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Biomedical subjects

S Yamaguchi

Publications and source records attributed to S Yamaguchi.

At least 415 records · Page 23Linked to original sources
PubMed1998

Spontaneous regression of malignant lymphoma of the stomach.

We report a case of complete and spontaneous regression of malignant lymphoma of the stomach. A submucosal tumor with central ulceration was detected on the greater curvature of the stomach in a 63-year-old woman. The tumor was diagnosed histopathologically as a diffuse large B-cell lymphoma (REAL classification). The tumor disappeared 18 days later without chemotherapy. Examination at that stage showed Helicobacter pylori (H. pylori), which was later treated with antibiotics. There was no evidence of recurrence of the malignant lymphoma at the last follow-up conducted at the time of preparation of this report, 13 months after the initial diagnosis. Spontaneous regression of an intermediate and high-grade non-Hodgkin's lymphoma is uncommon. We discuss the possible role of H. pylori in the regression of gastric malignant lymphomas.

Biopsy↗
PubMed1998

[Effect of chorei-to and gorei-san on calcium oxalate crystallization in human urine].

The inhibitory effect of two kinds of Kampou medicine, Chorei-to and Gorei-san, on calcium oxalate crystallization in human urine, was examined. Chorei-to or Gorei-san was administered to 15 healthy male volunteers for three consecutive days under normal dietary conditions and 24-hour urine samples were collected before and after the administration. Urinary parameters including calcium, phosphorus, uric acid, oxalate and citrate were measured on each sample obtained. The inhibitory effect on calcium oxalate crystallization was examined using part of the collected 24-hour urine. There was no significant difference in urinary parameters before and after Chorei-to administration. Gorei-san administration significantly increased magnesium excretion in urine. A significant inhibitory effect on calcium oxalate crystallization in human urine was recognized when Gorei-san was administered, whereas Chorei-to had no inhibitory effect on calcium oxalate crystallization in urine.

Adult↗
PubMed1998

[Urgent cesarean section under combined spinal and epidural anesthesia in a patient with aortitis syndrome].

We report the anesthetic management of a patient with aortitis syndrome using combined spinal and epidural anesthesia. A 28-year-old gravida with aortitis syndrome accompanied by faints was scheduled for an urgent cesarean section. Combined spinal and epidural anesthesia was thought to be better for this case in order to monitor the cerebral circulation by her consciousness level and to reduce the hemodynamic change during surgery as compared to spinal or epidural anesthesia alone. After inserting an epidural catheter at the Th 12/L 1 interspace, spinal anesthesia was performed with 1.5 ml of 0.3% dibucaine at the L 4/L 5 interspace. The level of analgesia was under L 1 with the pinprick method 10 min after the spinal anesthesia. Next, 5 ml of 1.5% mepivacaine was injected through the epidural catheter. The level of analgesia reached to Th 6 without major hemodynamic changes. A healthy 2740 g infant was delivered and she had an uneventful recovery. We conclude that combined spinal and epidural anesthesia is useful in a patient with aortitis syndrome undergoing an urgent cesarean section in order to monitor the cerebral circulation by the consciousness level and to reduce the hemodynamic change.

Adult↗
PubMed1998

[A patient with drug abuse who developed multiple psychotic symptoms during sedation with propofol].

We report a patient with drug abuse who developed multiple psychotic symptoms including euphoria, excitement, hallucination and delirium during sedation with propofol under spinal anesthesia. A 37-year-old man who had abused methamphetamines, thinner, phychomimetics and alcohol for 20 years was scheduled for skin transplant as day-case surgery. He was treated with cholorpromazine, haloperidol and flunitrazepam just before the surgery. Sedation with propofol under spinal anesthesia was thought to be suitable in order to prevent psychotic symptoms. After spinal anesthesia, propofol 5 mg.kg-1.h-1 was administered intravenously as sedation. However, euphoria and excitement appeared 10 min after the start of infusion. He also demonstrated excitement, hallucination and delirium under propofol 6-8 mg.kg-1.h-1. His symptoms were suppressed by intravenous injection of haloperidol 5 mg. We speculate that propofol may produce psychotic symptoms when it is used in patients with a history of drug abuse.

Adult↗
PubMed1998

[Beta-mannosidosis].

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Diagnosis, Differential↗
PubMed1998

[Fucosidosis].

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Diagnosis, Differential↗
PubMed1998

[Sialidosis].

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Biomarkers↗
PubMed1998

[Trimethylaminuria].

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Diagnosis, Differential↗