Table 2.

Overview of studies on post-induction hypotension in C-section

Name and year	n =	Timing	Recording length	Measures that predicted hypotension
Hanss et al. (2005) [22]	60	DBS and DOS	5 min	LF/HF
				LF
				HF
Hanss et al. (2006) [23, 33]	40	DBS and DOS	5 min	LF/HF
Bishop et al. (2017) [24]	102	DOS	5 min	LF/HF
Chamchad et al. (2004) [26]	22	DOS	10 min	pPD2
Bolea et al. (2017) [17]	51	DOS	7 min	ApEn
Prashanth et al. (2017) [25]	108	DOS	8 min	ANSindex
Jendoubi et al. (2020) [28]	100	DOS	N/A	No predictors
Yokose et al. (2015) [27]	81	DOS	3 min	No predictors
Helmy Shehata et al. (2019) [29]	41	DOS	N/A	No predictors

DOS day of surgery, DBS day before surgery