Adult Ileocolic Intussusception Following Appendectomy: A Case Report of a Rare Sonographic Finding.

Adult intussusception is a rare condition characterized by the telescoping of one segment of the intestine into an adjacent segment. Prompt recognition and intervention are crucial due to the potential for serious complications. The present case is of adult ileocolic intussusception in a 47-year-old male patient who underwent appendectomy three weeks prior. The patient presented with constipation, lower abdominal pain, and vomiting. A transabdominal ultrasound revealed characteristic sonographic features, including a target appearance at the transverse view and the pseudokidney sign of the longitudinal view associated with the presence of reactive lymph nodes. Doppler ultrasound indicated no internal flow, suggesting possible ischemia. This case highlights the role of ultrasound in the initial evaluation of adult intussusception and emphasizes the need for further imaging modalities for detailed anatomical evaluation and lesion identification.

A Case of Long-Tract Ileocolic Intussusception Secondary to Well-Differentiated Cecal Adenocarcinoma.

Intussusception denotes the intricate phenomenon wherein one segment of the bowel undergoes invagination or telescoping into its contiguous distal segment. The ensuing invaginated segment may be propelled forward through peristaltic movements, potentially precipitating bowel obstruction or ischemia, culminating in necrosis of the affected bowel segment. Although the precise etiology of intussusception remains elusive, particularly in cases devoid of an identifiable lead point, dysrhythmic contractions and lymphoid hyperplasia have been implicated in the pathophysiology of this condition. We present the case of an 86-year-old African American female with a past medical history of hypertension and asthma who presented to our emergency room with a seven-day history of worsening abdominal. The pain was described as sharp and intermittent, and it would worsen with every meal or drink. A physical exam demonstrated the right lower quadrant with vague abdominal tenderness, especially below the umbilical region. Computed tomography of the abdomen and pelvis revealed a long segment of ileocolic obstructing intussusception in the ascending colon, with a 2.6 cm solid mass serving as a lead point. Swift intervention ensued with an urgent exploratory laparotomy, culminating in a right hemicolectomy to excise the intussuscepted segment of the bowel. The pathological examination identified a well-differentiated adenocarcinoma of the cecum, categorized as T1N0M0, with all 20 resected lymph nodes yielding negative results. This illustrative case presents a unique insight into a patient with ileocolic obstructing intussusception, caused by a well-differentiated adenocarcinoma acting as the lead point, a relatively uncommon occurrence in adults. Diagnosing intussusception in adults is challenging due to its nonspecific symptoms, which are similar to those of various other gastrointestinal disorders. Therefore, it is crucial for medical providers to be acutely aware of the possibility that adenocarcinoma can trigger obstructing intussusception in various parts of the bowel.

Colonic Lipoma: A Rare Cause of Intussusception.

The most common and challenging chief complaint in the emergency department is abdominal pain. Intussusception, although rare in adults, is an important etiology to consider. The diagnosis is often delayed because of the nonspecific symptoms, especially in adults. This case highlights a rare case of intussusception in a middle-aged male with a colonic lipoma as a leading point. Endo-loop was applied to the colonic lipoma, leading to the resolution of intussusception. Therefore, this can be an effective alternative to surgery in select cases.

Ileocolic Intussusception Secondary to Appendicular Mass in an Adult Patient: A Case Report and Radiological Approach.

Intestinal intussusception is a condition determined as the telescoping of one portion of the bowel loops into the approximate distal portion. Intestinal intussusception is a fairly rare condition in the adult population and almost always secondary to the underlying pathology; the most common leading causes of intussusception in adults are neoplasms, accounting for up to two-thirds of the causes. However, appendicular pathology is an extremely rare leading cause. The clinical picture of an adult patient with bowel intussusception (BI) is uncertain and nonspecific; it varies from vague abdominal pain to clinical presentation of complications, such as signs of bowel obstruction or bowel perforation. Therefore, early access to imaging is the cornerstone for the early detection and establishment of the provisional diagnosis of BI. Herein, we report a case of ileocolic intussusception in an adult patient secondary to appendicular phlegmon; moreover, we propose a radiological approach to reach the diagnosis of intestinal intussusception in the adult age group.

Ileocecal Intussusception and Obstruction Secondary to Metastatic Melanoma: A Case Report.

Intussusception is an uncommon cause of bowel obstruction in adults. Most cases are associated with a pathologic lead point, commonly attributable to benign or malignant tumors. Malignant skin melanoma can metastasize to the gastrointestinal tract and lead to significant morbidity and mortality if left undiagnosed or untreated. In this article, we present the case of a 43-year-old Hispanic female with a history of stage III melanoma on her neck removed four years ago who presented with three weeks of lower abdominal pain, nausea, and vomiting. Abdominal and pelvic imaging showed a high-grade small bowel obstruction with a transition point at the mid-ileum. Diagnostic laparoscopy confirmed an ileocecal intussusception secondary to a 5 cm mass at the lead point. The patient underwent successful resection of the ileum 5 cm from the intussusception and the ascending colon due to the high risk of malignancy. Pathology of the mass was found to be malignant melanoma, but the resected lymph nodes and omentum did not contain any malignancy. The patient tolerated the procedure well and is currently undergoing chemotherapy. This case demonstrates metastatic melanoma as a rare cause of intussusceptions in adults. It emphasizes the importance of considering intussusception when evaluating adult patients with classic lower abdominal pain. Prompt surgical intervention is recommended in suspected cases to address the significant likelihood of malignancy, especially in patients with an oncological history.

Ultrasound-guided hydrostatic reduction of intussusception: comparison of success rates between subspecialized pediatric radiologists and non-pediatric radiologists or radiology residents.

Ileocolic intussusception is the most common cause of intestinal obstruction in children under two years of age. Treatment in most cases is radiologically guided reduction. In Slovenia, ultrasound (US)-guided hydrostatic reduction is currently the standard of care. The purpose of this study was to compare the success rate of US-guided hydrostatic reduction when performed by subspecialty-trained pediatric radiologists, non-pediatric radiologists, or radiology residents. We retrospectively analyzed medical records of patients with ileocolic intussusception who underwent US-guided hydrostatic intussusception reduction at University Medical Centre Ljubljana between January 2012 and December 2022 (n = 101). During regular daily working hours, the reduction was performed by pediatric radiologists. After hours (evenings and overnight), pediatric radiologists, non-pediatric radiologists, or radiology residents performed the reduction procedure. Patients were divided into three groups based on the operator performing the procedure. Data was analyzed using the chi-square test. Pediatric radiologists had thirty-seven (75.5%) successful first attempts, non-pediatric radiologists had nineteen (76.0%), and radiology residents had twenty (74.1%). There was no statistically significant difference in the success rate of ileocolic intussusception reduction depending on the operator who performed the procedure (p = 0.98). No perforation was observed in either group during the reduction attempts.  Conclusion: Our results demonstrate that US-guided hydrostatic reduction is a reliable and safe procedure that achieves good results even in the hands of less experienced, however appropriately trained, radiologists. The results should encourage more medical centers to consider the implementation of US-guided hydrostatic reduction of ileocolic intussusception. What is Known: • US-guided hydrostatic reduction is a well-established method of treatment for ileocolic intussusception in children. • The results regarding the influence of operator's experience with the procedure on its success rate are scarce and contradictory. What is New: • US-guided hydrostatic intussusception reduction is a reliable and safe technique that achieves similar success rates when performed by experienced subspecialized pediatric radiologists or less experienced but trained operators such as non-pediatric radiologists and radiology residents. • The implementation of US-guided hydrostatic reduction in general hospitals without subspecialized pediatric radiologists could improve patient care by increasing access to radiologically guided reduction and simultaneously decreasing the time to reduction attempts.

Ileocolic neoplastic intussusception-Imaging role and surgical management: A case report.

Intussusception refers to invagination of bowel loops into a neighboring, adjacent bowel segment. While it is not an uncommon entity in paediatrics-about 95% of intussusceptions occur in childhood, merely 5% of them affect the adult population. When affecting the later typically the small intestine is engaged rather than the colon. The diagnosis often represents with unspecific symptoms and is rarely considered a possibility in adults. In the past the diagnosis was typically made intraoperatively. As the Multi-Detector Computed Tomography (MDCT) of the abdomen became a referral diagnostic method, recognizing the signs of the condition is very important since some of the cases are transient, while others have an underlying malignant cause and more aggressive treatment is required. Surgical treatment planning is mandatory in those neoplastic complicated cases. The presented case report describes the role of radiology and the surgical treatment of a malignant ileocolic intussusception.

Intussusception Management in Children: A 15-Year Experience in a Referral Center.

OBJECTIVE: To report a 15-y, single-center experience in the management and outcomes of ileocolic intussusception (ICI) episodes. METHODS: A retrospective study was performed in patients with ICI episodes, who were treated at a single quaternary referral center from 2005 to 2019. Data evaluated included patient demographics, clinical presentation, treatment modalities, hospital stay, complications, and outcomes. RESULTS: A total of 546 ICI episodes (66.1% males) were included, with a median age at diagnosis of 15 mo. Enema reduction was performed in 478 patients (87.6%), with an overall success rate of 85.8%. Hydrostatic saline enema was the most effective method (89.3%) when compared to pneumatic (80.6%) or barium enema (79.8%), this difference being statistically significant (p = 0.031). No associated complications were observed during nonoperative reduction. Surgical treatment was performed in 101 patients, in whom 36 bowel resections were performed. Postoperative complications were reported in 6 patients (5.9%). Hospital stay was significantly longer in patients with operative management (median 5 d vs. 1 d; p < 0.001). CONCLUSIONS: Nonoperative management has a high overall success rate and low complication and recurrence rates. Saline enema reduction presents the highest effectiveness, and should be considered the first-line treatment.

Incidental appendectomy in surgical treatment of ileocolic intussusception in children. Is it safe to perform? / Apendicectomía incidental en el tratamiento quirúrgico de la intususcepción ileocólica en niños. ¿Es segura?

BACKGROUND: Surgical treatment of ileo-colic intussusception (ICI) has been reported as the second cause of emergency laparotomy in children. The performance of incidental appendectomy after surgical reduction is currently controversial. The aim is to analyse the outcomes of performing incidental appendectomy after surgical ICI reduction with or without associated bowel resection. MATERIALS AND METHODS: A retrospective study was performed in patients with ICI episodes, who underwent surgical treatment in our institution between 2005-2019. Patients were divided in two groups according to the performance of associated appendectomy (AA group) or not (NA group). Subsequently, a stratified analysis was performed according to the need for bowel resection in both groups. Demographic variables, intraoperative findings, surgical time, hospital stay, postoperative complications and recurrences were analysed. RESULTS: A total of 101 patients (77 AA group; 24 NA group) were included, without differences in demographics or intraoperative findings. A total of 36 bowel resections were performed (24 group AA; 10 group NA), with no differences in surgical time (55.7 min in group AA vs. 61.2 min in group NA; p = 0.587) or hospital stay (median 5 days in both groups). There were also no differences in postoperative complications or recurrences between the two groups. Stratified analysis showed that bowel resection increases operative time, hospital stay and postoperative complications, regardless of whether associated appendectomy was performed or not. CONCLUSIONS: Incidental appendectomy during surgical treatment of ICI in children is a safe procedure that does not increase operative time, hospital stay, postoperative complications or recurrence.

OBJETIVO: El tratamiento quirúrgico de la intususcepción ileocólica (IIC) es la segunda causa más frecuente de laparotomía de urgencia en niños. La realización de una apendicectomía incidental tras la reducción quirúrgica sigue siendo motivo de controversia. El objetivo de este trabajo es analizar los resultados obtenidos al llevar a cabo una apendicectomía incidental tras la reducción quirúrgica de una IIC con o sin resección intestinal asociada. MATERIAL Y METODO: Se realizó un estudio retrospectivo en pacientes con episodios de IIC sometidos a tratamiento quirúrgico en nuestro centro entre 2005 y 2019. Los pacientes se dividieron en dos grupos según se llevara a cabo apendicectomía asociada (grupo AA) o no (grupo NA). Posteriormente, se elaboró un análisis estratificado según la necesidad de practicar resección intestinal en ambos grupos. Se analizaron las variables demográficas, los hallazgos intraoperatorios, el tiempo quirúrgico, la estancia hospitalaria, las complicaciones posoperatorias y las recidivas. RESULTADOS: Se incluyeron un total de 101 pacientes (77 en el grupo AA, y 24 en el grupo NA), sin diferencias en las características demográficas ni en los hallazgos intraoperatorios. Se practicaron un total de 36 resecciones intestinales (24 en el grupo AA; 10 en el grupo NA), sin diferencias en el tiempo quirúrgico (55,7 min en el grupo AA frente a 61,2 min en el grupo NA; p = 0,587) ni en la estancia hospitalaria (mediana de 5 días en ambos grupos). Tampoco se registraron diferencias en términos de complicaciones posoperatorias o recidivas entre los dos grupos. El análisis estratificado mostró que la resección intestinal incrementa el tiempo quirúrgico, la estancia hospitalaria y las complicaciones posoperatorias, con independencia de si se lleva a cabo apendicectomía asociada o no. CONCLUSION: La apendicectomía incidental durante el tratamiento quirúrgico de la IIC en niños es un procedimiento seguro que no aumenta el tiempo quirúrgico, la estancia hospitalaria, las complicaciones posoperatorias ni las posibilidades de recidiva.

Apendicectomía incidental en el tratamiento quirúrgico de la intususcepción ileocólica en niños. ¿Es segura? / Incidental appendectomy in surgical treatment of ileocolic intussusception in children. Is it safe to perform?

Objetivo: El tratamiento quirúrgico de la intususcepción ileocólica(IIC) es la segunda causa más frecuente de laparotomía de urgencia enniños. La realización de una apendicectomía incidental tras la reduc-ción quirúrgica sigue siendo motivo de controversia. El objetivo deeste trabajo es analizar los resultados obtenidos al llevar a cabo unaapendicectomía incidental tras la reducción quirúrgica de una IIC cono sin resección intestinal asociada. Material y método: Se realizó un estudio retrospectivo en pacientescon episodios de IIC sometidos a tratamiento quirúrgico en nuestro centroentre 2005 y 2019. Los pacientes se dividieron en dos grupos según sellevara a cabo apendicectomía asociada (grupo AA) o no (grupo NA). Posteriormente, se elaboró un análisis estratificado según la necesidad depracticar resección intestinal en ambos grupos. Se analizaron las variablesdemográficas, los hallazgos intraoperatorios, el tiempo quirúrgico, laestancia hospitalaria, las complicaciones posoperatorias y las recidivas. Resultados: Se incluyeron un total de 101 pacientes (77 en el gru-po AA, y 24 en el grupo NA), sin diferencias en las características demográficas ni en los hallazgos intraoperatorios. Se practicaron untotal de 36 resecciones intestinales (24 en el grupo AA; 10 en el grupoNA), sin diferencias en el tiempo quirúrgico (55,7 min en el grupo AAfrente a 61,2 min en el grupo NA; p = 0,587) ni en la estancia hospi-talaria (mediana de 5 días en ambos grupos). Tampoco se registrarondiferencias en términos de complicaciones posoperatorias o recidivasentre los dos grupos. El análisis estratificado mostró que la resecciónintestinal incrementa el tiempo quirúrgico, la estancia hospitalaria y las complicaciones posoperatorias, con independencia de si se lleva a caboapendicectomía asociada o no.(AU)

Background: Surgical treatment of ileo-colic intussusception (ICI)has been reported as the second cause of emergency laparotomy inchildren. The performance of incidental appendectomy after surgicalreduction is currently controversial. The aim is to analyse the outcomesof performing incidental appendectomy after surgical ICI reduction withor without associated bowel resection. Materials and methods: A retrospective study was performed inpatients with ICI episodes, who underwent surgical treatment in ourinstitution between 2005-2019. Patients were divided in two groupsaccording to the performance of associated appendectomy (AA group)or not (NA group). Subsequently, a stratified analysis was performedaccording to the need for bowel resection in both groups. Demographicvariables, intraoperative findings, surgical time, hospital stay, postopera-tive complications and recurrences were analysed.Results. A total of 101 patients (77 AA group; 24 NA group) wereincluded, without differences in demographics or intraoperative findings. A total of 36 bowel resections were performed (24 group AA; 10 groupNA), with no differences in surgical time (55.7 min in group AA vs.61.2 min in group NA; p = 0.587) or hospital stay (median 5 days in bothgroups). There were also no differences in postoperative complicationsor recurrences between the two groups. Stratified analysis showed thatbowel resection increases operative time, hospital stay and postopera-tive complications, regardless of whether associated appendectomy wasperformed or not.(AU)

Outcomes in pediatric patients with documented delays between ileocolic intussusception diagnosis and therapeutic enema attempt: evaluation of reduction efficacy and complication rate.

BACKGROUND: Ileocolic intussusception is considered a pediatric emergency, with concerns for risk of significant morbidity in children with a prolonged intussusception state. Emergent therapy is standard of care, as prior studies have shown poor outcomes in patients with long delays (> 24 h) before intervention. Various factors can result in shorter delays, and there are limited studies evaluating outcomes in these patients. This study aimed to determine if there were differences in reduction success rates associated with short in-hospital time delays. OBJECTIVE: This study is to determine enema success rate and morbidity in patients with documented time delays between intussusception diagnosis and therapeutic enema. MATERIALS AND METHODS: A retrospective evaluation of pediatric patients with intussusception at a single children's hospital between 2007 and 2019 was performed. Patient's records were reviewed for time of symptom onset, radiologic diagnosis, and attempted enema. Ultrasounds and radiographs were reviewed for bowel obstruction, free peritoneal fluid, trapped fluid around the intussusceptum, and absent bowel wall perfusion. Patients were evaluated for efficacy of reduction attempt, requirement for surgical reduction, and complications including bowel resection and bowel perforation. RESULTS: There were 175 cases of ileocolic intussusception requiring enema reduction. Successful reduction occurred in 72.2% (13/18) of cases performed within 1 h of diagnosis; 74.3% (78/105) between 1 and3 h; 73.2% (30/41) between 3 and 6 h; and 81.2% (9/11) with greater than 6 h. Need for bowel resection was not associated with short delays between diagnosis and reduction attempts (p = .07). CONCLUSIONS: There was no difference in intussusception reduction efficacy or complication rate in patients with increasing time between imaging diagnosis of ileocolic intussusception and reduction attempt, including delay intervals up to 8 h.

Appendiceal mucocele presenting as a leading point in ileocolic intussusceptions: "Case report".

INTRODUCTION AND IMPORTANCE: Appendiceal mucocele is a rare clinical scenario, which is found in 0.2-0.7 % of appendectomies. Ileocecal/ileocolic intusception caused by appendiceal mucocele is an extremely rare condition with few case reports in literatures. The treatment is surgery with the extent determined by intra-operative findings. Ultrasound and CECT scan can suggest the diagnosis, but definitive diagnosis is by histopathology. The aim of this presentation is to discuss appendiceal mucocele in terms of clinical features, diagnostic imaging and treatment. This case report can create awareness to primary care physicians, radiologists, surgeons and pathologists aiding in accurate diagnosis and early surgical intervention to prevent rupture. PRESENTATION OF THE CASE: A fifty years old woman presented with intermittent colicky peri umbilical abdominal pain of one-week duration. She had nausea, vomiting, mild abdominal distension, and failure to pass feces and flatus. Physical examination was normal. Imaging suggested ileocolic intussusceptions with cystic leading point on ultrasound, but on CECT scan, no leading point reported. Appendiceal mucocele diagnosed intra operatively and confirmed by pathology. CONCLUSION: Appendiceal mucocele is rare and can be benign or malignant. Preoperative diagnosis is often difficult. Definitive diagnosis is by histopathology. Appendiceal mucocele can rarely present with ileocolic intussusceptions. Radiologists, pathologists, primary care physicians and surgeons must be aware of this condition. Accurate preoperative diagnosis and early surgical treatment of appendiceal mucocele is important to prevent complications like pseudo myxoma peritonei(PMP), which has poor prognosis.

Delayed Repeat Contrast Enema for Treatment of Pediatric Intussusception.

INTRODUCTION: Ileocolic intussusception is a common cause of pediatric bowel obstruction. Contrast enema is successful in treating the majority of patients, and if initially unsuccessful, approximately one-third may be reduced with repeat enemas. We sought to study protocol implementation for delayed repeat enema in pediatric patients not reduced completely by an initial contrast enema. Our aims were to assess repeat enema success rates and outcome differences in preprotocol and postprotocol patients with respect to (1) intussusception recurrence, (2) surgical intervention and complication rates, and (3) length of stay. MATERIALS AND METHODS: We performed a retrospective review of treatment and clinical outcomes prior to and following protocol implementation for repeat enema for intussusception at two tertiary pediatric referral hospitals. The preprotocol period was defined from 2/2013 to 2/2016, and the postprotocol period was from 8/2016 to 11/2019. RESULTS: There were 112 patients in the preprotocol group, with 74 (66%) having successful reduction following the first enema. Of the 38 patients without successful reduction, 16 (42%) patients underwent repeat enema, and five were successful (31%). The postprotocol group included 122 patients, with 84 (69%) having successful first reduction. Of the 38 patients that failed, 25 patients (66%) underwent repeat enema, of which 13 (52%) were successful. Compared to preprotocol patients, postprotocol patients had significantly more enemas repeated and a trend toward fewer surgical interventions. CONCLUSIONS: Protocol implementation of repeat delayed enemas was significantly associated with an increased rate of repeat enemas at our institutions and reduced need for operative intervention during the index stay.

Combined Ileoileal and Ileocolic Intussusception Secondary to Inflammatory Fibroid Polyp in an Adult: A Case Report.

Intestinal intussusception is relatively rare in adults and accounts for approximately 5% of intestinal obstruction. Intussusception is classified into subtypes according to the location, including ileoileal, ileocolic, ileo-ileocolic, colo-colic, jejuno-ileal, or jejuno-jejunal; the ileocolic type being the most common. However, intussusception of a combination of different subtypes has rarely been reported in the available literature. Abdominal computed tomography (CT) is the most accurate tool to evaluate intestinal intussusception. The pathological lead point in the intestine typically results in adult intussusception. Surgical intervention is usually adopted in cases of adult intussusception due to a high incidence of underlying bowel malignancy. An inflammatory fibroid polyp (IFP) is one of the uncommon benign neoplasms of the gastrointestinal (GI) system, which can result in intestinal intussusception. Herein, we present a case of a 50-year-old female with combined ileoileal and ileocolic intussusception, which was initially diagnosed by abdominal CT. Therefore, laparoscopic right hemicolectomy surgery was performed, confirming the final diagnosis as ileoileal and ileocolic intussusception secondary to IFP.

Point-of-Care Ultrasound For Differentiating Ileocolic From Small Bowel-Small Bowel Intussusception.

BACKGROUND: Intussusception is a common pediatric emergency. The two types of intussusception are ileocolic intussusception (ICI) and small bowel-small bowel intussusception (SB-SBI), and neither are easily distinguished clinically. ICI requires radiology personnel and potentially surgical assistance for its reduction. SB-SBI is managed expectantly, as many resolve spontaneously. Differentiating between ICI and SB-SBI through point-of-care ultrasound (POCUS) requires an understanding of their salient features. Identification of the correct type of intussusception immediately assists decision making and patient disposition. OBJECTIVE OF THE REVIEW: Our objective was to provide guidance on POCUS technique for intussusception identification, and to review the ultrasound literature differentiating ICI from SB-SBI. METHODS: We systematically searched 3 separate databases and gray literature to identify articles that met our criteria and assessed them for final review. The final articles were graded for quality using The National Institutes of Health quality assessment tool for observational cohort and cross-sectional studies. RESULTS: A total of 858 articles were identified. Six articles were included in the final review. All studies were conducted in pediatric patients in different countries. Most were found to have a fair quality of evidence. The linear transducer is used when evaluating intussusception. Both ICI and SB-SBI are identified easily on POCUS, but they differ sonographically with respect to region within the abdomen, intussusception parameters, lymph nodes, and other salient features seen on real-time video. CONCLUSIONS: ICI and SB-SBI can be identified and differentiated using several sonographic features. POCUS is capable of expeditiously aiding the emergency physician's decision making and disposition when managing intussusception.

Successful reduction of recalcitrant ileocolic intussusception with a double-balloon-tipped catheter that prevents air leaks and catheter expulsion.

Noninvasive reduction of ileocolic intussusception requires increasing intracolonic pressure via gas or liquid administered through a rectal catheter. A tight seal around the catheter is required to maintain intracolonic pressures and this tight seal is difficult to maintain with existing techniques. I describe the safe and effective use of a catheter with 2 balloons near the tip that surround the anus internally and externally to prevent leakage of air during an enema on a toddler after failure with a single-balloon tipped catheter.

Factors Associated with Failure of Pneumatic Reduction in Children with Ileocolic Intussusception.

Intussusception is one of the most common causes of intestinal obstruction in children. Pneumatic reduction is the treatment of choice and has a high success rate. The most common cause of pneumatic reduction failure is the presence of a pathological leading point. We aimed to identify other factors that can lead to pneumatic reduction failure in children with ileocolic intussusception. This was a retrospective study conducted in two centers. Data were collected from January 2013 to December 2014. A total of 156 patients were diagnosed with intussusception and underwent pneumatic reduction, with the exception of one patient with peritonitis. We included patients with ileocolic-type intussusception without apparent pathological leading points. Logistic regression analysis of clinical parameters was performed to identify factors associated with pneumatic reduction failure. Of 156 patients diagnosed with intussusception in both hospitals, 145 were enrolled in the study. The overall efficacy of pneumatic reduction was 85.7%, and surgical reduction was performed in 21 patients. Univariate analysis showed that a high segmented neutrophil count, low hemoglobin level, high body temperature, and higher weight percentile were associated with pneumatic reduction failure. Multivariate analysis showed that a high segmented neutrophil count, low hemoglobin level, and higher weight percentile were significantly associated with pneumatic reduction failure. Pneumatic reduction is safe and effective as a first-line treatment for pediatric intussusception. However, a high segmented neutrophil count, low hemoglobin level, and higher weight percentile are associated with the failure of this treatment.

Appendix around Ileocolic Intussusception with Acute Appendicitis: A Rare Presentation.

Intussusception and appendicitis share similar clinical features. However, their concurrent occurrence is exceedingly rare. Appendix involvement in intussusception must be ruled out when appendix is not visualized on high-resolution ultrasonography in cases with ileocolic intussusception. This case report describes the sonological appearance of a combination of ileocolic intussusception with concurrent acute appendicitis in a 4-year-old child.

Accurately distinguishing pediatric ileocolic intussusception from small-bowel intussusception using ultrasonography.

PURPOSE: The clinical treatment of ileocolic intussusception is different from that of small-bowel intussusception (SBI). This study aimed to analyze the differences between the two groups using ultrasonoscopy to avoid misdiagnosis. METHODS: We conducted a retrospective study of intussusception in patients aged 0-18 years from September 2018 to March 2020. Clinical and ultrasonoscopy data were reviewed. RESULTS: A total of 183 cases of intussusception were included in this study (123 cases of SBI and 60 of ileocolic intussusception). Ultrasonoscopy features that were significantly different between the two groups (p<0.05) included the lesion diameter, fat core thickness, outer wall thickness, lymph nodes inside intussusception, and lesion length. In the SBI group, 85% (104/123) of the normal ileocecal region was found in the right lower quadrant and 98% (120/123) of the normal ascending colon was found in the right side of the abdomen. In the ileocolic intussusception group, none of the normal ileocecal region was found and the ascending colon was found in only 5 cases (8%) (p<0.05). CONCLUSIONS: The use of ultrasonography is the most practical method to distinguish SBI from ileocolic intussusception. In addition to comparing the differences between lesions, conventional probing of the ileocecal region and ascending colon will help to accurately differentiate between the types of intussusception and avoid misdiagnosis. LEVELS OF EVIDENCE: Diagnostic.

Point-of-care ultrasound diagnosis of small bowel-small bowel vs ileocolic intussusception.

BACKGROUND: Identification of intussusception is feasible with emergency department (ED) point-of-care ultrasound (PoCUS) due to its ease-of-use and high accuracy. Little is known about the clinical characteristics and outcomes of small bowel-small bowel intussusception (SB-SBI) relative to ileocolic intussusception (ICI) identified by PoCUS. METHODS: We conducted a retrospective cohort study at a single, tertiary care, urban pediatric ED of intussusception identified by PoCUS. Demographic information, clinical data, and outcomes, including clinical course, intussusception characteristics, recurrence rates, and interobserver agreement (Cohen's kappa), were evaluated. RESULTS: ED PoCUS identified thirty-seven patients with intussusception over a 4-year period. Twenty-one patients (57%) identified were SB-SBI. The median age was 54 months (IQR 35-76 months) for SB-SBI and 8 months (IQR 5.8-13.5 months) for ICI. The mean diameter was 1.68 cm (SD 0.52 cm) for SB-SBI and 2.74 cm (SD 0.43 cm) for ICI (p < 0.05). Two of 21 (9.5%) SB-SBI subjects required surgical intervention, while the rest spontaneously reduced. Fourteen of 16 (88%) ICI subjects required intervention. There were two (9.5%) recurrences of SB-SBI and 1 (6.3%) recurrence of ICI confirmed on PoCUS. Cohen's kappa was 0.85 (95% CI 0.68-1.0). CONCLUSIONS: SB-SBI may be identified more frequently than previously thought when screened with ED PoCUS. Older children with SB-SBI may have underlying lead-points and may require surgical intervention. PoCUS can help differentiate between variants of intussusception that range from a surgical emergency to a transient source of abdominal pain that may be recurrent and otherwise unexplained, allowing clinicians to better manage these patients accordingly.