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Cir. Urug ; 6(1): e302, jul. 2022. ilus
Article in Spanish | LILACS, UY-BNMED, BNUY | ID: biblio-1384411


Se comunica el primer reporte nacional del tratamiento de pancreatitis aguda recidivante mediante derivación Wirsung-yeyunal en pediatría. Se trata de un paciente con múltiples ingresos hospitalarios por episodios de pancreatitis, con complicaciones evolutivas de pseudoquistes pancreáticos, estenosis y litiasis del conducto de Wirsung. Se realiza derivación Wirsung-yeyunal por vía convencional con buena evolución posterior.

The first national report of the treatment of recurrent acute pancreatitis by means of Wirsung-jejunal diversion in pediatrics is communicated. This is a patient with multiple hospital admissions for episodes of pancreatitis, with evolutionary complications of pancreatic pseudocysts, stenosis, and Wirsung duct lithiasis. Wirsung-jejunal bypass was performed by conventional route with good subsequent evolution.

O primeiro relato nacional do tratamento de pancreatite aguda recorrente por derivação Wirsung-jejunal em pediatria é relatado. Trata-se de um paciente com múltiplas internações hospitalares por episódios de pancreatite, com complicações progressivas de pseudocistos pancreáticos, estenose e cálculos do ducto de Wirsung. A derivação Wirsung-jejunal foi realizada por via convencional com boa evolução posterior.

Humans , Female , Child , Pancreatic Ducts/surgery , Pancreatitis/surgery , Constriction, Pathologic/surgery , Pancreatic Ducts/diagnostic imaging , Pancreatitis/complications , Recurrence , Digestive System Surgical Procedures/methods , Acute Disease , Treatment Outcome , Constriction, Pathologic/diagnostic imaging , Lithiasis/diagnostic imaging
Rev. cuba. ortop. traumatol ; 36(1)abr. 2022. tab
Article in Spanish | LILACS-Express | CUMED, LILACS | ID: biblio-1409040


Introducción: La estenosis lumbar degenerativa altera la calidad de vida y disminuye la capacidad funcional en adultos mayores. La obesidad representa un problema de la salud mundial actual. Objetivo: Detallar los efectos de la obesidad sobre el riesgo quirúrgico, los índices de complicaciones posoperatorias y los resultados funcionales en pacientes adultos mayores sometidos a cirugía electiva por estenosis lumbar degenerativa. Métodos: Estudio prospectivo-descriptivo, con pacientes adultos mayores intervenidos quirúrgicamente por diagnóstico de estenosis lumbar degenerativa y valorados un año después. Resultados: 55 pacientes, 23 obesos, 32 no obesos; relación de sexos 1,5:1 masculino-femenino, mayor cantidad de espacios intervenidos, tiempo quirúrgico y pérdida de sangre en obesos. Los obesos presentaron un mayor número de complicaciones postquirúrgicas y resultados funcionales menos buenos. Conclusiones: La obesidad constituye un mayor riesgo quirúrgico, que, aunque la diferencia en los resultados clínicos no sea muy importante, provoca intervenciones más prolongadas y mayor incidencia de complicaciones quirúrgicas(AU)

Introduction: Degenerative lumbar stenosis alters quality of life and decreases functional capacity in older adults. Obesity represents a current global health problem. Objective: To detail the effects of obesity on surgical risk, postoperative complication rates, and functional outcomes in older patients undergoing elective surgery for degenerative lumbar stenosis. Methods: Prospective-descriptive study with elderly patients who underwent surgery for a diagnosis of degenerative lumbar stenosis, who were evaluated one year later. Results: Fifty-five patients, 23 obese, 32 non-obese; sex ratio 1.5:1 male-female, higher number of intervened spaces, surgical time and blood loss in obese subjects. The obese patients showed higher number of post-surgical complications and less good functional results. Conclusions: Obesity constitutes a higher surgical risk, even when the difference in clinical results is not very important, it causes longer interventions and higher incidence of surgical complications(AU)

Humans , Male , Female , Middle Aged , Aged , Postoperative Complications , Quality of Life , Constriction, Pathologic/surgery , Obesity , Epidemiology, Descriptive , Prospective Studies , Patient Outcome Assessment
Article in English | WPRIM | ID: wpr-929010


OBJECTIVES@#Due to the lack of large-sized pulmonary valved conduit products in clinical practice, hand-sewn expanded polytetrafluoroethylene (ePTFE) valved conduit has been used for right ventricular outflow tract (RVOT) reconstruction in many heart centers around the world. This study aims to summarize the early results of the ePTFE valved conduit and the sewing technology of the conduit in combination with the latest progress, and to provide a reference for the application of ePTFE valved conduit.@*METHODS@#A total of 21 patients using ePTFE valved conduit for RVOT reconstruction in the Second Xiangya Hospital, Central South University from October 2018 to October 2020 were prospectively enrolled in this study. The age at the implantation of the conduit was 4.3 to 43.8 (median 15.1) years old, with weight of (38.9±4.1) kg. In this cohort, 14 patients underwent re-reconstruction of RVOT, including 12 patients with pulmonary regurgitation at 6.3 to 31.0 (median 13.8) years after tetralogy of Fallot (TOF) repair, and 2 patients with failed bovine jugular vein conduit (BJVC). Seven patients underwent Ross operations. Among them, 3 were for aortic valve stenosis, 2 were for aortic regurgitation, and 2 were for both stenosis and regurgitation. The ePTFE valved conduits were standard hand-sewn during the surgery. The 3 leaflets were equal in size with arc-shaped lower edge of the valve sinus. The free edge of the valve leaflets was straight with the length of about 1 mm longer than the diameter. The height of the valve sinus was 4/5 of the diameter. The junction of the valve leaflet was 3/4 of the height of the sinus. The designed leaflets were then continuous non-penetrating sutured into the inner surface of Gore-Tex vessel to make a valved conduit. Valved conduits with diameter of 18, 20, and 22 mm were used in 2, 9, and 10 cases, respectively. The surgical results, postoperative recovery time, and serious complications were summarized, and the changes of postoperative cardiac function status and hemodynamic status of the conduits were investigated.@*RESULTS@#During the implantation of ePTFE valved conduit for RVOT reconstruction, 2 patients underwent mechanical mitral valve replacement with Ross operation, 2 patients with pulmonary regurgitation with repaired TOF underwent left and right pulmonary artery angioplasty, and 1 patient with failed BJVC underwent tricuspid valvuloplasty. The cardiopulmonary bypassing time for patients underwent re-reconstruction of RVOT was (130.9±16.9) min, with aorta clamping for 1 patient to repair the residual defect of the ventricular septum. The cardiopulmonary bypassing and aorta clamping time for Ross operation were (242.7±20.6) min and (145.6±10.5) min, respectively. The duration of postoperative ventilator assistance, intensive care unit stay, and hospital stay were 3.5 h to 7.7 d (median 17.1 h),11.2 h to 29.5 d (median 1.9 d), and 6.0 to 56.0 (median 13.0) d, respectively. All patients survived after discharge from hospital. The follow-up rate after discharge was 100% with median time at 15.0 (13.0 to 39.0) months. No death happened during the follow-up. One patient underwent stent implantation due to right coronary stenosis 2 months after Ross operation. One patient underwent balloon dilation due to right pulmonary artery ostium stenosis 1 year after re-reconstruction of RVOT. The cardiac function of all patients recovered to NYHA class I 6 months after operation. The peak pressure gradient across the valve measured by transthoracic echocardiography before discharge was (9.4±2.6) mmHg (1 mmHg=0.133 kPa), and (18.3±6.1) mmHg at the last follow-up. There was no significant increase in the gradient during the follow-up (P=0.134). No patient suffered from mild or more pulmonary regurgitation.@*CONCLUSIONS@#Hand-sewn ePTFE valved conduit is feasible for RVOT reconstruction. It is a promising material for RVOT reconstruction which can effectively meet clinical need. In our experience, the ePTFE valved conduit is simple to manufacture with satisfactory early outcomes.In the application of ePTFE valved conduit, attention should be paid to implantation indications and postoperative anticoagulation management, especially to the preparation details of the valved conduit, to obtain better function and durability of the conduit after implantation.

Adolescent , Animals , Cattle , Humans , Infant , Constriction, Pathologic/surgery , Heart Valve Prosthesis/adverse effects , Heart Valve Prosthesis Implantation/methods , Polytetrafluoroethylene , Prosthesis Design , Pulmonary Valve Insufficiency/surgery , Retrospective Studies , Treatment Outcome , Ventricular Outflow Obstruction/surgery
Rev. méd. Urug ; 38(1): e38114, 2022.
Article in Spanish | LILACS-Express | LILACS, UY-BNMED, BNUY | ID: biblio-1389668


Resumen: Introducción: el cáncer gástrico es la quinta neoplasia en frecuencia a nivel mundial. Su diagnóstico suele ser tardío. La estenosis gastroduodenal es una complicación frecuente, que condiciona el pronóstico y el tratamiento. Contamos con varias modalidades en cuanto a la paliación de esta complicación. Destacamos el tratamiento quirúrgico mediante derivación digestiva (gastroenteroanastomosis), y el tratamiento endoscópico, mediante colocación de un stent o prótesis metalica autoexpandible (PMA). El objetivo es exponer el caso clínico de una paciente portadora de un cáncer gástrico avanzado complicado con estenosis gastroduodenal en la cual se optó por la colocación de una PMA. La bibliografía comparativa entre ambas técnicas es controvertida. Existen estudios importantes que recomiendan la técnica quirúrgica frente a la endoscópica, y viceversa. Con este fin se han realizado múltiples trabajos. Los posibles beneficios de la paliación endoscópica son: menor estadía hospitalaria, rápido reintegro a la vía oral. El caso clínico expuesto por el contrario no se benefició de la menor estadía hospitalaria, en parte, por ser necesaria su internación por comorbilidades médicas. No presentó complicaciones posteriores relacionadas al procedimiento. Conclusiones: la elección de la técnica a utilizar deberá ser individualizada, teniendo en cuenta el paciente, sus comorbilidades, recursos técnicos, experiencia del personal, y recursos económicos. Se necesitan más estudios para demostrar beneficio de la técnica paliativa más adecuada.

Abstract: Introduction: gastric cancer is the fifth neoplasm in terms of global incidence and its diagnosis often comes late. Gastric outlet obstruction is a frequent complication that influences prognosis and treatment. Among the various modalities available for palliation of this complication, we stand out two: surgical treatment by means of a digestive derivation: gastrojejunostomy and endoscopic treatment, by placing a stent or a steel mesh self-expanding endoprosthesis (EMP). The study aims to present the clinical case of a patient carrier of advanced gastric cancer with gastric outlet obstruction, who was treated by placing a self-expandable metallic stent. Comparative bibliography of both techniques is controversial. A number of important studies recomend the surgical technique instead of endoscopic treatment, and viceversa. For this reason, several studies have been conducted. The potential benefits of endoscopic palliation are the following: shorter hospital stay, fast return to oral intake. However the clinical case presented did not benefit from a shorter hospital stay, since it required longer hospitalization, partly due to medical comorbilities. There were no complications after the procedure. Conclusions: the specific technique to treat the condition needs to be chosen for each individual case, considering the particular patient and his or her comorbilities, technical resources, the experience of the medical staff and economic resources. More studies are necessary to prove the benefits of the most appropriate palliative technique.

Resumo: Introdução: o câncer gástrico é a quinta neoplasia em frequência no mundo. Seu diagnóstico costuma ser tardio. A estenose gastroduodenal é uma complicação frequente, que determina o prognóstico e o tratamento. Existem várias modalidades quanto à paliação desta complicação entre os quais destacamos o tratamento cirúrgico por derivação digestiva: gastro enteroanastomose e o tratamento endoscópico, com colocação de Stent ou Prótese Metálica Autoexpansível (PMA). O objetivo deste trabalho é apresentar o caso clínico de um paciente com câncer gástrico avançado complicado por estenose gastroduodenal em que se optou pela colocação de PMA. A bibliografia comparativa entre as duas técnicas é controversa. Existem estudos importantes que preconizam a técnica cirúrgica em detrimento da endoscópica e vice-versa. Para isso, vários trabalhos foram realizados. Os possíveis benefícios da paliação endoscópica são: menor tempo de internação, rápida reintrodução à via oral. Neste caso o paciente não se beneficiou do menor tempo de internação, em parte, porque a internação foi necessária por comorbidades médicas. Não foram observadas complicações subsequentes relacionadas ao procedimento. Conclusões: a escolha da técnica a ser utilizada deve ser individualizada, levando em consideração o paciente, suas comorbidades, os recursos técnicos, a experiência da equipe e os recursos econômicos. Mais estudos são necessários para demonstrar o benefício da técnica paliativa mais adequada.

Stomach Neoplasms/complications , Constriction, Pathologic/surgery , Endoscopy, Gastrointestinal , Self Expandable Metallic Stents
Article in Chinese | WPRIM | ID: wpr-921823


To solve the problem of stent malapposition of intravascular stents, explore the design method of intravascular body-fitted stent structure and to establish an objective apposition evaluation method, the support and apposition performance of body-fitted stent in the stenotic vessels with different degrees of calcified plaque were simulated and analyzed. The traditional tube-mesh-like stent model was constructed by using computational aided design tool SolidWorks, and based on this model, the body-fitted stent model was designed by means of projection algorithm. Abaqus was used to simulate the crimping-expansion-recoil process of the two stents in the stenotic vessel with incompletely calcified plaque and completely calcified plaque respectively. A comprehensive method for apposition evaluation was proposed considering three aspects such as separation distance, fraction of non-contact area and residual volume. Compared with the traditional stent, the separation distances of the body-fitted stent in the incompletely calcified plaque model and the completely calcified plaque model were decreased by 21.5% and 22.0% respectively, the fractions of non-contact areas were decreased by 11.3% and 11.1% respectively, and the residual volumes were decreased by 93.1% and 92.5% respectively. The body-fitted stent improved the apposition performance and was effective in both incompletely and completely calcified plaque models. The established apposition performance evaluation method of stent considered more geometric factors, and the results were more comprehensive and objective.

Humans , Constriction, Pathologic/surgery , Plaque, Atherosclerotic , Stents
Article in Chinese | WPRIM | ID: wpr-878733


Median arcuate ligament syndrome(MALS)is compression of the celiac trunk by the median arcuate ligament.Median arcuate ligament release is the corner stone for the surgical treatment of MALS.Open surgery,laparoscopic surgery,and robot-assisted surgery have been developed,among which laparoscopic surgery has been proposed as the preferred approach in view of its minimal trauma and short hospital stay.Auxiliary celiac plexus neurolysis could further alleviate the patient's discomfort.Moreover,vascular reconstitution is of vital importance in the case of persistent stenosis in the celiac artery despite of median arcuate ligament decompression.Vascular reconstruction has satisfactory long-term patency rate,while endovascular treatment is less invasive.This article aims to summarize the consensuses and advances and shed light on the surgical treatment of MALS.

Humans , Celiac Artery/surgery , Constriction, Pathologic/surgery , Decompression, Surgical , Laparoscopy , Ligaments/surgery , Median Arcuate Ligament Syndrome/surgery
Int. braz. j. urol ; 44(4): 838-839, July-Aug. 2018.
Article in English | LILACS | ID: biblio-1040041


ABSTRACT Objectives: Buccal mucosa grafts and fascio-cutaneous flaps are frequently used in long anterior urethral strictures (1). The inlay and onlay buccal mucosa grafts are easier to perform, do not need urethral mobilization and generally have good long-term results (2-4). In the present video, we present a case where we used a double buccal mucosa graft technique in a simultaneous penile and bulbar urethral stricture. Materials and Methods: A 54 year-old male patient was submitted to appendectomy where a urethral catheter was used for two days in May 2015. Three months after surgery, the patient complained of acute urinary retention and a supra-pubic tube was indicated. Urethrocystography was performed two weeks later and showed strictures in penile and bulbar urethra with 3.5 cm and 3 cm in length respectively. Urethroplasty was proposed for the surgical treatment in this case. We used a perineal approach with a ventral sagittal urethrotomy in both strictures. Penile urethra stricture measuring 3.5 cm in length was observed and a free graft from the buccal mucosa was harvested and placed into the longitudinal incision in the dorsal urethra and fixed with interrupted suture as dorsal inlay. Bulbar urethra stricture measuring 3 cm was observed and a free graft from the buccal mucosa was harvested and placed into the longitudinal incision in the ventral urethra and fixed with interrupted suture as ventral onlay. The ventral urethrotomy was closed over a 16Fr Foley catheter and the skin incision was then closed in layers. Results: No intraoperative or postoperative complications occurred. The patient could achieve satisfactory voiding and no complication was seen during the six-month follow-up. Postoperative imaging demonstrated a widely patent urethra, and the mean peak flow was 12 mL/s. Conclusion: The BMG placement can be ventral, dorsal, lateral or combined dorsal and ventral BMG in the meeting of stricture but the first two are most common (5, 6). Ventral location provides the advantages of ease of exposure and good vascular supply by avoiding circumferential rotation of the urethra (7). Early success rates of dorsal and ventral onlay with BMG were 96 and 85%, respectively. However, long-term follow-up revealed essentially no difference in success rates (8-11). Anterior urethral stricture treatments are various, and comprehensive consideration should be given in selecting individualized treatment programs, which must be combined with the patient's stricture, length, complexity, and other factors. Traditionally, anastomotic procedures with transection and urethral excision are suggested for short bulbar strictures, while longer strictures are treated by patch graft urethroplasty preferably using the buccal mucosa as gold-standard material due to its histological characteristics. The current management for complex urethral strictures commonly uses open reconstruction with buccal mucosa urethroplasty. However, there are multiple situations whereby buccal mucosa is inadequate (pan-urethral stricture or prior buccal harvest) or inappropriate for utilization (heavy tobacco use or oral radiation). Multiple options exist for use as alternatives or adjuncts to buccal mucosa in complex urethral strictures (injectable antifibrotic agents, augmentation urethroplasty with skin flaps, lingual mucosa, colonic mucosa, and new developments in tissue engineering for urethral graft material). In the present case, our patient had two strictures and we chose to correct the first stricture with a dorsal graft and the bulbar stricture with a ventral graft because of our personal expertise. We can conclude that the double buccal mucosa graft is easier to perform and can be an option to repair multiple urethral strictures.

Humans , Male , Penile Diseases/surgery , Urethral Stricture/surgery , Skin Transplantation/methods , Mouth Mucosa/transplantation , Urologic Surgical Procedures, Male/methods , Surgical Flaps/transplantation , Reproducibility of Results , Treatment Outcome , Constriction, Pathologic/surgery , Middle Aged
Int. braz. j. urol ; 44(3): 624-628, May-June 2018. tab, graf
Article in English | LILACS | ID: biblio-954045


ABSTRACT Objective: To present our technique of ureteroileal bypass to treat uretero-enteric stric- tures in urinary diversion. Materials and Methods: One hundred and forty-one medical records were reviewed from patients submitted to radical cystectomy to treat muscle-invasive bladder cancer between 2013 and 2015. Twelve (8.5%) patients developed uretero-enteric anastomotic stricture during follow-up. Five patients were treated with endoscopic dilatation and double J placement. Four were treated surgically with standard terminal-lateral im- plantation. Three patients with uretero-enteric anastomotic stricture were treated at our institution by "ureteroileal bypass", one of them was treated with robotic surgery. Results: All patients had the diagnosis of uretero-enteric anastomotic stricture via computerized tomography and DTPA renal scan. Time between cystectomy and diag- nosis of uretero-enteric anastomotic stricture varied from five months to three years. Mean operative time was 120±17.9 minutes (98 to 142 min) and hospital stay was 3.3±0.62 days (3 to 4 days). Mean follow-up was 24±39.5 months (6 to 72 months). During follow-up, all patients were asymptomatic and presented improvement in ure-terohydronephrosis. Serum creatinine of all patients had been stable. Conclusions: Latero-lateral ureter re-implantation is feasible by open or even robotic surgery with positive results, reasonable operation time, and without complications.

Humans , Aged , Postoperative Complications/surgery , Ureter/surgery , Ureteral Obstruction/surgery , Urinary Diversion/adverse effects , Urinary Bladder/surgery , Ileum/surgery , Urinary Diversion/methods , Anastomosis, Surgical/adverse effects , Anastomosis, Surgical/methods , Urinary Catheterization/methods , Cystectomy/methods , Reproducibility of Results , Follow-Up Studies , Treatment Outcome , Constriction, Pathologic/surgery , Operative Time , Urinary Catheters , Length of Stay , Medical Illustration
Article in Chinese | WPRIM | ID: wpr-691476


OBJECTIVE@#To evaluate the effects of endoscopy-assisted sialodochoplasty for the treatment of severe sialoduct stenosis with concurrent megaducts.@*METHODS@#From Jul.2010 to Dec. 2016, 8 patients presenting with severe parotid duct stenosis and 3 patients with occlusion of the Wharton's duct underwent endoscopy-assisted sialodochoplasty.All these patients had concurrent severe ductal ectasiaand manifested a painful swelling of the involved salivary glands.The diameter of ectasia and length of stenosis of the sialoducts were measured preoperatively by sialography, computed tomography, or ultrasonography. The megaducts were opened transorally and sutured to the buccal or oral floor mucosa, therefore creating a neo-ostium. All the patients were followed up periodically after operation. The treatment effects were evaluated by clinical signs, sialogram and sialometry.@*RESULTS@#The length of the Stensen's duct stenosis was 5-12 mm, and the diameter of the concurrent ectasia was 8-16 mm. The length of the Wharton's duct stenosis was 10-20 mm, and the diameter of the concurrent ectasia was 6-8 mm.The neo-ostiums healed uneventfully 2 weeks after operation. The duration of the follow-up varied from 6 to 78 months (median: 24 months). Among the 8 patients with Stensen's duct stenosis, two experienced re-obliteration of the neo-ostium, but the buccal bulge and clinical symptoms disappeared; one reported recurrent clinical symptoms after initial alleviation, which could be controlled with self-massaging; the remaining 5 patients had satisfactory clinical results, i.e., disappearance of the obstruction symptoms and buccal bulge, patent ostium,clean saliva and improvement of the ductal ectasia on sialogram. Three patients with Wharton's duct occlusion were asymptomatic with clear saliva and patent ostium;two exhibited approximately normal appearance and one showed improvement of the sialogram.Sialometry was performed in 9 patients with patent neo-ostium of the involved glands,the resting saliva flow rate of the affected glands showed no differences compared with the normal side, and stimulated flow rate showed a significant increase, though less than the control side.The clinical results included good in 5 patients, fair in 4 patients, and poor in 2 patients, with a total effective rate of 82% (9/11).@*CONCLUSION@#Endoscopy-assisted sialodochoplasty appears to be effective and can be a viable option for patients presenting with severe sialoducts tenosis and concurrent ectasia.

Humans , Constriction, Pathologic/surgery , Endoscopy , Plastic Surgery Procedures , Salivary Ducts/surgery , Sialography
Rev. AMRIGS ; 60(4): 377-380, out.-dez. 2016. ilus
Article in Portuguese | LILACS | ID: biblio-847866


Introdução: A atresia de coana (AC) é a anomalia nasal congênita mais comum. Estima-se a incidência de 1 caso para cada 8000-10000 nascidos vivos. Relato do caso: Paciente feminina, 9 anos, com obstrução nasal em fossa nasal direita (FND) desde o nascimento. Apresentava roncos e apneia em vigência de infecção de via aérea superior. À rinoscopia anterior direita, secreção hialina abundante. À videonasoendoscopia flexível não foi possível visualizar cavum pela FND, observando-se estase de secreção em região posterior; à esquerda cavum livre, sem lesão expansiva. Tomografia de nariz e seios paranasais evidenciou atresia de coana mista à direita. Foi realizada cirurgia para correção da malformação. Após 30 dias, observou-se reestenose do cavum. Na reintervenção, a coana foi ampliada com remoção do osso palatino e do septo posterior, realizada dilatação com balão e posicionado molde de silicone. Realizada aplicação de Mitomicina. A remoção do molde foi feita em bloco cirúrgico após 42 dias, com permeabilidade coanal preservada. Nasofibroendoscopia após 6 meses mostrou fossas nasais pérvias. Discussão: Ainda há controvérsias na literatura quanto à efetividade das diferentes técnicas cirúrgicas e ao uso de stents e de agentes antineoplásicos no pós-operatório. Neste relato, a dilatação com balão pode ter contribuído para o sucesso da cirurgia, porém o molde foi fundamental para evitar a reestenose. Considerações finais: O uso do molde mostrou um excelente resultado nesta reintervenção de correção de atresia de coana. A baixa reação inflamatória e o sucesso do pós-operatório mostraram que esta é uma opção a ser utilizada para evitar a reestenose (AU)

Introduction: Choanal atresia (CA) is the most common congenital nasal anomaly. Its incidence is estimated as 1 case for every 8,000-10,000 live births. Case report: Female patient, 9 years old, with obstruction in the right nasal cavity (RNC) since birth. She presented snoring and apnea in the presence of upper airway infection. At right anterior rhinoscopy, abundant hyaline secretion. Flexible videonasoendoscopy failed to visualize cavum through RNC, with secretion stasis in posterior region; left cavum free, without expansive lesion. Tomography of the nose and paranasal sinuses revealed mixed choanal atresia on the right. Surgery was performed to correct the malformation. Thirty days later, restenosis of the cavum was observed. At reoperation the choana was enlarged with removal of the palatine bone and posterior septum, balloon dilatation was performed and a silicone cast was positioned. Mitomycin application was performed. Removal of the cast was done in surgical ward after 42 days, with preserved choanal permeability. Nasofibroscopy at 6 months postoperatively showed permeable nasal cavities. Discussion: There is still controversy in the literature regarding the effectiveness of different surgical techniques and the use of stents and anti-neoplastic agents in the postoperative period. In this report, balloon dilatation may have contributed to the success of the surgery, but the cast was crucial to avoid restenosis. Final considerations: The use of the cast had an excellent outcome in this re-intervention of choanal atresia correction. The low inflammatory reaction and postoperative success have shown that this is an effective option to be used to avoid restenosis (AU)

Humans , Female , Child , Choanal Atresia/surgery , Surgical Procedures, Operative/methods , Choanal Atresia/diagnosis , Constriction, Pathologic/surgery
Int. braz. j. urol ; 42(1): 154-159, Jan.-Feb. 2016. tab, graf
Article in English | LILACS | ID: lil-777325


ABSTRACT Aim To assess if calibration of the ureteropelvic junction (UPJ) using a high-pressure balloon inflated at the UPJ level in patients with suspected crossing vessels (CV) could differentiate between intrinsic and extrinsic stenosis prior to laparoscopic vascular hitch (VH). Materials and Methods We reviewed patients with UPJO diagnosed at childhood or adolescence without previous evidence of antenatal or infant hydronephrosis (10 patients). By cystoscopy, a high-pressure balloon is sited at the UPJ and the balloon inflated to 8-12 atm under radiological screening. We considered intrinsic PUJO to be present where a ‘waist’ was observed at the PUJ on inflation of the balloon and a laparoscopic dismembered pyeloplasty is performed When no ‘waist’ is observed we considered this to represent extrinsic stenosis and a laparoscopic VH was performed. Patients with absence of intrinsic PUJ stenosis documented with this method are included for the study. Results Six patients presented pure extrinsic stenosis. The mean age at presentation was 10.8 years. Mean duration of surgery was 99 min and mean hospital stay was 24 hours in all cases. We found no intraoperative or postoperative complications. All children remain symptoms free at a mean follow up of 14 months. Ultrasound and renogram improved in all cases. Conclusion When no ‘waist’ is observed we considered this to represent extrinsic stenosis and a laparoscopic VH was performed. In these patients, laparoscopic transposition of lower pole crossing vessels (‘vascular hitch’) may be a safe and reliable surgical technique.

Humans , Male , Female , Child , Adolescent , Ureteral Obstruction/surgery , Laparoscopy/methods , Angioplasty, Balloon/methods , Kidney Pelvis/surgery , Kidney Pelvis/blood supply , Pressure , Calibration , Reproducibility of Results , Retrospective Studies , Treatment Outcome , Angioplasty, Balloon/instrumentation , Constriction, Pathologic/surgery , Hydronephrosis/surgery
Braz. j. med. biol. res ; 49(9): e5182, 2016. tab, graf
Article in English | LILACS | ID: lil-788942


We used a computational fluid dynamics (CFD) model to study the inspiratory airflow profiles of patients with anterior nasal cavity stenosis who underwent curative surgery, by comparing pre- and postoperative airflow characteristics. Twenty patients with severe anterior nasal cavity stenosis, including one case of bilateral stenosis, underwent computed tomography (CT) scans for CFD modelling. The pre- and postoperative airflow characteristics of the nasal cavity were simulated and analyzed. The narrowest area of the nasal cavity in all 20 patients was located within the nasal valve area, and the mean cross-sectional area increased from 0.39 cm2 preoperative to 0.78 cm2 postoperative (P<0.01). Meanwhile, the mean airflow velocity in the nasal valve area decreased from 6.19 m/s to 2.88 m/s (P<0.01). Surgical restoration of the nasal symmetry in the bilateral nasal cavity reduced nasal resistance in the narrow sides from 0.24 Pa.s/mL to 0.11 Pa.s/mL (P<0.01). Numerical simulation of the nasal cavity in patients with anterior nasal cavity stenosis revealed structural changes and the resultant patterns of nasal airflow. Surgery achieved balanced bilateral nasal ventilation and decreased nasal resistance in the narrow region of the nasal cavity. The correction of nasal valve stenosis is not only indispensable for reducing nasal resistance, but also the key to obtain satisfactory curative effect.

Humans , Male , Female , Nasal Cavity/surgery , Nasal Obstruction/surgery , Respiratory Mechanics/physiology , Computer Simulation , Constriction, Pathologic/diagnostic imaging , Constriction, Pathologic/physiopathology , Constriction, Pathologic/surgery , Hydrodynamics , Imaging, Three-Dimensional , Nasal Cavity/diagnostic imaging , Nasal Cavity/physiopathology , Nasal Obstruction/diagnostic imaging , Nasal Obstruction/physiopathology
Int. braz. j. urol ; 41(4): 796-803, July-Aug. 2015. graf
Article in English | LILACS | ID: lil-763063


ABSTRACTBackground:Uretero-ileal anastomotic stricture (UIAS) is a urological complication after ileal neobladder, the initial management being endourological intervention. If this fails or stricture recurs, surgical intervention will be indicated.Design and Participants:From 1994 to 2013, 129 patients were treated for UIAS after unsuccessful endourological intervention. Unilateral UIAS was present in 101 patients, and bilateral in 28 patients; total procedures were 157. The previous ileal neobladder techniques were Hautmann neobladder, detubularized U shape, or spherical shape neobladder.Surgical procedures:Dipping technique was performed in 74 UIAS. Detour technique was done in 60 renal units. Ileal Bladder flap was indicated in 23 renal units. Each procedure ended with insertion of double J, abdominal drain, and indwelling catheter.Results:Follow-up was done for 12 to 36 months. Patency of the anastomosis was found in 91.7 % of cases. Thirteen patients (8.3%) underwent antegrade dilatation and insertion of double J.Conclusion:After endourological treatment for uretero-ileal anastomotic failure, basically three techniques may be indicated: dipping technique, detour technique, and ileal bladder flap. The indications are dependent on the length of the stenotic/dilated ureteral segment. Better results for long length of stenotic ureter are obtained with detour technique; for short length stenotic ureter dipping technique; when the stenotic segment is 5 cm or more with a short ureter, the ileal tube flap is indicated. The use of double J stent is mandatory in the majority of cases. Early intervention is the rule for protecting renal units from progressive loss of function.

Female , Humans , Male , Ileal Diseases/surgery , Ureteral Obstruction/surgery , Ureterostomy/methods , Urologic Surgical Procedures/methods , Anastomosis, Surgical/adverse effects , Anastomosis, Surgical/methods , Constriction, Pathologic/surgery , Cystectomy/adverse effects , Dilatation , Follow-Up Studies , Ileal Diseases/etiology , Postoperative Care , Surgical Flaps/surgery , Ureteral Obstruction/etiology , Urinary Bladder/surgery
Medicina (B.Aires) ; 75(3): 169-172, June 2015. ilus
Article in Spanish | LILACS | ID: lil-757099


El síndrome del ligamento arcuato medio (SLAM), o síndrome de compresión del tronco celíaco, es causado por la compresión extrínseca del ligamento arcuato medio, bandas fibrosas prominentes y tejido ganglionar periaórtico. En muchas ocasiones es asintomático, pero puede manifestarse con síntomas como dolor abdominal postprandial o durante el ejercicio, náuseas, vómitos y pérdida de peso. Mediante técnicas poco invasivas, como la ecografía doppler color y la angiotomografía preoperatoria, es posible obtener resultados diagnósticos comparables a los de la arteriografía. La cirugía constituye el tratamiento de elección, siendo la vía laparoscópica una técnica segura y eficaz Se presenta un caso sintomático atípico que requirió tratamiento quirúrgico laparoscópico, con mejoría clínica e imagenológica luego del procedimiento.

Median arcuate ligament syndrome (MALS), or celiac trunk compression syndrome, is caused by extrinsic compression of median arcuate ligament, prominent fibrous bands and periaortic nodal tissue. In many cases is asymptomatic, but it may manifests with symptoms such as postprandial abdominal pain or during exercise, nauseas, vomiting and weight loss. Trough less invasive diagnostic techniques, such as doppler ultrasound for screening and preoperative angiotomograhpy, it is possible to obtain good results, comparable to those with arteriography. Surgical treatment by laparoscopic approach is a safe and effective technique. A symptomatic case that required surgical treatment, a laparoscopic approach, with clinical and imaging improvement after the procedure, is presented.

Aged , Female , Humans , Celiac Artery/abnormalities , Constriction, Pathologic/diagnosis , Celiac Artery/surgery , Constriction, Pathologic/surgery , Laparoscopy
Rev. chil. cir ; 67(3): 306-308, jun. 2015. ilus
Article in Spanish | LILACS | ID: lil-747506


Background: Median arcuate ligament syndrome (SLAM) is caused by extrinsic compression of the celiac artery by fibrous bands of this ligament and periaortic lymph node tissue. Case report: We report a 59 years old man with a history of weight loss, epigastric pain and a postprandial murmur. The syndrome was diagnosed by CT angiography. The patient was operated, performing a midline laparotomy and releasing the extrinsic compression. An early and sustained remission of symptoms was achieved.

Introducción: El síndrome del ligamento arcuato medio (SLAM), es causado por la compresión extrínseca del tronco celíaco por bandas fibrosas de este ligamento y tejido ganglionar periaórtico. Caso clínico: Reportamos el caso de un hombre de 59 años con historia de baja de peso, dolor postprandial y soplo epigástrico, al cual se le diagnostica SLAM por medio de angioTC. Se realiza abordaje quirúrgico, con laparotomía media y liberación de la compresión extrínseca, logrando remisión de los síntomas de forma inmediata y sostenida. El SLAM es una causa infrecuente de dolor abdominal, requiere estudio por imágenes para su diagnóstico, la resolución quirúrgica constituye su tratamiento.

Humans , Male , Middle Aged , Celiac Artery/surgery , Celiac Artery/pathology , Constriction, Pathologic/surgery , Constriction, Pathologic/etiology , Ligaments/surgery , Ligaments/pathology , Angiography , Tomography, X-Ray Computed
Gut and Liver ; : 251-252, 2015.
Article in English | WPRIM | ID: wpr-190723


A 72-year-old man with jaundice by ampullary adenocarcinoma was treated at our hospital. For biliary decompression, a transpapillary, fully covered, self-expandable metal stent (FCSEMS) was deployed. Four days later, the patient developed acute cholangitis. Endoscopic carbon dioxide cholangiography revealed kinking of the common bile duct above the proximal end of the FCSEMS. A 7-F double-pigtail plastic stent was therefore placed through the FCSEMS to correct the kink, straightening the common bile duct (CBD) and improving cholangitis. This is the first report of a unique use of a double-pigtail plastic stent to correct CBD kinking. The placement of a double-pigtail plastic stent can correct CBD kinking, without requiring replacement or addition of a FCSEMS, and can lead to cost savings.

Aged , Humans , Male , Common Bile Duct/injuries , Constriction, Pathologic/surgery , Decompression, Surgical/instrumentation , Self Expandable Metallic Stents/adverse effects , Stents , Torsion Abnormality/surgery
Rev. chil. pediatr ; 85(5): 594-598, oct. 2014. ilus, tab
Article in Spanish | LILACS | ID: lil-731648


Introduction: The most common congenital malformations of the bile duct are biliary atresia and choledochal cyst. In addition, the most common liver anatomical variation is the right hepatic artery aberration. The goal of this study is to characterize a patient with this disease and propose the hepatoduodenal anastomosis as surgical treatment. Case report: One-month-old patient with suspected congenital biliary atresia due to progressive jaundice and acholia since birth. Liver tests consistent with a cholestatic pattern and brain MRI scan consistent with biliary atresia. Periods of decreased bilirubin and sporadic slight pigmentation of depositions were described. The surgical finding was a bile duct stricture due to a vascular ring caused by aberrant right hepatic artery. Resection of bile duct and hepatic-duodenal bypass were performed. The patient evolved satisfactorily from this condition. Conclusion: There are few reports of biliary obstruction due to vascular malformations. It is important to keep in mind that not all neonatal jaundice episodes are caused by biliary atresia or choledo-chal cyst. The clinical course, laboratory tests and imaging should be considered and in the case of suspicion, further exploration should take place.

Introducción: Las malformaciones congénitas de la vía biliar más frecuentes son la atresia de vías biliares y quiste de colédoco. Por otro lado, la variante anatómica hepática más común es la aberración de la arteria hepática derecha. El objetivo es caracterizar un paciente portador de esta patología y plantear la hepato-duodeno anastomosis como tratamiento quirúrgico. Caso clínico: Paciente de 1 mes de edad, con sospecha de Atresia de Vía Biliar congénita por ictericia progresiva y acolia desde recién nacido. Pruebas hepáticas concordantes con un patrón colestásico y resonancia magnética compatible con atresia de vías biliares. Evolucionó con períodos de descenso de bilirrubina y leve pigmentación, esporádica, de deposiciones. El hallazgo quirúrgico fue una estenosis crítica de vía biliar a nivel del conducto hepático común debido a un anillo vascular por una arteria hepática derecha aberrante. Se realizó una sección de vía biliar y una derivación hepato-duodenal. Evolucionó con una resolución completa de su patología. Conclusión: Existen pocos reportes de obstrucción de vía biliar por malformaciones vasculares. Es importante tener presente que no todas las ictericias neonatales son por atresia de vías biliares o quiste de colédoco. Se debe considerar la evolución clínica, laboratorio e imágenes, y si existen sospechas, explorar.

Female , Humans , Infant , Common Bile Duct Diseases/diagnosis , Constriction, Pathologic/diagnosis , Hepatic Artery/abnormalities , Vascular Diseases/diagnosis , Biliary Atresia/diagnosis , Common Bile Duct Diseases/etiology , Common Bile Duct Diseases/surgery , Constriction, Pathologic/etiology , Constriction, Pathologic/surgery , Hepatic Artery/surgery , Treatment Outcome , Vascular Diseases/complications , Vascular Diseases/surgery