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Efficacy of regional saturation of oxygen monitor using near-infrared spectroscopy for lower limb ischemia during minimally invasive cardiac surgery.
- Source :
- Journal of Artificial Organs; Dec2018, Vol. 21 Issue 4, p420-426, 7p
- Publication Year :
- 2018
-
Abstract
- Lower limb ischemia with an occlusive cannula is a potential complication of minimally invasive cardiac surgery (MICS). We evaluated intraoperative local oxygen supply-demand balance by monitoring regional saturation of oxygen (rSO<subscript>2</subscript>) using near-infrared spectroscopy (NIRS), and analyzed the correlation between cannula size and fluctuation range of rSO<subscript>2</subscript>. Fifty-four patients undergoing MICS surgery using femoral artery cannulation from April 2015 to August 2016 were enrolled. The rSO<subscript>2</subscript> of both the cannulated and uncannulated lower limbs were measured using NIRS. The association between the decline of rSO<subscript>2</subscript> from baseline (delta-rSO<subscript>2</subscript>) and the ratio of the cannula diameter to the femoral artery diameter (Cd/FAd) was analyzed. Of the 54 patients, 16 (30%) (Group 1) showed values over 0.65 for Cd/FAd, and the remaining 38 (70%) (Group 2) showed values under 0.65. No patient developed postoperative lower limb ischemia. No patient was treated with an ipsilateral distal perfusion cannula. There were significant differences between Group 1 and Group 2 in the decrease of rSO<subscript>2</subscript> at the point of cannulation on the cannulated limb. In the lower limb on the cannulated side, delta-rSO<subscript>2</subscript> showed a significant decrease in Group 1 compared to Group 2 (Group 1 vs Group 2: 19.9 vs 11.0%; p < 0.001). Delta-rSO<subscript>2</subscript> was significantly correlated with body surface aera (BSA), but not with gender or age. Decreasing rSO<subscript>2</subscript> correlates with the Cd/FAd index. Low BSA, Cd/Fad > 0.65 is considered as the risk factor for decline of rSO<subscript>2</subscript> in cannulated limb in MICS. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14347229
- Volume :
- 21
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Journal of Artificial Organs
- Publication Type :
- Academic Journal
- Accession number :
- 133176138
- Full Text :
- https://doi.org/10.1007/s10047-018-1057-y