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Jeong E, Park Y, Jang H, Lee N, Jo Y, Kim J. Timing of Re-Laparotomy in Blunt Trauma Patients With Damage-Control Laparotomy. J Surg Res 2024; 296:376-382. [PMID: 38309219 DOI: 10.1016/j.jss.2023.11.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 10/26/2023] [Accepted: 11/12/2023] [Indexed: 02/05/2024]
Abstract
INTRODUCTION Damage-control laparotomy (DCL) was initially designed to treat patients with severe hemorrhage. There are various opinions on when to return to the operating room after DCL and there are no definitive data on the exact timing of re-laparotomy. METHODS All patients at regional referral trauma center requiring a DCL due to blunt trauma between January 2012 and September 2021 (N = 160) were retrospectively reviewed from patients' electronic medical records. The primary fascial closure rate, lengths of intensive care unit stay and mechanical ventilation, mortality, and complications were compared in patients who underwent re-laparotomy before and after 48 h. RESULTS One hundred one patients (70 in the ≤48 h group [early] and 31 in the >48 h group [late]) were included. Baseline patient characteristics of age, body mass index, injury severity score, and initial systolic blood pressure and laboratory finding such as hemoglobin, base excess, and lactate were similar between the two groups. Also, there were no differences in reason for DCL and operation time. The time interval from the DCL to the first re-laparotomy was 39 (29-43) h and 59 (55-66) h in the early and late groups, respectively. There were no significant differences in the rate of the primary fascial closure rate (91.4% versus 93.5%, P = 1.00), lengths of stay in the intensive care unit (10 [7-18] versus 12 [8-16], P = 0.553), ventilator days (6 [4-10] versus 7 [5-10], P = 0.173), mortality (20.0% versus 19.4%, P = 0.94), and complications between the two groups. CONCLUSIONS The timing of re-laparotomy after DCL due to blunt abdominal trauma should be determined in consideration of various factors such as correction of coagulopathy, primary fascial closure, and complications. This study showed there was no significant difference in patient groups who underwent re-laparotomy before and after 48 h after DCL. Considering these results, it is better to determine the timing of re-laparotomy with a focus on physiologic recovery rather than setting a specific time.
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Affiliation(s)
- Euisung Jeong
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
| | - Yunchul Park
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
| | - Hyunseok Jang
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
| | - Naa Lee
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
| | - Younggoun Jo
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea.
| | - Jungchul Kim
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, South Korea
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Lee N, Jeong E, Park Y, Jo Y, Kim J, Jang H. Serum lactate normalization time associated with prolonged postoperative ileus after surgical management of the small bowel and/or mesenteric injuries. BMC Surg 2024; 24:94. [PMID: 38515100 PMCID: PMC10956389 DOI: 10.1186/s12893-024-02388-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 03/13/2024] [Indexed: 03/23/2024] Open
Abstract
BACK GROUND Determining the optimal timing of postoperative oral feeding in trauma patients who have undergone abdominal surgery with small bowel and/or mesenteric injuries is challenging. The aim of this study is to investigate serum lactate as a factor that can predict oral feeding tolerance and prolonged postoperative ileus (PPOI) in patients who underwent surgery for small bowel and/or mesenteric injury due to trauma. METHODS The single center retrospective observational study was conducted on 367 patients who underwent surgery for small bowel and/or mesenteric injury between January 2013 and July 2021. The patient group was divided into two groups based on whether the peak serum lactate was over 2mmol/L (18 mg/dL). In the group of lactate > 2mmol/L, it was divided into prolonged postoperative ileus (PPOI) groups and groups rather than PPOI. RESULTS Patients in the peak serum lactate > 2 group had tendency to use vasopressors, lower initial systolic blood pressure, larger number of packed red blood cells for 24 h, higher injury severity score, higher PPOI incidence, and a tendency for delayed oral intake tolerance. In peak serum lactate greater than 2 mmol/L group, the lactate normalization time (OR 1.699, p = 0.04), quantity of FFP transfusion for 24 h (OR 1.145, p = 0.012), and creatine kinase (OR 1.001, p = 0.023) were related to PPOI. The lactate normalization time had the highest correlation. CONCLUSION In patients undergoing surgical management for small bowel and/or mesenteric injury after trauma, serum lactate normalization time affects oral intake tolerance and prolongs postoperative ileus.
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Affiliation(s)
- Naa Lee
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong- ro, Dong-gu, Gwangju, 61469, Republic of Korea
| | - Euisung Jeong
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong- ro, Dong-gu, Gwangju, 61469, Republic of Korea
| | - Yunchul Park
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong- ro, Dong-gu, Gwangju, 61469, Republic of Korea
| | - Younggoun Jo
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong- ro, Dong-gu, Gwangju, 61469, Republic of Korea
| | - Jungchul Kim
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong- ro, Dong-gu, Gwangju, 61469, Republic of Korea
| | - Hyunseok Jang
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong- ro, Dong-gu, Gwangju, 61469, Republic of Korea.
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Lim HJ, Jang H, Lee N, Jeong E, Park Y, Jo Y, Kim J, Lee YE, Choi HJ, Kee SJ, Shin JH, Shin MG. Prediction of Mid-term Platelet Transfusion in Stable Trauma Patients Using Rotational Thromboelastometry. Ann Lab Med 2024; 44:74-81. [PMID: 37665288 PMCID: PMC10485857 DOI: 10.3343/alm.2024.44.1.74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/05/2023] [Accepted: 08/04/2023] [Indexed: 09/05/2023] Open
Abstract
Background Rotational thromboelastometry (ROTEM; TEM International GmbH, Munich, Germany) is a global coagulation test that guides evidence-based platelet transfusion in trauma patients. We evaluated ROTEM parameters for predicting mid-term (five days) platelet transfusion in trauma patients. Methods Maximum clot firmness and clot amplitudes after 5, 10, and 15 mins (A5, A10, and A15, respectively) of fibrin-specific ROTEM (FIBTEM) and extrinsically activated ROTEM (EXTEM) were retrospectively collected from 82 hospitalized, stable, non-bleeding trauma patients after successful initial resuscitation. Platelet-specific ROTEM (PLTEM) was calculated by subtracting FIBTEM from EXTEM. Platelet transfusions were reviewed for five days after ROTEM. Results The areas under the curve for FIBTEM, EXTEM, and PLTEM predicting platelet concentrate transfusion of >12 U at mid-term were 0.915-0.923, 0.878-0.896, and 0.551-0.735, respectively. FIBTEM and EXTEM parameters were comparable to those of fibrinogen, fibrin/fibrinogen degradation products, D-dimer, and antithrombin III. Strong correlations (r>0.7) were noted between platelet count and EXTEM (A5, A10, and A15) or PLTEM (A5), platelet function (per platelet count) and EXTEM (A10 and A15), and fibrinogen levels and all FIBTEM parameters. Conclusions FIBTEM and EXTEM can reliably predict mid-term platelet transfusion in trauma patients. FIBTEM, EXTEM, and PLTEM parameters correlate with conventional coagulation tests (platelets and fibrinogen).
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Affiliation(s)
- Ha Jin Lim
- Department of Laboratory Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Hyunseok Jang
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Naa Lee
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Euisung Jeong
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Yunchul Park
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Younggoun Jo
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Jungchul Kim
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Young Eun Lee
- Department of Laboratory Medicine, Chonnam National University Medical School and Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Hyun-Jung Choi
- Department of Laboratory Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Seung-Jung Kee
- Department of Laboratory Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Jong Hee Shin
- Department of Laboratory Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea
| | - Myung Geun Shin
- Department of Laboratory Medicine, Chonnam National University Medical School and Chonnam National University Hwasun Hospital, Hwasun, Korea
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Jang H, Lee N, Jeong E, Park Y, Jo Y, Kim J, Kim D. Abdominal compartment syndrome in critically ill patients. Acute Crit Care 2023; 38:399-408. [PMID: 38052507 DOI: 10.4266/acc.2023.01263] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Received: 09/27/2023] [Accepted: 11/13/2023] [Indexed: 12/07/2023] Open
Abstract
Intra-abdominal hypertension can have severe consequences, including abdominal compartment syndrome, which can contribute to multi-organ failure. An increase in intra-abdominal hypertension is influenced by factors such as diminished abdominal wall compliance, increased intraluminal content, and certain systemic conditions. Regular measurement of intra-abdominal pressure is essential, and particular attention must be paid to patient positioning. Nonsurgical treatments, such as decompression of intraluminal content using a nasogastric tube, percutaneous drainage, and fluid balance optimization, play crucial roles. Additionally, point-of-care ultrasonography aids in the diagnosis and treatment of intra-abdominal hypertension. Emphasizing the importance of regular measurements, timely decompressive laparotomy is a definitive, but complex, treatment option. Balancing the urgency of surgical intervention against potential postoperative complications is challenging.
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Affiliation(s)
- Hyunseok Jang
- Division of Trauma, Department of Surgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Naa Lee
- Division of Trauma, Department of Surgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Euisung Jeong
- Division of Trauma, Department of Surgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Yunchul Park
- Division of Trauma, Department of Surgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Younggoun Jo
- Division of Trauma, Department of Surgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Jungchul Kim
- Division of Trauma, Department of Surgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Dowan Kim
- Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
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Lourenço A, Lee N, Charlwood F, Lambert J, Vera-Sánchez JA, Hussein M, Shipley D, Romano F, Lowe M, Clarke M, Lorentini S, Mazal A, Pettingell J, Palmans H, Thomas R. A portable primary-standard level graphite calorimeter for absolute dosimetry in clinical pencil beam scanning proton beams. Phys Med Biol 2023; 68:175005. [PMID: 37414003 DOI: 10.1088/1361-6560/ace50f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 07/06/2023] [Indexed: 07/08/2023]
Abstract
Objective. To report the use of a portable primary standard level graphite calorimeter for direct dose determination in clinical pencil beam scanning proton beams, which forms part of the recommendations of the proposed Institute of Physics and Engineering in Medicine (IPEM) Code of Practice (CoP) for proton therapy dosimetry.Approach. The primary standard proton calorimeter (PSPC) was developed at the National Physical Laboratory (NPL) and measurements were performed at four clinical proton therapy facilities that use pencil beam scanning for beam delivery. Correction factors for the presence of impurities and vacuum gaps were calculated and applied, as well as dose conversion factors to obtain dose to water. Measurements were performed in the middle of 10 × 10 × 10 cm3homogeneous dose volumes, centred at 10.0, 15.0 and 25.0 g·cm-2depth in water. The absorbed dose to water determined with the calorimeter was compared to the dose obtained using PTW Roos-type ionisation chambers calibrated in terms of absorbed dose to water in60Co applying the recommendations in the IAEA TRS-398 CoP.Main results.The relative dose difference between the two protocols varied between 0.4% and 2.1% depending on the facility. The reported overall uncertainty in the determination of absorbed dose to water using the calorimeter is 0.9% (k= 1), which corresponds to a significant reduction of uncertainty in comparison with the TRS-398 CoP (currently with an uncertainty equal or larger than 2.0% (k= 1) for proton beams).Significance. The establishment of a purpose-built primary standard and associated CoP will considerably reduce the uncertainty of the absorbed dose to water determination and ensure improved accuracy and consistency in the dose delivered to patients treated with proton therapy and bring proton reference dosimetry uncertainty in line with megavoltage photon radiotherapy.
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Affiliation(s)
- A Lourenço
- Medical Radiation Science Group, National Physical Laboratory, Teddington TW11 0LW, United Kingdom
- Department of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, United Kingdom
| | - N Lee
- Medical Radiation Science Group, National Physical Laboratory, Teddington TW11 0LW, United Kingdom
| | - F Charlwood
- Christie Medical Physics and Engineering, The Christie NHS Foundation Trust, Manchester M20 4BX, United Kingdom
| | - J Lambert
- Rutherford Cancer Centre South Wales, Newport NP10 8FZ, United Kingdom
| | - J A Vera-Sánchez
- Centro de Protonterapia Quirónsalud, E-28223 Pozuelo de Alarcón, Madrid, Spain
| | - M Hussein
- Medical Radiation Science Group, National Physical Laboratory, Teddington TW11 0LW, United Kingdom
- Department of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, United Kingdom
| | - D Shipley
- Medical Radiation Science Group, National Physical Laboratory, Teddington TW11 0LW, United Kingdom
| | - F Romano
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Via S Sofia 64, I-95123, Catania, Italy
| | - M Lowe
- Christie Medical Physics and Engineering, The Christie NHS Foundation Trust, Manchester M20 4BX, United Kingdom
| | - M Clarke
- Christie Medical Physics and Engineering, The Christie NHS Foundation Trust, Manchester M20 4BX, United Kingdom
| | - S Lorentini
- Protontherapy Department, Azienda Provinciale per i Servizi Sanitari (APSS), Trento, Italy
| | - A Mazal
- Centro de Protonterapia Quirónsalud, E-28223 Pozuelo de Alarcón, Madrid, Spain
| | - J Pettingell
- Rutherford Cancer Centre North East, Bedlington NE22 7FD, United Kingdom
| | - H Palmans
- Medical Radiation Science Group, National Physical Laboratory, Teddington TW11 0LW, United Kingdom
- Medical Physics Group, MedAustron Ion Therapy Center, A-2700 Wiener Neustadt, Austria
| | - R Thomas
- Medical Radiation Science Group, National Physical Laboratory, Teddington TW11 0LW, United Kingdom
- University of Surrey, Faculty of Engineering and Physical Science, Guildford GU2 7XH, United Kingdom
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Jang H, An S, Lee N, Jeong E, Park Y, Kim J, Jo Y. Factors associated with enteral nutrition tolerance after trauma laparotomy of the small bowel and mesenteric injuries by blunt trauma. BMC Surg 2023; 23:61. [PMID: 36959602 PMCID: PMC10037781 DOI: 10.1186/s12893-023-01955-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Received: 10/05/2022] [Accepted: 03/07/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND In patients with blunt injury due to abdominal trauma, the common cause for laparotomy is damage to the small bowel and mesentery. Recently, postoperative early enteral nutrition (EEN) has been recommended for abdominal surgery. However, EEN in patients with blunt bowel and/or mesenteric injury (BBMI) has not been established. Therefore, this study aimed to identify the factors that affect early postoperative small bowel obstruction (EPSBO) and the date of tolerance to solid food and defecation (SF + D) after surgery in patients with BBMI. METHODS We retrospectively reviewed patients who underwent laparotomy for BBMI at a single regional trauma center between January 2013 and July 2021. A total of 257 patients were included to analyze the factors associated with enteral nutrition tolerance in patients with EPSBO and the postoperative day of tolerance to SF + D. RESULTS The incidence of EPSBO in patients with BBMI was affected by male sex, small bowel organ injury scale (OIS) score, mesentery OIS score, amount of crystalloid, blood transfusion, and postoperative drain removal date. The higher the mesentery OIS score, the higher was the EPSBO incidence, whereas the small bowel OIS did not increase the incidence of EPSBO. The amount of crystalloid infused within 24 h; the amount of packed red blood cells, fresh frozen plasma, and platelet concentrate transfused; the time of drain removal; Injury Severity Score; and extremity abbreviated injury scale (AIS) score were correlated with the day of tolerance to SF + D. Multivariate analysis between the EPSBO and non-EPSBO groups identified mesentery and small bowel OIS scores as the factors related to EPSBO. CONCLUSION Mesenteric injury has a greater impact on EPSBO than small bowel injury. Further research is needed to determine whether the mesentery OIS score should be considered during EEN in patients with BBMI. The amount of crystalloid infused and transfused blood components within 24 h, time of drain removal, injury severity score, and extremity AIS score are related to the postoperative day on which patients can tolerate SF + D.
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Affiliation(s)
- Hyunseok Jang
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, 61469, Gwangju, Republic of Korea
| | - Sangyun An
- Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Naa Lee
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, 61469, Gwangju, Republic of Korea
| | - Euisung Jeong
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, 61469, Gwangju, Republic of Korea
| | - Yunchul Park
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, 61469, Gwangju, Republic of Korea
| | - Jungchul Kim
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, 61469, Gwangju, Republic of Korea
| | - Younggoun Jo
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, 61469, Gwangju, Republic of Korea.
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van den Elzen P, Sander T, Palmans H, McManus M, Woodall N, Lee N, Fox OJL, Jones RM, Angal-Kalinin D, Subiel A. Alanine response to low energy synchrotron x-ray radiation. Phys Med Biol 2023; 68:065011. [PMID: 36731142 DOI: 10.1088/1361-6560/acb886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 02/01/2023] [Indexed: 02/04/2023]
Abstract
Objective. The radiation response of alanine is very well characterized in the MV photon energy range where it can be used to determine the dose delivered with an accuracy better than 1%, making it suitable as a secondary standard detector in cancer radiation therapy. This is not the case in the very low energy keV x-ray range where the alanine response is affected by large uncertainties and is strongly dependent on the x-ray beam energy. This motivated the study undertaken here.Approach. Alanine pellets with a nominal thickness of 0.5 mm and diameter of 5 mm were irradiated with monoenergetic x-rays at the Diamond Light Source synchrotron, to quantify their response in the 8-20 keV range relative to60Co radiation. The absorbed dose to graphite was measured with a small portable graphite calorimeter, and the DOSRZnrc code in the EGSnrc Monte Carlo package was used to calculate conversion factors between the measured dose to graphite and the absorbed dose to water delivered to the alanine pellets. GafChromic EBT3 films were used to measure the beam profile for modelling in the MC simulations.Main results. The relative responses measured in this energy range were found to range from 0.616 to 0.643, with a combined relative expanded uncertainty of 3.4%-3.5% (k= 2), where the majority of the uncertainty originated from the uncertainty in the alanine readout, due to the small size of the pellets used.Significance. The measured values were in good agreement with previously published data in the overlapping region of x-ray energies, while this work extended the dataset to lower energies. By measuring the response to monoenergetic x-rays, the response to a more complex broad-spectrum x-ray source can be inferred if the spectrum is known, meaning that this work supports the establishment of alanine as a secondary standard dosimeter for low-energy x-ray sources.
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Affiliation(s)
- P van den Elzen
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
- University of Manchester, Department of Physics and Astronomy, Manchester, United Kingdom
- The Cockcroft Institute of Accelerator Science and Technology, Daresbury, United Kingdom
| | - T Sander
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
| | - H Palmans
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
- MedAustron Ion Therapy Center, Wiener Neustadt, Austria
| | - M McManus
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
| | - N Woodall
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
| | - N Lee
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
| | - O J L Fox
- Diamond Light Source Ltd, Harwell Science Innovation Campus, Didcot, United Kingdom
| | - R M Jones
- University of Manchester, Department of Physics and Astronomy, Manchester, United Kingdom
- The Cockcroft Institute of Accelerator Science and Technology, Daresbury, United Kingdom
| | - D Angal-Kalinin
- University of Manchester, Department of Physics and Astronomy, Manchester, United Kingdom
- The Cockcroft Institute of Accelerator Science and Technology, Daresbury, United Kingdom
- Science and Technology Facilities Council, Accelerator Science and Technology Centre, Daresbury, United Kingdom
| | - A Subiel
- National Physical Laboratory, Medical Radiation Science Group, Teddington, United Kingdom
- University College London, UCL Cancer Institute, London, United Kingdom
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Jang H, Jeung KW, Kang JH, Jo Y, Jeong E, Lee N, Kim J, Park Y. THE INITIAL ION SHIFT INDEX AS A PROGNOSTIC INDICATOR TO PREDICT PATIENT SURVIVAL IN TRAUMATIC DAMAGE CONTROL LAPAROTOMY PATIENTS. Shock 2023; 59:34-40. [PMID: 36703276 DOI: 10.1097/shk.0000000000002040] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
ABSTRACT Objective: The ion shift index (ISI), which considers extracellular fluid ions such as phosphate, calcium, and magnesium, represents the ion shift following ischemia; concentrations of these ions are maintained within narrow normal ranges by adenosine triphosphate-dependent homeostasis. The ISI is defined as follows: {potassium (mmol/L-1) + phosphate (mmol/L-1) + Mg (mmol/L-1)}/calcium (mmol/L-1). This study investigated the possibility of predicting the 30-day survival rate of patients who underwent traumatic damage control laparotomy by comparing ISI and other laboratory findings, as well as the initial Trauma and Injury Severity Score (TRISS) and shock indices. Methods: Among the 134 patients who underwent damage control surgery between November 2012 and December 2021, 115 patients were enrolled in this study. Data regarding injury mechanism, age, sex, laboratory findings, vital signs, Glasgow Coma Scale score, Injury Severity Score, Abbreviated Injury Scale score, blood component transfusion, type of surgery, postoperative laboratory outcomes, morbidity, mortality rates, fluids administered, and volume of transfusions were collected and analyzed. Results: In univariate analysis, the odds ratio of the initial ISI was 2.875 (95% confidence interval, 1.52-5.43; P = 0.04), which showed a higher correlation with mortality compared with other indices. The receiver operating characteristic (ROC) curve and area under the ROC curve (AUC) were derived from different multivariable logistic regression models. The initial ISI had high sensitivity and specificity in predicting patient mortality (AUC, 0.7378). In addition, in the model combining the initial ISI, crystalloids, and TRISS, the AUC showed a high value (AUC, 0.8227). Conclusion: The ISI evaluated using electrolytes immediately after admission in patients undergoing traumatic damage control surgery may be a predictor of patient mortality.
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Affiliation(s)
- Hyunseok Jang
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Kyung Woon Jeung
- Department of Emergency Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Ji-Hyoun Kang
- Division of Rheumatology, Department of Internal Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Younggoun Jo
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Euisung Jeong
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Naa Lee
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Jungchul Kim
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Yunchul Park
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
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Lee N, Jeong E, Jang H, Park Y, Jo Y, Kim J. Nonoperative management of colon and mesocolon injuries caused by blunt trauma: three case reports. J Trauma Inj 2022. [DOI: 10.20408/jti.2022.0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Guttman-Yassky E, Pavel A, Facheris P, Correa Da Rosa J, Pagan A, Del Duca E, Estrada Y, Bissonnette R, Kumar M, Trujillo D, Rulloda J, Lee N, Ikeda S, Jankicevic J, Wustrow D, Brockstedt D, Ho W, Cheng L, Kassner P. 822 RPT193, a CCR4 inhibitor, improves the inflammatory skin transcriptomic profile in patients with atopic dermatitis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Alexander M, Harris S, Underhill C, Torres J, Sharma S, Lee N, Wong H, Eek R, Michael M, Tie J, Rogers J, Heriot A, Ball D, MacManus M, Wolfe R, Solomon B, Burbury K. PO-44: Risk assessment model potency to detect patients most likely to benefit from thromboprophylaxis: an application of the TARGET- TP score. Thromb Res 2022. [DOI: 10.1016/s0049-3848(22)00234-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Alexander M, Harris S, Underhill C, Torres J, Sharma S, Lee N, Wong H, Eek R, Michael M, Tie J, Rogers J, Heriot A, Ball D, MacManus M, Wolfe R, Solomon B, Burbury K. OC-15: Targeted thromboprophylaxis in ambulatory patients receiving anticancer therapies for lung or gastrointestinal cancers (TARGET-TP); a randomized trial. Thromb Res 2022. [DOI: 10.1016/s0049-3848(22)00187-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Jeong E, Jo Y, Park Y, Kim J, Jang H, Lee N. Very large haematoma following the nonoperative management of a blunt splenic injury in a patient with preexisting liver cirrhosis: a case report. J Trauma Inj 2022. [DOI: 10.20408/jti.2021.0077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The spleen is the most commonly injured organ after blunt abdominal trauma. Nonoperative management (NOM) is the standard treatment for blunt splenic injuries in haemodynamically stable patients without peritonitis. Complications of NOM include rebleeding, new pseudoaneurysm formation, splenic abscess, and symptomatic splenic infarction. These complications hinder the NOM of patients with blunt splenic injuries. We report a case in which a large haemorrhagic fluid collection that occurred after angio-embolisation was resolved by percutaneous drainage in a patient with liver cirrhosis who experienced a blunt spleen injury.
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14
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Jeong E, Jang H, Jo Y, Park Y, Lee N, Kim J. Traumatic abdominal wall hernia with hemoperitoneum caused by blunt injury: laparoscopic exploration with mini-laparotomy repair. A case report. J Trauma Inj 2022. [DOI: 10.20408/jti.2021.0062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Traumatic abdominal wall hernia is a very rare clinical entity. Herein, we report the case of a patient who was transferred from a local clinic to the emergency department because of left lower abdominal pain. Initially, an intra-abdominal hematoma was observed on computed tomography and no extravasation was noted. Conservative treatment was initiated, and the patient’s symptoms were slightly relieved. However, though abdominal pain was relieved during the hospital stay, bowel herniation was suspected in the left periumbilical area. Follow-up computed tomography showed traumatic abdominal wall hernia with hemoperitoneum in the abdomen. We performed a laparoscopic exploration of the injury site and hernia lesion. The anterior abdominal wall hernia was successfully closed.
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Shalaby B, Nickerson JH, Dam RF, Lee N. The role of PLiM technologies in CANDU TM ongoing aging management, life extension, and new designs. KERNTECHNIK 2022. [DOI: 10.1515/kern-2002-0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
This paper will discuss AECL’s approach in providing a comprehensive “full knowledge” support to plant ageing and ageing management. This requires the integration of research and development into safety, design, and service areas of the company. The paper will also explore how this integration is being accomplished through the initiatives of the PLiM program. The paper will examine several examples of how AECL is developing its understanding of ageing degradation, the engineered solutions, applying those solutions, improving those solutions, and finally incorporating these solutions into both the PLiM program and into new designs.
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Affiliation(s)
- B. Shalaby
- Atomic Energy of Canada Limited , 2251 Speakman Drive , Mississauga , Ontario, L5K 1B2 , Canada
| | - J. H. Nickerson
- Atomic Energy of Canada Limited , 2251 Speakman Drive , Mississauga , Ontario, L5K 1B2 , Canada
| | - R. F. Dam
- Atomic Energy of Canada Limited , 2251 Speakman Drive , Mississauga , Ontario, L5K 1B2 , Canada
| | - N. Lee
- Atomic Energy of Canada Limited , 2251 Speakman Drive , Mississauga , Ontario, L5K 1B2 , Canada
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16
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Mccallum S, Romano F, Lee N. FLASH Modalities Track (Oral Presentations) CALORIMETRY TECHNIQUES FOR ABSOLUTE DOSIMETRY OF LASER-DRIVEN IONS BEAMS. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01539-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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17
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Douralis A, Bass G, Dumbill A, Flynn S, Lee N, Manning J, Subiel A. ESTABLISHMENT OF A FLASH RADIOTHERAPY FACILITY AT NPL AND DOSIMETRY STUDY. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01627-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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18
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Lee N, Lourenco A, Thomas R, Romano F, Palmans H, Lee E, Mascia A, Amos R, Subiel A. FLASH Modalities Track (Oral Presentations) DEVELOPMENT AND TEST OF A SMALL PORTABLE GRAPHITE CALORIMETER FOR USE IN ULTRA-HIGH DOSE RATE PARTICLE BEAMS. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01482-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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19
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Van Den Elzen P, Sander T, Palmans H, Mcmanus M, Woodall N, Lee N, Jones R, Angal-Kalinin D, Subiel A. ALANINE RESPONSE IN ULTRA-HIGH DOSE-RATE (UHDR) LOW-ENERGY SYNCHROTRON RADIATION. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01618-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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20
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Jayyosi C, Lee N, Madhukaran SP, Nallasamy S, Mahendroo M, Myers K. The swelling behavior of the mouse cervix: Changing kinetics with osmolarity and the role of hyaluronan in pregnancy. Acta Biomater 2021; 135:414-424. [PMID: 34411755 DOI: 10.1016/j.actbio.2021.08.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 11/29/2022]
Abstract
The cervical remodeling process during pregnancy is characterized by progressive compositional and structural changes in the tissues extra-cellular matrix (ECM). Appropriately timed remodeling is critical for healthy gestation and prevention of premature cervical softening leading to preterm birth (PTB). Modification of the ECM glycosaminoglycans (GAGs) content with advancing pregnancy, especially the non-sulfated GAG hyaluronan (HA), is a fundamental change associated with cervical remodeling. While GAGs have numerous physiological roles, the mechanical consequence of evolving GAG content on cervical structure-function behavior remains an open question. Additionally, an understanding of cervical swelling properties, postulated to be regulated in part by GAGs, is required for the appropriate definition of a reference configuration for mechanical tests and to enhance biological understanding. To investigate cervical swelling, osmotic loading tests are conducted on isolated wild type mouse cervices throughout pregnancy. These tests are performed in various osmolarity solutions to assess the influence of the media on swelling kinetics. A genetically altered strain of mice with depletion of cervical HA is also tested to elucidate the contribution of HA to tissue swelling. Results show ex vivo cervical swelling is significant with volume changes ranging from 20 to 100% after 3h of free swelling. The swelling kinetics depend highly on osmolarity of the media and is altered with advancing pregnancy. The contribution of HA to swelling is only significant in hypo-osmotic solution when HA cervical content is high at the end of pregnancy. In summary, it is critical to account for swelling deformation mechanisms after excision in mechanical experiments. STATEMENT OF SIGNIFICANCE: The cervical extracellular matrix (ECM) undergoes drastic changes to fulfill the functional change of the cervix during pregnancy. Inappropriate timing for this transformation can result in preterm birth, a severe clinical challenge. One of the fundamental changes of the cervical ECM is the significant modification of the glycosaminoglycan content, especially hyaluronan (HA), which is thought to contribute significantly to the swelling and mechanical properties of the cervix. This study aims to measure the swelling kinetics of cervical tissue during pregnancy and to investigate the role of HA in these swelling tendencies. Results show the significant swelling of cervical tissue, which evolves as pregnancy progresses, highlighting a key material property feature of the remodeled cervix. Using a mouse strain with a cervical HA depletion, this work shows HA contributes to the swelling trends of late-term cervical tissue, in a hypo-osmotic solution.
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Affiliation(s)
- C Jayyosi
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - N Lee
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - S P Madhukaran
- Department of Obstetrics and Gynecology and Cecil H. and Ida Green Center for Reproductive Biological Science, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - S Nallasamy
- Department of Obstetrics and Gynecology and Cecil H. and Ida Green Center for Reproductive Biological Science, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - M Mahendroo
- Department of Obstetrics and Gynecology and Cecil H. and Ida Green Center for Reproductive Biological Science, The University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA
| | - K Myers
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA.
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21
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Jang H, Park CH, Park Y, Jeong E, Lee N, Kim J, Jo Y. Spontaneous resolution of gallbladder hematoma in blunt traumatic injury: A case report. World J Clin Cases 2021; 9:8518-8523. [PMID: 34754862 PMCID: PMC8554416 DOI: 10.12998/wjcc.v9.i28.8518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/12/2021] [Accepted: 08/05/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND We report a case of intragallbladder hematoma and biliary tract obstruction caused by blunt gallbladder injury. We report that the patient was safely treated by conservative treatment after the obstruction was resolved by endoscopic retrograde cholangiopancreatography (ERCP).
CASE SUMMARY A 67-year-old man was admitted via the emergency department due to complaints of right-sided abdominal pain that started 2 d prior. Four days prior to presentation, the patient had slipped, fallen and struck his abdomen on a motorcycle handle. His initial vital signs were stable. On physical examination, he showed right upper quadrant pain and Murphy’s sign, with decreased bowel sounds. Additionally, he had had a poor appetite for 4 d. He had been on aspirin for 2 years due to underlying hypertension. Initial simple radiography revealed a slight ileus. The laboratory findings were as follows: white blood cell count, 15.5 × 103/µL (normal range 4.8 × 103–10.8 × 103); hemoglobin, 9.4 g/dL; aspartate aminotransferase/alanine transferase, 423/348 U/L; total bilirubin/direct bilirubin, 4.45/3.26 mg/dL; -GTP , 639 U/L (normal range 5–61 U/L); and C-reactive protein, 12.32 mg/dL (0–0.3). Abdominal computed tomography showed a distended gallbladder with edematous wall change and a 55 mm × 40 mm hematoma. Dilatation was observed in both the intrahepatic and common bile duct areas. Antibiotic treatment was initiated, and ERCP was performed, with hemobilia found during treatment. After cannulation, the patient’s symptoms were relieved, and after conservative management, the patient was discharged with no further complications. After 1-month follow-up, the gallbladder hematoma was completely resolved.
CONCLUSION In the case of traumatic injury to the gallbladder, conservative treatment is feasible even in the presence of hematoma.
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Affiliation(s)
- Hyunseok Jang
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Dong-gu 61469, Gwangju, South Korea
| | - Chang-Hwan Park
- Department of Internal Medicine, Chonnam National University Medical School and Hospital, Dong-gu 61469, Gwangju, South Korea
| | - Yunchul Park
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Dong-gu 61469, Gwangju, South Korea
| | - Euisung Jeong
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Dong-gu 61469, Gwangju, South Korea
| | - Naa Lee
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Dong-gu 61469, Gwangju, South Korea
| | - Jungchul Kim
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Dong-gu 61469, Gwangju, South Korea
| | - Younggoun Jo
- Division of Trauma, Department of Surgery, Chonnam National University Medical School and Hospital, Dong-gu 61469, Gwangju, South Korea
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22
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Lui G, Wong CK, Chan M, Chong KC, Wong R, Chu I, Zhang M, Li T, Hui D, Lee N, Chan P. Host inflammatory response is the major marker of severe respiratory syncytial virus infection in older adults. J Infect 2021; 83:686-692. [PMID: 34614399 DOI: 10.1016/j.jinf.2021.09.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 12/26/2022]
Abstract
OBJECTIVES We aim to study the viral kinetics and host inflammatory response of RSV infection in older adults, and their correlation with disease severity. METHODS We performed a prospective observational study in adults with RSV infection. We serially collected nasal-throat swabs for quantification of RSV-A and RSV-B viral load, and peripheral blood samples for measurement of cytokine/chemokine concentrations. The study endpoints were (i) requiring supplemental oxygen therapy, and (ii) non-invasive ventilation, intensive care, or died within 30 days of admission. We performed multivariable logistic regression models to identify independent variables for severe disease. RESULTS We enrolled 71 hospitalized patients and 10 outpatients treated for RSV infection (median age 75 years, 51% male, and 74% with comorbidities). Among hospitalized patients, 61% required supplemental oxygen therapy, and 18% had severe disease requiring non-invasive ventilation or intensive care, or died within 30 days. Inflammatory cytokine/chemokines IL-6, CXCL8/IL-8, CXCL9/MIG and CXCL10/IP-10 increased significantly during the acute phase of illness. IL-6 concentration was independently associated with severe disease after adjusting for confounding factors. RSV viral load was not associated with disease severity throughout the course of illness. CONCLUSION Host inflammatory response is a major marker of severe disease in older adults with RSV infection.
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Affiliation(s)
- G Lui
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region; Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region
| | - C K Wong
- Department of Chemical Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region
| | - M Chan
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region; Department of Microbiology, Prince of Wales Hospital, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region
| | - K C Chong
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region; Centre for Health System and Policy Research, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region
| | - R Wong
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region
| | - I Chu
- Department of Chemical Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region
| | - M Zhang
- Department of Microbiology, Prince of Wales Hospital, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region
| | - T Li
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region
| | - Dsc Hui
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region; Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region
| | - N Lee
- Institute for Pandemics, Dalla Lana School of Public Health, University of Toronto, Canada
| | - Pks Chan
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region; Department of Microbiology, Prince of Wales Hospital, The Chinese University of Hong Kong, China Hong Kong Special Administrative Region.
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23
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Vinod S, Lee N, Shafiq J, Field M, Fiddler C, Varadarajan S, Gandhidasan S, Hau E. PO-1200 Development and validation of two Australian models to predict 2-year survival in stage I-III NSCLC. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07651-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Ghumra W, Lee N, Whitehouse H, Bhutani R, Lagos D, Layton AM. MicroRNAs as biomarkers of atrophic scarring in acne: a cross-sectional analysis of 41 patients. Clin Exp Dermatol 2021; 46:1495-1503. [PMID: 34101224 DOI: 10.1111/ced.14792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Acne is the commonest inflammatory dermatosis seen worldwide. Atrophic acne scarring is a frequent complication, which can arise from acne of any severity. Micro (mi)RNAs are noncoding RNA molecules of 19-25 nucleotides that function as post-transcriptomic mediators of gene expression. They have demonstrated differential expression in various pathologies, such as eczema and psoriasis, allowing for a unique miRNA 'signature' profile to be established for different disease states. AIM To establish a miRNA signature for acne, and acne-associated atrophic scarring and to identify if a pattern of circulating miRNA is evident in patients who are prone to scarring. METHODS In total, 41 participants were consecutively recruited to this study. Circulating miRNA was quantified from plasma samples in all 41 patients, while in 8 patients, and in a further validation cohort of 9 patients, whole miRNAome was undertaken from tissue specimens, which included lesional, normal and where present, scarred skin. RESULTS Three miRNAs, miR-223, miR-21 and miR-150, were statistically significantly overexpressed in acne lesions, and notably, in clinically uninvolved skin in participants prone to scarring. In this subgroup, we also found statistically significantly elevated levels of circulating miRNA-21 and miRNA-150. CONCLUSION The presence of elevated levels of these specific miRNAs in the serum of patients with acne raises the potential of a blood test to identify those at risk of scarring, allowing for earlier intervention with effective therapy.
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Affiliation(s)
- W Ghumra
- Department of Dermatology, Harrogate District Hospital, Harrogate District and NHS Foundation Trust, Harrogate, Yorkshire, UK
| | - N Lee
- Department of Dermatology, Harrogate District Hospital, Harrogate District and NHS Foundation Trust, Harrogate, Yorkshire, UK
| | - H Whitehouse
- Department of Dermatology, Harrogate District Hospital, Harrogate District and NHS Foundation Trust, Harrogate, Yorkshire, UK
| | - R Bhutani
- Department of Dermatology, Harrogate District Hospital, Harrogate District and NHS Foundation Trust, Harrogate, Yorkshire, UK
| | - D Lagos
- Hull York Medical School and York Biomedical Research Institute, University of York, York, UK
| | - A M Layton
- Department of Dermatology, Harrogate District Hospital, Harrogate District and NHS Foundation Trust, Harrogate, Yorkshire, UK
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Han D, Shin D, Kang M, Choi S, Lee N, Cho J. The change of serum serotonin levels between acute coronary syndrome and chronic stable angina undergoing percutaneous coronary intervention. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Activated platelets release serotonin (5-hydroxytryptamine, 5HT) causing vasoconstriction and aggregation of platelets in patients with acute coronary syndrome (ACS). It can lead to undergo percutaneous coronary intervention (PCI). We investigated the serial changes of serotonin level in patients with ACS and chronic stable angina (CSA) treated with PCI.
Methods
From July 2009 to April 2010, 123 consecutive patients who have undergone PCI for either ACS (n=63) or CSA (n=60) were enrolled. After the loading dose of aspirin 300mg and clopidogrel 600mg before PCI, maintenance once daily dose of 100mg and 75mg have been given from the day after PCI in all patients. Serum serotonin level (SERO) were serially measured at baseline, pre-, post-PCI, 90 min, 6 hours, 12 hours, 24 hours and 48 hours to compare between ACS and CSA groups. All demographic, biochemical variables, and clinical events were also collected for comparison in each group.
Results
SERO at post-PCI (55.2±120.0 vs 20.1±24.0, p=0.03) and peak level (94.0±170.9 vs 38.8±72.3, p=0.02) were significantly higher in ACS group. SERO after 90 min (34.4±66.1 vs 28.7±38.2, p=0.8), 6 hours (23.9±38.3 vs 10.1±10.0, p=0.34), 24 hours (55.8±108.5 vs 37.2±88.2, p=0.39) and 48 hours (43.5±122.9 vs 25.2±65.5, p=0.53) tended to be higher in ACS group than CSA group without statistical significance. SERO rebounded at 24 hours post-PCI and dropped at 48 hours.
Conclusions
SERO was more elevated in patients with ACS than those with CSA undergoing PCI, suggesting the need for more potent and sustained platelet inhibition particularly in ACS patients. SERO might be considered as a substitute marker of platelet activation. Triple antiplatelet therapy including selective serotonin receptor antagonist on top of aspirin and clopidogrel could be as an option for ACS patients undergoing PCI
Funding Acknowledgement
Type of funding source: Other. Main funding source(s): Hallym University Research Fund 2017 (HURF-2017-84)
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Affiliation(s)
- D Han
- Kangnam Sacred Heart Hospital, Seoul, Korea (Republic of)
| | - D.G Shin
- Kangnam Sacred Heart Hospital, Seoul, Korea (Republic of)
| | - M.K Kang
- Kangnam Sacred Heart Hospital, Seoul, Korea (Republic of)
| | - S Choi
- Kangnam Sacred Heart Hospital, Seoul, Korea (Republic of)
| | - N Lee
- Kangnam Sacred Heart Hospital, Seoul, Korea (Republic of)
| | - J.R Cho
- Kangnam Sacred Heart Hospital, Seoul, Korea (Republic of)
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Fong L, Lee N, Yan A, Ng M. Comparison of prasugrel and ticagrelor for patient with acute coronary syndrome: a systematic review and meta-analysis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Prasugrel and ticagrelor are both effective anti-platelet drugs for patients with acute coronary syndrome. However, there has been limited data on the direct comparison of prasugrel and ticagrelor until the recent ISAR-REACT 5 trial.
Purpose
To compare the efficacy of prasugrel and ticagrelor in patients with acute coronary syndrome with respect to the primary composite endpoint of myocardial infarction (MI), stroke or cardiac cardiovascular death, and secondary endpoints including MI, stroke, cardiovascular death, major bleeding (Bleeding Academic Research Consortium (BARC) type 2 or above), and stent thrombosis within 1 year.
Methods
Meta-analysis was performed on randomised controlled trials (RCT) up to December 2019 that randomised patients with acute coronary syndrome to either prasugrel or ticagrelor. RCTs were identified from Medline, Embase and ClinicalTrials.gov using Cochrane library CENTRAL by 2 independent reviewers with “prasugrel” and “ticagrelor” as search terms. Effect estimates with confidence intervals were generated using the random effects model by extracting outcome data from the RCTs to compare the primary and secondary clinical outcomes. Cochrane risk-of-bias tool for randomised trials (Ver 2.0) was used for assessment of all eligible RCTs.
Results
411 reports were screened, and we identified 11 eligible RCTs with 6098 patients randomised to prasugrel (n=3050) or ticagrelor (n=3048). The included trials had a follow up period ranging from 1 day to 1 year. 330 events on the prasugrel arm and 408 events on the ticagrelor arm were recorded. There were some concerns over the integrity of allocation concealment over 7 trials otherwise risk of other bias was minimal. Patients had a mean age of 61±4 (76% male; 50% with ST elevation MI; 35% with non-ST elevation MI; 15% with unstable angina; 25% with diabetes mellitus; 64% with hypertension; 51% with hyperlipidaemia; 42% smokers). There was no significant difference in risk between the prasugrel group and the ticagrelor group on the primary composite endpoint (Figure 1) (Risk Ratio (RR)=1.17; 95% CI=0.97–1.41; p=0.10, I2=0%). There was no significant difference between the use of prasugrel and ticagrelor with respect to MI (RR=1.24; 95% CI=0.81–1.90; p=0.31); stroke (RR=1.05; 95% CI=0.66–1.67; p=0.84); cardiovascular death (RR=1.01; 95% CI=0.75–1.36; p=0.95); BARC type 2 or above bleeding (RR=1.17; 95% CI =0.90–1.54; p=0.24); stent thrombosis (RR=1.58; 95% CI =0.90–2.76; p=0.11).
Conclusion
Compared with ticagrelor, prasugrel did not reduce the primary composite endpoint of MI, stroke and cardiovascular death within 1 year. There was also no significant difference in the risk of MI, stroke, cardiovascular death, major bleeding and stent thrombosis respectively.
Figure 1. Primary Objective
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- L.C.W Fong
- The University of Hong Kong, Hong Kong, Hong Kong
| | - N Lee
- The University of Hong Kong, Hong Kong, Hong Kong
| | - A.T Yan
- St. Michael's Hospital, Department of Medicine, University of Toronto Division of Cardiology, Toronto, Canada
| | - M.Y Ng
- The University of Hong Kong, Department of Diagnostic Radiology, Hong Kong, Hong Kong
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Sanduleanu S, Tamanupadhaya@gmail.com T, Klaassen R, Woodruff H, Hatt M, Kaanders J, Vrieze O, Laarhoven H, Subramiam R, Huang S, Bratman S, Dubois L, Miclea R, Di Perri D, Geets X, Crispin-Ortuzar M, Aptea A, Hun Oh J, Lee N, Humm J, Schoder H, Ruysscher D, Hoebers F, Lambin P. PO-1583: Non-invasive radiomic imaging prediction of tumour hypoxia: biomarker for FLASH irradiation? Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01601-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Oh J, Katsoulakis E, Riaz N, Yu Y, Apte A, Leeman J, Katabi N, Morris L, Chan T, Hatzoglou V, Lee N, Deasy J. PO-1550: Radiomics characteristics correlate with immune activation and HPV status in head and neck cancer. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01568-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kang J, Tchekmedyian V, Fan M, Wang H, Kitpanit S, Mohamed N, Rybkin A, Lee A, Chen L, Yu Y, Riaz N, McBride S, Tsai C, Ho A, Dunn L, Fetten J, Pfister D, Zhang Z, Lee N, Sherman E. Split High-Dose Cisplatin: An Alternate High-Dose Cisplatin Administration Schedule for Definitive Chemoradiation in Oropharyngeal Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lee N, Lee K, Kim K, Hong J, Yim G, Seong S, Lee B, Lee J, Lim S, Ouh Y, Kim Y. Risk of occult atypical hyperplasia or cancer in women with non-atypical endometrial hyperplasia. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lee N, Lee SY, Kim CH, Kwak HD, Ju JK, Kim HR. The Relationship Between High-Output Stomas, Postoperative Ileus, and Readmission After Rectal Cancer Surgery With Diverting Ileostomy. Ann Coloproctol 2020; 37:44-50. [PMID: 32972101 PMCID: PMC7989563 DOI: 10.3393/ac.2020.08.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/03/2020] [Indexed: 02/07/2023] Open
Abstract
Purpose This study aimed to evaluate the relationship between high-output stomas (HOSs), postoperative ileus (POI), and readmission after rectal cancer surgery with diverting ileostomy. Methods We included 302 patients with rectal cancer who underwent restorative resection with diverting ileostomy between January 2011 and December 2015. HOSs were defined as stomas with ≥ 2,000 mL/day output. We analyzed predictive factors for readmission of these patients. Results Forty-eight patients (15.9%) had HOSs during the hospital stay, and 41 patients (13.6%) experienced POI. HOSs were strongly associated with POI (45.8% vs. 7.5%, P < 0.001). The all-cause readmission rate was 16.9%, with 19 (6.3%) and 20 (6.6%) experiencing ileus and acute kidney injury, respectively. HOSs (27.1% vs. 15.0%, P = 0.040) and POI (34.1% vs. 14.2%, P = 0.002) were associated with all-cause readmission, and POI was associated with readmission with ileus (17.1% vs. 4.6%, P = 0.007). POI was an independent risk factor for all-cause readmission (adjusted odds ratio [OR], 2.640; 95% confidence interval [CI], 1.162 to 6.001; P = 0.020) and readmission with ileus (adjusted OR = 3.869; 95% CI 1.387 to 10.792; P = 0.010). Conclusion POI was associated with readmission, particularly for subsequent ileus, in patients with diverting ileostomy. We should make efforts to reduce POI, such as strong control of HOSs, to prevent readmission.
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Affiliation(s)
- Naa Lee
- Department of Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
| | - Soo Young Lee
- Department of Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
| | - Chang Hyun Kim
- Department of Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
| | - Han Deok Kwak
- Department of Surgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Jae Kyun Ju
- Department of Surgery, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Hyeong Rok Kim
- Department of Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
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Chung C, WANG Y, Lee N. PSU2 Clinical Outcomes and Economics Associated with Surgical Mitral Valve Replacement in Taiwan. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chung C, WANG Y, Lee N. PSU3 Clinical Outcomes and Economics Associated with Surgical Aortic Valve Replacement in Taiwan. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sherman E, Harris J, Bible K, Xia P, Ghossein R, Chung C, Riaz N, Gunn B, Foote R, Yom S, Wong S, Koyfman S, Dzeda M, Clump D, Khan S, Chakravarti A, Redmond K, Torres-Saavedra P, Le QT, Lee N. 1914MO Randomized phase II study of radiation therapy and paclitaxel with pazopanib or placebo: NRG-RTOG 0912. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1402] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Kim B, Lee N, Lee C, Lee Y, Lee S, Hwang H, Kim E, Choi E. 213 Increased 11β-hydroxysteroid dehydrogenase type 1 contributes to the impaired barrier in aged skin. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Cheng L, Jorapur A, Jacobson S, Talay O, Miakicheva S, Trujillo D, Lee N, Jankicevic J, Wustrow D, Kassner P, Ho W, Brockstedt D. 561 Development and first-in-human characterization of a potent oral CCR4 antagonist for the treatment of atopic dermatitis. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- S Ryan
- Companion Animal Surgery, Singapore, 329586, Republic of Singapore
| | - H Bacon
- The Royal (Dick) School of Veterinary Studies, The University of Edinburgh Easter Bush Veterinary Centre, Roslin, Midlothian, EH25 9RG, UK
| | - N Endenburg
- Department of Animals in Science and Society Faculty of Veterinary Sciences, Utrecht University, Utrecht, The Netherlands
| | - S Hazel
- School of Animal & Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia, 5005, Australia
| | - R Jouppi
- Wild at Heart Wildlife Center, Lively, Ontario, P3Y 1C3, Canada
| | - N Lee
- Asia Animal Happiness, Selangor, 68000, Malaysia
| | - K Seksel
- Sydney Animal Behaviour Service, Seaforth, New South Wales, 2092, Australia
| | - G Takashima
- Animal Care Group of Lake Oswego, Lake Oswego, Oregon, 97035, USA
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Edwards T, White LV, Lee N, Castro MC, Saludar NR, Faguer BN, Fuente ND, Mayoga F, Ariyoshi K, Garfin AMCG, Solon JA, Cox SE. Effects of comorbidities on quality of life in Filipino people with tuberculosis. Int J Tuberc Lung Dis 2020; 24:712-719. [PMID: 32718405 DOI: 10.5588/ijtld.19.0734] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: We investigated health-related quality of life (HrQoL) in Filipino people undergoing TB treatment, and whether HrQoL was negatively impacted by comorbidity with undernutrition, diabetes (DM) and anaemia.METHODS: Adult participants were enrolled in public facilities in Metro Manila (three sites) and Negros Occidental (two sites). Multivariate linear regression was used to model the four correlated domain scores from a WHOQOL-BREF questionnaire (physical, psychological, social, environmental). A forward-stepwise approach was used to select a final multivariable model with inclusion based on global tests of significance at P < 0.1.RESULTS: In 446 people on drug-susceptible TB treatment, DM and moderate/severe anaemia were not associated with HrQoL. After adjustment for age, sex, education, food insecurity, treatment adherence, inflammation, Category I or II TB treatment, treatment phase, current side effects and inhibited ability to work, moderate/severe undernutrition (body mass index < 17 kg/m²) was associated with lower HrQoL (P = 0.003) with reduced psychological (coefficient: -1.02, 95% CI -1.54 to -0.51), physical (-0.62, 95% CI -1.14 to -0.09) and environmental domain scores (-0.45, 95% CI -0.88 to -0.01). In 225 patients with known HIV status in Metro Manila, HIV was associated with modestly reduced HrQoL (P = 0.014).CONCLUSION: Nutritional status and food insecurity represent modifiable risk factors for poor HrQoL that may be alleviated through interventions.
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Affiliation(s)
- T Edwards
- Tropical Epidemiology Group, London School of Hygiene & Tropical Medicine (LSHTM), London, UK, School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | - L V White
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | - N Lee
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan, Royal Free Hospital, London, UK
| | | | | | - B N Faguer
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | - N D Fuente
- Valladolid Health Center, Valladolid, Negros Occidental
| | - F Mayoga
- Bago City Health Center, Bago City, Negros Occidental, the Philippines
| | - K Ariyoshi
- Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - A M C G Garfin
- National TB Control Programme, Department of Health, Manila, the Philippines
| | - J A Solon
- Nutrition Center Philippines, Manila
| | - S E Cox
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan, Faculty of Population Health, LSHTM, London, UK
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Lee K, Lee N, Shin E, Lee N, Chang J, Na D, Lee J. Enhancing the therapeutic potential of mesenchymal stem cell-based therapy via CRISPR/Cas9-based genome editing. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Lee N, Harris J, Pfister D, Kim J, Garden A, Mechalakos J, Chan A, Hu K, Yom S, Glisson B, Shenouda G, Ad VB, Waldron J, Harari P, Le Q. Long-Term Update of a Phase II Study of Concurrent Chemoradiotherapy Using Radiation + Bevacizumab (BV) For Locally or Regionally Advanced Nasopharyngeal Cancer (NPC): RTOG 0615. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Tsai C, McBride S, Riaz N, Kang J, Yu Y, Chen L, Gelblum D, Wong R, Boyle J, Dunn L, Sherman E, Pfister D, Lee N. Radical Reduction of Radiation Therapy Dose Prescription for Elective Treatment Areas in Human Papillomavirus (HPV) - Associated Oropharyngeal Carcinoma (OPC). Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Verma N, Patel S, Osborn V, McBride S, Riaz N, Lee A, Katabi N, Sherman E, Lee N, Tsai C. Prognostic significance of Human Papillomavirus and Epstein-Bar Virus in Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Riaz N, Sherman E, Pei X, Schoder H, Paudyal R, Katabi N, Ma D, Tsai C, McBride S, Morris L, Boyle J, Singh B, Foote R, Ho A, Wong R, Humm J, Dave A, Pfister D, Reis-Filho J, Lee N. Genetic and micro-environmental factors influencing response to definitive 30Gy chemo-radiotherapy (chemoRT) in HPV Positive Oropharyngeal Cancer (OPC). Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zakeri K, Wang H, Kang J, Lee A, Gelblum D, Sherman E, Dunn L, Boyle J, Wong R, Chen L, Yu Y, Tsai C, McBride S, Riaz N, Lee N. Outcomes of Major Salivary Gland Tumors Treated with Proton Beam Radiation Therapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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45
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Fan D, Fan M, Wang H, Lee A, Yu Y, Chen L, Tsai C, McBride S, Riaz N, Bernstein M, Mueller B, Gelblum D, Fetten J, Dunn L, Michel L, Pfister D, Ho A, Boyle J, Cohen M, Roman B, Cracchiolo J, Morris L, Ganly I, Singh B, Shaha A, Patel S, Shah J, Wong R, Sherman E, Lee N, Kang J. Last-line Local Treatment with the Quad Shot Regimen for Previously Irradiated Head and Neck Cancers. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kitpanit S, Lee A, Fan D, Fan M, Wang H, Mohamed N, Spielsinger D, Gelblum D, Sherman E, Dunn L, Boyle J, Wong R, Cohen M, Kang J, Tsai C, McBride S, Zakeri K, Chen L, Yu Y, Riaz N, Lee N. Clinical Outcomes and Toxicities in Oropharyngeal Cancer (OPC) Patients Treated with Proton Therapy: A Single Institutional Experience. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kang J, Cartano O, Fan D, Fan M, Wang H, Kitpanit S, Lee A, Gelblum D, Sherman E, Dunn L, Cohen M, Boyle J, Wong R, Tsai C, McBride S, Zakeri K, Chen L, Yu Y, Riaz N, Lee N. Changing the Paradigm in HPV-Negative Oropharyngeal Cancer: Deintensification Based on Low Risk of Locoregional Relapse. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Fan M, Lee N, Lee A, Kang J, Fan D, Tsai C, Chen L. Improved Outcomes by proton beam radiation for nasal cavity and paranasal sinus malignances. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lee N, Seo J, Park H, Yoon J. Diagnosis and successful percutaneous ultrasound-guided aspiration treatment of multiple bilomas in a dog. J Small Anim Pract 2020; 61:321-322. [PMID: 32166748 DOI: 10.1111/jsap.13133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 01/13/2020] [Accepted: 01/15/2020] [Indexed: 11/30/2022]
Affiliation(s)
- N Lee
- College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,Time Animal Medical Center, 57, Dunsan-ro, Seo-gu, Daejeon, 35233, Republic of Korea
| | - J Seo
- Time Animal Medical Center, 57, Dunsan-ro, Seo-gu, Daejeon, 35233, Republic of Korea
| | - H Park
- Time Animal Medical Center, 57, Dunsan-ro, Seo-gu, Daejeon, 35233, Republic of Korea
| | - J Yoon
- College of Veterinary Medicine and the Research Institute for Veterinary Science, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
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Chen YP, Wang YQ, Lv JW, Li YQ, Chua MLK, Le QT, Lee N, Colevas AD, Seiwert T, Hayes DN, Riaz N, Vermorken JB, O'Sullivan B, He QM, Yang XJ, Tang LL, Mao YP, Sun Y, Liu N, Ma J. Identification and validation of novel microenvironment-based immune molecular subgroups of head and neck squamous cell carcinoma: implications for immunotherapy. Ann Oncol 2020; 30:68-75. [PMID: 30407504 DOI: 10.1093/annonc/mdy470] [Citation(s) in RCA: 161] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Background Targeting the immune checkpoint pathway has demonstrated antitumor cytotoxicity in treatment-refractory head and neck squamous cell carcinoma (HNSC). To understand the molecular mechanisms underpinning its antitumor response, we characterized the immune landscape of HNSC by their tumor and stromal compartments to identify novel immune molecular subgroups. Patients and methods A training cohort of 522 HNSC samples from the Cancer Genome Atlas profiled by RNA sequencing was analyzed. We separated gene expression patterns from tumor, stromal, and immune cell gene using a non-negative matrix factorization algorithm. We correlated the expression patterns with a set of immune-related gene signatures, potential immune biomarkers, and clinicopathological features. Six independent datasets containing 838 HNSC samples were used for validation. Results Approximately 40% of HNSCs in the cohort (211/522) were identified to show enriched inflammatory response, enhanced cytolytic activity, and active interferon-γ signaling (all, P < 0.001). We named this new molecular class of tumors the Immune Class. Then we found it contained two distinct microenvironment-based subtypes, characterized by markers of active or exhausted immune response. The Exhausted Immune Class was characterized by enrichment of activated stroma and anti-inflammatory M2 macrophage signatures, WNT/transforming growth factor-β signaling pathway activation and poor survival (all, P < 0.05). An enriched proinflammatory M1 macrophage signature, enhanced cytolytic activity, abundant tumor-infiltrating lymphocytes, high human papillomavirus (HPV) infection, and favorable prognosis were associated with Active Immune Class (all, P < 0.05). The robustness of these immune molecular subgroups was verified in the validation cohorts, and Active Immune Class showed potential response to programmed cell death-1 blockade (P = 0.01). Conclusions This study revealed a novel Immune Class in HNSC; two subclasses characterized by active or exhausted immune responses were also identified. These findings provide new insights into tailoring immunotherapeutic strategies for different HNSC subgroups.
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Affiliation(s)
- Y-P Chen
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Y-Q Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - J-W Lv
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Y-Q Li
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - M L K Chua
- Division of Radiation Oncology, National Cancer Centre, Singapore; Oncology Academic Clinical Programme Duke-NUS Medical School, Singapore
| | - Q-T Le
- Department of Radiation Oncology, Stanford University, Stanford
| | - N Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York
| | | | - T Seiwert
- Department of Medicine, The University of Chicago, Chicago
| | - D N Hayes
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, USA
| | - N Riaz
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York
| | - J B Vermorken
- Department of Medical Oncology, Antwerp University Hospital, Edegem, Belgium
| | - B O'Sullivan
- Ontario Cancer Institute, University Health Network, Toronto, Canada
| | - Q-M He
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - X-J Yang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - L-L Tang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - Y-P Mao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China; Department of Radiation Oncology, University of Michigan, Ann Arbor
| | - Y Sun
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China
| | - N Liu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China; Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
| | - J Ma
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou; State Key Laboratory of Oncology in South China, Guangzhou; Collaborative Innovation Center for Cancer Medicine, Guangzhou; Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, People's Republic of China.
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