RESUMEN
OBJECTIVE: Migration of peripherally inserted central venous catheters (PICCs) is known to happen in neonates with changes in position of the upper limb. The aim of this study is to document the migration pattern of PICCs at 24 hours postinsertion, while controlling for arm position. STUDY DESIGN: This was a single-centered prospective study of 100 consecutively placed PICCs in a level III neonatal intensive care unit (NICU). All PICCs were inserted by one of two certified NICU nurses in either upper or lower limb. An X-ray was obtained immediately after insertion and again at 24 hours postinsertion; both were reviewed by a single pediatric radiologist. RESULTS: Of the PICCs placed in basilic veins, 35.5% migrated toward the heart, 14.5% migrated away from the heart, and 50% did not change in position. Of the PICCs placed in cephalic veins, 21% migrated toward the heart, 15.7% migrated away from the heart, and 63.3% did not change in position. None of the PICCs placed in the saphenous veins migrated. CONCLUSION: After controlling for arm position, 47% of PICCs placed in the upper limb migrated at 24 hours postinsertion with 32.6% migrating toward the heart. We recommend a follow-up X-ray at 24 hours postinsertion for all catheters placed in the upper limb.
Asunto(s)
Taponamiento Cardíaco/prevención & control , Cateterismo Venoso Central/métodos , Cateterismo Periférico/métodos , Catéteres Venosos Centrales/efectos adversos , Migración de Cuerpo Extraño , Derrame Pericárdico/prevención & control , Brazo , Cateterismo Venoso Central/efectos adversos , Cateterismo Periférico/efectos adversos , Femenino , Humanos , Recién Nacido , Unidades de Cuidado Intensivo Neonatal , Pierna , Masculino , Estudios ProspectivosRESUMEN
OBJECTIVE: To follow the natural progression of fetal renal pyelectasis detected in the mid second trimester ultrasound in an unselected obstetric population. STUDY DESIGN: Single-centered, retrospective study that included all level II ultrasounds done from Jan 2008 to Dec 2009. The initial level II ultrasound was done in the mid second trimester. The renal pyelectasis detected on the antenatal ultrasound (AUS) was classified as mild (5-7 mm), moderate (7.1-9 mm), or severe (>9.1 mm). Postnatal outcomes were classified as "Resolved", "Improving", or "Worsened". RESULTS: Ninety-eight cases of fetal renal pyelectasis were detected. Sixteen patients were excluded. Of the remaining 82 cases of fetal pyelectasis, 32 (39%) were mild, 21 (25.6%) moderate, and 29 (35.4%) severe. In 74 (90.2%) infants, pyelectasis resolved, remained stable, or improved in the postnatal ultrasound. In eight (9.8%) infants, pyelectasis worsened. CONCLUSION: Totally, 90.2% of pyelectasis detected on AUS resolved spontaneously, remained stable or improved. The magnitude of fetal renal pyelectasis did not correlate with postnatal outcome. All fetal renal pyelectasis ≥ 5 mm detected on the mid second trimester ultrasound should be followed antenatally. Those fetuses with persistent pyelectasis should be evaluated after birth and followed until resolution of pyelectasis or until a diagnosis is obtained.