Acta anaesthesiologica Scandinavica. Supplementum
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Acta Anaesthesiol Scand Suppl · Jan 1987
Intraventricular morphine for intractable cancer pain: rationale, methods, clinical results.
The experience with the administration of intraventricular morphine for the control of malignant pain in 197 patients is analyzed. Small doses of morphine injected via a ventricular reservoir provided satisfactory control of otherwise intractable pain in terminal cancer-patients. ⋯ Chronic intraventricular therapy can be safely performed on an outpatient basis by injecting the opiate once or twice a day. The method may be improved by using refillable continuous-infusion devices and new drugs, able to retain the analgesic effects of morphine while eliminating the unwanted ones.
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Acta Anaesthesiol Scand Suppl · Jan 1987
Review Historical ArticleIntraspinal analgesia: an historical overview.
The application of opioids in the proximity of the spinal cord is a recent addition to the forms of treatment available for pain relief. During the last 20 years we have learned more about the intimate mechanisms of the action of opiates then we had in the preceding 5 millennia. Opium, in fact, has been used for medical purposes from prehistoric times. On the basis of the newly acquired knowledge, we are now applying opioids in more effective ways and providing more patients with long overdue relief of their pain.
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Acta Anaesthesiol Scand Suppl · Jan 1987
Intrathecal therapy: rationale, technique, clinical results.
In 35 patients a subcutaneously implanted injection port/reservoir was used to provide intrathecal morphine to relieve pain due to cancer. The reservoir offers an alternative to rather expensive devices. It can be used for repeated injections or for infusion. ⋯ Initially, doses of 0.25-0.5 mg of morphine resulted in pain relief for 14 to 24 hours. After 5 weeks of treatment morphine requirements increased to 0.75-2 mg. Side-effects were minimal, and three delayed CSF fistula, two of them confirmed by isotope tracking with Tc99m, closed spontaneously.
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Although the scientific study of pain in the modern sense was initiated 150 years ago, and a number of theories were subsequently proposed, until two decades ago pain research remained conceptually stagnant and the meager amount done was not commensurate with the magnitude and clinical importance of pain. Consequently, pain treatment remained somewhat empirical and ineffective. ⋯ Fortunately, during the past 20 years significant advances have been made in our knowledge of basic mechanisms of acute pain and about some chronic pain syndromes, and a variety of new therapeutic modalities have been introduced and old ones have been refined. Among the most important advances of the past decade have been the discovery of opiate receptors, the extensive pharmacokinetic and pharmacodynamic studies of narcotics, the development of very sensitive analytic techniques and mathematic knowledge and many other advances which have prompted the development of new drugs, novel drug preparations and novel methods of administration, of which intraspinal narcotic therapy is the most important and widely used.
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This study presents a review of 961 patients treated in the general intensive care unit (ICU) of Akershus Central Hospital (ACH) from 1978 to 1981, including also a follow-up study of the 419 patients treated in 1978 and 1979 who were observed for an average period of 20 months after admittance to the ICU. The ICU patients represented 1.7% of all the patients admitted to the referring departments. Approximately 2/3 (67.3%) of the patients were surgical patients, representing 2.9% of the patients treated in that department, 19.6% were medical patients, and 8.6% came from the department of pediatrics. ⋯ Improvement by intensive care was achieved in 81.4% of the patients, 5.2% were unchanged, and 13.4% died while in the ICU. Mortality was 9.5% below and 19.3% above the age of 60 years. Of the 419 patients who were followed for an average period of 20 months after admittance to the ICU, 56 died in the ICU, 28 died later during the same stay in ACH, and another 47 died after discharge from ACH, whereas 288 (68.7%) were still alive.(ABSTRACT TRUNCATED AT 400 WORDS)