BACKGROUNDCranial nerve palsy is a rare complication after patients with nasopharyngeal carcinoma (NPC) receive radiotherapy using a technique that delivers 180–200 centigrays (cGy) per day. Cranial neuropathy is of particular clinical interest in terms of making a differential diagnosis, because it is also a common presenting manifestation in patients with NPC. Cranial neuropathy may lead to distressing signs and symptoms in these patients, and their treatment has not been addressed in previous reports. This article presents the authors' experience with radiotherapy‐related cranial nerve palsy in patients with NPC.METHODSNineteen patients were diagnosed with radiation‐related neuropathy. Patients with recurrent tumors or with a suspicion of persistent or recurrent tumors were excluded. Most patients were treated using 180 cGy or 200 cGy per fraction per day. The total dose was 7000–13,000 cGy to the nasopharynx and 5000–9000 cGy to the neck. Unilateral vocal cord paralysis alone and hearing loss were not included in the analysis.RESULTSThere were 15 male patients and 4 female patients. The latency before palsy occurred was 12–240 months. Single nerve palsy developed in four patients, including two patients with hypoglossal palsy and two patients with recurrent laryngeal palsy. Two patients had three nerve palsies each. The other 13 patients presented with 2 nerve palsies each. Vagus and hypoglossal palsy appeared to be a frequent combination and occurred in 11 patients. Overall, there were 17 patients with hypoglossal palsy (7 bilateral, 8 left‐sided, and 2 right‐sided), 11 patients with vagus palsy (2 bilateral, 7 left‐sided, and 2 right‐sided), 6 patients with recurrent laryngeal nerve palsy (5 bilateral), and 2 patients with accessory palsies (all bilateral). Marked neck fibrosis was present in 12 patients. Patients who had vocal cord paralysis suffered from easy choking and hoarseness. Severe respiratory difficulty occurred in two patients who had bilateral vocal cord palsy. Surgical procedures included laryngoplasty, tracheostomy, and gastrostomy. Quality of life improved considerably after patients underwent surgery.CONCLUSIONSRadiotherapy‐related cranial nerve palsy may occur in patients with NPC after they receive conventional radiotherapy. Hypoglossal nerve palsy was found the most frequently in this series, followed by vagus nerve palsy and recurrent laryngeal nerve palsy. Neck fibrosis and the course of the three nerves through the neck may be important risk factors for the development of palsy. The diagnosis must be made only after the possibilities of tumor‐induced palsy and idiopathic palsy are excluded. Surgery is helpful in improving the quality of life in many patients. Cancer 2002;95:404–9. © 2002 American Cancer Society.DOI 10.1002/cncr.10668
Background: Epidemiological evidence suggests that heavy alcohol consumption increases the risk for either stroke or liver disease. The goal of this study was to determine whether heavy drinkers with mild liver disorder (MLD) are at risk of hemorrhagic stroke. Methods:All of the 524 patients recruited were males with a first-ever acute stroke and were consecutively admitted to the Tri-Service General Hospital between January 2000 and December 2001. The risk factors, liver function, stroke subtypes, and hemostatic factors were assessed among 68 patients defined as heavy drinker stroke (HDS) and 456 patients as nonheavy drinker stroke (NHDS). Results: HDS patients had a significantly higher incidence of hemorrhagic stroke than NHDS patients. HDS patients were also associated with significantly higher occurrence of cigarette smoking, hyperuricemia, liver dysfunction, and significantly lower platelet counts. HDS patients with MLD were more likely to have hemorrhagic stroke (76.5%) than HDS patients without MLD (33.3%) and NHDS patients with (40.3%) or without (26.7%) MLD. HDS patients with MLD also exhibited a significantly higher glutamic oxaloacetic transaminase/glutamic pyruvic transaminase ratio (2.0 ± 1.2) and lower platelet number (185,000 ± 85,000 per µl) when compared with HDS patients without MLD (1.4 ± 0.5; 206,000 ± 59,000 per µl) and NHDS patients with (1.1 ± 1.0; 256,000 ± 97,000 per µl) or without (1.4 ± 0.7; 216,000 ± 68,000 per µl) MLD. Conclusions: HDS patients with MLD are at higher risk for hemorrhagic stroke in part due to the changes in hemostatic factors, although other factors may also contribute to hemorrhagic stroke.
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