Case Report
Subarachnoid Fluid Lactate and Paraplegia after Descending Aorta Aneurysmectomy: Two Compared Case Reports
Table 1
Intraoperative data.
| | | Case report 1 | Case report 2 |
| | Preclamping | | | | HR (bpm) | 62 | 73 | | SpO2 (%) | 98 | 100 | | MAP (mmHg) | 80 | 80 | | CI (L/min/mq BSA) | 2.4 | 2.7 | | SVV (%) | 9 | 4 | | pH | 7.33 | 7.35 | | pCO2 (mmHg) | 40 | 38 | | p/F ratio | 230 | 250 | | EtCO2 (mmHg) | 25 | 29 | | Subarachnoid fluid withdrawal (mL) | 40 | 60 | | /spinal perfusion pressure (mmHg) | 20/60 | 20/60 | | Diuresis (mL) | 300 | 500 | | Serum lactate (mmol/L) | 2.2 | 1.7 | | Subarachnoid lactate (mmol/L) | 1.2 | 1.6 | | During clamping | | | | HR (bpm) | 80 | 62 | | SpO2 (%) | 99 | 99 | | MAP (mmHg) | 90 | 60 | | CI (L/min/mq BSA) | 4.1 | 3.8 | | SVV (%) | 4 | 5 | | pH | 7.31 | 7.35 | | pCO2 (mmHg) | 39 | 41 | | p/F ratio | 165 | 154 | | EtCO2 (mmHg) | 26 | 30 | | Subarachnoid fluid withdrawal (mL) | 70 | 95 | | /spinal perfusion pressure (mmHg) | 15/75 | 13/47 | | Diuresis (mL) | 400 | 620 | | Serum lactate (mmol/L) | 8.9 | 5.2 | | Subarachnoid lactate (mmol/L) | 2.5 | 1.2 | | After unclamping | | | | HR (bpm) | 83 | 86 | | SpO2 (%) | 97 | 98 | | MAP (mmHg) | 70 | 80 | | CI (L/min/mq BSA) | 3.0 | 2.4 | | SVV (%) | 7 | 14 | | pH | 7.29 | 7.32 | | pCO2 (mmHg) | 46 | 41 | | p/F ratio | 208 | 240 | | EtCO2 (mmHg) | 31 | 27 | | Subarachnoid fluid withdrawal (mL) | 80 | 100 | | /spinal perfusion pressure (mmHg) | 7/63 | 18/62 | | Diuresis (mL) | 450 | 700 | | Serum lactate (mmol/L) | 10.5 | 8.3 | | Subarachnoid lactate (mmol/L) | 6.3 | 2.0 |
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HR: heart rate; MAP: mean arterial pressure; BSA: body surface area; SVV: stroke volume variation; p/F: pO2/FiO2 ratio.
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