• gestation
  • In developed countries and at facilities where expert neonatal care is available, it is considered from 22 completed weeks (usually about 154 days) of gestation (the time when birth weight is normally 500 g) to 7 completed days after birth. (wikipedia.org)
  • In many of the developing countries the starting point of this period is considered 28 completed weeks of gestation (or weight more than 1000 g). (wikipedia.org)
  • For decades, the topic of question pertaining to crown-rump length (CR), crown-heel length (CH), head circumference (HC) with respect to the body weight of human fetus at different time periods of gestation has baffled many developmental researchers and biostatisticians. (wikipedia.org)
  • Group A had 90 fetuses of 9-12 weeks of gestation and the weight varied between 1-14 grams. (wikipedia.org)
  • Group B had 337 fetuses, age 13-16 weeks of gestation with weight variation between 15-105 grams whereas the third group had 435 fetuses of 17-20 weeks of gestation with a weight range between 106-310 grams. (wikipedia.org)
  • Group D consisted of 531 fetuses of 21-24 weeks and weight between 331-640 grams and Group E had fetuses of the age range 25-28 weeks of gestation and weight 640-1070 grams. (wikipedia.org)
  • At 8-12 weeks of gestation, liver is a relatively bigger organ which forms 4-5-5.5% of the total body weight and protrudes through the abdominal wall. (wikipedia.org)
  • fetus
  • The distribution of fetal weights and corresponding centile curves were estimated by using Cole's LMS method with sandwich variance estimation to accommodate the repeated measurements of each fetus. (scielo.org.za)
  • If the head of the fetus is well-flexed, it should be on the opposite side from the fetal back. (wikipedia.org)
  • Although increasing placental fold width does increase the interaction between fetus and mother, nutrient exchange is not most efficient in smaller fetal pigs, as would be expected. (wikipedia.org)
  • Fetal height, Fetal Weight and head circumference(HC),Crown to Rump length(CR), dermatological observations like skin thickness etc. are measured individually to assess the growth and development of the organs and the fetus as a whole and can be a parameter for normal or abnormal development also including adaptation of the fetus to its newer environment. (wikipedia.org)
  • There will be great variations in the body weight of a 16 weeks old fetus. (wikipedia.org)
  • The weight will not be constant for every fetus and will vary from individual to individual. (wikipedia.org)
  • A Nigerian study showed that the birth weight of the human fetus also depends upon the size and weight of the mother including her height and weight. (wikipedia.org)
  • Normally at birth the brain of the fetus is 3 times the weight of its liver. (wikipedia.org)
  • ratio
  • PURPOSE: To determine the ratio of fetal lung volume (FLV) to fetal body weight (FBW) by using ultrasonography (US) and magnetic resonance (MR) imaging and to evaluate the usefulness of this ratio in predicting pulmonary hypoplasia (PH) in fetuses at high risk. (biomedsearch.com)
  • maneuvers
  • The examiner's skill and practice in performing the maneuvers are the primary factor in whether the fetal lie is correctly ascertained. (wikipedia.org)
  • More drastic maneuvers include Zavanelli's maneuver, which involves pushing the fetal head back in with performing a cesarean section. (wikipedia.org)
  • birth weights
  • Medical, social, legislative and demographic changes since this time may likely mean these previous charts may not represent the distribution of birth weights in the UK. (bmj.com)
  • However, it has been suggested that the definition be restricted to infants with birth weights greater than the 97th percentile (2 standard deviations above the mean) as this more accurately describes infants who are at greatest risk for perinatal morbidity and mortality. (wikipedia.org)
  • Accurate
  • To test whether Schild's sex-specific formula for estimating fetal weight is more accurate than commonly used regression formulae. (karger.com)
  • diabetes
  • There are well-recognized risk factors, such as diabetes, fetal macrosomia, and maternal obesity, but it is often difficult to predict, despite recognised risk factors. (wikipedia.org)
  • centile
  • Birth or fetal weight centile charts used in the USA, Canada and the UK provide centiles commencing from either 22 or 24 weeks. (scielo.org.za)
  • A total of 246 patients were included in the study, presenting a total of 459 fetal weight estimates that contributed to the centile chart ( Fig. 1 ). (scielo.org.za)
  • Centiles were created using the lambda-mu-sigma method via the GAMLSS package in R. This method transforms the skewed birth weight distribution to approximate a normal distribution, allowing any birth weight centile to be produced. (bmj.com)
  • diameter
  • or internal cephalic replacement followed by Cesarean section intentional fetal clavicular fracture, which reduces the diameter of the shoulder girdle that requires to pass through the birth canal. (wikipedia.org)
  • newborns
  • Over the whole weight range and in the subgroup of newborns with a birth weight between 2,500 and 3,999 g, the sex-specific weight formula from Schild demonstrated the best level of accuracy. (karger.com)
  • depends
  • The size of the fetal pig depends on the time allowed for the mother to gestate: No studies have found significant data regarding the mother swine's diet and fetal pig survival rate. (wikipedia.org)
  • abdomen
  • After the upper abdomen has been palpated and the form that is found is identified, the individual performing the maneuver attempts to determine the location of the fetal back. (wikipedia.org)
  • The fetal back, once determined, should connect with the form found in the upper abdomen and also a mass in the maternal inlet, lower abdomen. (wikipedia.org)
  • In the third maneuver the health care provider attempts to determine what fetal part is lying above the inlet, or lower abdomen. (wikipedia.org)
  • This method requires that the transponder be placed on the maternal abdomen over the area of the fetal head. (wikipedia.org)
  • study
  • Objective: This is a prospective descriptive hospital-based study about relationship between placental thickness and estimated fetal weight in third trimester pregnant Sudanese ladies at Omdurman Maternity Hospital (Sudan). (alliedacademies.org)
  • In the largest study to date, there was an indication of association between high birth weight, LGA, and increased RMS risk among non-Hispanic white children and adolescents, but not in other racial or ethnic groups. (nih.gov)
  • influence
  • Additional demographic information for each patient was collected, taking care to record information that may influence fetal weight, e.g. parity, smoking and body mass index (BMI). (scielo.org.za)
  • Data
  • These data may also be useful for further clarifying the fetal-placental pathophysiology in these conditions. (medsci.org)
  • The birth weight charts used in the UK are based on data collected between 20 and 30 years ago. (bmj.com)
  • We have updated national birth weight charts using data from almost 1.3 million births and validated them on a sample of almost 650 000. (bmj.com)
  • among
  • Along with frogs and earthworms, fetal pigs are among the most common animals used in classroom dissection. (wikipedia.org)
  • back
  • The fetal back will feel firm and smooth while fetal extremities (arms, legs, etc.) should feel like small irregularities and protrusions. (wikipedia.org)
  • If the fetal head is extended though, the occiput is instead felt and is located on the same side as the back. (wikipedia.org)