Predicting the performance of mitral prostheses implanted in children under 5 years of age

European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery
Hunaid A VohraWilliam J Brawn

Abstract

Mitral valve replacement (MVR) is occasionally indicated in infants and young children, necessitating the use of small prostheses. The performance of these small valves during somatic growth of the patient can lead to patient-prosthesis mismatch. This study examines performance of these valves over time to establish predicted performance and timing of replacement. Records were reviewed of all patients under 5 years of who underwent small mechanical MVR between 1988 and 2004 (n=24). Valve sizes were between 17 and 23 mm (Bileaflet 91.6%, Tilting Disc 8.3%) with a median size of 19 mm. Mean age of patients was 1.4+/-1.3 years with a mean weight of 7.8+/-3.4 kg. Early deaths (n=5, 20.8%) were excluded. There were two late deaths and five patients required redo-MVR: four for outgrowth and one for acute thrombosis at 3 months. Age at redo for outgrowth was 8.6+/-6.6 years with mean body weight of 22.5+/-17.5 kg. Mean time between original operation and redo was 8.6+/-6.1 years in these four patients. Follow-up was a median of 7.5 years (range 0.1-15.7 years). Overall freedom from death or valve replacement was 82.6+/-9.1% at 5 years and 75.7+/-10.6% at 10 years. The performance of the original prostheses showed a peak blood flow vel...Continue Reading

Citations

Nov 5, 2013·The Annals of Thoracic Surgery·Álvaro González RocafortFernando Villagrá
Dec 14, 2011·The Annals of Thoracic Surgery·John W BrownMark W Turrentine
Mar 17, 2010·The Journal of Thoracic and Cardiovascular Surgery·Bahaaldin AlsoufiCharles C Canver
Mar 29, 2011·The Annals of Thoracic Surgery·Daniela Y RafiiJonathan M Chen
May 9, 2014·The Heart Surgery Forum·Matteo AttisaniMauro Rinaldi
Mar 8, 2011·The Journal of Thoracic and Cardiovascular Surgery·Tomohito KanzakiHitoshi Yaku
Nov 3, 2016·Echocardiography·Taiyu HayashiHitoshi Kato
Jul 1, 2010·World Journal for Pediatric & Congenital Heart Surgery·Lucian A DurhamHartzell V Schaff
Oct 30, 2019·General Thoracic and Cardiovascular Surgery·Takuya OkamotoHideaki Kado
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Feb 15, 2021·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Gianluca BrancaccioAdriano Carotti
Apr 2, 2021·Journal of Cardiothoracic Surgery·Haoyong YuanCan Huang
May 5, 2021·World Journal for Pediatric & Congenital Heart Surgery·Mohamed F ElsisyElizabeth H Stephens
Aug 8, 2020·Journal of Cardiothoracic and Vascular Anesthesia·Denise C JoffeNelson Burbano-Vera
Jun 13, 2021·Seminars in Thoracic and Cardiovascular Surgery. Pediatric Cardiac Surgery Annual·David G LehenbauerDavid S Winlaw
Jul 29, 2021·Scientific Reports·Ahmed F ElmahroukAhmed A Jamjoom

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