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Min JJ, Tay CK, Ryu DK, Wi W, Sung K, Lee YT, Cho YH, Lee JH. Extracorporeal cardiopulmonary resuscitation in refractory intra-operative cardiac arrest: an observational study of 12-year outcomes in a single tertiary hospital. Anaesthesia 2018; 73:1515-1523. [DOI: 10.1111/anae.14412] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2018] [Indexed: 11/30/2022]
Affiliation(s)
- J. J. Min
- Department of Anaesthesiology and Pain Medicine; Department of Thoracic and Cardiovascular Surgery; Samsung Medical Centre; Sungkyukwan University School of Medicine; Seoul Korea
| | - C. K. Tay
- Department of Respiratory and Critical Care; Singapore General Hospital; Singapore
| | - D. K. Ryu
- Department of Anaesthesiology and Pain Medicine; Department of Thoracic and Cardiovascular Surgery; Samsung Medical Centre; Sungkyukwan University School of Medicine; Seoul Korea
| | - W. Wi
- Department of Anaesthesiology and Pain Medicine; Department of Thoracic and Cardiovascular Surgery; Samsung Medical Centre; Sungkyukwan University School of Medicine; Seoul Korea
| | - K. Sung
- Department of Thoracic and Cardiovascular Surgery; Samsung Medical Centre; Sungkyukwan University School of Medicine; Seoul Korea
| | - Y. T. Lee
- Department of Thoracic and Cardiovascular Surgery; Samsung Medical Centre; Sungkyukwan University School of Medicine; Seoul Korea
| | - Y. H. Cho
- Department of Thoracic and Cardiovascular Surgery; Samsung Medical Centre; Sungkyukwan University School of Medicine; Seoul Korea
| | - J.-H. Lee
- Department of Anaesthesiology and Pain Medicine; Department of Thoracic and Cardiovascular Surgery; Samsung Medical Centre; Sungkyukwan University School of Medicine; Seoul Korea
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Park H, Kim HS, Hong YJ, Min JJ, Kim HB, Kim M, Jeong HK, Lim KS, Kim JH, Kim MC, Sim DS, Kim JH, Kim DY, Ahn YK, Jeong MH. P3710Evaluation of treatment with fimasartan in animal myocardial infarction model using cardiac positron emission tomography with [18F]FPTP. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H Park
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - H S Kim
- Chonnam National University Hospital, Nuclear medicine, Gwangju, Korea Republic of
| | - Y J Hong
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - J J Min
- Chonnam National University Hospital, Nuclear medicine, Gwangju, Korea Republic of
| | - H B Kim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - M Kim
- Chonnam National University Hospital, Nephrology, Gwangju, Korea Republic of
| | - H K Jeong
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - K S Lim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - J H Kim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - M C Kim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - D S Sim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - J H Kim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - D Y Kim
- Chonnam National University Hospital, Nuclear medicine, Gwangju, Korea Republic of
| | - Y K Ahn
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - M H Jeong
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
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Kim TK, Nam K, Cho YJ, Min JJ, Hong YJ, Park KU, Hong DM, Jeon Y. Microvascular reactivity and endothelial glycocalyx degradation when administering hydroxyethyl starch or crystalloid during off-pump coronary artery bypass graft surgery: a randomised trial. Anaesthesia 2016; 72:204-213. [DOI: 10.1111/anae.13642] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2016] [Indexed: 01/30/2023]
Affiliation(s)
- T. K. Kim
- Department of Anaesthesiology and Pain Medicine; Seoul National University Hospital; Seoul Korea
| | - K. Nam
- Cheoncheon Public Health Subcentre; Jangsu Health Centre and County Hospital; Jangsu Jeollabuk-do Korea
| | - Y. J. Cho
- Department of Anaesthesiology and Pain Medicine; Seoul National University Hospital; Seoul Korea
| | - J. J. Min
- Department of Anaesthesiology and Pain Medicine; Seoul National University Hospital; Seoul Korea
| | - Y. J. Hong
- Department of Laboratory Medicine; Seoul National University Bundang Hospital; Seongnam Gyeongi-do Korea
| | - K. U. Park
- Department of Laboratory Medicine; Seoul National University Bundang Hospital; Seongnam Gyeongi-do Korea
| | - D. M. Hong
- Department of Anaesthesiology and Pain Medicine; Seoul National University Hospital; Seoul Korea
| | - Y. Jeon
- Department of Anaesthesiology and Pain Medicine; Seoul National University Hospital; Seoul Korea
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Min JJ, Kim HJ, Jung SY, Kim BG, Kwon K, Jung HJ, Kim TK, Hong DM, Park BJ, Jeon Y. Effects of Palonosetron on Perioperative Cardiovascular Complications in Patients Undergoing Noncardiac Surgery With General Anesthesia: A Retrospective Cohort Study. Clin Pharmacol Ther 2015; 98:96-106. [PMID: 25786663 DOI: 10.1002/cpt.121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 01/19/2015] [Accepted: 03/13/2015] [Indexed: 11/10/2022]
Abstract
We retrospectively investigated whether palonosetron administered during the induction of general anesthesia is associated with an increased risk of perioperative cardiovascular complications in a single tertiary center cohort consisting of 4,517 palonosetron-exposed patients and 4,517 propensity score-matched patients without palonosetron exposure. The primary endpoint was a composite of perioperative cardiovascular complications, including intraoperative cardiac arrhythmia, intraoperative cardiac death, and myocardial injury within the first postoperative week, and there was no significant difference between the groups (odds ratio [OR] = 1.04; 95% confidence interval [CI] = 0.92-1.19). As secondary endpoints, intraoperative cardioversion, cardiac compression, use of cardiovascular drugs, postoperative hospital stay, and in-hospital mortality showed no differences between the groups. However, the palonosetron group showed decreased intraoperative hypotension (OR = 0.88; 95% CI = 0.79-0.97) and length of postoperative intensive care unit (ICU) stay (4.26 ± 9.86 vs. 6.14 ± 16.75; P = 0.026). Palonosetron did not increase the rate of perioperative cardiovascular complications, and can therefore be used safely during anesthetic induction.
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Affiliation(s)
- J J Min
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - H J Kim
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Seoul, Republic of Korea
| | - S-Y Jung
- Korea Institute of Drug Safety and Risk Management (KIDS), Seoul, Republic of Korea
| | - B G Kim
- Korea Institute of Drug Safety and Risk Management (KIDS), Seoul, Republic of Korea
| | - K Kwon
- Korea Institute of Drug Safety and Risk Management (KIDS), Seoul, Republic of Korea
| | - H-J Jung
- Korea Institute of Drug Safety and Risk Management (KIDS), Seoul, Republic of Korea
| | - T K Kim
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - D M Hong
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - B-J Park
- Korea Institute of Drug Safety and Risk Management (KIDS), Seoul, Republic of Korea.,Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y Jeon
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
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5
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Min JJ, Nam K, Kim TK, Kim HJ, Seo JH, Hwang HY, Kim KB, Murkin JM, Hong DM, Jeon Y. Relationship between early postoperative C-reactive protein elevation and long-term postoperative major adverse cardiovascular and cerebral events in patients undergoing off-pump coronary artery bypass graft surgery: a retrospective study. Br J Anaesth 2014; 113:391-401. [PMID: 24829443 DOI: 10.1093/bja/aeu099] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Inflammation plays a key role in the pathogenesis of vascular occlusive diseases, such as myocardial infarction and stroke. Additionally, these conditions are predicted by C-reactive protein (CRP), a general inflammation marker. We hypothesized that the inflammation induced by surgery itself augments vascular occlusive disease. We retrospectively evaluated the relationship between postoperative CRP elevation and postoperative major adverse cardiovascular and cerebral events (MACCE) in patients undergoing off-pump coronary artery bypass surgery (OPCAB). METHODS The electronic medical records of 1046 patients who underwent OPCAB were reviewed retrospectively. The relationship between postoperative serum CRP and long-term postoperative MACCE (median follow-up 28 months) was investigated. RESULTS Patients were divided into quartiles according to maximum postoperative CRP levels (<18, 18-22, 22-27, ≥27 mg dl(-1)). The adjusted hazard ratios (HRs) were 2.15, 2.45, and 2.81, respectively (P=0.004), compared with the lowest quartile (<18 mg dl(-1)). In the multivariate analysis, the postoperative CRP quartile (HR 2.81; P=0.004), postoperative non-use of statins (HR 1.86; P=0.003), and postoperative maximum troponin I (HR 1.02; P<0.001) independently predicted postoperative MACCE, while preoperative CRP did not (P=0.203). Several parameters were correlated with postoperative maximum CRP level: body temperature (P=0.001) and heart rate (P<0.001) at the end of surgery; intraoperative last lactate (P<0.001) and base excess (P<0.001); and red blood cell transfusion (P=0.019). CONCLUSIONS Postoperative CRP elevation was associated with long-term postoperative MACCE in OPCAB patients. This was mitigated by postoperative statin medication. Furthermore, postoperative CRP elevation was associated with intraoperative parameters reflecting hypoperfusion and inflammation.
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Affiliation(s)
- J J Min
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - K Nam
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - T K Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H J Kim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J H Seo
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H Y Hwang
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Daehakro 101, Jongno-gu 110-744, Seoul, Republic of Korea
| | - K B Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Daehakro 101, Jongno-gu 110-744, Seoul, Republic of Korea
| | - J M Murkin
- Department of Anesthesiology and Perioperative Medicine, Schulich School of Medicine, University of Western Ontario, London, ON, Canada
| | - D M Hong
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y Jeon
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Hong DM, Lee JM, Seo JH, Min JJ, Jeon Y, Bahk JH. Pulse pressure variation to predict fluid responsiveness in spontaneously breathing patients: tidal vs. forced inspiratory breathing. Anaesthesia 2014; 69:717-22. [PMID: 24773446 DOI: 10.1111/anae.12678] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2014] [Indexed: 02/06/2023]
Abstract
We evaluated whether pulse pressure variation can predict fluid responsiveness in spontaneously breathing patients. Fifty-nine elective thoracic surgical patients were studied before induction of general anaesthesia. After volume expansion with hydroxyethyl starch 6 ml.kg(-1) , patients were defined as responders by a ≥ 15% increase in the cardiac index. Haemodynamic variables were measured before and after volume expansion and pulse pressure variations were calculated during tidal breathing and during forced inspiratory breathing. Median (IQR [range]) pulse pressure variation during forced inspiratory breathing was significantly higher in responders (n = 29) than in non-responders (n = 30) before volume expansion (18.2 (IQR 14.7-18.2 [9.3-31.3])% vs. 10.1 (IQR 8.3-12.6 [4.8-21.1])%, respectively, p < 0.001). The receiver-operating characteristic curve revealed that pulse pressure variation during forced inspiratory breathing could predict fluid responsiveness (area under the curve 0.910, p < 0.0001). Pulse pressure variation measured during forced inspiratory breathing can be used to guide fluid management in spontaneously breathing patients.
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Affiliation(s)
- D M Hong
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Korea
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Oui H, Lamm C, Stiver S, Williams B, Kwon SY, Bae Y, Jeon S, Park S, Min JJ, Choi J. Congenital lymphangiomatosis and an enteric duplication cyst in a young dog. J Small Anim Pract 2014; 55:379-82. [PMID: 24628429 DOI: 10.1111/jsap.12208] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2014] [Indexed: 01/07/2023]
Abstract
A two-year-old female poodle with abdominal distention was diagnosed with concurrent enteric duplication cyst and lymphangiomatosis. Both lesions were shown as cystic structures, but some characteristic features of enteric duplication cyst were identified including a thick cyst wall and shared blood supply with the duodenum. Although it was challenging to discriminate between the types of cyst based on diagnostic imaging, this report describes the characteristics of each type of lesion using several different imaging modalities.
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Affiliation(s)
- H Oui
- College of Veterinary Medicine, Chonnam National University, Gwangju, 500-757, South Korea
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8
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Jung SI, Lee CS, Park KH, Kim ES, Kim YJ, Kim GS, Lim DS, Moon JE, Min JJ, Bom HS, Jung MH, Chang YJ, Chae SL, Lee JH. Sero-epidemiology of hepatitis A virus infection among healthcare workers in Korean hospitals. J Hosp Infect 2009; 72:251-7. [PMID: 19446368 DOI: 10.1016/j.jhin.2009.03.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Accepted: 03/18/2009] [Indexed: 11/17/2022]
Abstract
Hepatitis A virus (HAV) has been increasingly reported in Korea as has an outbreak in Korean healthcare workers (HCWs). This 2008 study evaluated the sero-epidemiology of HAV infections among 3696 HCWs in four Korean hospitals. HCWs were tested for immunoglobulin G anti-HAV antibodies using commercially available kits. Data including demographic characteristics, occupation, workplace and serological status for other hepatitis viruses were collected. Statistical analyses were conducted to identify variables related to HAV seropositivity. Among the 3696 participants, 2742 (74%) were women and the majority (96%) were aged 20-39 years (median: 28; range: 19-68). Eighteen percent were physicians, 46% nurses, 10% nurses' aides, 11% paramedical technicians and 15% administrative staff. Seropositivity for HAV significantly increased with age (P<0.001): 1.8% for < or =24 years, 14.7% for 25-29 years, 41.8% for 30-34 years, 75.5% for 35-39 years, and 93.7% for > or =40 years. Among those aged 20-39 years, age-specific HAV seroprevalence was significantly lower in physicians than in the other occupational groups (P<0.001). In Korea, mass vaccination to HCWs aged < or =29 years or screening for seropositivity and vaccinating non-immune subjects aged 30-39 years should be considered, especially in physicians.
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Affiliation(s)
- S-I Jung
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
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Abstract
Recent progress in the development of noninvasive imaging technologies should allow molecular imaging to play a major role in the field of gene therapy. These tools have recently been validated in gene therapy models for continuous quantitative monitoring of the location(s), magnitude, and time variation of gene delivery and/or expression. This article reviews the use of radionuclide, magnetic resonance, and optical imaging technologies, as they have been used in imaging gene delivery and gene expression for gene therapy applications. The studies published to date lend support that noninvasive imaging tools will help to accelerate preclinical model validation, as well as allow for clinical monitoring of human gene therapy.
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Affiliation(s)
- J J Min
- Department of Radiology and Bio-X Program, Stanford University, Stanford, CA 94305-5427, USA
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Abstract
PURPOSE To evaluate the incidence and origin of abnormal focal pulmonary uptake during myocardial perfusion SPECT imaging (MSPECT). METHODS For evaluation of chest pain, 790 men and 581 women (mean age, 56 +/- 13 years) underwent MSPECT. All of them received adenosine for pharmacologic stress and Tc-99m tetrofosmin (TF, n = 817) or Tc-99m sestamibi (MIBI, n = 554) for myocardial perfusion imaging. RESULTS Review of chest radiography with or without computed tomography revealed 111 (8.1%) focal pulmonary diseases. Among them, 38 (34.2%) showed focal pulmonary uptake (TF, 22; MIBI, 16); 27 (30.7%) of 88 showed previous pulmonary tuberculosis; 2 of 10 (20%) benign pulmonary nodules; 4 of 5 (80%) metastatic lung cancers; 2 of 4 (50%) primary lung cancers; and 3 of 4 (75%) pneumonias. No difference in uptake was noted for the two imaging agents. Intensity of uptake did not vary with origin of the uptake. Focal abnormal pulmonary uptake was found in 2.8% of patients undergoing MSPECT and in 34.2% of patients in whom radiological examinations showed regional pulmonary disease. In patients with abnormal pulmonary uptake on MSPECT, 16% had a malignant lesion, whereas 75% of patients with a pulmonary nodule shown on radiography and focal pulmonary uptake on MSPECT had a malignant lesion. CONCLUSIONS Although the incidence of abnormal pulmonary uptake during MSPECT was very low, the incidence of malignant lesions in the patients with nodular pulmonary uptake was relatively high.
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Affiliation(s)
- S M Kim
- Department of Nuclear Medicine and Research Institute of Medical Sciences, Chonnam National University Medical School, Kwangju, Korea
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Min JJ, Chung JK, Lee YJ, Jeong JM, Lee DS, Jang JJ, Lee MC, Cho BY. Relationship between expression of the sodium/iodide symporter and 131I uptake in recurrent lesions of differentiated thyroid carcinoma. Eur J Nucl Med 2001; 28:639-45. [PMID: 11383871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
The sodium/iodide symporter (NIS) is known to be responsible for the active accumulation of iodide within the thyroid gland. We evaluated the relationship between the expression of NIS in primary or lymph node lesions and iodine-131 uptake in recurrent lesions of differentiated thyroid cancer. In 67 patients with differentiated thyroid cancer (5 follicular and 62 papillary carcinomas), the expression of NIS was analysed by immunohistochemical staining using polyclonal antibodies against human NIS. We used paraffin block tissues of primary tumours or metastatic lesions, and also assessed 131I uptake in recurrent lesions of thyroid cancer on post-operative 131I whole-body scan. Immunohistochemical staining was positive in 22 patients (32.8%), including 2 of 5 follicular and 20 of 62 papillary carcinomas. Recurrence was confirmed in 40 patients pathologically or clinically by serum thyroglobulin, 131I scan, fluorine-18 fluorodeoxyglucose positron emission tomography and/or computed tomography. Among these 40 patients, 28 showed positive uptake on 131I scan. Fourteen tumour specimens out of 28 (50%) were positive by NIS immunohistochemical staining. The remaining 12 patients with recurrent cancer showed negative 131I scans, and all specimens were negative by NIS immunohistochemical staining. Thus, NIS immunohistochemical staining predicted 131I uptake in recurrent cancer with a 100% positive predictive value and a 46.2% negative predictive value. There was no difference in the positivity of NIS according to the site of recurrence on 131I scan. Outcome of 131I therapy could be assessed in 22 of the 28 patients who showed 131I uptake in recurrent lesions. Patients with positive NIS immunostaining responded to 131I therapy better than did patients with negative immunostaining (P<0.05). In conclusion, NIS immunohistochemical staining showed a high positive predictive value in predicting iodine uptake. Positive immunohistochemical staining of human NIS in primary or lymph node lesions may predict 131I accumulation and effectiveness of 131I therapy in recurrent lesions.
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MESH Headings
- Adenocarcinoma, Follicular/diagnostic imaging
- Adenocarcinoma, Follicular/metabolism
- Adenocarcinoma, Follicular/radiotherapy
- Adenocarcinoma, Follicular/secondary
- Adolescent
- Adult
- Aged
- Bone Neoplasms/diagnostic imaging
- Bone Neoplasms/secondary
- Carcinoma, Papillary/diagnostic imaging
- Carcinoma, Papillary/metabolism
- Carcinoma, Papillary/radiotherapy
- Carcinoma, Papillary/secondary
- Female
- Fluorodeoxyglucose F18
- Humans
- Immunohistochemistry
- Iodine Radioisotopes/pharmacokinetics
- Iodine Radioisotopes/therapeutic use
- Lung Neoplasms/diagnostic imaging
- Lung Neoplasms/secondary
- Lymph Nodes/metabolism
- Lymphatic Metastasis
- Male
- Middle Aged
- Neoplasm Recurrence, Local/diagnostic imaging
- Neoplasm Recurrence, Local/metabolism
- Predictive Value of Tests
- Radiopharmaceuticals
- Sensitivity and Specificity
- Symporters/metabolism
- Thyroid Neoplasms/diagnostic imaging
- Thyroid Neoplasms/metabolism
- Thyroid Neoplasms/pathology
- Thyroid Neoplasms/radiotherapy
- Tomography, Emission-Computed
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Affiliation(s)
- J J Min
- Department of Nuclear Medicine, Seoul National University College of Medicine, Korea
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Abstract
PURPOSE In this study, the authors wanted to determine whether dipyridamole-modulated MIBI (dipyridamole-MIBI) could enhance the prediction of the response to chemotherapy in patients with small cell lung cancer. METHODS Twenty-seven patients with biopsy-proved small cell lung cancer (25 men, 2 women; mean age, 61 +/- 7 years) underwent dipyridamole-MIBI SPECT 3 to 7 days before starting chemotherapy (80 mg/m2 etoposide and 80 mg/m2 cisplatin every 3 or 4 weeks for at least two cycles). Tomographic images before and after dipyridamole (0.84 mg/kg) were acquired 1 hour after injection of 370 (10 mCi) and 1,110 (30 mCi) MBq MIBI, respectively. The response to chemotherapy was grouped as specified as complete response (CR), partial (PR), no change (NC), or progressive disease (PD), according to the change in tumor size on chest roentgenography and CT. Patients showing CR and PR were classified as responders, and those who showed NC and PD were considered nonresponders. RESULTS Among the 27 patients, 22 were responders (3 CR, 19 PR) and 5 were nonresponders (3 NC, 2 PD). The tumor-to-normal lung ratio (T:NL) of responders was significantly higher than that of nonresponders. The diagnostic accuracy of the T:NL ratio to differentiate responders and nonresponders was 33.3%, with a cutoff value of 2.5, which was significantly improved to 77.8% when an increased T:NL ratio after dipyridamole was assigned to a nonresponder. Furthermore, all patients with CR showed diminished T:NL ratios after dipyridamole, and all patients with NR showed an increased T:NL ratio after dipyridamole. CONCLUSION Dipyridamole-MIBI SPECT could enhance the prediction of response to chemotherapy in patients with small cell lung cancer.
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Affiliation(s)
- H S Bom
- Department of Nuclear Medicine, Chonnam University Hospital, Kwangju, Korea.
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13
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Bom HS, Cho JG, Song HC, Min JJ, Jeong HJ, Kim JY, Kang JC. Tc-99m pyrophosphate uptake in small areas of myocardial injury produced by radiofrequency catheter ablation of arrhythmias. Clin Nucl Med 1999; 24:57-9. [PMID: 9890496 DOI: 10.1097/00003072-199901000-00013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- H S Bom
- Department of Nuclear Medicine, Chonnam University Hospital, Kwangju, Korea.
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14
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Bom HS, Kim YC, Song HC, Min JJ, Kim JY, Park KO. Technetium-99m-MIBI uptake in small cell lung cancer. J Nucl Med 1998; 39:91-4. [PMID: 9443743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
UNLABELLED Patients with small cell lung cancer (SCLC) often fail to respond to chemotherapy due to multidrug resistance (MDR). Technetium-99m-MIBI was reported to be a suitable transport substrate of P-glycoprotein, which is a cytoplasmic membrane protein encoded by the MDR gene. The purpose of this study was to evaluate whether or not the degree of MIBI uptake in SCLC or its retention on delayed imaging correlated with response to chemotherapy. METHODS Twenty-five patients (19 men, 6 women; mean age 59 +/- 10 yr) with biopsy-proven SCLC had MIBI SPECT 3-7 days before starting chemotherapy. Imaging was acquired 1 and 4 hr after injection of 740 MBq MIBI using a single-head rotating gamma camera. Tumor-to-normal lung uptake ratio (T/NL) was measured. Percent retention (%R) was measured as: %R = 100 x (T/NL at 4 hr)/(T/NL at 1 hr). All patients received VAP chemotherapy (VP-16 100 mg/m2, adriamycin 40 mg/m2, cisplatin 25 mg/m2) every 4 wk for at least three times. Response to chemotherapy was grouped as complete remission, partial remission and no remission according to the change of tumor size on chest radiograph and CT images. Differences in T/NL and %R among the three groups were analyzed using ANOVA. RESULTS T/NL of patients with complete remission (n = 7) and partial remission (n = 10) were significantly higher than that of no remission (n = 8) in 1 hr and 4 hr. T/NL at 1 hr in three groups were 2.75 +/- 0.78, 2.35 +/- 0.31 and 1.65 +/- 0.36, respectively. T/NL at 4 hr in three groups was 2.61 +/- 0.94, 2.48 +/- 0.50 and 1.66 +/- 0.42, respectively. However, %R was not different among three groups. Percent retention in three groups was 109.40 +/- 22.10, 96.71 +/- 14.25 and 103.59 +/- 28.43, respectively. CONCLUSION SCLC with a higher MIBI uptake was more likely to respond to chemotherapy than that with a lower uptake. However, there was a considerable overlap of MIBI uptake among subjects. No significant correlation between the MIBI retention between 1 hr and 4 hr, and the response to chemotherapy was noted.
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Affiliation(s)
- H S Bom
- Department of Nuclear Medicine, Chonnam University Hospital, Kwangju, Korea
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Tarczynski MC, Meyer WJ, Min JJ, Wood KA, Hellwig RJ. Two-minute miniprep method for plasmid DNA isolation. Biotechniques 1994; 16:514-9. [PMID: 8185927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
An extremely rapid method, INSTA-PREP, has been developed to prepare plasmid DNA from 1 to 3 mL miniprep Escherichia coli bacterial cultures. Direct extraction of plasmid DNA from E. coli bacterial cells is achieved by a two-phase solution consisting of phenol-chloroform-isoamyl alcohol and water or buffer with efficient separation of the phases by centrifugation in the presence of the INSTA-PREP gel barrier material. Processing time, from E. coli culture to usable plasmid DNA, is two minutes or less per sample. Supercoiled plasmid DNA yields ranged from 3 to 10 micrograms per mL of culture depending on plasmid copy number. Plasmid DNAs prepared by INSTA-PREP were analyzed and are suitable for use in molecular biology procedures including restriction digestion, ligation with T4 DNA ligase, bacterial transformation, PCR, cultured cell transfection and T7 DNA polymerase or thermostable DNA polymerase-mediated dideoxynucleotide sequencing.
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Min JJ, Zassenhaus HP. Characterization of a novel NTP-dependent 3' exoribonuclease from yeast mitochondria. SAAS Bull Biochem Biotechnol 1991; 4:1-5. [PMID: 1370038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
We have purified and characterized a novel exoribonuclease that was isolated from the mitochondria of Saccharomyces cerevisiae. The enzyme degraded RNA in a 3' to 5' direction and was dependent on nucleotide triphosphates for activity. All eight of the standard ribo- and deoxyribonucleotide triphosphates supported activity with an apparent Km ranging from 20 to 90 uM. The enzyme also exhibited an RNA-dependent ATPase activity. Evidence suggests that in vivo the enzyme may associate with mitochondrial factors which can alleviate the dependence on nucleotide triphosphates for enzymatic activity. A model is discussed for the role of the enzyme in regulating the turnover of mitochondrial RNAs.
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Affiliation(s)
- J J Min
- Department of Microbiology, St. Louis University Medical Center, Missouri 63104
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