1.Identification of Preoperative Magnetic Resonance Imaging Features Associated with Positive Resection Margins in Breast Cancer: A Retrospective Study.
Jung Hyun KANG ; Ji Hyun YOUK ; Jeong Ah KIM ; Hye Mi GWEON ; Na Lae EUN ; Kyung Hee KO ; Eun Ju SON
Korean Journal of Radiology 2018;19(5):897-904
OBJECTIVE: To determine which preoperative breast magnetic resonance imaging (MRI) findings and clinicopathologic features are associated with positive resection margins at the time of breast-conserving surgery (BCS) in patients with breast cancer. MATERIALS AND METHODS: We reviewed preoperative breast MRI and clinicopathologic features of 120 patients (mean age, 53.3 years; age range, 27–79 years) with breast cancer who had undergone BCS in 2015. Tumor size on MRI, multifocality, patterns of enhancing lesions (mass without non-mass enhancement [NME] vs. NME with or without mass), mass characteristics (shape, margin, internal enhancement characteristics), NME (distribution, internal enhancement patterns), and breast parenchymal enhancement (BPE; weak, strong) were analyzed. We also evaluated age, tumor size, histology, lymphovascular invasion, T stage, N stage, and hormonal receptors. Univariate and multivariate logistic regression analyses were used to determine the correlation between clinicopathological features, MRI findings, and positive resection margins. RESULTS: In univariate analysis, tumor size on MRI, multifocality, NME with or without mass, and segmental distribution of NME were correlated with positive resection margins. Among the clinicopathological factors, tumor size of the invasive breast cancer and in situ components were significantly correlated with a positive resection margin. Multivariate analysis revealed that NME with or without mass was an independent predictor of positive resection margins (odds ratio [OR] = 7.00; p < 0.001). Strong BPE was a weak predictor of positive resection margins (OR = 2.59; p = 0.076). CONCLUSION: Non-mass enhancement with or without mass is significantly associated with a positive resection margin in patients with breast cancer. In patients with NME, segmental distribution was significantly correlated with positive resection margins.
Breast Neoplasms*
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Breast*
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Humans
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Logistic Models
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Magnetic Resonance Imaging*
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Mastectomy, Segmental
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Multivariate Analysis
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Retrospective Studies*
2.Initial Serum Ammonia as a Predictor of Mortality in Patients with Acute Glufosinate Ammonium Herbicide Poisoning
Eun Na LAE KO ; Dong Hoon KIM ; Soo Hoon LEE ; Jin Hee JEONG ; Sang Bong LEE ; Aejin SUNG ; Ja Hyoen SUH ; Changwoo KANG
Journal of The Korean Society of Clinical Toxicology 2020;18(2):136-140
Purpose:
The association of the initial serum ammonia level with in-hospital mortality in patients with acute glufosinate-ammonium herbicide poisoning was studied.
Methods:
This retrospective cohort study was conducted between March 2012 and August 2019 in the emergency department after glufosinate-ammonium herbicide poisoning. Survivors and non-survivors were analyzed using a Mann-Whitney U test and Fisher’s exact test. Multivariate logistic regression analysis was performed to determine the independent risk factors for mortality.
Results:
One hundred and six patients were enrolled; 11 died, yielding a mortality of 10.4%. The serum bicarbonate level was significantly lower in the non-survival group than the survival group. Age, serum ammonia, blood urea nitrogen, creatinine levels, SOFA score, and APACHE II score were significantly higher in the non-survival group than the survival group. Age, serum ammonia, and creatinine level were independent risk factors for mortality in multivariate logistic regression analysis.
Conclusion
The initial serum ammonia level is associated with mortality in patients with acute glufosinate herbicide poisoning.
3.Initial Serum Ammonia as a Predictor of Mortality in Patients with Acute Glufosinate Ammonium Herbicide Poisoning
Eun Na LAE KO ; Dong Hoon KIM ; Soo Hoon LEE ; Jin Hee JEONG ; Sang Bong LEE ; Aejin SUNG ; Ja Hyoen SUH ; Changwoo KANG
Journal of The Korean Society of Clinical Toxicology 2020;18(2):136-140
Purpose:
The association of the initial serum ammonia level with in-hospital mortality in patients with acute glufosinate-ammonium herbicide poisoning was studied.
Methods:
This retrospective cohort study was conducted between March 2012 and August 2019 in the emergency department after glufosinate-ammonium herbicide poisoning. Survivors and non-survivors were analyzed using a Mann-Whitney U test and Fisher’s exact test. Multivariate logistic regression analysis was performed to determine the independent risk factors for mortality.
Results:
One hundred and six patients were enrolled; 11 died, yielding a mortality of 10.4%. The serum bicarbonate level was significantly lower in the non-survival group than the survival group. Age, serum ammonia, blood urea nitrogen, creatinine levels, SOFA score, and APACHE II score were significantly higher in the non-survival group than the survival group. Age, serum ammonia, and creatinine level were independent risk factors for mortality in multivariate logistic regression analysis.
Conclusion
The initial serum ammonia level is associated with mortality in patients with acute glufosinate herbicide poisoning.