- Email: [email protected]
Do our Noses Lead Us Away from the Scent?
Scientific Session—Sunday
identified by the otolaryngologist and treated by the optometrist. Patients completed a questionnaire evaluating their symptoms pre- and post-treatment. Results: The average post-treatment score was significantly lower than at pretreatment (p ⬍0.0001). The chief complaint was resolved in 24 patients.
Conclusion: Treatment of Vertical Heterophoria with corrective lenses incorporating prism significantly reduces symptoms of dizziness and facial/head pain. Other symptoms that improved significantly were: unsteadiness, depth perception problems, transient diplopia, head tilting, reading difficulty, and disorientation in malls.
10:30 AM to 12:00 PM LACC Room 502A
patient’s history cannot be relied upon when determining their olfactory ability.
•
Scientific Session: Rhinology Moderators: Serge A. Martinez, MD; Maria C. Veling, MD
10:30
AM
Do our Noses Lead Us Away from the Scent? Carl M. Philpott, MB ChB MRCS DLO (presenter); Charlotte R. Wolstenholme, MRCSEd; Paul C. Goodenough; Allan Clark; George E Murty, MD PhD FRCS Stowmarket United Kingdom; Leicester United Kingdom; Leicester United Kingdom; Norwich United Kingdom; Kirby Muxloe United Kingdom
Objectives: The subjective and objective correlation of nasal symptoms with measurements of nasal physiological parameters has been shown to be variable. This study aimed to see if subjective sense of smell and nasal peak inspiratory flow rate had any correlation with olfactory thresholds. Methods: A cohort study of eighty-three normal volunteers was conducted in a clinic setting at a university hospital. Volunteers from Amongst hospital staff and from patients and relatives in the ENT clinic waiting room were recruited, who had no active rhinological complaints, nor were taking any medications and were aged between 20 and 70. Olfactory thresholds were established for each subject and subjective sense of smell on visual analogue scores were recorded along with peak inspiratory nasal flow (PINF). Nasal symptoms, mood and alertness were also measured by way of visual analogue scores. Results: Subjective perception of smell had no correlation with olfactory thresholds achieved (p ⫽ 0.4057). The other subjective measures also had no correlation with thresholds, although there was a significant relationship of PINF to thresholds. Conclusion: As with the sensation of nasal patency, the self-assessment of a subject’s sense of smell has poor correlation with their actual olfactory ability thus implying that a
10:38
AM
Computer Assisted Surgery and Tele-3D-Computer Assisted Surgery in Otorhinolaryngology Ivica Klapan, MD (presenter) Zagreb Croatia
Objectives: During Tele-3D-surgery, the computer with its operative field image allows the surgeon to compare the preoperative and postoperative images and models of the operative field, and to study video records of the procedure itself. Methods: Using tele-fly-through or tele-VE through 3D-models, surgeons can preview all the characteristics of the region, and so predict and determine the next steps of the operation. Results: We used several standards to encode live video signals in telesurgery, such as M-JPEG, MPEG1, MPEG2 and MPEG4. It has been definitely concluded that MPEG4 streams, without audio, have the best picture quality for the operating field/endo camera. For conferencing/ consultation cameras used between two or more connected sites during the surgery, we used JPEG and MPEG1 stream with audio. ORs were connected using several computer network technologies with different bandwidths, from T1, E1 and multiple E1 to ATM-OC3 (from 1Mb/s to 155Mb/s). Conclusion: Using intraoperative records, animated images of the real tele-procedure performed can be designed. This has been used in other fields other than otorhinolaryngology. And in addition to educational applications, VS offers the possibility of preoperative planning in sinus surgery, and has become a very important segment in surgical training and planning of each individual surgical or telesurgical intervention, not only in the reigon of paranasal sinuses. Our tele-3D-surgery allows surgeons not only to see and to transfer video signals, but also to transfer 3D computer models and surgical instrument movements with image/3D-model manipulations, in real time during the surgery (www.mef.hr/MODERNRHINOLOGY).
SUNDAY
P42
Otolaryngology– Head and Neck Surgery August 2005
identified by the otolaryngologist and treated by the optometrist. Patients completed a questionnaire evaluating their symptoms pre- and post-treatment. Results: The average post-treatment score was significantly lower than at pretreatment (p ⬍0.0001). The chief complaint was resolved in 24 patients.
Conclusion: Treatment of Vertical Heterophoria with corrective lenses incorporating prism significantly reduces symptoms of dizziness and facial/head pain. Other symptoms that improved significantly were: unsteadiness, depth perception problems, transient diplopia, head tilting, reading difficulty, and disorientation in malls.
10:30 AM to 12:00 PM LACC Room 502A
patient’s history cannot be relied upon when determining their olfactory ability.
•
Scientific Session: Rhinology Moderators: Serge A. Martinez, MD; Maria C. Veling, MD
10:30
AM
Do our Noses Lead Us Away from the Scent? Carl M. Philpott, MB ChB MRCS DLO (presenter); Charlotte R. Wolstenholme, MRCSEd; Paul C. Goodenough; Allan Clark; George E Murty, MD PhD FRCS Stowmarket United Kingdom; Leicester United Kingdom; Leicester United Kingdom; Norwich United Kingdom; Kirby Muxloe United Kingdom
Objectives: The subjective and objective correlation of nasal symptoms with measurements of nasal physiological parameters has been shown to be variable. This study aimed to see if subjective sense of smell and nasal peak inspiratory flow rate had any correlation with olfactory thresholds. Methods: A cohort study of eighty-three normal volunteers was conducted in a clinic setting at a university hospital. Volunteers from Amongst hospital staff and from patients and relatives in the ENT clinic waiting room were recruited, who had no active rhinological complaints, nor were taking any medications and were aged between 20 and 70. Olfactory thresholds were established for each subject and subjective sense of smell on visual analogue scores were recorded along with peak inspiratory nasal flow (PINF). Nasal symptoms, mood and alertness were also measured by way of visual analogue scores. Results: Subjective perception of smell had no correlation with olfactory thresholds achieved (p ⫽ 0.4057). The other subjective measures also had no correlation with thresholds, although there was a significant relationship of PINF to thresholds. Conclusion: As with the sensation of nasal patency, the self-assessment of a subject’s sense of smell has poor correlation with their actual olfactory ability thus implying that a
10:38
AM
Computer Assisted Surgery and Tele-3D-Computer Assisted Surgery in Otorhinolaryngology Ivica Klapan, MD (presenter) Zagreb Croatia
Objectives: During Tele-3D-surgery, the computer with its operative field image allows the surgeon to compare the preoperative and postoperative images and models of the operative field, and to study video records of the procedure itself. Methods: Using tele-fly-through or tele-VE through 3D-models, surgeons can preview all the characteristics of the region, and so predict and determine the next steps of the operation. Results: We used several standards to encode live video signals in telesurgery, such as M-JPEG, MPEG1, MPEG2 and MPEG4. It has been definitely concluded that MPEG4 streams, without audio, have the best picture quality for the operating field/endo camera. For conferencing/ consultation cameras used between two or more connected sites during the surgery, we used JPEG and MPEG1 stream with audio. ORs were connected using several computer network technologies with different bandwidths, from T1, E1 and multiple E1 to ATM-OC3 (from 1Mb/s to 155Mb/s). Conclusion: Using intraoperative records, animated images of the real tele-procedure performed can be designed. This has been used in other fields other than otorhinolaryngology. And in addition to educational applications, VS offers the possibility of preoperative planning in sinus surgery, and has become a very important segment in surgical training and planning of each individual surgical or telesurgical intervention, not only in the reigon of paranasal sinuses. Our tele-3D-surgery allows surgeons not only to see and to transfer video signals, but also to transfer 3D computer models and surgical instrument movements with image/3D-model manipulations, in real time during the surgery (www.mef.hr/MODERNRHINOLOGY).
SUNDAY
P42
Otolaryngology– Head and Neck Surgery August 2005