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Table 2 Comparison of the operative and post-operative results of patients

From: FOCUS harmonic scalpel compared to conventional hemostasis in open total thyroidectomy - a prospective randomized study

  Group I (n = 389) Group II (n = 389) P value
Surgical time, min(mean ± SD) 125 ± 30.4 79 ± 21.5 <0.001
PTH, pmol/l (mean ± SD) 2.64 ±1.09 2.75 ± 1.22 NS
Calcium, mmol/l (mean ± SD) 2.07 ± 0.29 2.11 ± 0.34 NS
Transient hypoparathyroidism 40 36 NS
Symptomatic hypocalcemia 27 14 <0.05
Hemorrhage (re-operation) 1 0 NS
Transient recurrent nerve palsy 1 0 NS
Hospital stay, d(mean ± SD) 2.9 ± 1.0 2.6 ± 0.9 <0.001
  1. SD stand deviation, NS not significant.