Great success during the codirection of the IV workshop about apnea and pharyngoplasty held in Madrid 9-11 February with Dres Guillermo Plaza from Madrid and Dr Batista from Pamplona. We perform succesfully a lateral pharyngoplasty in live. Also was present Dr Pang from Singapur, Dr Lugo from Mexico, Dra Carrasco from Valencia and Dr Mantovani from Italia