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황승옥,이상우,김혜정,김완욱,박호용,정진향 한국유방암학회 2013 Journal of breast cancer Vol.16 No.3
Purpose: A more noninvasive evaluation of axillary lymph node in breast cancer is one of the principal challenges of breast cancer treatment. To detect axillary lymph node metastasis (ALNM)in T1 breast cancer, we have compared the axillary ultrasonography (AUS), contrast-enhanced magnetic resonance imaging (cMRI), and 18F-fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) to determine the most adequate test or a combination of tests. Methods: Retrospectively,349 T1 breast cancer patients who were preoperatively examined using AUS, cMRI, and PET/CT between 2008 and 2011and whom underwent pathological evaluations of axillary lymph nodes were reviewed and analyzed. Results: In total, 26.4%(92/349) of patients exhibited ALNM. The sensitivity, specificity,positive predictive value (PPV), negative predictive value (NPV),and accuracy of AUS for determining ALNM were 44.6%,88.7%, 58.6%, 81.7%, and 77.1%, respectively. cMRI was similar to AUS. The sensitivity, specificity, PPV, NPV, and accuracy of PET/CT were 44.5%, 94.2%, 73.2%, 82.6%, and 81.1%, respectively. The combination including cMRI and PET/CT was the most accurate with sensitivity, specificity, PPV, NPV, and accuracy values of 39.1%, 98.8%, 92.3%, 81.9%, and 83.1%, respectively. The mean number (3.5±4.2) of ALNMs in the patients who were positive based on cMRI and PET/CT and also pathologically proven to exhibit ALNM was significantly larger than the number (2.16±2.26) in other patients who exhibited ALNM (p=0.035). Conclusion: There are no definitive modalities for detecting ALNM in T1 breast cancers to replace sentinel lymph node biopsy (SLNB). If ALNM is suspected based on cMRI and PET/CT, the axillary dissection without SLNB might be a better option because it is related to high possibilities of ALNM and large axillary metastatic volumes.
Carcinoma Erysipelatoides Resulting from Cutaneous Metastasis of Breast Cancer
최향희,황승옥,김완욱,박호용,이수정,정지윤,정진향 한국유방암학회 2014 Journal of Breast Disease Vol.2 No.1
Cutaneous metastasis of breast cancer is easily misdiagnosed. Herein, we report two such cases. In the first case, a 49-year-old woman received neoadjuvant chemotherapy and underwent modified radical mastectomy for right locally advanced breast cancer (LABC). The erythematous skin lesion on the right chest wall was detected during ongoing trastuzumab treatment after radiotherapy. Radiation recall dermatitis was initially suspected, but the lesion persisted for 7 months, and a biopsy confirmed metastatic carcinoma showing multiple lymphatic tumor emboli. In the second case, a 42-year-old woman underwent breast-conserving surgery with axillary lymph node dissection for right LABC, and then adjuvant chemotherapy followed by trastuzumab treatment and radiotherapy. A localized slightly pruritic erythematous patch on the right breast persisted for 2 months, and allergic dermatitis was suspected. However, a 3-cm mass developed in the right breast during trastuzumab treatment, and a biopsy confirmed a diagnosis of ductal carcinoma with multiple lymphatic tumor emboli.
10세미만 소아에서 Pancuronium 과 Ketamine 및 Thiopental 투여후 Succinylcholine 에 의한 혈청 전해질치의 변동
이춘희,황승옥 대한마취과학회 1986 Korean Journal of Anesthesiology Vol.19 No.6
A small but significant rise in serum potassium level following succinylcholine administration has been observed in normal anesthetized patients. A dangerous increase in serum potassium concentrations after the administration of succinylcholine chloride has been reported in an increasing number of clinical conditions including burns, massive muscle trauma, tetanus and uremia. The hyperkalemia can be of sufficient degree to cause ventricular tachycardia and fibrillation. Serum electrolytes levels were measured in 40 healthy children during induction of anesthesia. They were less than 10 years old and were divided into 4 groups of 10 children each. Group I: Ketamine 2 mg/kg and succinylcholine 2 mg/kg Group II: Thiopental 5 mg/kg and succinylcholine 2 mg/kg Group III: Pretreatment with pancuronium 20 μg/kg followed in 3 min by ketamine 2 mg/kg and succinylcholine 2 mg/kg Group IV: Pretreatment with pancuronium 20 μg/kg followed in 3 min. by thiopental 5 mg/kg and succinylcholine 2 mg/kg. Venous blood samples r serum electrolyte estimation were obtained using a catheter placed in an antecubital vein. The following results were obtained: 1) Serum potassium concentration following administration of succinylcholine was significantly increased in group I (p$lt;0.05), but not in group II, III, IV. 2) Peak changes of serum potassium concentration were much higher in group I than group II and III, and the peak change in group IV was decreased below control values. Variance analysis indicate a significant difference between group I and the others(p$lt;0.05). 3) The peak change in serum potassium concentration in group I was from 1 min. to 3 min. after succinylcholine. 4) Serum Na+, Cl- and CO2, content were not significantly changed after succinylcholine and statistically not significant in all the groups.
개에서 일측성 저산소성 폐혈관 수축에 대한 반대측 호기말 양압호흡법의 영향
이춘희,황승옥 대한마취과학회 1996 Korean Journal of Anesthesiology Vol.30 No.5
Background: The purpose of this study was to measure the magnitude of the hypoxic pulmonary vasoconstriction(HPV) response to hypoxia of left lung and the effect of positive end-expira pressure(PEEP) of right lung on the regional HPV of left lung. Methods: Left thoracotomy was performed in eight female mongrel dogs. Left pulmonary blood flow (Q_L) was measured with electromagnetic blood flow probe and cardiac output with tliermodilution technique in triplicate. Systemic and pulmonary hemodynamics were measured via Swan-Ganz and indwelling catheters. Q_L was shown as percent of cardiac output(Q_L%). Total, right and left pulmonary v.ascular resistance(PVR_T, PVR_R and PVR_L) and pulmonary shunt(Q_S/Q_T) were calculated. Through the study, the right lung was ventilated continuously with 100% O₂, while the left lung was either ventilated with 100% O₂(control: phased Ⅰ)and a gas mixture containing 4%O₂, 3%CO₂ and 93% N₂(hypoxic: phase II and Ⅲ). In phase Ⅲ 10 cmH₂O PEET was applied to the light lung. Results: Leftoxia in phase Ⅱ results in a reduction of Ql% and PaO₂ and a elevation of PVRl without any changes of PVRt, Q_S/Q_T, MPAP and pulmonary perfusion pressure(PPP).With a 10 cmH₂O PEEP on the light lung in phase Ⅲ,Q_L% returned to the control level, but PVR_L was still higher as compared to control . PaO₂ and Q_S/Q_T were further aggravated. PVR_T and PVR_R were elevated in phase Ⅲ as compared to phase Ⅰand Ⅱ. Conclusion: It is concluded that contra-lateral PEET during unilateral HPV may aggravate systemic hypoxemia via blood flow diversion away from the PEETed area to the hypoxic area, but not abolish hypoxic pressor respone of hypoxic area.