Research Topics
| Tadao OkadaSummaryAffiliation: Hokkaido University Country: Japan Publications
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Detail Information
Publications
Irreducible indirect inguinal hernia containing uterus, ovaries, and Fallopian tubesT Okada
Department of Pediatric Surgery, Hokkaido University Hospital, Kita ku, Kita 14, Nishi 5, Sapporo, 060 8648, Japan
Hernia 16:471-3. 2012..Furthermore, the possible cause of indirect inguinal hernia containing the uterus, ovaries, and Fallopian tubes was explored...
Perforation of the piriform recessus by a swallowed glass splinter presenting as pneumomediastinum in a childT Okada
Department of Pediatric Surgery, Hokkaido University School of Medicine, Kita ku, Kita 15, Nishi 7, 060 8638 Sapporo, Japan
Pediatr Surg Int 20:643-5. 2004..The literature on such injuries is reviewed here, and the problems associated with treating children with perforation of the piriform recessus and mediastinitis caused by swallowed glass splinters are discussed...
Delay of gastric emptying measured by 13C-acetate breath test in neurologically impaired children with gastroesophageal refluxT Okada
Department of Pediatric Surgery, Third Internal Medicine, Endoscopy, First Surgery, Hokkaido University School of Medicine, Sapporo, Japan
Eur J Pediatr Surg 15:77-81. 2005..0045). Gastric emptying studies can be easily and reliably carried out in children with NI using (13)C- ABT. We showed that we were able to determine the gastric emptying rate by (13)C- ABT in patients with GER due to NI...
Bleeding disorder as the first symptom of biliary atresiaT Okada
Department of Pediatric Surgery, Pathology and First Surgery, Hokkaido University School of Medicine, Sapporo, Japan
Eur J Pediatr Surg 15:295-9. 2005..Subsequently, BA was suspected to be the cause of these bleeding disorders based on imaging findings. BA should therefore be considered in all infants with sudden onset of a tendency to bleed...
Postoperative portal and splenic vein thrombosis in children: identification of risk factorsTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Kita ku, Kita 15, Nishi 7, Sapporo, 060 8638, Japan
Pediatr Surg Int 21:918-21. 2005..We conclude that clinicians should consider that PSVT might occur after splenectomy for a huge splenomegaly or after a total colectomy for ulcerative colitis...
Management of childhood and adolescent thyroid carcinoma: long-term follow-up and clinical characteristicsT Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Nishi, Sapporo, Japan
Eur J Pediatr Surg 16:8-13. 2006..This analysis was performed to evaluate clinical factors such as local tumor control, control of distant metastasis, survival, and complications in children and adolescents with thyroid carcinoma...
Histological differentiation between prenatally diagnosed choledochal cyst and type I cystic biliary atresia using liver biopsy specimensT Okada
Department of Pediatric Surgery, First Surgery, Hokkaido University School of Medicine, Nidhi, Sapporo, Japan
Eur J Pediatr Surg 16:28-33. 2006....
Multiple mesenteric teratomas: usefulness of spiral computed tomography with 3-dimensional reconstructionTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, and Hokkaido University Hospital, Sapporo 060 8638, Japan
J Pediatr Surg 41:868-71. 2006..This report describes the use of spiral computed tomography with 3-dimensional reconstruction for visualization of the extent of multiple mesenteric teratomas...
Effective esophageal balloon dilation for esophageal stenosis in recessive dystrophic epidermolysis bullosaT Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
Eur J Pediatr Surg 16:115-9. 2006..The literature on such injuries is reviewed here, and the problems associated with the treatment of children with esophageal stenosis associated with RDEB are discussed...
Management and algorithm for focal nodular hyperplasia of the liver in childrenT Okada
Department of Pediatric Surgery, First Surgery, Radiology, Hokkaido University Graduate School of Medicine, and Hokkaido University Hospital, Pathology, Sapporo, Japan
Eur J Pediatr Surg 16:235-40. 2006..The aim of this study was to determine an appropriate management plan for childhood and adolescent FNH, in particular to establish an algorithm for preoperative diagnosis and treatment...
Comparison between prenatally diagnosed choledochal cyst and type-1 cystic biliary atresia by CD56-immunostaining using liver biopsy specimensT Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
Eur J Pediatr Surg 17:6-11. 2007....
Usefulness of axial planes of helical computed tomography for diagnosis of pancreaticobiliary maljunction in early infants with negative findings on magnetic resonance cholangiopancreatographyTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo 060 8638, Japan
J Pediatr Surg 43:579-82. 2008....
Laparoscopic liver biopsy using cup-shaped punch biopsy forceps and argon beam coagulator in childrenTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Kita ku, Kita 15, Nishi 7, Sapporo, 060 8638, Japan
Pediatr Surg Int 23:947-51. 2007..Laparoscopic liver biopsy combining the use of laparoscopic CPBF and an ABC handpiece can be performed safely, is less invasive, and provides sufficient samples for examination both by microscopy and enzyme activity assays...
Focal nodular hyperplasia of the liver: usefulness of superparamagnetic iron oxide-enhanced magnetic resonance imagingTadao Okada
Department of Pediatric Surgery, 1st Surgery, Pediatrics, Pathology, Hokkaido University School of Medicine, Sapporo, 060 8638, Japan
J Pediatr Surg 40:E21-5. 2005..This report describes the use of superparamagnetic iron oxide-enhanced magnetic resonance imaging to diagnose fibronodular hyperplasia of the liver in a 12-year-old girl...
Hyperbaric oxygenation therapy for simple adhesive postoperative intestinal obstruction in children: comparison of the use of a short tube versus a long tubeT Okada
Department of Pediatric Surgery, Chiba University, Graduate School of Medicine, Chiba, Japan
Eur J Pediatr Surg 14:240-4. 2004..Therefore, we conclude that the use of an LT is not necessarily required for HBO therapy for simple APIO...
Disorders of interstitial cells of Cajal in a neonate with segmental dilatation of the intestineTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo 060 8638, Japan
J Pediatr Surg 45:e11-4. 2010..Furthermore, the possible neuropathic cause of SDI complicated with disorders of ICC was explored in this report...
Hyperplastic polyp of the gallbladder associated with pancreaticobiliary maljunction in a 9-year-old girlTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Kita ku, Kita 15, Nishi 7, Sapporo, 060 8638, Japan
Pediatr Surg Int 25:999-1002. 2009..Furthermore, the possible cause of the onset of hyperplastic polyp of the gallbladder complicated by PBM was explored in this report...
Multicystic dysplastic kidney detected by prenatal ultrasonography: natural history and conservative managementT Okada
Department of Pediatric Surgery, Graduate School of Medicine, Chiba University, 1 8 1 Inohana, 260 8677 Chuo ku Chiba, Japan
Pediatr Surg Int 19:207-10. 2003..The results of this study support the conclusion that a nonsurgical approach for patients with MCDK is advisable...
Microbial flora alterations in jejunum and colon after chemical bowel preparation before Kasai hepatoportojejunostomyT Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
Eur J Pediatr Surg 17:304-7. 2007....
Idiopathic thrombocytopenic purpura complicated with biliary atresia: a rare occurrence and literature reviewTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
J Pediatr Surg 44:e21-3. 2009..We review the literature on this type of relationship between BA and ITP and discuss the clinical features of this complication. Furthermore, the possible cause of the onset of ITP complicated with BA was explored in this report...
Management and outcome in prenatally diagnosed sacrococcygeal teratomasTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
Pediatr Int 50:576-80. 2008..The aim of the present study was to retrospectively determine the clinical factors affecting the outcome after birth in prenatally diagnosed sacrococcygeal teratomas (SCT)...
Alveolar echinococcosis of the liver in childrenTadashi Yoshida
Department of Digestive and General Surgery, Hokkaido University Graduate School of Medicine, Kita ku, Kita 15, Nishi 7, Sapporo 060 8638, Japan
J Hepatobiliary Pancreat Sci 17:152-7. 2010..Alveolar echinococcosis of the liver (AEL) is a zoonosis that is distributed in cold regions of the northern hemisphere. The disease is mostly found in adults and rarely in pediatric patients because it tends to be slow growing...
CD56-immunostaining of the extrahepatic biliary tree as an indicator of clinical outcome in biliary atresia: a preliminary reportTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
Turk J Pediatr 50:542-8. 2008..Our present findings support the possibility of discriminating between good and poor prognoses of clinical outcome after Kasai portoenterostomy...
Postnatal management for prenatally diagnosed choledochal cystsTadao Okada
Department of Pediatric Surgery, Hokkaido University School of Medicine, Sapporo, Japan
J Pediatr Surg 39:1055-8. 2004..PTCD appears to be indicated only under certain circumstances, and delayed primary definitive surgery should be performed as early as possible thereafter...
Optimal strategy of preoperative transcatheter arterial chemoembolization for hepatoblastomaYasuhiro Ohtsuka
Department of Pediatric Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuou-ku, Chiba 260-8677, Japan
Surg Today 34:127-33. 2004..For patients with distant metastases, their complete eradication with systemic chemotherapy prior to TACE is essential...
Chylous ascites caused by resection of a choledochal cystTatsuzo Mizukami
Department of 1st Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
Afr J Paediatr Surg 9:68-70. 2012..No fasting might be a therapeutic option of paediatric postoperative chylous ascites after the resection of a choledochal cyst if the outflow volume of chylous ascites is small...
Pediatric alveolar echinococcosis invading the diaphragm and spreading to the chest and abdominal wallShohei Honda
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo 060 8638, Japan
J Pediatr Surg 45:e13-6. 2010..She was treated by surgical extirpation and albendazole therapy. In advanced hepatic AE, combined therapy of surgical and medical intervention is thought to improve the prognosis...
Rapidly enlarging solitary nonparasitic cyst of the liver in a child presenting as acute abdomenTakeshi Aoyagi
Department of First Surgery, Hokkaido University Graduate School of Medicine, Kita ku, Kita 15, Nishi 7, Sapporo, 060 8638, Japan
Pediatr Surg Int 23:1007-9. 2007..Moreover, we evaluate the surgical procedures and conclude that total excision of the cysts when possible is a suitable treatment procedure in children...
Hirschsprung's disease, acrocallosal syndrome, and congenital hydrocephalus: report of 2 patients and literature reviewShigeru Nakakimura
Department of Pediatric Surgery, Neurosurgery, First Surgery, Hokkaido University Graduate School of Medicine, Sapporo, 060 8648, Japan
J Pediatr Surg 43:E13-7. 2008..Furthermore, it is desirable to select a line treatment of HSCR to prevent infection of the ventriculoperitoneal shunt if the patient requires it...
Menkes disease with gastroesophageal reflux disease and successful surgical treatment: a case report and literature reviewTadao Okada
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
Turk J Pediatr 52:333-5. 2010..We review the literature on this relationship between MD and GERD, and discuss the clinical features of this association. Furthermore, the possible cause of the onset of GERD complicated with MD is explored in this report...
Meconium pseudocyst with particular pathologic findings: a case report and review of the literatureMasashi Minato
Department of Pediatric Surgery, Hokkaido University Hospital, Sapporo, Japan
J Pediatr Surg 47:e9-12. 2012..However, for a meconium pseudocyst, 1-stage intestinal resection with primary anastomosis may be recommended. A meconium pseudocyst may be treatable using 1-stage resection based on histopathologic features...
Nonfamilial juvenile polyposis coli in a child: report of a caseTadao Okada
Department of Pediatric Surgery, First Surgery, Endoscopy and Pathology, Hokkaido University, School of Medicine, N 15, W 7, Kita-ku, Sapporo 060-8638, Japan
Surg Today 34:609-12. 2004..We emphasize that family members of patients diagnosed with juvenile polyposis should be questioned and undergo appropriate examinations of the entire intestine from the stomach to the rectum...
Hemorrhagic shock due to spontaneous rupture of adrenal neuroblastoma in an infant: a rare case and review of the literatureShohei Honda
Departments of Pediatric Surgery Surgical Pathology, Hokkaido University Hospital, Sapporo, Japan
J Pediatr Hematol Oncol 34:635-7. 2012..An appropriate surgical treatment for this condition must be discussed according to the patient's general state and the tumor features, such as staging, the origin, and local invasiveness...
Effects of trans and conjugated LC N-3 polyunsaturated fatty acids on lipid composition and abdominal fat weight in ratsT Okada
Graduate School of Fisheries Sciences, Faculty of Fisheries, Hokkaido Univ, 3 1 Minatocho, Hakodateshi, Hokkaido, Japan
J Food Sci 73:H201-6. 2008..Rodents fed trans DHA did not have detectable levels of these fatty acid isomers in their livers, suggesting either quick metabolism or a difficulty with bio-absorption...
Hepatic osteodystrophy complicated with bone fracture in early infants with biliary atresiaTadao Okada
Tadao Okada, Shohei Honda, Hisayuki Miyagi, Masashi Minato, Department of Pediatric Surgery, Hokkaido University Hospital, Sapporo 060 8648, Japan
World J Hepatol 4:284-7. 2012..Moreover, we conclude that clinicians should consider BA in infants with bone fracture during early infancy...
A 5-year-old boy with unicentric Castleman disease affecting the mesentery: utility of serum IL-6 level and (18)F-FDG PET for diagnosisNariaki Toita
Department of Pediatrics, Graduate School of Medicine, Japan
J Pediatr Hematol Oncol 31:693-5. 2009..Our case also supported an important role of interleukin-6 in the pathophysiology of plasma cell CD...
Chylous ascites after nephrectomy without lymphadenectomy for malignant rhabdoid tumor of the kidney: A rare occurrence and literature reviewTakahiro Einama
1 Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
J Indian Assoc Pediatr Surg 14:215-7. 2009..The literature on CA after nephrectomy without lymphadenectomy for MRTK is reviewed herein, and the clinical problems of postoperative CA are discussed...
Nissen fundoplication for gastroesophageal reflux: No deterioration of gastric emptying measured by C-acetate breath testTadao Okada
Department of Pediatric Surgery, Hokkaido University Hospital, Sapporo, Japan
J Indian Assoc Pediatr Surg 16:137-41. 2011..To study the gastric emptying 30 days after laparoscopic Nissen fundoplication (NF) in gastroesophageal reflux...
Incarcerated femoral hernia with ovary and fallopian tube torsion in an infant: a rare occurrenceMasaomi Ichinokawa
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Kita ku, Kita 15, Nishi 7, Sapporo 060 8638, Japan
Pediatr Surg Int 24:1149-51. 2008..She has experienced no recurrence of femoral hernia for 3 years. We must consider incarcerated femoral hernia in the differential diagnosis for infants with groin redness and swelling...
Nephron-sparing surgery for multilocular cyst of the kidney in a childTadao Okada
Department of Pediatric Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
J Pediatr Surg 38:1689-92. 2003..After reviewing other cases, we discuss the clinical characteristics of multilocular cyst of the kidney and emphasize the cystic partially differentiated nephroblastoma as a differential diagnosis...
Endoscopic internal biliary drainage in a child with malignant obstructive jaundice caused by neuroblastomaTadao Okada
Department of Paediatric Surgery, Chiba University, School of Medicine, 1 8 1 Inohana, Chuo Ku, Chiba 260 8677, Japan
Pediatr Radiol 33:133-5. 2003..This novel endoscopic internal biliary drainage procedure was safe and effective even for a child, and improved her quality of life. We further review other treatment options available for malignant obstructive jaundice in children...
Strategy of management for congenital biliary dilatation in early infancyYasuhiro Ohtsuka
Department of Pediatric Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
J Pediatr Surg 37:1173-6. 2002..However, PTCD might be used under strict consideration of indication and careful management for patients with extremely poor surgical risk...
Paraovarian cyst with torsion in childrenTadao Okada
Departments of Pediatric Surgery and Radiology, Chiba University, School of Medicine, and the Department of Pathology, Chiba Children s Hospital, Chiba, Japan
J Pediatr Surg 37:937-40. 2002..This report describes 2 cases of surgically proven paraovarian cyst with torsion. It is important to be aware of torsion as a complication of paraovarian cyst...
Pulsed Doppler sonography of the hilar renal artery: differentiation of obstructive from nonobstructive hydronephrosis in childrenT Okada
Department of Pediatric Surgery, Chiba University, School of Medicine, Chiba, Japan
J Pediatr Surg 36:416-20. 2001..CONCLUSION: A pulsed Doppler evaluation of the hilar renal artery is useful for detecting an obstructive UPJ stricture compared with assessing arcuate or cortical renal arteries...
Pulsed Doppler sonography for the diagnosis of strangulation in small bowel obstructionT Okada
Department of Pediatric Surgery, Chiba University, School of Medicine, Chiba, Japan
J Pediatr Surg 36:430-5. 2001..CONCLUSION: Analysis of the hemodynamics in the SMA using PDS is useful to differentiate strangulating obstruction from simple obstruction...
Successful surgical treatment of two cases of congenital chylous ascitesT Mitsunaga
Department of Pediatric Surgery, Chiba University School of Medicine, Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8677 Japan
J Pediatr Surg 36:1717-9. 2001..The present laparoscopic lymphoid dye test is a novel and useful procedure that allows surgeons to identify the exact location of chylous leakage, and thus successfully ligate the lymphatic duct...
Management of blunt hepatic injury in children: usefulness of emergency transcatheter arterial embolizationY Ohtsuka
Department of Pediatric Surgery, Graduate School of Medicine, Chiba University 1 8 1, Inohana, Chuou ku, Chiba, 260 8677, Japan
Pediatr Surg Int 19:29-34. 2003..We propose that emergency TAE should be considered as an initial treatment for severe BHI in children...
Cystic thymoma in a child: a rare case and review of the literatureS Honda
Department of Pediatric Surgery, Hokkaido University Graduate School of Medicine, Kita ku, Kita 15, Nishi 7, Sapporo, 060 8638, Japan
Pediatr Surg Int 23:1015-7. 2007..The microscopic findings were characteristic of cystic thymoma. The literature on cystic thymoma is reviewed here and the clinical characteristics of cystic thymoma are discussed...
