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H. V. Slemon

otherwise classified. Three of the abscesses occurred around metallic foreign bodies remote from the entrance wound. This phenomenon was not observed in the Middle East series, where no effort was made to remove the foreign body unless easily accessible. However, more recently, since these infections have occurred, more attention has been paid to the removal of the metal. Two of the patients with abscess indicate the need for long-term follow-up in the evaluation of sepsis rate. One had been perfectly well with a healed retracted wound for 5 weeks. After his routine

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John E. Scarff

. H.H. 5-29-45 787522 29 yrs. Aqueduct stenosis Good . Pressure, tremor & headache relieved; vision improved. No long-term follow-up. 10. R.G. 12-5-47 892215 15 yrs. Aqueduct stenosis Good . 1 yr. postop., physician reported pt. in good condition, doing well. Tabulation of Table 2 No. of Cases Hospital Deaths Poor Results Good Results Total series 10 1 (10%) 4 (40%) 5 (50%) Aqueduct stenosis 7 — 2 (28%) 5 (72%) Tumors 2 — 2 (100

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George D. Zuidema and Solomon J. Cohen

present the signs and symptoms characteristic of elevated intracranial pressure, the usual diagnostic studies such as ventriculography or arteriography fail to reveal any abnormality. This group is characterized clinically by: 1) increased intracranial pressure; 2) normal ventricular system; and 3) normal cerebrospinal fluid, except for pressure. The syndrome is known variously as pseudotumor cerebri, intracranial hypertension of unknown etiology, serous meningitis or otitic hydrocephalus. We felt that by long-term follow-up studies of this group some subtle

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J. W. Magladery

efficacy of treatment in this whole composite group. A still more evident gap lies in knowledge of the incidence of later recurrent bleeding amongst survivors from the initial hemorrhage regardless of its cause. Indeed, though somewhat higher rates of recurrence have been reported elsewhere, the only really satisfactory long-term follow-up report appears to be that of Hyland. 15 He stated that, amongst survivors presumed to have arterial aneurysms, some 20 per cent bled again at a later date. This figure is in keeping with that reported by Hamby. 12 These

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Some Effects of Injections of Hyaluronidase into the Subarachnoid Space of Experimental Animals Guy Owens Sam L. Clark July 1956 13 4 223 229 10.3171/jns.1956.13.4.0223 Long-Term Follow-Up of 106 Cases of Astrocytoma, 1928–1939 Arthur R. Elvidge A. Martinez-Coll July 1956 13 4 230 243 10.3171/jns.1956.13.4.0230 Hypothermia and Cerebral Vascular Lesions Lieut. Hubert L. Rosomoff July 1956 13 4 244 255 10.3171/jns.1956.13.4.0244 Scintiscanning as a Method for Localization of Cerebral Tumors Robert L. Bell Asa

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Arthur R. Elvidge and A. Martinez-Coll

clinical and statistical point of view. The present survey is based upon a total of 112 cases of astrocytoma occurring in the period November 1928–December 1939 (11 years) with a long-term follow-up in 90 per cent of the cases until June 1953. Of these 112 cases, 6 have been finally omitted in the subgrouping-2 tumours considered as glioblastoma multiforme, 1 an intramedullary cyst without sections available and 3 tumours considered as malignant astrocytomas unclassified. Of the remaining 106 cases, 53 fell into the piloid subgroup, 29 into the diffusum, and 24 into

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Astrocytoma of the Brain and Spinal Cord

A Review of 176 Cases, 1940–1949

Laurence F. Levy and Arthur R. Elvidge

removal of the tumour and roentgen-ray therapy. Two patients lived an average of 1 year after operation—the patient who had roentgen-ray therapy lived longer than the one who did not. Of 11 patients, therefore, 2 died postoperatively, while the remainder lived 1 month, 6 months, 1½ years, 3 years, 5½ years, 7 years (alive and well) and 12½ years (alive, but paraplegic). Two patients have been lost to follow-up. REFERENCES 1. Elvidge , A. R. , and Martinez-Coll , A. Long-term follow-up of 106 cases of astrocytoma, 1928

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H. Harvey Gass, John F. McGuire and Donald R. Simmons

over-all mortality of middle cerebral aneurysms is much the same as the essayists'. I wish to say the majority of our patients have been operated upon within the first week. We have not a large enough series of internal carotid aneurysms to give you a long-term follow up. Again, it is difficult to compare figures in series of aneurysms. It depends when one operates upon them. Unfortunately, as some of you here will know after great discussion, nobody has been able to find a control series of aneurysms verified angiographically on which one may base an accurate

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Intracranial Internal Carotid Artery Aneurysms

Results of Treatment by Cervical Carotid Artery Ligation

H. A. Shenkin, P. Polakoff and B. E. Finneson

T he controversy as to whether cervical carotid ligation alone or an intracranial procedure is preferable in treatment of intracranial aneurysms of the carotid artery would seem from the majority of recently expressed opinions 2, 4–6, 8, 9, 11 to have been resolved in favor of the latter. This opinion, however, does not appear to be based on actual data showing that cervical carotid ligation is ineffective in preventing recurrent hemorrhage. Indeed, the only long-term follow-up studies on surgically treated intracranial aneurysms 3, 7 are in series in which

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Carotid Ligation for Intracranial Aneurysm

A Follow-Up Study of 54 Patients

W. G. Hardy, L. M. Thomas, J. E. Webster and E. S. Gurdjian

and posterior communicating arteries may be effectively treated by ligation of the carotid artery. 4 In a review of the literature by Rowe et al. 5 comparing results of direct attack with results of carotid ligation, it is concluded that ligation in the neck carries a much lower immediate mortality than intracranial attack but may permit a higher late mortality from recurrent hemorrhage. Long-term follow-up of a large series of patients in whom definite operations have been performed on arterial aneurysms, has not been reported and it is difficult to judge the