A 62-year-old man with an acute onset of consciousness disturbances

• Published in: No To Shinkei Vol. 49; no. 12; p. 1161
• Main Authors: Koshimura, I, Sugita, H, Sato, K, Suzuki, H, Mori, H, Suda, K, Takubo, H, Mizuno, Y
• Format: Journal Article
• Language: Japanese
• Published: Japan 01.12.1997
• Subjects: Acute Disease; Cerebrovascular Disorders - etiology; Cerebrovascular Disorders - pathology; Consciousness Disorders - diagnosis; Consciousness Disorders - etiology; Glasgow Coma Scale; Humans; Male; Middle Aged; Myocardial Infarction - complications; Myocardial Infarction - pathology
• ISSN: 0006-8969

We report a 62-year-old man who developed coma and died in a fulminant course. The patient was well until May 1, 1996 when he noted chillness, tenderness in his shoulders, and he went to bed without having his lunch and dinner. In the early morning of May 2, his families found him unresponsive and snoring; he was brought into the ER of our hospital. He had histories of hypertension, gout, and hyperlipidemia since 42 years of the age. On admission, his blood pressure was 120/70, heart rate 102 and regular, and body temperature 36.3 degrees C. His respiration was regular and he was not cyanotic. Low pitch rhonchi was heard in his right lower lung field. Otherwise general physical examination was unremarkable. Neurologic examination revealed that he was somnolent and he was only able to respond to simple questions such as opening eyes and grasping the examiner's hand, but he was unable to respond verbally. The optic discs were flat; the right pupil was slightly larger than the left, but both reacted to light. He showed ptosis on the left side, conjugate deviation of eyes to the left, and right facial paresis. The oculocephalic response and the corneal reflex were present. His right extremities were paralyzed and did not respond to pain Deep tendon reflexes were exaggerated on the right side and the plantar response was extensor on the right. No meningeal signs were present. Laboratory examination revealed the following abnormalities; WBC 18,400/ml, GOT 131 IU/l GPT 50 IU/l, CK616 IU/l, BUN 30 mg/dl, Cr 2.1 mg/ dl, glucose 339 mg/dl, and CRP 27.4 mg/dl. ECG showed sinus tachycardia and ST elevation in II, III and a VF leads and abnormal q waves in I, V5, and V6 leads. Chest X-ray revealed cardiac enlargement but the lung fields were clear. Cranial CT scan revealed low density areas in the left middle cerebral and left posterior cerebral artery territories. The patient was treated with intravenous glycerol infusion and other supportive measures. At 2: 10 AM on May 3, he developed sudden hypotension and cardiopulmonary arrest. He was pronounced dead at 3:45 AM. The patient was discussed in a neurological CPC, and the chief discussant arrived at the conclusion that the patient had acute myocardial infarction involving the inferior and the true posterior walls and left internal carotid embolism from a mural thrombus. Post mortem examination revealed occlusion of the circumflex branch of the left coronary artery due to atherom plaque rupture and myocardial infarction involving the posterior and the lateral wall with a rupture in the postero-lateral wall. Marked atheromatous changes were seen in the left internal carotid, the middle cerebral and the basilar arteries; the left internal carotid and the middle cerebral arteries were almost occluded by thrombi and blood coagulate. The territories of the left middle cerebral and the occipital arteries were infarcted; but the left thalamic area was spared. The neuropathologist concluded that the infarction was thrombotic origin not an embolic one as the atherosclerotic changes were severe. Cardiac rupture appeared to be the cause of terminal sudden hypotension and cardiopulmonary arrest. It appears likely that a vegetation which had been attached to the aortic valve induced thromboembolic occlusion of the left internal carotid artery which had already been markedly sclerotic by atherosclerosis. It is also possible that the vegetations in the aortic valve came from mural thrombi at the site of acute myocardial infarction, as no bacteria were found in those vegetations.