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Biomedical subjects

Saleem Islam

Publications and source records attributed to Saleem Islam.

16 recordsLinked to original sources

Laparotomy versus peritoneal drainage for necrotizing enterocolitis and perforation.

BACKGROUND: Perforated necrotizing enterocolitis is a major cause of morbidity and mortality in premature infants, and the optimal treatment is uncertain. We designed this multicenter randomized trial to compare outcomes of primary peritoneal drainage with laparotomy and bowel resection in preterm infants with perforated necrotizing enterocolitis. METHODS: We randomly assigned 117 preterm infants (delivered before 34 weeks of gestation) with birth weights less than 1500 g and perforated necrotizing enterocolitis at 15 pediatric centers to undergo primary peritoneal drainage or laparotomy with bowel resection. Postoperative care was standardized. The primary outcome was survival at 90 days postoperatively. Secondary outcomes included dependence on parenteral nutrition 90 days postoperatively and length of hospital stay. RESULTS: At 90 days postoperatively, 19 of 55 infants assigned to primary peritoneal drainage had died (34.5 percent), as compared with 22 of 62 infants assigned to laparotomy (35.5 percent, P=0.92). The percentages of infants who depended on total parenteral nutrition were 17 of 36 (47.2 percent) in the peritoneal-drainage group and 16 of 40 (40.0 percent) in the laparotomy group (P=0.53). The mean (+/-SD) length of hospitalization for the 76 infants who were alive 90 days after operation was similar in the primary peritoneal-drainage and laparotomy groups (126+/-58 days and 116+/-56 days, respectively; P=0.43). Subgroup analyses stratified according to the presence or absence of radiographic evidence of extensive necrotizing enterocolitis (pneumatosis intestinalis), gestational age of less than 25 weeks, and serum pH less than 7.30 at presentation showed no significant advantage of either treatment in any group. CONCLUSIONS: The type of operation performed for perforated necrotizing enterocolitis does not influence survival or other clinically important early outcomes in preterm infants. (ClinicalTrials.gov number, NCT00252681.).

Birth Weight↗

Midgut abnormalities.

Explore the source record for details and available documents.

Diagnostic Techniques, Digestive System↗

Antiangiogenic therapy for a large splenic hemangioma.

Hemangiomas involving the spleen are rare and seldom symptomatic. Treatment options for large lesions usually consist of splenectomy, embolization, or both. Antiangiogenic treatment has not been reported previously as an effective alternative for this type of lesion. We report our experience of successfully using glucocorticoids in an infant with a large hemangioma of the spleen.

Angiogenesis Inhibitors↗

Congenital diaphragmatic hernia: searching for answers.

BACKGROUND: Pulmonary hypoplasia and hypertension are the primary causes of morbidity and mortality in infants with congenital diaphragmatic hernia (CDH). At present, the origin of CDH and the causes of pulmonary hypoplasia and hypertension are unknown. DATA SOURCES: This article reviews the available published data regarding the origin of CDH and the pathogenesis of the associated pulmonary hypertension and hypoplasia. These investigations have employed human tissues as well as two types of CDH animal models. CONCLUSIONS: Investigations performed to date have not yet provided definitive answers regarding the pathogenesis of CDH. However, they have yielded many new and exciting discoveries and several opportunities for intervention. Ongoing research should open new possibilities to improve the outcome for these unfortunate babies with CDH.

Animals↗

Failure of cholecystokinin-octapeptide to prevent TPN-associated gallstone disease.

PURPOSE: Gallstone formation is a common problem in neonates on prolonged courses of total parenteral nutrition (TPN). The authors hypothesized that the use of cholecystokinin-octapeptide (CCK), given at the time of TPN administration, would prevent gallstone formation in a high-risk group of patients with TPN. METHODS: A prospective, randomized, blinded, controlled trial of neonates who were on a prolonged course of TPN for prematurity (25 infants), necrotizing enterocolitis (NEC, 8 infants), or abdominal surgery (5 infants) were selected randomly to receive CCK vs placebo. Patients remained on the study until taking more than 50% of energy enterally. Children were recalled between 2 and 4 years after completing TPN for ultrasonographic examination of their hepatobiliary tree. RESULTS: Neonates (38 studied) required a mean (+/-SD) of 33 +/- 16 days of TPN. Cholelithiasis was detected in 4 (10%) infants. Cholecystokinin-octapeptide was not effective in preventing the formation of gallstones (3 stones in infants receiving CCK, P = .51). Diagnosis (P = .56), birth weight (P = .54), gestational age (P = .18), and duration of TPN (P = .53) did not correlate with gallstone formation. To address the management of these stones, all 4 were placed on a prolonged course of ursodeoxycholic acid (mean duration, 11.6 +/- 5.4 months). Two additional infants (not in the original study) with TPN-associated gallstone disease were also given a trial of ursodeoxycholic acid. Serial ultrasounds were performed every 6 months. No patient achieved any degree of stone dissolution. One patient underwent cholecystectomy for symptomatology. CONCLUSIONS: Total parenteral nutrition-associated gallstones were detected in 10% of children, and most are nonsymptomatic. Cholecystokinin-octapeptide prophylaxis was not effective in preventing TPN-associated gallstones. In addition, the use of ursodeoxycholic acid did not dissolve gallstones, once identified. Future methods will be needed to address the prevention and treatment of these stones.

Cholagogues and Choleretics↗

The effect of phenol on ingrown toenail excision in children.

PURPOSE: Ingrown toenails in children are a common problem with a high recurrence rate. The objective of this retrospective data review was to compare simple excision of the nail matrix with excision plus phenol (EPP) application in the treatment of ingrown toenails. METHODS: The charts of 69 children who underwent surgical treatment of one or more ingrown toenails from 1994 to 2000 were reviewed. The primary procedure was noted (excision alone [EA] vs EPP) and dates of recurrences and reoperations were recorded. Parents were then surveyed by phone regarding complications, cosmetic outcome, and overall satisfaction with the procedure. Five scale categories, ranging from "strongly agree" to "strongly disagree", were used, with responses of "strongly agree" and "agree" considered as a good outcome. Either Student's t test or the chi2 test (P < .05 considered significant) was used for analysis. RESULTS: Thirty-one patients (45%) were in the EPP group whereas the remaining 38 had EA. Mean length of follow-up was 4.3 years for the EA group and 2.1 years for the EPP group. There was no difference in age at operation or length of follow-up between the 2 groups. Boys were predominant in both groups. The survey response rate was 50/69 (73%). The recurrence rate of ingrown toenails in the EA group was 42% vs 4% in the EPP group (P = .003). There were no significant differences in parental response with regard to operative experience (P = .31) and the cosmetic result (P = .13), with most of the respondents (78%) indicating a good outcome for both questions. CONCLUSIONS: The addition of phenol to the surgical excision of ingrown toenail significantly reduced the incidence of recurrence, with similar patient satisfaction and an equivalent cosmetic result.

Adolescent↗

Prenatal exposure to thyroid hormone is necessary for normal postnatal development of murine heart and lungs.

Maternal hypothyroxinemia during early pregnancy poses an increased risk for poor neuropsychological development of the fetus. We tested the hypothesis that maternal hypothyroidism before the onset of fetal thyroid function also affects postnatal development of heart and lungs. This question was addressed in transgenic mice that express herpes simplex virus thymidine kinase in their thyroidal follicle cells. Treatment with ganciclovir rendered these mice severely hypothyroid because viral thymidine kinase converts ganciclovir into a cytotoxic nucleoside analog. Since ganciclovir crosses the placenta, it also destroyed the thyroid of transgenic embryos while leaving the thyroids of nontransgenic littermates unaffected. Hypothyroidism of both mother and fetus did not affect prenatal heart and lung development. However, the postnatal switch from beta- to alpha-myosin heavy chain (beta- and alpha-MHC, respectively) gene expression and the increase of SERCA-2a mRNA expression did not occur in the ventricular myocardium of either the transgenic (thyroid destroyed) or nontransgenic (intact thyroid) offspring of hypothyroid mothers. Similarly, postnatal animals of the latter two groups retained elevated surfactant protein (SP) A, B, and C mRNA levels in their alveolar epithelium. In hypothyroid pups from hypothyroid mothers, these changes were accompanied by decreased alveolar septation. Our study shows that these effects of maternal hypothyroidism become manifest after birth and are aggravated by the concomitant existence of neonatal hypothyroidism.

Animals↗

Diagnosis of a proximal tracheoesophageal fistula using three-dimensional CT scan: a case report.

Missed proximal tracheoesophageal fistulas (TEF) after repair of an esophageal atresia (EA) with distal TEF are rare. The diagnosis usually is made on the basis of bronchoscopy and esophagoscopy, which can be inaccurate. Recent advances in computerized tomography (CT) have allowed saggital, coronal, and 3-dimensional reconstruction of any structure or organ. The authors report a case in which 3-dimensional CT was used to assist in the diagnosis of a missed proximal TEF in a 16-year-old girl.

Adolescent↗

Use of radiofrequency ablation of the lower esophageal sphincter to treat recurrent gastroesophageal reflux disease.

PURPOSE: Recurrent gastroesophageal reflux disease (GERD) after gastroesophageal surgery is a troublesome problem. Reoperative surgery often is complicated by adhesions and recurrence. Radiofrequency ablation or energy delivery (RF or the Stretta procedure) is a new method for treating GERD. This study is the first report describing the use of the Stretta procedure in pediatric patients. METHODS: Six patients who underwent previous gastroesophageal surgery presented with recurrent GERD. Medical records were reviewed and the severity of reflux graded using a modified scoring system. All underwent RF and were graded for GERD at 6 months postprocedure. RESULTS: Mean operating time was 80 +/- 12 minutes. Mean age at initial operation was 12 +/- 4 years and for the RF, 18.0 +/- 3.4 years. All patients were discharged as outpatients. Early complications occurred in one child with self-resolving acute gastric distension. Five of 6 patients were completely asymptomatic at 3 months after the procedure, and 3 stopped anti secretory agents. One patient was improved but still symptomatic and needed a redo fundoplication. Another required a repeat application of RF 10 months after the initial one. Mean GERD score pre-Stretta was 5.2 +/- 1.0, which improved to 1.6 +/- 1.9 at 6 months postprocedure (P <.05; paired t test). CONCLUSIONS: Use of RF treatment of the lower esophageal sphincter is a potentially successful modality to treat recurrent GERD in children. Long-term follow-up is required.

Adolescent↗

Esophagogastric separation for failed fundoplication in neurologically impaired children.

PURPOSE: Recurrent gastroesophageal reflux (GER) after a fundoplication in severely neurologically impaired children is a frustrating problem without an effective solution: redo fundoplications carry a significant recurrence rate and gastrojejunostomy (GJ) tube feedings are associated with frequent tube dislodgment. The authors report a series of esophagogastric separation (EGS) procedures aimed at the management of failed fundoplication in neurologically impaired children. METHODS: Medical records of 10 patients who underwent EGS for recurrent GER were reviewed retrospectively. Variables examined included diagnosis, preoperative problems, operative and perioperative data, and outcomes. RESULTS: None of the patients were feeding orally and all were dependent on tube feedings. A median of 1.5 (range, 1 to 3) fundoplications had been performed previously and failed. All had preoperative emesis and feeding intolerance. Eight had failure to thrive and 5 recurrent pneumonias. Median age at the time of the procedure was 7.5 years (range, 2 to 22). Median postoperative length of stay was 9 days (range, 5 to 17), and there were no leaks from the anastomosis. Salivary secretion intolerance was the most common postoperative problem (5 of 10 patients). Repeat exploration was required for perforation of the colon in one and paraesophageal hernia in another. Recurrent GER was not noted. All 9 currently surviving children are tolerating bolus gastrostomy feedings, which was an advantage to the parents. CONCLUSIONS: EGS is an attractive alternative for failed fundoplication in severely neurologically impaired children.

Adolescent↗

A novel approach to the management of late-onset liver failure in biliary atresia.

PURPOSE: Late-onset hyperbilirubinemia in patients who have undergone a successful portoenterostomy (PE) for biliary atresia (BA) is usually considered evidence of ongoing severe liver failure. The authors recently have treated 2 patients who had acute hyperbilirubinemia years and months after a successful PE and had dilated intrahepatic cysts. A combined operative and percutaneous approach reestablished drainage and a reduction in their bilirubin levels. METHODS: Data from 2 cases of BA and late-onset hyperbilirubinemia from obstruction were reviewed and analyzed. RESULTS: Two patients (15-year-old boy and a 2.5-year-old girl) presented with increasing serum bilirubin after a PE for BA in infancy. Both had extensive preoperative workup, which showed intrahepatic biliary dilatation in one and a large bile lake in the other. They underwent attempted percutaneous transhepatic cholangiography and stenting, followed by an intraoperative transhepatic approach in which the dilated ducts were connected to the PE. A rapid and sustained reduction in the serum bilirubin level was noted in these patients. CONCLUSIONS: When patients with BA after a successful PE present with sudden onset of hyperbilirubinemia, imaging for biliary obstruction should be carried out. If biliary dilatation is found, then a combined radiologic and operative approach may help improve the bile flow and delay the need for liver transplant.

Adolescent↗

Biliary atresia associated with hypoplastic left heart syndrome: a case report and review of the literature.

Biliary atresia is a cholestatic disorder of infancy that is associated with other anatomic anomalies in approximately 20% of cases. These frequently are defects in situs determination and laterality, causing syndromes of heterotaxy and complex heart defects. The authors describe an infant with both biliary atresia and hypoplastic left heart syndrome (HLHS) in the absence of a laterality defect or evidence of any other morphologic defect. The presence of a hypoplastic left ventricle in a patient with biliary atresia has previously been reported only in the context of a heterotaxy syndrome. The coexistence of these 2 disorders raises etiologic considerations and represents a potential challenge for the surgical treatment of both conditions.

Abnormalities, Multiple↗

Congenital short-gut syndrome.

A case of congenital short gut is reported in a 4-month-old boy presenting with failure to thrive. Upper gastrointestinal examination (UGI) with small bowel follow-through (SBFT) demonstrated dilation of the duodenum and jejunum, with rapid transit to rectum. On barium enema (BE), rapid transit of barium was noted to the dilated proximal small bowel seen on UGI/SBFT. Neither study delineated the ileocecal region, and the overall length of bowel appeared short. The diagnosis of congenital short gut was confirmed at surgery. Congenital short-gut syndrome is a rare entity. The diagnosis can be suggested by imaging, but is usually confirmed operatively.

Barium Sulfate↗

Laparoscopic repair of postoperative perineal hernia.

Symptomatic perineal hernia is a rare complication after abdominoperineal resection. Various approaches to surgical repair have been described, including transabdominal, transperineal, and combined abdominoperineal repairs. In this report, we present a laparoscopic approach for repairing a perineal hernia that developed 10 months after laparoscopy-assisted abdominoperineal resection for a recurrent squamous cell carcinoma of the anal canal. To the best of our knowledge, this is the first report of a laparoscopic repair of perineal hernia.

Abdominal Muscles↗