Journal of Yeungnam Medical Science

Case report

Delayed treatment-free response after romiplostim discontinuation in pediatric chronic immune thrombocytopenia: Hyun Ji Lim, Young Tae Lim, Jeong Ok Hah, Jae Min Lee; Yeungnam Univ J Med. 2021;38(2):165-168. Published online August 7, 2020; DOI: https://doi.org/10.12701/yujm.2020.00493

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We report the case of a 16-month-old patient with chronic immune thrombocytopenia (ITP) patient who experienced delayed treatment-free response (TFR) after romiplostim treatment. He received intravenous immunoglobulin every month to maintain a platelet count above 20,000/μL for 2 years. Thereafter, he received rituximab and cyclosporine as second-line therapy, with no response, followed by romiplostim. After 4 weeks of treatment, the platelet count was maintained above 50,000/μL. Following 7 months of treatment, he discontinued romiplostim, and the platelet count decreased. His platelet counts remained above 50,000/μL, without any bleeding symptoms, 2 years after romiplostim discontinuation. This is the first report of TFR after romiplostim treatment in pediatric chronic ITP.

Citations

Citations to this article as recorded by

A cost–utility analysis of thrombopoietin receptor agonists for treating pediatric immune thrombocytopenia purpura after failure of first‐line therapies
Huimin Du, Jiamin Wang, Joel Livingston, Ziyad Alrajhi, Melanie Kirby‐Allen, Brian Chan, Rebecca Hancock‐Howard, Peter C. Coyte
Pediatric Blood & Cancer.2023;[Epub] CrossRef
Generic romiplostim for children with persistent or chronic immune thrombocytopenia: Experience from a tertiary care centre in North India
Chandana Mareddy, Manas Kalra, Anupam Sachdeva
British Journal of Haematology.2022; 197(5): 618. CrossRef
Tapering of the thrombopoietin receptor agonist in paediatric patients with chronic immune thrombocytopenia: Is it possible?
María Solsona, Rubén Berrueco, Elena Sebastián, Áurea Cervera, Ana Sastre, Itziar Astigarraga, Bienvenida Argilés, María Ángeles Dasí, José Luís Dapena, Emilio Monteagudo
British Journal of Clinical Pharmacology.2022; 88(9): 4220. CrossRef

Focused Review article

Therapeutic potential of targeting kinase inhibition in patients with idiopathic pulmonary fibrosis: Suji Kim, Jae Hyang Lim, Chang-Hoon Woo; Yeungnam Univ J Med. 2020;37(4):269-276. Published online July 22, 2020; DOI: https://doi.org/10.12701/yujm.2020.00458

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Abstract PDF

Fibrosis is characterized by excessive accumulation of extracellular matrix components. The fibrotic process ultimately leads to organ dysfunction and failure in chronic inflammatory and metabolic diseases such as pulmonary fibrosis, advanced kidney disease, and liver cirrhosis. Idiopathic pulmonary fibrosis (IPF) is a common form of progressive and chronic interstitial lung disease of unknown etiology. Pathophysiologically, the parenchyma of the lung alveoli, interstitium, and capillary endothelium becomes scarred and stiff, which makes breathing difficult because the lungs have to work harder to transfer oxygen and carbon dioxide between the alveolar space and bloodstream. The transforming growth factor beta (TGF-) signaling pathway plays an important role in the pathogenesis of pulmonary fibrosis and scarring of the lung tissue. Recent clinical trials focused on the development of pharmacological agents that either directly or indirectly target kinases for the treatment of IPF. Therefore, to develop therapeutic targets for pulmonary fibrosis, it is essential to understand the key factors involved in the pathogenesis of pulmonary fibrosis and the underlying signaling pathway. The objective of this review is to discuss the role of kinase signaling cascades in the regulation of either TGF--dependent or other signaling pathways, including Rho-associated coiled-coil kinase, c-jun N-terminal kinase, extracellular signal-regulated kinase 5, and p90 ribosomal S6 kinase pathways, and potential therapeutic targets in IPF.

Citations

Citations to this article as recorded by

Targeting Growth Factor and Cytokine Pathways to Treat Idiopathic Pulmonary Fibrosis
Hongbo Ma, Shengming Liu, Shanrui Li, Yong Xia
Frontiers in Pharmacology.2022;[Epub] CrossRef
Vitamin D3 alleviates pulmonary fibrosis by regulating the MAPK pathway via targeting PSAT1 expression in vivo and in vitro
Wenxiang Zhu, Qi Ding, Lu Wang, Gonghao Xu, Yirui Diao, Sihao Qu, Sheng Chen, Yuanyuan Shi
International Immunopharmacology.2021; 101: 108212. CrossRef
Advances in the science and treatment of respiratory diseases
Jin Hong Chung
Yeungnam University Journal of Medicine.2020; 37(4): 251. CrossRef
Effects of Pirfenidone and Nintedanib on Markers of Systemic Oxidative Stress and Inflammation in Patients with Idiopathic Pulmonary Fibrosis: A Preliminary Report
Alessandro G. Fois, Elisabetta Sotgiu, Valentina Scano, Silvia Negri, Sabrina Mellino, Elisabetta Zinellu, Pietro Pirina, Gianfranco Pintus, Ciriaco Carru, Arduino A. Mangoni, Angelo Zinellu
Antioxidants.2020; 9(11): 1064. CrossRef

Case Report

A Case of Idiopathic Isolated Hypoglossal Nerve Palsy.: Doo Hyun Kim, Se Jin Lee; Yeungnam Univ J Med. 2010;27(1):74-77. Published online June 30, 2010; DOI: https://doi.org/10.12701/yujm.2010.27.1.74

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Abstract PDF

Isolated hypoglossal nerve palsy is a rare clinical condition and it causes deviation of the tongue and dysarthria. A 50-year-old female presented with tongue deviation to the left and mild dysarthria. She had no remarkable past medical history except several recent upper respiratory infections. On examination, the other cranial nerves were intact and she had no focal neurological signs. The findings of MRI and MR angiography were normal. Cerebrospinal fluid analysis revealed only mild elevation of protein. We diagnosed her as suffering with idiopathic isolated hypoglossal nerver palsy and we administered steroid therapy. The dysarthria was improved, but the tongue deviation still remained at 50 days after onset. We report here on a rare case of idiopathic isolated hypoglossal nerve palsy.

Citations

Citations to this article as recorded by

Idiopathic Ninth, Tenth, and Twelfth Cranial Nerve Palsy with Ipsilateral Headache: A Case Report
Seung-Ho Sun
Journal of Pharmacopuncture.2012; 15(4): 66. CrossRef

Original Articles

The Measurement of Size of the Pedicle Using 3 Dimensional Reconstruction Image in Idiopathic Scoliosis.: Jae Hee Heo, Myun Hwan Ahn; Yeungnam Univ J Med. 2004;21(1):40-50. Published online June 30, 2004; DOI: https://doi.org/10.12701/yujm.2004.21.1.40

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Abstract PDF: BACKGROUND
This study was conducted to analyze the height and width of the pedicle of the upper and lower levels on the concave and the convex sides. In addition, we checked for the appropriate pedicle screw size which could be screwed in without complications. MATERIALS AND METHODS: Taking a simple AP radiography in a standing position, 99 vertebrae on the major curve with the possibility of 3-D reconstruction were analyzed after checking the CT in a supine position of 22 idiopathic scoliosis. We measured Cobb's angle from a simple radiograph, and measured the size of the isthmus by the Inner Space 3-D Editor after 3-D reconstruction with the Inner Space 3-D program in the DICOM file transformed from CT image. We then analyzed the size of pedicles of the upper and lower levels on the concave and the convex sides by measuring the height and width of the pedicle. RESULTS: All pedicles on the concave side were smaller than those on the convex side. Their size increased as the measurement moved from the upper to lower vertebra, except for the upper thoracic vertebra. When the width of the pedicle through 3-D reconstruction was compared with the narrowest width of the pedicle measured by using CT, the width of the pedicles through 3-D reconstruction was statistically smaller (P< 0.01). Most of the pedicles were tear-drop or kidney shaped rather than cylindrical. CONCLUSION: These results suggest that the use of the coronal plane through 3-D reconstruction would be necessary for an accurate measurement of the size of the pedicle. It is important to pay careful attention to the screw size and the screwing method considering the pedicle shape through 3-D reconstruction.

Indication of Bone Marrow Aspiration in Acute Idiopathic Thrombocytopenic Purpura in Children.: Won Duck Kim, Jeong Ok Hah; Yeungnam Univ J Med. 2001;18(2):239-245. Published online December 31, 2001; DOI: https://doi.org/10.12701/yujm.2001.18.2.239

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Abstract PDF: BACKGROUND
Acute idiopathic thrombocytopenic purpura(ITP) is one of the common hematologic disorders in children. Bone marrow aspiration(BMA) is often performed in children with acute ITP to rule out leukemia, aplastic anemia or other hematologic diseases. However, whether BMA is needed in children with typical clinical and hematological features of acute ITP have been questioned. This study was performed to examine the proper indication of BMA in acute childhood ITP. MATERIALS AND METHODS: The medical records and BMA reports of children with the provisional diagnosis of acute ITP were reviewed from January 1984 to December 2000. Patients were divided into two groups, one with typical and another with atypical clinical and hematological features of acute ITP. Typical acute ITP group was characterized by the history of previous viral infection, well being appearance, no hepatosplenomegaly, no lymphadenopathy, normal Hb, WBC, neutrophil count and peripheral blood smear except thrombocytopenia. A platelet count of 50x109/L or lower was the cutoff level. RESULTS: Total 120 children with the provisional diagnosis of acute ITP were included. One hundred eighteen of them were confirmed to have acute ITP by BMAs. Of these, 66 had typical and 54 had atypical features. All of typical features and 52 of 54 with atypical features of acute ITP were confirmed to have acute ITP by BMAs. Two patients with atypical features of acute ITP were diagnosed as aplastic anemia and myelodyspalstic syndrome, respectively, by BMAs. CONCLUSION: This study concludes that BMA is not needed for the children with typical features of acute ITP but it is needed for the children with atypical features of acute ITP to rule out other hematologic disorders.

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