Correlation between CO2 storage at the last minute of gas insufflation and area of retroperitoneal lacuna during retroperitoneal laparoscopic radical nephrectomy

Table 2 CO₂ storage (VCO₂) at the last minute of gas insulation and the area of retroperitoneal lacuna (S)

	VCO₂ (ml)	S (cm²)	PaCO₂ (kpa)	PetCO₂ (kpa)	VT (ml)		VCO₂ (ml)	S (cm²)	PaCO₂ (kpa)	PetCO₂ (kpa)	VT (ml)
1	499.39	767.7	5.60	4.67	440	21	495.53	765.9	5.60	4.40	550
2	642.61	1125.7	6.00	5.07	340	22	421.45	671.6	5.47	4.27	380
3	855.45	1374.8	6.40	5.33	330	23	510.43	731.2	5.47	4.27	600
4	380.65	702.9	5.47	4.80	480	24	392.63	613.4	5.33	4.27	500
5	458.76	734.4	5.60	4.40	370	25	389.61	575.6	5.33	4.13	700
6	479.13	702.8	5.47	4.27	470	26	375.36	526.4	5.20	3.87	500
7	774.63	1010.7	5.87	4.67	390	27	538.35	734.9	5.47	4.27	680
8	325.96	556.5	5.33	4.27	450	28	396.27	563.6	5.20	3.87	400
9	462.64	734.5	5.47	4.40	450	29	356.38	580.6	5.33	4.13	550
10	482.75	765.8	5.60	4.40	420	30	524.46	641.1	5.47	4.27	360
11	502.24	832.8	5.73	4.53	540	31	393.39	501.2	5.20	4.00	340
12	495.54	765.9	5.47	4.27	420	32	418.39	669.2	5.47	4.27	650
13	500.19	732.7	5.47	4.27	380	33	459.52	642.4	5.47	4.27	350
14	484.52	764.2	5.60	4.40	320	34	518.18	834.4	5.73	4.67	380
15	450.26	702.9	5.47	4.27	450	35	536.68	902.8	5.87	5.07	450
16	526.72	867.8	5.73	4.67	430	36	385.63	765.9	5.60	5.33	400
17	489.39	641.9	5.47	4.27	350	37	374.9	700.1	5.47	5.20	380
18	472.94	698.6	5.47	4.27	480	38	558.38	799.2	5.73	4.53	660
19	400.75	701.1	5.47	4.27	390	39	400.12	641.4	5.47	4.40	450
20	530.23	734.9	5.60	4.40	450	40	505.57	765.9	5.60	4.67	500

Notes: VCO ₂ CO₂ storage, S Area of retroperitoneal lacuna, PaCO ₂ Partial pressure of carbon dioxide in artery, PetCO ₂ End-tidal partial pressure of carbon dioxide, VT Expired tidal volume

ISSN: 1471-2253