With the recent development of surgery, transfusion of blood has become indispensable for surgical treatment and, accordingly, hepatitis after operation has come into serious problem.
We made detailed examinations on 2, 784 in-patients of our surgery during the period from January 1, 1961 to December 31, 1964. Especially, for the study of process after discharge, we made inquiries through return post cards to all the alive to whom transfusion of blood had been applied from January 1, 1963 to December 31, 1964.
The results are reported in the followings:
1) Out of 2, 784 in-patients of our surgery, transfusion of blood was applied to 623 persons, or 22.4% of the total cases, and the average quantity of blood applied was 1, 444 ccper head.
2) 40 patients suffered from hepatitis during four years, which occupied 6.4% of the patients to whom blood had been transfused.
3) In case the patients are classified in five stages according to the quantity of blood transfused, hepatitis rose frequently in proportion to the quantity applied.
4) As for age and sex, hepatitis rose in 23 men and 17 women ranging from 20 to 74 years of age, but most frequently in those aged from 30 to 50, which occupied 60% of the total cases.
5) 36 among the patients in hepatitis were with icterus, while 4 without icterus. Icterus rose in 2 weeks after transfusion of blood in swift cases, or in 6 months in slow cases.
6) As to blood Types, hepatitis was observed most frequently in Types B and AB.
7) Subjective symptom of patients diagnosed to be in hepatitis was general exhaustion for the most part, then want of appetite, nausea and vomition, except 34 patients in icterus.
8) We made Trans-amylase test from the middle part of 1962, so that we could not cover all the cases. As far as we could refer, however, many cases showed a value higher than 300 units both in GO-T and GP-T in 1-3 months after transfusion.
9) As to process of recovery, 22 patients, or 55%, recovered within 3 months. There were five cases, or 12.5%, that continued for longer than one year, which were considered to be chronic.
Summary
Thus, we made statistical observations on 023 cases to which transfusion of blood had been applied, but, as is usual with hospital, we could not have observation period long enough after operation, We often found hepatitis in the patients who came to hospital again because of deterioration of general symptom or rise of icterus.
We cannot define whether this hepatitis was epidemic one or serum hepatitis, therefore,
we collected statistics as postoperative hepatitis in a lump.
As could be seen from the results, our statistics show that the rise of hepatitis was at its maximum in 1963 and decreased in 1964.
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