Journal of Neurosurgery January 1997, Volume 86, Number 1 CLINICAL ARTICLES: Continuous intraoperative electromyographic monitoring of cranial nerves during resection of fourth ventricular tumors in children. PAUL A. GRABB, A. LELAND ALBRIGHT, ROBERT J. SCLABASSI, AND IAN F. POLLACK Third ventricle colloid cysts: a consecutive 12-year series. TiiT MATHIESEN, PER GRANE, LARS LINDGREN, AND CHRISTER LINDQUIST Medulloblast : is the 5-year survival rate improving? A review of 80 cases from a single institution. KAROLY M. Davipb, ADRIAN T. H. CASEY, RICHARD D. HAYWARD, WILLIAM F. J. HARKNESS, KIM PHIPPS, AND ANGIE M. WADE. Utility of relative cerebral blood volume mapping derived from perfusion magnetic resonance imaging in the routine follow up of brain tumors. TALI SIEGAL, RINA RUBINSTEIN, TZAHALA TZUK-SHINA, AND JOHN M. Gomori. Lack of specificity in electrophysiological identification of lower sacral roots during selective dorsal rhizotomy. JEFFREY G. OJEMANN, T. S. PARK, ROBERT KOMANETSKY, RICHARD A. A. DAY, AND BRUCE A. KAUFMAN Selective dorsal rhizotomy and rates of orthopedic surgery in children with spastic cerebral palsy. MICHAEL R. Cuicoine, T. S. PARK, AND BRUCE A. KAUFMAN . Pathogenesis of Chiari malformation: a morphometric study of the posterior cranial fossa. MisAO NISHIKAWA, HIROAKI SAKAMOTO, AKIRA HAKUBA, NARUHIKO NAKANISHI, AND YUICHI INOUE Selection criteria and outcome of operative approaches for thoracolumbar burst fractures with and without neurological deficit. CHARLES L. SCHNEE AND LEE V. ANSELI Outcome analysis for adults with spondylolisthesis treated with posterolateral fusion and transpedicular screw fixation. CHARLES L. SCHNEE, ANDREW FREESE, AND LEE V. ANSELL ........c.e e.ce.cec.uc.ece-cc-ecs0ee s Modified open-door cervical expansive laminoplasty for spondylotic myelopathy: operative technique, outcome, and predictors for gait improvement. THOMAS T. LEE, GLEN R. MANZANO, AND BARTH A. GREEN Diagnosis of root avulsions in traumatic brachial plexus injuries: value of computerized tomography myelography and magnetic resonance imaging. GUSTAVO ADOLPHO CARVALHO, GUIDO NIKKHAH, CORDULA MATTHIES, GOTZ PENKERT, AND MADJID SAMII LABORATORY INVESTIGATIONS: Toward an agreement on terminology of nuclear and subnuclear divisions of the motor thalamus. GioRGiO MACCHI AND EDWARD G. JONES . Utilization of type I collagen gel, demineralized bone matrix, and bone morphogenetic protein-2 to enhance autologous bone lumbar spinal fusion. GREGorY A. HELM, JONAS M. SHEEHAN, JASON P. SHEEHAN, JOHN A. JANE, Jr., CHARLES G. DIPIERRO, NATHAN E. SIMMONS, GEORGE T. GILLIES, DAVID F. KALLMES, AND THOMAS M. SWEENEY . Specific repression of the preproendothelin-1 gene in intracranial arteriovenous malformations. R. L. PATRICK RHOTEN, YOUSSEF G. COMAIR, DANIEL SHEDID, DOUGLAS CHYATTE, AND MICHAEL S. SIMONSON Histological interaction of cultured endothelial cells and endovascular embolic materials coated with extracellular matrix. SHINICHI TAMATANI, TSUNENORI OZAWA, TAKASHI MINAKAWA, SHIGEKAZU TAKEUCHI, TETSUO KOIKE, AND RYUICHI TANAKA .... Progesterone and estrogen receptors |i n meningiomas: prognostic considerations. DorA W. Hsu, Jimmy T. EFirp, AND E. TessA HEDLEY-WHYTE Analysis of proliferation markers and p53 expression in gliomas of astrocytic origin: relationships and prognostic value. JULIE M. CUNNINGHAM, Davip W. KIMMEL, BERND W. SCHEITHAUER, JUDITH R. O’ FALLON, PAUL J. NOVOTNY, A TE Se BN ooo x.0 i died ae Sikh ne0 cn k-+5'e ebb ed Lbhe enb ade ens bo Ol bet eee Effect of hemodilution with diaspirin cross-linked hemoglobin on intracranial pressure, cerebral perfusion pressure, and fluid requirements after head injury and shock. JAMES E. CHAPPELL, STEVEN R. SHACKFORD, AND WHITNEY J. MCBRIDE Activation of complement by tissue plasminogen activator, but not acute cerebral ischemia, in a rabbit model of thromboembolic stroke. MARTIN M. BEDNAR, CORDELL E. Gross, SHEILA R. RUSSELL, DAVID SHORT, AND PATRICIA Duraplasty with biosynthetic cellulose: an experimental study. Luis RENATO MELLO, LEONIR T. FELTRIN, PAULO T. FONTES NETO, AND FERNANDO A. P. FERRAZ Case REPORTS: Primary endodermal sinus tumor presenting with spinal cord compression. Case report. DANIEL K. RESNICK, MARK R. MCLAUGHLIN, AND A. LELAND ALBRIGHT Regional parenchymal enhancement with mixed cavernous/venous malformations of the brain. Case report. CHRISTOPHER H. COMEY, DOUGLAS KONDZIOLKA, AND HOWARD YONAS .......20 .cec.e c.ece. ce.ce. ee-e ee ee Hyperactive pectoralis reflex as an indicator of upper cervical spinal cord compression. Report of 15 cases. JosEPH C. WaTSON, WILLIAM C. BROADDUS, MAuRICE M. SMITH, AND WAYNE S. KUBAL CASE ILLUSTRATION: Tumoral calcinosis of the cervical spine in an infant. Case illustration. JAMES F. Mooney III AND STEVEN S. GLAZIER . Book REVIEWS NEUROSURGICAL FORUM: DNR oa gcse Bb chain! 0la de 8°C 4 peo Sce:ew are FA ama SW wv diy einer b--S OLE din i on ee Journal of Neurosurgery February 1997, Volume 86, Number 2 CLINICAL ARTICLES: Classification of previously unclassified cases of craniosy is. PAUL D. CHUMAS, GIUSEPPE CINALLI, ERIC ARNAUD, DANIEL MARCHAC, AND DOMINIQUE RENIER Skull base chordomas: a management challenge. OsSAMA AL-MEFTY AND Luis A. B. BORBA................. Trigeminal neuralgia: a quantitative sensory perception threshold study in patients who had not undergone pre- vious invasive procedur+s. DAVID BOWSHER, JOHN B. MILES, CAROL E. HAGGETT, AND PAUL R. ELDRIDGE ..... Sensory effects of microvascular decompression in trigeminal neuralgia. JoHN B. MILes, PAUL R. ELDRIDGE, CAROL E. HAGGETT, AND DAVID BOWSHER Chronic electrical stimulation of the gasserian ganglion for the relief of pain in a series of 34 patients. ETHAN TAUB, MICHAEL MUNZ, AND RONALD R. TASKER Hypogiossal-facial nerve side-to-end anastomosis for preservation of hypoglossal function: results of delayed treat- ment with a new technique. YUTAKA SAWAMURA AND HIROSHI ABE ...........00. c.e c.ec.e e0ee. e0ee 0ee es Radiosurgery for cerebral AVMs in children and adolescents: the neurobehavioral outcome. DARiA RIvA, CHIARA PANTALEONI, MONICA Devoti, CHRISTER LINDQUIST, LADISLAU STEINER, AND CESARE GIORGI Endovascular treatment of acutely ruptured and unruptured aneurysms of the basilar bifurcation. JEAN RAYMOND, DANIEL Roy, MICHEL BOJANOWSKI, ROBERT MOUMDJIAN, AND GEORGES L’ESPERANCE..................----- Reducing the risk of rebleeding before early aneurysm surgery: a possible role for antifibrinolytic therapy. THOMAS J. LemrziG, KATHLEEN REDELMAN, AND TERRY G. HORNER Cerebral blood flow and temporal lobe epileptogenicity. MARTIN E. WeINAND, L. PHILIP CARTER, WALEED F. EL-SAADANY, PANAYioTis J. Sioutos, DAvip M. LABINER, AND KALARICKAL J. OOMMEN Treatment of syringomyelia associated with arachnoid scarring caused by arachnoiditis or trauma. JORG KLEKAMP, ULRICH BATZDORF, MADJID SAMII, AND HANS WERNER BOTHE ........ 2.2.2.2... cece cece ee eee cece eee eees Cerebral hyperglycolysis following severe traumatic brain injury in humans: a positron emission tomography study. MARVIN BERGSNEIDER, DAVID A. HovpA, EHUD SHALMON, DANIEL F. KELLY, PAUL M. Vespa, NEIL A. MARTIN, MICHAEL E. PHELPS, DAvip L. MCARTHUR, MICHAEL J. CARON, JESS F. KRAUS, AND DONALD P. BECKER....... LABORATOR’ INVESTIGATIONS: The suboccipital cavernous sinus. KENAN I. ARNAUTOVI, OSSAMA AL-MeErTy, T. GLENN PAiT, ALI F. KRISHT, AND MUHAMMAD M. HUusAIn .. Progiessive loss of glutamic acid decarboxylase, parvalbumin, and calbindin D28K immunoreactive neurons in the cerebral cortex and hippocampus of adult rat with experimental hydrocephalus. YUZURU TASHIRO, SHUSHOVAN CHAKRABORTTY, JAMES M. DRAKE, AND TOSHIAKI HATTORI Mechanisms of edema formation after intracerebral hemorrhage: effects of thrombin on cerebral blood flow, blood-brain barrier permeability, and cell survival in a rat model. Kevin R. LEE, NoBUYUKI KAWAI, SEOUNG KIM, OREN SAGHER, AND JULIAN T. HOFF Case REPORTS AND TECHNICAL NOTEs: Juvenile active ossifying fibroma. Report of four cases. MicHAEL T. LAwTon, JOSEPH E. HEISERMAN, STEPHEN W. Coons, BrucE D. RAGSDALE, AND ROBERT F. SPETZLER Multiple neoplasms following craniospinal irradiation for medulloblastoma in a patient with nevoid basal cell carcinoma syndrome. Case report. SEAN O’ MALLEY, DAVID WEITMAN, MICHAEL OLDING, AND LALIGAM SEKHAR. Disappearing cervical disk. Case report. RICHARD M. WesTMARK, KAYE D. WESTMARK, AND VOLKER K. H. SONNTAG. Development of anterior cranial fossa dural arteriovenous malformation following head trauma. Case report. TATSUYA ISHIKAWA, KrYOHIRO HOUKIN, KouIcH! TOKUDA, SUSUMU KAWAGUCHI, AND TAKESHI KASHIWABA Mobilization of the internal carotid artery for basilar artery aneurysm surgery. Technical note. TAKESHI MATSUYAMA, TAKAHIDE SHIMOMURA, YOSHINARI OKUMURA, AND TOSHISUKE SAKAKI Decompression via microsurgical anterior foraminotomy for cervical spondylotic myelopathy. Technical note. HAE-DONG JHO Waveform changes due to conduction block and their underlying mechanism in spinal somatosensory evoked, potential: a computer simulation. Technical note. TosHikAzU TANI, TAKAHIRO UsHiDA, HIROSHI YAMAMOTO, AND YOSHIYASU OKUHARA CASE ILLUSTRATIONS: Brachial plexus compression by venous aneurysms. Case illustration. Eric M. GABRIEL AND ALLAN H. FRIEDMAN. Hydatid cyst and brain tumor in the same location. Case illustration. Jos— ENRIQUE COHEN, HOWARD J. GINSBERG, Eve C. Tsai, MICHAEL L. SCHWARTZ, AND SERGIO PETROCELLI NOTICES SCIENTIFIC PROGRAMS: Annual Meeting of the American Association of Neurological Surgeons, April 12-17, 1997 Program Summary . Abstracts of Oral Presentations Annual Meeting of the Joint Section on Cerebrovascular Surgery, February 4-6, 1997 Program Summary .. Abstracts and Posters Abstracts of Oral Presentations of the Annual Meeting of the Joint Section on Disorders of the Spine and Peripheral Nerves, February 19-22, 1997 Journal of Neurosurgery March 1997, Volume 86, Number 3 CLINICAL ARTICLES: Cerebral autoregulation following minor head injury. ELISABETH C. JUNGER, Davin W. NEWELL, GERALD A. GRANT, ANTHONY M. AVELLINO, SAADI GHATAN, COLLEEN M. DoUVILLE, ARTHUR M. LAM, RUNE AASLID, AND H. RICHARD Head injuries due to falls caused by seizures: a group at high risk for traumatic intracranial hematomas. THOMAS J. ZWIMPFER, JENNIFER BROWN, IRENE SULLIVAN, AND RICHARD J. MOULTON Monitoring of autoregulation using laser Doppler flowmetry in patients with head injury. JoseEpH M. K. Lam, JOHN N. K. HSIANG, AND WAI S. POON Primary intracranial germ cell tumors: a clinical analysis of 153 histologically verified cases. MASAO MATSUTANI, KEI SANO, KINTOMO TAKAKURA, TAKAMITSU FUJIMAKI, OSAMU NAKAMURA, NOBUAKI FUNATA, AND TERUKAZU SETO. Hearing preservation in the removal of intracanalicular acoustic neuromas via the retrosigmoid approach. DAvip W. ROWED AND JULIAN M. NEDZELSKI The relationship of subarachnoid hemorrhage and the need for postoperative shunting. FERNANDO L. VALE, EDWIN L. BRADLEY, AND WINFIELD S. FISHER III A randomized, doubie-blind, vehicle-controlled trial of tirilazad mesylate in patients with aneurysmal subarach- noid hemorrhage: a cooperative study in North America. E. CLARKE HALEY, Jr., NEAL F. KASSELL, CAROLYN APPERSON-HANSEN, MARIE H. MAILE, WAYNE M. ALVES, AND THE PARTICIPANTS.............-020200e0eeeee Guglielmi detachable coil embolization of acute intracranial aneurysm: perioperative anatomical and clinical out- come in 403 patients. FERNANDO VINUELA, GARY DUCKWILER, AND MICHEL MAWAD LABORATORY INVESTIGATIONS: Vascular mechanisms in the pathophysiology of human spinal cord injury. CHARLES H. TATOR AND IZUMI KOYANAGI. Delayed cytokine expression in rat brain following experimental contusion. STAFFAN HOLMIN, MARTIN SCHALLING, Bo HOJEBERG, ANN-CHRISTIN SANDBERG NORDQVIST, ANN-KATRIN SKEFTRUNA, AND TiIT MATHIESEN............ Regional brain tissue pressure gradients created by expanding extradural temporal mass lesion. CHRISTOPHER E. Wee, Paes Ge. Leet, A SE IE, TONE on. a conc ea Caen s keene soe nee oncwehoweohhoanse s Improvement of cognitive deficits and decreased cholinergic neuronal cell loss and apoptotic cell death following neurotrophin infusion after experimental traumatic brain injury. GRANT SINSON, BRIAN R. PERRI, JOHN Q. TROJANOWSKI, EUGENE S. FLAMM, AND TRACY K. McINTOSH Normal perfusion pressure breakthrough: the role of capillaries. LALI H. S. SEKHON, MICHAEL K. MORGAN, AND rerery t ee ee Isolation and characterization of human malignant glioma cells from histologically normal brain. DANIEL L. SILBERGELD AND MICHAEL R. CHICOINE Nearest-neighbor classification for identification of aggressive versus nonaggressive low-grade astrocytic tumors by means of image cytometry—generated variables. CHRISTINE DECAESTECKER, ISABELLE SALMON, OLIVIER DEWITTE, ISABELLE CAMBY, PHILIPPE VAN HAM, JEAN-LAMBERT PASTEELS, JACQUES BROTCHI, AND ROBERT Kiss CASE REPORTS: Surgical interruption of a midline dorsal column visceral pain pathway. Case report and review of the literature. HARING J. W. NAUTA, ELENA HEWITT, KARIN N. WESTLUND, AND WILLIAM D. WILLIS Differentiating central neurocytoma. Case report. JOHN B. SCHWEITZER AND KEITH G. DAVIES................ Craniospinal dissemination of central neurocytoma. Report of two cases. DAviD Y. ENG, FRANCO DEMONTE, LAWRENCE GINSBERG, GREGORY N. FULLER, AND KURT JAECKLE ....00..2.2 .cece. ce.ce ee.e ee.e en. eeen ees Subdural sarcoma associated with chronic subdural hematoma. Report of two cases and review of the literature. GIUSEPPE CINALLI, MICHEL ZERAH, MICHEL CARTERET, FRANCOIS Doz, LAURENT VINIKOFF, ARIELLE LELLOUCH-TUBIANA, BEATRICE HUSSON, AND ALAIN PIERRE-KAHN Intravascular papillary endothelial hyperplasia of the sellar region. Report of three cases and review of the lit- erature. RUDOLF A. Kristor, DIRK VAN Roost, HELMUT K. WOLF, AND JOHANNES SCHRAMM “Miliary” metastatic tumors in the brain. Case report. CHHABI BHUSHAN Hypoplastic internal carotid artery mimicking a classic angiographic “string sign.”’ Case report. JASON A. HETH, CHRISTOPHER M. Lortus, JOHN G. PIPER, AND WILLIAM YUH CASE ILLUSTRATIONS: Dandy-Walker malformation associated with syringomyelia. Case illustration. GIUSEPPE CINALLI, LAURENT VINIKOFF, MICHEL ZERAH, DOMINIQUE RENIER, AND ALAIN PIERRE-KAHN Resolution of acquired tonsillar herniation after resection of supratentorial meningioma. Case illustration. STEPHEN T. ONesTI, ELY ASHKENAZI, ANN M. MILLER, AND W. JOST MICHELSEN...0..02. e.c ec.e .cec.e .ce.ce .ee.eee s So =k coke a:i ml gne a eed Une m.4 wade ple Sue Aare Le Se eee ee ee ee NEUROSURGICAL Forum: Letters to the Editor NOTICES Journal of Neurosurgery April 1997, Volume 86, Number 4 CLINICAL ARTICLES: Mortality rates, hospital length of stay, and the cost of treating subarachnoid hemorrhage in older patients: institutional and geographical differences. CHRISTOPHER L. TAYLOR, ZHONG YUAN, WARREN R. SELMAN, ROBERT A. RATCHESON, AND ALFRED A. RIMM Magnetic resonance imaging of obliterated arteriovenous malformations up to 23 years after radiosurgery. LARS KIHLSTROM, WAN-YUO Guo, BENGT KARLSSON, CHRISTER LINDQUIST, AND MELKER LINDQVIST Serial changes of hemostasis in aneurysmal subarachnoid hemorrhage with special reference to delayed ischemic neurological deficits. YUKIHIKO Fusi, SHIGEKAZU TAKEUCHI, OSAMU SASAKI, TAKASHI MINAKAWA, TETSUO KOIKE, AND RYUICHI TANAKA Intracarotid infusion of RMP-7, a bradykinin analog, and transport of gallium-68 ethylenediamine tetraacetic acid into human gliomas. KeirH L. BLACK, Tim CLOUGHESY, SUNG-CHENG HUANG, Y. PIERRE GOBIN, YUN ZHOU, JouHn Grous, GILLIAN NELSON, KEYVAN FARAHANI, CARL K. HOH, AND MICHAEL PHELPS Neuromagnetic evaluation of cortical auditory function in patients with temporal lobe tumors. NoBuKAZI NAKASATO, TOSHIHIRO KUMABE, AKITAKE KANNO, SATORU OHTOMO, KAZUO MIZOI, AND TAKASHI YOSHIMOTO . .. . Comparison of C1-2 posterior fusion and decompression of the vertebral artery in the treatment of bow hunter’s stroke. TAKESHI MATSUYAMA, TETSUYA MORIMOTO, AND TOSHISUKE SAKAKI Progressive posttraumatic myelomalacic myelopathy: treatment with untethering and expansive duraplasty. THOMAS T. Lee, Jose M. ARIAS, HEATHER L. ANDRUS, ROBERT M. QUENCER, STEVEN F. FALCONE, AND BARTH A. GREEN . Acute hydrocephalus in posterior fossa injury. HIDEHARU KARASAWA, HAJIME FURUYA, HIROMICHI NAITO, KEN SUGIYAMA, JUNJI UENO, AND HIROSHI KIN Cerebral blood flow as a predictor of outcome following -raumatic brain injury. DANIEL F. KeLLy, NEIL A. MARTIN, ROUZBEH KORDESTANI, GEORGE COUNELIS, DAavip A. HOVDA, MARVIN BERGSNEIDER, EHUD SHALMON, DUNCAN Q. McBripe, DENA HERMAN, AND DONALD P. BECKER...... Tremor control after pallidotomy in patients with Parkinson’s disease: correlation with microrecording findings. JAMAL M. TAHA, JACQUES FAVRE, THOMAS K. BAUMANN, AND KIM J. BURCHIEL ....................-200005- Peripheral selective neurotomy of the brachial plexus collateral branches for the treatment of the spastic shoulder: anatomical study and clinical results in five patients. PHiLippE Deco, PAUL FiLipetti, ANNAIK FEVE, MICHEL DsINDJIAN, AKIM SARAOUI, AND YVES KERAVEL ...............----. Electrophysiological investigation of hemifacial spasm after microvascular decompression: F waves of the facial muscles, blink reflexes, and abnormal muscle responses. MAMI ISHIKAWA, TAKAYUKI OHIRA, JUN NAMIKI, MASATO KOBAYASHI, MORIICHIRO TAKASE, TAKESHI KAWASE, AND SHIGEO TOYA.........020. c.ee. ee.e e.ee. ee. e.eee e Improvement of limb circulation in peripheral vascular disease using epidural spinal cord stimulation: a prospective study. KRISHNA KUMAR, Cory ToTH, RAHUL K. NATH, ASHOK K. VERMA, AND JOHN J. BURGESS... . LABORATORY INVESTIGATIONS: Toward an agreement on terminology of nuclear and subnuclear divisions of the motor thalamus. GioRGIO MACCHI AND EDWARD G. JONES Arterial pulsation—dependent perivascular cerebrospinal fluid flow into the central canal in the sheep spinal cord. Marcus A. STOoDLEY, SALLY A. BROWN, CHRISTOPHER J. BROWN, AND NIGEL R. JONES Correlation between venous stump pressure and brain damage after cortical vein occlusion: an experimental study. YUHEI YOSHIMOTO, MASARU ENDO, TAKASHI Mori, AND SUSUMU WAKAI. . Case REPORTS AND TECHNICAL NOTES: Mixed arteriovenous malformation and capillary telangiectasia: a rare subset of mixed vascular malformations. Case report. STEVEN D. CHANG, GARY K. STEINBERG, MARSHAL ROSARIO, REBECCA S. CROWLEY, AND ROBERT F. HEVNER .. Isolated straight sinus ‘and deep cerebral venous thrombosis: successful treatment with local infusion of urokinase. Case report. CHAD A. HOLDER, D. ANTONIO BELL, ANDREA L. LUNDELL, JOHN L. ULMER, AND STEVEN S. GLAZIER. Diagnosis of brain abscess by magnetic resonance spectroscopy. Report of two cases. IRENE MART{NEZ-PEREZ, ANGEL Moreno, JuLi ALonso, Jesis AGUAS, GERARD CONESA, ANTONI CAPDEVILA, AND CARLES ARUS Secondary multiple intracranial hydatid cysts caused by intracerebral embolism of cardiac echinococcosis: an exceptional case of hydatidosis. Case report. MEHMET TURGUT, KEMAL BENLi, AND MUZAFFER ERYILMAZ .... . Dural inversion procedure for moyamoya disease. Technical note. ROBERT C. DAUSER, GERALD F. TUITE, AND CHARLES W. McCLUGGAGE Balloon-assisted coil placement in wide-necked aneurysms. Technical note. Davip I. Levy AND ANDREW KU . Repositioning of the vertebral artery as treatment for neurovascular compression syndromes. Technical note. GHASSAN K. BEJJANI AND LALIGAM N. SEKHAR CASE AND TECHNICAL ILLUSTRATIONS: Proximal long fenestration associated with an internal carotid artery aneurysm. Case illustration. KIRSTEN SCHMIEDER, MARKUS HARDENACK, AND ALBRECHT HARDERS.....0.0 c.e c.ec.e c.e c.ece.c .cec.e .eec.ec.ece s Movable oil in the brain: intracranial ruptured dermoid tumors. Case illustration. Kosi YosHiMoTO, SHUNJI NISHIO, SATOSHI SUZUKI, MASASHI FUKUI, AND KANEHIRO HASUO Fluoroscopy of programmable cerebrospinal fluid shunt valve settings. Technical illustration. BRUCE A. KAUFMAN, CHRISTOPHER J. MORAN, AND JAMES SCHLESINGER Book REVIEWS Journal of Neurosurgery May 1997, Volume 86, Number 5 CLINICAL ARTICLES: Carboplatin and vincristine chemotherapy for children with newly diagnosed progressive low-grade gliomas. ROGER J. PACKER, JOANNE ATER, JEFFREY ALLEN, PETER PHILLIPS, RUSSELL Geyer, H. STACY NICHOLSON, REGINA JAKACKI, ELIZABETH KURCZYNSKI, MICHAEL NEEDLE, JONATHAN FINLAY, GREGORY REAMAN, AND JAMES M. BoyYeTT Prediction of posterior fossa tumor type in children by means of magnetic resonance image properties, spectroscopy, and nouvel networks. JEFFREY E. ARLE, CRAIG Morriss, ZHIYUE J. WANG, ROBERT A. ZIMMERMAN, PETER G. PHILLIPS, AND LESLIE N. SUTTON. Ultrasound-tailored functional hemispherectomy for surgical control of seizures in children. PAUL M. KANEV, CATHERINE M. FOLEY, AND DAN MILES : Fibrinolytic parameters as an odututen srupeeits enter of ar injury in patients who talk ont detectuante. HIROSHI TAKAHASHI, TETSUME! URANO, YUMIKO TAKADA, NOBUO NAGAI, AND AKIKAZU TAKADA Evaluation of the transient hyperemic response test in head-injured patients. PiioTR SMIELEWSKI, MiranK CZOSNYKA, PETER KIRK- PATRICK, AND JOHN D. PICKARD Intravenous insulin-like growth factor-I (IGF- 1 iinn a mimatetnenen head injury: a Phase Il safety and efficacy trial. Jimmi HATTON, ROBERT P. RAPP, KENNETH A. Kupsk, REx O. Brown, MARK S. Luer, JULIE G. BUKAR, SHARON A. CHEN, CRAG J.M CCLAIN, Nei. GESUNDHEIT, ROBERT J. DEMPSEY, AND BYRON YOUNG ; Results of surgery for head and neck tumors that involve the carotid artery at the skull base. MicHAeL H. BRISMAN, CHANDRANATH SEN, AND PETER CATALANO Long-term prognosis for atypical _ maflaneete meningiomas: a naly of n coped cases. LUCIO PALMA, PAOLO CELLI, CARMINE FRANCO, LuiGi CERVONI, AND GIAMPAOLO CANTORE : Surgery for cerebral arteriovenous malformation: risks related to lenticulostriate arterial super. MICHAEL K. Mannan, KATHARINE J. DRUMMOND, VERITY GRINNELL, AND WILLIAM SORBY Hemodynamic and metabolic disturbances in patients with ttvensaniel auntea rteriovenous fistulas: gudieen emission tomog- raphy evaluation before and after treatment. Toru IwAMA, NoBuo HASHIMOTO, YASUSHI TAKAGI, MICHIHIRO TANAKA, SATOSHI YAMAMOTO, SHOGO NISHI, AND KOHEI HAYASHIDA The widened retrolabyrinthine approach: a new concept in acoustic neuroma surgery. VINCENT on ZET, JEAN GUERIN, NAAMAN AOQUAD, JAROMIR DUTKIEWICZ, ALEXANDER W. BLAYNEY, AND JEAN-PIERRE BEBEAR wide’ Petrous apex cholesterol granulomas: evolution and management. Mark B. EISENBERG, GEORGE yanoen, AND OSSAMA AL-MEFTY . Effect of transluminal angioplasty on cerebral blood flow in the management of symptomatic vasospasm following aneurysmal subarachnoid hemorrhage. ANDREW D. FiRLIik, ANTHONY M. KAUFMANN, CHARLES A. JUNGREIS, AND HOWARD YONAS....... Hydroxyurea for treatment of unresectable and recurrent meningiomas. II. Decrease in the size of meningiomas in patients treated with hydroxyurea. Uwe M. H. SCHRELL, MICHAEL G. RiTTIG, MARC ANDERS, Uwe H. Kocu, ROLF MARSCHALEK, FRANKLIN KIESEWETTER, AND RUDOLF FAHLBUSCH .. . LABORATORY INVESTIGATIONS: Hydroxyurea for treatment of unresectable and recurrent meningiomas. I. Inhibition of primary human meningioma cells in culture and in meningioma transplants by induction of the apoptotic pathway. Uwe M. H. SCHRELL, MICHAEL G. RITTIG, MARC ANDERS, FRANKLIN KIESEWETTER, ROLF MARSCHALECK, Uwe H. KocH, AND RUDOLF FAHLBUSCH . Clonality of multiple meningiomas. ARMIN P. STANGL, RUTH WELLENREUTHER, Doris LENARTZ, JURGEN A. —_A us, ANIL G. MENON, JOHANNES SCHRAMM, OTMAR D. WIESTLER, AND ANDREAS VON DEIMLING Effects of intraluminal or extraluminal endothelin on perfused rabbit basilar arteries. SHUJI KAZUKI, ‘RasoOuma, RYUSUKE OGAWA, MaSAo Tsusi, You! TAMURA, YASUSHI YOSHIZAKI, AND TAKASHI TAKASE ............. Spatial pattern of type I collagen expression in injured peripheral nerve. RAHUL K. NATH, SUSAN E. MACKINNON, Jom N. inant, AND WILLIAM C. PARKS Potential efficacy of basic fibroblast musth factor tennapnnnedt in biodegradable hydrogels for skull bone aaentien, KEISUKE YAMADA, YASUHIKO TABATA, KAZUO YAMAMOTO, SUSUMU MIYAMOTO, IZUMI NAGATA, HARUHIKO KIKUCHI, AND YOSHITO IKADA. Paradoxical effects of acute ethanolism in experimental brain injury. DANIEL F. KELLY, STEFAN M. Lee, PATTY A. PINANONG, AND Davip A. HovDa Case REPORTS AND TECHNICAL NOTE: Epstein-Barr virus—associated dural leiomyosarcoma in a man infected with human immunodeficiency virus. Case report. SUSAN MORGELLO, ANGELIKI KOTSIANTI, JEFFREY P. GUMPRECHT, AND FRANK MOORE..............2-000000000000 s Erdheim—Chester disease of the central nervous system. Report of two cases. RAMESH P. BABU, THOMAS A. LANSEN, AMY CHADBURN, AND SAMUEL S. KASOFF Bilateral superior ophthalmic vein enlargement associated with diffuse content ondiieg, —— of 11 cases. Ronit K. KHANNA, CHRISTOPHER J. PHAM, GHAUS M. MALIK, Eric M. SpiCKLER, BHARAT MEHTA, AND MARK L. ROSENBLUM Lymphoplasmacyte-rich meningioma with clinical resemblance to inflammatory pseudotumor. Report of two cases. TOSHIAKI YAMAKI, TATSURU IKEDA, YASUO SAKAMOTO, MASAFUMI OHTAKI, AND KAZUO HASHI A burr hole button to secure the electrode cable in depth electrode placement. Technical note. TosHiFUMI KAMIRYO AND EDWARD R. Laws, Jr. .. CASE ILLUSTRATION: Syringomyelia associated with a posterior fossa cyst. Illustration of two cases. TOMOO TOKIME, SHINICHIRO OKAMOTO, SEN YAMAGATA, AND TSUNEKI KONISHI . Book REVIEWS ............. NEUROSURGICAL Forum: Letters to the Editor NOTICES Journal of Neurosurgery June 1997, Volume 86, Number 6 CLINICAL ARTICLES: Stereotactic biopsy of nonpolar tumors in the dominant hemisphere: a prospective study of effects on praueed functions. ANN- MARIE THOMSON, ROBERT TAYLOR, DIANE FRASER, AND IAN R. WHITTLE . . Prospective study of zero drift in fiberoptic pressure monitors used in clinical practice. Ses BAveTTA, JOHN S. Nenam, “Mic HELLE Wyatt, Joun C. SUTCLIFFE, AND PETER J. HAMLYN Long-term improvement in patients with severe Parkinson’s Gun afteri mplantation of fetal ventral sesneneusiaiie tissue in a cavity of the caudate nucleus: 5-year follow up in 10 patients. Juan J. LOpez-LozaNno, GONZALO BRAVO, BEGONA BRERA, ISABEL MILLAN, Jose DARGALLO, JAVIER SALMEAN, Jose UriA, JOSE INSAUSTI, AND THE CLINICA PUERTA DE HiERRO NEURAL TRANS- PLANTATION GROUP Anaplastic ependymoma: treatment of pediatric patients with or without craniospinal radiation therapy. THOMAS E banc HANT, Tont HaipA, MING-Hst—EN WANG, JONATHAN FINLAY, AND STEVEN A. LEIBEL . . Basilar invagination in osteogenesis imperfecta and related RRC KranNn medical and ——- management. PAUL D. SAWIN AND ARNOLD H. MENEZES ; Radiological and anatomical evaluation of the atlantoaxial ommestinden screw fixation entndape. At! ABou MADAWI, ADRIAN T. H. Casey, Guirish A. SOLANKI, GERALD Turre, ROBERT VERES, AND H. ALAN CROCKARD. are wen Revision of anterior cervical pseudarthrosis with anterior ieee fusion and plating. DomAGos Coric, CHARLES L. BRANCH, Jr., AND JEFFREY D. JENKINS ; Management of postoperative infections after spinal instrumentation. ALLAN D. O. Levi, cU RTIS A. Be KMAN, AND VOLKER K. H. SONNTAG =~ ; Primary reconstruction for spinal infections. DONALD D. Die TZE, la, RicH ARD G. FESSLER, AND R. PATRICK laces . Multilevel anterior cervical corpectomy and fibular allograft fusion for cervical myelopathy. R. Loc MACDONALD, MICHAEL G. FeHLincs, CHARLES H. TaTtor, ANDRES LOZANO, J. Ross FLEMING, FRED GENTILI, MARK BERNSTEIN, M. CHRIS WALLACE, AND RONALD R. TASKER .ABORATORY INVESTIGATIONS: Chymopapain-induced reduction of proinflammatory phospholipase A, activity and amelioration of neuropathic behavioral changes in an in vivo model ofa cute sciatica. PauL D. Sawin, VINCENT C. TRAYNELIS, GRETCHEN Rich, BRUCE A. SMITH, TIMOTHY J. MAvesS, KENNETH A. FOLLETT, AND STEVEN A. Moort Reduction of spinal cord injury by administration of iloprost, a stablep usnatinandie en Yust TAOKA, KENJI OKAJIMA, MITSUHIRO UcnHIBA, KAZUNORI MURAKAMI, NAOAKI HARADA, MASAYOSHI JOHNO, MASAKUNI NARUO, HIROAKI OKABE, AND KIYOSHI TAKATSUKI. Development of a dural substitute from synthetic bioabsorbable polymers. KeEisuKE YAMADA, SUSUMU MiyAMorTo, IZUMI NAGATA, HARUHIKO KIKUCHI, YOSHITO IKADA, Hiroo IWATA, AND KAZUO YAMAMOTO “ASE REPORTS AND TECHNICAL NOTES: Inadequate PAX-/ gene expression as a cause of agenesis of the thoracolumbar won with failure of ie Case report. BENJAMIN C. LOPEZ, KAROLY M. DAvip, AND H. ALAN CROCKARD. . Calcium carbonate apatite deposition in the cervical spine with associated vertebral \doatreaiien, |Ca se report. JEFFREY G. OJEMANN, Rosert L. Gruss, MICHAEL KYRIAKOS, AND Kim B. BAKER cad Synovial cyst and degeneration of the transverse ligament: an unusual cause eof high cunteed myelopathy. Case sates PATRICK FRANSEN, GIAN PAOLO PizZOLATO, PHILIPPE OTTEN, ALAIN REVERDIN, RENE LAGIER, AND NICOLAS DE TRIBOLET Rotational occlusion of the vertebral artery caused by transverse process hyperrotation and unilateral apophyseal joint sub- luxation. Case report. TEeTSURO KAWAGUCHI, SHIGEKIYO FusiTa, KOHKICHI Hosopa, Yusi SHIBATA, MASAKI IWAKURA, AND NoRIHIKO TAMAKI Saphenous vein graft bypass of the sigmoid sinus a came bulb Gute the mamal of cum Stun tumors. Reportoo f two cases. LALIGAM N. SEKHAR, Fotios N. Tzortzipis, GHASSAN K. BEJJANI, AND DAviD A. SCHESSEI ; Multifocal noninfectious granulomatous encephalitis in a child. Case report. Topp M. Lasner, Lestie N. SuTTON, AND Lucy B. RORKE Craniopharyngioma arising de novo in middle age. Case oneet Marc S. ARGINTEANU, KARIN HAGUE, ROBERT ZIMMERMAN, MARK J. KUPERSMITH, JOHN H. SHAIU, JOHN SCHAEFFER, AND KALMON D. Post. Solitary fibrous tumor of the meninges. Case report and review of the literature. RICHARD A. PRAYSON, JAMES T. MCMAHON, AND GENE H. BARNETT Selective cochlear neurotomy in the cerebellopontine cistern using5 decteegigutinaiet nines ina outlet with intractable tinnitus. Case report. HirosHi Ryu, Seui YAMAMOTO, KENJI SUGIYAMA, AND KENICHI UEMURA. Direct brainstem recording of auditory evoked potentials during vestibular schwannoma resection: nuclear BAE P P recording Technical note and preliminary results. CoRDULA MATTHIES AND MApsip SAMI Ventriculofemoroatrial shunt: a viable alternative for the treatment of hydrocephalus. Technical note. MATTHEW F. PHILIPs, STEVEN B. SCHWARTZ, ALEXANDER D. SOUTTER, AND LESLIE N. SUTTON Case ILLUSTRATION: Serial magnetic resonance imaging of delayed radiation necrosis treated with dexamethasone. Case illustration. Eui TADA, KENGO MATSUMOTO, MINORU NAKAGAWA, TAKASHI TAMIYA, TOMOHISA FURUTA, AND TAKASHI OHMOTO . Book REVIEWS NEUROSURGICAL Forum: Letters to the Editor NOTICES INDEX To VOLUME 86