To fill the large bone defect after bone and soft tissue tumor resection, there are several options such as tumor prosthesis, bone cement with intramedullary nail, autogenous bone graft and allograft. We had used isotrophic autogenous bone graft by using the heat-treated bone removed from tumor site. We analyzed the periods for junctional union and regeneration of autoclaved or low-heat treated groups, and compared these two methods to know which method is better for reconstruction of the bone defect after tumor resection. From Jan. 1987 to Sept. 1993, twelve patients took heat-treated autogenous bone graft: 6 auto- claved, and 6 low heat-treated. Each group had 10 places of junction sites between host and grafted bone. The tumors were 2 cases of osteosarcoma, 3 parosteal osteosarcoma, 2 Ewing's sarcoma, 2 malignant soft tissue tumors, 1 giant cell tumor, and 2 metastases from thyroid cancer and synovial sarcoma. The graft sites were 4 in humerus, 4 pelvis and 4 femur. Two cases showed marginal surgical margin and others wide surgical margin. Here we compare4 the difference between autoclaved group(120℃, 2 atm., 20 min) and low heat-treated group(65℃, 30 min. in water) on the aspect of complications and period to achieve junctional union to host bone. Average follow-up period was 25.3(11 to 88) months. Graft related complications in autoclaved group were bone resorption(2 sites), fracture of grafted bone(2). For low heat-treated group there was no such complication. Nonunion occurred in 3 sites for autoclaved group and 1 for low heat-treated group. Average period for junctional union was 7.3 months(5 to 10 months) for autoclaved group and 6.1 months(5 to 9 months) for low heat-treated group. With these results, heat treated bone autograft may have several advantages such as easy accessi- bility, low cost and anatomical reconstruction of the bone defect. The low heat-treated autogenous bone graft may have more advantages than that of the autoclaved one, and this method may be ratio- nalized to fill the large bone defect made by tumor resection.
Allografts ; Autografts ; Femur ; Follow-Up Studies ; Giant Cell Tumors ; Hot Temperature ; Humans ; Humerus ; Methods ; Neoplasm Metastasis ; Osteosarcoma ; Pelvis ; Prostheses and Implants ; Regeneration ; Sarcoma, Ewing ; Sarcoma, Synovial ; Thyroid Neoplasms ; Transplants

PURPOSE: Among the surgeries that can be performed for patients with acute peptic ulcer perforation, the frequency of performing laparoscopic surgeries is gradually increasing and it is being reported that laparoscopic surgeries have many advantages over laparotomies. So we will examined if laparoscopic surgery has advantages as compared to open surgery for appropriately selected patients. METHODS: The subjects were 15 patients who were diagnosed with peptic ulcer perforation and they were operated on by a single surgeon between September 2007 and January 2009 at the National Medical Center. The subjects were divided into an LG and an OG. Statistical analyses were performed using two-tailed students T-tests. RESULTS: There were 6 patients in the LG and 9 patients in the OG. All the patients in the two groups were male. The time until fist flatulence was 1.6 days in the LG and 2.6 days in the OG. The time until the first oral intake was 3 days in the LG and 3.4 days in the OG. The time during which pain control was necessary was 2.6 (range: 2~4) days in the LG and 3.3 (range: 2~4) days in the OG. The number of days of the hospital stay after surgery was 5.6 days (range: 4~7) in the LG and 10 days (range: 6~26) in the OG. There were 2 cases of complications in the OG only, and all of them were wound infections. CONCLUSION: It is thought that laparoscopic surgeries can be performed relatively easily and safely for patients with peptic ulcer perforation by selecting appropriate patients.
Flatulence ; Humans ; Laparoscopy ; Laparotomy ; Length of Stay ; Male ; Peptic Ulcer ; Peptic Ulcer Perforation

PURPOSE: With the introduction of H. pylori eradication and proton pump inhibitor, the operative treatments for the acute or chronic complications of peptic ulcer, such as perforation, bleeding and stricture, have decreased. Also owing to the development of non-operative treatment such as interventional endoscopic treatment, the surgical approach to the acute complications, like perforation and bleeding, has diminished. The non-operative treatments for the stricture and obstruction of chronic peptic ulcer in part related to discontinuation of medication have not been satisfactory. We analyzed the clinical outcomes of the patients who underwent operative treatment for outlet obstruction with peptic ulcer. Materials of Methods: From January 1994 to December 2007, we reviewed 31 patients who had been operated on at the National Medical Center for peptic ulcer obstruction. We excluded the cases of adhesive obstructions that were caused by a former ulcer operation and also the cases of obstructions found during emergency operations for treating perforation and bleeding. We classified the surgical treatment group into the bypass operation group and the surgical resection group. We evaluated the effects of the operations by the Visick score. The recurrences were confirmed only by the endoscopic observation of peptic ulcer. RESULTS: The number of patients in the bypass operation group was 6 (19.4%) and that of resection group was 25 (80.6%). The mean age was 57.5 (25~81) years. The number of male patients was 29 (93.5%) and the number of females was 2 (6.5%). The mean symptom duration was 29.6 months. There were 19 smokers (61.3%), 6 NSAID users (19.4%) and 7 H. pylori positive patients (22.6%). Two patients underwent endoscopic balloon dilatation with no success. The locations of lesion were the stomach, the duodenum and both in 9, 20 and 2 cases, respectively. There were operative complications in 13 cases (41.9%), recurrent ulcers in 2 cases (6.5%), and reoperations in 4 cases. The mean Visick score was 1.8 (1~4). There were no statistically significant clinicopathologic differences between the bypass operation group and the resection group. The two groups had 1 case each of recurrence. Although the bypass group had a greater complication rate (83.3%) than the resection group (32%), this was not statistically meaningful (P=0.175). The mean Visick score was 3.0 in the bypass group and 1.6 in the resection group, so the resection group was better (P=0.001). CONCLUSION: For a case of chronic peptic ulcer with outlet obstruction, even though it has been reported that endoscopic balloon dilatation worked well, surgery is still regarded as an important treatment. If you consider the patients' satisfaction and the difficulty of diagnosing malignant ulcers, surgical resection should be recommended more often than a bypass operation.
Adhesives ; Constriction, Pathologic ; Dilatation ; Duodenum ; Emergencies ; Female ; Gastric Outlet Obstruction ; Hemorrhage ; Humans ; Male ; Peptic Ulcer ; Proton Pumps ; Recurrence ; Stomach ; Ulcer

OBJECTIVE: The purpose of this study is to investigate the results of treatment using stent-angioplasty for symptomatic middle cerebral arterial (MCA) stenosis and comparison of in-stent restenosis between drug-eluting stents (DES), bare metal coronary stents (BMS) and self-expanding stents (SES). MATERIALS AND METHODS: From Jan. 2007 to June. 2012, 34 patients (mean age +/- standard deviation: 62.9 +/- 13.6 years) with MCA stenosis were treated. Inclusion criteria were acute infarction or transient ischemic attacks (TIAs) and angiographically proven symptom related severe stenosis. Stents used for treatment were DES (n = 8), BMS (n = 13) and SES (n = 13). National Institutes of Health Stroke Scale (NIHSS) at admission was 2.5 +/- 3.1 and mean stenosis rate was 79.0 +/- 8.2%. Assessment of clinical and angiographic results was performed retrospectively. RESULTS: Among 34 patients, periprocedural complications occurred in four cases (11.8%), however, only two cases (6.0%) were symptomatic. All patients were followed clinically (mean follow-up period; 40.7 +/- 17.7 months) and 31 were followed angiographically (91.2%. 13.4 +/- 8.5 months). There was no occurrence of repeat stroke in all patients; however, mild TIAs related to restenosis occurred in three of 34 patients (8.8%). The mean NIHSS after stent-angioplasty was 1.7 +/- 2.9 and 0.8 +/- 1.1 at discharge. The modified Rankin score (mRS) at discharge was 0.5 +/- 0.9 and 0.3 +/- 0.8 at the last clinical follow-up. In-stent restenosis over 50% occurred in five of 31 angiographically followed cases (16.1%), however, all of these events occurred only in patients who were treated with BMS or SES. Restenosis rate was 0.0% in the DES group and 20.8% in the other group (p = 0.562); it did not differ between BMS and SES (2/11 18.2%, 3/13 23.1%, p = 1.000). CONCLUSION: Stent-angioplasty appears to be effective for symptomatic MCA stenosis. As for restenosis, in our study, DES was presumed to be more effective than BMS and SES; meanwhile, the results did not differ between the BMS and SES groups.
Angioplasty ; Constriction, Pathologic ; Drug-Eluting Stents ; Follow-Up Studies ; Humans ; Infarction ; Ischemic Attack, Transient ; Middle Cerebral Artery ; National Institutes of Health (U.S.) ; Stents ; Stroke

In the rat brain stem, the origin of neurons and afferent fibers projecting to the lacrimal, submandibular or sublingual gland was investigated by means of retrograde transport of Cholera Toxin B Subunit (CTB), respectively. Injection of CTB into the lacrimal gland labeled their neurons in superior salivatory nucleus (SSN) and facial nucleus. Superior salivatory neurons innervating lacrimal gland were labeled more densely in the rostral and caudal part of SSN. In the facial nucleus, labeled cell bodys were seen in the posterolateral part of facial nucleus. Injection of CTB into the submandibular or sublingual gland labeled their neurons in SSN and their afferent fibers in nucleus tractus solitarius (NTS). The superior salivatory neurons innervating submandibular or sublingual gland were labeled densely in the middle part of SSN. In the middle part of SSN, neurons innervating submandibular gland were labeled diffusely in the medial part of facial nerve and neurons innervating sublingual gland were labeled in the anteromedial and posterior part of facial nerve. The labeled nerve fibers in NTS were seen in the middle part of NTS.
Animals ; Brain Stem* ; Brain* ; Cholera Toxin* ; Cholera* ; Facial Nerve ; Lacrimal Apparatus ; Nerve Fibers ; Neurons ; Rats* ; Solitary Nucleus ; Sublingual Gland* ; Submandibular Gland

In malignant bone and soft tissue tumors, lung is the most predilection site of metastasis and multiple pulmonary metastases is a poor prognostic factor. Aggressive treatment of pulmonary metastases may offer a chance of long term survival in selected patients whose primary tumors were controlled. We wanted to know the feasibility of pulmonary metastasectomy, whether it can prolong the survival. From Apr. 1989 to Dec. 1993, pulmonary metastasectomies were carried out for 20 patients, and followed up to Sept. 1994, with average follow-up period of 18.7(2-65) months. The primary malignant tumors were 8 in bone and 12 in soft tissues. Mean age was 27.5(12-70) years. Fifteen cases showed late metastasis after control of primary tumor(late metastasis group), and 5 cases showed pulmonary metastasis at first visit(initial stage III group). As a control we analyzed the survival of 24 cases of no treatment after pulmonary metastasis from bone or soft tissue sarcoma, during the same period of investigation. At final follow-up, in late metastasis group, 4 cases were in no evidence of disease (NED), 4 alive with disease (AWD) and 7 dead of disease (DOD). Tumor free interval (TFI) of NED and AWD was averaged 30 months, and for DOD 9.8 months. Five among 11 cases (45%) of multiple lung metastases and 3 among 4 cases (75%) of single metastasis were alive. In initial stage III group, 1 case was in NED, 1 AWD and 3 DOD. For late metastasis group, Kaplan-Meier's 5-year estimated survival rate from the first metastasectomy was 37.4%. The median survival period of 15 cases was 44 months. For initial stage III group, Kaplan-Meier's 9 months estimated survival rate was 40%. Median survival period was 8 months. Twenty four cases of no treatment cases died within 14 months from diagnosis of pulmonary metastasis. Their median survival period was 6 months. Pulmonary metastasectomy appears to prolong survival and occupies an important mode of treatment for late pulmonary metastases in malignant bone and soft tissue tumor patients. In the cases of initial stage III, more cases and follow up period are needed to have a conclusion.
Diagnosis ; Follow-Up Studies ; Humans ; Lung ; Metastasectomy ; Neoplasm Metastasis ; Sarcoma ; Survival Rate

Squamous cell carcinoma of the pancreas is a rare variant of pancreatic ductal cell carcinoma. Its biologic behavior and clinical features are known to be similar to the much more common ductal adenocarcinoma of pancreas. A 70-year old man with postprandial vomiting symptom was admitted to our hospital. Initial endoscopy and abdominal CT showed that 6cm sized submucosal tumor on pylous or duodenum invaded the pancreas. Subtotal gastrectomy with partial pancreatic resection was done. The resection specimen revealed of metastatic squamous carcinoma of stomach and duodenum. Follow up CT was revealed that multiple liver metastasis and a large mass in peripancreatic space. The mass was confirmed invasive squamous cell carcinoma of pancreas by aspiration biopsy. The patient died of cancer cachexia 50 days after operation. We report an unusual case of squamous cell carcinoma of the pancreas which was invaded to duodenum and pylorus with a review of literature.
Adenocarcinoma ; Aged ; Biopsy, Needle ; Cachexia ; Carcinoma, Squamous Cell* ; Duodenum* ; Endoscopy ; Follow-Up Studies ; Gastrectomy ; Humans ; Liver ; Neoplasm Metastasis ; Pancreas* ; Pancreatic Ducts ; Pylorus* ; Stomach ; Tomography, X-Ray Computed ; Vomiting

Spontaneous bilateral cerebellar infarction in the territory of the superior cerebellar arteries is extremely rare. Occasionally there have been reports of bilateral cerebellar infarction due to vertebrobasilar atherosclerotic occlusion or stenosis, whereas no report of bilateral cerebellar infarction due to complicated hemodynamic changes. In this report, we present a patient with bilateral cerebral infarctions related to stenoses of bilateral internal carotid arteries, in whom vertebrobasilar system was supplied by multiple collaterals from both posterior communicating arteries and right external carotid artery. We performed stent-angioplasty of bilateral internal cerebral arterial stenosis, and then acute infarction developed on bilateral superior cerebellar artery territories. The authors assumed that the infarction occurred due to hemodynamic change between internal carotid artery and external carotid artery after stent-angioplasty for stenosis of right internal carotid artery.
Arteries* ; Carotid Artery, External ; Carotid Artery, Internal* ; Carotid Stenosis* ; Cerebral Infarction ; Constriction, Pathologic ; Hemodynamics ; Humans ; Infarction*

A communicating bronchopulmonary foregut malformation (CBPFM) is a rare congenital anomaly that is characterized by a fistula between isolated respiratory tissue and the esophagus or stomach. The presence of accessory lung tissue arising from the primitive gastrointestinal tube is a common factor in the development of all forms of bronchopulmonary foregut malformations. Recurrent pneumonia associated with cystic radiographic structures is a characteristic of the condition. Further imaging studies using esophagogram, bronchography, computerized tomography, MRI, and arteriography can help in making a diagnostic evaluation. The treatment is a surgical resection of the involved lung tissue, and fistula closure with a good prognosis. We encountered a case of CBPFM, who presented with an extralobar pulmonary sequestration and bronchogenic cyst communicating with a tubular esophageal duplication that was associated with a complete left pericardial defect.
Angiography ; Bronchogenic Cyst ; Bronchography ; Bronchopulmonary Sequestration ; Esophagus ; Fistula ; Lung ; Magnetic Resonance Imaging ; Pericardium* ; Pneumonia ; Prognosis ; Stomach

A communicating bronchopulmonary foregut malformation (CBPFM) is a rare congenital anomaly that is characterized by a fistula between isolated respiratory tissue and the esophagus or stomach. The presence of accessory lung tissue arising from the primitive gastrointestinal tube is a common factor in the development of all forms of bronchopulmonary foregut malformations. Recurrent pneumonia associated with cystic radiographic structures is a characteristic of the condition. Further imaging studies using esophagogram, bronchography, computerized tomography, MRI, and arteriography can help in making a diagnostic evaluation. The treatment is a surgical resection of the involved lung tissue, and fistula closure with a good prognosis. We encountered a case of CBPFM, who presented with an extralobar pulmonary sequestration and bronchogenic cyst communicating with a tubular esophageal duplication that was associated with a complete left pericardial defect.
Angiography ; Bronchogenic Cyst ; Bronchography ; Bronchopulmonary Sequestration ; Esophagus ; Fistula ; Lung ; Magnetic Resonance Imaging ; Pericardium* ; Pneumonia ; Prognosis ; Stomach