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1.
Eur J Pediatr Surg ; 2024 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-38848757

RESUMO

INTRODUCTION: Anastomotic stricture (AS) is the second most common complication after esophageal atresia (EA) repair. We aimed to evaluate the data in the Turkish Esophageal Atresia Registry to determine the risk factors for AS development after EA repair in a large national cohort of patients. METHODS: The data between 2015 and 2021 were evaluated. Patients were enrolled into two groups according to the occurrence of AS. Patients with AS (AS group) and without AS (No-AS group) were compared according to demographic and operative features, postoperative intubation status, and postoperative complications, such as anastomotic leaks, fistula recanalization, and the presence of gastroesophageal reflux (GER). A multivariable logistic regression analysis was performed to define the risk factors for the development of AS after EA repair. RESULTS: Among the 713 cases, 144 patients (20.19%) were enrolled into the AS group, and 569 (79.81%) in the non-AS group. The multivariable logistic regression showed that ,being a term baby (OR 1.706; p = 0.006), having a birth weight over 2500 g (OR 1.72; p = 0.006), presence of GER (OR 5.267; p<0.001), or having a recurrent tracheoesophageal fistula (TEF, OR 4.363; p = 0.006) were the risk factors for the development of AS. CONCLUSIONS: The results of our national registry demonstrate that 20% of EA patients developed AS within their first year of life. In patients with early primary anastomosis, birth weight greater than 2500 g, and presence of GER were risk factors for developing AS. When patients with delayed anastomosis were included, in addition to the previous risk factors, being a term baby, and having recurrent TEF also became risk factors.

2.
Eur J Pediatr Surg ; 34(1): 44-49, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37406676

RESUMO

INTRODUCTION: Coexistent congenital duodenal obstruction and esophageal atresia (EA) is known to have significant morbidity and mortality. Management strategies are not well-defined for this association. The data from the Turkish EA registry is evaluated. MATERIALS AND METHODS: A database search was done for the years 2015 to 2022. RESULTS: Among 857 EA patients, 31 (3.6%) had congenital duodenal obstruction. The mean birth weight was 2,104 (± 457) g with 6 babies weighing less than 1,500 g. Twenty-six (84%) had type C EA. The duodenal obstruction was complete in 15 patients and partial in 16. Other anomalies were detected in 27 (87%) patients. VACTERL-H was present in 15 (48%), anorectal malformation in 10 (32%), a major cardiac malformation in 6 (19%), and trisomy-21 in 3 (10%). Duodenal obstruction diagnosis was delayed in 10 (32%) babies for a median of 7.5 (1-109) days. Diagnosis for esophageal pathologies was delayed in 2. Among 19 babies with a simultaneous diagnosis, 1 died without surgery, 6 underwent triple repair for tracheoesophageal fistula (TEF), EA, and duodenal obstruction, and 3 for TEF and duodenal obstruction in the same session. A staged repair was planned in the remaining 9 patients. In total, 15 (48%) patients received a gastrostomy, the indication was long-gap EA in 8. Twenty-five (77%) patients survived. The cause of mortality was sepsis (n = 3) and major cardiac malformations (n = 3). CONCLUSION: Congenital duodenal obstruction associated with EA is a complex problem. Delayed diagnosis is common. Management strategies regarding single-stage repairs or gastrostomy insertions vary notably depending on the patient characteristics and institutional preferences.


Assuntos
Obstrução Duodenal , Atresia Esofágica , Cardiopatias Congênitas , Fístula Traqueoesofágica , Lactente , Humanos , Atresia Esofágica/complicações , Atresia Esofágica/diagnóstico , Atresia Esofágica/cirurgia , Obstrução Duodenal/diagnóstico , Obstrução Duodenal/etiologia , Obstrução Duodenal/cirurgia , Fístula Traqueoesofágica/cirurgia , Resultado do Tratamento
3.
Pediatr Pulmonol ; 58(3): 763-771, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36398363

RESUMO

OBJECTIVES: Postoperative ventilatory strategies in patients with esophageal atresia (EA) and tracheoesophageal fistula (TEF) may have an impact on early postoperative complications. Our national Esophageal Atresia Registry was evaluated to define a possible relationship between the type and duration of respiratory support on postoperative complications and outcome. STUDY DESIGN: Among the data registered by 31 centers between 2015 and 2021, patients with esophago-esophageal anastomosis (EEA)/tracheoesophageal fistula (TEF) were divided into two groups; invasive ventilatory support (IV) and noninvasive ventilatory support and/or oxygen support (NIV-OS). The demographic findings, gestational age, type of atresia, associated anomalies, and genetic malformations were evaluated. We compared the type of repair, gap length, chest tube insertion, follow-up times, tensioned anastomosis, postoperative complications, esophageal dilatations, respiratory problems requiring treatment after the operation, and mortality rates. RESULTS: Among 650 registered patients, 502 patients with EEA/TEF repair included the study. Four hundred and seventy of patients require IV and 32 of them had NIV-OS treatment. The IV group had lower mean birth weights and higher incidence of respiratory problems when compared to NIV-OS group. Also, NIV-OS group had significantly higher incidence of associated anomalies than IV groups. The rates of postoperative complications and mortality were not different between the IV and NIV-OS groups. CONCLUSION: We demonstrated that patients who required invasive ventilation had a higher incidence of low birth weight and respiratory morbidity. We found no relation between mode of postoperative ventilation and surgical complications. Randomized controlled trials and clinical guidelines are needed to define the best type of ventilation strategy in children with EA/TEF.


Assuntos
Atresia Esofágica , Fístula Traqueoesofágica , Criança , Humanos , Atresia Esofágica/complicações , Fístula Traqueoesofágica/complicações , Resultado do Tratamento , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos
4.
J Laparoendosc Adv Surg Tech A ; 31(5): 584-588, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33605779

RESUMO

Background: Temporary diverting enterostomy might be the initial step while treating gastrointestinal disorders in infants. According to the level of the stoma, calorie, fluid, and electrolyte imbalance might occur. Totally parenteral nutrition (TPN), parenteral fluid, and electrolyte balancing are the choice of support. Owing to limitations of both, distal refeeding (DR) has been suggested as an alternative. However, in English literature, there is no recommended technique for how DR should apply. This article is aimed at evaluating our innovative DR approach, which was not reported earlier. Materials and Methods: Between 2015 and 2019, patients on whom DR was performed by a cuffed silicon-based tunneled catheter were obtained. Results: A total of 8 patients aged between 1 day and 7.5 years were included. Dislocation of the catheter and skin erosion were the minor complications that were observed. None of them necessitated TPN and vascular access. Moreover, patients could be discharged and were fully fed orally by their guardian at home, and any problem was observed during survival. Conclusion: Consequently, patients did not necessitate vascular access or TPN. They were all fully fed orally, and DR could be performed without a failure to thrive. Therefore, we believe that tunneled catheter DR is a safe and reliable method in infants. Institutional Review Board at Eskisehir Osmangazi University (Protocol no. 07/01/2020-26).


Assuntos
Cateterismo/métodos , Nutrição Enteral/métodos , Enterostomia , Intestinos/cirurgia , Cateterismo/instrumentação , Catéteres , Criança , Pré-Escolar , Nutrição Enteral/instrumentação , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Avaliação de Resultados em Cuidados de Saúde , Estudos Retrospectivos , Estomas Cirúrgicos
5.
J Pediatr Surg ; 56(11): 1940-1943, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33353739

RESUMO

AIM: Preservation of the azygos vein (AV) maintains normal venous drainage of the mediastinum and decreases postoperative congestion. The modification of esophageal atresia (EA) repair by preserving AV may prevent postoperative complications and may lead to better outcomes. The data from the Turkish Esophageal Atresia Registry (TEAR) were evaluated to define the effect of AV preservation on postoperative complications of patients with EA. METHODS: Data from TEAR for a period of five years were evaluated. Patients were enrolled into two groups according to the preservation of AV. Patients with divided (DAV) and preserved AV (PAV) were evaluated for demographic and operative features and postoperative complications for the first year of life. The DAV and PAV groups were compared according to the postoperative complications, such as fistula recanalization, symptomatic strictures, anastomotic leaks, total number of esophageal dilatations, and anti-reflux surgery. In addition, respiratory problems, which required treatment, were compared between groups. RESULTS: Among 502 registered patients; the data from 315 patients with the information of AV ligation were included. The male female ratio of DAV (n = 271) and PAV (n = 44) groups were 150:121 and 21:23, respectively (p > 0.05). The mean body weight, height, gestational age, and associated anomalies were similar in both groups (p > 0.05). The esophageal repair with thoracotomy was significantly higher in DAV group, when compared to the PAV group (p < 0.05). The rates of primary anastomosis and tensioned anastomosis were similar in both groups (p > 0.05). There was no difference between DAV and PAV groups for anastomotic leaks, symptomatic anastomotic strictures, fistula recanalization, and the requirement for anti-reflux surgery (p > 0.05). The rate of respiratory problems, which required treatment, was significantly higher in the DAV group (p < 0.05) CONCLUSION: The data in the TEAR demonstrated that preserving the AV during EA repair led to no significant advantage on postoperative complications, with exception of respiratory problems. AV should be preserved as much as possible to maintain a normal mediastinal anatomy and to avoid respiratory complications.


Assuntos
Atresia Esofágica , Fístula Traqueoesofágica , Anastomose Cirúrgica , Veia Ázigos/cirurgia , Atresia Esofágica/cirurgia , Feminino , Humanos , Masculino , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Sistema de Registros , Estudos Retrospectivos , Fístula Traqueoesofágica/cirurgia , Resultado do Tratamento
6.
Eur J Pediatr Surg ; 31(3): 226-235, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32629496

RESUMO

INTRODUCTION: The data of the Turkish Esophageal Atresia Registry (TEAR) was evaluated to define the outcome of very low birth weight (VLBW) and low BW (LWB) infants with esophageal atresia (EA). MATERIALS AND METHODS: The data registered by 24 centers between 2014 and 2018 were evaluated for demographic features, prenatal findings, associated anomalies, surgical treatment, and outcome. Patients were enrolled in three groups according to their BWs (VLBW <1,500 g), LWB = 1,500-2,500 g), and normal BW (NBW; >2,500 g). RESULTS: Among the 389 cases, there were 37 patients (9.5%) in the VLBW group, 165 patients (42.4%) in the LBW group, and 187 patients (48.1%) in the NBW group. Prenatal diagnosis rates were similar among the three groups (29.7, 34.5, and 24.6%, respectively). The standard primary anastomosis was achieved at a significantly higher rate in NWB cases than in the other groups (p < 0.05). In patients with tracheoesophageal fistula (TEF), patients of the NBW group had significantly higher rates of full oral feedings, when compared with VLBW and LBW cases (p < 0.05). At the end of the first year, when we evaluate all patients, the number of cases with fistula recanalization and esophageal anastomotic strictures (AS) requiring esophageal dilatation was similar among the groups. The weight and height measurements at 6 months and 1 year of age of the survivors were similar in all the groups. The overall mortality rate was significantly higher in the VLBW and LBW groups, when compared with the NBW patients, even in patients with tension-free anastomosis (p < 0.05). The incidence of the associated anomalies was 90.6% in cases with mortality, which was significantly higher than in survivors (59.6%; p < 0.05). According to Spitz's classification, the survival rate was 87.1% in class I, 55.3% in class II, and 16.7% in class III. The most common causes of mortality were associated with cardiovascular diseases, pneumonia, and sepsis. CONCLUSION: The national data of TEAR demonstrates that the developmental and feeding parameters are better in NBW patients. Although VLBW patients have higher risk of developing fistula canalization than the LBW and NBW groups, long-term complications, such as anastomotic strictures, weight, and height values, after 1 year are similar in both groups. According to our results, associated anomalies and LBWs are still significant risk factors for mortality in cases with EA.


Assuntos
Atresia Esofágica/cirurgia , Esofagoplastia , Recém-Nascido de Baixo Peso , Doenças do Prematuro/cirurgia , Complicações Pós-Operatórias/etiologia , Atresia Esofágica/diagnóstico , Atresia Esofágica/mortalidade , Esofagoplastia/métodos , Feminino , Seguimentos , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Doenças do Prematuro/diagnóstico , Doenças do Prematuro/mortalidade , Recém-Nascido de muito Baixo Peso , Masculino , Complicações Pós-Operatórias/epidemiologia , Sistema de Registros , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento , Turquia/epidemiologia
7.
North Clin Istanb ; 6(2): 171-175, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31297485

RESUMO

OBJECTIVE: Hiatus hernia is frequent in adults and rare in children; congenital hiatus hernia is even rarer. In this study, we describe a group of infants with congenital hiatus hernia and discuss its management. METHODS: Records of patients (male: 3, female: 4) who were diagnosed with congenital hiatus hernia between 2010 and 2016 were extracted. Demographic data, presenting symptoms, diagnostic investigations, operative details, postoperative follow-up, and early and late postoperative complications were evaluated retrospectively. RESULTS: Four patients were female and three were male. One patient was diagnosed prenatally while the mean age at diagnosis for others was 18.6 months. Four patients had type IV hernia, 2 had type III hernia, and one had type I hernia. The diagnosis was confirmed by chest X-ray, computerized tomography (CT) and/or upper gastrointestinal series. The hiatal repair was done in all patients either by laparotomy or laparoscopy. During the procedure, 2 patients had Nissen fundoplication and 3 patients had Thal fundoplication. Recurrence of hernia occurred in the 2 patients who had Thal fundoplication. CONCLUSION: Recurrence of sliding hernias with Thal fundoplication seem more frequent in the series. If the esophagogastric junction is present in the thorax, mediastinal dissection of the esophagus may be required to achieve a good abdominal esophagus structure, which will prevent a recurrence.

8.
Case Rep Endocrinol ; 2017: 1689039, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28133554

RESUMO

Horner syndrome (HS), caused by an interruption in the oculosympathetic pathway, is characterised by myosis, ipsilateral blepharoptosis, enophthalmos, facial anhydrosis, and vascular dilation of the lateral part of the face. HS is a rare complication of thyroidectomy. A 15-year-old female patient presented with solitary solid and large nodule in the right thyroid lobe. Ultrasound-guided fine-needle aspiration was performed and the cytological examination results were undefined. The patient underwent a total thyroidectomy. On postoperative day 2, she developed right-sided myosis and upper eyelid ptosis. HS was diagnosed. Interestingly, the patient exhibited an incomplete clinical syndrome with the absence of vasomotor symptoms. We herein report a case of HS in a 15-year-old female patient after total thyroidectomy. The possible causes of HS were ischaemia-induced nerve damage and stretching of the cervical sympathetic chain by the retractor during thyroidectomy. Clinicians should be aware of the possibility of this rare but important surgical complication.

9.
European J Pediatr Surg Rep ; 3(2): 78-81, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26788453

RESUMO

Fibroepithelial polyps are a rare underlying reason of ureteropelvic junction obstruction. In the past, open surgery was the only option. However, due to development of minimal invasive technics, treatment alternatives have been changed. Resection by laparoscopy or endoscopy, laser fulguration and/or percutaneous resection are recommended in children and adults. Here, we present a 10-year-old boy with severe left hydronephrosis due to fibroepithelial polyp close to the ureteropelvic junction and our laparoscopic approach.

10.
J Cancer Res Clin Oncol ; 138(6): 971-7, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22358303

RESUMO

PURPOSE: To determine the characteristics and outcome of patients with refractory gestational trophoblastic neoplasia (GTN) after primary chemotherapy (CTx). METHODS: The outcome of low- and high-risk patients with refractory GTN (n = 14, 37%) was compared to those with non-refractory GTN (n = 24, 63%). Methotrexate treatment was used for patients with low-risk disease and EMA/CO for patients with high-risk disease. RESULTS: Median follow-up time was 53 months (range 1-173 months). All non-refractory patients and 11 refractory patients (79%) survived (p = 0.015). Factors related to resistance to primary CTx was age (p = 0.012), duration between causal pregnancy and initial treatment (p = 0.003), surgery (p = 0.014), hCG level before CTx (p = 0.09) and half-life of hCG (p = 0.061). Six out of 10 low-risk refractory patients treated with EMA/CO regimen in the second-line setting had been followed by no evidence of disease. Nine of 38 (24%) patients underwent surgery (TAH ± BSO) for GTN. All of the patients treated with surgery were in the non-refractory group, but none of refractory patients underwent surgery (p = 0.014). CONCLUSIONS: Surgery and EMA/CO regimen are one of the main factors that play a role in the management of refractory low-risk GTN.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Doença Trofoblástica Gestacional/tratamento farmacológico , Doença Trofoblástica Gestacional/cirurgia , Neoplasias Uterinas/tratamento farmacológico , Neoplasias Uterinas/cirurgia , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Gonadotropina Coriônica/sangue , Ciclofosfamida/administração & dosagem , Dactinomicina/administração & dosagem , Etoposídeo/administração & dosagem , Feminino , Seguimentos , Doença Trofoblástica Gestacional/sangue , Meia-Vida , Humanos , Metotrexato/administração & dosagem , Metotrexato/uso terapêutico , Pessoa de Meia-Idade , Gravidez , Estudos Retrospectivos , Neoplasias Uterinas/sangue , Vincristina/administração & dosagem , Adulto Jovem
11.
Radiol Case Rep ; 7(3): 685, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-27326296

RESUMO

A woman was referred to our hospital with the working diagnosis of ovarian malignancy. While she was undergoing both clinical and radiological evaluation and monitoring, a decrease in the size of the ovarian mass was noted. After further evaluation via laboratory findings and tissue biopsy, we arrived at a final diagnosis of sarcoidosis, which is very unusual in the ovaries. Our case places emphasis on the importance of considering rare entities, such as ovarian sarcoidosis, and the importance of radiologic changes in solid ovarian mass dimensions over time.

12.
Pediatr Surg Int ; 24(6): 695-8, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18408938

RESUMO

Prevention of postoperative pain in children is one of the most important objectives of the anesthesiologist. Opioids have been used as an analgesic for postoperative pain in children for many years. Tramadol has both opioid and monoaminergic agonist actions. The aim of the study was to determine if the analgesic potency and occurrence of adverse effects of tramadol differ from pethidine when administered to children. A total of 110 healthy children, aged 2-12 years, scheduled for elective lower abdominal surgery were randomized to receive either pethidine 1 mg/kg (Group I, n = 60) or tramadol 2 mg/kg (Group II, n = 50) for postoperative pain after anesthesia induction. Pain intensity, adverse effects, heart rate, and systolic and diastolic blood pressure were recorded at regular intervals. The mean pain scores on postoperative 24 h were significantly greater with tramadol than with pethidine. Sedation scores, heart rate and systolic and diastolic blood pressure showed no significant differences between the groups. We conclude that pethidine and tramadol are effective in providing analgesia in pediatric patients, but pethidine provided better postoperative analgesia than tramadol. Changes in blood pressure, heart rate and arterial oxygen saturation were minimal and were similar in both drugs.


Assuntos
Dor Pós-Operatória/prevenção & controle , Analgésicos Opioides , Pré-Escolar , Hemodinâmica , Humanos , Meperidina , Estudos Prospectivos , Tramadol
14.
Pediatr Surg Int ; 23(2): 135-9, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17043873

RESUMO

A retrospective study was performed to determine the predisposing factors associated with the complications of ingested gastrointestinal (GI) tract foreign bodies (FBs) in children who had surgical or endoscopic removal. The study was performed in 161 children who had endoscopic or surgical removal. The clinical data were evaluated in two groups. In groups I and II, respectively, 135 patients with no complications and 26 patients with complications were analyzed. The relative risk analysis was performed for the risk factors. The number of the patients with an accurate history and the radiopaque FBs was significantly higher in group I. Metal, especially sharp objects, and food plugs obstructing a diseased esophagus were the most common FBs found in group II. The majority of the FBs of both groups were entrapped in esophagus, the number of the FBs distal to esophagus was significantly higher and duration of lodgment was significantly longer in group II. Esophageal abrasion, laceration and bleeding, complete esophageal obstruction, caustic injury, severe esophageal stricture, laryngeal edema, recurrent aspiration pneumonia, loss of weight, intestinal perforation, constipation and intestinal obstruction were determined as complications. The relative risk was >1 for duration of lodgment more than 24 h, for sharp or pointed objects, button batteries, nonopaque objects, diseased esophagus and for the objects located below the upper third of esophagus. Type, radiopacity, location and duration of the ingested GI tract FB determine the outcome. A delayed diagnosis is the most significant factor increasing the risk of complications. Physician must maintain a high index of suspicion and a more extensive history; physical examination and radiodiagnostic investigation should be obtained in suspected cases.


Assuntos
Corpos Estranhos/complicações , Corpos Estranhos/terapia , Trato Gastrointestinal , Adolescente , Causalidade , Criança , Pré-Escolar , Procedimentos Cirúrgicos do Sistema Digestório , Endoscopia Gastrointestinal , Doenças do Esôfago/etiologia , Esofagoscopia , Esôfago , Corpos Estranhos/cirurgia , Humanos , Lactente , Estudos Retrospectivos , Medição de Risco
17.
Korean J Parasitol ; 41(4): 239-42, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14699265

RESUMO

Strongyloides stercoralis (SS) is an intestinal nematode that is mainly endemic in tropical and subtropical regions and sporadic in temperate zones. SS infection frequently occurs in people who have hematologic malignancies, HIV infection and in individuals undergoing immunosuppressive therapy. In this study, we report a 12- year-old immunocompetent boy who was admitted to our hospital with acute abdomen. Laboratory evaluation showed strongyloidiasis, amebiasis and giardiasis. Clinical and laboratory findings immediately improved with albendazole therapy. Therefore, when diarrhea with signs of acute abdomen is observed, stool examinations should be done for enteroparasitosis. This approach will prevent misdiagnosis as acute abdomen. Complete clinical improvement is possible by medical therapy without surgical intervention.


Assuntos
Abdome Agudo/etiologia , Amebíase/complicações , Giardíase/complicações , Strongyloides stercoralis , Estrongiloidíase/complicações , Animais , Criança , Humanos , Imunocompetência , Masculino , Estrongiloidíase/parasitologia
18.
Tani Girisim Radyol ; 9(3): 388-90, 2003 Sep.
Artigo em Turco | MEDLINE | ID: mdl-14661610

RESUMO

Inguinal and scrotal hernias are two most common congenital anomalies observed by clinicians. The possibility of ovarian torsion following recurrent inguinal hernia is well known. Ultrasound examination of the inguinal region of a female infant showed a spherical, enlarged ovary with multiple tiny cysts. After the diagnosis of ovarian torsion, the patient underwent oopherectomy. It is possible to diagnose inguinal emergencies by high resolution ultrasonography.


Assuntos
Doenças Ovarianas/diagnóstico por imagem , Diagnóstico Diferencial , Feminino , Humanos , Lactente , Doenças Ovarianas/cirurgia , Anormalidade Torcional/diagnóstico por imagem , Anormalidade Torcional/cirurgia , Ultrassonografia Doppler em Cores
19.
J Pediatr Surg ; 38(11): 1591-5, 2003 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-14614706

RESUMO

PURPOSE: The aim of this study was to evaluate the effect of allopurinol, methylene blue, and a monoclonal antibody to the adhesion molecule ICAM-1 in intestinal ischemia and reperfusion injury. METHODS: The rats were divided into 5 groups. CG (n = 8) was untreated controls, SISG (n = 11) received sterile isotonic saline solution, ICAMG (n = 12) received a monoclonal antibody to rat ICAM-1, ALLOG (n = 12) received allopurinol, and MBG (n = 14) received methylene blue. Intestinal ischemia was performed for 60 minutes followed by 60 minutes of reperfusion. The agents were injected 10 minutes before the reperfusion to animals. After 60 minutes of reperfusion, the plasma samples for myeloperoxidase (MPO) activity, tumor necrosis factor alpha (TNF-alpha) and uric acid levels, and the intestinal biopsies of ileum and jejunum for histopathologic examination were taken. RESULTS: The mucosal damage was attenuated, and TNF-alpha level significantly decreased in ALLOG and ICAMG compared with SISG. The MPO activity was the lowest in ICAMG, and uric acid level was significantly decreased in ALLOG compared with the other groups. Methylene blue decreased TNF-alpha response to reperfusion injury but significantly increased the grade of the mucosal damage and the MPO activity. CONCLUSIONS: This study shows that prereperfusion application of allopurinol and monoclonal antibody to the adhesion molecule ICAM-1 may attenuate the damage caused by intestinal ischemia and reperfusion, but the different time-points for application, the effects observed in the different ischemia and reperfusion durations, and the long-term results also should be investigated in the same experimental model before the final conclusion. Methylene blue was not effective to prevent or attenuate the intestinal tissue injury, but because this was the first study examining the effect of methylene blue on intestinal reperfusion injury, further studies with the different doses, ischemic duration, and application times will be needed.


Assuntos
Alopurinol/uso terapêutico , Anticorpos Monoclonais/uso terapêutico , Molécula 1 de Adesão Intercelular/imunologia , Intestinos/irrigação sanguínea , Isquemia/tratamento farmacológico , Azul de Metileno/uso terapêutico , Traumatismo por Reperfusão/prevenção & controle , Animais , Anticorpos Monoclonais/imunologia , Avaliação Pré-Clínica de Medicamentos , Íleo/patologia , Isquemia/metabolismo , Jejuno/patologia , Masculino , Peroxidase/sangue , Ratos , Ratos Sprague-Dawley , Traumatismo por Reperfusão/metabolismo , Fator de Necrose Tumoral alfa/análise , Ácido Úrico/sangue
20.
Int J Colorectal Dis ; 18(5): 455-8, 2003 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-12750931

RESUMO

BACKGROUND: Neutropenic enterocolitis is a devastating bowel wall inflammation in patients with protracted neutropenia. The approach for diagnosis and treatment is still controversial, and it is difficult and challenging to decide on what should be the next step in the management. CASE PRESENTATION: We report a 10-year-old boy who developed neutropenic enterocolitis in the course of the conservative treatment for aplastic anemia. Oral mucositis and the perianal fissure with an ulcer were important indicators for what was happening on the colonic mucosa. Colonoscopy and biopsy confirmed the diagnosis. A fast recovery was achieved with a right hemicolectomy and ileostomy. CONCLUSION: Retrospective analysis of the long-term follow-up of our patient suggests that defunctioning the colon by ileostomy breaks the vicious circle between neutropenia and bowel wall inflammation, and an early surgical intervention could be considered as an adjunctive approach to the conservative management of persistent cases.


Assuntos
Colectomia/métodos , Enterocolite Neutropênica/cirurgia , Ileostomia/métodos , Anemia Aplástica/complicações , Criança , Enterocolite Neutropênica/diagnóstico , Enterocolite Neutropênica/etiologia , Humanos , Masculino , Resultado do Tratamento
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