/02 06:00 [entrez] PHST- 2012/10/02 06:00 [pubmed] PHST- 2013/01/03 06:00 [medline] AID - S1529-9430(12)00987-4 [pii] AID - 10.1016/j.spinee.2012.08.425 [doi] PST - ppublish SO - Spine J. 2012 Aug;12(8):e1-6. doi: 10.1016/j.spinee.2012.08.425.