Effects of spinal anaesthesia and intravenous general anaesthesia on the absorption of normal salinein patients undergoing hysteroscopic endometrial resection: an observational study

Table 4 Intraoperative and postoperative bradycardia and hypotension, and postoperative nausea and vomiting and urinary retention

Groups	n	Nausea and vomiting	Bradycardia	Hypotension	Urinary retention
S₁	36	3	6	4	2
S₂	27	3	4	3	2
PF₁	33	7	5	5	0
PF₂	30	7	6	4	0
X² values		3.896	0.361	0.333	4.303
P values		0.043	0.948	0.954	0.231

Values are number of patients. S₁: spinal anesthesia with operation time ≤ 30min; S₂: spinal anesthesia with operation time > 30 min; PF₁: propofol-fentanyl intravenous anesthesia with operation time ≤ 30min; PF₂: propofol-fentanyl intravenous anesthesia with operation time > 30 min

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