RESUMO
BACKGROUND: Complications of endoscopic treatment of pharyngoesophageal diverticulum (PED) such as bleeding and perforation occur in up to 15 % of cases. Our objective was to compare incision of the PED septum using the ultrasonic device (group H) with incision using electrical current (group M) in a pig model. METHODS: Twenty domestic pigs were divided into groups H and M. The incision of the PED septum was performed using the ultrasonic device or using electrical current, respectively. The procedural time, complication rate, length of the border of the incised septum, and thermal tissue damage were compared between groups. RESULTS: Mean time to divide the septum and total procedure time were significantly shorter in group H. Mean length of the border of the incised septum was significantly higher in group H. The lateral thermal spread caused by electrical current (group M) was more intense. Hemorrhage was exclusively observed in group M. CONCLUSION: Experimental endoscopic diverticulotomy using ultrasonic device was faster and caused less tissue damage when compared to electrical current.
Assuntos
Eletrocirurgia/instrumentação , Esofagoscopia , Procedimentos Cirúrgicos Ultrassônicos/instrumentação , Divertículo de Zenker/cirurgia , Animais , Esofagoscópios , Esofagoscopia/instrumentação , Esofagoscopia/métodos , Feminino , Sus scrofaRESUMO
BACKGROUND: Zenker's diverticulum (ZD) is a rare condition with a reported prevalence of 0.01% to 0.11% in the general population. Endoscopic treatment consists of the division of the septum between the diverticulum and the esophagus, within which the cricopharyngeal muscle is contained. Diathermic monopolar current, argon plasma coagulation, and laser have been used to incise the muscular septum with satisfactory results. The main limitation of endoscopic treatment is the occurrence of complications. Perforation and hemorrhage are reported in as many as 23% and 10% of patients, respectively. OBJECTIVE: The aim of this study was to use the technique of endoscopic diverticulotomy by using a harmonic scalpel in patients with ZD and to demonstrate the feasibility of using flexible and rigid devices in ZD treatment. DESIGN: Case series study. Standard protocol was used for patient management, endoscopic procedure, and data collection. SETTING: Single endoscopist demonstrating preliminary results. PATIENTS: Five patients (4 men; median ± standard deviation [SD] age 69.6 ± 9.06 years, range 59-83 years) with ZD were treated with this technique. All patients reported dysphagia and halitosis. The diagnosis was based on clinical, endoscopic, and radiographic findings. INTERVENTIONS: All patients received general anesthesia and were placed in the left lateral position. A standard videogastroscope (9.8 mm) and a stiff guidewire were used to insert and achieve an adequate exposure of the ZD septum. The septum was divided using a harmonic scalpel under thin endoscope (5.2 mm) visualization through a soft diverticuloscope. MAIN OUTCOME MEASUREMENT: Feasibility of an endoscopic technique by using rigid and flexible devices to treat ZD. RESULTS: Four patients (80%) were successfully treated in 1 session. The median ± SD size of the diverticulum was 3.6 ± 0.89 cm (range 3-5 cm). Median ± SD procedure time was 17.33 ± 2.33 minutes (range 15-20 minutes) in 6 procedures. No hemorrhage or perforation occurred. One patient (20%) required a second session to complete dissection of the ZD septum. All patients demonstrated improvement of dysphagia score after treatment. LIMITATIONS: Small case series design. CONCLUSIONS: Endoscopic treatment of ZD by harmonic scalpel through a soft diverticuloscope was feasible and effective in this small case series. Larger studies are warranted to further evaluate this technique.
Assuntos
Endoscopia Gastrointestinal/métodos , Divertículo de Zenker/cirurgia , Idoso , Idoso de 80 Anos ou mais , Transtornos de Deglutição/etiologia , Endoscópios Gastrointestinais , Endoscopia Gastrointestinal/instrumentação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença , Resultado do Tratamento , Divertículo de Zenker/complicaçõesRESUMO
BACKGROUND: Roux-en-Y gastric bypass (RYGB) is amongst the commonest surgical intervention for weight loss in obese patients. Gastrocutaneous fistula, which usually occurs along the vertical staple line of the pouch, is amongst its most alarming complications. Medical management comprised of wound drainage, nutritional support, acid suppression, and antibiotics may be ineffective in as many as a third of patients with this complication. We present outcomes after endoscopic application of SurgiSIS, which is a novel biomaterial for the treatment of this complication. DESIGN: A case series of 25 patients. METHODS: Twenty-five patients who had failed conservative medical management of gastrocutaneous fistula after RYGB underwent endoscopic application of SurgiSIS--an acellular fibrogenic matrix biomaterial to help fistula healing. MAIN OUTCOME MEASURES: Fistula closure as assessed by upper gastrointestinal imaging and endoscopic examination. RESULTS: In patients who had failed medical management lasting 4-25 (median, 7) weeks, closure of the fistulous tract was successful after one application in six patients (30%), two applications in 11 patients (55%), and three applications in three patients (15%). There were no procedure-related complications. CONCLUSIONS: Endoscopic application of SurgiSIS-an acellular fibrogenic matrix--is safe and effective for the treatment of gastrocutaneous fistula after RYGB.
Assuntos
Materiais Biocompatíveis/uso terapêutico , Fístula Cutânea/cirurgia , Endoscopia/métodos , Derivação Gástrica , Fístula Gástrica/cirurgia , Complicações Pós-Operatórias/cirurgia , Alicerces Teciduais , Adulto , Animais , Antibacterianos/uso terapêutico , Terapia Combinada , Fístula Cutânea/etiologia , Fístula Cutânea/terapia , Matriz Extracelular , Feminino , Fístula Gástrica/etiologia , Fístula Gástrica/terapia , Humanos , Masculino , Teste de Materiais , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/terapia , Estudos Prospectivos , Inibidores da Bomba de Prótons/uso terapêutico , SuínosRESUMO
BACKGROUND: Roux-en-Y gastric bypass is one of the most commonly performed bariatric surgeries in Brazil. Gastric leaks are relatively uncommon and potentially dangerous complications. The initial management of gastric leaks consists in adequate drainage, nutritional support, antibiotics and acid suppression. In almost 30% of the cases the fistula will become chronic. AIM: A novel peroral endoscopic treatment of gastric leaks in Roux-en-Y gastric bypassed patients is presented. METHODS: An acellular biomaterial was endoscopically placed in the fistulous orifice in order to promote healing and avoid surgery in 25 patients. The time between fistula diagnosis and endoscopic treatment varied from 4 to 25 weeks (median: 7 weeks). RESULTS: Endoscopic treatment was successful in 20 (80%) patients. Fistula closure was obtained after one, two and three sessions in 6 (30%), 11 (55%) and 3 (15%) patients, respectively. No procedure related complications were observed. CONCLUSION: Endoscopic repair of gastric leak after Roux-en-Y gastric bypass by using an acellular biomaterial is safe and effective. However two or three endoscopic sessions are usually needed.
Assuntos
Materiais Biocompatíveis/uso terapêutico , Endoscopia Gastrointestinal/métodos , Derivação Gástrica/efeitos adversos , Fístula Gástrica/cirurgia , Adulto , Feminino , Fístula Gástrica/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do TratamentoRESUMO
RACIONAL: A gastroplastia redutora à Capella, que combina técnicas restritiva e disabsortiva, é o procedimento bariátrico mais realizado no Brasil. Uma das complicações mais temidas desta operação é a fístula gastrocutânea que ocorre na linha de grampeamento vertical da neocâmara. O tratamento inicial consiste em drenagem adequada, suporte nutricional, bloqueio da produção de ácido e antibioticoterapia. Em 20 por cento a 30 por cento dos casos, a fístula tomará curso crônico. Nestes casos, vários tratamentos endoscópicos têm sido sugeridos. OBJETIVO: Descrever a técnica e os resultados do tratamento endoscópico das fístulas gastrocutâneas decorrentes de operações bariátricas através da aplicação de matriz acelular fibrogênica. MÉTODOS: Nesta série de casos, descrevem-se 25 pacientes com esta complicação tratados de maneira pioneira através da aplicação endoscópica de matriz acelular fibrogênica. O tempo entre o diagnóstico da fístula e a primeira sessão do tratamento endoscópico variou de 4 a 25 semanas, mediana: 7 semanas). RESULTADOS: Dos 25 pacientes, 20 (80 por cento) tiveram a fístula fechada pelo método. Seis deles com uma única sessão (30,0 por cento), 11 necessitaram de duas aplicações (55,0 por cento) e 3 pacientes, de uma terceira sessão (15,0 por cento) para a obliteração do trajeto fistuloso. Não houve complicações relacionadas ao procedimento. CONCLUSÃO: O uso de matriz fibrogênica para o tratamento endoscópico da fístula gástrica após operação de Capella é método seguro e eficaz, sendo sua principal limitação o número de sessões necessárias.
BACKGROUND: Roux-en-Y gastric bypass is one of the most commonly performed bariatric surgeries in Brazil. Gastric leaks are relatively uncommon and potentially dangerous complications. The initial management of gastric leaks consists in adequate drainage, nutritional support, antibiotics and acid suppression. In almost 30 percent of the cases the fistula will become chronic. AIM: A novel peroral endoscopic treatment of gastric leaks in Roux-en-Y gastric bypassed patients is presented. METHODS: An acellular biomaterial was endocopically placed in the fistulous orifice in order to promote healing and avoid surgery in 25 patients. The time between fistula diagnosis and endoscopic treatment varied from 4 to 25 weeks (median: 7 weeks). RESULTS: Endoscopic treatment was successful in 20 (80 percent) patients. Fistula closure was obtained after one, two and three sessions in 6 (30 percent), 11 (55 percent) and 3 (15 percent) patients, respectively. No procedure related complications were observed. CONCLUSION: Endoscopic repair of gastric leak after Roux-en-Y gastric bypass by using an acellular biomaterial is safe and effective. However two or three endoscopic sessions are usually needed.
Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Materiais Biocompatíveis/uso terapêutico , Endoscopia Gastrointestinal/métodos , Derivação Gástrica/efeitos adversos , Fístula Gástrica/cirurgia , Fístula Gástrica/etiologia , Resultado do TratamentoRESUMO
The final frontier in endoscopy is the peritoneal cavity which was recently reached through natural orifice transluminal endoscopic surgery (NOTES). Endoscopic perforation caused by NOTES has been the major challenge for this procedure because of the risk of peritonitis and consequent complications. We describe in a dog model the use of an overtube system, one of them with a balloon, to access the peritoneal cavity by NOTES. It permits direct access to the peritoneal cavity from the mouth and also allows the performance of a controlled perforation and provides conditions for a safe closure of the gastric wall.