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Dive into the research topics where Amber D. Shaffer is active.

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Featured researches published by Amber D. Shaffer.


Laryngoscope | 2017

The role of the otolaryngologist in the evaluation and diagnosis of eosinophilic esophagitis

Mark Kubik; Prasad John Thottam; Amber D. Shaffer; Sukgi S. Choi

To describe the clinical presentation and role of the otolaryngologist in the evaluation of eosinophilic esophagitis (EoE) at a tertiary pediatric hospital.


Laryngoscope | 2018

Reducing rates of operative intervention for pediatric post-tonsillectomy hemorrhage: Operative Intervention for Pediatric PTH

Rachel L. Whelan; Amber D. Shaffer; Martin E. Anderson; Jessica Hsu; Noel Jabbour

The aims of this study were to determine the frequency of rebleeding in patients admitted for observation after presentation for nonactive hemorrhage in the post‐tonsillectomy period, compare rebleeding rates between patients managed with observation versus initial operative control, and describe the complication profile associated with observation as a management strategy for post‐tonsillectomy bleeding.


International Journal of Pediatric Otorhinolaryngology | 2017

Utility of intraoperative and postoperative radiographs in pediatric cochlear implant surgery

Samantha Anne; Jose Miguel Juarez; Amber D. Shaffer; David Eleff; Dennis Kitsko; Sarah Sydlowski; Erika A. Woodson; David H. Chi

OBJECTIVE Routine plain film radiographs are often obtained to confirm proper placement of electrode after pediatric cochlear implant surgery. Objective is to evaluate necessity of routine radiographs in pediatric cochlear implant cases. STUDY DESIGN Retrospective review. SETTING Two tertiary care academic centers. SUBJECTS AND METHODS Review of all children that underwent cochlear implantation from January 2003 thru June 2015. Exclusions include patients without intraoperative evoked compound action potential (ECAP) data or radiographs and patients undergoing revision surgeries. RESULTS 235 pediatric patients underwent 371 cochlear implants. ECAP measurements were not available in two cases and were excluded from study. Radiographs were obtained in 35/369 cases due to intraoperative concern and four had abnormal findings. All four cases underwent change in management. One other patient had an x-ray because of difficult insertion and abnormal ECAP. Radiograph was normal; however, incision was opened and electrodes inserted further. Overall, 5/369 cases had changes in management intraoperatively. In all five cases, abnormalities were suspected by clinician judgment or abnormal ECAP measurements. Routine radiographs were completed in 349/369 cases and one was abnormal. This patient had known partial insertion due to cochlear fibrosis from meningitis and abnormal radiograph did not result in change in management. CONCLUSION Clinician suspicion and/or abnormal ECAP prompted suspicion for abnormal electrode placement prior to evaluation with radiograph in all cases in which change in management occurred. Intraoperative radiographs may be valuable in setting of clinical suspicion. Routine radiographs do not result in change in management and are, therefore, unnecessary.


Cureus | 2017

Characterization of Sleep Architecture in Down Syndrome Patients Pre and Post Airway Surgery

Mark Mims; Prasad John Thottam; Dennis J. Kitsko; Amber D. Shaffer; Sukgi S. Choi

Objectives To define obstructive sleep architecture patterns in Down syndrome (DS) children as well as changes to sleep architecture patterns postoperatively. Study design The study was a retrospective review. Methods Forty-five pediatric DS patients who underwent airway surgery between 2003 and 2014 at a tertiary children’s hospital for obstructive sleep apnea (OSA) were investigated. Postoperative changes in respiratory parameters and sleep architecture (SA) were assessed and compared to general pediatric normative data using paired t-tests and Wilcoxon signed-rank test. Results Twenty-two out of 45 of the participants were male. Thirty participants underwent tonsillectomy and adenoidectomy, four adenoidectomy, 10 tonsillectomy, and one base of tongue reduction. The patients were divided into two groups based on age (<6 years & >6 years) and compared to previously published age matched normative SA data. DS children in both age groups spent significantly less time than controls in rapid eye movement (REM) and N1 (p<0.02). Children younger than six spent significantly less time in N2 than previously published healthy controls (p<0.0001). Children six years of age or older spent more time than controls in N3 (p=0.003). Airway surgery did not significantly alter SA except for an increase in time spent in N1 (p=0.007). Surgery did significantly reduce median apnea hypopnea index (AHI) (p=0.004), obstructive apnea-hypopnea index (OAHI) (p=0.006), hypopneas (p=0.005), total apneas (p<0.001), and central apneas (p=0.02), and increased the lowest oxygen saturation (p=0.028). Conclusions DS children are a unique population with different SA patterns than the general pediatric population. Airway intervention assists in normalizing both central and obstructive events as well as sleep architecture stages.


Otolaryngology-Head and Neck Surgery | 2016

Paravertebral Nerve Block for Donor Site Pain in Stage I Microtia Reconstruction: A Pilot Study.

Amber D. Shaffer; Noel Jabbour; Mihaela Visoiu; Charles Yang; Robert F. Yellon

Acute Interventional Perioperative Pain Service consultants have routinely placed paravertebral nerve block (PVB) catheters for the continuous release of ropivacaine following stage I microtia reconstruction with costal cartilage graft at our institution since 2010. A retrospective chart review from July 2006 was performed to compare the length of hospital stay, median pain score (0-10 scale), and opioid use of patients receiving PVB with those of historical controls. Statistical analysis included t, Mann-Whitney U, and Fisher’s exact tests. A total of 15 stage I microtia surgeries were included, 10 with PVB and 5 without. Patients with and without PVB had high peak pain scores (8.4 vs 7.8), remained in the hospital for 3.5 and 3.8 days, and consumed 0.69 and 0.36 mg/kg morphine equivalents, respectively. These findings highlight the feasibility of PVB, but larger studies are needed to optimize pain relief in this population.


The Cleft Palate-Craniofacial Journal | 2018

Should Children With Cleft Palate Receive Early Long-Term Tympanostomy Tubes: One Institution’s Experience

Amber D. Shaffer; Matthew Ford; Sukgi S. Choi; Noel Jabbour

Objectives: To determine whether children with cleft palate might benefit from early long-term tympanostomy tubes with the hypothesis that receiving multiple tubes is associated with shorter duration of first tubes. Design: Retrospective cohort study. Setting: Tertiary care children’s hospital. Participants: Records from 401 consecutive children with cleft palate ± cleft lip, born April 2005 to April 2010, were reviewed. After exclusion of children with cleft repair at an outside hospital, no follow-up after 5 years of age, intact secondary palate, no tubes, or tube replacement at palatoplasty, 105 children remained. Main Outcome Measure: Number of tubes. Results: Armstrong grommet tubes were placed at a median age of 6.7 months (range 2.3-19.6 months). Tubes were replaced in 55.3% of patients, with 34.0% receiving ≥3 sets. Duration of first tubes was significantly longer for children with 1 set of tubes compared with those with multiple sets (median 26 vs 19 months, P = .004). Otorrhea, but not perforation, was associated with longer duration of first tubes (median 27 vs 20.5 months, P = .028). Cleft type did not impact the proportion of patients with multiple tubes. Median age at last tube placement for children with multiple tubes was 5.0 years (range 1.9-8.7 years). Conclusion: Short duration of first tubes is associated with receiving multiple tubes. Because most patients require repeat tubes and many require tubes until school age, there is a significant need for controlled, prospective trials of early long-term tube placement in this population.


Otolaryngology-Head and Neck Surgery | 2018

Quality Assessment of the Clinical Practice Guideline for Tympanostomy Tubes in Children

Joshua J. Sturm; Phillip Huyett; Amber D. Shaffer; Dennis Kitsko; David H. Chi

Objectives To determine the association between the introduction of statements 6 and 7 in the 2013 clinical practice guideline (CPG) for tympanostomy tubes in children and the identification of preoperative middle ear fluid (acute otitis media / otitis media with effusion [AOM/OME]) in children undergoing bilateral myringotomy and tube (BMT) placement. Study Design Case series with chart review. Setting Tertiary care children’s medical center. Subjects and Methods Patients who underwent BMT for recurrent AOM were retrospectively reviewed. We examined 240 patients before (BG; 2012) and 240 patients after (AG; 2014) the introduction of the CPG. Results The baseline characteristics of the 2 groups were comparable. The total annual number of BMT placements performed at our institution decreased from 3957 (BG) to 3083 (AG). There was no significant increase in the rate of preoperative AOM/OME identification following CPG introduction (BG 78.3% vs AG 83.3%, P = .164). The rate of identification of AOM/OME in the operating room (OR) increased from 54.2% (BG) to 71.3% (AG, P < .001). The rate of identification of AOM/OME both in the clinic and in the OR increased from 55.1% (BG) to 71.3% (AG, P < .001). Cases with concordant clinic and OR AOM/OME occurred among younger children (P = .045), those with fewer episodes of AOM (P = .043), and those with shorter time between the clinic and OR dates (P = .008). Conclusions Following the introduction of the CPG, there was no change in the rate of identification of AOM/OME prior to recommending BMT placement in children with recurrent AOM. The lack of improved compliance with statements 6 and 7 may be related to multiple clinician- and patient-derived factors.


Laryngoscope | 2018

Second tympanostomy tube placement in children with recurrent acute otitis media

Phillip Huyett; Joshua J. Sturm; Amber D. Shaffer; Dennis J. Kitsko; David H. Chi

To determine the rate and predictors of electing for a second bilateral myringotomy and tympanostomy tube placement (BMT) in children with recurrent acute otitis media (RAOM).


International Journal of Pediatric Otorhinolaryngology | 2018

Outcomes and swallowing evaluations after injection laryngoplasty for type I laryngeal cleft: Does age matter?

Elisabeth Cole; Alexandra Dreyzin; Amber D. Shaffer; Allison B.J. Tobey; David H. Chi; Tony Tarchichi

OBJECTIVES To improve the recognition of differences in presentation amongst patients with type 1 laryngeal clefts of various ages and better understand the age dependent outcomes of injection laryngoplasty. A second aim was to analyze the discrepancies between swallow assessment modalities in various age groups with type I laryngeal clefts undergoing injection laryngoplasty. METHODS A retrospective review of electronic medical records of patients who underwent injection laryngoplasty from 2009 through 2015 at a tertiary care childrens hospital. Data extracted included: Demographics, histories and physical exam findings, diagnostic studies, and medical and surgical treatments. RESULTS Most (72/102, 70.6%) patients were male with a median gestational age at birth of 37 weeks (range 24-41 weeks). Formula thickening and GERD medications were used in 94/102 (92.2%) and 97/102 (95.1%) patients, respectively. Comorbid GERD, laryngomalacia, tracheomalacia, and subglottic stenosis were present in 98/102 (96.1%), 40/102 (39.2%), 9/102 (8.8%), and 14/102 (13.7%) patients, respectively. There was no significant difference in demographics, comorbidities or medical therapy between age groups. Symptoms at presentation differed between age groups with stridor (χ2(1) = 11.6, p = 0.002) and cyanosis (χ2(1) = 8.13, p = 0.012) being more common in the 0-3-month group compared to the 12-36 month group. Symptom resolution and the odds of undergoing additional surgery (second injection or suture repair) over time, however, did not differ. There was a significant reduction in aspiration with thins during FEES (McNemar χ2(1) = 10.7, p = 0.002) and aspiration with nectar during MBS (McNemar χ2(1) = 5.26, p = 0.035) post-injection. After injection, there was significant agreement in aspiration with thins between FEES and MBS (kappa = 0.308 ± SE 0.170, p = 0.035). However, finding aspiration with thins was more common during MBS than during FEES (McNemar χ2(1) = 7.00, p = 0.016). There were no differences in swallow evaluation findings between the age groups. CONCLUSIONS Symptoms of type I laryngeal clefts may differ by age. However, there was no impact of age on the safety and efficacy of surgical intervention.


International Journal of Pediatric Otorhinolaryngology | 2018

Outcomes of adenoidectomy-alone in patients less than 3-years old

Kishan M. Thadikonda; Amber D. Shaffer; Amanda L. Stapleton

OBJECTIVES 1. Determine the percentage of patients under the age of 3 undergoing adenoidectomy-alone who require subsequent management of residual sleep disordered breathing (SDB).2. Characterize complications following adenoidectomy and determine if any perioperative factors are associated with intra-operative or post-operative complications and outcomes. METHODS Case series with chart review was conducted including children seen at a tertiary care childrens hospital between 2008 and 2012. Consecutive patients under the age of 3 who underwent adenoidectomy-alone were identified by billing codes. After excluding those with syndromes, partial adenoidectomies, and those without follow-up, 148 patients were included. Predictors of requiring additional surgery for SDB were evaluated using log-rank tests or Cox proportional hazards regression. RESULTS Median age at time of initial adenoidectomy was 27.5 months (range 11-36 months) and the patient population was comprised of 66.2% males (n = 98/148) and 89.2% Caucasians (n = 132/148). 56.5% (n = 74/131) of patients continued to have residual symptoms of SDB and 34.5% (n = 51/148) underwent additional surgical intervention. Multivariable survival analysis revealed GERD (HR, 6.21; CI, 1.29-29.77, p = .022) and tonsil size (HR, 4.07; CI, 1.57-10.51, p = .004) were significant predictors of additional surgery in this group of patients under the age of 3. There was no observed difference in intra- and post-operative complication rates between patients with and without additional operative intervention. CONCLUSIONS Residual SDB symptoms following adenoidectomy in patients less than 3 years of age are common and require additional surgery at a high rate. Medical comorbidities such as GERD and large tonsil size may help predict the need for additional surgery.

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David H. Chi

Boston Children's Hospital

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Noel Jabbour

University of Pittsburgh

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Sukgi S. Choi

Boston Children's Hospital

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Matthew Ford

University of Pittsburgh

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Phillip Huyett

University of Pittsburgh

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Dennis Kitsko

Boston Children's Hospital

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Nandini Govil

University of Pittsburgh

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