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Yoko Yamauchi

Publications and source records attributed to Yoko Yamauchi.

6 recordsLinked to original sources
PubMed2004

Subcutaneous emphysema after tonsillectomy: a case report.

We experienced a case of a subcutaneous emphysema after tonsillectomy. The patient, a 24-year-old man, complained of a recurrent sore throat and was diagnosed as having chronic tonsillitis. Pre-operative general examinations revealed no abnormalities. The operation was carried out under general anesthesia. The adhesions between the tonsils and the surrounding tissues were moderate. The bi-lateral tonsils were easily removed. The recovery period was uneventful. On the next morning, marked swelling of the left cheek and submandibular area was noted. On palpation, there was a characteristic crepitation and softness in these areas. The X-ray examination revealed subcutaneous emphysema. There was no finding of airway obstruction. We diagnosed him as having a subcutaneous emphysema and administered antibiotics for 5 days. From clinical findings, the subcutaneous emphysema was thought to be caused by surgical rather than anesthetic factors. The subcutaneous emphysema gradually disappeared. One year after the tonsillectomy, the patient is under observation as an outpatient and is free from any abnormal symptoms. To avoid this kind of complication, we should pay attention to carefully separate the tonsil from its fossa and to make appropriate selection of surgical equipments.

Adult↗
PubMed2003

Pyrazolato-bridged polynuclear palladium and platinum complexes. Synthesis, structure, and reactivity.

Cyclic trinuclear complexes [Pd(3)(mu-pz)(6)] (1) and [Pd(3)(mu-4-Mepz)(6)] (2) and dinuclear complex [Pd(2)(mu-3-t-Bupz)(2)(3-t-Bupz)(2)(3-t-BupzH)(2)] (3) have been prepared by the reactions of [PdCl(2)(CH(3)CN)(2)] with pyrazole (pzH), 4-methylpyrazole (4-MepzH), and 3-tert-butylpyrazole (3-t-BupzH), respectively, in CH(3)CN in the presence of Et(3)N. In the absence of the base, treatment of [PdCl(2)(CH(3)CN)(2)] with pzH gave the mononuclear complex, [Pd(pzH)(4)]Cl(2) (6). The reaction of [PtCl(2)(C(2)H(5)CN)(2)] with pzH in the presence of Et(3)N under refluxing in C(2)H(5)CN afforded the known dimeric Pt(II) complex, [Pt(pz)(2)(pzH)(2)](2) (7). The protons participating in the hydrogen bonding in 3 and 7 are easily replaced by silver ions to give the heterotetranuclear complex [Pd(2)Ag(2)(mu-3-t-Bupz)(6)] (4) and the heterohexanuclear complex [Pt(2)Ag(4)(mu-pz)(8)] (5). The complexes 1-6 are structurally characterized.

Journal Article↗
PubMed2003

Foreign body in the maxillary sinus--possible plastic tube: a case report.

We experienced the case of a patient who had a foreign body in the maxillary sinus. The patient complained of recurrent unilateral badly smelling rhinorrhea. The computed tomography and the magnetic resonance images revealed a foreign body in the maxillary sinus. The foreign body was removed via the Caldwell-Luc approach. The foreign body was a plastic tube, which was supposed to be designed for the drainage of the maxillary sinus. However, the patient did not remember having been subjected to a treatment using such kind of tube. After the surgical removal, the patient became free from the nasal symptoms.

Adult↗
PubMed2003

Traumatic perilymph fistula in infants: a case report.

Traumatic perilymph fistula is reported to be rare in infants because of the small size of the infant external meatus. We treated an infant with a traumatic perilymph fistula in the right ear. A metallic wire had penetrated the tympanic membrane. Horizontal-rotatory nystagmus was also observed. Computed tomographic images revealed dislocation of the ossicles. The perilymph fistula was closed under general anesthesia. The incus-stapes joint was separated and the footplate of the stapes was dislocated. Leakage of the perilymph fluid was apparent from the oval window and this fistula was closed with connective tissue. The perforation of the tympanic membrane was closed with temporal fascia. After surgery, the spontaneous nystagmus disappeared. The patient is under observation as an outpatient and is growing normally.

Child, Preschool↗
PubMed2002

[Stem cell factor production from cultured nasal epithelial cells--effect on SCF production by drugs].

We studied whether epithelial cells cultured in serum-free medium contained other cells or not, there were differences in SCF production from cultured nasal epithelial cells between groups of nonallergic and allergic patients, and among degrees of serum mite-CAP RAST classes of allergic patients, and how drugs inhibited SCF production. As a result, no other contaminating cells except mast cell existed in cultured cells. There was a significant difference in SCF production of cultured cells between nonallergic and class 1-2, 3-4, 5-6, and between class 1-2 and 3-4, 5-6 of mite CAP-RAST class. Cyclosporin, prednisolone, fluticasone, ketotifen, and clemastine inhibited SCF production from cultured epithelial cells, but cromoglicate and suplatast did not. Inhibition means the reduction of SCF from cells, not the growth of cultured nasal epithelial cells.

Adult↗