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Table 3 Preoperative endocrine parameters (24-hour hormones in urine)

From: Laparoscopic and open surgery for pheochromocytoma

Hormones Laparoscopic Open P-value
  surgery surgery value
  N = 7 N = 9  
Noradrenalin (nmol) 2000 (444–3819) 1922 (579–7492) ns
Adrenalin (nmol) 440 (75–870) 570 (180–1795) ns
Vanillylmandelic 86 (22–121) 72 (30–100) ns
acid (μmol)    
  1. Values expressed as median (range) ns – not significant.