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Biomedical subjects

Mario Cruz

Publications and source records attributed to Mario Cruz.

9 recordsLinked to original sources
PubMed2006

Active medical conditions among patients on an assertive community treatment team.

The purpose of this cross-sectional study was to examine the number and type of active medical conditions among psychiatric patients treated by an assertive community treatment (ACT) team in an urban setting. Psychiatric hospitalization admission and discharge summaries of 70 patients were reviewed, and case managers on the treatment team were interviewed. Patients had a median of three active medical conditions. Osteoarthritis, hypertension, viral Hepatitis C infection, gastroesophageal reflux disease (GERD), and reactive airway disease were the most common active medical illnesses. The majority of patients were cigarette smokers and were diagnosed with alcohol or illicit substance use disorders, which were associated with viral hepatitis C infection and reactive airway disease in this patient population.

Adult↗
PubMed2006

Incentive payments for attendance at appointments for depression among low-income African Americans.

OBJECTIVE: The purpose of this study was to evaluate the effect of nominal incentive payments on attendance at therapy appointments among 50 low-income African Americans with depression. METHODS: Attendance at therapy appointments for depression without incentive was tracked for 12 weeks, followed by tracking of 12 weeks during which $10 payments were given at regular appointments and a third 12-week period of appointments without payments. RESULTS: After adjustment for rescheduling, 54 percent of patients had better adherence when payments were attached to appointments, and an additional 14 percent continued with perfect attendance throughout this second period. In the third period, when payments were no longer made, 66 percent had a decline in adherence. Less rescheduling was also observed during the incentive period. CONCLUSION: Incentive payments have the potential to improve appointment adherence among low-income African Americans with depression.

Black or African American↗
PubMed2005

A review of the first five years of the University of Arizona telepsychiatry programme.

We performed a retrospective review of the first five years of activity in the University of Arizona Telepsychiatry Programme. The programme began in 1998 as part of a telemedicine service for underserved rural areas. Over the first five years, 1086 teleconsultations were carried out for a total of 206 patients. There were 159 adult (77%) and 47 paediatric patients (23%). During the study period, the racial/ethnic diversity of the paediatric patients increased, as did the number of follow-up visits for adult patients (average 5.3/patient). These trends suggested that telepsychiatry became an integral part of the mental health service system at the six referring sites. Adult patients completed 81 satisfaction surveys (51%) and psychiatrists completed 47 (23%). The responses showed that providers and patients found telepsychiatry services satisfactory, although in a minority of teleconsultations (18% for providers and 17% for patients) equipment problems were distracting. The continued use of the services suggests that the telepsychiatry programme fills a service gap in rural areas of the state.

Adolescent↗
PubMed2004

Coliform concentration reduction and related performance evaluation of a down-flow anaerobic fixed bed reactor treating low-strength saline wastewater.

Low-strength saline wastewater may be generated by tourist facilities, industries and communities located in coastal areas. Sea salts, mostly chlorides, when present in wastewaters at high concentrations, can cause inhibition on biological treatment processes. In this study, a laboratory down-flow anaerobic fixed bed reactor (DFAFBR) was used for treating saline wastewater. This wastewater was simulated by dilution of piggery manure in a synthetic saline water to obtain a final total COD concentration in the range of 1100-2900 mg/l and a salt concentration of 15 g/l. The DFAFBR was operated at hydraulic retention times (HRT) of 96, 48, 24 and 12 h. The results showed that at sea salts concentrations in the range from 5 to 15 g/l, total coliform concentration reduction efficiencies higher than 97% were achieved. A decrease in the total and faecal coliform concentration reduction efficiencies from 99.5% to 90.5% and 92.5%, respectively, was observed when the HRT decreased from 96 to 12 h. Enumeration of coliform bacteria isolated from the biofilm in different zones of the reactor showed that more than 94% of the total amount was removed in the upper zone. A HRT of 24 h was required to obtain total COD, organic-N, total-P and faecal coliform concentration reduction efficiencies higher than 72%, 51%, 39% and 98%, respectively. A concentration of 8.4 g/l for chlorides, 1.25 g/l for sulphates and 4.6 g/l for sodium did not affect the process performance.

Bacteria, Anaerobic↗
PubMed2004

Use of American Sign Language in telepsychiatry consultation.

The aim of this study was to provide a psychiatric consultation to a deaf patient in a rural community via telemedicine. The patient successfully communicated with the telepsychiatrist via an American Sign Language (ASL) interpreter and her psychiatric symptoms improved. This case study demonstrated the feasibility of delivering specialty medical services to a special needs population via telemedicine.

Adult↗
PubMed2004

Effect of camera resolution and bandwidth on facial affect recognition.

This preliminary study explored the effect of camera resolution and bandwidth on facial affect recognition, an important process and clinical variable in mental health service delivery. Sixty medical students and mental health-care professionals were recruited and randomized to four different combinations of commonly used teleconferencing camera resolutions and bandwidths: (1) one chip charged coupling device (CCD) camera, commonly used for VHSgrade taping and in teleconferencing systems costing less than $4,000 with a resolution of 280 lines, and 128 kilobytes per second bandwidth (kbps); (2) VHS and 768 kbps; (3) three-chip CCD camera, commonly used for Betacam (Beta) grade taping and in teleconferencing systems costing more than $4,000 with a resolution of 480 lines, and 128 kbps; and (4) Betacam and 768 kbps. The subjects were asked to identify four facial affects dynamically presented on videotape by an actor and actress presented via a video monitor at 30 frames per second. Two-way analysis of variance (ANOVA) revealed a significant interaction effect for camera resolution and bandwidth (p = 0.02) and a significant main effect for camera resolution (p = 0.006), but no main effect for bandwidth was detected. Post hoc testing of interaction means, using the Tukey Honestly Significant Difference (HSD) test and the critical difference (CD) at the 0.05 alpha level = 1.71, revealed subjects in the VHS/768 kbps (M = 7.133) and VHS/128 kbps (M = 6.533) were significantly better at recognizing the displayed facial affects than those in the Betacam/768 kbps (M = 4.733) or Betacam/128 kbps (M = 6.333) conditions. Camera resolution and bandwidth combinations differ in their capacity to influence facial affect recognition. For service providers, this study's results support the use of VHS cameras with either 768 kbps or 128 kbps bandwidths for facial affect recognition compared to Betacam cameras. The authors argue that the results of this study are a consequence of the VHS camera resolution/bandwidth combinations' ability to improve signal detection (i.e., facial affect recognition) by subjects in comparison to Betacam camera resolution/bandwidth combinations.

Adult↗
PubMed2002

Research on the influence that communication in psychiatric encounters has on treatment.

OBJECTIVE: The purpose of this article is to inform mental health professionals about the empirical literature on medical and psychiatric encounters and the influence of communicative behaviors on specific encounter outputs and treatment outcomes. METHODS: A comprehensive review of the health communications literature from 1950 to 2001, using MEDLINE and PsycINFO, was conducted to identify relevant articles on the communication skills of psychiatrists and other physicians. These searches were augmented by personal correspondence with experts on changes in practice patterns in psychiatry and on medical and psychiatric communications research. A review of references within each article and information from the experts identified other relevant articles. Selection was then narrowed to include reports of studies that used structured written instruments that captured relevant physician and patient perceptions of the physician-patient relationship, content analysis of audio- or videotapes of communication in medical or psychiatric encounters, or interaction analysis systems used to categorize audio- or videotaped communicative behaviors in medical or psychiatric encounters. RESULTS AND CONCLUSIONS: Twenty-five articles in medicine and 34 articles in psychiatry were selected. Medical communication researchers have observed associations between physicians' communicative skills and patients' satisfaction, patients' adherence to treatment recommendations, treatment outputs, and patients' willingness to file malpractice claims. The research has also shown that primary care physicians can be more responsive to patients' concerns without lengthening visits. In psychiatry, the literature can be organized into four discrete categories of research: negotiated treatment and the customer approach, therapeutic alliance, Gottschalk-Gleser content analysis of patients' speech, and content analysis of psychiatric interviews.

Antidepressive Agents↗