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Table 1 Summary of the peri-operative characteristics of the animals in the five groups

From: Investigation of the mechanism of dural arteriovenous fistula formation induced by high intracranial venous pressure in a rabbit model

  A (n = 10) B (n = 10) C (n = 10) D (n = 10) E (n = 10) P-value
Baseline       
Weight (kg) 2.23 (0.19) 2.29 (0.19) 2.23 (0.20) 2.30 (0.16) 2.17 (0.16) 0.508
Systolic artery BP (mmHg) 109.60 (4.84) 112.40 (12.52) 108.30 (8.42) 108.20 (11.58) 105.70 (12.39) 0.698
Diastolic artery BP (mmHg) 98.80 (7.58) 101.90 (10.58) 96.60 (12.95) 99.40 (10.20) 92.88 (7.57) 0.417
Venous BP (mmHg) 5.90 (1.45) 5.90 (2.02) 7.00 (2.21) 6.40 (1.26) 5.80 (2.15) 0.572
Immediately after operation       
Frequency of anastomosis patency 10/10 8/10 9/10 6/10 5/10 0.052
Systolic venous BP (mmHg) 6.20 (1.69) 49.50 (14.77)*a 54.70 (15.23)*a 47.90 (16.14)*a 46.50 (19.88)*a <0.001
Diastolic venous BP (mmHg) 42.60 (13.08)*a 45.00 (12.07)*a 42.50 (15.06)*a 41.10 (18.72)*a <0.001
Before sacrifice       
Venous BP (mmHg) 6.20 (1.87) 41.60 (12.71)*a 42.90 (10.73)*a 25.80 (13.45)*†a 26.00 (13.16)*†a <0.001
  1. Anastomosis patency is presented as number of each group; other data are presented as mean and standard deviation. A: sham group, B: end-to-end anastomosis group, C: end-to-end anastomosis + ligation of the contralateral EJV group, D: end-to-side anastomosis group, E: end-to-side anastomosis + ligation of the contralateral EJV group. BP: Blood pressure. *indicates a significant change compared to group A, †indicates a significant change compared to group B and group C. aindicates a significant change compared to baseline level of venous BP.
  2. In each group of ten rabbits six animals were used for ink perfusion and four were used for DSA examination/.