Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “STRIDOR”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 919 records · Page 51Linked to original sources
PubMed2003

Safe and efficacious use of procedural sedation and analgesia by nonanesthesiologists in a pediatric emergency department.

BACKGROUND: Children often require relief of pain and anxiety when undergoing diagnostic or therapeutic procedures in the emergency department (ED). Procedural sedation and analgesia (PSA) has become standard practice in the outpatient setting for such procedures. Few studies have looked at the overall success and incidence of complications of PSA as performed by nonanesthesiologists. OBJECTIVES: To prospectively describe PSA as performed in a pediatric ED and to report the success of sedation and incidence of complications. DESIGN: Prospective descriptive study. Setting and Population Subjects aged 0 to 21 years presenting to the ED of an urban, tertiary care, children's hospital between May 1, 1997, and April 30, 1999, requiring PSA for a diagnostic or therapeutic procedure. METHODS: A PSA form was designed and used by ED personnel to record pertinent clinical and demographic characteristics of patients, information related to the procedure, vital signs, and occurrence of complications. Success of sedation was defined a priori as successful completion of the procedure in a minimally responsive subject. Complications were defined as apnea, hypoxia (sustained pulse oximetry, <93%), seizure, arrhythmia, laryngospasm, stridor, hypotension, rash, vomiting, disinhibition, or aspiration. Follow-up telephone calls were made to families within 24 to 48 hours of discharge from the ED to document further complications. MAIN OUTCOME MEASURES: Rate of success of sedation and incidence of complications. RESULTS: Procedural sedation and analgesia was performed 1244 times in 1215 patients during the study. The median age of the patients was 5.9 years (mean age, 6.9 years; range, 2 months to 19.4 years). There were 791 boys (65.1%) and 424 girls (34.9%). A little more than half of the patients (643 or 52.9%) required PSA for fracture reduction and 396 (32.6%) for laceration repair. Intravenous (IV) fentanyl citrate and midazolam hydrochloride was provided in 734 sedation events (59.0%); IV ketamine hydrochloride, midazolam, and atropine sulfate in 293 (23.6%); and intramuscular ketamine, midazolam, and atropine in 82 (6.6%). Procedural sedation and analgesia was successfully provided in 1177 (98.6%) of 1194 sedation events. Complications occurred in 207 (17.8%) of 1161 events. The most common complication was hypoxia (79.1% of patients), followed by vomiting (6.2% of patients). No patient required intubation. One patient had an oral airway placed, 3 patients received flumazenil, 3 patients received naloxone hydrochloride, and 1 patient received naloxone and bag-valve-mask ventilation. Seventy (9.8%) of 717 patients, following discharge from the ED, reported minor complications related to PSA. The most common complication was vomiting (76.7% of patients), followed by persistent dizziness (6.8% of patients). Patients who received IV fentanyl and midazolam were significantly more likely to experience a complication during PSA (P<.001), while patients sedated using IV ketamine, midazolam, and atropine (P =.006) or IV midazolam alone (P =.005) were less likely. No difference in success of sedation or incidence of complications at follow-up was found between the types of PSA provided. CONCLUSIONS: Complications related to PSA occurred in 17.9% of patients, but most commonly consisted of hypoxia that was easily treated. Sedation was successful in 98.6% of patients. Procedural sedation and analgesia can be safely and effectively provided by nonanesthesiologists in a pediatric ED.

Adolescent↗
PubMed1978

Nebulized racemic epinephrine by IPPB for the treatment of croup: a double-blind study.

Racemic epinephrine has been advocated for the treatment of croup, but controlled studies have not proved it more effective than saline. Twenty patients (aged 4 months to 5 years) hospitalized with acute croup and persistent inspiratory stridor at rest were randomly assigned to one of two treatment groups: saline or racemic epinephrine, both nebulized and delivered by intermittent positive pressure breathing. Clinical scores were significantly improved (P less than .01) at ten and 30 minutes following the treatment with racemic epinephrine but not at 120 minutes. Racemic epinephrine was significantly more effective than saline at 10 (P less than .01) and 30 minutes (P less than .05) but not at 120 minutes after the treatment. We conclude that nebulized racemic epinephrine is effective treatment for the acute signs of croup.

Acute Disease↗
PubMed1980

Foreign body in the airway. A review of 200 cases.

Two hundred children aged 6 months to 12 years were admitted to the hospital with a foreign body in the airway. Food materials constituted 93% of all foreign bodies. A positive history of foreign body aspiration was obtained in 88% of the cases. The most common symptoms of laryngotracheal foreign bodies were dyspnea, cough, and stridor, whereas those of bronchial foreign bodies were cough, decreased air entry, wheezing, and dyspnea. Chest fluoroscopy contributed to the diagnosis in 90% of the cases of bronchial foreign bodies, but only 32% of those in the laryngotracheal area. Of the foreign bodies removed, 98 1/2% were done by laryngoscopy, tracheoscopy, and/or bronchoscopy. Complications were involved in 6% of the cases, including one death. History of recurrent intractable pneumonia should make one consider a foreign body in the airway. Removal of one foreign body does not exclude the existence of another. The condition may be fatal; thus immediate removal of the foreign body is mandatory.

Airway Obstruction↗
PubMed1981

Subglottic stenosis in newborn intensive care unit graduates.

Five infants with postintubation subglottic stenosis were identified among 64 intubated patients in a follow-up clinic. The presence of laryngeal lesions was not suspected until three weeks to three months after discharge from their initial hospitalization. The onset of stridor, often precipitated by respiratory illness, led to the diagnosis, which in one case was delayed for as long as three months. No correlation was found between the presence of the severity of laryngeal pathology and the gestational age of the infants or the duration of intubation in this study. In spite of the precautions taken for the intubation of neonates requiring assisted ventilation, subglottic stenosis may develop in these infants and should always be considered in newborn intensive care unit graduates when they manifest refractory or recurrent respiratory obstruction in the first year of life. Routine follow-up of all intubated neonates to detect subglottic stenosis is recommended.

Critical Care↗
PubMed1983

Indications for flexible fiberoptic bronchoscopy in pediatric patients.

Although the availability of flexible fiberoptic bronchoscopy (FFB) has been a major advance in adult pulmonary medicine, the role of FFB in pediatrics has remained less well defined. Therefore, a two-year retrospective study was undertaken to determine the indications for FFB in 95 pediatric patients (mean age, 6.9 years) who underwent 129 FFB procedures. Indications for FFB included stridor (41/129), abnormal chest roentgenogram (38/129), airway evaluation in patients with tracheostomy (13/129), airway obstruction (11/129), hoarseness (9/129), recurrent pneumonia (7/129), chronic cough (4/129), failed extubation (3/129), tracheal injury (2/129), and hemoptysis (1/129). Overall, a specific diagnosis was made in 88% of cases, of which 48% involved a lower airway disorder. A minor complication rate of 2% was observed with no major complications.

Adolescent↗
PubMed1986

Subglottic foreign bodies in pediatric patients.

Impacted subglottic foreign bodies may produce upper airway obstruction and clinical signs simulating croup or asthma. We identified the roentgenologic and clinical features in six patients. In four of these patients, the parent had not observed the aspiration episode, so that the diagnosis was delayed. Roentgenologic studies demonstrated subglottic narrowing of the upper airway with a homogeneous, poorly defined radiodensity within the narrowed segment. These roentgenologic studies are usually diagnostic; therefore, if infants or young children present with stridor of undetermined cause, soft-tissue upper airway roentgenography is indicated.

Asthma↗
PubMed1987

Laryngotracheal foreign bodies in children. A comparison with bronchial foreign bodies.

Twenty cases of laryngotracheal foreign bodies were reviewed over an 11-year period to determine features that differentiate these from bronchial foreign bodies. A history of choking or aspiration was obtained in 18 patients (90%). The most common presenting symptoms were stridor, wheezing, sternal retractions, and cough. The chest roentgenogram was most often normal (58% [11/19]). Posteroanterior and lateral neck roentgenograms suggested the diagnosis in 92% (12/13) of the patients. The correct diagnosis was made within the first 24 hours of presentation in 11 patients (55%); 19 patients (95%) were correctly diagnosed within one week. The incidence of major complications was 45% (9/20); however, in patients with a delay in diagnosis of over 24 hours the complication rate was 67% (6/9). For this reason, in children with a diagnosis of croup or reactive airway disease who respond poorly or whose condition deteriorates despite appropriate medical therapy, early endoscopy should be considered.

Adolescent↗
PubMed1988

Safety and efficacy of flexible endoscopy in children with bronchopulmonary dysplasia.

Because concern has been raised about the efficacy and safety of flexible fiberoptic bronchoscopy (FFB) in pediatric patients with chronic cardiopulmonary disorders, we reviewed the results of 129 flexible endoscopies performed on 47 children with a history of bronchopulmonary dysplasia (BPD) at our institution over a 44-month period. Indications for FFB; weight and age of the patient; and procedure format, including medication usage, findings, specimen results, and complications, were analyzed. Evaluation of previously diagnosed subglottic stenosis and airway abnormalities were the two most common indications (33% and 32%, respectively). Persistent or recurrent infiltrates or atelectasis, need for cultures, stridor, failure to extubate, hoarseness, and persistent wheeze were also cited. Endoscopic diagnoses included adenoidal hypertrophy, laryngomalacia, vocal cord abnormalities, interarytenoid membrane, subglottic stenosis, granulomas, tracheobronchomalacia, stenosis, obstruction, generalized inflammation/edema, polyps, tracheal bronchi, and anomalous bronchial anatomy. Cytomegalovirus, pneumococcus, nontypeable Haemophilus influenzae, Pseudomonas, or mixed gram-negative flora were isolated from some patients without tracheostomy. Minor complications (transient bradycardia, mild nasopharyngeal bleeding, and mild worsening of upper airway obstruction) occurred in 3.1% of procedures, but no severe complications occurred. Management was directly affected by procedure results in 41% of procedures. We concluded that the FFB can be a safe, useful procedure in the management of children with BPD.

Bronchial Diseases↗
PubMed1993

Acquired subglottic cysts in the low-birth-weight infant. Characteristics, treatment, and outcome.

OBJECTIVE: To provide a descriptive summary of characteristics, including demographics, symptoms, risk factors, and outcome of acquired subglottic cysts identified in the neonatal period. DESIGN: Patient series. SETTING: A tertiary neonatal care unit and referral neonatal follow-up clinic. PARTICIPANTS: One hundred seventy-four preterm infants undergoing flexible bronchoscopy, 21 (12%) referred for airway evaluation because of symptoms and 153 (88%) examined consecutively following 7 days or more of endotracheal intubation. INTERVENTION: None. MEASUREMENTS/RESULTS: Subglottic cysts were identified in 11 (7.2%) of 153 preterm infants examined prospectively at discharge from the neonatal intensive care unit after prolonged intubation and two (10%) of 21 infants referred for airway evaluation. Infants with subglottic cysts were extremely preterm (mean +/- SEM gestation, 26.7 +/- 0.5 weeks) and very low birth weight (894.6 +/- 64.6 g). The mean duration of intubation was 28.5 +/- 5.0 days. Most infants, particularly those with large cysts, were symptomatic with stridor, hoarseness, or obstructive apnea. In two cases, airway symptoms began after discharge from the neonatal intensive care unit. Ten (91%) of the 11 patients were discharged receiving home oxygen. Generally, multiple cysts were present in the subglottic space, most prominently located in the posterior aspect of the trachea. Three of five patients with large cysts received a tracheostomy. Two additional patients had surgical marsupialization of the cysts, and six others experienced resolution without treatment. One patient with large cysts died of viral pneumonia 10 months after surgical intervention. An additional patient with large cysts died before surgical intervention secondary to chronic lung disease and cor pulmonale. All surviving infants had resolution of signs of airway obstruction and 10 of the 11 did not require supplemental oxygen or have symptoms of chronic pulmonary disease at age 1 year. CONCLUSION: Intubation-acquired subglottic mucous cysts in the neonate may occur more commonly than was previously recognized. Symptoms of this lesion may mimic features of chronic lung disease. Early identification of the cysts with flexible bronchoscopy is important since airway compromise may progress and surgical intervention may be lifesaving.

Bronchoscopy↗
PubMed2000

Resectional treatment for thyroid cancer with tracheal invasion: a long-term follow-up study.

HYPOTHESIS: Transmural invasion of the trachea by well-differentiated thyroid carcinomas is a locally advanced disease condition. It frequently causes deaths owing to airway obstruction. We hypothesized that resection of the invaded trachea followed by primary anastomosis provides the opportunity for cure. DESIGN: A retrospective review study of medical records. SETTING: The surgical department of a tertiary referral center. PATIENTS: Eight patients with well-differentiated thyroid carcinomas, complicated with tracheal invasion resulting in bleeding and airway obstruction, operated on by tracheal resection and immediate anastomosis, were included. INTERVENTIONS: All patients received total thyroidectomy and neck lymph node dissection as well as segmental tracheal resection followed by primary reconstruction. Postoperative radioactive sodium iodine I 131 treatment and suppression therapy with thyroxine were applied to all of them. MAIN OUTCOME MEASURE: Postoperative follow-up of serum levels of human thyroglobulin and abnormal radioactive iodine 131I from whole body scan. RESULTS: Seven patients are alive. Of these patients, 5 had no evidence of disease: (3 had no evidence of cancer for more than 10 years' follow-up), 2 had regional lymph node metastasis, and 1 had lung metastases. The remaining patient had anastomotic site recurrence with airway obstruction and needed tracheostomy to relieve stridor. She was lost to follow-up 39 months after undergoing the initial operation. CONCLUSIONS: Patients with mucosal invasion of the trachea by well-differentiated thyroid carcinomas should be treated by surgical resection followed by primary reconstruction when technically feasible. This facilitates postoperative care, and it is possible to achieve long-term survival with improvement of the quality of life and possible cures.

Adult↗
PubMed1990

Vertebral artery pseudoaneurysm. A rare complication of subclavian artery catheterization.

The present case report details a previously unreported complication of subclavian vein catheterization, vertebral artery pseudoaneurysm. Attention to this problem was brought about in the patient by the development of stridor and dysphagia noted 5 days following placement of the subclavian catheter. A computed tomographic scan of the neck revealed a superior mediastinal, contrast-enhancing mass in the region of the right subclavian artery with a "bull's-eye" sign suggestive of a pseudoaneurysm. Arteriography subsequently proved the pseudoaneurysm to be of vertebral origin. The pseudoaneurysm was ligated via a neck incision together with a median sternotomy to obtain vascular control. The evaluation and treatment options of this problem are discussed.

Aged↗
PubMed1998

Familial laryngeal paralysis.

Vocal fold paralysis (VFP) is the second most frequent cause of congenital stridor. Although often due to birth trauma, infection, and brainstem abnormalities, most cases are idiopathic. Infrequently, a family history of VFP is elicited, identifying a role for genetic factors in laryngeal function. This study describes a family in which an autosomal dominant form of familial laryngeal abductor paralysis segregates. The typical physical findings, diagnostic and therapeutic considerations, and possible molecular mechanisms of this disorder are discussed in detail.

Adolescent↗
PubMed1999

Atypical presentations of actinomycosis.

BACKGROUND: Actinomycotic infections of the cervicofacial region are uncommon. Most major medical centers report approximately one case per year. Presenting clinical manifestations are confusing because they often mimic other disease processes. Diagnosis may be difficult due to a general lack of familiarity with the disease and the fastidious nature of the organism in culture. The cervicofacial manifestations of actinomycosis are varied, and a high index of suspicion is required to make an accurate and timely diagnosis. METHODS: Retrospective chart review with the presentation of four unusual cases of actinomycosis were performed. RESULTS: Two patients were initially seen with dysphagia from a tongue base mass. The third patient was initially seen with a 3-week history of worsening hoarseness and stridor. Examination revealed an ulcerative lesion of the left hemilarynx and pyriform sinus. All three patients were thought to have a neoplastic process. Diagnosis was made on histologic examination of a tissue biopsy. The fourth patient was initially seen with a buccal space mass that was draining externally. Culture of the purulent drainage revealed Actinomyces. In all four cases, symptoms resolved after appropriate antimicrobial therapy. CONCLUSIONS: Actinomycosis of the head and neck, although rare, is an important entity to the otolaryngologist. A confusing clinical presentation combined with the fastidious nature of the organism make for a difficult diagnosis. A high index of suspicion is required to make an accurate diagnosis and institute the appropriate antibiotic therapy.

Actinomycosis, Cervicofacial↗
PubMed1998

Aryepiglottic fold: normal topography and clinical implications.

The aryepiglottic folds extend between the arytenoid cartilage and the lateral margin of the epiglottis on each side and constitute the lateral borders of the laryngeal inlet. They are involved in physiologic closure mechanisms of the larynx and in pathologic conditions such as inspiratory stridor. Information on the normal topography of the aryepiglottic folds is poor and controversial. Therefore, this region was reinvestigated in serial whole-organ sections of 25 plastinated normal adult human larynges. Dorsally, the right and the left aryepiglottic folds are separated by the interarytenoid notch and comprise the corniculate and cuneiform cartilages, as well as numerous groups of mucous glands. Ventrally, the aryepiglottic folds are adjacent to the peri-epiglottic adipose tissue. Both regions are clearly separated by several layers of transversely oriented collagenous fiber layers. The muscular constituent of the aryepiglottic folds is only poorly developed, and no muscle fibers insert at the epiglottis. A coherent quadrangular membrane representing a ligamentous "skeleton" of the aryepiglottic folds is absent. A conspicuous collagenous fiber layer is found only to strengthen the free dorsal margin of the fold. Both muscular and ligamentous components may render the aryepiglottic folds sufficiently tense as to resist inspiratory inward suction in normal cases. However, pliability must be preserved to guarantee adequate folding in approximation of the aryepiglottic folds during deglutition. Thereby, the posterior part of the laryngeal inlet is closed, whereas the anterior part is probably closed by independent inward bulging of the peri-epiglottic adipose tissue.

Adult↗
PubMed1996

Bronchoalveolar lavage or oropharyngeal cultures to identify lower respiratory pathogens in infants with cystic fibrosis.

As collections of lower respiratory tract specimens from young children with cystic fibrosis (CF) are difficult, we determined whether oropharyngeal cultures predicted lower airway pathogens. During 1992-1994, 75 of 90 (83%) infants with CF diagnosed by neonatal screening had 150 simultaneous bronchoalveolar lavage (BAL) and oropharyngeal specimens collected for quantitative bacterial culture at a mean age of 17 months (range, 1-52). Ten children undergoing bronchoscopy for stridor served as controls. Total and differential cell counts and interleukin-8 concentrations were measured in BAL fluid. A subset of bacterial pathogens were typed by pulsed field gel electrophoresis. A non-linear relationship with inflammatory markers supported a diagnosis of lower airway infection when > or = 10(5) colony-forming units/ml were detected. This criterion was met in 47 (31%) BAL cultures from 37 (49%) children. Staphylococcus aureus (19%), Pseudomonas aeruginosa (11%), and Hemophilus influenzae (8%) were the major lower airway pathogens. In oropharyngeal cultures, S. aureus (47%), Escherichia coli (23%), H. influenzae (15%), and P. aeruginosa (13%) predominated. The sensitivity, specificity, and positive and negative predictive values of oropharyngeal cultures for pathogens causing lower respiratory infections were 82%, 83%, 41%, and 97%, respectively. When there was agreement between paired oropharyngeal and BAL cultures, genetic fingerprinting showed some strains of the same organism were unrelated. We conclude that oropharyngeal cultures do not reliably predict the presence of bacterial pathogens in the lower airways of young CF children.

Bacteriological Techniques↗
PubMed1997

Inflammatory pseudotumor of the trachea in a ten-month-old infant.

Inflammatory pseudotumors occur through a non-neoplastic process that involves abnormal proliferation of spindle cells (myoblasts and fibroblasts) with an inflammatory cell infiltrate. Clinically, radiographically, and grossly these lesions mimic malignant neoplasms but are readily distinguished histologically. We report an infant who presented with an inflammatory pseudotumor of his trachea that caused severe stridor.

Bronchoscopy↗
PubMed1998

Severe viral respiratory infections in infants with cystic fibrosis.

Limited data in children with cystic fibrosis (CF) suggest that respiratory viral infections during infancy result in substantial morbidity. Eighty of 101 (79%) infants with CF diagnosed by neonatal screening during 1991-1996 were recruited into a prospective, multiple-birth cohort study. We aimed to perform an initial, then annual bronchoalveolar lavage (BAL) for bacterial and viral culture, cytology, IL-8, and elastolytic activity over the following 2 years. When possible, BAL was also performed during any hospitalization for a pulmonary exacerbation, and additional specimens for viral culture were collected by nasopharyngeal aspiration. Thirteen infants undergoing bronchoscopy for congenital stridor served as disease controls. During infancy, 31 children (39%) were hospitalized for respiratory disease and 20 (65%) cases had an etiologic agent identified. Respiratory viruses were detected in 16/31 (52%) cases, including four with simultaneous bacterial infection. Another four were infected with Staphylococcus aureus. Respiratory syncytial virus predominated and was found in seven infants. In the absence of bacteria, those with viral infections had acute onset of respiratory distress, were not treated with antibiotics, and had an uncomplicated hospital course. Compared to noninfected CF subjects and controls, infected infants had elevated BAL inflammatory indices (P < 0.01). Eleven of 31 (35%) hospitalized infants followed for 12-60 months acquired Pseudomonas aeruginosa, compared with only three of 49 (6%) subjects not hospitalized for respiratory symptoms during infancy (risk ratio 5.8, CI 1.9, 24). We conclude that respiratory viruses are important causes of hospitalization in CF infants. While viral infections were self-limited, they were accompanied by airway inflammatory changes, and admission to hospital was associated with early acquisition of Pseudomonas aeruginosa and persistent respiratory symptoms.

Bronchoalveolar Lavage↗
PubMed1982

Orofacial synovial sarcoma: a clinicopathologic study of 11 new cases and review of the literature.

Synovial sarcoma arises most commonly in the lower extremity, particularly in the region of the lower thigh and knee. Yet the occurrence of thus mesenchymal neoplasm in the head and neck area has been convincingly documented, albeit confined almost exclusively to cervical and parapharyngeal sites. Therefore, in view of its rarity in the head and neck, we analyzed a group of 11 synovial sarcomas arising in the orofacial region. The series comprised nine men (82%) and two women (18%). In common with synovial sarcoma at more conventional sites, this is a disease of young adults: ages ranged from 16-49 years (median, 34 years). Topographically, two subsets were delineated, a more common facial group with eight cases (four cheek, two parotid region, one infraorbital, one submental), all arising as gradually enlarging, usually nontender, solitary tumors; and three intraoral ones (two tonsillar, one lingual), two of which were polypoid and one was an exophytic tonsillar mass which presented with hemoptysis and stridor. Follow-up data, obtained for nine patients (range, 1.3-15.0 years), disclosed three (33%) tumor-related deaths, all belonging to the facial group. Treatment, difficult to significantly correlate with survival in this small series, varied from surgical excision alone to a multimodality approach including both irradiation and chemotherapy. Histologically, all the neoplasms revealed characteristic biphasic features, predominantly fibrosarcomatous in one, but, more typically, showing epithelial clefts and/or pseudoacinar spaces in the others. Differential diagnosis, depending on the proportion of the biphasic components, ranged from spindle cell mesenchymal neoplasms to various adenocarcinomas, including those arising in mixed tumors of salivary gland.

Adolescent↗