Fatal systemic arterial air embolism following lung needle aspiration

Fatal systemic arterial air embolism occurred as a complication of percutaneous fine-needle aspiration of the lung, immediately following cytologic sampling of a vasculitic lesion of Wegener granulomatosis. This complication is extremely rare, and it may have been caused by the biopsy of abnormal veins, in which transmural inflammation prevented the normal vasoconstrictive responses to injury.     

Outcomes in work-related injuries: a comparison of older and younger workers

BACKGROUND: The "graying of the workforce" has generated concerns about the physical capacity of older workers to maintain their health and productivity on the job, especially after an injury occurs. There is little detailed research on age-related differences in work outcomes after an occupational injury. METHODS: A self-report survey about occupational, health, and financial outcomes, and related factors was administered 2-8 weeks post-injury to workers aged < 55 and > or = 55 who had lost time due to a work injury. RESULTS: Despite more severe injuries in older workers, most outcomes were similar in both age groups. In multivariate models, age was unrelated or inversely related to poor outcomes. Injury severity, physical functioning, and problems upon return to work were associated with adverse work injury outcomes. CONCLUSIONS: Older workers appear to fare better than younger workers after a work injury; their relative advantage may be primarily due to longer workplace attachment and the healthy worker effect.     

Early retirement due to occupational injury: Who is at risk?

BACKGROUND: As the workforce is rapidly ageing, research on the consequences of occupational injuries in older workers is becoming more important. One adverse outcome unique to older workers, early retirement, has significant negative social and economic consequences for workers and employers. Although linked to poor worker health, the roles of workplace factors and occupational injury have not been well-defined. METHOD: Changes in retirement plans attributed to an occupational injury were studied in a population-based sample of 1,449 New Hampshire workers aged 相似文献   

Asymptomatic total hip prosthesis: natural history determined using Tc- 99m MDP bone scans

A prospective study was performed with 97 patients who had undergone total hip replacement surgery and who were not experiencing pain or other symptoms or problems. The study was intended to determine the normal postoperative appearance of radionuclide scans of the hip following administration of technetium-99m methylene diphosphonate. Five areas of the prostheses were evaluated. Results showed that 6 months after implantation activity around the lesser trochanter and prosthesis shaft became insignificant. Activity around the acetabulum, greater trochanter, and prosthesis tip stabilized approximately 2 years after surgery; approximately 10% of patients in the study had persistent activity in these areas. Familiarity with this normal progression is fundamental to interpretation of postoperative bone scans in patients with total hip prosthesis.     

The effect of abstinence on cigarette consumption upon the resumption of smoking

To study the impact of abstinence on the number of cigarettes smoked per day upon the resumption of smoking, adult current smokers completed retrospective surveys in two studies. The consumption rate demonstrated at the resumption of smoking fell with progressively longer abstinence periods out to 6 months, showing little further reduction even after years of abstinence. Subjects in Study 1 (n=848) resumed smoking at 34% of their lifetime peak rate of consumption, accelerating to 58% at 2 weeks, to 64% at 1 month, and to 68% at 6 months. Subjects in Study 2 (n=803) resumed smoking at 48% of their pre-quit peak rate of consumption, accelerating to 69% at 1 week, to 78% at 2 weeks, and to 88% at 6 months. The trajectory of consumption with the resumption of smoking differs from that in novice smokers, suggesting that some impact of nicotine persists during abstinence. The shapes of the observed trajectories suggest that more than one process may be at work. Prospective studies are needed to confirm these findings.