Publications by authors named "Nishida Nanako"

Article Synopsis
  • * Fourteen patients were analyzed, showing types of IMD such as isolated hypoganglionosis, extensive aganglionosis, and chronic idiopathic intestinal pseudo-obstruction, with a notable 50% mortality rate primarily due to intestinal failure-related liver disease and catheter infections.
  • * Cholestasis emerged as a significant predictor of prognosis, highlighting the need to focus on preventing complications like liver disease and infections from long-term TPN to ultimately reduce mortality rates in these patients.
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  • Transumbilical laparoscopy-assisted appendectomy (TULAA) is preferred for treating appendicitis but is harder for trainees to learn than conventional three-port laparoscopic appendectomy (CTPLA) in children.
  • A study analyzed surgical outcomes of 225 pediatric patients with appendicitis treated via either TULAA or CTPLA by pediatric surgeons in training from April 2016 to December 2022.
  • Results showed TULAA had shorter operative and pneumoperitoneum times compared to CTPLA; however, TULAA had a higher—but not statistically significant—rate of surgical site infections, particularly notable in uncomplicated cases.
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Aim: Creation of an overlapped anastomosis using handsewn sutures for common enterotomy is very popular in robotic right colectomy (RRC) with intracorpareal anastomosis (IA). The aim of this study is to present a simple method for constructing a sutureless overlapped anastomosis using a 60 mm linear stapler with a reinforced bioabsorbable material in RRC with IA.

Method: The distal ileum and proximal colon were put in overlapping positions.

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Background: Few studies have analyzed the effect of the size of the working space in training on the acquisition of endoscopic skills. In this study, adult- and infant-sized dry boxes (DBs) were used to verify how the size of the working space in training affects forceps manipulation and learning curve.

Material And Methods: Seventy-two medical students were enrolled.

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  • Researchers developed a new type of nanocomposite material (CSiN) by combining negatively charged clay nanosheets with positively charged silica, achieving 84% coverage of silica.
  • Experiments showed that the clay nanosheets form a stable single layer over the silica and don’t detach in water, preventing cationic porphyrin dyes from reaching the silica surface.
  • This innovative material creates a unique surface that effectively adsorbs dyes without allowing them to clump together, highlighting its potential for various applications.
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  • Anovestibular fistula (AVF) is the most common type of anorectal malformation (ARM) in females, and a study analyzed the long-term defecation function in 88 female patients post-surgery.* -
  • The research evaluated patient outcomes based on surgeries (anal transposition and anterior sagittal anorectoplasty) and found that overall, patients achieved “excellent” bowel function by age nine, though the type of surgery influenced results.* -
  • Ultimately, while most AVF patients experienced positive bowel function outcomes, the study highlighted the importance of individualized long-term management based on surgical approach and specific complications.*
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  • - The study evaluated differences between biliary atresia patients with a bleeding tendency (BT) and those without (NBT) regarding their clinical features and outcomes at diagnosis.
  • - Among the 93 patients, 9.7% had a BT, primarily involving intracranial hemorrhage, but no significant differences were found in age at initial visit, timing of surgery, or survival rates between the two groups.
  • - The findings suggest that timely correction of the bleeding tendency allows for early surgical intervention (KPE) in BT patients, leading to comparable survival outcomes and minimal neurological complications.
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Near-infrared (NIR) fluorescence imaging with indocyanine green (ICG) has gained popularity in pediatric surgery as it has in general surgery. In addition, a water-jet dissector (WJD) has been successfully introduced in adult hepatic surgery. Tissue structures are dissected selectively and gently by the WJD.

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We, herein, report a surgical technique for laparoscopy-assisted jejunostomy tube placement in an infant using a loop needle device to fix the jejunum and abdominal wall. A 3-year-old boy with Down's syndrome underwent nutritional management by gastrostomy due to oral feeding difficulty after radical surgery for congenital duodenal stenosis and following bile duct stenosis. However, intractable gastrostomy site leakage emerged; hence, laparoscopy-assisted gastrostomy takedown and simultaneous laparoscopy-assisted jejunostomy tube placement were planned.

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  • The study aimed to clarify the characteristics of solid organ injuries in children, analyzing cases from two institutions over a 14-year period.
  • The review included 47 cases, with liver injuries being the most common, and found that most patients were treated conservatively, while some required intervention or surgery.
  • Complications were relatively low, with no reported deaths, indicating that pediatric patients generally had positive outcomes after blunt trauma treatment at these centers.
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Background: The repair of large abdominal wall defects that cannot be closed primarily is quite challenging. The component separation technique (CST) is a surgical approach using autologous tissue to close large abdominal wall defects. The CST requires extensive dissection between the abdominal skin and the anterior sheath of the rectus abdominis muscle.

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Introduction: Surgical management of neuroblastoma (NB) has been performed by open procedures for decades. However, advances in surgical devices and technology have made minimally invasive surgery safe and reproducible. In this study, we compared open and laparoscopic surgery regarding biopsy success and curative resection to determine the safety and feasibility of laparoscopic surgery for pediatric patients with adrenal NB.

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  • Mucoepidermoid carcinoma, a rare lung cancer in children, can cause obstructive symptoms and lead to lung collapse.
  • A case involved a six-year-old girl with recurrent pneumonia due to a mass in her right upper lobe, resulting in a successful lobectomy after confirming the tumor's position with bronchoscopy.
  • Intraoperative bronchoscopy proved essential for ensuring complete removal of the tumor while protecting surrounding lung tissue and maintaining respiratory function.
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Severely neurologically impaired patients sometimes require anti-reflux surgery with preceding gastrostomy. We apply a traction technique for laparoscopic fundoplication (LF) without gastrostomy takedown (GTD) in such cases. We conducted a multicenter review to assess the feasibility of our approach.

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Purpose: Midgut volvulus is an urgent disease often occurring in neonates. This study clarified the clinical features of midgut volvulus and evaluated predictors to avoid bowel resection.

Methods: This bi-center retrospective study enrolled 48 patients who underwent surgery for intestinal malrotation between 2010 and 2022.

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  • An infant girl with congenital biliary dilation (CBD) was diagnosed with severe biliary cirrhosis after being transferred to a hospital for liver dysfunction and a significantly dilated common bile duct.
  • Initial treatment involved laparoscopic exploration and bile drainage, revealing severe liver damage and abnormal bile duct structures.
  • After weeks of supportive therapy, she underwent successful laparoscopic surgery to remove part of the bile duct and connect it to the intestine, which resulted in improved liver function and bile excretion.
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Article Synopsis
  • - The study examined the effectiveness of repetitive laparoscopic surgery training with a simulator specific to congenital biliary dilatation (CBD) in kids, focusing on skill improvement and clinical surgery outcomes.
  • - Four pediatric surgeons practiced laparoscopic hepaticojejunostomy three times using a high-fidelity simulator, resulting in significantly faster task completion times by the third attempt, although other performance metrics like forceps path length and velocity showed no significant changes.
  • - Clinical results for 13 CBD surgeries performed by these trained surgeons indicated successful outcomes with no conversion to open surgery, minimal blood loss, and no serious complications, suggesting that simulator training enhances laparoscopic surgical safety and quality.
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Intradiaphragmatic extralobar pulmonary sequestration (IDEPS) is considered to be very rare among extralobar pulmonary sequestration (EPS), and IDEPS combined with congenital diaphragmatic hernia (CDH) with sac is extremely rare. The patient was a neonatal girl. Left-sided CDH with a hernia sac was diagnosed based on computed tomography (CT).

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Background: Tubo-ovarian abscess (TOA) is generally seen in sexually active women. It is rarely reported in virginal adolescent girls.

Case: A 12-year-old virginal girl was referred to us for repeated fever and right lower abdominal pain.

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