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A government sponsored clinic for the evaluation and treatment of chronic hepatitis C in an underinsured population in Puerto Rico.

BACKGROUND: Chronic hepatitis C (CHC) is a major health problem in Puerto Rico (PR). More than 50% of the population is insured by a government-sponsored managed care system that does not cover treatment for CHC. Lack of access to treatment will result in an increase in end-stage liver disease with its high socioeconomic impact in the future. In an attempt to identify strategies for the treatment of CHC in the publicly insured population, the PR Health Department and the University of Puerto Rico (UPR) Gastroenterology (GI) Division have developed a pilot clinic for the evaluation and treatment of CHC. METHODS: UPR and the PR Health Department negotiated a fee per patient to include all medical care and follow-up laboratories. Viral studies were covered by a grant to the Health Department. Medications were bought at a discount price by the government and dispensed at a government pharmacy. The Health Department allocated funds for 200 patients with government insurance. A dedicated clinic was established at the UPR, staffed by an internist under the supervision of the GI faculty. Patients with a positive HCVab were referred to this clinic. The public insurance covered the CBC, liver tests, metabolic panel, TSH, HBsAg, HIV, ultrasound and liver biopsy, which were required prior to evaluation for possible treatment. In the initial visit, patients underwent a medical evaluation, including assessment of suitability for therapy and counseling. Those deemed to be candidates who still needed a liver biopsy had it performed by the GI staff. Genotype and viral titers were ordered after the decision on treatment had been made. The clinic physician prescribed pegylated interferon and ribavirin, which were dispensed by the government pharmacy. Instruction on proper drug administration was given. Clinic visits were scheduled for 1, 3, 6 and 12 months but also allowed on demand. Laboratory tests were done at the clinic and reviewed by the physician expediently to monitor for toxicity. Any medical problems or treatment for complications of therapy were covered by the primary insurer. Viral load was repeated at 12 weeks to discontinue therapy in those unlikely to respond. The budget per patient for medical visits and laboratory tests was dollars 1,500.00, HCV RNA titers plus genotype costs dollars 200.00, and HCV qualitative RNA costs dollars 123.00 RESULTS: 405 patients have been referred between February 2002 and April 2003 (the number was increased at adjust for no-shows and those not treated). 30% are female, the major risk factor is IVDU, and 80% are unemployed. 101 have started treatment and 48 are awaiting biopsy. A support group has been established at the clinic. CONCLUSIONS: The treatment for CHC in practice is not only costly but also resource consuming. Most gastroenterologists in our community refer these patients for treatment. The establishment of a dedicated clinic with a primary physician supervised by the specialists reduces costs and facilitates caring for a larger number of patients. The volume of services allows for negotiation of medical, laboratory and drug costs. In allocating funds for this project, the PR Health Department recognized the importance in reducing the potential spread in the community by treating infected patients as well as reducing the future medical and socioeconomic burden of end-stage liver disease. Although the outcome of this project is still unseen, we believe that this model may serve to establish other clinics for the treatment of CHC at lower costs with the same effectiveness.

Adult↗

Lead, mercury, and cadmium in feathers of tropical terns in Puerto Rico and Australia.

Levels of lead, cadmium, and mercury were examined in breast feathers of terns nesting on offshore islets near Culebra, Puerto Rico and on Michaelmas Cay and Heron Island on the Great Barrier Reef, Australia. Levels of all metals in these tropical terns were predicted to be lower than those of terns nesting in temperate regions, because the tropical species feed offshore of non-industrial areas where contamination should be less than for temperature-nesting species that feed in inshore estuaries near industrialized areas. This prediction was not supported by the evidence. In Puerto Rico, lead and cadmium levels were highest in bridled tern (Sterna anaethetus), and mercury levels were highest in sooty (S. fuscata) and roseate tern (S. dougallii). In Australia, levels of lead and mercury were higher in black noddy (A. minutus) and lower for sooty tern; and cadmium levels were highest for brown noddy (A. stolidus) and sooty tern, and lowest for black noddy. Metal levels for the tropical terns nesting in Puerto Rico and Australia generally were not lower than levels reported for temperate-nesting or mainland nesting birds (except for mercury in Australia).

Animals↗

Seroepidemiology of schistosomiasis in Puerto Rico: evidence for vanishing endemicity.

The current study summarizes our findings of anti-schistosome egg antibody by the circumoval precipitin test for two different populations in Puerto Rico. One group, exclusively males more than 40 years of age and from all municipalities on the island, was from the Veterans Administration Hospital for the period 1988-1997. The second group resided southeast of San Juan, around the municipality of Caguas and adjacent municipalities east of Caguas, was of both sexes and mostly until 1997 of undetermined ages for the period 1993-1997. Results reveal a yearly decrease in testing requests from the Veterans Administration Hospital from 148 in 1988 and 1989 with 16% positive to three in 1996 through 1998 with none positive. This decrease in testing requests was because of a decrease of suspicion of schistosomiasis in this group. The other patient population from the Caguas region showed a gradual but continuous decrease in seropositive individuals from 21% in 1993 to 12% in 1996, with precipitous decrease to 5% in 1997 and only 1% in 1998. Moreover, there were four patients from which at least two serum samples were obtained one or two years apart and tested. In each instance the more recently obtained sample had lower antibody reactions than the first as reflected in lower percentages of positive egg reactors. The fact that they were treated with praziquantel after the first testing also suggests that the infected population was being eliminated through chemotherapy. These combined results suggest the elimination of infections with Schistosoma mansoni in the traditionally high prevalence regions east of San Juan in the absence of any proactive control efforts in Puerto Rico. Because of the rapid urbanizing of Puerto Rico, the one identifiable control effort is economic development and well being.

Adult↗

Longitudinal studies of Aedes aegypti (Diptera: Culicidae) in Thailand and Puerto Rico: population dynamics.

Aspiration collections of adult Aedes aegypti (L.) were made weekly from inside and outside of houses for 3 yr in a rural Thai village (n = 9,637 females and n = 11,988 males) and for 2 yr in a residential section of San Juan, Puerto Rico (n = 5,941 females and n = 6,739 males). In Thailand, temperature and rainfall fell into distinct seasonal categories, but only temperature was correlated with fluctuations in female abundance. Average weekly temperature 6 wk before mosquitoes were collected and minimum weekly temperature during the week of collection provided the highest correlations with female abundance. Accounting for annual variation significantly improved Thai models of temperature and mosquito abundance. In Puerto Rico, temperature, but not rainfall, could be categorized into seasonal patterns. Neither was correlated with changes in female abundance. At both sites the vast majority of females were collected inside houses and most contained a blood meal. Most teneral females were collected outside. Wing length--an indicator of female size--and parity, egg development or engorgement status were not correlated, indicating that feeding success and survival were not influenced by female size. At both sites, females fed almost exclusively on human hosts (> or = 96%), a pattern that did not change seasonally. In Puerto Rico more nonhuman blood meals were detected in mosquitoes collected outside than inside houses; no such difference was detected in Thailand. Gut contents of dissected females indicated that females in the Thai population had a younger age distribution and fed more frequently on blood than did Ae. aegypti in Puerto Rico. Our results indicated that aspects of this species' biology can vary significantly from one location to another and 1 yr to the next.

Aedes↗

Severe community-acquired pneumonia and sepsis caused by Burkholderia pseudomallei associated with flooding in Puerto Rico.

Burkholderia pseudomallei (melioidosis) is usually found in endemic areas of Southeast Asia and Northern Australia. However, a few cases of confirmed melioidosis indigenous to Puerto Rico and the Americas have been reported previously. We describe the occurrence of a B. pseudomallei infection in a female with insulin-dependent diabetes mellitus exposed to flood waters in Puerto Rico. We conclude that B. pseudomallei should be considered a potential pathogen in high-risk patients with severe community-acquired pneumonia and sepsis in Puerto Rico especially in individuals exposed to flood waters during rainy seasons. A more thorough epidemiologic and microbiologic surveillance with environmental sampling may be warranted in the island.

Anti-Bacterial Agents↗

A "class A" institution: the struggle for the University of Puerto Rico School of Medicine.

Although the possibility of developing a medical school in Puerto Rico surfaced periodically between 1900 and 1940, it was not until World War II, when the military draft uncovered the poor conditions of the Puerto Rican population and deprived the island of many physicians, that a doctor shortage was discovered and pressures for the creation of a medical school mounted. University authorities and the A.M.A. conducted separate studies to determine the viability of such a school; both concluded that Puerto Rico could support a medical college, but endorsed only a "Class A" school. There was less of a consensus concerning the benefits and objectives of the school, its location, and the relationship between the proposed institution and the existing School of Tropical Medicine. These issues embroiled a number of academic and political parties in a struggle which lasted five years.

History, 20th Century↗

Health-related quality of life--Puerto Rico, 1996-2000.

Although a number of studies have been made to determine the health-related quality of life (HRQOL) of persons living in the United States, no overall assessment of HRQOL has been conducted previously for residents of Puerto Rico. To determine the HRQOL of adults living in Puerto Rico, during 1996-2000, as part of the Behavioral Risk Factor Surveillance System (BRFSS), interviews were conducted in Spanish with a representative sample of Puerto Rican adults. Older women, persons with less education or lower income, persons unable to work, and those who were overweight or who had diabetes or high blood pressure reported more days for which they were physically or mentally unhealthy during the 30 days preceding the survey. Interventions designed to reach these vulnerable, demographic, socioeconomic, and behavioral risk groups might help adults in Puerto Rico increase their quality and years of healthy life and eliminate health disparities.

Adult↗

[The Diagnostic Interview Schedule in Spanish: its translation and adaptation in Puerto Rico].

The process and results of the Puerto Rico's DIS Spanish translation and adaptation are described in this paper. The process is presented in the context of cross cultural research on psychiatric diagnoses and the translation and adaptation of diagnostic instruments for use across cultural boundaries. Several translation techniques were employed (bilingual committee, back-translation and instrument testing) to obtain an instrument in correct Spanish, comprehensible for most Spanish-speaking people as well as linguistically and culturally adapted to the Puerto Rican population. Its semantic, technical, contents and criterion equivalence with the English DIS were considered. The resulting instrument is not only a translation and adaptation of the original but it also presents some additional features which aim to enhance its diagnostic accuracy. A descriptive and quantitative comparison with the Karno et al's Spanish DIS version is also included as well as a discussion of its possible contribution to DIS transcultural use, specially in Hispanic cultures.

Cross-Cultural Comparison↗

Multi-resistant Aedes aegypti in Puerto Rico and Virgin Islands.

The Isla Verde, Puerto Rico, laboratory colony, highly resistant to DDT and dieldrin in 1959, became even more so by 1960; resistance to organic phosphates was also greater than before. In laboratory tests Bayer 29493 was best for killing resistant larvae and adults. It is improved with piperonyl butoxide at the ratio of 10:1.

Aedes↗

Identification of Mycobacterium avium and Mycobacterium intracellulare isolated in Puerto Rico from clinical samples by the use of a non-radioactive DNA probe.

The Mycobacterium avium complex (MAC), especially M. avium, is an important opportunistic pathogen of AIDS patients in the United States. In Puerto Rico, the incidence of infections caused by MAC has not been determined. This is due, in part, to the difficulties associated to the microbiological identification of the microorganisms. In this work, a commercially available kit (AccuProbe, Gen-Probe, Inc., San Diego, CA) utilizing a DNA probe complementary to rRNA of M. avium and M. intracellulare was used to identify seventeen MAC strains and one unknown atypical mycobacterium recovered in culture in Puerto Rico from clinical samples. The results obtained revealed that M. avium was the predominant species recovered (83% of isolates tested). Only two cultures were identified as M. intracellulare. The unknown culture, which did not react with either probe, turned out to be M. gordonae. The probe tests not only are simple to perform, but provide cultural identification results in as little as two hours. This study, the first one of its kind in Puerto Rico, demonstrates that the nucleic acid probes for the cultural identification of M. avium and M. intracellulare offer the potential of providing a prompt diagnosis and much needed data on the epidemiology of MAC infections in Puerto Rico.

Bone Marrow↗

Cancer incidence in the United States and Puerto Rico.

This study compares cancer incidence in the United States National Survey areas and Puerto Rico for the period of 1969 to 1974. There are several differences between the 2 areas. Puerto Rico has a higher incidence of cancer of the mouth, pharynx, esophagus, stomach, cervix uteri, vulva, and penis. The Survey areas have higher incidences of cancer of the colon, rectum, lung, corpus uteri, female breast, and ovary. The differences between sexes are more or less the same as in other countries.

Alcohol Drinking↗

Anaphylaxis: an analysis of cases evaluated at the Puerto Rico Medical Center over a ten-year period.

OBJECTIVE: To examine the clinical characteristics of patients with anaphylactic reactions evaluated at the Puerto Rico Medical Center over a ten year period. BACKGROUND: Anaphylaxis, an immunologic reaction classically initiated by the combination of an antigen and a mast cell fixed antibody (usually IgE), still carries a fatality rate of 500 to 1000 cases per year in the United States. It constitutes a medical emergency that needs to be identified promptly in order to install appropriate treatment. No studies of this condition have been conducted in Puerto Rico, specifically to assess the clinical presentation, main causes and outcome. METHODS: Eighty-three records of patients with a diagnosis of anaphylaxis were screened by retrospective and concurrent analysis. Of these, only 51 fulfilled the diagnostic criteria of anaphylaxis. Specific data gathered from those records assessed the clinical characteristics of each case, precipitating factors, severity of the reaction and outcome. A standard form was used for data gathering. A grading system was utilized to classify the severity of the clinical episodes. RESULTS: Cutaneous features were the most commonly found manifestations of anaphylactic reactions in the studied group. Only reactions graded 2 and 3 were identified. Reactions to medications were the most frequent identifiable causes of the entity. Multiple sensitivities to different allergens were not predictive of this clinical condition. CONCLUSIONS: The identification in this study that only cases with the more severe grades of anaphylaxis were evaluated and treated at our center, the inability to recognize an inciting cause in about one third of the patient sample and the fact that a minority of the treated patients received subsequent follow-up by an allergist, reflect the need to promote the training of physicians in the field of allergy in Puerto Rico and the continued education of all physicians in the Island regarding this clinical disorder.

Adolescent↗

A comparison of the antimicrobial resistance patterns of gram-negative bacilli isolated from community-private and university-affiliated hospitals from Puerto Rico.

Few studies have been performed in Puerto Rico concerning the antimicrobial resistance pattern of clinically significant Gram-negative bacilli. The antimicrobial resistance patterns of 5,590 Gram-negative bacteria obtained from three Community-Private Hospitals (CPH) and three University-Affiliated Hospitals (UAH) were evaluated utilizing the institutions' antimicrobial susceptibility reports for the year 2000. The objectives of this study were: to retrospectively evaluate the reported in vitro resistance of clinical isolates of E. coli, K. pneumoniae, E. cloacae, S. marcescens, P. aeruginosa and A. baumannii to selected standard antibiotics and to compare the antimicrobial resistance patterns between Community-Private (CPH) and University Affiliated hospitals (UAH). E. coli was the most common Gram-negative enteric bacilli in both CPH and UAH. In UAH, E. coli demonstrated a statistically significant higher resistance to the selected beta lactams and amikacin antibiotics but not to ciprofloxacin or gentamicin. For K. pneumoniae, the antimicrobial resistant pattern showed that UAH isolates were significantly more resistant to the tested antibiotics with the exception of ceftriaxone. In CPH, E. cloacae isolates were significantly more resistant to piperacillin-tazobactam, ciprofloxacin and gentamicin, while in UAH this organism was more resistant to amikacin. In UAH, S. marcescens isolates demonstrated a statistically significant higher resistance to all tested antibiotics with the exception of imipenem, which was similar in both hospitals group. Pseudomonas aeruginosa demonstrated a statistically significant higher resistance in UAH to all selected antibiotics with the exception of ciprofloxacin and gentamicin, which was similar in both hospitals group. Acinetobacter baumannii was the most resistant organisms in both hospitals group. UAH isolates were significantly more resistant than CPH isolates for all tested antibiotics. When compare with other large-scale antimicrobial resistance studies, the present study results suggest an apparent higher resistance in the Puerto Rican isolates. The high numbers of antimicrobial resistant Gram-negative bacilli in our study strongly suggest multiple mechanisms of antimicrobial resistance including the presence of extended spectrum and chromosomally derepressed beta-lactamases.

Cross Infection↗

Homicides among children and young adults--Puerto Rico, 1999-2003.

Interpersonal violence causes substantial morbidity and mortality worldwide and poses a considerable economic burden, equivalent to 4%-5% of the gross national product in certain countries. The Commonwealth of Puerto Rico is a U.S. territory with a 2004 population of approximately 3.9 million. In Puerto Rico, homicides were the 12th leading cause of death overall in 2003, ranking fifth among males and 15th among females. This report summarizes an analysis of death certificate data on violent deaths of children and young adults in Puerto Rico during 1999-2003, which determined that 93% of homicide victims aged <30 years were young males, the most common method of homicide was assault by firearm discharge, and the rate of homicide among males aged 25-29 years increased during the period. To address this problem, the Puerto Rican government has initiated a comprehensive strategy that includes enhancing an integrated surveillance system for fatal and nonfatal assault, supporting research on interpersonal violence, and establishing local prevention programs (e.g., violence prevention curricula in selected schools).

Adolescent↗

Deaths associated with Hurricane Georges--Puerto Rico, September 1998.

On the evening of September 21, 1998, Hurricane Georges struck Puerto Rico with estimated maximum winds of 115 mph (Category 3). It made multiple landfalls throughout the Caribbean, including Antigua, the U.S. Virgin Islands, Hispaniola, and Cuba. On September 25, Hurricane Georges struck the U.S. mainland near Key West, Florida, and made final landfall on September 27 in Biloxi, Mississippi, as a Category 2 hurricane. This report presents preliminary data about deaths resulting from the hurricane in Puerto Rico.

Adult↗

The use of the Puerto Rican Biculturality Scale with Puerto Rican drug users in New York and Puerto Rico.

This study examines the psychometric properties of an acculturation scale specifically developed for Puerto Ricans with a sample of substance abusers residing in Puerto Rico and New York. In line with current conceptual models of acculturation, this instrument departs from a mutually exclusive or zero-sum conceptualization of acculturation by assessing involvement in both American and Puerto Rican cultures independently of each other. Findings from this study permitted comparisons of acculturation as experienced by Puerto Rican injection drug users in Puerto Rico and New York. Results supported the notion of independence of individuals' involvement in American and Puerto Rican cultures, thus confirming the complex nature of biculturalism. This article also examines the relevance of the study of acculturation scales that can assist in identifying the influences of the cultures of origin and destination on substance abuse and HIV risk behaviors.

Adult↗

Biomass and community structure of the abyssal microbiota determined from the ester-linked phospholipids recovered from Venezuela Basin and Puerto Rico Trench sediments.

Extractible phospholipid fatty acids of abyssal sediment cores from three stations in the Venezuela Basin, transects between them, and a station in the Puerto Rico Trench were analyzed to determine microbial biomass and community composition. Results were compared to abyssal sediments from an area of high-energy boundary currents in the North Atlantic, and estuarine sediments from Apalachee Bay, Florida. Venezuela Basin and Puerto Rico Trench sediments were characterize by low microbial biomass, measured as phospholipid palmitic acid. Venezuela Basin sediments of three different sedimentary regimes showed a remarkably similar microbial community structure, as characterized by fatty acid profiles. Prokaryotic organisms dominated the microbial community, and fatty acids believed to be signatures of anaerobic organisms were present in greater proportions in Venezuela Basin and Puerto Rico Trench sediments than in either the North Atlantic abyssal sediments or shallow-water estuarine sediments.

Biomass↗

Puerto Rico orthopaedic manpower study.

Data regarding orthopaedic work-force is presented. Data is based on information obtained from the Puerto Rico Board of Medical Examiners, the Puerto Rico Department of Health and orthopaedic surgeon's practice. The purpose of this study is to compare the local orthopaedic manpower with the American Academy of Orthopaedic Surgeons most recent national manpower survey and to provide a database of the local orthopaedic work-force.

Adult↗