Please select the eligibility criteria that correspond to the clinical trial below.
Title: Very Early Surfactant Without Mandatory Ventilation In Premature Infants Treated With Early Continuous Positive Airway Pressure-A Randomized Controlled Trial
Brief Summary: The present study will test the use of very early nasal continuous airway pressure(NCPAP)with and without surfactant in premature infants with clinical evidence or respiratory distress syndrome. We hypothesize that premature infants exposed to very early NCPAP and surfactant will require less mechanical ventilation compared to those premature infants exposed to NCPAP alone.


Options:
A: Inclusion Criteria:

* Infants with a minimal gestational age of 24 weeks 0 days to 27 completed weeks (up to 27 6/7ths) by best obstetrical estimate
* Infants who will receive full resuscitation as necessary, i.e., no parental request or physician decision to forego resuscitation
* Infants whose parents/legal guardians have provided consent for enrollment, or
* Infants without known major congenital malformations

Exclusion Criteria:

* Any infant transported to the center after delivery
* Infants whose parents/legal guardians refuse consent
* Infants born during a time when the research apparatus/study personnel are not available
* Infants \< 24 weeks 0 days or \> 28 weeks 0 days, completed weeks of gestation
B: Inclusion Criteria:

* Gestational age of 27 to 31 6/7 weeks,
* Postnatal age between 15 and 60 minutes,
* Supplemental oxygen requirement or evidence of increased work of breathing (tachypnea, intercostal retractions, nasal flaring, or grunting), and
* Prenatal consent.

Exclusion Criteria:

* Apgar score less than 2 at 5 minutes,
* Intubation prior to randomization,
* Prenatal diagnosis of major congenital anomalies,
* Prolonged rupture of membranes of greater than 3 weeks duration, and
* Infants who were likely to be transferred to another center soon after birth were not enrolled in the study.
C: Inclusion Criteria:

* All infants born at the units belonging to the South American Neocosur Network with a birthweight between 800 to 1500g and breathing spontaneously at birth or after hand bagging with Neopuff or transient intubation are eligible.
* An informed consent form should be obtained preferable prenatal.

Exclusion Criteria:

* Acute life threatening congenital malformations or genetics diseases.
* Apgar score equal or less than 3 at 5 minutes
* Disapproval of informed consent.
D: Inclusion Criteria:

* Preterm neonates with a gestational age (GA) of 25+0 - 28+6 completed weeks.
* Inborn neonates.
* In case of twins, both neonates will be included in the same treatment arm.
* Parental written informed consent for participation in the study obtained on admission into the hospital or prior to delivery.

Exclusion Criteria:

* Evidence of severe birth asphyxia, that is an APGAR score below 3 at 5 minutes of age.
* Need for endotracheal intubation for cardiopulmonary resuscitation or insufficient respiratory drive.
* Known genetic or chromosomal disorders.
* Delivered to mothers with ruptured membranes of more than 3 weeks duration.
* Potentially life-threatening conditions unrelated to immaturity.
* Participation in another clinical trial of any placebo, drug, biological, or device conducted under the provisions of a protocol.

Answer: B