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Dive into the research topics where Lisa Elden is active.

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Featured researches published by Lisa Elden.


The New England Journal of Medicine | 2013

A randomized trial of adenotonsillectomy for childhood sleep apnea.

Carole L. Marcus; Reneé H. Moore; Carol L. Rosen; Bruno Giordani; Susan L. Garetz; H. Gerry Taylor; Ron B. Mitchell; Raouf S. Amin; Eliot S. Katz; Raanan Arens; Shalini Paruthi; Hiren Muzumdar; David Gozal; Nina Hattiangadi Thomas; Dean Beebe Janice Ware; Karen Snyder; Lisa Elden; Robert C. Sprecher; Paul Willging; Dwight T. Jones; John P. Bent; Timothy F. Hoban; Ronald D. Chervin; Susan S. Ellenberg; Susan Redline

BACKGROUND Adenotonsillectomy is commonly performed in children with the obstructive sleep apnea syndrome, yet its usefulness in reducing symptoms and improving cognition, behavior, quality of life, and polysomnographic findings has not been rigorously evaluated. We hypothesized that, in children with the obstructive sleep apnea syndrome without prolonged oxyhemoglobin desaturation, early adenotonsillectomy, as compared with watchful waiting with supportive care, would result in improved outcomes. METHODS We randomly assigned 464 children, 5 to 9 years of age, with the obstructive sleep apnea syndrome to early adenotonsillectomy or a strategy of watchful waiting. Polysomnographic, cognitive, behavioral, and health outcomes were assessed at baseline and at 7 months. RESULTS The average baseline value for the primary outcome, the attention and executive-function score on the Developmental Neuropsychological Assessment (with scores ranging from 50 to 150 and higher scores indicating better functioning), was close to the population mean of 100, and the change from baseline to follow-up did not differ significantly according to study group (mean [±SD] improvement, 7.1±13.9 in the early-adenotonsillectomy group and 5.1±13.4 in the watchful-waiting group; P=0.16). In contrast, there were significantly greater improvements in behavioral, quality-of-life, and polysomnographic findings and significantly greater reduction in symptoms in the early-adenotonsillectomy group than in the watchful-waiting group. Normalization of polysomnographic findings was observed in a larger proportion of children in the early-adenotonsillectomy group than in the watchful-waiting group (79% vs. 46%). CONCLUSIONS As compared with a strategy of watchful waiting, surgical treatment for the obstructive sleep apnea syndrome in school-age children did not significantly improve attention or executive function as measured by neuropsychological testing but did reduce symptoms and improve secondary outcomes of behavior, quality of life, and polysomnographic findings, thus providing evidence of beneficial effects of early adenotonsillectomy. (Funded by the National Institutes of Health; CHAT ClinicalTrials.gov number, NCT00560859.).


Otolaryngology-Head and Neck Surgery | 1994

Angiographic Embolization for the Treatment of Epistaxis: A Review of 108 Cases

Lisa Elden; Walter Montanera; Karel G. terBrugge; Robert A. Willinsky; Pierre Lasjaunias; David A. Charles

Ninety-seven patients were referred to the Toronto Hospital (Western Division) between January 1984 and January 1992 for selective angiograpic embolization (108 embolizations, including repeat procedures) to control intractable or recurrent severe epistaxis. Eighty-one patients (comprising 94 embolizations) were referred on an emergent basis because of failure of conventional conservative therapy, consisting of anterior and posterior packing. The remaining 16 patients (14 embolizations) were referred electively for recurrent epistaxis. A retrospective review of these cases was performed, with long-term telephone follow-up achieved in over 95% of cases. Embolization safely controlled active hemorrhage in 88% of the emergent cases. The success rate increased to 90% when two cases in which the source of epistaxis was found to be from the internal carotid artery were excluded (because these vessels could not be safely embolized). Of the patients whose epistaxis was initially controlled by embolization, 82% had no further nosebleeds (follow-up time ranged from 2 to 82 months; average, 26.8 months). More than half of the long-term failures were seen in patients with Osier-Weber-Rendu disease. Overall, the mortality rate was 0% and the long-term morbidity rate was 2% (one cerebral vascular accident and one case of skin slough in the territory of the superficial temporal artery).


Laryngoscope | 1994

Ultrasonography and ultrasound‐guided fine‐needle aspiration biopsy of head and neck lesions: A surgical perspective

Nicholas P. McIvor; Jeremy L. Freeman; Shia Salem; Lisa Elden; Arnold M. Noyek; Yvan C. Bedard

A head and neck ultrasound‐guided fine‐needle aspiration clinic was set up to determine the role of ultrasound and ultrasound‐guided fine‐needle aspiration in the evaluation of patients with lesions in this region. One hundred ninety‐five lesions were biopsied by ultrasound‐guided fine‐needle aspiration in 203 patients. Ultrasound detected 2 or more lesions in 14 (48%) of 29 patients with a clinically solitary thyroid nodule. Three (8.8%) of 34 lesions thought to be within the parotid gland were determined to be external. A pronounced learning curve was evident in the technique of ultrasound‐guided fine‐needle aspiration, particularly for nonpalpable disease. Adequacy of sampling for each 3‐month period was 71%, 89%, and 94%, respectively. Seventy‐four percent of central aspirations were satisfactory compared to 54% of peripheral aspirations. Ultrasound‐guided fine‐needle aspiration did not alter the clinical staging of metastatic neck disease in 8 patients having 10 neck dissections but proved useful in detecting nodal recurrence in 3 irradiated necks that did not proceed to surgery. The smallest node to harbor malignancy had 4‐mm maximal axial diameter. We conclude that ultrasound and ultrasound‐guided fine‐needle aspiration are valuable adjuncts to the clinical examination.


Pediatrics | 2009

Lateral Sinus Thrombosis as a Complication of Otitis Media: 10-Year Experience at the Children's Hospital of Philadelphia

Christina B. Bales; Steven E. Sobol; Ralph F. Wetmore; Lisa Elden

OBJECTIVES. Lateral sinus thrombosis is a rare intracranial complication of otitis media that is traditionally described in countries with poor access to medical care. Our goal was to describe the clinical presentation, management, and outcome of patients diagnosed with lateral sinus thrombosis in a US tertiary care center and to highlight the clinically relevant differences in presentation between these patients and those described in previous reports. PATIENTS AND METHODS. The medical charts of 13 patients diagnosed with otogenic lateral sinus thrombosis were reviewed. These patients were identified from a manual search of 156 subjects with International Classification of Diseases, Ninth Revision codes corresponding with a diagnosis of mastoiditis or thromboembolism over a 10-year period (1997–2007) at the Childrens Hospital of Philadelphia. RESULTS. In contrast to previous reports in the literature, the majority of patients in this series exhibited cranial neuropathies and signs of raised intracranial pressure. Nearly all of the patients had a history of acute otitis media treated with antibiotics in the weeks preceding admission. However, many patients denied high fevers or active otomastoid symptoms, which are classically associated with lateral sinus thrombosis. The diagnosis was made in all of the children by using computed tomography and MRI/venography. Treatment strategies included myringotomy tube placement, simple mastoidectomy, intravenous antibiotics, and anticoagulation. Posthospitalization follow-up data revealed no significant long-term complications. CONCLUSIONS. Despite appropriate antibiotic therapy, lateral sinus thrombosis and other intracranial complications of otitis media are still a threat to children in the modern era. Neurologic, rather than otologic, symptoms may dominate the presentation of otogenic lateral sinus thrombosis. Thus, a high index of suspicion may be critical for ensuring timely diagnosis of this rare condition.


Pediatrics | 2014

Variation in Quality of Tonsillectomy Perioperative Care and Revisit Rates in Children’s Hospitals

Sanjay Mahant; Ron Keren; Russell Localio; Xianqun Luan; Lihai Song; Samir S. Shah; Joel S. Tieder; Karen M. Wilson; Lisa Elden; Rajendu Srivastava

OBJECTIVE: To describe the quality of care for routine tonsillectomy at US children’s hospitals. METHODS: We conducted a retrospective cohort study of low-risk children undergoing same-day tonsillectomy between 2004 and 2010 at 36 US children’s hospitals that submit data to the Pediatric Health Information System Database. We assessed quality of care by measuring evidence-based processes suggested by national guidelines, perioperative dexamethasone and no antibiotic use, and outcomes, 30-day tonsillectomy-related revisits to hospital. RESULTS: Of 139 715 children who underwent same-day tonsillectomy, 10 868 (7.8%) had a 30-day revisit to hospital. There was significant variability in the administration of dexamethasone (median 76.2%, range 0.3%–98.8%) and antibiotics (median 16.3%, range 2.7%–92.6%) across hospitals. The most common reasons for revisits were bleeding (3.0%) and vomiting and dehydration (2.2%). Older age (10–18 vs 1–3 years) was associated with a greater standardized risk of revisits for bleeding and a lower standardized risk of revisits for vomiting and dehydration. After standardizing for differences in patients and year of surgery, there was significant variability (P < .001) across hospitals in total revisits (median 7.8%, range 3.0%–12.6%), revisits for bleeding (median 3.0%, range 1.0%–8.8%), and revisits for vomiting and dehydration (median 1.9%, range 0.3%–4.4%). CONCLUSIONS: Substantial variation exists in the quality of care for routine tonsillectomy across US children’s hospitals as measured by perioperative dexamethasone and antibiotic use and revisits to hospital. These data on evidence-based processes and relevant patient outcomes should be useful for hospitals’ tonsillectomy quality improvement efforts.


Archives of Otolaryngology-head & Neck Surgery | 2009

Suppurative Complications of Acute Otitis Media: Changes in Frequency Over Time

Marc C. Thorne; Linda Chewaproug; Lisa Elden

OBJECTIVE To review the experience at the Childrens Hospital of Philadelphia in the management of suppurative complications of acute otitis media from 2000 to 2007, with an emphasis on changes in frequency over time. DESIGN Retrospective cohort study. SETTING Academic, tertiary care childrens hospital. PATIENTS The study population comprised 87 children (age <18 years) with acute mastoiditis treated at our institution over the period of January 1, 2000, to December 31, 2007. Acute mastoiditis was defined by evidence of inflammation in the middle ear space and signs of mastoid inflammation (postauricular swelling, redness, or tenderness) or radiographic evidence of destruction of mastoid air cells, sigmoid sinus thrombosis, or abscess formation. Patients with underlying cholesteatoma were excluded. MAIN OUTCOME MEASURE Frequency of cases of acute mastoiditis per year. RESULTS The frequency of cases of acute mastoiditis at our institution was positively correlated with calendar time, both for all cases of acute mastoiditis (Spearman rank correlation, r = 0.73; P = .04) and for cases of mastoid subperiosteal abscess (r = 0.96; P < .001). CONCLUSIONS We observed an increase in the frequency of cases of acute mastoiditis with subperiosteal abscess seen at our institution over the study period, controlling for case volume. These findings suggest an increase in incidence, although further population-based studies are required to definitively evaluate this possibility.


Pediatrics | 2015

Quality of life and obstructive sleep apnea symptoms after pediatric adenotonsillectomy

Susan L. Garetz; Ron B. Mitchell; Portia Parker; Reneé H. Moore; Carol L. Rosen; Bruno Giordani; Hiren Muzumdar; Shalini Paruthi; Lisa Elden; Paul Willging; Dean W. Beebe; Carole L. Marcus; Ronald D. Chervin; Susan Redline

BACKGROUND AND OBJECTIVES: Data from a randomized, controlled study of adenotonsillectomy for obstructive sleep apnea syndrome (OSAS) were used to test the hypothesis that children undergoing surgery had greater quality of life (QoL) and symptom improvement than control subjects. The objectives were to compare changes in validated QoL and symptom measurements among children randomized to undergo adenotonsillectomy or watchful waiting; to determine whether race, weight, or baseline OSAS severity influenced changes in QoL and symptoms; and to evaluate associations between changes in QoL or symptoms and OSAS severity. METHODS: Children aged 5 to 9.9 years with OSAS (N = 453) were randomly assigned to undergo adenotonsillectomy or watchful waiting with supportive care. Polysomnography, the Pediatric Quality of Life inventory, the Sleep-Related Breathing Scale of the Pediatric Sleep Questionnaire, the 18-item Obstructive Sleep Apnea QoL instrument, and the modified Epworth Sleepiness Scale were completed at baseline and 7 months. Changes in the QoL and symptom surveys were compared between arms. Effect modification according to race and obesity and associations between changes in polysomnographic measures and QoL or symptoms were examined. RESULTS: Greater improvements in most QoL and symptom severity measurements were observed in children randomized to undergo adenotonsillectomy, including the parent-completed Pediatric Quality of Life inventory (effect size [ES]: 0.37), the 18-item Obstructive Sleep Apnea QoL instrument (ES: –0.93), the modified Epworth Sleepiness Scale score (ES: –0.42), and the Sleep-Related Breathing Scale of the Pediatric Sleep Questionnaire (ES: –1.35). Effect modification was not observed by obesity or baseline severity but was noted for race in some symptom measures. Improvements in OSAS severity explained only a small portion of the observed changes. CONCLUSIONS: Adenotonsillectomy compared with watchful waiting resulted in significantly more improvements in parent-rated generic and OSAS-specific QoL measures and OSAS symptoms.


Archives of Otolaryngology-head & Neck Surgery | 2015

The Use of Clinical Parameters to Predict Obstructive Sleep Apnea Syndrome Severity in Children The Childhood Adenotonsillectomy (CHAT) Study Randomized Clinical Trial

Ron B. Mitchell; Suzan Garetz; Reneé H. Moore; Carol L. Rosen; Carole L. Marcus; Eliot S. Katz; Raanan Arens; Ronald D. Chervin; Shalini Paruthi; Raouf S. Amin; Lisa Elden; Susan S. Ellenberg; Susan Redline

IMPORTANCE It is important to distinguish children with different levels of severity of obstructive sleep apnea syndrome (OSAS) preoperatively using clinical parameters. This can identify children who most need polysomnography (PSG) prior to adenotonsillectomy (AT). OBJECTIVE To assess whether a combination of factors, including demographics, physical examination findings, and caregiver reports from questionnaires, can predict different levels of OSAS severity in children. DESIGN, SETTING, AND PARTICIPANTS Baseline data from 453 children from the Childhood Adenotonsillectomy (CHAT) study were analyzed. Children 5.0 to 9.9 years of age with PSG-diagnosed OSAS, who were considered candidates for AT, were included. INTERVENTIONS Polysomnography for diagnosis of OSAS. MAIN OUTCOMES AND MEASURES Linear or logistic regression models were fitted to identify which demographic, clinical, and caregiver reports were significantly associated with the apnea hypopnea index (AHI) and oxygen desaturation index (ODI). RESULTS Race (African American), obesity (body mass index z score > 2), and the Pediatric Sleep Questionnaire (PSQ) total score were associated with higher levels of AHI and ODI (P = .05). A multivariable model that included the most significant variables explained less than 3% of the variance in OSAS severity as measured by PSG outcomes. Tonsillar size and Friedman palate position were not associated with increased AHI or ODI. Models that tested for potential effect modification by race or obesity showed no evidence of interactions with any clinical measure, AHI, or ODI (P > .20 for all comparisons). CONCLUSIONS AND RELEVANCE This study of more than 450 children with OSAS identifies a number of clinical parameters that are associated with OSAS severity. However, information on demographics, physical findings, and questionnaire responses does not robustly discriminate different levels of OSAS severity. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT00560859.


International Journal of Pediatric Otorhinolaryngology | 1999

The economic cost of otitis media in Canada

Peter C. Coyte; Carl V. Asche; Lisa Elden

The purpose of this study was to estimate the total costs of otitis media (OM) from a societal perspective using a prevalence-based approach to estimate disease related costs for Canadians with OM in 1994. Direct expenditures attributable to OM associated with hospitals, other institutions, physicians, other health professionals, drugs, research and other components of care were assessed, along with estimates of lost productivity due to illness and the workloss of caregivers. The total costs of OM for Canadians were


The American Journal of Surgical Pathology | 2007

Hamartomatous tongue lesions in children

Portia A. Kreiger; Linda M. Ernst; Lisa Elden; Ken Kazahaya; Faizan Alawi; Pierre Russo

611.0 million in 1994, with direct and indirect cost components at

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Carole L. Marcus

University of Pennsylvania

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Ron B. Mitchell

University of Texas Southwestern Medical Center

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Carol L. Rosen

Case Western Reserve University

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Susan Redline

Brigham and Women's Hospital

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Jeffrey Cheng

Massachusetts Eye and Ear Infirmary

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Raanan Arens

Albert Einstein College of Medicine

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Eliot S. Katz

Boston Children's Hospital

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Raouf S. Amin

Cincinnati Children's Hospital Medical Center

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