Reduction of snoring with a plasma-mediated radiofrequency-based ablation (Coblation) device.

We evaluated the effectiveness of using a plasma-mediated radiofrequency-based ablation (Coblation) device to perform volumetric tissue reduction of the soft palate as a means of controlling snoring in 23 patients with loud snoring and mild or no sleep apnea. Tissue reduction was achieved by performing a channeling procedure designed to shrink the tissue surrounding the treatment zone. The soft palate was treated at three separate sites, and each channel was completed in approximately 11 seconds. Data regarding the primary outcome--that is, pre- and postoperative subjective assessments of snoring intensity provided by the patients' bed partners--were available for comparison for 21 of the 23 patients. Of the 21 patients, treatment was deemed successful in 10 (48%). Postoperatively, the overall mean intensity of snoring on a scale of 0 (no snoring) to 10 (terrible snoring) fell by 4 points (p < 0.05). Likewise, the loudness of snoring was also significantly reduced on objective SNAP recordings; the mean intensity fell from 12 to 8 dB (p < 0.05). Of the 10 successfully treated patients, 2 required only one procedure, 5 were improved after two treatments, and 3 underwent three operations. Seventeen of the 23 patients (74%) reported an improvement in quality of life. Surgical complications were mild to moderate, and pain was easily manageable in most cases. Our findings suggest that this procedure can be an effective treatment for socially unacceptable snoring. We hope that in future studies, investigators will evaluate outcomes over a longer term.

Filtration Isolation of Nucleic Acids: A Simple and Rapid DNA Extraction Method.

FINA, filtration isolation of nucleic acids, is a novel extraction method which utilizes vertical filtration via a separation membrane and absorbent pad to extract cellular DNA from whole blood in less than 2 min. The blood specimen is treated with detergent, mixed briefly and applied by pipet to the separation membrane. The lysate wicks into the blotting pad due to capillary action, capturing the genomic DNA on the surface of the separation membrane. The extracted DNA is retained on the membrane during a simple wash step wherein PCR inhibitors are wicked into the absorbent blotting pad. The membrane containing the entrapped DNA is then added to the PCR reaction without further purification. This simple method does not require laboratory equipment and can be easily implemented with inexpensive laboratory supplies. Here we describe a protocol for highly sensitive detection and quantitation of HIV-1 proviral DNA from 100 µl whole blood as a model for early infant diagnosis of HIV that could readily be adapted to other genetic targets.

Protecting medical record information: start your research registries today.

OBJECTIVE: The Health Insurance Portability and Accountability Act (HIPAA) of 1996 was enacted with the long-term goal of improving the efficiency and effectiveness of health care. It has created sweeping changes for clinical medicine and research. Generally, the standards for privacy of individual, identifiable health information (the privacy rule) require patient consent before their protected health information (PHI) can be employed in clinical research. This rule requires that all patients sign an IRB approved informed consent before their identifiable clinical information can be aggregated with the information from other patients. This rule has been applied to ensure the privacy of health care data accrued previously. Accordingly, investigators have been blocked from using the aggregate data from prior clinical records and registries until consent is obtained from living, former patients. At the University of Pittsburgh Department of Otolaryngology, a clinical tumor registry was established in 1982. These data have served as the basis for over 200 publications reflecting practice-based learning. The present study quantifies the cost of HIPAA compliance to maintain access to our faculty's career-long clinical activities and to stress to all physicians the importance of research registries as a means of protecting their own career's work. RESULTS/CONCLUSIONS: Compliance with the privacy rule required that written, informed consents be mailed to 14,330 former patients. This resulted in direct costs of more than $30,888. The practical and financial impact of HIPAA on clinical research and our departmental solutions to these challenges are discussed.

A simple and rapid DNA extraction method from whole blood for highly sensitive detection and quantitation of HIV-1 proviral DNA by real-time PCR.

Early diagnosis and access to treatment for infants with human immunodeficiency virus-1 (HIV-1) is critical to reduce infant mortality. The lack of simple point-of-care tests impedes the timely initiation of antiretroviral therapy. The development of FINA, filtration isolation of nucleic acids, a novel DNA extraction method that can be performed by clinic personnel in less than 2 min has been reported previously. In this report, significant improvements in the DNA extraction and amplification methods are detailed that allow sensitive quantitation of as little as 10 copies of HIV-1 proviral DNA and detection of 3 copies extracted from 100 µl of whole blood. An internal control to detect PCR inhibition was also incorporated. In a preliminary field evaluation of 61 South African infants, the FINA test demonstrated 100% sensitivity and specificity. The proviral copy number of the infant specimens was quantified, and it was established that 100 microliters of whole blood is required for sensitive diagnosis of infants.

The gender gap in a surgical subspecialty: analysis of career and lifestyle factors.

BACKGROUND: Although the percentage of women in surgical subspecialties is increasing, little is known about the experiences of these women compared with their male counterparts. OBJECTIVE: To identify career and lifestyle factors that distinguish female otolaryngologists. DESIGN, SETTING, AND PARTICIPANTS: Otolaryngologists were asked to respond to a confidential 119-item questionnaire. The instrument was sent to all 502 female members of the American Academy of Otolaryngology-Head and Neck Surgery who had finished their residency training and were practicing medicine. For response comparison, the survey was mailed to 2 male otolaryngologists who were matched to each female survey recipient for years since completion of training, geographic region, and practice type. RESULTS: Of the 673 respondents (52.6% response rate), women were more likely to be divorced or separated (P =.001) and have fewer children (P <.001). In contrast to men, women reduced their work hours in conjunction with having more children (P <.001). Controlling for professional hours and hours spent in the operating room per week, type of practice, and years since completion of residency, women earned 15% to 20% less per year than men (P <.001). Men relied more on their spouse or partner for household responsibilities and child care (P <.001), and 34.3% of the women (compared with 7.1% of the men) spent 21 to 40 h/wk on household management (P <.001). CONCLUSION: Although male and female otolaryngologists receive equal training opportunities, women earn less money for performing similar jobs and have increased family responsibilities, which may effect their career advancement.

Transoral radiofrequency treatment of snoring.

OBJECTIVES/HYPOTHESIS: Radiofrequency ablation (RFA) may effectively treat snoring with acceptable patient tolerance. STUDY DESIGN: A cohort of patients with unacceptable snoring underwent RFA to the soft palate between October 1997 and May 2000. Before the therapy, a family member or significant other person was interviewed to rate snoring loudness. METHODS: Snoring was rated on a visual analog scale of 0 to 10 (in which 0 was no snoring and 10 was horrific snoring) before and after therapy. All patients were treated with transoral RFA administered under local anesthesia at 6-week intervals. RESULTS: Complete data were available for 60 of the 75 treated patients. The average number of treatment sessions per patient was 1.8. These patients received an average energy of 1845 J. Overall the average snoring score was 8.9 before therapy and 3.5 after therapy. Fifty-one patients (85%) were considered to have major improvement in snoring loudness. A total of 9 patients (15%) were nonresponders. CONCLUSIONS: RFA to the soft palate is a viable option to treat socially unacceptable snoring. Inadequate response to therapy may reflect misdiagnosis or delivery of an insufficient amount of energy.