Research Topics
| V HoffsteinSummaryAffiliation: University of Toronto Country: Canada Publications
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Detail Information
Publications
Acidification of distal esophagus and sleep-related breathing disturbancesSoren Berg
Lund Sleep Study Group, Department of Oto-Rhino-Laryngology, Head and Neck Surgery, University of Lund, Sweden
Chest 125:2101-6. 2004..CONCLUSIONS: Episodes of esophageal acidification are common in patients with sleep apnea, and are usually associated with respiratory and pressure events. However, changes in pH were independent of the magnitude of the Pes...- Does snoring contribute to presbycusis?V Hoffstein
Departments of Medicine and Otolaryngology, St Michael s Hospital and Department of Medicine, Mt Sinai Hospital, University of Toronto, Toronto, Canada
Am J Respir Crit Care Med 159:1351-4. 1999..None of these statistical tests demonstrated that snoring was a significant determinant of hearing. We conclude that snoring is not associated with hearing loss and is therefore unlikely to account for presbycusis... - Comparing pressures required to abolish snoring and sleep apneaV Hoffstein
University of Toronto, Toronto, Canada
Can Respir J 8:427-30. 2001..The purpose of this study was to compare pressures required to abolish apneas (POSA) with pressures required to abolish snoring (PSNOR)... - Apnea and snoring: state of the art and future directionsV Hoffstein
University of Toronto, Department of Medicine, St Michael s Hospital, Respiratory Division, Toronto, Canada
Acta Otorhinolaryngol Belg 56:205-36. 2002.... - Relationship between smoking and sleep apnea in clinic populationVictor Hoflstein
Department of Medicine, St Michael s Hospital, University of Toronto, ON, Canada
Sleep 25:519-24. 2002..To examine the relationship between smoking and sleep apnea... - Pulmonary function and sleep apneaVictor Hoffstein
Department of Medicine, St Michael s Hospital, University of Toronto, Toronto, Ontario, Canada
Sleep Breath 7:159-65. 2003..We conclude that in nonsmoking patients without lung disease, sleep apnea is unrelated to pulmonary function measured during wakefulness... - Review of oral appliances for treatment of sleep-disordered breathingVictor Hoffstein
Department of Medicine, University of Toronto, St Michael s Hospital, 30 Bond Street, Toronto, ON, Canada M5B 1W8
Sleep Breath 11:1-22. 2007..We conclude that oral appliances, although not as effective as CPAP in reducing sleep apnea, snoring, and improving daytime function, have a definite role in the treatment of snoring and sleep apnea... - Relative hysteresis of the airways and lung parenchyma in normal subjectsI Katz
Department of Medicine, St Michael s Hospital, University of Toronto, Ontario, Canada
J Appl Physiol 65:2390-4. 1988.... - Snoring and arousals: a retrospective analysisV Hoffstein
Department of Medicine, St. Michael's Hospital, Toronto, Ontario, Canada
Sleep 18:866-72. 1995..008, respectively). We conclude that despite the limitations of this retrospective analysis, there appears to be an association between snoring and arousals, warranting further, properly designed prospective studies... - An evaluation of flow-volume curves as a screening test for obstructive sleep apneaI Katz
Department of Medicine, St Michael s Hospital, University of Toronto, Ontario, Canada
Chest 98:337-40. 1990..We conclude that because of low sensitivity, flow-volume loops are not a useful screening test for the diagnosis of OSA in snoring patients... - Airflow limitation in morbidly obese, nonsmoking menI Rubinstein
St Michael s Hospital, Toronto, Ontario
Ann Intern Med 112:828-32. 1990..Finally, we found that obese men, but not women, had reduced maximum expiratory flow rates at 50% and 75% of exhaled vital capacity. CONCLUSION: Obesity may contribute independently of smoking habits to chronic airflow limitation in men... - Impact of menopause on the prevalence and severity of sleep apneaD R Dancey
Department of Medicine, University of Toronto, Division of Respirology, St. Michael's Hospital, Toronto, Canada
Chest 120:151-5. 2001..CONCLUSION: There may be functional, rather than anatomic, differences in the upper airway between premenopausal and postmenopausal women, which may account for the observed differences in apnea prevalence and severity... - Upper airway pressures in snorers and nonsnorers during wakefulness and sleepS Berg
Department of Otolaryngology, St Michael's Hospital, Toronto, Ontario
J Otolaryngol 30:69-74. 2001..CONCLUSIONS: Compared to nonsnorers, recumbent nonapneic snorers have elevated differential pharyngeal pressures indicative of increased upper airway resistance and reduced airway patency; this is present during wakefulness and sleep... - Changes in cross-sectional airway areas induced by methacholine, histamine, and LTC4 in asthmatic subjectsN A Molfino
Department of Medicine, University of Toronto, Ontario, Canada
Am Rev Respir Dis 146:577-80. 1992..05; ANOVA). These results may be explained by distinct pharmacologic properties of the agents used and may have relevance in the understanding of the pathophysiology of asthma... - Comparing perceptions and measurements of snoringV Hoffstein
St. Michael's Hospital, Toronto, Ontario, Canada
Sleep 19:783-9. 1996.... - How and why should we stabilize the upper airway?V Hoffstein
St. Michael's Hospital, University of Toronto, Canada
Sleep 19:S57-60. 1996.... - Snoring: is it in the ear of the beholder?V Hoffstein
Department of Medicine, St. Michael's Hospital, University of Toronto, Ontario, Canada
Sleep 17:522-6. 1994..abstract truncated at 250 words).. - Predictive value of clinical features in diagnosing obstructive sleep apneaV Hoffstein
Department of Medicine, St. Michael's Hospital, Toronto, Canada
Sleep 16:118-22. 1993.... - Changes in pulmonary function and cross-sectional area of trachea and bronchi in asthmatics following inhalation of procaterol hydrochloride and ipratropium bromideV Hoffstein
Department of Medicine, St Michael s Hospital, Toronto, Canada
Am J Respir Crit Care Med 149:81-5. 1994..abstract truncated at 250 words).. - Effect of nasal dilation on snoring and apneas during different stages of sleepV Hoffstein
Department of Medicine, St. Michael's Hospital, University of Toronto, Ontario, Canada
Sleep 16:360-5. 1993..We conclude that dilation of the anterior nares in patients without nasal pathology has a relatively weak effect on snoring, and routine use of nasal dilating appliances is not recommended for treatment of snoring... - Gender differences in sleep apnea: the role of neck circumferenceDavid R Dancey
Department of Medicine, St. Michael's Hospital, University of Toronto, Canada
Chest 123:1544-50. 2003..CONCLUSIONS: We conclude the following: (1) the frequency and severity of sleep apnea in the sleep clinic population is greater in men than women, and (2) factors other than NC, age, and BMI must contribute to these gender differences... - Is snoring dangerous to your health?V Hoffstein
St. Michael's Hospital, University of Toronto, Canada
Sleep 19:506-16. 1996..Consequently, based on the available information, one cannot conclude that snoring is an independent risk factor for such adverse vascular complications as hypertension and cardiovascular and cerebrovascular disease... - Pharyngeal narrowing in end-stage renal disease: implications for obstructive sleep apnoeaJ M Beecroft
Department of Medicine, University of Calgary, Calgary, AB, Canada
Eur Respir J 30:965-71. 2007..In conclusion, since a narrower upper airway predisposes to upper airway occlusion during sleep, it is suggested that this factor contributes to the pathogenesis of sleep apnoea in dialysis-dependent patients... - Nocturnal haemodialysis increases pharyngeal size in patients with sleep apnoea and end-stage renal diseaseJaime M Beecroft
Department of Medicine, University of Calgary, Alberta, Canada
Nephrol Dial Transplant 23:673-9. 2008..We hypothesized that NHD increases pharyngeal cross-sectional area and that this is associated with an improvement in sleep apnoea...