日本新生児成育医学会雑誌 32(1):166-171;2020  |
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日本新生児成育医学会雑誌 第32巻 第1号 166 ~ 171頁(2020年) |
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受付日:2019.02.15 |
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受理日:2019.09.26 |
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両側基底核に脳梗塞を合併した新生児B 群溶血性連鎖球菌髄膜炎の1 例 |
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Neonatal Group B Streptococcal Meningitis with Cerebral Infarction in the Bilateral Basal Ganglia:A Case Report |
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*1 名古屋第二赤十字病院 小児科,
*2 宮崎大学医学部 発達泌尿生殖医学講座小児科学分野,
*3 高山赤十字病院 小児科 |
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*1 Department of Pediatrics, Japanese Red Cross Nagoya Daini Hospital,
*2 Division of Pediatrics, Faculty of Medicine, University of Miyazaki,
*3 Department of Pediatrics, Japanese Red Cross Takayama Hospital |
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上田健太郎*1・興梠まり*1・黒木亜津子*2・深谷聡子*1・長柄俊佑*3・圓若かおり*1・山田崇春*1・廣岡孝子*1・横山岳彦*1・田中太平*1 |
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Kentaro UEDA*1,Mari KOROKI*1,Atuko KUROKI*2,Satoko FUKAYA*1,
Syunsuke NAGARA*3,Kaori MARUWAKA*1,Takaharu YAMADA*1,
Takako HIROOKA*1,Takehiko YOKOYAMA*1,Taihei TANAKA*1 |
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Key Words:group B streptococcus,meningitis,cerebral infarction |
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両側基底核に脳梗塞を合併した新生児B 群溶血性連鎖球菌(Group B streptococcus:GBS)髄膜炎の症例を経験
した。症例は在胎39 週4 日,出生体重3,806g で出生した男児である。日齢4 に発熱と痙攣を認め,当院に搬送とな
った。入院時検査,日齢9 の頭部MRI よりGBS 髄膜炎に合併した硬膜下膿瘍,両側基底核の脳梗塞と診断し,抗
菌薬を投与し日齢65 に退院した。現在,生後2 歳で発達は月齢相当であり,明らかな神経学的後遺症は認めていな
い。
本症例は,内包後脚の支配血管である前脈絡叢動脈が障害されていないため神経学的後遺症を認めていないと推
測した。また,頭部MRI では両側基底核にT2 強調像で高信号を認め,内部は低信号を呈していたことから出血を
伴った脳梗塞と診断した。基底核梗塞に微小出血を伴った場合,このような信号パターンを呈することもあり留意
すべきと考えた。
両側基底核の脳梗塞を合併した新生児髄膜炎の報告は少なく,臨床経過,各種検査の経過を含めて報告する。 |
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We present a case of neonatal group B streptococcal( GBS) meningitis with cerebral infarction in the bilateral basal ganglia.
The patient was a male infant born at 39 weeks 4 days of gestation, with a birth weight of 3,806g. He developed fever
and seizure on the fourth day of life and was transferred to our hospital. On the basis of the results of the examination
at the time of admission and brain magnetic resonance imaging( MRI) on the ninth day of life, we made a diagnosis
of subdural abscess and cerebral infarction in the bilateral basal ganglia concomitant with GBS meningitis. An antibiotic
was administered for 8 weeks, and the patient was discharged on the 65th day of life. At 12 months old, his development
was appropriate for his age, and no obvious neurological sequelae were observed.
We considered that the patient had no neurological sequela because the anterior choroidal artery that supplies the posterior
limb of the internal capsule was not damaged. The brain MRI revealed high signal intensity in the bilateral basal
ganglia and low signal intensity inside the enhanced region on T2-weighted imaging. Thus, we made a diagnosis of hemorrhagic
cerebral infarction. Awareness of the possibility of such signal intensity pattern in cases of cerebral infarction
with microbleeds is important.
As only a few cases have been reported on neonatal meningitis with cerebral infarction in the bilateral basal ganglia, we
considered the present case to be valuable. |
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(c)日本新生児成育医学会 All Rights Reserved. |
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