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Late postoperative episodic and constant hypoxaemia and associated ECG abnormalities
J Rosenberg1, V Rasmussen, F von Jessen
1Department of Surgical Gastroenterology, Hvidovre University Hospital, Denmark.
British Journal of Anaesthesia
|November 1, 1990
Summary
Major abdominal surgery significantly increases heart rate and decreases oxygen saturation in patients without prior cardiopulmonary disease. Postoperative monitoring revealed more frequent oxygen desaturations and ECG changes, linked to pain management and heart rate increases.
Area of Science:
- Cardiology
- Anesthesiology
- Critical Care Medicine
Background:
- Elective major abdominal surgery poses risks to cardiopulmonary function.
- Perioperative cardiac monitoring is crucial for patient safety.
Purpose of the Study:
- To investigate the impact of major abdominal surgery on heart rate and oxygen saturation.
- To assess the incidence of ECG abnormalities and oxygen desaturation post-surgery.
Main Methods:
- Continuous Holter monitoring and pulse oximetry were used in 22 patients.
- Monitoring occurred the night before and two nights after surgery, without oxygen therapy.
Main Results:
- Mean heart rate increased by 16 bpm (P<0.001), and mean oxygen saturation (SaO2) decreased by 2.6% (P<0.001) post-operation.
- Episodic oxygen desaturation (<80%) increased from 4 to 13 patients (P<0.05).
- Postoperative SaO2 correlated with opioid dose and heart rate increase.
Conclusions:
- Major abdominal surgery adversely affects heart rate and oxygen saturation.
- Increased desaturation and ECG changes are common post-surgery, potentially related to pain and tachycardia.
- No major cardiac complications were observed in this cohort.