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송승규(SK Song),정희자(HJ Chung),손순희(SH Sohn),현춘(C Hyun) 대한산부인과학회 1970 Obstetrics & Gynecology Science Vol.13 No.1
This is a case of tripple pregnancy which we had experienced at st. Paul`s hospital last May, and the third baby was associationed with hyaline membrance disease.
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이숙인(SI Lee),최진주(JJ Choi),최응환(EW Choe),현춘(C Hyun) 대한산부인과학회 1970 Obstetrics & Gynecology Science Vol.13 No.7
The authors observed the placental dimensions in 162 cases of term deliveries during the period from April 1969 to June 1969 at the department of Obst. & Gynec. St. Mary`s Hospital. Based on the intrauterine weight chart of Lubchenco, it was found that 146 infants(90%) were normal term infants(N.T.I.) and 16(10%) were intrauterine growth-retarded infants(I.U.G.R.I.) The purpose of this investigation was to compare N.T.I. with I.U.G.R.I. in various placental measeurements(placental weight, volume, decidual area, thinkness and density, umbilical cord length and diametar, umbilical vein diametal), placental coefficients, feto-placental weight rations, and the relations of some of these data ti infant weight. And in addition was made histopathological examination of the placenta in 69 cases out of the 162. The results and conclusion were as follow: 1. Fetal body weight and length: 1) The mean birth weight of N.T.I. was 3,326gm and it was significantly larger than 2,475gm in I.U.G.R.I.(P<0.001). 2) The mean body length of N.T.I was 50.1㎝ and was significantly larger than 47.1㎝ in I.U.G.R.I.(P<0.001) 2. Placenta and cord: 1) Placental weight, volume, decidual area, thinkness, and density: (1) The mean weight of placenta in N.T.I. was 464gm and it was heaveier than 386gm in I.U.G.R.I.(P<0.001). (2) The mean placental volume of the I.U.G.R.I., 386㎤, was significantly smaller than 462㎤ in N.T.I.(P<0.001). (3) The mean decidule area of the placenta of I.U.G.R.I., 268㎠, was significantly smaller than 305㎠ in N.T.I.(P<0.025). (4) The mean placental thickness in N.T.I., was 1.49㎝. The difference in the mean placental thinkness between N.T.I. and I.U.G.R.I., was not statistically significant. (5) in both the groups of the infants, the placental volume in cubic centimeter was numerically similar to the weight in gram. Density was therefore unity. 2) Cord length and diameter, umbilical vein diameter: (1) The mean length of umbilical cord of N.T.I., 54㎝, was significantly larger than 50㎝ in I.U.G.R.I.(P<0.025). (2) The mean cord diameter of the umbilical vein in N.T.I., and I.U.G.R.I. were each 12.3㎝, and 11.7㎝. There was no significant difference between the two groups. (3) The diameter of the umbilical vein in N.T.I., and in I.U.G.R.I., were 7.74mm and 7.21 mm respectively. The former was significantly larger than the letter.(P<0.05). 3. Fetal weight placental weight: 1) The mean value of the placental coefficient in N.T.I. was 0.140, which was significantly smaller than in the I.U.G.R.I., 0.156(P<0.001). 2) The mean ratio of the birth weight to the placental weight in N.T.I. was 7.09, being significantly higher than in the I.U.G.R.I., 6.43.(P<0.001). 4. Correlation between the fetus and the placenta: 1) In N.T.I. the birth weight was directly related to placental weight, volume, decidual area, cord diameter and umbilical vein diameter, And no relation between birth weight and placental thinkness could be found. 2) In I.U.G.R.I., the birth weight was directly related to placental volume, decidual area, and weight. It was not related to cord diameter, umbilical vein diameter. 3) Several cases of I.U.G.R.I. associated with severe toxemia of pregnancy had extremely small birth weight in spite of the placenta of absolutely normal dimensions. The histopathological examination of these placentas revealed numerous pathological changes(Fig1~6). It suggests that the placental dysfunction due to toxemia of pregnancy may be one of influencing factors of fetal growth.
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