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Arterial blood gas determination in patients with anterior packing
Author(s) -
Slocum Carl W.,
Maisel Robert H.,
Cantrell Robert W.
Publication year - 1976
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-197606000-00014
Subject(s) - nasal packing , medicine , pco2 , hypoxia (environmental) , surgery , nose , significant difference , arterial blood , anesthesia , oxygen , chemistry , organic chemistry
Twenty‐two healthy males ranging in age between 18 and 43 years were studied by arterial blood sample obtained before nasal surgery and again after complete bilateral nasal obstruction produced by nasal packing. Five of these patients had a third sample drawn after pack removal. The pO 2 dropped from a preoperative mean of 85 mm Hg to 74 mm Hg. This difference is statistically significant; pCO 2 did not change between the two measurements. This result is attributed to hypoxia caused by acute total nasal obstruction. It suggests that anterior packing alone may cause a clinically important hypoxia in patients with inadequate pulmonary reserve and that these patients merit close observation when bilateral anterior packing is placed. The early removal of anterior packing in patients where possible seems indicated. Supplemental O 2 (40 percent) for patients over 40 years of age requiring nasal packing is practiced at this Center.