Tatsuo Shiigai

Learn More
BACKGROUND AND PURPOSE Pure sensory stroke (PSS) usually is caused by a lacunar infarct; reports of PSS caused by cerebral hemorrhage have been rare. We correlated clinical and neuroradiologic findings in patients with PSS caused by cerebral hemorrhage. METHODS We retrospectively studied seven patients with appropriate clinical findings and lesions(More)
Results of serial positron emission tomography (PET) in a biopsy-proven case of gliomatosis cerebri (GC) are reported. Computed tomography (CT) with and without contrast failed to detect focal abnormalities, but magnetic resonance (MR) revealed iso-intensity or low-intensity lesions in T1-weighted images and high-intensity lesions in T2-weighted images.(More)
We investigated the risk factors for silent lacunar infarction and etat criblé detected by magnetic resonance imaging (MRI). Previous reports have evaluated white matter hyperintensities (WMHs) and periventricular hyperintensities (PVHs) on T2-weighted images, but have not distinguished between lacunar infarcts, état criblé, and leukoaraiosis of(More)
We report two cases of reversible brainstem hypertensive encephalopathy (RBHE) with unusual magnetic resonance (MR) findings. Patient 1, an 85-year-old man without a history of hypertension, developed acute severe hypertension and mild consciousness disturbance as the only symptoms. Patient 2, a 46-year-old man with an untreated hypertension, presented with(More)
Mammalian renal proximal tubules reabsorb large amounts of chloride. Mechanisms of the transcellular chloride transport are poorly understood. To determine whether KCl co-transport exists in the basolateral membrane of mammalian renal proximal tubule, isolated rabbit proximal straight tubules (S2 segment) were perfused in vitro, and intracellular activities(More)
BACKGROUND AND PURPOSE This study was conducted to evaluate the role of high serum lipoprotein(a) levels in a group of patients with a relatively early onset of cerebral infarction as a whole and in a subgroup with the perforating artery occlusion subtype of cerebral infarction. METHODS Fifty-four patients with cerebral infarction, the onset of which was(More)
Fifty-nine cases of glycyrrhizin (licorice)-induced hypokalemic myopathy (GIHM), 2 females treated in our departments (85 and 73 years old) and 57 cases reported in the literature were studied, and conditions leading to the onset, factors, clinical manifestations, laboratory assessments, muscle biopsy findings, treatment and outcome were discussed. The 59(More)
BACKGROUND Metabolic acidosis leads to chronic kidney disease (CKD) progression. The guidelines recommend a lower limit of serum bicarbonate level, but no upper limit. For serum bicarbonate level to be clinically useful as a therapeutic target marker, it is necessary to investigate the target serum bicarbonate level within the normal range to prevent CKD(More)
BACKGROUND AND PURPOSE We conducted this retrospective study to evaluate the clinical, neuroradiological, and neurophysiological findings in patients with pure sensory stroke due to pontine lacuna. SUMMARY OF REPORT Four patients with pontine lacuna, three men and one woman (mean age, 64.5 years; range, 55 to 75 years), were evaluated. Magnetic resonance(More)
OBJECTIVES We investigated the occurrence in hypertensive patients of new subclinical changes in the brain by serial magnetic resonance imaging (MRI). METHODS MRI was performed serially in 98 hypertensive subjects without neurologic deficits at least once a year for 3 years. All received antihypertensive medicines Blood pressure, serum lipids, diabetes(More)