Matches in SemOpenAlex for { <https://semopenalex.org/work/W1964575581> ?p ?o ?g. }
- W1964575581 endingPage "281" @default.
- W1964575581 startingPage "273" @default.
- W1964575581 abstract "Background Head elevation can restore airway patency during anesthesia, although its effect may be offset by concomitant bite opening or accidental neck flexion. The aim of this study is to examine the effect of head elevation on the passive upper airway collapsibility during propofol anesthesia. Method Twenty male subjects were studied, randomized to one of two experimental groups: fixed-jaw or free-jaw. Propofol infusion was used for induction and to maintain blood at a constant target concentration between 1.5 and 2.0 μg/ml. Nasal mask pressure (PN) was intermittently reduced to evaluate the upper airway collapsibility (passive PCRIT) and upstream resistance (RUS) at each level of head elevation (0, 3, 6, and 9 cm). The authors measured the Frankfort plane (head flexion) and the mandible plane (jaw opening) angles at each level of head elevation. Analysis of variance was used to determine the effect of head elevation on PCRIT, head flexion, and jaw opening within each group. Results In both groups the Frankfort plane and mandible plane angles increased with head elevation (P < 0.05), although the mandible plane angle was smaller in the free-jaw group (i.e., increased jaw opening). In the fixed-jaw group, head elevation decreased upper airway collapsibility (PCRIT ~ -7 cm H₂O at greater than 6 cm elevation) compared with the baseline position (PCRIT ~ -3 cm H₂O at 0 cm elevation; P < 0.05). Conclusion : Elevating the head position by 6 cm while ensuring mouth closure (centric occlusion) produces substantial decreases in upper airway collapsibility and maintains upper airway patency during anesthesia." @default.
- W1964575581 created "2016-06-24" @default.
- W1964575581 creator A5011678372 @default.
- W1964575581 creator A5014637242 @default.
- W1964575581 creator A5032875352 @default.
- W1964575581 creator A5039632739 @default.
- W1964575581 creator A5045416748 @default.
- W1964575581 creator A5075122815 @default.
- W1964575581 creator A5083001979 @default.
- W1964575581 creator A5085934640 @default.
- W1964575581 creator A5088788720 @default.
- W1964575581 date "2011-08-01" @default.
- W1964575581 modified "2023-09-27" @default.
- W1964575581 title "Effect of Head Elevation on Passive Upper Airway Collapsibility in Normal Subjects during Propofol Anesthesia" @default.
- W1964575581 cites W1749201213 @default.
- W1964575581 cites W176674070 @default.
- W1964575581 cites W1848714550 @default.
- W1964575581 cites W1972994324 @default.
- W1964575581 cites W1978580903 @default.
- W1964575581 cites W1993964196 @default.
- W1964575581 cites W1995692040 @default.
- W1964575581 cites W1996726371 @default.
- W1964575581 cites W2004878858 @default.
- W1964575581 cites W2017015520 @default.
- W1964575581 cites W2028944048 @default.
- W1964575581 cites W2035093747 @default.
- W1964575581 cites W2048680698 @default.
- W1964575581 cites W2060371244 @default.
- W1964575581 cites W2063673182 @default.
- W1964575581 cites W206727613 @default.
- W1964575581 cites W2069882471 @default.
- W1964575581 cites W2079956222 @default.
- W1964575581 cites W2080708164 @default.
- W1964575581 cites W2098742936 @default.
- W1964575581 cites W2101001191 @default.
- W1964575581 cites W2104989536 @default.
- W1964575581 cites W2109096706 @default.
- W1964575581 cites W2111011859 @default.
- W1964575581 cites W2116216160 @default.
- W1964575581 cites W2122295507 @default.
- W1964575581 cites W2123926550 @default.
- W1964575581 cites W2126107107 @default.
- W1964575581 cites W2126155630 @default.
- W1964575581 cites W2131331526 @default.
- W1964575581 cites W2134699312 @default.
- W1964575581 cites W2143008299 @default.
- W1964575581 cites W2149350222 @default.
- W1964575581 cites W2151961444 @default.
- W1964575581 cites W2152176343 @default.
- W1964575581 cites W2156721496 @default.
- W1964575581 cites W2158453684 @default.
- W1964575581 cites W2159950140 @default.
- W1964575581 cites W2161786477 @default.
- W1964575581 cites W2162412381 @default.
- W1964575581 cites W2162645075 @default.
- W1964575581 cites W2275814245 @default.
- W1964575581 cites W2321413102 @default.
- W1964575581 cites W3091369972 @default.
- W1964575581 doi "https://doi.org/10.1097/aln.0b013e318223ba6d" @default.
- W1964575581 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3145028" @default.
- W1964575581 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21701378" @default.
- W1964575581 hasPublicationYear "2011" @default.
- W1964575581 type Work @default.
- W1964575581 sameAs 1964575581 @default.
- W1964575581 citedByCount "25" @default.
- W1964575581 countsByYear W19645755812012 @default.
- W1964575581 countsByYear W19645755812013 @default.
- W1964575581 countsByYear W19645755812014 @default.
- W1964575581 countsByYear W19645755812015 @default.
- W1964575581 countsByYear W19645755812016 @default.
- W1964575581 countsByYear W19645755812017 @default.
- W1964575581 countsByYear W19645755812018 @default.
- W1964575581 countsByYear W19645755812020 @default.
- W1964575581 countsByYear W19645755812021 @default.
- W1964575581 countsByYear W19645755812023 @default.
- W1964575581 crossrefType "journal-article" @default.
- W1964575581 hasAuthorship W1964575581A5011678372 @default.
- W1964575581 hasAuthorship W1964575581A5014637242 @default.
- W1964575581 hasAuthorship W1964575581A5032875352 @default.
- W1964575581 hasAuthorship W1964575581A5039632739 @default.
- W1964575581 hasAuthorship W1964575581A5045416748 @default.
- W1964575581 hasAuthorship W1964575581A5075122815 @default.
- W1964575581 hasAuthorship W1964575581A5083001979 @default.
- W1964575581 hasAuthorship W1964575581A5085934640 @default.
- W1964575581 hasAuthorship W1964575581A5088788720 @default.
- W1964575581 hasBestOaLocation W19645755811 @default.
- W1964575581 hasConcept C105922876 @default.
- W1964575581 hasConcept C157369684 @default.
- W1964575581 hasConcept C2776277131 @default.
- W1964575581 hasConcept C2779767645 @default.
- W1964575581 hasConcept C29694066 @default.
- W1964575581 hasConcept C42219234 @default.
- W1964575581 hasConcept C59822182 @default.
- W1964575581 hasConcept C71924100 @default.
- W1964575581 hasConcept C86803240 @default.
- W1964575581 hasConceptScore W1964575581C105922876 @default.
- W1964575581 hasConceptScore W1964575581C157369684 @default.
- W1964575581 hasConceptScore W1964575581C2776277131 @default.