Document Classification

Section Type: RESULTS

Text: During the observation period only in Group 1 patients heart rate variability parameters changed significantly : RR (Group 1 = +18. 3 + / - 21. 3 ; Group 2 = +4. 2 + / - 5. 2, p = 0. 000), pNN50 (Group 1 = 45. 0 + / - 38. 9 ; Group 2 = +24. 2 + / - 34. 7, p = 0. 011), HF (Group 1 = +81. 6 + / - 124 ; Group 2 = -28. 7 + / - 75. 4, p = 0. 014) and LF/HF ratio (Group 1 = -26. 0 + / - 16. 1 ; Group 2 = -4. 9 + / - 6. 1, p = 0. 062).