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1.
Can J Surg ; 58(6): 378-82, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26574828

RESUMO

BACKGROUND: The rate of stent migration, especially in the short term after implantation, is high in the treatment process. We sought to explore an effective method for preventing early migration after stent implantation for malignant esophageal stricture and to provide the basis for clinical treatment. METHODS: We conducted a prospective, open-label, parallel-assignment randomized controlled trial with patients undergoing stent implantation for malignant esophageal stricture. The proximal segments of stents in the treatment group were fixed with 2 metal clips during the perioperative period of esophageal stent implantation, while no treatment was used in the control group. All patients underwent radiography at 3 and 7 days and 1 and 3 months after placement to assess the stent migration. RESULTS: There were 83 patients in our study. Demographic characteristics were similar between the groups. There was no stent migration observed in the treatment group within 2 weeks of the operation, while stent migration was observed in 6 of 41 (14.6%) cases in the control group, occurring at 3 and 7 days after placement. There were no perioperative complications. CONCLUSION: Perioperative fixation of the proximal segments of stents with metal clips is effective in preventing early stent migration.


CONTEXTE: Le taux de migration des endoprothèses est élevé, surtout peu de temps après leur pose, au cours du processus thérapeutique. Nous avons voulu trouver une méthode efficace pour prévenir la migration précoce des endoprothèses peu après leur pose pour la sténose oesophagienne d'origine maligne et établir la base du traitement clinique. MÉTHODES: Nous avons réalisé un essai prospectif ouvert randomisé et contrôlé selon une affectation parallèle auprès de patients soumis à la pose d'une endoprothèse pour une sténose oesophagienne d'origine maligne. Les segments proximaux des endoprothèses dans le groupe traité ont été fixés à l'aide de 2 agrafes métalliques durant la période périopératoire de la pose de l'endoprothèse oesophagienne alors qu'aucun traitement n'a été utilisé dans le groupe témoin. Tous les patients ont subi une radiographie 3 et 7 jours, puis 1 et 3 mois après la pose de l'endoprothèse pour évaluer sa migration, le cas échéant. RÉSULTANTS: Notre étude comportait 83 patients. Les caractéristiques démographiques étaient similaires entre les groupes. On n'a noté aucune migration de l'endoprothèse dans le groupe traité au cours des 2 semaines suivant l'intervention, tandis que la migration de l'endoprothèse a été observée chez 6 participants sur 41 (14,6 %) du groupe témoin, 3 et 7 jours après la pose. On n'a noté aucune complication périopératoire. CONCLUSION: La fixation périopératoire des segments proximaux des endoprothèses au moyen d'agrafes métalliques permet de prévenir efficacement la migration précoce des endoprothèses.


Assuntos
Neoplasias Esofágicas/complicações , Estenose Esofágica/cirurgia , Migração de Corpo Estranho/prevenção & controle , Stents/efeitos adversos , Instrumentos Cirúrgicos , Técnicas de Sutura/instrumentação , Idoso , Neoplasias Esofágicas/cirurgia , Estenose Esofágica/etiologia , Feminino , Seguimentos , Migração de Corpo Estranho/diagnóstico , Humanos , Masculino , Estudos Prospectivos , Falha de Prótese , Fatores de Tempo
2.
Zhonghua Yi Xue Za Zhi ; 85(49): 3457-9, 2005 Dec 28.
Artigo em Chinês | MEDLINE | ID: mdl-16686059

RESUMO

OBJECTIVE: To investigate the characteristics of sensory gating P50 of patients with first-episode schizophrenia. METHODS: The auditory evoked potentials P50 were recorded in 66 patients (Group Sch) with first-episode schizophrenia and 92 normal controls (Group NC) by using conditioning/testing paradigm presented with auditory double click stimuli. RESULTS: The value of S1-P50 of Group Sch was 3 microV +/- 2 microV, significantly lower than that of Group NC (6 microV +/- 3 microV, P <0.01). The value of S2-P50 of Group Sch was 4 microV +/- 2 microV, significantly higher than that of Group NC (2 microV +/- 1 microV, P < 0.01). The S2/S1 ratio of Group Sc was 81% +/- 40%, significantly higher than that of Group NC (42% +/- 21%, P < 0.01). The value of S2 - S1 of Group Sch was 2 microV +/- 1 mciroV, significantly lower than that of Group Sch (3 mciroV +/- 2 microV). The value of 100 (1-S2/S1) of Group Sch was 19% +/- 17%, significantly lower than that of Group NC (58% +/- 21% , P < 0.01). CONCLUSION: Sensory gating deficit exists in the patients with first-episode schizophrenia, manifested in deficiency of inhibition that can be quantitatively observed by measuring auditory evoked potential P50.


Assuntos
Potenciais Evocados Auditivos/fisiologia , Esquizofrenia/fisiopatologia , Adolescente , Adulto , Atenção , Eletroencefalografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tempo de Reação
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