Ultrasound Guided Stellate Ganglion Block in Postmastectomy Pain Syndrome: A Comparison of Ketamine versus Morphine as Adjuvant to Bupivacaine

Table 1

Patients characteristics (values are mean ± SD).

	Group 1	Group 2	Group 3
	(𝑛=20)	(𝑛=19)	(𝑛=20)
Age (years)	56.4 ± 8.9	50.0 ± 12.3	51.4 ± 10.3
Weight (Kg)	81.2 ± 7.9	75.9 ± 9.1	79.8 ± 10.2
Height (cm)	159.2 ± 5.3	161.3 ± 2.7	156.7 ± 9.3