Surgical factors affecting oculocardiac reflex during strabismus surgery

BMC Ophthalmology

Table 2 Surgical measurements stratified by the occurrence of oculocardiac reflex

	OCR (n = 64)	without OCR (n = 35)	p
Number of operated muscle (range)	1.6 ± 0.5(1–2)	1.7 ± 0.5(1–2)	0.56^a
Operated muscle (%)			0.36^b
Lateral rectus muscle	59(72)	63(79)
Medial rectus muscle	17(21)	9(11)
Superior rectus muscle	2(2)	1(1)
Inferior oblique muscle	4(5)	7(9)
Baseline HR, beat/min	122.2 ± 17.5(78–162)	131.1 ± 16.3(89–166)	0.06^a
Two muscle surgery (%)	38(59)	22(63)	0.39^a
Surgery (%)
Recession	70(41)	76(43)	0.02^b
Resection	12(7)	3(2)
Oblique surgery	4(3)	7(4)

Recession surgery included the rectus muscle and inferior oblique muscle recession, OCR, oculocardiac reflex; HR, heartrate
^aMann-Whitney test
^bChi-square test

ISSN: 1471-2415