Multiple Pregnancy in Humans definition of Multiple Pregnancy in Humans in the Free Online Encyclopedia.

Multiple Pregnancy in Humans

a pregnancy in which several fetuses develop simultaneously. The occurrence of multiple births is relatively rare: twins occur once in 80 births, triplets once in 6,400 births, quadruplets once in 512,000 births, and quintuplets once in 40,960,000 births. Sextuplet and septuplet births have been recorded. It is conjectured that the causes of multiple pregnancy may be the simultaneous fertilization of two eggs (double-ovum twins); the division of one fertilized egg into two or more parts, each of which subsequently develops independently; and the occurrence of two nuclei in one fertilized egg, from which develop after division two independent embryos.

Multiple pregnancies occur most often in women whose family or whose husband’s family has a history of multiple births. There is record of a woman who, in the course of 11 pregnancies, gave birth to three sets of twins, six sets of triplets, and two set of quadruplets (32 children in all). Her husband was a twin and she was a quadruplet.

Women who have a multiple pregnancy are placed under special observation by their clinics. In the event of any complications, they are hospitalized for examination and treatment. In complication-free multiple pregnancies, the women are hospitalized two weeks before the expected birth. Premature birth, premature bursting of the amnion of the first fetus, primary and secondary uterine inertia, and improper positioning of the fetuses often occur in multiple pregnancies. After childbirth, medicinal preparations that contract the uterus are used to prevent hemorrhaging.

REFERENCES

Klenitskii, Ia. S. “Mnogoplodnaia beremennost’.” In Mnogotomnoe rukovodstvopo akusherstvu iginekologii, vol. 3, book 1. Moscow, 1964.
Zhordania, I. F. Uchebnik akusherstva, 4th ed. Moscow, 1964.
Malinovskii, M. S. Operativnoe akusherstvo. [2nd ed. Moscow, 1967.]

Mentioned in	?		Encyclopedia browser	?		Full browser	?
No references found			Multiple Integral multiple isomorphous replacement technique multiple jacks multiple lamp holder multiple linear correlation multiple linear regression Multiple Machining Multiple Master multiple midstop multiple modulation multiple module access Multiple Myeloma multiple neuritis multiple neurofibroma multiple neurofibromatosis multiple of direct personnel expense multiple openings multiple personality multiple perspective software development multiple piece rate plan multiple platforms multiple point multiple precision arithmetic multiple pregnancy Multiple Pregnancy in Agricultural Animals Multiple Pregnancy in Humans multiple prime contract Multiple Processes multiple programming Multiple Proportions, Law of multiple reflection multiple reflection echoes multiple resonance Multiple Root multiple sampling multiple scattering Multiple Sclerosis multiple series multiple serositis multiple shooting multiple single-level multiple sleep latency test multiple spot welding Multiple Star multiple stratification multiple switchboard multiple target generator multiple tropopause multiple twin quad Multiple Units multiple value			Multiple Phase Shift Keying multiple piece rate plan Multiple Pituitary Hormone Defect multiple plane imaging Multiple Plane Wave multiple plasmacytoma of bone Multiple platforms multiple point Multiple Point Ground Multiple Point Source Model with Terrain Multiple Points of Presence Multiple Points of View Multiple Polynomial Quadratic Sieve Multiple Port Unit Multiple Portable Network Graphics Multiple Posterior Pigment Epitheliopathy Multiple Power Input multiple precision arithmetic multiple precision arithmetic Multiple Preferred Guest Multiple pregnancies Multiple pregnancies Multiple pregnancies Multiple pregnancies Multiple pregnancies multiple pregnancy multiple pregnancy multiple pregnancy multiple pregnancy Multiple Pregnancy in Agricultural Animals Multiple Pregnancy in Humans Multiple primary cancers-Werthamer criteria multiple primary colorectal and gastric cancer Multiple Primary Cutaneous Malignant Melanoma Multiple Primary Gastric and Colorectal Cancer multiple primary malignancy syndrome Multiple Primary Malignant Neoplasm Multiple Primary Malignant Tumor of Digestive Tract Multiple Primary Malignant Tumors Multiple primary root multiple prime contract Multiple Probes Spectrophotometer System Multiple Procedure Payment Reduction Multiple Processes Multiple processing units Multiple processing units Multiple processing units Multiple Processor Multiple Data Multiple Product Advertisement Multiple Product Announcement Multiple Product Dispenser Multiple Profile Program multiple programming Multiple Project Assurance Multiple Property Documentation Form multiple proportions, law of Multiple Protection Life Insurance Policies