Acid-base status during reconstructive surgery of the abdominal aorta

Area of Science:

• Cardiovascular Surgery
• Anesthesiology
• Critical Care Medicine

Background:

• Abdominal aortic reconstruction often involves temporary occlusion of leg circulation.
• The impact of reperfusion on patient acid-base balance requires careful consideration.

Purpose of the Study:

• To evaluate the influence of releasing temporary leg circulation occlusion on acid-base status during abdominal aortic surgery.
• To determine the necessity of routine acid-base correction interventions.

Main Methods:

• Monitoring acid-base status during abdominal aortic surgery with temporary leg circulation occlusion.
• Observing patient's self-correction of acid-base changes post-occlusion release.

Main Results:

• Abolition of temporary leg circulation occlusion has minimal effect on acid-base status.
• Acid-base balance changes are typically corrected by the patient.
• Routine administration of sodium bicarbonate or Tham is generally not required.

Conclusions:

• Routine acid-base correction is unnecessary during abdominal aortic surgery when leg circulation is temporarily occluded.
• Close monitoring of respiration, circulation, and electrolyte balance is crucial for prompt treatment of any disturbances.
• Intraoperative acid-base status determination aids in patient evaluation and therapeutic guidance.