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Biomedical subjects

A Hamid

Publications and source records attributed to A Hamid.

41 records · Page 3Linked to original sources

The developmental cycle of a drug epidemic: the cocaine smoking epidemic of 1981-1991.

Although Americans have experienced many drug epidemics, the majority of which have ended within ten years of onset, they nevertheless believed that the use of smokable cocaine, which took the popular form of crack cocaine in 1984, would grow exponentially throughout the 1990s unless it was vigorously combated. However, in 1991 it appears that crack use is in decline even in the inner-city neighborhoods where it had been most entrenched, and that the decline is due more to natural controls than to the War on Drugs. The cyclical nature of drug epidemics, as well as their progression through regular stages, was again affirmed. The cocaine-smoking epidemic of 1981-1991 (which included crack) afforded the opportunity to research it in its entirety. In this article, the advantages of recognizing the developmental cycles of drug epidemics are outlined, the most important of which concerns the future. In the terminal stage of the developmental cycle of a drug epidemic, remaining abusers play a pivotal role. If humanely treated, they may serve as deterrents to future drug use: frustrated in current drug use, however, yet insensitively treated by the wider society, they may author the next epidemic.

Adolescent↗

The heroin epidemic in New York City: current status and prognoses.

Since 1989, heroin production worldwide has risen; in New York City, as its purity rose and prices fell, street-level markets were restructured and offered heroin in addition to cocaine and crack (which had been popular during the 1980s). While officials estimate that there are between 500,000 and one million hard-core, chronic heroin users nationwide, evidence of supplemental users heralding another heroin era includes: more overdoses and overdose deaths, greater demand for treatment, larger seizures of heroin at all levels of distribution and related arrests, and broader media coverage. In this article, the authors describe the characteristics of populations in which there may have been a percentage increase of new users, such as young middle- or upper-class European-Americans, young Puerto Ricans and recent Haitian and Russian immigrants. The abstinence of young African-Americans is also noted. The article ends with a preliminary needs assessment of the new users in the areas of health (including AIDS), housing, employment, treatment, arrest and imprisonment.

Administration, Inhalation↗

Spontaneous choledocoduodenal fistula--due to chronic duodenal ulcer.

A case of spontaneous choledocoduodenal fistula due to penetrating posterior duodenal ulcer is reported. The only presenting symptoms were pain and vomiting. There was no fever or recurrent jaundice which is usually expected in such a condition. The radiological findings included barium and air in the biliary tract. Biliary fistula are not uncommon. Although external biliary fistulae are seldom seen in present times, internal biliary fistulae are not a rare entity. Internal biliary fistulae are either spontaneous or due to operations on biliary tract. The common causes for spontaneous internal biliary fistula includes cholelithiasis, peptic ulceration and malignant neoplasm (Shiu) 1967. In a study of 819 cases by Waggoner and Le Mone (1949) 51% of such fistulae were cholecystoduodenal, 21% cholecystocolic, 19% choledocoduodenal, while the rest were choledocogastric and cholecystocholedocal. Most common cause for spontaneous choledocoduodenal fistula is due to gall stones, but, rarely posterior penetrating duodenal ulcer may also cause this condition. The following report concerns a spontaneous biliary fistula of the choledocoduodenal type, due to chronic duodenal ulcer.

Biliary Fistula↗