dˈʊɹɹɪŋ ɐn əbstɹˈʌktɪv hˌaɪpoʊpnˈiː, ɪn kəmpˈæɹɪsən tʊ ɐn əbstɹˈʌktɪv ɐpnˈiə, ðɪ ˈɛɹweɪ ɪz ˈoʊnli pˈɑːɹʃəli klˈoʊzd.
During an obstructive hypopnea, in comparison to an obstructive apnea, the airway is only partially closed.