Table 1.
Pregnancy outcome and maternal and placental characteristics.
| Cases | Age of onset of maternal symptoms (WoG) | Term of delivery (WoG) | Time between maternal symptoms and delivery (days) | Pregnancy outcome | Maternal symptoms | Fetal weight (g) | Fetal weight (percentile) | Histological placental lesions |
|---|---|---|---|---|---|---|---|---|
| 1 | 32 | 34 + 1 | 15 | IUFD | Influenza-like illness + hyperthermia | 1640 | 3-5th | Diffuse TN + intervillositis + PFD + IH |
| 2 | 21 | 23 | 14 | IUFD | Influenza-like illness | 585 | <3rd | Diffuse TN + intervillositis + PFD + IH |
| 3 | 18 + 4 | 19 + 4 | 7 | IUFD | Influenza-like illness | 240 | <3rd | Diffuse TN + intervillositis + PFD + IH |
| 4 | 19 + 3 | 21 | 11 | IUFD | Hyperthermie | 380 | 10-25th | Diffuse TN + intervillositis + PFD + IH |
| 5 | 34 | 36 + 6 | 20 | IUFD | Influenza-like illness | 2990 | 50th | Diffuse TN + intervillositis + PFD + IH |
| 6 | unknown | 38 + 5 | unknown | Cesarean section for bradycardia and preeclampsia live newborn | Hyperthermia | 2440 | <5th | Focal TN + intervillositis + PFD |
| 7 | 30 | 33 | 21 | Cesarean section live newborn | Influenza-like illness | 1940 | 20-50th | Focal TN + intervillositis + PFD |
| 8 | 33 | 33 | 0 | Cesarean section live newborn | Influenza-like illness | 1730 | 30th | Focal TN + intervillositis + PFD |
| 9 | 35 | 37 + 3 | 18 | Cesarean section live newborn | Asymptomatic | 2465 | 10-25th | Focal TN + intervillositis + PFD |
| 10 | 35 + 4 | 40 + 4 | 35 | Vaginal delivery live newborn | Hyperthermia | 2860 | 5-10th | Focal TN + intervillositis + PFD |
| 11 | 32 | 39 | 49 | Vaginal delivery live newborn | Influenza-like illness | 2550 | 3-5th | MVM |
| 12 | 25 | 36 + 5 | 82 | Vaginal delivery live newborn | Hypoxemic pneumonia | 4250 | 95th | Normal |
| 13 | 31 | 32 | 7 | Cesarean section live newborn | Hypoxemic pneumonia | 1800 | 70th | Normal |
| 14 | 32 | 33 | 7 | Cesarean section live newborn | Influenza-like illness | 1700 | 30th | Normal |
| 15 | 31 + 3 | 37 | 45 | Cesarean section live newborn | Asymptomatic | 3100 | >75th | Normal |
| 16 | 30 | 30 + 5 | 5 | Cesarean section live newborn | Hypoxemic pneumonia | 1600 | >50th | MVM |
| 17 | 39 | 41 | 14 | Vaginal delivery live newborn | Asymptomatic | 4210 | >95th | MVM |
| 18 | 35 | 39 + 4 | 32 | Vaginal delivery live newborn | Asymptomatic | 3350 | >95th | Normal |
| 19 | 38 + 2 | 39 + 2 | 7 | Cesarean section live newborn | Unknown | 2890 | 25th | Normal |
| 20 | 29 + 2 | 30 | 5 | Cesarean section live newborn | Hypoxemic pneumonia | 1620 | >75th | Chorangiosis |
| 21 | 28 | 28 + 2 | 2 | Cesarean section live newborn | Hypoxemic pneumonia | 1100 | >50th | Chorangiosis |
| 22 | 37 | 39 + 1 | 15 | Vaginal delivery live newborn | Unknown | 2250 | <3rd | MVM |
| 23 | 35 | 38 + 1 | 22 | Vaginal delivery live newborn | Hypoxemic pneumonia | 3350 | >75th | Normal |
| 24 | 33 + 2 | 34 + 1 | 6 | Cesarean section live newborn | Hypoxemic pneumonia | 1935 | >25th | MVM |
| 25 | 13 | 40 + 6 | 195 | Vaginal delivery live newborn | Influenza-like illness | 2680 | <3rd | MVM |
| 26 | 34 + 2 | 41 + 5 | 46 | Vaginal delivery live newborn | Hypoxemic pneumonia | 3300 | 25th | Normal |
| 27 | 28 | 33 + 3 | 38 | Vaginal delivery live newborn | Unknown | 2130 | >75th | MVM |
| 28 | 25 | 40 + 4 | 109 | Vaginal delivery live newborn | Influenza-like illness | 3730 | 59th | Normal |
| 29 | 34 + 3 | 39 + 4 | 36 | Vaginal delivery live newborn | Unknown | 3120 | >25th | MVM |
| 30 | 26 | 38 + 2 | 86 | Vaginal delivery live newborn | Unknown | 2990 | 47th | Normal |
| 31 | 31 + 4 | 32 + 6 | 9 | Vaginal delivery live newborn | Hypoxemic pneumonia | 1505 | 25th | FVM |
| 32 | Unknown | 29 | Unknown | Vaginal delivery live newborn | Unknown | 1230 | >50th | Chorioamnionitis |
| 33 | 34 + 5 | 34 + 6 | 1 | Cesarean section live newborn | Asymptomatic | 2350 | >25th | MVM |
| 34 | 17 | 18 + 5 | 12 | Twins pregnancy: miscarriage | Unknown | 120 and 240 | 10th and >50th | Chorioamnionitis |
| 35 | 36 | 39 | 21 | Vaginal delivery live newborn | Asymptomatic | 3840 | >95th | Normal |
| 36 | 21 | 38 | 119 | Vaginal delivery live newborn | Influenza-like illness | 3715 | >95th | MVM |
| 37 | 32 | 39 | 49 | Vaginal delivery live newborn | Influenza-like illness | 3440 | >50th | Normal |
| 38 | 33 + 1 | 41 | 55 | Vaginal delivery live newborn | Unknown | 4200 | 90th | MVM + chorioamnionitis |
| 39 | 31 | 37 | 42 | Vaginal delivery live newborn | Unknown | 3390 | >75th | Normal |
| 40 | 4 | 41 | 259 | Vaginal delivery live newborn | Influenza-like illness | Unknown | x | Normal |
| 41 | 10 | 39 + 6 | 209 | Vaginal delivery live newborn | Unknown | 3090 | 20th | Focal intervillositis |
| 42 | 28 | 39 | 77 | Vaginal delivery live newborn | Influenza-like illness | 3470 | 47th | Chorioamnionitis |
| 43 | 4 | 39 | 245 | Vaginal delivery live newborn | Unknown | 3600 | 75th | Normal |
| 44 | 34 + 3 | 39 + 4 | 36 | Vaginal delivery live newborn | Unknown | 3120 | 25th | MVM |
| 45 | 18 + 5 | 28 + 5 | 70 | Vaginal delivery live newborn | Unknown | 1030 and 1220 | 25th and 50th | MVM |
| 46 | 34 | 40 + 4 | 46 | Vaginal delivery live newborn | Unknown | 3470 | 60th | Chorioamnionitis |
| 47 | 32 | 40 + 2 | 58 | Vaginal delivery live newborn | Unknown | Unknwon | X | MVM + chorioamnionitis |
| 48 | 13 | 23 + 3 | 73 | Miscarriage | 430 | NA | X | MVM + chorioamnionitis |
| 49 | 20 + 3 | 40 + 3 | 143 | Vaginal delivery live newborn | Unknown | 3260 | 40th | MVM + chorioamnionitis |
| 50 | 24 | 39 + 5 | 110 | Vaginal delivery live newborn | Unknown | 3260 | 25th | MVM |
Abbreviations: IUFD, intrauterine fetal death; TN, trophoblastic necrosis; PFD, perivillous fibrin deposition; IH, intervillous hemorrhage; MVM, maternal vascular malperfusion; FVM, fetal vascular malperfusion.