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Biomedical subjects

Richard M Gall

Publications and source records attributed to Richard M Gall.

5 recordsLinked to original sources
PubMed2005

Sinonasal endoscopy reporting format: emphasis on chronic rhinosinusitis.

The role of nasal endoscopy has been well characterized in terms of diagnosis and treatment, the methods of performing the endoscopy, and the findings that can be visualized within the nasal cavities. The reporting format of such findings has not been the subject of such detailed popularity. A structured format would create a common language between otolaryngologists, potentially facilitating outcomes assessment and/or research by providing an objective tool for recording findings. More so, professional associations might use a structured format for government or billing negotiations and justifications. The following sinonasal endoscopy reporting format represents a synthesis of clinical experience from three rhinologists in attempting to document endoscopic findings in the nose and sinuses. Our primary objective was limited to establishing a standardized format that will be suitable for objective outcomes assessment and communication between endoscopic sinus surgeons. It is also hoped that this reporting format can be correlated with patients' subjective quality of life outcomes.

Chronic Disease↗
PubMed2005

Evaluation of static thermal and near-infrared hyperspectral imaging for the diagnosis of acute maxillary rhinosinusitis.

Although acute maxillary rhinosinusitis may be confidently diagnosed based on a history and physical examination by trained specialists, its diagnosis by primary health workers is less dependable, with a tendency for overdiagnosis, often resulting in inappropriate treatment. It is commonly perceived among the otolaryngology community that a new and objective diagnostic tool would be beneficial, facilitating the widespread and reliable diagnosis of rhinosinusitis. Numerous merits of thermal imaging make it an attractive modality to fulfill this role. Although modern systems possess ample sensitivity to detect small thermal abnormalities that accompany various physiologic conditions, reservations remain over whether a rhinosinusitis-induced thermal response in the overlying tissues is dominant enough to yield reliable diagnostic information in a normal clinical setting. Hence, a small preliminary study was conducted with the objective of testing the hypothesis that acute maxillary rhinosinusitis results in hyperthermia over the affected site and subsequent contralateral thermal asymmetry that is clearly distinguished from the normal population. The complementary yet distinct modality of near-infrared hyperspectral imaging, which detects changes in tissue perfusion, was assessed concurrently. We have not found a diagnostic test based on static thermal imaging or near-infrared hyperspectral imaging as viable options for the widespread and routine diagnosis of human sinus conditions. The presence and prevalence of visually inconspicuous epidermal features have been identified as representing a major confounding factor for facial thermal imaging. This article also serves as an overview of diagnostic imaging techniques employed in the detection of maxillary rhinosinusitis.

Acute Disease↗
PubMed2004

Image-guided sinus surgery.

Image-guided sinus surgery is a relatively new technology used to track the position of endoscopic instruments placed within the nose or sinus cavities. The different types of image-guided technologies are reviewed. A review of our experience with 55 patients in whom this technology was used over a 10-month period is presented. Our interpretation of the usefulness and limitations of this technology is described.

Endoscopy↗
PubMed2002

Control of bleeding in endoscopic sinus surgery: use of a novel gelatin-based hemostatic agent.

OBJECTIVE: To determine whether FloSeal Matrix Hemostatic Sealant is a safe and effective means of controlling bleeding post-endoscopic sinus surgery (ESS) and to assess postoperative healing. DESIGN: Prospective clinical study. SETTING: University of Toronto. METHODS: Eighteen patients with FloSeal placed on a total of 30 operative sites post-ESS. Time to cessation of bleeding was assessed intraoperatively. Patients had the operative sites assessed at 30 days postoperatively. MAIN OUTCOME MEASURES: Effectiveness of FloSeal in controlling bleeding and aiding in healing of the operative site. RESULTS: FloSeal adequately controls postoperative bleeding in patients post-ESS. Healing was also not adversely affected. CONCLUSIONS: FloSeal is a safe and effective treatment for controlling blood loss after EES. It may also provide support to the middle meatus as well as improve healing of the operative site compared with the use of traditional nasal packing. However, randomized clinical trials are needed to further evaluate this.

Adult↗