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Biomedical subjects

K Meguro

Publications and source records attributed to K Meguro.

At least 181 records · Page 10Linked to original sources
PubMed1982

Favorable results with syringosubarachnoid shunts for treatment of syringomyelia.

From 1969 to 1979, 20 patients with syringomyelia were treated with a syringosubarachnoid shunt. The principal indications for this procedure were: significant progressive neurological deterioration and absent or minimal tonsillar ectopia. There were 15 patients with idiopathic syringomyelia, four with posttraumatic syringomyelia, and one with syringomyelia secondary to spinal arachnoiditis. The operations were performed with an operating microscope, and attention was directed to preserving thearachnoid membrane to ensure proper placement of the distal end of the shunt in an intact subarachnoid space. In all cases, a silicone rubber ventricular catheter was inserted into the syrinx through a posterior midline myelotomy. The average follow-up period was 5 years. A favorable result was obtained in 15 of the 20 patients (75%), including an excellent result with improvement of neurological deficit in 11 patients and a good result with cessation of progression in four patients. In the remaining five patients the result was poor with further progression of neurological deficit. A short duration of preoperative symptoms was usually a favorable prognostic feature. Four patients with a history of less than 6 months all had excellent results. Thirteen patients had a syringosubarachnoid shunt only, and all had good or excellent results. Seven patients had other surgical procedures, before, accompanying, or after shunt placement, and two had favorable results. Thus, the syringosubarachnoid shunt is an effective therapeutic modality for many patients with syringomyelia, particularly if there is little or no tonsillar herniation.

Adult↗
PubMed1977

[Cranioplasty following decompressive craniectomy--analysis of 300 cases (author's transl)].

Three hundred cases of cranioplasty, following large decompressive craniectomy for various diseases, were analyzed. 1. Neurological status was evaluated before and after cranioplasty in 52 patients with remaining neurological deficit. There observed no changes in 13 patients with skin flap of full or bulging type. However, 4 (10%) among 39 patients with skin flap of sinking or flat type showed unquestionable objective improvement within a few days following cranioplasty, after stationary period of more than 2 and half months. In these situation, placement of acrylic plate has presumably corrected deformity of underlying brain tissue secondary to pressure gradient between extra- and intracranial spaces, which might have unidentifiably caused unfavorable eflects on neural function. 2. Seven children underwent procedure within 24 months of age and all of them had troublesome bluging of skin flap. This deformity was extreme in 5, in whom the dura mater was not repaired in the previous surgery. Those children had various intracranial problems as causes of bulging skin flap-hydrocephaly in 2, porencephaly in 1, CSF collection under the skin flap in 4, brain migration in 2, enlarged subarachnoid space over the bulging brain surface in 2, deformity of the skull resembling growing skull fracture in 5; and as complications of cranioplasty in 3 and infection in 2. 3. Fracture of the cranioplasty was seen in 7 (2%) among 300 cases and 6 of them were under the age of 7. In one case, there occurred 3 episodes of fracture. 4. Infected cranioplasty, in all as epidural empyema, was seen in 10 (3%) of 300 cases. One of the most important factors related to infection, was the time interval after the primary surgery; all infected cases were operated on within 3 months.

Adolescent↗