A 28-yr-old woman, weighing 61 kg with bleeding myoma of uterus was scheduled for total abdominal hysterectomy. There was no history of cardiac arrhythmia or syncope. She was not premedicated. The heart rate was 115 beats/min and arterial pressure was 155/95 mmHg, immediately before the induction of anesthesia. Under the preoxygenation, anesthesia was induced with IV injection of thiopental sodium 250 mg followed by succinylcholine 75 mg. About 20 seconds after the succinylcholine bolus, the ECG showed an abrupt change from sinus rhythm to asystole without any stimulus including laryngoscopy. After a precordial thump and atropine 0.5 mg IV, tracheal intubation and ventilation with 100% O2 were quickly accomplished. Normal sinus rhythm with heart rate of 87 beats/min returned during laryngoscopy and intubation. The interval from the sinus arrest to the reestablishment of normal sinus rhythm was only 15 seconds. Surgery proceeded uneventfully and the patient recovered without any complication.
Anesthesia ; Arrhythmias, Cardiac ; Arterial Pressure ; Atropine ; Electrocardiography ; Female ; Heart Arrest* ; Heart Rate ; Hemorrhage ; Humans ; Hysterectomy ; Intubation ; Laryngoscopy ; Myoma ; Succinylcholine* ; Syncope ; Thiopental ; Uterus ; Ventilation

We compared all frozen section examination of ovarian tumors during a 5 year period in our institute with permanent section diagnosis from paraffin sections. In this period, 604 ovarian tumors had frozen section examination. Final histologic diagnosis was divided into benign, low malignant potential and malignant. Sensitivity of frozen section diagnosis for malignant was 80 %, low malignant potential 73,1%, and benign 99.8%. Predictive value for malignancy was 98.5%, for low malignant potential 76.6%, and for benign disease 96.2%. Diagnostic problems occurred in huge tumors and low malignat potential mucinous tumors. Analysis of the 32 false negative(miss or under diagnosis) revealed that a sampling error was involved almostly. The cases of discrepancy between frozen section diagnosis and permanent section diagnosis, were 26/34 in mucinous tumors and 33/34 in huge size of tumors(more than 10cm). Although surgeons and pathologist are aware of the limitations of frozen section diagnosis of ovarian tumors, peroperative histologic examination can be worthwhile and prevent under or over treatment of ovarian malignancies.
Diagnosis* ; Frozen Sections* ; Mucins ; Paraffin ; Selection Bias

No abstract available.
Rhinomanometry*

No abstract available.

Neoplastic polyps of colon are one of the most risky factors for colorectal cancer. Particularly villous adenomas have more malignant potential than other neoplastic polyps. The preoperative detection of malignant change in villous adenoma is very important to determine treatment modality of patients. We conducted that total twenty-four cases of villous adenoma who were diagnosed and treated at our institution between January 1990 and December 1995 were reviewed retrospectively. The peak incidence of age was 7th decades. And male to female ratio was 2 : 1. Size of the adenoma ranged from 1.2 to 10.7 cm with a mean diameter of 3.9 cm. Five cases(20.8%) were between 1 and 2 cm, 10(41.7%) between 2 and 4 cm, and 9(31.5%) greater than or equal to 4 cm. Location of the adenoma were 10 cases(41.7%) in upper rectum, 8(33.3%) in rectosigmoid, and 6(25.0%) in lower rectum respectively. Pathologic examination of the resected specimen were diagnosed 9(37.5%) as benign villous adenomas, 10(41.7%) as in situ carcinoma, and 5(20.8%) as invasive carcinoma. The diagnostic accuracy to detect in situ carcinoma or invasive carcinoma was endoscopic examination in 66.7 percent and digital examination in 86.7 percent. The grade of in situ carcinoma had not significantly relationship with the size of the adenoma on our study. However, invasive carcinoma was significantly related to adenoma size(P<0.05) as following results zero percent between 1 and 2 cm, 20 percent between 2 and 4 cm, and 33.3 percent greater than or equal to 4 cm. In conclusion, the larger villous adenoma has higher malignant potential, especially greater than or equal to 4 cm in size. Added, the clinical impression of the malignancy on digital examination can be more accurate than preoperative endoscopic examination on our study.
Adenoma ; Adenoma, Villous* ; Colon ; Colorectal Neoplasms ; Female ; Humans ; Incidence ; Male ; Polyps ; Rectum ; Retrospective Studies

Orientia tsutsugamushi, the causative agent of scrub typhus, is an obligate intracellular parasite. Previously we have shown that it persistently infect the human endothelial cell line ECV304. In this study, we have investigated the mechanism of in vitro persistent infection, which could be maintained for over a year without addition of normal cells. The persistently infected cultures exhibited cyclic changes in the host cell number, which resulted in a net increase of cell number. Floating cells detached from the culture plate bottom were filled with rickettsial cells and lost normal morphology. Only part of attached EVC304 cells was infected with O. tsutsugamushi. Some of ECV304 cells that still attached to the bottom were free of rickettsial cells. Rickettsial cells in the floating cells could not effectively infect new EVC304 cells while those in the attached cell could infect new cells with high efficiency. Host cells that allowed vigorous rickettsial multiplication and resultantly lost viability, and low of infectivity of the bacteria in the dead cells might have allowed in vitro persistent infection of O. tsutsugamushi.
Apoptosis ; Bacteria ; Cell Count ; Endothelial Cells ; Humans ; Orientia tsutsugamushi* ; Parasites ; Scrub Typhus

Six cases of a rare variant of endocervieal adenocarcinoma (Adenoma maligum, AM) were collected for clinicopethologic analysis. The everage age of six patients was 49.3 years, and their chief com plaints were persis(ent mucid or watery discharge and intermittent vaginal spotting, The clinical im presaion was carcioma of The uterine cervix in faur out, of six cases. All except one were pathologically confirmed by initia1 biupey. two cases by colposcopic biopsies, two by cone biopsies, one by cone biopsy after suggested AM in calposcopic hiopsy. One case was incidentally found from hysterectnmised speeimen, which waas suspected as adennmyosis. On gross examination, the cervix usualty appeared either firm or indurated with thickening af the wall excepl one which was presented es a fungnting mass. The characteristic histologic feetures were ext,ensive arborizing endeervical glands with marked variation in size and shape, and the glands lined by mucin conyaining columnar epithelial cells with basal bland looking nuclei but with occasional cytologic atypia and rare mitose. The nenplasi.ic glands were characterized by deep stronml invasion be yond normal enddcervical glands, assosiated with loose edematous periglandular desmaplastic stromal reaction in moat cases. Immunohistochemical stainnings for carcinoembryonie antigen (CEA) revealed ey- toplasmic positivity in five cases. The clinical stage for all exeept one incidental case were : four Ib and one II b. In three cases, the radical hysterectomy with unilateral salpingooophorectomy plus dissection of bilateral pelvic and paraaortic lymph nodes was performed, and in one case radiotherapy was done prior to radical hysterectomy with bilateral salpingoophorectomy plus the dissection of left pelvic lymph nodes followed by chemotherapy. Total abdominal hysterectomy with bilateral salpingooophorectomy plus Burch's operation followed by radiation therapy was performed in on case. The remaining one case was treated with radiation therapy. Metastasis to the left obturator lymph node was discovered in one case with state IIb, and the patient expired 29 months after the radiotherapy. The remaining five cases are being carefully followed up. From our experience, we conclude that the early diagnosis of AM can be made based on comprehensive analysis concerning the clinical features, histopathological and immunohistochemical findings. The early diagnosis and proper therapy can lead to the better prognosis.
Adenocarcinoma ; Adenoma* ; Biopsy ; Cervix Uteri* ; Drug Therapy ; Early Diagnosis ; Epithelial Cells ; Female ; Humans ; Hysterectomy ; Lymph Nodes ; Metrorrhagia ; Mucins ; Neoplasm Metastasis ; Prognosis ; Radiotherapy

This paper reports our experiences in laparoscopically assisted surgical staging (LASS) to manage the patients with early-stage endometrial cancer. From March 1996 to March 1999, we performed LASS in 6 patients with clincal stage I adenocarcinoma of the endometrium. We performed laparoscopic-assisted vaginal hysterectomy (LAVH) with bilateral salpingo-oophorectomy (BSO) and intraoperative frozen-section (IFS) diagnosis. The depth of myometrial invasion, tumor differentiation, histologic types, cervical invasion, and adnexal involvement were determined by IFS diagnosis. Laparoscopic pelvic and/or para-aortic lymphadenectomies were performed based on the grade of the tumor and depth of myometrial invasion. One patient was discovered to have tumor metastases in pelvic peritoneum and uterosacral ligaments, and underwent only para-aortic lymphadenectomy for determining field of radiation therapy. 2 out of 5 patients only underwent LAVH with BSO and peroitoneal washing cytology. Three other patients underwent LAVH with BSO, peritoneal washing cytology and pelvic lymphadenectomy because they were identified by IFS diagnosis as intermediate risk group for nodal metastasis. The mean age of the patients was 46.4 years. Total length of the operation time ranged from 100 minutes to 305 minutes and the mean was 187.5 minutes. The mean hemoglobin decrement after the surgery was 0.9 gm/dl. No one recieved blood transfusion. The average number of pelvic and para-aortic lymph nodes removed were 16.7 and 18, respectively. After the surgery, the patients passed gas after an average of 2.0 days and urinated urine after an average of 3.8 days. No one had complication after LASS. Based on our experiences, LASS might be an alternative to the traditional surgical approach in patients with early-stage endometrial carcinoma.
Adenocarcinoma ; Blood Transfusion ; Diagnosis ; Endometrial Neoplasms* ; Endometrium ; Female ; Humans ; Hysterectomy, Vaginal ; Ligaments ; Lymph Node Excision ; Lymph Nodes ; Neoplasm Metastasis ; Peritoneum

No abstract available.
Cartilage* ; Rabbits* ; Ribs*

Atypical femoral fractures are stress or insufficient fractures induced by low energy trauma or no trauma and have specific X-ray findings. Although the American Society for Bone and Mineral Research has excluded periprosthetic fractures from the definition of an atypical femoral fracture in 2013, this is still a matter of controversy because some authors report periprosthetic fractures showing specific features of atypical fractures around a well-fixed femoral stem. We report 3 cases of periprosthetic femur fractures that had specific radiographic features of atypical femoral fractures in patients with a history of prolonged bisphosphonate use; we also review relevant literature.
Arthroplasty* ; Femoral Fractures ; Femur ; Hip* ; Humans ; Periprosthetic Fractures