Sacral pressure sores have been treated by a variety of surgical methods. complete treatment needs wide excision and coverage with healthy tissue which has constant and sufficient blood supply. Use of gluteus maximus muscle flap with or without overlying skin is a revolutionary method because of the reliability of blood supply. However, it is technically a little bit complicated, and future reconstruction for recurrent decubitus is especially limited in paraplegic patients. The development of gluteal perforator-based flap with para-sacral perforator introduce a new treatment modality for the sacral pressure sores. Total 10 cases of sacral pressure sores were treated with gluteal perforator-based flap. There were minimal postoperative complications except wound dehiscence in one case. This flap has a many advantage of no transection or sacrifice of the gluteus maximus muscle, elevation time for the flap is short, reliable blood flow of the perforator, large rotation arc and no post-operative hindrance to walking in patients who are not paraplegic. The disadvantages of this perforator-based flaps are the anatomical variation in the location of perforators and the need for technically careful dissection.
Humans ; Postoperative Complications ; Pressure Ulcer* ; Skin ; Walking ; Wounds and Injuries

No abstract available.
Animals ; Ischemia* ; Muscle, Skeletal* ; Rats* ; Reperfusion*

After surgical operation in patients with arteriovenous malformation (AVM), normal pressure perfusion breakthrough (NPPB) is one of the major complications. Brain perfusion SPECT with acetazolamide stress was known to be useful to evaluate the vascular reserve in several neurological and neurosurgical conditions. The authors performed acetazolamide brain perfusion SPECT in patients with AVM and compared the brain perfusion in the post-operative clinical courses. The acetazolamide brain perfusion SPECT was helpful in defining the prognosis of the patients with AVM. We describe 4 patients with AVM who had acetazolamide brain perfusion SPECT to examine the prognosis.
Acetazolamide* ; Arteriovenous Malformations* ; Brain* ; Humans ; Perfusion* ; Prognosis* ; Technetium Tc 99m Exametazime ; Tomography, Emission-Computed, Single-Photon*

No abstract available.
Animals ; Antibodies, Neutralizing* ; Immunization* ; Mice*

PURPOSE: The aim of this study is to reveal the detailed clinical features of diarrhea- associated benign infantile convulsion. METHODS: We studied 34 patients with diarrhea-associated benign infantile convulsion between March 2000 and February 2004. RESULTS: There were 34 patients with diarrhea-associated benign infantile convulsion : 19 boys and 15 girls. The age of the disease onset ranged from 3 to 34(mean; 18.7+/-6.6) months. The incidence was high from November to March. The types of the seizures were generalized tonic-clonic or generalized tonic in 32(94%) of 34 episodes, while the seizure types changed during episodes for 2 patients. The durations of seizures were from 3 sec to 10 min. 2 or more seizures occurred in 22(64.7%) episodes. A family history of febrile or afebrile convulsions was noted in 3 patients. There were no abnormalities in serum biochemistry tests. 12 out of 22 patients showed positive rotavirus antigen tests. Interictal EEG's were normal in 26 out of 30 episodes. CT or MRI demonstrated no neuroradiological abnormalities in 13 out of 14 patients. 4 patients experienced recurrence of diarrhea-associated benign infantile convulsion, but none had more than 2 episodes. Epilepsy developed in none of the patients during the follow-up period. CONCLUSION: Diarrhea-associated benign infantile convulsion is characterized by a cluster of seizures. A continous or intermittent antiepileptic treatment is not required because recurrence or later development of epilepsy is rare. Appropriate treatment for a cluster of seizures will be the subject of future studies.
Biochemistry ; Diarrhea ; Epilepsy ; Female ; Follow-Up Studies ; Humans ; Incidence ; Infant ; Magnetic Resonance Imaging ; Recurrence ; Rotavirus ; Seizures*

PURPOSE: To assess the internal echo intensity and morphological variability of masseter muscles on ultrasonography and to establish diagnostic criterion of estimation. MATERIALS AND METHODS: Participants consisted of 50 young adults (male 25, female 25) without pathologic conditions and with full natural dentitions. Sonographic examinations were done with real time ultrasound equipment as Logiq 500 (GE Medical Systems, Seoul, Korea) at 3 parts according to lines paralleling with ala-tragus line as reference line. The thickness and area of masseter muscles according to reference line in cross-sectional images were measured at rest and at maximum contraction. The visibility and width of the internal echogenic intensity of the masseter muscles were also assessed and the muscle appearance was classified into 4 types. Data were statistically analyzed by paired t-test and chi-square-test. RESULTS: 1. When comparing the thickness and area of masseter muscles concerning with gender, there was few significant difference between right and left sides, however, there were significant differences between males and females except for the greatest thickness of left side. 2. The changes of the greatest thickness and the area between rest and maximum contraction showed that the part of the least thickness manifested more increase at maximum contraction. 3. Each part the manifestations of the internal echogenic intensity of the masseter muscles were different depending on the locations. But there was no statistically significance. CONCLUSION: Changes of muscles thickness with contraction and internal echogenic intensity with locations showed great disparity within the masseter muscles, which will be diagnostic criteria for pathophysiologic and anatomic changes of masseter muscles.
Contracts ; Dentition ; Female ; Humans ; Male ; Masseter Muscle ; Muscles ; Young Adult

PURPOSE: To evaluate position of the mandibular condyle within articular fossa in an asymptomatic population radiographically by a cone beam computed tomography. MATERIALS AND METHODS: Cone beam computed tomography of 60 temporomandibular joints was performed on 15 males and 15 females with no history of any temporomandibular disorders, or any other orthodontic or prosthodontic treatments. Position of mandibular condyle within articular fossa at centric occlusion was evaluated. A statistical evaluation was done using a SPSS. RESULTS: In the sagittal views, mandibular condyle within articular fossa was posteriorly located at medial and central sections. In the coronal views, mandibular condyle within articular fossa was laterally located at central section. Mandibular condyles in the right and left sides were showed asymmetric positional relationship at medial,central, and lateral sections. CONCLUSION: Mandibular condyle within articular fossa in an asymptomatic population was observed nonconcentric position in the sagittal and coronal views.
Cone-Beam Computed Tomography* ; Female ; Humans ; Male ; Mandibular Condyle* ; Prosthodontics ; Temporomandibular Joint ; Temporomandibular Joint Disorders

Aspergilloma of the paranasal sinus is a non-invasive form of aspergillosis, most often in the maxillary sinus. This case presents an 86-year-old female with aspergilloma of the left maxillary sinus. The patient's chief complaint was intermittent pain on the left maxillary first premolar area. A radiopacification of the left maxillary sinus was observed on the panoramic radiograph. Cone-beam computed tomography revealed complete radiopacification of the left maxillary sinus and scattered multiple radiopaque mass inside the lesion. Biopsy was performed under local anesthesia. On microscopic examination, numerous fungal hyphae, which branch at acute angle, were observed. The diagnosis was made as an aspergilloma based on the histopatholgic examination.
Aged, 80 and over ; Anesthesia, Local ; Aspergillosis ; Bicuspid ; Biopsy ; Cone-Beam Computed Tomography ; Female ; Humans ; Hyphae ; Maxillary Sinus ; Paranasal Sinus Diseases

PURPOSE: The purpose of this study is to develop a surgical stent for dental implant procedure that can be easily applied and affordable by using cone beam computerized tomography (CBCT). MATERIALS AND METHODS: Aluminum, Teflon-PFA (perfluoroalkoxy), and acetal (polyoxymethylene plastic) were selected as materials for the surgical stent. Among these three materials, the appropriate material was chosen using the CBCT images. The surgical stent, which could be easily placed into an oral cavity, was designed with chosen material. CBCT images of the new surgical stent on mandible were obtained using Alphard-3030 dental CT system (Asahi Roentgen Co., Ltd., Kyoto, Japan). The point of insertion was prescribed on the surgical stent with the multiplanar reconstruction software of OnDemand3D (CyberMed Inc., Seoul, Korea). Guide holes were made at the point of insertion on the surgical stent using newly designed guide jig. CBCT scans was taken for the second time to verify the accuracy of the newly designed surgical stent. RESULTS: Teflon-PFA showed radiologically excellent image characteristics for the surgical stent. High accuracy and reproducibility of implantation were confirmed with the surgical stent. CONCLUSION: The newly designed surgical stent can lead to the accurate implantation and achieve the clinically predictable result.
Aluminum ; Cone-Beam Computed Tomography ; Dental Implants ; Mandible ; Mouth ; Stents

PURPOSE: To evaluate location, distribution, diameter, and length of the nutrient canals on mandibular anterior region using a cone beam computed tomography (CBCT). MATERIALS AND METHODS: Mandibular CBCT was performed on 33 adults (18 males and 15 females) with no history of systemic disease, and any other dental surgery history. Location, distribution, diameter, and length of the nutrient canals on mandibular anterior region were radiographically evaluated. A statistical comparison was done by SPSS. RESULTS: In the location and distribution of nutrient canals, they were found in 6.8% at labial portion above root apex, in 93.28% at lingual portion above root apex in 46.2% at labial portion below root apex, and in 53.6% at lingual portion below root apex. Nutrient canals at lingual portion above root apex were most frequently observed between central and lateral incisors, and those at labial and lingual portion below root apex were most frequently observed between central incisors. The mean diameters of nutrient canals were 0.54 mm at labial portion above root apex, 0.61 mm at lingual portion above root apex, 0.66 mm at labial portion below root apex, and 0.76 mm at lingual portion below root apex. The mean lengths of nutrient canals were 2.63 mm at labial portion above root apex, 3.74 mm at lingual portion above root apex, 4.51 mm at labial portion below root apex, and 6.77 mm at lingual portion below root apex. CONCLUSION: CBCT is useful device to evaluate the anatomical structure of nutrient canals on mandibular anterior region.
Adult ; Cone-Beam Computed Tomography* ; Haversian System* ; Humans ; Incisor ; Male ; Mandible