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At least 847 records · Page 47Linked to original sources
PubMed1988

The influence of unruptured intracranial aneurysms on life expectancy in relation to their size at the time of detection and to age.

A theoretical evaluation of the lifetime probabilities of different outcomes in patients with unruptured intracranial aneurysms (UA) has been made using a life table method. The calculations were performed for aneurysm presenting ages from 20 to 70 years of age for men and women assuming an annual risk of aneurysm rupture of 1%, 2% and 3% and a rate of mortality after rupture of 50%. At 10, 20, 30, 40, 50 and 60 years after the diagnosis of an UA the probability of survival without bleeding is reduced below the expected probability of survival according to the life tables by the following percentages (assuming an annual risk of bleeding of 2%): 19%, 34%, 46%, 56%, 64% and 72%, respectively. A survey of the lifetime probabilities of four different outcomes for patients with an UA indicates a substantial reduction in life expectancy after the diagnosis of an UA. In most ages the surgical risks are more than balanced by the risks associated with an untreated unruptured aneurysm.

Adult↗
PubMed1999

High dose morphine use in the hospice setting. A database survey of patient characteristics and effect on life expectancy.

BACKGROUND: Pain control is one of the most important goals of end-of-life care, and the use of opioids for this purpose is extremely common in hospice settings. However, it is unknown how many of the patients require high dose morphine (HDM, >299 mg/day of oral morphine equivalent), what the characteristics of these patients are, and whether the use of HDM might affect their survival. METHODS: The authors retrospectively studied the medical records of all 651 inpatients hospitalized at their center between January 1996 and December 1997. Information was collected regarding demographic parameters, medical diagnosis, pain mechanism, morphine dosage, use of rescue doses in addition to regular doses, use of coanalgesics and adjuvant treatments, and survival time in the hospice setting as associated with morphine dosage. RESULTS: The authors identified 453 patients (69.58%) who received morphine for pain relief, of whom 55 (12.14%) needed more than 299 mg/day. Morphine dosage was negatively associated with age (r = -0.35, P = 0.01). Male patients and nonwhite patients required slightly higher dosages than others. Primary breast and genitourinary cancers, as well as metastases to bone and spinal diseases, were associated with higher morphine dosages. Statistical analysis indicated a positive correlation between the log maximum of morphine dosage and the total number of rescue dosages (r = 0.307, P = 0.025). The median survival of patients on HDM was 15.6 days and did not differ from the survival of patients taking a lower dosage. CONCLUSIONS: A fairly strong correlation exists between morphine dosage and some clinicodemographic data. No significant dose-limiting adverse effects were observed, suggesting a high clinical safety profile. High morphine dosage does not affect patient survival. Awareness of the dosage factors will improve our ability to treat and predict probable HDM dosage, thus shortening the period until pain relief is reached.

Aged↗
PubMed1987

Increase in life expectancy for mice fed diethylhydroxylamine (DEHA).

ICR Swiss strain mice were fed diethylhydroxylamine (DEHA) for life starting at 44 days of age at 10, 30, 100, and 300 mg/kg-day. The 10 and 30 mg/kg-day males and the 10 mg/kg-day females showed an increase in mean age of death of 76 (12.7%), 45 (7.5%), and 51 (7.4%) days, respectively, compared to controls. The respective confidence levels are 99.2, 90.0, and 92.9% that these results are significant by Student's t test.

Animals↗