{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T20:27:25Z","timestamp":1772310445699,"version":"3.50.1"},"reference-count":55,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[1992,5]]},"abstract":"<jats:p content-type=\"fine-print\">\u2713 To optimize orientation and operative exposure for aggressive resection, the authors approached pineal region tumors transtentorially with the patient in a semisitting position. In the current report, 12 consecutive patients were evaluated to document operative ocular morbidity referable to the brain stem as well as visual deficits secondary to occipital lobe retraction. Before craniotomy, ophthalmological findings related to dorsal midbrain dysfunction were evident in four of the 10 patients who had previously undergone ventricular shunting. The other patients developed a partial or complete Parinaud's syndrome in the early postoperative period and some suffered additional deficits such as cranial nerve palsies. These deficits improved to varying degrees in all patients. Although each had full visual fields preoperatively, an absolute or incomplete left homonymous hemianopsia developed in the immediate postoperative period. Such visual field deficits fully resolved over a variable period of time in 10 of the 12 patients. One patient has a permanent left homonymous hemianopsia, while another has a left homonymous paracentral scotoma. Eight patients were able to return to preoperative pursuits. While ocular abnormalities related to dorsal midbrain dysfunction are most probably independent of operative approach, visual field deficits attributable to occipital lobe retraction were common in patients after a occipital transtentorial approach performed in the semisitting position. Reading difficulties associated with ocular motor dysfunction due to dorsal midbrain involvement represent the principal long-term neuro-ophthalmological complaint of patients who have undergone pineal region surgery.<\/jats:p>","DOI":"10.3171\/jns.1992.76.5.0746","type":"journal-article","created":{"date-parts":[[2009,5,26]],"date-time":"2009-05-26T20:33:37Z","timestamp":1243370017000},"page":"746-751","source":"Crossref","is-referenced-by-count":69,"title":["Neuro-ophthalmological function of patients with pineal region tumors approached transtentorially in the semisitting position"],"prefix":"10.3171","volume":"76","author":[{"given":"Jules M.","family":"Nazzaro","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"William T.","family":"Shults","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Edward A.","family":"Neuwelt","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1","series-title":"Diagnosis and Treatment of Pineal Region Tumors.","first-page":"61","article-title":"Diagnostic radiology of pineal tumors","author":"Anderson","year":"1984"},{"key":"b2","series-title":"Surg Neurol","doi-asserted-by":"publisher","first-page":"298","DOI":"10.1016\/0090-3019(88)90161-9","article-title":"Three-quarter prone approach to the pineal-tentorial region.","volume":"29","author":"Ausman","year":"1988"},{"key":"b3","series-title":"Neurology","doi-asserted-by":"publisher","first-page":"54","DOI":"10.1212\/WNL.35.1.54","article-title":"Dorsal midbrain syndrome. 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