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1.
Sensors (Basel) ; 24(4)2024 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-38400443

RESUMO

Fifth Generation (5G) mobile networks introduce the concept of slicing to ensure isolation among the various supported heterogeneous services. The User Equipment (UE) can be connected to multiple slices simultaneously. Additionally, the notion of a Bandwidth Part (BWP) was also instigated to reduce power consumption. A BWP is a small chunk of the bandwidth scanned by the UE to retrieve its service data. Therefore, a UE connected to multiple services can be configured with multiple BWPs each associated with a given service. Such UEs find themselves scanning multiple BWPs, which can be time consuming and highly energy intensive. Hence, it is paramount to study the appropriate choice of the BWP configuration from an energy-efficiency perspective for multi-slice users depending on their battery level. In this paper, two energy-efficient BWP selection solutions are proposed for users connected to multiple slices. The first solution is based on a centralized approach where UEs are stirred optimally to the best BWP configuration, while the second solution relies on a user-centric distributed approach using non-cooperative game theory. The proposed schemes take into account the users' battery level and their sojourn time in the network as well as the scanned BWP size. Both solutions are compared with one another and against the legacy solution. Intensive simulation results demonstrate the efficiency of our proposition in terms of users' energy efficiency and quality of service.

2.
Clin Case Rep ; 10(12): e6807, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36590661

RESUMO

Chronic myelogenous leukemia is a myeloproliferative neoplasm characterized by the BCR-ABL1 fusion gene and the development of the Philadelphia chromosome, which leads to an increase in granulocytes and bone marrow myeloid precursors in the blood, it can lead to many possible complications depending on the disease stage at the time of diagnosis. The Morel-Lavallée lesion (MLL) is a closed traumatic soft-tissue degloving injury, that results from the separation of the hypodermis from the underlying fascia, with resultant hemo-lymphatic fluid collection between the tissue layers. We report a case of a 48-year-old male patient, with no chronic illnesses, who presented with 2 weeks history of posterior chest wall pain and swelling. Initial investigation showed a white blood cell count of 364.4 × 103/µl. Bone marrow pathology report findings were consistent with chronic myeloid leukemia (CML), and the BCR-ABL test came positive. CT chest with contrast showed a large chest wall lesion, suggestive of a Morel-Lavallee lesion. Ultrasound-guided aspiration of the lesion yielded 20 mm of fluid from the thick hematoma. Histopathology of the fluid showed Necrotic debris with mixed inflammation. Patient's condition improved, and he was discharged on Dasatinib with follow-up in hematology and surgery clinics.

3.
IDCases ; 26: e01344, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34804803

RESUMO

Immune thrombocytopenic purpura (ITP) is a blood disorder in which antibodies coating platelets cause platelets destruction in the spleen with resultant low platelets count and an increased tendency for bleeding. Coronavirus disease 2019 (COVID-19) is an illness caused by SARS-COV2; it was first identified in December/2019; though it mainly affects the respiratory system, multisystemic complications are identified. Several ITP cases post mRNA SARS-CoV-2 vaccines were reported, and different pathophysiology theories about the underlying pathophysiology were discussed, but only a few ITP relapse cases have been reported so far. We present a 28-year-old Asian male, a known patient of ITP and in partial remission for eighteen months, who presented to the emergency department with ITP relapse (platelets count of 1 × 10^3 /µL), four days after receiving the second dose of Pfizer SARS-CoV-2 vaccine, which required treatment with intravenous immunoglobulins and dexamethasone. We further discuss the preferred approach in ITP patients who are willing to receive the COVID-19 vaccine.

4.
Case Rep Oncol ; 13(2): 655-658, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32774251

RESUMO

Idiopathic thrombocytopenic purpura (ITP) is a disease in which the immune system attacks platelets and causes decrease in its number exposing the patient to risk of bleeding. It is diagnosed by exclusion. Eltrombopag is a thrombopoietin receptor agonist which is used as second-line treatment for patients with ITP. The usual starting dose is 25 mg daily and maintenance dose is 75 mg daily. Little is known about the dose of eltrombopag in patients with sleeve gastrectomy since reduction in the amount of functioning gastrointestinal tract after gastric bypass surgery leads to decreased time to drug absorption and reduced drug bioavailability. Here we are reporting a 46-year-old female with ITP and sleeve gastrectomy who responded to low-dose eltrombopag 25 mg every other day, which is equivalent to 12.5 mg daily, and maintained adequate platelet counts on this dose.

5.
Am J Case Rep ; 18: 794-798, 2017 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-28706179

RESUMO

BACKGROUND Tyrosine kinase inhibitors (TKIs) are currently an important targeted drug class in the treatment of chronic myeloid leukemia (CML). Imatinib was the first approved TKI for CML in 2001. Nilotinib is a second-generation TKI, approved in 2007; it inhibits BCR-ABL, PDGFR, and c-KIT, and is 30 times more potent than imatinib. Tyrosine kinase enzymes are expressed in multiple tissues and are involved in several signaling pathways; they have been shown to have several off-target side effects. CASE REPORT We report a case of an elderly male with CML and no history of gastrointestinal diseases, treated with nilotinib, and developed recurrent gastric polyps after three years of treatment. We excluded common causes of gastric polyps and therefore considered nilotinib as a probable cause of recurrent gastric polyps. CONCLUSIONS Recurrent gastric polyps could be a potential side effect of nilotinib treatment. Careful long-term monitoring of patients on TKI therapy is necessary and further long-term studies of TKI side effects are needed.


Assuntos
Pólipos/induzido quimicamente , Proteínas Tirosina Quinases/efeitos adversos , Pirimidinas/efeitos adversos , Gastropatias/induzido quimicamente , Humanos , Leucemia Mielogênica Crônica BCR-ABL Positiva/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Recidiva
6.
J Comput Assist Tomogr ; 41(5): 713-718, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28481808

RESUMO

OBJECTIVE: This study aims to investigate the association between intraluminal uterine hypodensity and uterine malignancy and establish thresholds that would minimize routine gynecological evaluation. METHODS: Two groups were recruited retrospectively: cancer group, which comprised 32 sequential endometrial cancer patients, and postmenopausal group, which comprised 63 women, with no known gynecologic malignancy.Two radiologists independently measured hypodensity, transversely in the axial plane and anterioposteriorly in the sagittal plane.The association between cancer and hypodensity was evaluated. Receiver operating characteristic curves were evaluated diameters predictive of cancer. RESULTS: Hypodensity was associated with cancer (cancer group, 93.8% vs. postmenopausal group, 38.1%; P < 0.0001). Hypodensity diameters correlated highly with prediction of cancer (transverse area under the curve, 0.899; anteroposterior area under the curve, 0.892). Diameters of 19.5 mm transverse and 6.0 mm anteroposterior yielded a sensitivity of 87% and 83% and specificity of 91% and 83%, respectively. CONCLUSIONS: Intrauterine hypodensity is a common finding in computed tomography scans of postmenopausal women. A transverse diameter of 19.5 mm and an anteroposterior diameter of 6.0 mm are suggested as thresholds for further gynecological sonographic evaluation.


Assuntos
Pós-Menopausa , Tomografia Computadorizada por Raios X , Neoplasias Uterinas/diagnóstico por imagem , Neoplasias Uterinas/patologia , Idoso , Feminino , Humanos , Estudos Retrospectivos , Sensibilidade e Especificidade , Útero/diagnóstico por imagem , Útero/patologia
7.
Int J Health Sci (Qassim) ; 3(2): 237-41, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21475542

RESUMO

Progressive Multifocal Leucoencephalopathy (PML) is a rare neurological disorder. The clinical suspicion about this disease in the setting of an immunosuppressive patient even in presence of vague neurological symptoms has to be very high. We describe here two cases of PML a post renal transplant patient and second elderly patient with no underlying immunosuppression.

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