Table 2: Comparative outcomes in groups studied with

respect to age, indication and site of occlusion.

Study

Patients

Intervention group (ball)

Non-intervention group (no ball)

Indication

Occlusion site

n

Gender

Age

(years)

Mean ± SD

n

Gender

Age

(years)

Mean ± SD

H

M

H

M

Ioscovich A

2023

21

10

0

10

35 ± 5.02

11

0

11

33.8 ± 4.5

Abnormal

placentation

Infrarenal

abdominal aorta

Hao Z

2016

41

18

11

7

34.2 ± 2.5

23

14

9

34 ± 2.1

Complex

acetabular

fracture

Infrarenal

abdominal aorta

Zeng C

2017

86

48

0

48

32.3 ± 5.27

38

0

38

33.1 ± 5.23

Abnormal

placentation

Infrarenal

abdominal aorta

Filho S

2019

35

28

0

28

33 (24-43)*

7

-

-

-

Abnormal

placentation

Bilateral

internal

iliac artery

Huo F

2021

33

17

0

17

32.82 ± 4.45

16

0

16

34.44 ± 4.79

Abnormal

placentation

Infrarenal

abdominal aorta

Kaneda H

2017

518

(Hysterectomy)

12

0

12

49.5 (36-62)*

506

0

506

47 (34-69)*

Large uterine

cervical fibroid

Bilateral

internal

iliac artery

305

(Miomectomy)

10

0

10

35.5 (28-40)*

295

0

295

38 (23-63)*

Kyozuka H

2023

37

13

0

13

37.5 (30.8-41)*

24

0

24

35 (32-38)*

Abnormal

placentation

Supraceliac

aorta

Papillon-

Smith J

2020

79

47

0

47

35 (22-51)*

32

0

32

34 (25-44*)

Abnormal

placentation

Internal

iliac artery

Ye Y

2023

364

278

0

278

34 (30-37)*

86

0

86

34 (32-36)*

Abnormal

placentation

Infrarenal

abdominal aorta

Wu Q

2016

268

230

0

230

29.5 ± 3.6

38

0

38

30.4 ± 4

Abnormal

placentation

Infrarenal

abdominal aorta

Peng W

2020

586

252

0

252

32.69 ± 4.62

296

0

296

32.74 ± 4.84

Abnormal

placentation

Infrarenal

abdominal aorta

Zhao X

2016

57

23

13

10

44.36 ± 13.34

34

15

19

45.41 ± 15.7

Pelvic or hip

tumor resection

Infrarenal

abdominal aorta

Duan X

2018

45

22

0

22

32,1 ± 6.9

23

0

23

31.7 ± 8.5

Abnormal

placentation

Infrarenal

abdominal aorta

Wang Y

2020

623

623

0

623

-

23

0

-

-

Abnormal

placentation

Infrarenal

abdominal aorta

Peng Y

2020

104

48

0

48

32.08 ± 3.94

56

0

48

33.46 ± 4.53

Abnormal

placentation

Bilateral

internal

iliac artery

Zhao Z

2020

121

57

33

24

48 (18-70)*

64

34

30

45 (18-70)*

Pelvic or hip

tumor resection

Infrarenal

abdominal aorta

Zangh Y

2018

56

30

20

10

42 ± 18

26

17

9

50 ± 19

Pelvic or hip

tumor resection

Infrarenal

abdominal aorta

* Median and (range).

SD = Standard deviation.