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Biomedical subjects

L Saita

Publications and source records attributed to L Saita.

At least 19 recordsLinked to original sources
PubMed1999

Visual disturbances in advanced cancer patients: clinical observations.

Visual disturbances in advanced cancer patients are very rarely signaled, evaluated, or adequately treated. The main causes of sight disturbances are primary eye tumors, ocular metastases, and some paraneoplastic syndromes. Sight alteration can also be associated with asthenia, fatigue, anemia, and hypovitaminosis. These symptoms can be monocular or binocular, and their gravity and evolution can vary. Based on a survey of 156 patients, we estimate the prevalence of visual disturbances to be 12% in advanced cancer patients.

Humans↗
PubMed1995

Rectal methadone in cancer patients with pain. A preliminary clinical and pharmacokinetic study.

BACKGROUND: Cancer pain can be treated in most cases with oral analgesics. However, during their clinical history, 53% to 70% of patients will need alternative routes of opioid administration. The rectal administration of opioids is a simple alternative route for many patients. There are no data in the literature regarding the pharmacodynamics and pharmacokinetics of rectal methadone. PATIENTS AND METHODS: We evaluated the analgesia, tolerability and absorption profile of methadone hydrochloride in six opioid-naive cancer patients with pain. A blood sample was collected before administration of a single dose of drug (10 mg) and then again after fixed times. At these fixed times the patients were asked about pain, nausea and drowsiness by means of a visual analogue scale of 0-100 mm (VAS). RESULTS: Pain relief was statistically significant as early as 30 minutes and up to eight hours after methadone administration. None of the patients reported significant side effects. The pharmacokinetics of rectal methadone showed rapid and extensive distribution phases followed by a slow elimination phase. CONCLUSIONS: Rectal methadone can be considered an effective analgesic therapy for patients with cancer pain for whom oral and/or parenteral opioids are not indicated or available.

Administration, Rectal↗
PubMed1995

Role of rectal route in treating cancer pain: a randomized crossover clinical trial of oral versus rectal morphine administration in opioid-naive cancer patients with pain.

PURPOSE: The aim of this double-blind, double-dummy, crossover study was to compare the efficacy, tolerability, and time of onset of analgesia after the administration of 10 mg of morphine hydrochloride via the oral and rectal routes in opioid-naive cancer patients with pain. PATIENTS AND METHODS: Thirty-four patients with cancer pain and no previous opioid treatment were randomized to receive morphine hydrochloride 10 mg orally or rectally (in the form of a microenema) for 2 days. During days 3 and 4, a crossover took place. The scores of pain, nausea, and sedation (visual analog scale of 0 to 100) calculated as the percentage change from baseline (before opioid administration) were assessed at different intervals up to 240 minutes. The number of vomiting episodes was recorded. Parity tests and analysis of variance (ANOVA) were performed to compare the two administration routes. RESULTS: A significant difference in pain intensity was achieved 10 minutes after rectal administration compared with 60 minutes after oral administration. There was still a significant reduction in pain via the rectal route after 180 minutes versus via the oral route after 120 minutes. No significant difference was observed in the intensity of sedation, nausea, or number of vomiting episodes between the oral and rectal routes. CONCLUSION: A liquid solution of morphine is well absorbed via the rectal route. Rectal morphine is safe, effective, easy to manage, and inexpensive, with a rapid onset of action. Rectal morphine can be considered a valid alternative route for opioid administration and may also be used when rescue doses of morphine are required in patients regularly treated with oral or parenteral opioids.

Administration, Oral↗
PubMed1994

Subcutaneous octreotide in the treatment of pain in advanced cancer patients.

Octreotide is a synthetic somatostatin analogue that has been recently tested by various routes of administration as an analgesic drug for different types of pain. The authors evaluated the analgesic efficacy of a subcutaneous 200-ng bolus of octreotide on somatic and visceral pain from advanced cancer in a randomized, single-blind crossover study. The results in nine cases did not show an analgesic effect superior to that of a placebo. Pain relief was obtained in one case of postprandial visceral pain. This case is discussed in detail, and another possible clinical use for octreotide in a particular form of neoplastic pain is hypothesized.

Analgesia↗
PubMed1994

Tolerability of ketorolac administered via continuous subcutaneous infusion for cancer pain: a preliminary report.

We evaluated the local and systemic tolerability of ketorolac administered through continuous subcutaneous infusion in ten cancer patients. The patients were monitored daily for the severity and duration of pain, and the development of other symptoms. The duration of injection site varied from 1 to more than 7 days. No patients complained of local discomfort or pain. Mild local bleeding at the site of drug injection was observed in seven cases. No increase in the intensity of symptoms was observed during the infusion of ketorolac.

Adult↗
PubMed1991

Skin problems in advanced and terminal cancer patients.

Disturbances caused by skin problems may compromise the quality of life of cancer patients. The main complications affecting the skin comprise the dermatologic toxicity of anticancer therapy, bedsores, malignant ulcers, sores due to nonmetastatic cancer, pruritus, and infections. Most of the information available about these entities has been acquired in the cancer patient without advanced disease. The little currently known about the epidemiology and physiopathology of such lesions in the advanced phase of cancer is presented, and approaches to management are suggested.

Humans↗
PubMed1989

Clinical observations on controlled-release morphine in cancer pain.

The authors report the data from two studies on the use of controlled-release morphine sulphate tablets for cancer pain relief. This preparation allows just two administrations per day, in comparison with immediate release oral aqueous morphine solution. The first study, a randomized trial carried out on 70 patients suffering from advanced cancer pain, evaluated the analgesic efficacy and side effects of this drug. The second, an open study of 113 patients, assessed analgesic efficacy, incidence of side effects, and the effects of age on dose. The analgesia provided by controlled-release morphine administration proved to be superimposable to those of the oral aqueous morphine solution. Moreover, the use of controlled-release morphine was associated with a statistically significant reduction of some side effects. Ninety-one percent of patients needed controlled-release morphine every 12 hr, while 9% required it every 8 hr.

Adolescent↗
PubMed1988

Trazodone for deafferentation pain. Comparison with amitriptyline.

We report a clinical multicentre experience with antidepressant agents (trazodone and amitriptyline) in the treatment of chronic pain due to deafferentation. Forty five patients were admitted to the study; most of them with oncological peripheral nerve lesions. Almost all of them were already being treated with NSAID in association with weak or strong opioids. A random double blind study was performed: 23 patients were treated with trazodone, 22 with amitriptyline. In the assessment of results, pain intensity, hours of sleep, hours standing and lying, side effects, mood, anxiety and weakness were all taken into consideration. The therapeutic analgesic efficacy of the two drugs proved to be similar.

Adult↗
PubMed1987

Antidepressants for cancer pain and other painful syndromes with deafferentation component: comparison of amitriptyline and trazodone.

The Authors report a clinical multicentre experience with antidepressant agents (trazodone and amitriptyline) in the treatment of chronic cancer pain with deafferentation component. Forty-five patients were admitted to the study: 27 with oncological peripheral nerve lesions, 6 with post herpetic neuralgias, 10 with not oncological nerve lesions, 2 with central nervous lesions. Almost all of them were already being treated with NSAID associated with weak or strong opioids. A random double blind study was performed: 23 patients were treated with trazodone, 22 with amitriptyline. In the assessment of results, pain intensity, hours of sleep, hours standing and lying, side effects, mood, anxiety, weakness were all taken into consideration. The therapeutic analgesic efficacy of the two drugs proved to be similar.

Adult↗
PubMed1985

WHO guidelines for the use of analgesics in cancer pain.

The growing incidence of cancer pathology all over the world implies not only problems of prevention and cure, but also of pain control. Pain appears in more than 50% of cancer patients, mainly because analgesic opioids are not available or adequately administered. For this reason, the World Health Organization (WHO) has created a Collaborating Centre for Cancer Pain Relief at the Division of Pain Therapy of the National Cancer Institute, Milan. Experts in pain therapy have drafted guidelines on the sequential use of analgesic drugs by identifying three steps: non-narcotics, weak narcotics, narcotics, all in association with adjuvant drugs. After a positive pilot trial, field testing will be conducted in developed and developing countries. The first step of the analgesic ladder is represented by the use of non-narcotics; the adequate use of these substances in advanced cancer patients does not exceed 6 months of treatment. Treatment is then either discontinued or changed to a following step because of side-effects (40%) or inefficacy (44%). The reduction in the use of non-narcotics corresponds to a successive increase in the use of opioids, particularly direct agonists. Through an adequate use of the analgesic ladder, pain can be relieved in the great majority of cancer patients.

Analgesics↗