[Factors associated with atelectasis following extubation in very low weight premature newborns].

Background: Atelectasis is a decrease of lung volume caused by airway obstruction or pressure on the external part of the lung. It is common after surgery and extubation. The purpose of this investigation was to determine factors related with alectasis following extubation in preterm neonates with a weight under 1250 g who were referred to a neonatal intensive care unit.

[Associated factors with complications of the use of parenteral nutrition in premature infants].

Introduction: Associated factors with complications of the parenteral nutrition (PN) in the preterm infant have not been well studied and there are some controversies in the literature.

Objective: To identify associated factors with complications of the use of PN in preterm patients Neonatalogy Service.

Material And Methods: We performed a longitudinal, observational, retrospective, comparative study (case-control) from January 2008 to December 2010, of the infants who received PN support covering the inclusion criteria (newborns 28 to 36 weeks gestational age from 0 to 28 days after birth, who received PN for at least 6 days).

[An index internal diameter ductus arteriosus/body surface area as a need for closure of duct in the preterm newborn].

Objective: To determine a rate of internal diameter (ID), the narrowest of ductus arteriosus (DA)/body surface area (BSA) in preterm newborns (PTNB) for need for closure of DA either medically or surgically.

Material And Methods: Prospective (cohort), held in a Neonatology Service in February 2010 to January 2011. Inclusion criteria were PTNB from 28 to 36 weeks of gestation from 0 to 28 days after birth, which confirmed diagnosis of patent ductus arteriosus (PDA) by echocardiogram, taking the narrowest ID, who did not present heart complex congenital or other major malformations in other systems without pulmonary arterial hypertension, that had not received drug treatment with prostaglandin inhibitors to close the DA.

[Mechanical ventilation parameters associated to barotrauma in a neonatal intensive care unit].

Objective: To identify the parameters of mechanical ventilation related to barotrauma and to identify associated diseases.

Material And Methods: There was a partial retrospective study which included all the files and/or newborns (NB) who were in the Neonatal Intensive Care Unit during March 2003 to April 2008 met the inclusion criteria. Two groups were conformed, the group A, cases (those with barotrauma) and B controls (that did not show it).

[Features of hospital-acquired infections in newborns with culture-positive].

Objective: To determine the prevalence of nosocomial infection (NI) in newborns (NB) as well as the etiology, frequency mortality related to these infections in a tertiary-care hospital.

Material And Methods: A retrospective epidemiological study was carried out with NB admitted to a tertiary-care neonatology hospital service from January 2006 to December 2008 who complied with selection criteria. All NB between the gestational ages of 25 to 44 weeks, NI supported by positive culture and either local or systemic infection were included.

[Variations of vital signs and peripheral oxygen saturation in critically ill preterm newborn, after sponge bathing].

Objective: To determine the variability of the vital signs (temperature, heart rate and respiratory frequency), skin coloration and peripheral oxygen saturation in critically ill preterm newborns (CI PTNB) before, during and after sponge bathing as well as to determine the possible presence of secondary complications of this procedure.

Material And Methods: We performed a quasi-experimental study (experimental, prospective, comparative and clinical study with intervention) May to December 2008, in a Neonatal Intensive Care Unit. We included CI PTNB of 0 to 28 days of extrauterine life who have practiced in the routine sponge bathing.

[Associated factors to extubation failure of neonates and infants with bronchopulmonary dysplasia].

Introduction: The extubation failure is a common problem in newborn (NB) and infants diagnosed with bronchopulmonary dysplasia (BPD), a situation that prolongs the mechanical ventilatory support (MVS) and increases the risk of further laryngotracheal and pulmonary damage that predisposes to fail in the procedure. There are no studies in the literature about this problem.

Objective: To identify associated factors to extubation failure in newborns and infants with diagnosis of BPD.

[Associated factors to extubation failure in the term newborns from a neonatal intensive care unit].

Introduction: The mechanical ventilator support (MVS) it is a procedure which improves survival of critically ill newborns (NB), but is not risk free one of them is tracheal damage reintubations by extubation failure. Knowledge that there is the medical literature is about preterm infant and there is not information about term NB.

Objective: To establish that factors are associated to the unsuccessful extubation in the term NB from 37 to 42 weeks of gestational age.

[Predictors factors for the extubation failure in two or more times among preterm newborn].

Introduction: With the ventilatory mechanical attendance has been prolonged the life of the preterm newborn (PTNB) critically sick and during that lapse many occasions it is necessary reintubation to PTNB in two or more times with the subsequent damage that makes enter to the patient to a vicious circle with more damage during the same reintubated. The objective of this study was to determine the factors that predict the extubation failure among PTNB from 28 to 36 weeks of gestational age in two or more times.

Material And Methods: It was considered extubation failure when in the first 72 hours of being had extubated the patient; there was reintubation necessity, independent of the cause that originated it.

[Predictor factors for the production of bronchopulmonary dysplasia in the preterm newborn].

Introduction: The bronchopulmonary dysplasia (BPD) is a lung illness chronicle that is developed in preterm newborn (PTNB) mainly, secondary to multiple factors of risk which have not been studied completely.

Objective: To determine the predictors factors (of risk factors) for the production of BPD in the PTNB of 28 at 36 weeks of gestational age.

Material And Methods: Eighty medical records from January 2004 to May 2006 of PTNB that there was received mechanical attendance to the ventilation (MAV) at least 24 hrs were reviewed retrospectively.

[Risk factors associated to complications of the mechanical ventilatory assistance in the premature newborn].

Objective: To determine risk factors associated with the presence of complications with mechanical ventilatory support (MVS) in the preterm infants (PI).

Methods: One hundred thirty medical records of PI that had been discharged by amelioration or death were reviewed retrospectively. They were divided in two groups: group A, PI that had presented complications during MVS (cases) and B, PI with MVS, but that had not presented complications due to the procedure (controls).

[Comparison of oxygen saturation among newborns with bronchopulmonary dysplasia during and after feeding].

Background: Bronchopulmonary dysplasia (BPD) is associated with frequent events of hypoxemia specially during feeding.

Objective: Determine peripheral oxygen saturation (SpO2) among infants with BPD before, during and after feeding.

Methods: Patients with diagnosis of BPD were prospectively studied between July-September, 2005.

[Oxygen peripheral saturation using pulse oxymetry among healthy term newborns at Mexico's altitude (2240 m)].

Background: Oxygen peripheral saturation (SpO2) is crucial for an adequate management of critically-ill newborns infants (NB). The objective of the present study was to determine SpO2 by pulse oxymetry among healthy term and preterm NBs at an altitude of 2240 m above sea level.

Methods: Observational, cross-sectional and comparative.

[Final outcome of preterm neonates with and without surgical treatment of patent ductus arteriosus].

Background: Patent ductus arteriosus (PDA) in the preterm neonate (PTN) with respiratory distress is frequent and there are controversies related to its medical and/or surgical treatment. The goal of the present study was to compare the outcome between the two groups of newborns with PDA, operated (group A) and not operated on (group B); and to determine the internal diameter (DI) in ductus arteriosus (DA) on outcome.

Material And Methods: The clinical records of PTN hospitalized from January 1999 to January 2002, discharged either by improvement or death, were retrolectively analyzed.

[Predictive factors of failure extubation among preterm infants].

Objective: To determine the factors that lead to extubation failure among preterm newborns (PTN).

Material And Methods: Failure was determined when patients had to be reintubated during the first 72 hours. Critically-ill preterm newborns needing mechanical assisted ventilation at least during 24 hours were studied prospectively.

[Predisposing risk factors that participate in neonatal sepsis mortality rate].

Background: Neonatal sepsis is a frequent diagnosis in neonatal intensive care units and has been associated with a high mortality rate.

Objective: To determine the possible association between various risk factors and neonatal sepsis mortality rate.

Design: Cohort case control.

Comparison of available oxygen before and after red blood cell transfusion in critically-ill premature newborn infants of 28-36 weeks gestational age, to asses its possible usefulness in clinical practice.

Background: Wardrop's formula to estimate available oxygen has been used to assess non-critically ill pre-term newborn infants (PTNIs) of 28-32 weeks gestational age who may need red blood cell transfusion ( RBCT ). The use of this formula has not been analyzed in critically-ill PTNIs. The objective of this study was to compare available oxygen levels before and after RBCTs in critically-ill PTNIs of 28-36 weeks gestational age, and to assess is potential usefulness.

[Risk factors for presence of complications of the mechanical ventilatory assistance in the newborn].

Background: The mechanical ventilatory assistance (MVA) is a procedure that is used very often in the neonatal intensive care units but its use its linked to a lot of complications. The objective of this study was to determine the risk factors for the presence of complications of the MVA in the newborns infants.

Material And Methods: One hundred thirty five medical records from January 98 to June 2000 of newborns that had been discharged by amelioration or death were reviewed retrospectively.

Variations of vital signs, skin color, behavior and oxygen saturation in premature neonates after sponge bathing. Possible complications.

Background: Although sponge bathing is a routine practice in preterm newborn infants, there is evidence suggesting that this procedure is not always innocuous. The objective of this study was to determine whether the sponge bath induces significant changes in vital signs, skin coloration, behavior and peripheral oxygen saturation in the non-critically ill preterm newborn infants, and to assess possible complications.

Material And Methods: Seventy nine preterm neonates were prospectively studied between August and November 1999.