Case #1

Case #2

Case #3

Case #4

Case #5

Case #6

Maternal Age

36

39

33

38

41

41

Gravidity and parity

G2 P1*

G1

G1

G1

G2 P1*

G1A1

Cervical length (mm)

10

25

16

28

25

22

Cervical funneling

Yes (25 mm)

No

No

No

No

No

Amniotic fluid sludge

Yes

No

No

No

No

No

Chorionicity

Dichorionic, diamniotic

Dichorionic, diamniotic

Dichorionic, diamniotic

Monochorionic, diamniotic

Monochorionic, diamniotic

Monochorionic, diamniotic

Assisted reproduction procedure or ovulation induction

No

In vitro fertilisation

No

In vitro fertilisation

No

In vitro fertilisation

Risk factors

Bacterial vaginosis

Thrombophilia

Bacterial vaginosis

Cervical conization

Family stress

Thrombophilia

Urinary infection

Anemia

Urinary infection

Thrombophilia

Urinary infection

Bleeding in the first trimester

Hypothyroidism

Bleeding in the first trimester

Hypothyroidism

Family stress and depression

Family stress and depression

Gestational age at cervical pessary insertion (completed weeks)

22

24

24

26

16

18