Table 2.
Characteristics of studies that included referred patientsa
| Study author and year | Gestational age at fetal RPD measurement | Cohort size | No. (%) assessed for postnatal outcomes
|
No. (%) of children with postnatal outcome
|
No. (%) of kidneys with postnatal outcome
|
||||
|---|---|---|---|---|---|---|---|---|---|
| Ultrasound for RPD · Renogram for obstruction · MCUG for VUR | RPD · Early (<6 wk) · End of study | Obstruction | VUR | RPD | Obstruction | VUR | |||
| Johnson et al. 1992 | >20 wk, mean 30 wk | 47 | 47 (100%) | 17 (36%) | 10 (21%) | 4 (9%) | 8 (16%) | Not stated | Not stated |
| 27 (57%) | 5 yr: 17 (36%) | ||||||||
| 27 (57%) | |||||||||
| Langer et al. 1996 | Min 15 wk mean 21 wk, 33 wk | 95 | 89 (94%) | Not stated | Not stated | Not stated | Not stated | Not stated | Not stated |
| not stated | 19 (21%) | ||||||||
| not stated | |||||||||
| Kitagawa et al. 1998b | Min 17 wk, mean 19 wk, 25 wk, 35 wk | 65 | 65 (100%) | Not stated | 2 (3%) | 2 (3%) | Not stated | Not stated | Not stated |
| not stated | 3 yr: 43 (66%) | ||||||||
| not stated | |||||||||
| Liang et al. 2002b | 33 wk, mean 33 wk | 18 | 18 (100%) | 16 (89%) | 4 (19%) | 0 (0%) | 12 (57%) | Not stated | 0 (0%) |
| 7 (39%) | 6 yr: 9 (50%) | ||||||||
| 16 (89%) | |||||||||
| Aksu et al. 2005 | Min 20 wk, mean 33 wk (5 to 9 mm, 10 to 14 mm) | 156 | 156 (100%) | Not stated | Not stated | Not stated | 5 to 9 mm: 57 (68%) 10 to 14 mm: 75 (78%) | 107 (55%) | 24 (12%) |
| not stated | Not stated | ||||||||
| 156 (100%) | |||||||||
| Gramellini et al. 2006b | Min 19 wk, mean 23 wk | 133 | 133 (100%) | Not stated | Not stated | Not stated | 69 (52%) | 9 (7%) | 16 (12%) |
| not stated | Not stated | ||||||||
| 133 (100%) | |||||||||
a
RPD, renal pelvis dilation; VUR, vesicoureteric reflux; MCUG, micturating cysto-urethrogram.
b
Authors stated that fetuses with anatomical or chromosomal abnormalities were excluded.