Volumetric and End-Tidal Capnography for the Detection of Cardiac Output Changes in Mechanically Ventilated Patients Early after Open Heart Surgery
المؤلفون المشاركون
Høiseth, Lars Øivind
Landsverk, Svein Aslak
Hoff, Ingrid Elise
Kirkebøen, Knut Arvid
المصدر
Critical Care Research and Practice
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-05-30
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Background.
Exhaled carbon dioxide (CO2) reflects cardiac output (CO) provided stable ventilation and metabolism.
Detecting CO changes may help distinguish hypovolemia or cardiac dysfunction from other causes of haemodynamic instability.
We investigated whether CO2 measured as end-tidal concentration (EtCO2) and eliminated volume per breath (VtCO2) reflect sudden changes in cardiac output (CO).
Methods.
We measured changes in CO, VtCO2, and EtCO2 during right ventricular pacing and passive leg raise in 33 ventilated patients after open heart surgery.
CO was measured with oesophageal Doppler.
Results.
During right ventricular pacing, CO was reduced by 21% (CI 18–24; p<0.001), VtCO2 by 11% (CI 7.9–13; p<0.001), and EtCO2 by 4.9% (CI 3.6–6.1; p<0.001).
During passive leg raise, CO increased by 21% (CI 17–24; p<0.001), VtCO2 by 10% (CI 7.8–12; p<0.001), and EtCO2 by 4.2% (CI 3.2–5.1; p<0.001).
Changes in VtCO2 were significantly larger than changes in EtCO2 (ventricular pacing: 11% vs.
4.9% (p<0.001); passive leg raise: 10% vs.
4.2% (p<0.001)).
Relative changes in CO correlated with changes in VtCO2 (ρ=0.53; p=0.002) and EtCO2 (ρ=0.47; p=0.006) only during reductions in CO.
When dichotomising CO changes at 15%, only EtCO2 detected a CO change as judged by area under the receiver operating characteristic curve.
Conclusion.
VtCO2 and EtCO2 reflected reductions in cardiac output, although correlations were modest.
The changes in VtCO2 were larger than the changes in EtCO2, but only EtCO2 detected CO reduction as judged by receiver operating characteristic curves.
The predictive ability of EtCO2 in this setting was fair.
This trial is registered with NCT02070861.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Hoff, Ingrid Elise& Høiseth, Lars Øivind& Kirkebøen, Knut Arvid& Landsverk, Svein Aslak. 2019. Volumetric and End-Tidal Capnography for the Detection of Cardiac Output Changes in Mechanically Ventilated Patients Early after Open Heart Surgery. Critical Care Research and Practice،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1129116
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Hoff, Ingrid Elise…[et al.]. Volumetric and End-Tidal Capnography for the Detection of Cardiac Output Changes in Mechanically Ventilated Patients Early after Open Heart Surgery. Critical Care Research and Practice No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1129116
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Hoff, Ingrid Elise& Høiseth, Lars Øivind& Kirkebøen, Knut Arvid& Landsverk, Svein Aslak. Volumetric and End-Tidal Capnography for the Detection of Cardiac Output Changes in Mechanically Ventilated Patients Early after Open Heart Surgery. Critical Care Research and Practice. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1129116
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1129116
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر