Arterial and End-Tidal Carbon Dioxide in Supine Obese Patients during General AnesthesiaReportar como inadecuado




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Background: We investigated the differences between partial pressure of arterial carbon dioxide and end-tidal carbon dioxide Pa-ETCO2 with respect to the Broca-Katsura index BKI, which is an obesity index, in obese patients during general anesthesia. Materials and Methods: From January 2003 to December 2013, we studied 601 patients aged 16 years old or over undergoing general anesthesia. Patients had American Society of Anesthesiology physical status I and II and we reviewed their anesthetic charts. The Pa-ETCO2 with respect to the BKI divided patients into two groups: 16 to < 65 years old, and ≥ 65 years old, and compared the Pa-ETCO2 values between the two groups. Results: In patients aged 16 to < 65 years old, the mean Pa-ETCO2 was 2.2 ± 3.1 mmHg at BKI < 20%; 3.3 ± 3.1 mmHg at 20% < BKI < 40%; and 5.5 ± 5.0 mmHg at 40% < BKI < 60%. In patients aged ≥ 65 years old , the mean Pa-ETCO2 was 3.2 ± 4.1 mmHg at BKI < 20%; 4.3 ± 3.6 mmHg at 20% to < 40%; and 4.4 ± 3.3 mmHg at 40% to < 60%. Conclusion: The Pa-ETCO2 tends to increase in obese patients during general anesthesia with increasing BKI in patients aged 16 to < 65 years old.

KEYWORDS

Arterial-Alveolar Carbon Dioxide Tension Difference, Broca-Katsura Index, End-Tidal Carbon Dioxide, Partial Pressure of Arterial Carbon Dioxide, Supine Position

Cite this paper

Satoh, K. , Chikuda, M. , Ohashi, A. , Kumagai, M. , Sato, M. , Kuji, A. and Joh, S. 2015 Arterial and End-Tidal Carbon Dioxide in Supine Obese Patients during General Anesthesia. Open Journal of Anesthesiology, 5, 79-84. doi: 10.4236-ojanes.2015.55016.





Autor: Kenichi Satoh1*, Mami Chikuda1, Ayako Ohashi1, Miho Kumagai2, Masahito Sato1, Akiyoshi Kuji2, Shigeharu Joh1

Fuente: http://www.scirp.org/



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