Following is the line of treatment:
Medical therapy: Some cases require no treatment. Often, glomus jugulare tumors are diagnosed within the sixth or seventh decade of life and can be followed by imaging only and may not need surgical intervention.
Medical therapy may be indicated in some cases. Alpha-blockers and beta-blockers are useful for tumors secreting catecholamines. They are usually administered for 2-3 weeks before embolization and/or surgery to avoid potentially lethal blood pressure lability and arrhythmias. Successful treatment of pulmonary metastases with etoposide (VP-16) and cisplatin has been described. In a preliminary report, a somatostatin analogue (octreotide) has been successfully used for growth control of somatostatin receptor–positive tumors.
Surgical therapy: Surgery is the treatment of choice for glomus jugulare tumors. Surgical approach depends on the localization and extension of the tumor. Intraoperative monitoring including EEGs and somatosensory-evoked potentials (SSEPs) are routinely used.
Fisch type A tumors can be excised by a transmeatal or perimeatal approach.
Type B tumors require an extended posterior tympanotomy.
Type C tumors require radical resection via a standard combined transmastoid-infratemporal or transtemporal-infratemporal approach with or without ICA trapping, preceded by external carotid artery embolization or superselective embolization. Intraoperatively, temporarily occlude the transverse or sigmoid sinus with EEG monitoring to determine whether vein bypass should be performed for total resection. Surgery leads to therapeutic success in about 90% of patients. Intratumoral injection of cyanoacrylate glue has been proposed to control bleeding.
Large type D tumors need to be treated with a combined otologic and neurosurgical approach. An infratemporal approach with a skull base resection and a posterior fossa exploration are the most advisable in the attempt to remove the entire tumor. Partial resection of the tumor needs to be followed by radiation and follow-up MRI/CT scanning.
Radiation therapy and radiosurgery may be indicated. Both classic fractionated radiation therapy (40-50 Gy) and stereotactic radiosurgery (eg, gamma knife surgery) are successful in long-term control of tumor growth and in decrease of catecholamine excretion in functional tumors; however, the short duration of observation after stereotactic radiosurgery does not allow for definite conclusions. Radiation treatment is advised as the sole treatment modality for elderly or infirm patients who are symptomatic, especially those with extensive or growing tumors.
Gross total resection of some extensive tumors may be extremely difficult and may carry unwarranted risk. In such cases, radiotherapy may be indicated to treat residual tumor following subtotal resection.
Preoperative details: If routine screening for catecholamine is positive (3 times the reference range), alpha-blockers and beta-blockers are administered for 2-3 weeks before surgery and embolization. This helps to avoid blood pressure lability and arrhythmias. In emergent cases, 3 days of treatment is adequate.
Intraoperative details: Surgical approach depends on the localization and extent of the tumor. Fisch type A tumors can be excised by a transmeatal or perimeatal approach. Type B tumors require an extended posterior tympanotomy. Type C tumors require radical resection via a standard combined transmastoid-infratemporal or transtemporal-infratemporal approach with or without ICA trapping, preceded by external carotid artery embolization or superselective embolization. Surgery leads to therapeutic success in about 90% of patients. Treat large type D tumors with a combined otologic and neurosurgical approach. An infratemporal approach with a skull base resection and a posterior fossa exploration are advisable in the attempt to remove the entire tumor.
Postoperative details: Patients usually are in the sixth decade of life; therefore, careful monitoring of cardiac function is advisable, especially if a catecholamine secreting tumor was only partially resected.
Postoperative lower cranial nerve deficits need to be carefully diagnosed, and, when present, early rehabilitation is advocated.
Follow-up care: Radiologic and, when indicated, endocrinologic monitoring for tumor growth or regrowth is indicated every 6 months to 1 year for 2 years and then, depending on the dynamics of the tumor behavior, every 2 years.
2007-05-23 05:50:18
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answer #1
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answered by Dr.Qutub 7
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Hearing problem comes to those who are not good listeners/talkers and who use their discretion power very rarely. Such people have lots of guilt feelings in them and point their fingers at others often of being guilty of having committed something wrong. Once this tendency goes, hearing power will slowly and steadily get restored, there by meaning that the source causing such a disorder, in this case, the tumor will gradually disappear. The only way to get the feeling of not being guilty of having done anything wrong can come by doing meditation for half an hour in the morning and evening daily through the process of self-realization under the guidance of a good spiritual teacher who does not charge anything for teaching the relevant techniques. In just three months of doing such meditation, one can see some positive results in the form of alleviation of the speech disorder.
2016-04-01 04:13:07
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answer #2
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answered by Anonymous
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