Creating an Artificial Night on Physiological Changes in Preterm Infants

Effects of creating an artificial night on physiological changes, weight and feeding tolerance in preterm infants.

Introduction:Nowdays,with medical advances in intensive care increased chance of survival in premature infants.One of the major concerns exposure to high light levels in neonate & subsequent it is increase in metabolism rate.So,this study was conducted to determine the effect of creating an artificial night on physiological changes, weight and feeding tolerance in preterm infants.

Methods: This is a randomized clinical trial dual group study, 38 preterm infants (gestational age of 30-34weeks)due to prematurity hospitalized at Ghaem NICU,were evaluated within 10 days. Infants were divided into two groups of 1200-1700 and 1701-2200g based on the weight and the weight of each group were randomized into artificial night(dark period was from 19 to 7 during incubator was covered with linen cloth & light period was from 7 to 19 removed the cover) and control groups(continuous lighting). Mothers & infants through questionnaires,interviews,observation & document completion, changes in physiologic & weight befor entering the study & then physiologic changes twice a day,weight & feeding tolerance were collected daily.Data were analyzed using spss v.16 software.

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Key information

Conditions

Physiologic Changes

Age range

30 week–34 week

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2 / Phase 3

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Premature newborn infants with gestational age of 30-34 weeks Birth weight of 1200-2200g Taking care and supervision in the incubator to measure weight and grow up Keeping the axillary temperature in the range of 36-37° C Keeping the heart rate in the range of 100 to 160 beats per minute Breast feeding through a nasogastric tube or gastric orally Healthy infants without congenital anomalies No history of taking specific drugs or alcohol by mother during the pregnancy. Mother's lack of addiction

Exclusion criteria

Illness of the infant (affecting with secondary sepsis, seizures; increased or decreased blood pressure, successive apnea, feeding intolerance or feeding stoppage) Starting phototherapy Discharge of the infant earlier than 10 days Parents' lack of consent with the study

Treatment and study plan

artificial night

Other

Infants in the intervention group received light cyclic with pattern 12 hours. Light period was from 7 to 19 during which the infants were put in the normal environmental light and dark period was from 19 to 7 during which was the infants' incubator was covered with linen cloth. The vital signsand & arterial oxygen saturation of the infants in the intervention group were controlled before covering the incubator i.e. at 19. Also, the infant's vital signs were again monitored at 7 am.The infant weighed in every day at 7 am during the 10 days of study. Feeding tolerance was daily determined at 8 am, using nasogastric tube or orogastric tube to control residue as well as to review the presence or absence of abdominal distention, vomiting.

Other names: intervention

Primary outcomes

effect of creating an artificial night on physiological changes, weight and feeding tolerance in preterm infants

Time frame: 1 years

physiological changes including:systolic blood pressure & diastolic blood pressure(mm/hg),resoiratory rate(number of minutes),pulse rate(beats per minute), temperature(° C),arterial oxygen saturation(percent),daily weighting & comparing it with the previous days(gram),feeding tolerance(residual volume,vomiting,abdominal distention)

Sponsors and collaborators

Lead sponsor

Mashhad University of Medical Sciences

Other

Registry information

Important dates

Study start: 2012
Primary completion: 2012
Study completion: 2012
First posted: Apr 16, 2013
Registry last updated: Apr 16, 2013

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.