Operative mangement of intestinal atresia and stenosis based on pathologic findings

Management and Outcomes of Intestinal Atresia - A Single Institution Experience From 1947 to 2019

AIM OF THE STUDY

We aimed to evaluate disease characteristics, associated malformations and surgical outcomes of congenital intestinal atresia.

METHODS

We identified all patients with jejunoileal (JIA) or colonic atresia (CA) treated at the Helsinki University Children's hospital during 1947-2019 and collected clinical data retrospectively from archived and electronic medical records.

RESULTS

Of the 180 included patients, 156 had JIA and 24 CA. Overall survival improved markedly from 34% during 1947-1977 to 93% during 1978-2019. Rate of primary anastomosis (81% in JIA, 21% in CA) remained unchanged while early surgical complications decreased (32% vs 18%, P = 0.04) and prematurity rate increased (21% vs 45%, P = 0.002) among JIA patients over time. Around half of patients had associated, mostly gastrointestinal malformations which occurred comparably in JIA and CA. During 1978-2019, 20 (21%) JIA patients, but none of CA patients, developed short bowel syndrome. Presence of type 3b atresia (n = 16) or gastroschisis (n = 14), but not the extent of intestinal resection or surgical complications, was associated with development of short bowel syndrome without decreasing survival. Shorter primary bowel resection without tapering surgery in JIA predisposed to repeated resections due to obstructive symptoms, and prolonged duration of parenteral nutrition.

CONCLUSION

Survival of patients with JIA and CA has improved remarkably over time and is currently high despite frequent prematurity and associated malformations. In patients with JIA, apple peel atresia and gastroschisis predisposed to short bowel syndrome without jeopardizing high survival rates.

LEVEL OF EVIDENCE

IV.

Utility of the web excision with pre-membranous incision for congenital intestinal atresia-type I and stenosis

PURPOSE

This study analyzed the efficacy of web excision combined with a pre-membranous incision on the dilated proximal segment for congenital intestinal atresia with type I and stenosis (CIA-I/S).

PATIENTS AND METHODS

Twenty-six patients underwent surgery for CIA-I/S from January 1990 to June 2022. Patients were categorized into 3 groups according to the surgical procedure: Group A, web excision with pre-membranous incision of the dilated intestine (n = 14); Group B, enteroplasty with a trans-membranous vertical incision (n = 7) and Group C, diamond-shaped anastomosis (n = 5). To minimize the impact of obstruction location on outcomes, we specifically examined 17 cases of duodenal atresia/stenosis: Group D-A, (n = 6); Group D-B, (n = 6) and Group D-C, (n = 5). We retrospectively compared the operative and postoperative parameters among the three groups.

RESULTS

No patient experienced anastomotic leakage or obstruction. There were no significant differences in operative duration or blood loss among the 3 Groups. The median time to feeding initiation was 4, 6.5, and 5 days in Groups A, B, and C, respectively (p = 0.04) and was 4, 6.5, and 5 days in Groups D-A, D-B, and D-C, respectively (p = 0.04).

CONCLUSION

Web excision, when compared to enteroplasty and diamond-shaped anastomosis, showed comparable results in terms of the operative duration and postoperative complications. However, it may allow for an earlier initiation of enteral nutrition.

Intestinal Atresias: A Ten-Year Evaluation of Outcomes

INTRODUCTION

Intestinal atresia is a common cause of neonatal bowel obstruction. Atresias are often associated with other congenital anomalies. The purpose of the study was to evaluate associated anomalies, operative management, and postoperative outcomes of infants with intestinal atresia.

METHODS

A review of patients presenting to a single free-standing children's hospital from March 2012 through February 2022 was performed. The variables examined were type of atresia, additional congenital anomalies, type of operative intervention, and postoperative outcomes. Standard statistical methods were utilized.

RESULTS

A total of 75 patients with intestinal atresia were identified and several of these patients had multiple atresias. Isolated duodenal atresia patients were the most common (49.3%), followed by jejunal (32%) and ileal (12%). Mixed atresias were rare at 4%, with isolated pyloric and colonic also rare at 1.3% each. Malrotation was associated with 13% of patients and equally associated with duodenal and jejunoileal atresias. A low percentage (3%) of intestinal atresias was seen in conjunction with gastroschisis and concomitant malrotation. A majority of infants with duodenal atresia underwent standard duodenoduodenostomy (19% laparoscopic, 81% open). In infants with jejunoileal atresia, most underwent resection with primary anastomosis. A tapering enteroplasty was performed primarily in 13% of atresias. There were no significant differences noted in time to first feed or length of stay between those with and without tapering enteroplasty. Eleven percent of patients required subsequent intervention for stricture or small bowel obstruction. There was one death in this series.

CONCLUSIONS

Consistent with other literature, duodenal atresia was the most common type of intestinal atresia. However, we demonstrated that malrotation was equally associated with duodenal and jejunoileal atresias while prior reports had shown a higher association with duodenal atresia. In our patient population, the use of tapering enteroplasty did not appear to be associated with outcomes. Overall, these infants have a low morbidity and mortality rate with a rare need for reoperation.

Type IIIb jejunal atresia treated surgically with two end-to-end anastomoses

A term newborn presented after birth with abdominal distension and vomiting in a developing country in Asia. Ultrasonography suggested intestinal obstruction and abdominal X-ray showed a 'double-bubble' sign suggestive of intestinal atresia. The newborn was diagnosed with early-onset neonatal sepsis secondary to intestinal obstruction and transferred to the neonatal intensive care unit. Surgery was performed and type IIIb jejunal atresia was found. Type IIIa/b jejunal atresia is associated with high incidence of poor outcome in lower socioeconomic countries. The affected intestinal segment and a distal serosal tear were resected and two end-to-end anastomoses formed. Oral feeding commenced on day 13 postoperatively. The patient was discharged on day 20 with adequate nutritional status. At follow-up, the patient continued to thrive. An operation involving resection of two different segments of bowel repaired with two end-to-end anastomoses in a neonate had a successful outcome for the patient.

Distal colonic atresia: a case report

Colonic atresia (CA) is a rare disease with an incidence range between one of 20 000 and one of 66 000 live births. Most CA are located within the proximal colon; distal CA are even rarer. Because of its rarity, another case shall be described herewith. A 37th week of pregnancy born child was noticed occurring multiple vomiting, a distended abdomen and additional whitish-bloody stool shortly thereafter. In the first operation, a double-barrel stoma was created. After sufficient weight gain and alignment of the stoma ends, a secondary anastomosis was created in the child after 2 months. The diagnosis can be made reliably on the basis of an X-ray and leads to a good outcome with prompt surgical intervention. However, accompanying malformations should always be considered.

Intestinal atresia and necrotizing enterocolitis: Embryology and anatomy

The primitive gut originates at week 3 of gestation from the endoderm, with posterior incorporation of the remaining embryo layers. Wnt, Notch and TLR4 pathways have been shown to play central roles in the correct development of the intestine. The classical hypothesis for intestinal atresia development consists of failure in bowel recanalization or a vascular accident with secondary bowel reabsorption. These have been challenged due to the high frequency of associated malformations, and furthermore, with the discovery of molecular pathways and genes involved in bowel formation and correlated defects producing atresia. Necrotizing enterocolitis (NEC) has a multifactorial pathogenesis with prematurity being the most important risk factor; therefore, bowel immaturity plays a central role in NEC. Some of the same molecular pathways involved in gut maturation have been found to correlate with the predisposition of the immature bowel to develop the pathological findings seen in NEC.

Complex gastroschisis with apple peel jejunoileal atresia, primary closure, and Santulli procedure as a surgical alternative. Case report

BACKGROUND

Gastroschisis is a closure defect of the abdominal wall classified as complex when it presents with necrosis, volvulus, or atresia of the gastrointestinal tract. Jejunoileal atresia is caused by abnormal closure, discontinuity, or narrowing of the intestine. Apple Peel or type IIIb is the rarest presentation, with an incidence of 1.3 per 10,000 live births. In addition to presenting a high mortality rate.

PRESENTATION OF CASE

We present a preterm newborn patient of 30 weeks with a diagnosis of gastroschisis and jejunoileal atresia type IIIB. The congenital wall defect was closed in the first surgical stage, and he was then taken at four weeks to correct the atresia. In the second surgery, we found a difference in intestinal calibers of 8:1, and the surgical team decides to perform remodeling of the proximal sac with a mechanical stapler and perform anastomosis using the Santulli technique. On day 6 of life, enteral feeding began through a nutrition tube localized under intestinal anastomosis with progressive nutritional increase. Subsequently, intermittent and progressive occlusion of the stoma was performed, leading the patient to a definitive surgical closure one month later.

CONCLUSIONS

The mortality rate for gastroschisis and complex intestinal atresia is high. Advances in prenatal diagnosis, neonatal intensive care, and proper surgical correction are crucial to improving survival rates. The Santulli procedure is a surgical alternative for intestinal atresias with a caliber discrepancy greater than 4 to 1 or when the characteristics of the distal part do not allow a primary anastomosis to be performed.

Neonatal Gastrointestinal Emergencies: A Radiological Review

BACKGROUND

Abdominal emergencies in neonates require surgical management in almost all cases and complications may include bowel perforation, sepsis, shock, and even death. Radiological imaging has become a very important aid in the clinical setting as it shortens time to diagnosis.

OBJECTIVE

The objective of this review is to discuss the more prevalent neonatal gastrointestinal emergencies, review appropriate imaging options, and illustrate common radiological presentations of these entities.

CONCLUSION

Despite advancements in imaging techniques, it is important to keep in mind that neonates have a higher susceptibility to the adverse effects of ionizing radiation, and therefore radiography and ultrasonography remain the main diagnostic modalities for ruling out the diseases with the worst prognosis. Other modalities (fluoroscopy, computed tomography, and magnetic resonance imaging) may have limited use in very specific conditions. All providers in an emergency department should be familiar with the basic radiological findings that may indicate a gastrointestinal emergency, especially in health institutions that do not have 24-h radiologist coverage.

Congenital anomalies of the tubular gastrointestinal tract

Congenital anomalies of the tubular gastrointestinal tract are an important cause of morbidity not only in infants, but also in children and adults. The gastrointestinal (GI) tract, composed of all three primitive germ layers, develops early during embryogenesis. Two major steps in its development are the formation of the gut tube (giving rise to the foregut, the midgut and the hindgut), and the formation of individual organs with specialized cell types. Formation of an intact and functioning GI tract is under strict control from various molecular pathways. Disruption of any of these crucial mechanisms involved in the cell-fate decision along the dorsoventral, anteroposterior, left-right and radial axes, can lead to numerous congenital anomalies, most of which occur and present in infancy. However, they may run undetected during childhood. Therapy is surgical, which in some cases must be performed urgently, and prognosis depends on early diagnosis and suitable treatment. A precise pathologic macroscopic or microscopic diagnosis is important, not only for the immediate treatment and management of affected individuals, but also for future counselling of the affected individual and their family. This is even more true in cases of multiple anomalies or syndromic patterns. We discuss some of the more frequent or clinically important congenital anomalies of the tubular GI, including atresia's, duplications, intestinal malrotation, Meckel's diverticulum and Hirschsprung's Disease.

Gastrointestinal Emergency in Neonates and Infants: A Pictorial Essay

Gastrointestinal (GI) emergencies in neonates and infants encompass from the beginning to the end of the GI tract. Both congenital and acquired conditions can cause various GI emergencies in neonates and infants. Given the overlapping or nonspecific clinical findings of many different neonatal and infantile GI emergencies and the unique characteristics of this age group, appropriate imaging is key to accurate and timely diagnosis while avoiding unnecessary radiation hazard and medical costs. In this paper, we discuss the radiological findings of essential neonatal and infantile GI emergencies, including esophageal atresia and tracheoesophageal fistula, hypertrophic pyloric stenosis, duodenal atresia, malrotation, midgut volvulus for upper GI emergencies, and jejunoileal atresia, meconium ileus, meconium plug syndrome, meconium peritonitis, Hirschsprung disease, anorectal malformation, necrotizing enterocolitis, and intussusception for lower GI emergencies.

Ultrasound and Fetal MRI Complementary Contributions to Appropriate Counseling in Small Bowel Obstruction

OBJECTIVE

Bowel obstructions beyond the duodenum represent a heterogeneous group of congenital anomalies with a highly variable prognosis, the main issue being postnatal short bowel syndrome (SBS). The objective of our study was to evaluate the contributions of fetal MRI in cases of bowel obstruction.

MATERIALS AND METHODS

A retrospective analysis of all newborns, for whom both ante-natal ultrasound and fetal MRI were available, referred to our center for suspected bowel obstruction was performed. Examinations were reviewed blinded to the postnatal outcome. Key outcome measures included exact diagnosis and the existence of postoperative SBS. We evaluated the contribution of MRI in determining precise location and etiology of the bowel obstruction, dilatation of the proximal bowel loops, and assessment of the quality of the remaining distal bowel loops.

RESULTS

Twenty-five newborns were included. There were 19 single obstructions and 6 complex forms (4 apple peel syndromes and 2 multiple atresias). MRI correctly identified the affected segment of the small bowel in 59.1% of the cases. MRI identified the mechanism of obstruction in 72% of cases. MRI reliably predicted an abnormal appearance of the bowel distal to the obstruction in 100% of the severe cases (3/3) and in 66.7% of complex forms (4/6).

CONCLUSION

Our study suggests that fetal MRI, when done in addition to prenatal ultrasound, is contributory in the management of fetuses with suspected bowel obstruction. MRI may be particularly useful in determining the location and origin of the bowel obstruction and in assessing the quality of the bowel distal to the obstruction, which might assist in the prediction of SBS and more detailed prenatal counseling.

Intraoperative Findings Associated to Inpatient Mortality From Patients With Gastroschisis in Western Mexico

BACKGROUND

Intraoperative findings during gastroschisis surgery are the main predictor associated with increased mortality. The aim of our study was to determine the type of surgical findings associated with inpatient mortality in a cohort of patients with gastroschisis from a university hospital in Western Mexico.

MATERIALS AND METHODS

Infants with surgically repaired gastroschisis during the period 2011-2017 at the Dr. Juan I. Menchaca Civil Hospital of Guadalajara (Guadalajara, Mexico) were studied. Data regarding demographics, perinatal history, and intraoperative findings were collected and compared according to whether they were nonsurvivors (cases) or survivors (controls) at hospital discharge. Data were analyzed using logistic regression, determining its adjusted odds ratio (aOR) and its respective 95% confidence intervals (95% CIs). The proper adjustment of the model was verified using the Hosmer and Lemeshow test.

RESULTS

Ninety-four patients with gastroschisis were studied, of which 13 were nonsurvivors (13.8%), and 81 (86.2%) were survivors at hospital discharge. In the group of survivors, primary surgical closure was performed more frequently (P = 0.018), whereas staged reduction with a silo predominated in the group of nonsurvivors (P = 0.018), and an increased frequency of complex gastroschisis (0.0001). After logistic regression analysis, intraoperative findings associated with nonsurvival were severe bowel matting (aOR: 7.3; 95% CI: 1.2-44), and prolapse of the small intestine and large intestine, plus any other organ (aOR: 15.9; 95% CI: 1.1-219.6).

CONCLUSIONS

Mortality in our cohort was high (13.8%) and was significantly associated with severe bowel matting, and the prolapse of the small and large intestines, plus any other organ.

Educational Case: Intrauterine Fetal Demise and Intestinal Atresia: An Autopsy Investigation

The following fictional case is intended as a learning tool within the Pathology Competencies for Medical Education (PCME), a set of national standards for teaching pathology. These are divided into three basic competencies: Disease Mechanisms and Processes, Organ System Pathology, and Diagnostic Medicine and Therapeutic Pathology. For additional information, and a full list of learning objectives for all three competencies, seehttp://journals.sagepub.com/doi/10.1177/2374289517715040.¹

Jejuno-ileal atresia: its characteristics and peculiarities concerning apple peel atresia, focused on its treatment and outcomes as experienced in one of the leading South African academic centres

PURPOSE

Jejuno-ileal atresia remains the most common form of intestinal obstruction in the neonatal and infantile age group and has an incidence of 1:300 to 1:1500. Apple peel atresia (APA) is the rarest of the five described types. The morbidity and mortality of patients with APA managed at our institution are high, and we review our experience with this paper. We compared our outcomes with other developed and developing countries. In addition, we looked at factors that affect outcome and how we can change them.

METHODS

The study was a retrospective review of all patients treated with APA at IALCH between January 2002 and December 2010 and includes 34 patients.

RESULTS

The results revealed a mortality in excess of 70%. There were poor antenatal screening, a high rate of prematurity and often delays in transfer to our institution. Relaparotomy and sepsis rates were high.

CONCLUSION

This review represents a significant number of patients with APA from a single institution. Although survival rates have improved significantly over the years, APA remains a life-threatening malformation and results in significant morbidity and mortality in our setting.

An Atypical Variant of Apple Peel Atresia: Reporting a Rare Case

Apple peel intestinal atresia is a rare congenital malformation. It consists of a proximal jejunum ending in a blind pouch and distal small bowel wrapped around its vascular supply in a spiral fashion. A combination of type IIIb jejunoileal atresia (apple peel atresia) and type IV (multiple intestinal atresias) is a rare entity. The diagnosis and management of such complicated cases is a challenge, especially in resource-limited settings. We report a case of a four-day-old female who presented to the neonatal intensive care unit with complaints of vomiting, yellow discoloration of the skin, and failure to pass meconium since birth. The baby was born preterm (34 weeks) via spontaneous vaginal delivery. The physical examination concluded a jaundiced and dehydrated child with a soft, non-tender abdomen and absent gut sounds. X-ray abdomen showed two air-fluid areas in the left hypochondrium. The upper gastrointestinal gastrografin study revealed that contrast opacified the third part of the duodenum and no contrast was observed beyond it. On exploratory laparotomy, proximal jejunal atresia with four distal atresias in apple peel fashion and a viable 20 cm of small bowel was observed. The apple peel segments were supplied by mesenteric vessels. Unfortunately, our patient expired despite all supportive measures. The case highlights the significance of the prenatal and early postnatal diagnosis of such a complex combination of intestinal atresias for adequate and timely management.

Early outcomes of tapering jejunoplasty by antimesenteric seromuscular stripping and mucosal inversion for proximal jejunal atresia

Background

High jejunal atresia is associated with significant dilatation of the proximal segment. This poses two problems: (a) calibre discrepancy with the distal unused segment and (b) hypomotility causing stasis. Tapering jejunoplasty/enteroplasty could offer a practical solution in selected cases, leading to early establishment of feeds. This work aims to evaluate the outcome of tapering jejunoplasty including its effect on establishing enteral feeding in neonates with proximal jejunal atresia.

Results

Twenty-two neonates with jejunal atresia (types I, II and IIIa) were reviewed. Cases with multiple atresia, apple-peel variant and meconium ileus were excluded. The included cases fell retrospectively into two groups: group A (13 cases)—very proximal atresia and significant dilatation and group B (9 cases)—mid/distal jejunal atresia. For group A, we excised only the distal tip of the dilated bowel and stripped a seromuscular triangle up to the duodenojejunal flexure and inverted the mucosa along the antimesenteric border, followed by an end-to-oblique anastomosis. For group B, we performed a standard excision of a short proximal segment and an end-to-oblique anastomosis. There was no significant difference in the gestation age or birth weight between both groups. The mean operative time was 90 min for group A and 60 min for group B. The duration until full enteral feeds became tolerated, and parenteral nutrition was weaned accordingly was shorter in group A (mean 10.8 days) as compared to group B (mean 14.5 days), p = 0.045.

Conclusion

Tapering jejunoplasty by seromuscular stripping and mucosal inversion facilitates early establishment of feeds in proximal jejunal atresia.

Predictive Factors for Postoperative Outcome in Children with Jejunoileal Atresia

Background  Jejunoileal atresia is a relatively rare congenital gastrointestinal requiring surgery and long postoperative care. The postoperative outcome is affected by many factors and this study focuses on finding predictors for time to full enteral feeding, length of hospital stay (LOH), and postoperative complications. Methods  This was a retrospective study of all children operated for isolated jejunoileal atresia between 2001 and 2017 at a tertiary center of pediatric surgery. Independent variables regarding demographical-, operative-, and postoperative data were abstracted. Primary outcome was time to full enteral feeding, LOH, and postoperative complications in terms of reoperation or central line complication. Any significant variables from the univariate analysis were further analyzed with logistic regression and presented as odds ratio with 95% confidence interval. Results  After exclusion because of concomitant gastroschisis ( n  = 1), and death before discharge ( n  = 2), 47 patients were further analyzed (49% boys, 53% premature). No significant differences could be seen in the univariate analysis between children with short and long time (median > 17 days) to full enteral nutrition. Patients with longer LOH (median >32 days) had significantly lower birth weight compared with those with shorter LOH; median 2,550 g versus 2,980 g ( p  = 0.04). Patients with a central line complication had significantly longer median time to full enteral feeding (median 27 vs. 12 days, p  = 0.03), and significantly longer median LOH (median 43 vs. 21 days, p  = 0.03), but these parameters were not significant in a multivariate analysis. No significant results were found regarding reoperation. Conclusion  Low birth weight seems associated with an increased LOH in children operated on for jejunoileal atresia, and central line complications seem related to the duration with central line in this group. The small cohort may constitute a power problem in this study and further research regarding the included variables may reveal more potential predictors for the postoperative outcome.

Abnormalities of the intestinal pacemaker cells, enteric neurons, and smooth muscle in intestinal atresia

BACKGROUND

Small bowel atresia is a congenital disorder that carves a substantial morbidity. Numerous postoperative gastrointestinal motility problems occur. The underlying cause of this motility disorder is still unclear. Interstitial cells of Cajal (ICC) play a major role in gastrointestinal motility.

AIMS AND OBJECTIVES

To investigate the morphological changes of enteric nervous system and ICC in small bowel atresia.

MATERIAL AND METHODS

Resected small bowel specimen from affected patients (n=15) were divided into three parts (proximal, distal, atretic). Standard histology and immunohistochemistry with anti C-KIT receptor antibody (CD117), calretinin and α-SMA was carried out. The density of myenteric ICCs in the proximal, atretic and distal parts was demonstrated by CD 117 while Calretinin was used for ganglion cells and nerve bundles, α-SMA highlighted muscle hypertrophy.

RESULT AND CONCLUSION

The proximal and distal bowel revealed clear changes in the morphology and density of enteric nervous system and interstitial cells of Cajal..

A new variant of type III jejunoileal atresia

Jejunoileal atresia (JIA) is a congenital defect that can result in significant loss of bowel length. The traditional classification of JIA was first proposed by Grosfeld and includes 4 subtypes. Among these, type IIIB, or apple-peel atresia, is characterized by a proximal atretic jejunum and a distal segment of spiraled bowel that terminates at the cecum. Owing to this anatomy, patients with type IIIB JIA are at increased risk for short bowel syndrome and intestinal failure. In this report, we described the case of a neonate with a prenatal diagnosis of JIA. At exploration, she was initially found to have a type IIIB atresia. However, instead of terminating at the cecum, the distal spiraled segment was followed by 75 cm of normal small bowel and mesentery. Surgical correction proceeded with minimal resection and primary anastomosis. She recovered well from this procedure, tolerated full enteral nutrition by mouth, and displayed good weight gain at outpatient follow-up. Owing to the unique anatomy of the gastrointestinal tract in this case report, we propose the addition of a new class of JIA, type IIIC, to better reflect its prognostication and surgical management.

Primary versus secondary anastomosis in intestinal atresia

PURPOSE

Neonates with intestinal atresia (IA) undergo either primary anastomosis (PA) or ostomy creation with secondary anastomosis (SA). Our purpose was to compare outcomes for PA and SA and to assess factors influencing procedure selection.

METHODS

We conducted a retrospective cohort study of neonates with IA between 2009 and 2015. Patient characteristics, operative details, and outcomes were collected. Surgeon-level preferences (defined as performing >50% PA or SA) were assessed using logistic regression.

RESULTS

Of 92 IA patients, 70 (76.1%) underwent PA and 22 (23.9%) underwent SA. Neonates with PA had shorter hospitalizations (27 days vs. 95 days, p < 0.001), shorter total parenteral nutrition duration (19 days vs. 74.5 days, p < 0.001), and fewer readmissions (33.3% vs. 63.2%, p = 0.024). On multivariable regression analysis, higher Apgar scores (Odds Ratio (OR) 4.16, 95% Confidence Interval (CI) 1.20-14.29) and uncomplicated atresia (OR 3.97, 95% CI 1.37-11.48) were associated with PA. At the surgeon-level, utilization of PA varied from 43.5% to 100%. Surgeon preference is not influenced by the demographic, presentation, or surgical findings of this patient population.

CONCLUSIONS

PA has better outcomes than SA. Though procedural selection is influenced by the clinical status of the neonate, however surgeon preference plays a significant role in this clinical decision.

LEVEL OF EVIDENCE

Level III Treatment Study.

Autologous intestinal reconstruction surgery

The management of short bowel syndrome has mainly been focused on intestinal rehabilitation as part of multidisciplinary team approach in specialized centers. While some patients go through a process of bowel adaptation that allows them to reach enteral autonomy, others reach a plateau before this and require prolonged parenteral nutrition and/or intestinal transplantation. Various autologous intestinal reconstruction procedures centered on bowel tapering have been described to increase functional intestinal area and help gain enteral autonomy. This review discusses the surgical techniques, advantages, limitations, and general outcomes of each procedure.

Intestinal Obstruction in Early Neonatal Period: A 3-Year Review Of Admitted Cases from a Tertiary Hospital in Ethiopia

Background

Failure to pass meconium by a full-term neonate within the first 24 hours should raise a suspicion of bowel obstruction. The objective of this study was to determine pattern of presentation, diagnosis and outcome of management of intestinal obstruction in the early neonatal period in the Neonatal Care Unit of Tikur Anbessa Specialized Hospital in Addis Ababa, Ethiopia.

Methods

Retrospective chart review of admitted cases from January 2011 to December 2013 was done. Data were entered into SPSS software version 20. Descriptive analysis of data were done at first; then cross tabulation of variables with chi-square tests were done.

Results

Fifty-one (41 males and 10 females) cases of neonatal intestinal obstructions were described. ARM was the most common type of intestinal obstruction followed by intestinal atresia and Hirschsprung's disease.Delayed diagnosis of cases was observed in 72%. Associated congenital anomalies were documented in 13 % of the cases. Death occurred in 20% of the cases. One or another form of infection accounted for 90% of the deaths. Neonatal sepsis and being unfit for anesthesia were determinants of mortality with p-value <0.02 and < 0.0007 respectively.

Conclusion

Anorectal malformation is the commonest cause of early neonatal obstruction followed by small intestinal atresia and Hirschsprung's disease. Low number of associated anomalies has been reported. High rate of death due to preventable causes such as sepsis is observed. Delayed diagnosis of cases were also prevalent.

Familial Jejunal Atresia with ‘Apple-Peel’ Variant1

We report two siblings who had jejunal atresia which we believe to be familial. The parents of these siblings were first cousins. The first child had jejunal atresia with mesenteric agenesis and ‘apple-peel’ configuration; the second child had jejunal atresia with a V-shaped mesenteric defect. Other reported cases of familial atresia of the small intestine are reviewed.

Colonic atresia in a newborn. Case Report

Introducción: la atresia colónica es el tipo menos común de atresia intestinal; sin embargo, debe sospecharse en pacientes con obstrucción intestinal parcial o completa, falla al pasar meconio, vómito y distensión abdominal. Se ha descrito un buen pronóstico en pacientes con tratamiento oportuno.Reporte de un caso: este artículo informa el caso de un paciente recién nacido que presenta vómito, distensión abdominal, falla al pasar el meconio y un rápido deterioro clínico progresivo. Durante la laparotomía exploratoria se encontró una atresia colónica que requirió una colostomía temporal debido a la discrepancia de los calibres proximal y distal. Posteriormente, se realizó la anastomosis colónica utilizando una colostomía protectora que finalmente se cerró. Este paciente tuvo una buena recuperación postoperatoria.Conclusión: la atresia colónica debe considerarse una causa importante de obstrucción intestinal distal en pacientes pediátricos y, por lo tanto, siempre debe sospecharse. También se recomienda descartar otras anomalías asociadas, así como realizar una biopsia rectal para la enfermedad de Hirschsprung para evitar complicaciones.

Demographic Study and Management of Colonic Atresia: Single-Center Experience with Review of Literature

Context and Aim

The aim of this study is to highlight the rarity of this disorder and its associated anomalies and our objective was to review our experience in the management of colonic atresia (CA) with respect to staged surgery versus one-step procedure for a better outcome of the disease.

Settings and Design

A randomized, controlled, single-center study conducted over a period of 4 years from October 2013 to 2017.

Subjects and Methods

Nine cases were operated for CA of which three underwent primary anastomosis and six underwent initial colostomy followed by definitive surgery. Age, sex, body weight, clinical presentation, type of atresia, site, time interval of operation, associated anomalies, initial procedure, postoperative complications, final procedure, biopsy, hospital stay, and outcome were noted.

Statistical Analysis Used

Microsoft Excel was used for statistical analysis.

Results

Out of 9 patients, 6 were males and 3 were females, 7 patients survived and 2 patients died (mortality 22.2%), of which one patient with primary anastomosis had leak and sepsis and one patient with primary anastomosis had associated Hirschsprung's disease (HD). Mean time gap for operation was 12.8 h and mean hospital stay was 3.5 days for initial colostomy and 21 days for primary anastomosis. Wound dehiscence occurred in 4 patients. Malrotation was found in 3 patients, HD in 2 patients, cardiac anomaly in 2, Meckel's diverticulum in 1, and cleft lip in 1 patient. Type IIIa atresia was found in in 6 patients, Type I in 2, and Type II in 1 patient. The most common site was transverse colon (n = 5).

Conclusion

Diagnosis and management of CA is a challenge. Early presentation and diagnosis should be prompt. Staged procedure with initial colostomy followed by definitive procedure is the preferred choice. Associated anomaly HD must be ruled out.

Type I Jejunal Atresia in Identical Twins: A Rare Occurrence

Jejunoileal atresia is of familial and non-familial in origins and classified into four different types. We herein report a rare occurrence of type I jejunal atresia in identical twins who were presented with neonatal intestinal obstruction. This report points towards common etiology of atresia in our cases and factors more than vascular accident appear to be involved.

Apple-Peel Intestinal Atresia Along with Isolated Jejunal Duplication Cyst in a Newborn - An Extremely Rare Case Report and Brief Review

Apple-peel type of intestinal atresia and non-communicating jejunal duplication cyst are rare congenital malformations. The coexistence is not reported in English literature. A five-day-old female neonate having intestinal obstruction and was found to have both the anomalies during laparotomy and was successfully managed. Being an extremely uncommon association between two congenital anomalies of gastrointestinal tract and surgical emergencies, it is reported with review of relevant literature.

Congenital absence of jejunum and ileum: A case report and literature review

We report an extremely rare finding 'congenital absence of jejunum and ileum' during explorative laparotomy of a 16-day-old female neonate. The dilated duodenum was terminating blindly, and the next segment of intestine was a peanut-sized cecum followed by microcolon. On an extensive survey of literature this type of intestinal atresia is not reported in living babies.

Complications in neonatal surgery

Neonatal surgery is recognized as an independent discipline in general surgery, requiring the expertise of pediatric surgeons to optimize outcomes in infants with surgical conditions. Survival following neonatal surgery has improved dramatically in the past 60 years. Improvements in pediatric surgical outcomes are in part attributable to improved understanding of neonatal physiology, specialized pediatric anesthesia, neonatal critical care including sophisticated cardiopulmonary support, utilization of parenteral nutrition and adjustments in fluid management, refinement of surgical technique, and advances in surgical technology including minimally invasive options. Nevertheless, short and long-term complications following neonatal surgery continue to have profound and sometimes lasting effects on individual patients, families, and society.

Colonic Atresia: Association with Other Anomalies

Background: Colonic atresia (CA) is a rare form of congenital intestinal atresia. Although CA may be isolated, it is more commonly reported in literature in association with other congenital anomalies.

Materials and Methods: This study is a review of prospectively collected data of all the patients with colonic atresia presented to our center (Ain Shams University) during 2008 to 2016.

Results: Twelve patients were enrolled in this study. The atresia was of type I in one case, type II in four cases, type IIIa in six cases, type IV in one case. These cases accounted for 4.9 % of intestinal atresias managed in our center during the same period. Five cases were isolated CA, while the other seven cases had associated abdominal congenital anomalies (exomphalos, Hirschsprung's disease, imperforate anus, closing gastroschisis, colonic duplication, and multiple small bowel atresia in two cases). The management in ten cases was by staged procedure with creation of a temporary stoma initially, while primary anastomosis was established in two cases. We had two cases with delayed presentations, one missed diagnosis, and three mortalities in this series.

Conclusions: The low incidence of CA may result in delay in the diagnosis and management. Hirschsprung's disease should be excluded in every case of colonic atresia. Early diagnosis and proper surgical management is essential for good prognosis.

Early Reoperations after Primary Repair of Jejunoileal Atresia in Newborns

Aim: To review nine-year experience in managing jejuno-ileal atresia (JIA) by primary resection and anastomosis and identify factors associated with reoperations.

Methods: From April 2006 to May 2015, all consecutive neonates who underwent bowel resection and primary anastomosis for JIA were analyzed retrospectively. Patients with temporary enterostomy were excluded. Patient demographics, types of atresia, surgical techniques, need for reoperations, and long-term outcomes were investigated.

Results: A total of forty-three neonates were included, in which nineteen (44.2%) of them were preterm and fourteen (32.6%) were of low birth weight. Thirteen patients (30.2%) had jejunal atresia whereas thirty patients (69.8%) had ileal atresia. Volvulus, intussusception and meconium peritonitis were noted in 12, 8, and13 patients, respectively. Eight patients (18.6%) had short bowel syndrome after operation. Ten patients (23.3%) required reoperations from 18 days to 4 months after the initial surgery due to anastomotic stricture (n=1), adhesive intestinal obstruction (n=1), small bowel perforation (n=2) and functional obstruction (n=6). Prematurity and low birth weight were associated with functional obstruction leading to reoperation (p=0.04 and 0.01 respectively). The overall long-term survival was 97.7%. All surviving patients achieved enteral autonomy and catch-up growth at a median follow-up of 4.7 years.

Conclusion: Long-term survival of JIA after primary resection and anastomosis are excellent. However, patients have substantial risk of early reoperations to tackle intraabdominal complications.

Modified Gut Anastomotic Technique in Type III and Type IV Jejunoileal Atresias

BACKGROUND

Type III and IV jejunoileal atresias are associated with loss of significant length of the gut and can lead to short gut syndrome if further resection of proximal dilated gut is done. We modified the anastomotic technique so that proximal dilated segment of the gut is not resected as to prevent short gut syndrome.

MATERIAL AND METHODS

Medical Record of patients of Type III and IV jejuno-ileal atresias managed with modified anastomotic technique in our center during 5-years was reviewed.

RESULTS

Fifteen patients were managed with our modified technique. There were no anastomotic leak observed and there was 6% mortality seen in our modified technique.

CONCLUSION

We found less mortality and morbidity in our technique compared to recommended techniques described in literature.

A new anastomosis technique for intestinal diseases with proximal dilated segments

A number of techniques have been described for intestinal anastomosis. We describe a different, simple, and safe technique that can be used in patients with intestinal diseases, such as jejunoileal atresia and perforation that has proximal dilated segments. In this technique, an atraumatic bowel clamp was applied on the proximal dilated bowel at a 90° angle. In the narrow distal segment, we resected the bowel at a 0° angle and continued at a 30° angle from the antimesenteric side. Finally, a two-layer interrupted anastomosis was performed. We applied this technique to a 31-day-old patient who had a divided jejunostomy due to malrotation and perforation with a proximal dilated bowel. Neither anastomotic complications nor feeding and passage problems were seen postoperatively.

Small Bowel Congenital Anomalies: a Review and Update

The small intestine is a complex organ system that is vital to the life of the individual. There are a number of congenital anomalies that occur and present most commonly in infancy; however, some may not present until adulthood. Most congenital anomalies of the small intestine will present with obstructive symptoms while some may present with vomiting, abdominal pain, and/or gastrointestinal bleeding. Various radiologic procedures can aid in the diagnosis of these lesions that vary depending on the particular anomaly. Definitive therapy for these congenial anomalies is surgical, and in some cases, surgery needs to be performed urgently. The overall prognosis of congenital anomalies of the small intestine is very good and has improved with improved medical management and the advent of newer surgical modalities. The congenital anomalies of the small intestine reviewed in this article include malrotation, Meckel's diverticulum, duodenal web, duodenal atresia, jejunoileal atresia, and duplications.

Malrotation and intestinal atresias

This review encompasses four congenital conditions which present with symptoms of bowel obstruction in the neonatal period. The antenatal and postnatal features of malrotation, jejuno-ileal atresia, duodenal atresia and colonic atresia are discussed. Each condition is outlined including the classification, epidemiology, aetiology and presentation, and a summary of the surgical management is described.

Worst Prognosis in the "Complex" Jejunoileal Atresia: Is It Real?

Objective This report documents the authors' experiences in the management of “complex” jejunoileal atresia (JIA) and provides a review of the recent literature on “simple” and “complex” JIA.

Materials and Methods This is a retrospective study of eight cases of “complex” JIA managed at the Pediatric Surgical Unit of Infermi Hospital in Rimini from 2002 to 2012. The inclusion criteria are all cases of JIA associated with distal bowel deformities and Types IIIb or IV. One patient had gastroschisis.

Results The authors of this study performed primary anastomosis on three patients and enterostomies on five patients. In one case in which a patient presented with gastroschisis, the V.A.C. Therapy System (KCI Medical Ltd., Langford Locks, Kidlington, UK) was used to close the abdominal defect. All patients needed central venous catheter (CVC). Total parenteral nutrition (TPN) was administered for a mean of 12 days. Oral feeding was introduced on mean day 7 (7.71 ± 3.40 standard deviation). Patients with enterostomy began extracorporeal stool transport on mean day 14. No outcomes resulted in short bowel syndrome (SBS). The mortality rate was zero. The authors of this study performed more enterostomies and CVC insertion than other authors in “complex” JIA and reported a percentage of SBS, complications of TPN, and start of oral feeding comparable to “simple” case reported by other authors.

Conclusions The results demonstrate that the complexity of JIA alone is not associated to a worsening prognosis than simple atresia if the surgical and clinical approach is as conservative as possible.

In vitro smooth muscle contractility before and after relief of experimental obstruction in the rat: application to the surgical management of ileal dilatation

PURPOSE

Bowel dilatation occurs proximal to an obstruction and predisposes to intestinal dysmotility. The present study sought to determine whether or not changes in smooth muscle contractility and the thickness of the proximal, dilated bowel wall can be reversed following relief of the obstruction.

MATERIALS AND METHODS

Three groups of seven male Wistar rats were studied. In 8-week-old animals in a control group and a sham-operated group, a small segment of bowel (designated as R1 for controls and R2 for shams) was resected 5.0 cm from the cecum. In the third (operated) group, a narrow, isoperistaltic intestinal loop was created proximal to an end-to-end anastomosis of the ileum in 4-week-old animals. When these animals were 6 weeks old, the loop was re-anastomosed to the distal small bowel (after resection of the loop's distal portion, referred to as R3). Two weeks later, a small segment of bowel was resected proximal to the anastomosis (R4). We evaluated the thickness of the smooth muscle layers and the in vitro contractile responses of circular smooth muscle ileal strips (R1-R4) to electrical stimulation and pharmacological stimulation (with KCl, acetylcholine (ACh), substance P, N(G)-nitro-l-arginine methyl ester (L-NAME) and histamine).

RESULTS

The amplitudes of contraction in response to electrical and Ach-mediated stimulation were higher for R3 than for R4 (P<0.001), R1 and R2 (both P<0.05). Compared with R1 and R2, the smooth muscle layer was three times as thick in R3 (P<0.001) and 2.5 times as thick in R4 (P<0.01).

CONCLUSION

Our study provides evidence of the possible recovery of intestinal motility (in response to neurotransmitters involved in gut function) after the relief of an obstruction. If ileal motility can conceivably return to normal values, conservative surgical procedures in pediatric patients should be preferred (in order to leave a sufficient length of bowel and avoid short bowel syndrome).