Objective Endoscopic surgical management or injection laryngoplasty of type 1 laryngeal clefts in pediatric patients is used in those who do not respond to conservative treatment. This study compares conservative treatment, endoscopic surgical repair, and injection laryngoplasty for the management of type 1 laryngeal clefts. Data Sources PubMed, Web of Science, and Embase. Review Methods This systematic review included studies of patients with type 1 laryngeal clefts who were managed with conservative treatment, injection laryngoplasty, or endoscopic repair, and all studies reported postintervention outcomes. Two independent investigators assessed study eligibility, rated the quality, and extracted data for analysis. A random effects model was used for meta-analysis of pooled data. Results Of the 1209 studies identified, 27 met inclusion criteria. There were 543 patients with type 1 laryngeal clefts represented in the studies, with outcomes reported for 537. Conservative therapy had a 52% (95% CI, 37%-66%; I2 = 63%) success rate at improving symptoms, while endoscopic repair had a significantly higher percentage resolution of symptoms (70%; 95% CI, 59%-79%; I2 = 62%, P < .001) as compared with conservative treatment (51%; 95% CI, 36%-65%; I2 = 62%) or injection laryngoplasty (36%; 95% CI, 20%-57%; I2 = 70%). The quality scores of the studies ranged from 7 to 12 out of 16. Conclusion Our systematic review demonstrated significant improvement and resolution of symptoms for patients with type 1 laryngeal clefts treated with endoscopic repair as compared with other modalities. More prospective and controlled studies comparing treatment strategies with validated instruments to measure outcomes are necessary to determine their efficacy in the management of type 1 laryngeal clefts.
Symptoms of neuropathic spinal cord injury (SCI) pain include evoked cutaneous hypersensitivity and spontaneous pain, which can be present below the level of the injury. Adverse side-effects obtained with currently available analgesics complicate effective pain management in SCI patients. Voltage-gated Na + channels expressed in primary afferent nociceptors have been identified to mediate persistent hyperexcitability in dorsal root ganglia (DRG) neurons, which in part underlies the symptoms of nerve injury-induced pain. Ambroxol has previously demonstrated antinociceptive effects in rat chronic pain models and has also shown to potently block Na + channel current in DRG neurons. Ambroxol was tested in rats that underwent a mid-thoracic spinal cord compression injury. Injured rats demonstrated robust hind paw (below-level) heat and mechanical hypersensitivity. Orally administered ambroxol significantly attenuated below-level hypersensitivity at doses that did not affect performance on the rotarod test. Intrathecal injection of ambroxol did not ameliorate belowlevel hypersensitivity. The current data suggest that ambroxol could be effective for clinical neuropathic SCI pain. Furthermore, the data suggests that peripherally expressed Na + channels could lend themselves as targets for the development of pharmacotherapies for SCI pain.
Abscesses in the head and neck frequently have odontogenic sources. As bacterial pathogens and antibiotic resistance patterns may change over time and based on location, we describe the current common bacteria found in odontogenic abscesses, the prevalence of antibiotic resistance, and differences in each between pediatric and adult patients in Upstate New York. This is a retrospective review of patients who underwent drainage of odontogenic abscesses (n = 131) from 2002 to 2012 at an academic institution. The medical records were reviewed for results of abscess cultures, comorbidities, and drainage procedures. Polymicrobial sources were identified in 60.3% and monomicrobial in 33.6%. Overall, the most common bacteria were alpha hemolytic Streptococci (33.6%), Streptococcus milleri (32.1%), Prevotella (16.8%), and coagulase-negative Staphylococcus (14.5%). Candida and Morganella spp were more common in children than in adults. Overall, antibiotic resistance was observed in seven different pathogens. The most common antibiotic resistances were to clindamycin and erythromycin, which should be considered when deciding initial antibiotic therapy, especially in adult patients, who trended in this study toward having pathogens with higher rates of resistance.
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