Submicroscopic and Asymptomatic Congenital Infection by Plasmodium vivax or P. falciparum in Colombia: 37 Cases with Placental Histopathology and Cytokine Profile in Maternal and Placental Blood
Table 4
Placental histological findings according to the presence of Plasmodium in cord.
(a) Prevalence of histologic event
Sector/event
Plasmodium in cord
No
Yes
Decidua
n = 100
%
n = 37
%
Immune cells
61
61
26
70
0.317
Atherosis
46
46
12
32
0.254
Necrosis
2
2
1
3
0.803
Abruptio
49
49
13
35
0.148
Villi
Infarction
84
84
31
84
0.976
Edema
86
86
26
70
0.034
IVS
Immune cells
100
100
100
100
1.000
Hemorrhage
95
95
36
97
0.560
Thrombosis
50
50
18
49
0.888
Calcifications
70
70
25
68
0.784
In the villi, the following variables were also evaluated: (1) villi/field, (2) capillaries/villus, (3) immune cells, (4) fibrinoid deposits, and (5) syncytial knots. In all placentas, these variables were always present and therefore we do not apply the presentation in terms of present versus absent. The event is always present, either with or without the presence of Plasmodium infection, which varies in the magnitude of the event.
