scholarly journals One-and-a-half syndrome followed by the acquired pendular vertical nystagmus, brachial myoclonus and olivary hypertrophy caused by a pontine hemorrhage

2017 ◽  
Vol 76 (6) ◽  
pp. 674-683
Author(s):  
Jun-Ichi Yokota ◽  
Yayoi Amakusa
Keyword(s):  
Pontine Hemorrhage ◽  
Olivary Hypertrophy ◽  
Vertical Nystagmus

Inferior Olivary Hypertrophy Is Associated with a Lower Functional State after Pontine Hemorrhage

2007 ◽  
Vol 24 (4) ◽  
pp. 369-374 ◽  
Author(s):  
Hajime Yagura ◽  
Ichiro Miyai ◽  
Megumi Hatakenaka ◽  
Takehiko Yanagihara
Keyword(s):  
Functional State ◽  
Pontine Hemorrhage ◽  
Olivary Hypertrophy ◽  
Inferior Olivary

Isolated, monocular vertical nystagmus: single symptom of an extensive intracerebral tumor

2011 ◽  
Vol 42 (S 01) ◽  
Author(s):  
V Haug ◽  
M von Rhein ◽  
K Frauenknecht ◽  
J Faber ◽  
B Reitter
Keyword(s):  
Intracerebral Tumor ◽  
Vertical Nystagmus

scholarly journals Upbeat vertical nystagmus after brain stem cavernoma resection: a rare case of nucleus intercalatus/nucleus of roller injury

2020 ◽  
Vol 267 (10) ◽  
pp. 2865-2870
Author(s):  
Torstein R. Meling ◽  
Aria Nouri ◽  
Adrien May ◽  
Nils Guinand ◽  
Maria Isabel Vargas ◽  
...  
Keyword(s):  
Rare Case ◽  
Vascular Malformations ◽  
Clinical Manifestations ◽  
Neurological Injury ◽  
Medial Longitudinal Fasciculus ◽  
Blurred Vision ◽  
Complete Excision ◽  
First Case ◽  
Vertical Nystagmus ◽  
Upbeat Nystagmus

Abstract Introduction CNS cavernomas are a type of raspberry-shaped vascular malformations that are typically asymptomatic, but can result in haemorrhage, neurological injury, and seizures. Here, we present a rare case of a brainstem cavernoma that was surgically resected whereafter an upbeat nystagmus presented postoperatively. Case report A 42-year old man presented with sudden-onset nausea, vomiting, vertigo, blurred vision, marked imbalance and difficulty swallowing. Neurological evaluation showed bilateral ataxia, generalized hyperreflexia with left-sided predominance, predominantly horizontal gaze evoked nystagmus on right and left gaze, slight left labial asymmetry, uvula deviation to the right, and tongue deviation to the left. MRI demonstrated a 13-mm cavernoma with haemorrhage and oedema in the medulla oblongata. Surgery was performed via a minimal-invasive, midline approach. Complete excision was confirmed on postoperative MRI. The patient recovered well and became almost neurologically intact. However, he complained of mainly vertical oscillopsia. The videonystagmography revealed a new-onset spontaneous upbeat nystagmus in all gaze directions, not suppressed by fixation. An injury of the rarely described intercalatus nucleus/nucleus of Roller is thought to be the cause. Conclusion Upbeat nystagmus can be related to several lesions of the brainstem, including the medial longitudinal fasciculus, the pons, and the dorsal medulla. To our knowledge, this is the first case of an iatrogenic lesion of the nucleus intercalatus/nucleus of Roller resulting in an upbeat vertical nystagmus. For neurologists, it is important to be aware of the function of this nucleus for assessment of clinical manifestations due to lesions within this region.

ASPERGILLUS FLAVUSMENINGITIS AND PONTINE HEMORRHAGE IN AN OLDER PATIENT

1996 ◽  
Vol 44 (6) ◽  
pp. 739-740 ◽  
Author(s):  
A. Adunsky ◽  
E. Rubinstein ◽  
A. Goldsmith
Keyword(s):  
Older Patient ◽  
Pontine Hemorrhage

Prolonged Vertical Nystagmus After Pentobarbital Sodium Administration

1975 ◽  
Vol 80 (1) ◽  
pp. 151-152 ◽  
Author(s):  
Simmons Lessell ◽  
Philip A. Wolf ◽  
David Chronley
Keyword(s):  
Pentobarbital Sodium ◽  
Vertical Nystagmus

Monocular Vertical Nystagmus as an Initial Sign of Chiasmal Glioma

1979 ◽  
Vol 87 (1) ◽  
pp. 87-90 ◽  
Author(s):  
Joel A. Schulman ◽  
William T. Shults ◽  
J. Mcandrew Jones
Keyword(s):  
Initial Sign ◽  
Vertical Nystagmus

Posteroventral pallidotomy for midbrain tremor after a pontine hemorrhage

1999 ◽  
Vol 91 (5) ◽  
pp. 885-888 ◽  
Author(s):  
Yasushi Miyagi ◽  
Fumio Shima ◽  
Katsuya Ishido ◽  
Masashi Moriguchi ◽  
Kazufumi Kamikaseda
Keyword(s):  
Upper Extremity ◽  
High Frequency ◽  
Upper Extremities ◽  
Proximal Segment ◽  
Action Tremor ◽  
Content Type ◽  
Pontine Hemorrhage ◽  
Posteroventral Pallidotomy ◽  
Left Thalamus ◽  
Midbrain Tremor

✓ This 49-year-old man gradually developed a disabling action tremor in the proximal right upper extremity 8 months after suffering a pontine tegmental hemorrhage. The intraoperative microrecording in the nucleus ventralis intermedius (VIM) of the left thalamus revealed tremor-synchronous grouped discharges with a vigorous (2.7 Hz) action tremor predominantly in the shoulder and upper arm. High frequency electrical stimulation in the VIM did not affect the tremor. A posteroventral pallidotomy (PVP) was performed and resulted in the successful alleviation of all tremor activity. Posteroventral pallidotomy is known to alleviate parkinsonian tremors, especially those occurring in the contralateral lower extremity, trunk, and proximal segment of the contralateral upper extremity. The authors consider the pallidoreticular pathway to be an important tremor-mediating pathway for the proximal segment of the upper extremities and believe it can be controlled more effectively by PVP than by VIM thalamotomy, as demonstrated by the PVP-induced resolution of the midbrain tremor observed in this case.

Medicolegal evaluation of pontine hemorrhage at autopsy- Highlights from a case and an overview

2021 ◽  
Vol 6 (3) ◽  
pp. 77-85
Author(s):  
Pawan Mittal
Keyword(s):  
Underlying Mechanism ◽  
Abrupt Onset ◽  
Excited Delirium ◽  
Vertebrobasilar System ◽  
Pontine Hemorrhage ◽  
Severe Atherosclerosis ◽  
Medicolegal Autopsy ◽  
History Of ◽  
Intracerebral Hemorrhages ◽  
The Subject

One in ten non-traumatic intracerebral hemorrhages (ICH) is located in the pons with chronic arterial hypertension as the leading etiology. In the forensic context, deaths related to a pontine hemorrhage (PH) are usually encountered in situations of drug abuse, excited delirium, trauma, as well as in sudden natural deaths where some hypertensive catastrophe is the usual underlying mechanism. The clinical presentation of PH may be variable, causing a failure in timely diagnosis that, if presents with unexplainable circumstances, may become the subject of medicolegal concern. The present case relates to a middle-aged man with a long history of hypertension and presents during an afternoon with an abrupt onset of deleterious symptoms. The patient was managed conservatively but succumbed to his illness and expires during treatment. A questionable diagnosis and the case circumstances, however, directed the doctors to inform the police. A medicolegal autopsy was therefore carried out that leads to the discovery of a lethal pontine hemorrhage rupturing into the fourth ventricle and involving the adjacent cerebellar tissues as well. Severe atherosclerosis of the basal arteries constituting Circle of Willis and Vertebrobasilar system was seen along with their hallmark effects that became evident during brain sectioning. Pathological stigmata of well established hypertension were found in the heart and kidneys. A clinic pathological correlation of the physical characteristics and topography of the hematoma to its severity was also carried out, based upon the known CT and autopsy findings. The possibility of a drug related or traumatic and secondary brainstem/Duret hemorrhage was ruled out.

Fundamental Morphological Changes in Human Olivary Hypertrophy

1992 ◽  
Vol 42 (6) ◽  
pp. 408-413
Author(s):  
Koichi Okamoto ◽  
Shunsaku Hirai ◽  
Tomomichi Lizuka ◽  
Mitsunori Watanabe
Keyword(s):  
Morphological Changes ◽  
Olivary Hypertrophy
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