Effect of Mode of Delivery, Parity and Umbilical Blood Gas on First Meconium Passage in Full-Term Healthy Neonates

Tateishi, H.; Yamauchi, Yoshitada; Yamanouchi, Itsuro; Khashaba, Mohamed

doi:10.1159/000244102

Cited by 14 publications

(14 citation statements)

References 9 publications

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“…Our study did not support this relationship. Tateishi et al reported that vaginally born infants pass their meconium earlier than cesarean section born infants [18]. In our study, there was no relationship between the method of birth and the timing of stool, as reported previously [13].…”

Section: Timing Of the First Meconium Stoolsupporting

confidence: 78%

Factors associated with defecation patterns in 0–24-month-old children

et al. 2008

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To identify the normal defecation patterns and the factors affecting these patterns in the first two years of life, a questionnaire was given to the parents of 1,021 children who were followed in a well-child clinic. The time of first meconium passage, presence of colic symptoms, frequency, color, and consistency of stools were recorded.Mann Whitney U, Wilcoxon, chi-square, and correlation tests were used in the statistical analyses. The median number of defecations per day was six in the first month of life. This decreased to once in the second month and almost all cases remained so until the end of the 24th month. At the second month of age, 39.3% of infants passed stools less than once a day. This pattern of rare defecation was seen until the end of 6 months, when supplemental foods were started. Stool frequency was higher in exclusively breast-fed infants (p = 0.0001). Infants who had colic symptoms in the first 2 months had less frequent defecation during the first 2 years of life (p = 0.0001). In addition to confirming the previously observed defecation patterns of 0-2-year-old infants, this study provides the relationship between colic symptoms and stool frequency, and showed that the second month of life was unique in the sense that the frequency of stooling decreased to half of the previous month and 39.3% of these infants defecated less than once a day.

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Section: Timing Of the First Meconium Stoolsupporting

confidence: 78%

Factors associated with defecation patterns in 0–24-month-old children

et al. 2008

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“…Evaluating 32 infants born vaginally and 30 infants born after elective c/s, vaginally born infants were more acidotic and passed their first stools earlier. Acidosis is another presumed mechanism, and a role for gastrointestinal hormones is suggested to be the possible mediator of increased gastrointestinal motility in these infants [26]. However, mean meconium passage time was similar in infants born vaginally or with c/s in our study.…”

Section: Discussioncontrasting

confidence: 59%

Factors Affecting Bilirubin Levels during First 48 Hours of Life in Healthy Infants

Bilgin

Köroğlu

Yalaz

et al. 2013

BioMed Research International

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Objective. To investigate the relationship of delivery type, maternal anesthesia, feeding modalities, and first feeding and meconium passage times with early bilirubin levels of healthy infants. Methods. Cord, 24 hours' and 48 hours' total bilirubin levels were measured in 388 study infants. Results. Infants born with cesarean section were fed later and more often had mixed feeding. First meconium passage was delayed with general anesthesia. Cord, 24 and 48 hours' bilirubin levels were not correlated with first feeding time, meconium passage time, mode of delivery, existence and type of anesthesia, and feeding modalities. Being in high intermediate risk zone at 72 hours of Bhutani's nomogram was only related to first feeding time and high cord bilirubin level. Late preterm infants were more frequently born with cesarean section and offered supplementary formula. Therefore, first meconium passage times and bilirubin levels were similar in the late preterm and term infants. Conclusions. Type of delivery or anesthesia, late prematurity, feeding modalities, and first meconium passage time were not related to early bilirubin levels in healthy neonates, but delayed first feeding and high cord bilirubin levels were related to be in higher risk zone for later hyperbilirubinemia.

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“…Passage of an infant's first meconium stool is often used as a screen for a normal GI tract. [1][2][3][4] Two studies in the American population state that 94% 5 and 98.5% 6 of term infants had their first meconium stool by 24 hours. These studies were performed some time ago when practices in the normal newborn nursery were likely quite different from current practices.…”

Section: Introductionmentioning

confidence: 99%

“…These studies did not examine the type and schedule of feedings. In recent studies in Asia, [2][3][4] the contribution of different physiologic factors (sex, gestational age, birth weight, type of delivery, Apgar scores) to time to first meconium stool was evaluated. There have been no studies that have evaluated the contribution of first 24 hours' feeding type to time to first meconium stool, directly comparing breastfeeding vs formula feeding.…”

Section: Introductionmentioning

confidence: 99%