Chapter 35 Modified uvulopalatopharyngoplasty with uvula preservation
A narrow upper airway is one of the main causes of obstructive sleep apnea/hypopnea syndrome (OSAHS). Uvulopalatopharyngoplasty (UPPP), which ablates both the two tonsils and part of the redundant soft palate to decrease the oropharyngeal obstruction, is still the most widely used surgery. Unfortunately there are about 50% non-responders to UPPP for unselected patients and the classic UPPP has complications such as palatopharyngeal incompetence and palatopharyngeal stenosis. To reduce the UPPP complication rate without compromising the surgical response, the first author designed a new method of UPPP, in which the uvula is preserved, a larger portion of the soft palate is removed, and the basic structure of the oropharyngeal cavity is maintained. This revised UPPP with uvula preservation was first introduced by Han Demin in 2000 and was named Han-UPPP (H-UPPP). H-UPPP is widely used in China and has been proved to be an effective surgical method, causing fewer complications compared with classic UPPP.
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