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Biomedical subjects

Rahul K Shah

Publications and source records attributed to Rahul K Shah.

13 recordsLinked to original sources
PubMed2006

The presentation and management of vascular rings: an otolaryngology perspective.

OBJECTIVE: To review the presentation and natural history of children with vascular rings and present management guidelines. METHODS: Retrospective study of tertiary care pediatric medical center charts from 1991 to 2002. RESULTS: There were 37 males and 27 females with a diagnosis of vascular rings. At presentation, 91% of patients had airway symptoms and 47% had esophageal symptoms. Airway symptoms included stridor (63%), recurrent respiratory infections (47%), respiratory distress (19%), and cough (17%). The most common esophageal symptom was dysphagia (27%). Pre-operative studies included: echocardiography (96%), chest X-ray (93%), barium swallow (75%), magnetic resonance imaging (MRI) (60%), and computerized tomography (CT) scan of the chest (59%). Surgical management included open (n=25) and thoracoscopic (n=39) approach. Complications included recurrent laryngeal nerve injury in five patients (8%). CONCLUSION: Children with vascular rings present with respiratory and/or feeding difficulty. The evaluation should include chest X-ray, echocardiography, and barium swallow. Direct laryngoscopy and bronchoscopy are recommended to assess the degree of compression of the airway and/or esophagus, tracheomalacia, and vocal fold motion prior to intervention. Indication for surgical release is given when the diagnosis is made and can be assisted by advanced radiology studies. Surgical options include minimally invasive techniques involving either thoracoscopic or robotic-assisted repairs, as well as open procedures involving thoracotomy.

Aorta, Thoracic↗
PubMed2006

Perceptual voice characteristics in pediatric unilateral vocal fold paralysis.

OBJECTIVE: To describe the voice characteristics of pediatric unilateral vocal fold paralysis (UVFP). STUDY DESIGN AND SETTING: Retrospective series from a children's hospital, 1996 to present. RESULTS: Forty-two patients with a mean age of 7.1 years were diagnosed with UVFP in our voice clinic (prevalence = 5.4%). Paralysis was left sided in 88%, and was most commonly seen after cardiac surgery (28.5%) and prolonged intubation/prematurity (16.7%). Voice analysis showed a moderate degree of breathiness, mild-to-moderate hoarseness and straining, mild muscle tension, and soft loudness. Twenty-six percent of patients required surgical intervention, including injection into the paralyzed fold (7 patients) and medialization thyroplasty (4 patients). Pre-operatively, breathiness was worse (P < .05) in patients undergoing surgical intervention. CONCLUSIONS: Voice characteristics of pediatric UVFP include increased breathiness, hoarseness, straining, muscle tension, and soft loudness. One-fourth of patients underwent surgical intervention; breathiness was the predominant abnormal voice characteristic in the operative cohort. SIGNIFICANCE: The voice characteristics of pediatric patients with UVFP are described. EBM RATING: C-4.

Adolescent↗
PubMed2006

Otolaryngologists' responses to errors and adverse events.

OBJECTIVES: The objectives of this study were to describe otolaryngologists' emotional reactions to errors and adverse events, their efforts to take responsibility, and their attempts to implement improvements. STUDY DESIGN AND METHODS: A retrospective, anonymous survey of 2,500 U.S. otolaryngologists who were members of the American Academy of Otolaryngology-Head and Neck Surgery about errors in their practice was conducted. Respondents were asked whether an error had occurred in their practice in the past 6 months and, if so, to describe the error, its consequences, and any corrective actions taken. Two aspects of these reports stood out, which were beyond the scope of the original study: the respondents' emotional responses and their corrective actions. RESULTS: The response rate was 18.6%. Two hundred ten (45%) respondents reported a total of 212 analyzable error reports and 230 corrective actions. Corrective actions included disclosure to the patient (20 [9%]), ameliorating the consequences of the event to the patient (107 [50%]), personal practice changes (14 [7%]), improvements in the respondent's practice or department (60 [28%]), and hospitalwide or broader corrective actions (19 [9%]). Emotional reactions to errors and adverse events were reported by 22 (10%) otolaryngologists, including regret, embarrassment, guilt, anxiety, loss of temper, and irritation. Legal action was mentioned by five physicians (2%). CONCLUSIONS: Otolaryngologists took actions not only to treat their patients, but also to improve patient care in their practice, department, hospital, or community. Emotional reactions to errors and adverse events are common and need to be addressed in medical training and practice.

Attitude of Health Personnel↗
PubMed2006

Errors and adverse events in otolaryngology.

PURPOSE OF REVIEW: The study of errors in medicine has proliferated in the past few years. This spark was ignited by the Institute of Medicine's report in 2000, titled 'To Err is Human'. Studies of errors have been performed in both medical and surgical specialties. Surgical skill and technology has proliferated over the last century to such an extent that outcomes will probably not improve from focusing finite resources on attempts to enhance surgical skill or developing new instrumentation. Advancing medicine in the 21 Century will probably depend on our ability to address and ameliorate errors and adverse events in healthcare. Directing attention to this previously little studied realm of medicine has the ability to dramatically reduce morbidity and mortality. Small changes have the ability to result in outcomes that are far beyond what is predicted by incremental measures. RECENT FINDINGS: There have been studies identifying and classifying errors in otolaryngology in out-patient and in-hospital settings, addressing allergy sera misadministration, providing quality assurance for pathology reports in head and neck malignancies, implementing computerized patient records, and detailing problems that occur when patients have a test ordered and the results are not followed up. SUMMARY: The study of errors in medicine is going to dramatically increase in the next decade. The practicing otolaryngologist must be vigilant for errors, use surgical time-outs, should have a system in place to track tests ordered and results received, and most importantly have the capability to identify and ameliorate errors as they occur on an individual and institutional level.

Humans↗
PubMed2005

Pediatric vocal nodules: correlation with perceptual voice analysis.

OBJECTIVE: To present the epidemiology and correlation with perceptual analysis of vocal nodules in pediatric patients. METHODS: Retrospective review of patients seen in a tertiary care pediatric hospital's voice center from 1996 to 2003. Six hundred and forty-six patients were evaluated with videostroboscopic examinations and perceptual analysis of voice characteristics by speech pathologists. Appropriate treatment was based on the pathology identified. RESULTS: Two hundred and fifty-four patients (40%) with an average age of 7.7 years (range 0.1-19.3 years) were identified as having vocal nodules. Of these, 72% were male. Six patients (2%) were under the age of 7 months. Nodules were most commonly found in males, aged 3-10 years old. Evidence of gastro-esophageal reflux disease was found in one-quarter of patients; hyperfunction of the larynx was seen in three-fourths. Hyperfunction of the larynx correlates with the size of vocal nodules. Distortion of the vocal fold mucosal wave was not present. Perceptual analysis revealed positive correlation of the severity of hoarseness, breathiness, straining and aphonia with the size of vocal nodules. CONCLUSION: The epidemiology and correlation with perceptual voice analysis in pediatric patients with vocal nodules is presented. Hyperfunction of the larynx correlates with nodule size, while the presence of reflux disease does not. The severity of hoarseness, breathiness, straining and aphonia correlates with the size of vocal nodules.

Adolescent↗
PubMed2005

Tracheoesophageal voice restoration following laryngotracheal separation procedure.

OBJECTIVES: Laryngeal dysfunction leading to incompetence and intractable aspiration can be a life-threatening problem. Laryngotracheal separation (LTS) can be used to prevent aspiration, but results in aphonia. The options for laryngeal speech following LTS are limited. METHODS: We performed tracheoesophageal puncture (TEP) and insertion of a Blom-Singer valve in 3 patients in an attempt to restore their voice after LTS for chronic aspiration. RESULTS: Two patients had intractable aspiration (5 and 14 years) after full-course radiotherapy for laryngeal cancer, and 1 patient had aspiration after a stroke. In the first patient TEP was done as a secondary procedure, and in the other 2 patients it was done at the time of the LTS. The TEP was successful in providing these patients with phonation ability after their LTS procedure. There was no morbidity from these procedures. CONCLUSIONS: Creation of a TEP after an LTS procedure is relatively simple and relatively safe, and allows for the control of aspiration while maintaining vocal function.

Aged↗
PubMed2004

Epiglottitis in the Hemophilus influenzae type B vaccine era: changing trends.

OBJECTIVE: To describe the epidemiology, natural history, and treatment of epiglottitis in the Hemophilus influenzae type B (Hib) vaccine era. DESIGN: Ten-year retrospective study. SETTING: Tertiary-care children's hospital. PATIENTS: Nineteen patients with a discharge diagnosis of epiglottitis. INTERVENTION: As indicated by the presentation of the patient, including direct laryngoscopy, intubation, intravenous antibiotics, and steroids. MAIN OUTCOME MEASURES: Presentation, management, and microbiology. RESULTS: Presenting symptoms included fever, drooling, and hot potato voice. Patients' ages ranged from 15.8 months to 17.5 (mean 8.9) years. From 1992 to 1997, the mean age was 5.8 years; from 1998 to 2002, the mean age was 11.6 years. Sixty-eight percent of patients were transferred from an outside hospital. A lateral neck radiograph was recorded in 84% of patients. Mean leukocyte count was 16600. Direct laryngoscopy with intubation was performed in 79%; intubation was for an average of 3.5 days. H. influenzae was cultured in six patients, five of which had up-to-date immunizations. The most commonly administered antibiotics were ampicillin/sulbactam and ceftriaxone. Steroids were administered to 63% of patients. Complications included deep neck space infection (2), seizure (1), recurrent illness (1), and vocal granuloma (1). There were no deaths. CONCLUSION: The demographics, causative organisms, and natural history of epiglottitis have changed substantially in the Hib vaccination era. The clinician evaluating and treating patients with epiglottitis should be aware of current trends.

Adolescent↗
PubMed2004

Classification and consequences of errors in otolaryngology.

OBJECTIVE: To develop a preliminary classification system for errors in otolaryngology. METHODS: A retrospective, anonymous survey was distributed to 2,500 members of the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS). Respondents were asked whether an error had occurred in their practice in the last 6 months, and if so, to describe the error, its consequences, and any corrective action taken. RESULTS: There were 466 (18.6%) responses. Two hundred ten (45% of respondents) otolaryngologists reported 216 errors. A classification system for errors in otolaryngology was developed. Errors were classified as related to history and physical (1.4%), differential or final diagnosis (1.4%), testing (10.4%), surgical planning (9.9%), wrong-site surgery (6.1%), anesthesia-related (3.3%), wrong drug/dilution on the surgical field (3.8%), technical (19.3%), retained foreign body (0.9%), equipment-related (9.4%), postoperative care (8.5%), medical management (13.7%), nursing/ancillary (0.5%), administrative (6.6%), communication (3.8%), and miscellaneous (0.9%). There were 78 cases of major morbidity and 9 deaths. If these data are representative, there may be more than 2,600 episodes of major morbidity and more than 165 deaths related to medical error in otolaryngology patients annually. CONCLUSIONS: Human error in otolaryngology occurs in all practice components, including diagnostic, treatment, surgical, communication, and administrative. Types of errors reported by otolaryngologists differ from those reported by other specialists. Error classification systems may need to reflect each specialty's realm of practice. Errors in otolaryngology cause appreciable morbidity and mortality. Quantitative study of errors and the development of targeted prevention and amelioration strategies should be a high priority.

Adolescent↗
PubMed2003

Otalgia.

The patient presenting with otalgia poses a diagnostic challenge for which orderly and diligent evaluation and management is needed. The etiology of otalgia can be either primary or referred, and a detailed history and physical examination with directed studies as indicated can elucidate the cause of the pain.

Diagnosis, Differential↗
PubMed2003

Paranasal sinus development: a radiographic study.

OBJECTIVE: To demonstrate the development of the paranasal sinuses in a pediatric population by computed tomography scans. STUDY DESIGN: Radiology records at a tertiary care institution were reviewed for the computed tomography scans of the face, orbit, or paranasal sinuses in patients aged 0 to 12 years. METHODS: Computed tomography scans were reviewed by a head and neck radiologist and otolaryngologist for the development of the frontal, maxillary, ethmoid, and sphenoid sinuses. The size of the pneumatized paranasal sinuses was measured in two planes and graded on a scale of 0 to 3. Ossification of the maxillary crest and vomer, obliteration of the foramen cecum, and development of agger nasi cells, Haller cells, and the superior turbinate were studied. Patients with syndromes, nasal stenosis, choanal atresia, or cystic fibrosis were excluded from the study. RESULTS: In all, 91 computed tomography scans in 66 patients were studied. Serial development could be followed in 16 patients who underwent repeat scans. Patients were divided into six age cohorts based on their age at the time of the scan: 0 to 3 months (10%), 3 to 12 months (13%), 1 to 3 years (13%), 3 to 5 years (20%), 5 to 8 years (29%), and 8 to 12 years (16%). Ethmoid sinuses were the first to fully develop, followed sequentially by maxillary, sphenoid, and frontal sinuses. Each sinus has a rapid rate of development during specified age cohorts. CONCLUSION: The results will aid the physician when correlating the clinical and radiographic findings of pediatric patients aged 0 to 12 years who are being evaluated for sinus disease and potential surgical intervention.

Child↗
PubMed2002

Hereditary hemorrhagic telangiectasia: a review of 76 cases.

OBJECTIVES/HYPOTHESIS: Hereditary hemorrhagic telangiectasia has long been viewed as a rare condition. Recent evidence indicates that the disorder is more frequent than previously thought. Recalcitrant epistaxis is a salient feature of this disease, and the otolaryngologist is often called on to make the diagnosis and guide the primary management of patients with hereditary hemorrhagic telangiectasia. Wider recognition of this condition, awareness of the natural history and associated findings, appropriate workup and screening for arteriovenous malformations (lungs, brain, liver), and knowledge of appropriate interventions can help avoid the considerable morbidity associated with hereditary hemorrhagic telangiectasia. STUDY DESIGN: Retrospective review. METHODS: Records of patients treated by the senior author (S.M.S.) for hereditary hemorrhagic teleangiectasia from 1993 to 2000 were reviewed. RESULTS: Seventy-six patients were identified, 98% of whom had epistaxis as their presenting complaint, with 75% having a family history of hereditary hemorrhagic telangiectasia. The severity of epistaxis varied in the patients: 66% had mild, 21% moderate, and 13% severe epistaxis. Sixty-four percent of patients had no transfusions, 25% had 1 to 10 transfusions, and 11% of patients had more than 10 transfusions. Complications of hereditary hemorrhagic telangiectasia were documented in 30% of patients. Screening for arteriovenous malformations was performed in only 34% of patients. Eighty-two percent of patients received a variable number of Nd:YAG laser treatments. CONCLUSIONS: The study presents the largest retrospective review of patients treated for hereditary hemorrhagic telangiectasia by a single otolaryngologist. The importance of a multidisciplinary approach facilitated by the otolaryngologist for evaluation of concomitant complications and morbidity (arteriovenous malformations) from hereditary hemorrhagic telangiectasia is demonstrated. An algorithm for controlling the epistaxis is presented.

Adult↗