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Introduction. Definition " upper respiratory tract stenosis " (URTS) includes a large number of nosologies. The most common are cicatricial stenoses, in particular, post-intubation ones as well as bilateral paralysis of the larynx. An important issue for nowadays is choosing the curative modality for such patients.Purpose. To compare outcomes after treating children with URTS.Material and methods. The authors have assessed results of treatment of 110 patients who had reconstructive surgery in 2010-2019. Patients were divided into two groups depending on the nosology: stenosis of the upper respiratory tract (n = 71) and bilateral paralysis of the larynx (n-39). In each group, four types of surgeries were performed: costal cartilage plasty, plasty with T-tube (TT), a modified version of plasty with TT, plasty with a stent. The choice of treatment technique was determined mostly by the tendency to make this or that type of surgery in authors' departments, as well as by the nosology, severity of the disease and patient's age. Decannulation terms, surgical time, early and late postoperative complications as well as relapse-free period were assessed.Results. 66% patients were decannulated in Group 1; in Group 2 - 69%. Group 1 a statistically reliable comparison was possible between the following techniques: costal cartilage plasty and laryngeal stent plasty (p > 0.005) as well as plasty with TT implantation and the proposed modified technique (p > 0.005). While using Mann-Whitney test and Log Rank, the authors found out that in Group 1 there were no significant difference in surgical time, relapse-free period and stenosis degree (p > 0.005). However, decannulation terms after plastic surgery of the larynx with costal cartilage implantation are longer than after plastic surgery with stent implantation (p < 0.005). In Group 2, the authors compared three abovementioned curative modalities, excluding laryngeal plasty with TT implantation. Thus, surgical time for costal cartilage plasty is longer, if to compare to other two techniques (p < 0.005). There is also no significant difference in decannulation terms and relapse-free periods between all three techniques (p > 0.005).Conclusion. The results obtained have demonstrated the effectiveness of long-term stenting with TT placement in children, mainly with cicatricial stenoses, and in older children. The trial also revealed that laryngoplasty with costal cartilage in children with bilateral laryngeal paralysis is an effectiveness choice too.
Introduction. Definition " upper respiratory tract stenosis " (URTS) includes a large number of nosologies. The most common are cicatricial stenoses, in particular, post-intubation ones as well as bilateral paralysis of the larynx. An important issue for nowadays is choosing the curative modality for such patients.Purpose. To compare outcomes after treating children with URTS.Material and methods. The authors have assessed results of treatment of 110 patients who had reconstructive surgery in 2010-2019. Patients were divided into two groups depending on the nosology: stenosis of the upper respiratory tract (n = 71) and bilateral paralysis of the larynx (n-39). In each group, four types of surgeries were performed: costal cartilage plasty, plasty with T-tube (TT), a modified version of plasty with TT, plasty with a stent. The choice of treatment technique was determined mostly by the tendency to make this or that type of surgery in authors' departments, as well as by the nosology, severity of the disease and patient's age. Decannulation terms, surgical time, early and late postoperative complications as well as relapse-free period were assessed.Results. 66% patients were decannulated in Group 1; in Group 2 - 69%. Group 1 a statistically reliable comparison was possible between the following techniques: costal cartilage plasty and laryngeal stent plasty (p > 0.005) as well as plasty with TT implantation and the proposed modified technique (p > 0.005). While using Mann-Whitney test and Log Rank, the authors found out that in Group 1 there were no significant difference in surgical time, relapse-free period and stenosis degree (p > 0.005). However, decannulation terms after plastic surgery of the larynx with costal cartilage implantation are longer than after plastic surgery with stent implantation (p < 0.005). In Group 2, the authors compared three abovementioned curative modalities, excluding laryngeal plasty with TT implantation. Thus, surgical time for costal cartilage plasty is longer, if to compare to other two techniques (p < 0.005). There is also no significant difference in decannulation terms and relapse-free periods between all three techniques (p > 0.005).Conclusion. The results obtained have demonstrated the effectiveness of long-term stenting with TT placement in children, mainly with cicatricial stenoses, and in older children. The trial also revealed that laryngoplasty with costal cartilage in children with bilateral laryngeal paralysis is an effectiveness choice too.
Introduction. One of the most pressing issues of modern otorhinolaryngology is the problem of the formation of persistent defects of the vocal cords and tympanic membrane. This state of affairs is due to the variety of reasons that cause the development of these conditions, as well as the fact that the treatment of these processes, as a rule, is a technically complex task and is not always effective.Aim. Experimental evaluation of the possibility of using bioengineered implants based on MSCs, PEG-fibrin gel and collagen matrix to restore defects in vibrating tissues of ENT organs – vocal folds and tympanic membrane.Materials and methods. For the experiment on vocal fold restoration, 6 rabbits were selected, divided equally into 2 groups. After the formation of the vocal fold scar, a bioequivalent was implanted: spheroids based on MSCs + PEG-fibrin gel (group – VF-spheroids, n = 3) in a volume of 0.5 ml, for the control group, the role of bioequivalent was performed by saline solution (VF-control group, n = 3). For the eardrum repair experiment, 6 chinchillas were selected, divided equally into 2 groups. At the first stage, a persistent chronic perforation was created, on which either no intervention was carried out (ED-control group, n = 3), or the perforation was closed using a bioequivalent based on MSC spheroids, PEG-fibrin gel and collagen matrix (ED-spheroid group, n = 3).Results and discussion. Endoscopic and morphological examination revealed a more complete restoration of tissue structure in the treatment groups compared to the control groups.Conclusion. Implantation of the developed bioequivalents in the sites of vocal fold and tympanic membrane injury leads to the formation of tissue morphologically similar to the structure of intact structures.
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