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Perinatal mortality (PNM) refers to the death of a
fetus A fetus or foetus (; plural fetuses, feti, foetuses, or foeti) is the unborn offspring that develops from an animal embryo. Following embryonic development the fetal stage of development takes place. In human prenatal development, fetal deve ...
or
neonate An infant or baby is the very young offspring of human beings. ''Infant'' (from the Latin word ''infans'', meaning 'unable to speak' or 'speechless') is a formal or specialised synonym for the common term ''baby''. The terms may also be used to ...
and is the basis to calculate the perinatal
mortality rate Mortality rate, or death rate, is a measure of the number of deaths (in general, or due to a specific cause) in a particular population, scaled to the size of that population, per unit of time. Mortality rate is typically expressed in units of de ...
. Variations in the precise definition of the perinatal mortality exist, specifically concerning the issue of inclusion or exclusion of early fetal and late neonatal fatalities. The
World Health Organization The World Health Organization (WHO) is a specialized agency of the United Nations responsible for international public health. The WHO Constitution states its main objective as "the attainment by all peoples of the highest possible level of h ...
defines perinatal mortality as the "number of stillbirths and deaths in the first week of life per 1,000 total births, the perinatal period commences at 22 completed weeks (154 days) of gestation, and ends seven completed days after birth", but other definitions have been used. The UK figure is about 8 per 1,000 and varies markedly by social class with the highest rates seen in Asian women. Globally, an estimated 2.6 million neonates died in 2013 before the first month of age down from 4.5 million in 1990.


Causes

Preterm birth Preterm birth, also known as premature birth, is the Childbirth, birth of a baby at fewer than 37 weeks Gestational age (obstetrics), gestational age, as opposed to full-term delivery at approximately 40 weeks. Extreme preterm is less than 28 we ...
is the most common cause of perinatal mortality, causing almost 30 percent of neonatal deaths.March of Dimes --> Neonatal Death
Retrieved on November 10, 2014
Infant respiratory distress syndrome Infantile respiratory distress syndrome (IRDS), also called respiratory distress syndrome of newborn, or increasingly surfactant deficiency disorder (SDD), and previously called hyaline membrane disease (HMD), is a syndrome in premature infants c ...
, in turn, is the leading cause of death in preterm infants, affecting about 1% of newborn infants.
Birth defect A birth defect, also known as a congenital disorder, is an abnormal condition that is present at birth regardless of its cause. Birth defects may result in disabilities that may be physical, intellectual, or developmental. The disabilities can ...
s cause about 21 percent of neonatal death.


Fetal mortality

Fetal mortality refers to
stillbirth Stillbirth is typically defined as fetal death at or after 20 or 28 weeks of pregnancy, depending on the source. It results in a baby born without signs of life. A stillbirth can result in the feeling of guilt or grief in the mother. The term ...
s or fetal death. It encompasses any death of a fetus after 20 weeks of gestation or 500 gm. In some definitions of the PNM early fetal mortality (week 20–27 gestation) is not included, and the PNM may only include late fetal death and neonatal death. Fetal death can also be divided into death prior to
labor Labour or labor may refer to: * Childbirth, the delivery of a baby * Labour (human activity), or work ** Manual labour, physical work ** Wage labour, a socioeconomic relationship between a worker and an employer ** Organized labour and the labour ...
, antenatal (antepartum) death, and death during labor, intranatal (intrapartum) death.


Neonatal mortality

Neonatal mortality refers to death of a live-born baby within the first 28 days of life. Early neonatal mortality refers to the death of a live-born
baby An infant or baby is the very young offspring of human beings. ''Infant'' (from the Latin word ''infans'', meaning 'unable to speak' or 'speechless') is a formal or specialised synonym for the common term ''baby''. The terms may also be used to ...
within the first seven days of life, while late neonatal mortality refers to death after 7 days until before 28 days. Some definitions of the PNM include only the early neonatal mortality. Neonatal mortality is affected by the quality of in-hospital care for the
neonate An infant or baby is the very young offspring of human beings. ''Infant'' (from the Latin word ''infans'', meaning 'unable to speak' or 'speechless') is a formal or specialised synonym for the common term ''baby''. The terms may also be used to ...
. Neonatal mortality and postneonatal mortality (covering the remaining 11 months of the first year of life) are reflected in the
infant mortality rate Infant mortality is the death of young children under the age of 1. This death toll is measured by the infant mortality rate (IMR), which is the probability of deaths of children under one year of age per 1000 live births. The under-five morta ...
.


Perinatal mortality rate

The PNMR refers to the number of perinatal deaths per 1,000 total births. It is usually reported on an annual basis. It is a major marker to assess the quality of health care delivery. Comparisons between different rates may be hampered by varying definitions, registration bias, and differences in the underlying risks of the populations. PNMRs vary widely and may be below 10 for certain developed countries and more than 10 times higher in developing countries. The WHO has not published contemporary data.


Effects of neonatal nutrition on neonatal mortality

Probiotic supplementation of preterm and low birthweight babies during their first month of life can reduce the risk of blood infections, bowel sickness and death in low- and middle-income settings. However, supplementing with Vitamin A does not reduce the risk of death and increases the risk of ''bulging fontanelle,'' which may cause brain damage.


See also

*
Maternal death Maternal death or maternal mortality is defined in slightly different ways by several different health organizations. The World Health Organization (WHO) defines maternal death as the death of a pregnant mother due to complications related to pre ...
*
Miscarriage Miscarriage, also known in medical terms as a spontaneous abortion and pregnancy loss, is the death of an embryo or fetus before it is able to survive independently. Miscarriage before 6 weeks of gestation is defined by ESHRE as biochemical lo ...
*
Neonatal intensive care unit A neonatal intensive care unit (NICU), also known as an intensive care nursery (ICN), is an intensive care unit (ICU) specializing in the care of ill or premature newborn infants. Neonatal refers to the first 28 days of life. Neonatal care, as kn ...
*
Neonaticide Neonaticide is the deliberate act of a parent Child murder, murdering their own child during the first 24 hours of life. As a noun, the word "neonaticide" may also refer to anyone who practices or who has practiced this. Neonaticide is relati ...
*
Pregnancy and Infant Loss Remembrance Day Pregnancy and Infant Loss Remembrance Day is an annual day of remembrance observed on October 15 for pregnancy loss and infant death, which includes miscarriage, stillbirth, SIDS, ectopic pregnancy, termination for medical reasons, and the death o ...
*
Stillbirth Stillbirth is typically defined as fetal death at or after 20 or 28 weeks of pregnancy, depending on the source. It results in a baby born without signs of life. A stillbirth can result in the feeling of guilt or grief in the mother. The term ...


References


External links


WHO 2005 reportEuropean Perinatal Health Report 2010
{{DEFAULTSORT:Perinatal Mortality Medical aspects of death Obstetrics Infant mortality Medical terminology Midwifery Pregnancy with abortive outcome fi:Kohtukuolema