No abstract available.
Humans ; Infant*

BACKGROUND: Breast cancer is the most frequent malignant neoplasm among women in the Orient. This cancer is also increasing in Korea due to westernization of the living pattern, increased recognition among the general population, and improved methods for early detection. In the surgical treatment of breast cancer, cosmetic conservation of the breast has drawn the patients' attention so that conservative surgery is increasing nowadays. The purpose of this study is to describe the current status of breast cancer management at our institution and to identify the survival and the recurrence rates according to the stage and the surgical method used. METHODS: We reviewed the medical records of 150 patients diagnosed as having breast cancer on pathologic examination at the Department of General Surgery, EulJi College of Medicine, from January 1991 to December 1996 and evaluated the clinical findings, the diagnostic method, operation, and the prognosis. RESULTS: The mean age of the patients was 49.1 years, and 34.0% of the patients was in the fifth decade. A palpable mass in the breast was the most frequent clinical symptom and sign (80.7%). The interval between symptom onset and diagnosis was about 6 months in 76.0% of patients. The size of the mass was 2~5 cm in 51.3% of the patients. A modified radical mastectomy was the most frequently employed surgical method (74.0%), but conservative surgery has increased lately. Seventy-ight patients (52.0%) were in stage II. The five-ear survival rates for stages I, II, III were 100%, 82.9%, and 55.0% (p=0.00006). The five-ear survival rates for 0, 1~3, 4~9, and more than 10 axillary-ode metastases were 85.9%, 55.3%, 53.6%, and 21.1%, respectively (p=0.0007). The five-ear survival rates for breast-conserving surgery and a modified radical mastectomy, for both stage of I and II, were 90.9% and 89.3% (p=0.8114), respectively, and the recurrence rates were 17.9% and 23.8% (p=0.88). CONCLUSIONS: The authors may conclude that breast-onserving surgery may offer an effective alternative to a modified radical mastectomy for patients with stage I & II breast cancer.
Breast Neoplasms* ; Breast* ; Diagnosis ; Female ; Humans ; Korea ; Mastectomy, Modified Radical ; Mastectomy, Segmental ; Medical Records ; Neoplasm Metastasis ; Prognosis ; Recurrence ; Survival Rate

PURPOSE: Phyllodes tumor is a rare fibroepithelial tumor of the breast, first described by Johannes Muller in 1838. Much has been written about phyllodes tumor, but very few widely accepted conclusions about its clinical behavior, treatment modality, and prognosis have been reached. This study aims to analyze the clinical, radiological, and pathological characteristics of phyllodes tumor of the breast. METHODS: The medical records of 41 patients with phyllodes tumor who had been treated between February 1982 and August 1998 at the Department of Surgery, Seoul National University Hospital, were retrospectively reviewed for clinical, radiological and pathological findings, treatment modalities, and follow-up results. RESULTS: Of these 41 cases, there were 28 cases (68.3%) of benign tumors and 13 cases (31.7%) of malignanat tumors. All patients were females, and the mean ages of onset were 33.2 years for benign tumors and 40.8 years for malignant tumors. Most patients, 100% of benign and 92.3% of malignant, presented with a papable mass in the breast. The median duration of illness was 2 months for malignant tumors and 8 months for benign tumors. The tumor size was greater than 10 cm in diameter in 5 cases (38.5%) of malignant tumors and in 3 cases (10.7%) of benign tumors. Only 4 cases were preoperatively diagnosed as having a phyllodes tumor by using radiological and fine needle aspiration cytology. Out of the 10 malignant cases reviewed, 5 cases were confirmed as malignant, and 5 cases were confirmed as borderline phyllodes tumors. Cellularity was moderate or above in all 5 malignant and 5 borderline cases. Atypism above moderate degree was found in 4 of 5 (80%) malignant tumors, in 3 of 5 (60%) borderline tumors, and in 4 of 24 (16.7%) benign tumors. Mitotic counts in all 5 malignant cases were 5 or more per 10 high power field while those in the 5 borderline tumors were 2-5 mitoses per 10 high power field. The most commonly performed operative procedures were a simple mastectomy (50%) for malignant tumors and a simple excision (64.3%) for benign tumors. Post-operative adjuvant therapy was done for 4 cases; out of these, 1 case had been initially diagnosed as a malignant phyllodes tumor, but the diagnosis was changed to a benign phyllodes tumor upon review. Of the 27 follow-up cases, recurrences developed in 3 cases (16.7%) of benign tumors. CONCLUSION: From the above results, there were no specific clinical features for differentiating benign from malignant phyllodes tumor preoperatively; therefore, we cannot help depending on the pathologic findings. Pathologic reviews showed that among several criteria, atypism, cellularity, and mitotic count were the most definite pathologic characteristics in differentiating benign from malignant phyllodes tumor. But much more experience and long-term follow-up may be needed to define optimal treatments and to analyze the prognosis for phyllodes tumors of the breast.
Biopsy, Fine-Needle ; Breast* ; Diagnosis ; Female ; Follow-Up Studies ; Humans ; Mastectomy, Simple ; Medical Records ; Mitosis ; Phyllodes Tumor* ; Prognosis ; Recurrence ; Retrospective Studies ; Seoul ; Surgical Procedures, Operative

BACKGROUND AND OBJECTIVES: Patent ductus arteriosus (PDA) is associated with increased morbidity and mortality in premature infants. Therefore, an early diagnosis and treatment of a hemodynamically significant PDA are very important. A widened pulse pressure is considered to be a well known clinical sign of a PDA in older infants and children; however, whether this is also applicable in the case of preterm infants remains to be confirmed. The aims of this study were to investigate the change in blood pressure (BP) before and after medical treatment of a PDA with indomethacin and to evaluate if the change in the pulse pressure in preterm infants with a medically treated PDA could be used as a reliable clinical predictor of a hemodynamically significant PDA. SUBJECTS AND METHODS: Between January 2005 and June 2009, a retrospective analysis was performed in preterm infants with a hemodynamically significant PDA (PDA group, n=72) and preterm infants without a PDA (control group, n=72) at the Chonnam National University Hospital Neonatal Intensive Care Unit. The PDA was closed by treatment with indomethacin. The BP was compared between the two groups over the seven days after the first dose of indomethacin. RESULTS: In preterm infants with a hemodynamically significant PDA, the mean systolic (55.1+/-6.0 mmHg) and diastolic BPs (31.4+/-6.2 mmHg) were lower than those in the controls (mean systolic BP 58.0+/-6.4 mmHg, mean diastolic BP 34.7+/-6.0 mmHg) before indomethacin treatment. When the ductus arteriosus was successfully closed by indomethacin treatment, there was a gradual increase in both the systolic and diastolic BPs without any change in the pulse pressure. CONCLUSION: The results of this study show that a widened pulse pressure is not a useful clinical sign of a hemodynamically significant PDA in preterm infants. However, low systolic and diastolic BPs may be useful clinical signs of a hemodynamically significant PDA in preterm infants. If the systolic and diastolic BP is low, a PDA should be considered and echocardiography should be performed for early diagnosis and treatment.
Blood Pressure ; Ductus Arteriosus ; Ductus Arteriosus, Patent ; Early Diagnosis ; Echocardiography ; Humans ; Indomethacin ; Infant ; Infant, Newborn ; Infant, Premature ; Intensive Care, Neonatal ; Retrospective Studies

Background: This study evaluated the difference in brain metabolite profiles between normothermia and hypothermia reaching 25°C in humans in vivo. Methods: Thirteen patients who underwent thoracic aorta surgery under moderate hypothermia were prospectively enrolled. Plasma samples were collected simultaneously from the arteries and veins to estimate metabolite uptake or release. Targeted metabolomics based on liquid chromatographic mass spectrometry and direct flow injection were performed, and changes in the profiles of respective metabolites from normothermia to hypothermia were compared. The ratios of metabolite concentrations in venous blood samples to those in arterial blood samples (V/A ratios) were calculated, and log 2 transformation of the ratios [log2 (V/A)] was performed for comparison between the temperature groups. Results: Targeted metabolomics were performed for 140 metabolites, including 20 amino acids, 13 biogenic amines, 10 acylcarnitines, 82 glycerophospholipids, 14 sphingomyelins, and 1 hexose. Of the 140 metabolites analyzed, 137 metabolites were released from the brain in normothermia, and the release of 132 of these 137 metabolites was decreased in hypothermia. Two metabolites (dopamine and hexose) showed constant release from the brain in hypothermia, and 3 metabolites (2 glycophospholipids and 1 sphingomyelin) showed conversion from release to uptake in hypothermia. Glutamic acid demonstrated a distinct brain metabolism in that it was taken up by the brain in normothermia, and the uptake was increased in hypothermia. Conclusion Targeted metabolomics demonstrated various degrees of changes in the release of metabolites by the hypothermic brain. The release of most metabolites was decreased in hypothermia, whereas glutamic acid showed a distinct brain metabolism.

PURPOSE: This study was to investigate the effect of music therapy as intervention on peripheral neuropathic pain and anxiety of gynecologic cancer patients who were undergoing paclitaxel chemotherapy. METHODS: Hospitalized 62 patients were assigned to an experimental group (n=30) and a control group (n=33) in this quasi-experimental study. The experimental group participated in music therapy that includes listening, singing and song writing during 1 hour. The peripheral neuropathic pain, anxiety and depression were examined as pre-intervention evaluation by using pain scale, anxiety scale (20 questions) and depression scale (20 questions) in both groups. There were no further treatments for the control group while the experimental group involved in music therapy. The peripheral neuropathic pain and anxiety were evaluated in both groups as post-intervention evaluation. RESULTS: Outcomes were verified through hypothesis testing. The level of peripheral neuropathic pain and anxiety in the experimental group was decreased, compared to the control group. CONCLUSION: According to the study, music therapy is a beneficial intervention that reduces peripheral neuropathic pain and anxiety in gynecologic cancer patients. These findings are encouraging and suggest that music therapy can be applied as an effective intervention for minimizing chemotherapy related symptoms.
Anxiety ; Depression ; Humans ; Music ; Music Therapy ; Neuralgia ; Paclitaxel ; Singing ; Writing

No abstract available.
Catheterization, Central Venous ; Central Venous Catheters

Transesophageal echocardiography is a useful device to evaluate the posterior structure of heart with an advantage of enabling clearer images, as compared to transthoracic echocardiography. With intraoperative transesophageal echocardiography, we can reconfirm pre-diagnosed lesions, determine the success of the operation, and in particular, diagnose new lesions that are undetected in pre-operative evaluation. In the present case, undiagnosed patent ductus arteriosus was found on intraoperative transesophageal echocardiography during cardiopulmonary bypass. Subsequently, the patent ductus arteriosus was ligated successfully. With transesophageal echocardiography, we can diagnose the structural and functional abnormality of heart unidentified in the pre-operative evaluation. Also, transesophageal echocardiography can play the role of a rescuer to solve the problems that occur during cardiopulmonary bypass.
Cardiopulmonary Bypass* ; Ductus Arteriosus, Patent* ; Echocardiography ; Echocardiography, Transesophageal* ; Heart ; Humans

BACKGROUND: We investigated the effects of a magnesium sulfate pretreatment on intubating conditions and cardiovascular responses during rapid sequence tracheal intubation (RSI) in this double-blind randomized study. METHODS: Adult patients (n = 154) were randomly allocated to a rocuronium-0.6, rocuronium-0.9, or magnesium group. The magnesium group was pretreated with 50 mg/kg MgSO4, and the other two groups received the same volume of isotonic saline. Anesthesia was induced with alfentanil, propofol, and either 0.6 mg/kg (rocuronium-0.6 and magnesium groups) or 0.9 mg/kg (rocuronium-0.9 group) rocuronium. An anesthesiologist, blinded to the group assignments, performed RSI and assessed the intubating conditions. Systolic arterial pressure (SAP) and heart rate (HR) were recorded before the magnesium sulfate or normal saline was administered, before anesthesia induction, before intubation, and every minute after intubation for 5 min. RESULTS: Airway features were similar among the three groups. The intubating conditions were improved significantly in the magnesium group (P < 0.001) compared with the other two groups. Significant increases in SAP at 1 min after intubation were observed in the rocuronium-0.6 and -0.9 groups when compared with the magnesium group (P < 0.05). HR was comparable among the three groups (P > 0.05). No hypertensive episode occurred during the immediate post-intubation period in the magnesium group (P = 0.001), and tachycardia occurred most frequently in the rocuronium-0.6 group (P < 0.05). CONCLUSIONS: MgSO4 administered prior to RSI using alfentanil, propofol, and rocuronium may improve intubating conditions and prevent post-intubation hypertension.
Adult ; Alfentanil ; Androstanols ; Anesthesia ; Arterial Pressure ; Heart Rate ; Humans ; Hypertension ; Intubation ; Magnesium ; Magnesium Sulfate ; Propofol ; Tachycardia

Doxorubicin is a widely used chemotherapeutic agents and is now part of standard therapeutic regimens for a variety of cancers (eg, hematopoietic malignancies and advanced solid tumors of the breast, ovary, thyroid, and bone). However, a potentially lethal and dose-dependent cardiotoxicity that appears within a short time after treatment limits the usage of doxorubicin in cancer patients. Although the mechanism of doxorubicin-induced cardiotoxicity is not completely understood, it is thought that free radical-induced oxidative stress and excessive production of reactive oxygen species are primary drivers of its toxicity. In this study, we compared the doxorubicin-induced cardiotoxicity of ICR mice obtained from three different sources and evaluated the utility of Korl:ICR stock established by the Korean FDA. Because doxorubicin-induced cardiotoxicity is thought to involve the excessive generation of ROS followed by oxidative stress, we determined the representative tissue index of oxidation, lipid peroxidation, and antioxidant, glutathione (GSH), as well as the parameters of heart injury. Doxorubicin treatment successfully induced cardiotoxicity as evidenced by histological examination and serum parameters (eg, levels of LDH and CK activities) in ICR mice. It was accompanied by increased lipid peroxidation and a decrease in both cysteine and GSH, further supporting previous reports that oxidative stress is a potential mechanism of doxorubicin-induced cardiotoxicity. Of interest, we did not observe a significant difference in doxorubicin-induced cardiotoxicity among mice of different origins. Collectively, our results suggest that Korl:ICR strain may be useful in the research of doxorubicin-induced cardiotoxicity.
Animals ; Breast ; Cardiotoxicity* ; Cysteine ; Doxorubicin ; Female ; Glutathione ; Heart Injuries ; Hematologic Neoplasms ; Humans ; Lipid Peroxidation ; Mice ; Mice, Inbred ICR* ; Ovary ; Oxidative Stress ; Reactive Oxygen Species ; Thyroid Gland