1
|
Güner G, Özçakar L, Baytar Y, Onur MR, Demir M, Aktaş BY, Aktepe OH, Güven DC, Taban H, Yıldırım HÇ, Akın S, Aksoy S, Kara M, Dizdar Ö. Sonographic Measurements of Rectus Femoris Muscle Thickness Strongly Predict Neutropenia in Cancer Patients Receiving Chemotherapy. Cancers (Basel) 2024; 16:1061. [PMID: 38473418 DOI: 10.3390/cancers16051061] [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: 02/12/2024] [Revised: 02/22/2024] [Accepted: 03/03/2024] [Indexed: 03/14/2024] Open
Abstract
The objective of this study was to explore the possible association between low skeletal muscle mass (SMM)-assessed by computed tomography (CT) and ultrasound (US)-and hematologic toxicity in cancer patients. A prospective cohort study was conducted in cancer patients who received anthracycline-based chemotherapy between 2018 and 2020 and who had baseline abdominal CT including L3 level for measuring SMM. Regional muscle measurements were carried out using US. A total of 65 patients (14 males, 51 females) were included. ROC (receiver operating characteristic) analysis identified threshold values of 18.0 mm [AUC (area under the curve) = 0.765] for females and 20.0 mm (AUC = 0.813) for males, predicting severe neutropenia. Using these cut-offs, females with low rectus femoris (RF) thickness (<18.0 mm) had a significantly higher incidence of grade ≥3 neutropenia (50.0% vs. 10.8%, p = 0.005), and males with low RF values (<20.0 mm) had a higher incidence (80.0% vs. 22.2%, p = 0.063). A regression analysis, irrespective of age, gender, and body mass index, revealed that only low RF muscle thickness increased the risk of grade 3-4 neutropenia by 9.210 times (95% CI = 2.401-35.326, p = 0.001). Utilizing US to measure RF muscle thickness aids in identifying cancer patients at an elevated risk of developing neutropenia. Needless to say, US can serve as a convenient and easily accessible tool for assessing low SMM, providing repeat point-of-care evaluations in clinical practice.
Collapse
Affiliation(s)
- Gürkan Güner
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
- Department of Medical Oncology, Medical Point Hospital, Izmir Economy University Faculty of Medicine, Izmir 35575, Turkey
| | - Levent Özçakar
- Department of Physical and Rehabilitation Medicine, Hacettepe University Faculty of Medicine, Ankara 06230, Turkey
| | - Yusuf Baytar
- Department of Radiology, Hacettepe University Faculty of Medicine, Ankara 06230, Turkey
| | - Mehmet Ruhi Onur
- Department of Radiology, Hacettepe University Faculty of Medicine, Ankara 06230, Turkey
| | - Metin Demir
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
| | - Burak Yasin Aktaş
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
| | - Oktay Halit Aktepe
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
| | - Deniz Can Güven
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
| | - Hakan Taban
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
| | - Hasan Çağrı Yıldırım
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
| | - Serkan Akın
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
| | - Sercan Aksoy
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
| | - Murat Kara
- Department of Physical and Rehabilitation Medicine, Hacettepe University Faculty of Medicine, Ankara 06230, Turkey
| | - Ömer Dizdar
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara 06230, Turkey
| |
Collapse
|
2
|
Candemir B, Cuce F, Akın S, Gulcelik NE. Ultrasound-based quantitative tools in predicting renal involvement in asymptomatic primary hyperparathyroidism. J Endocrinol Invest 2024:10.1007/s40618-023-02284-0. [PMID: 38280162 DOI: 10.1007/s40618-023-02284-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 12/14/2023] [Indexed: 01/29/2024]
Abstract
PURPOSE Asymptomatic primary hyperparathyroidism (aPHPT) has been recognized as a condition that can lead to renal complications. Timely identification of prognostic indicators for renal impairment holds the potential to facilitate proactive monitoring and treatment strategies in these patients. This study aims to investigate the utility of acoustic radiation force impulse (ARFI) imaging and renal resistive index (RRI), in identifying renal parenchymal and vascular changes in patients with aPHPT. METHODS Forty-two patients with aPHPT and 42 controls matched for age, sex, and body mass index were included in the study. The presence of renovascular changes was evaluated by RRI measurement with Doppler ultrasonography, and the presence of renal parenchymal involvement was evaluated by ARFI quantification, given as shear wave velocity (SWV). RESULTS In aPHPT patients, both the mean RRI and mean SWV values exhibited substantial elevation compared to the control group (P < 0.001 for both). Significant associations were observed between SWV values and serum calcium, parathyroid hormone (PTH), and adenoma size within the patient group (P < 0.001, P < 0.001, P = 0.016, respectively). Similarly, the mean RRI demonstrated positive correlations with serum calcium and PTH levels in the patient group (P< 0.001, P = 0.011, respectively). Multivariate linear regression analysis underscored the connection between mean RRI and mean SWV values with serum calcium levels within the patient group. In addition, serum PTH levels affected mean SWV positively and significantly. CONCLUSION The use of ARFI imaging and RRI measurements appears to hold potential in identifying renal involvement in patients with aPHPT.
Collapse
Affiliation(s)
- B Candemir
- Gulhane Faculty of Medicine, Department of Endocrinology and Metabolism, University of Health Sciences, Keçiören, 06010, Ankara, Turkey.
| | - F Cuce
- Gulhane Faculty of Medicine, Department of Radiology, University of Health Sciences, Ankara, Turkey
| | - S Akın
- Gulhane Faculty of Medicine, Department of Endocrinology and Metabolism, University of Health Sciences, Keçiören, 06010, Ankara, Turkey
| | - N E Gulcelik
- Gulhane Faculty of Medicine, Department of Endocrinology and Metabolism, University of Health Sciences, Keçiören, 06010, Ankara, Turkey
| |
Collapse
|
3
|
Guven DC, Sahin TK, Akın S, Uckun FM. SARS-CoV-2 Vaccine Efficacy in Patients with Hematologic Malignancies: Practical Points for Further Research. Oncologist 2022; 27:e917-e918. [PMID: 36005823 PMCID: PMC9632303 DOI: 10.1093/oncolo/oyac173] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 07/18/2022] [Indexed: 01/05/2023] Open
Abstract
This letter to the editor responds to comments on a recently published article on seroconversion rates after COVID-19 vaccination.
Collapse
Affiliation(s)
- Deniz C Guven
- Corresponding Author: Deniz Can Guven, Hacettepe Universitesi Tip Fakultesi, Turkey.
| | - Taha K Sahin
- Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Serkan Akın
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey,Bone Marrow Transplantation Unit, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Fatih M Uckun
- Immuno-Oncology Program and COVID-19 Task Force, Ares Pharmaceuticals, St. Paul, MN, USA
| |
Collapse
|
4
|
Guven DC, Sahin TK, Akın S, Uckun FM. Impact of Therapy in Patients with Hematologic Malignancies on Seroconversion Rates After SARS-CoV-2 Vaccination. Oncologist 2022; 27:e357-e361. [PMID: 35274729 PMCID: PMC8982368 DOI: 10.1093/oncolo/oyac032] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 01/16/2022] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION The leading professional organizations in the field of hematology have recommended severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2) vaccination for all patients with hematologic malignancies notwithstanding efficacy concerns. Here we report a systematic literature review regarding the antibody response to SARS-CoV-2 vaccination in patients with hematologic malignancies and its key determinants. METHODS We conducted a systematic search of original articles evaluating the seroconversion rates with SARS-CoV-2 vaccines in hematological malignancies from the PubMed database published between April 1, 2021 and December 4, 2021. Calculated risk differences (RD) and 95% confidence intervals (CI) to compare seroconversion rates between patients with hematologic malignancies versus healthy control subjects used the Review Manager software, version 5.3. RESULTS In our meta-analysis, we included 26 studies with control arms. After the first dose of vaccination, patients with hematologic malignancies had significantly lower seroconversion rates than controls (33.3% vs 74.9%; RD: -0.48%, 95% CI: -0.60%, -0.36%, P < .001). The seroconversion rates increased after the second dose, although a significant difference remained between these 2 groups (65.3% vs 97.8%; RD: -0.35%, 95% CI: -0.42%, -0.28%, P < .001). This difference in seroconversion rates was particularly pronounced for Chronic Lymphocytic Leukemia (CLL) patients (RD: -0.46%, 95% CI: -0.56, -0.37, P < .001), and for patients with B-lineage leukemia/lymphoma treated with anti-CD20 antibodies (RD: -0.70%, 95% CI: -0.88%, -0.51%, P < .001) or Bruton Tyrosine Kinase Inhibitors (BTKi; RD: -0.63%, 95% CI: -0.85%, -0.41%, P < .001). The RD was lower for patients under remission (RD: -0.10%, 95% CI: -0.18%, -0.02%, P = .01). CONCLUSION The seroconversion rates following SARS-CoV-2 vaccination in patients with hematologic malignancies, especially in CLL patients and patients treated with anti-CD20 antibodies or BTKi, were significantly lower than the seroconversion rates in healthy control subjects. Effective strategies capable of improving vaccine efficacy in these vulnerable patient populations are urgently needed.
Collapse
Affiliation(s)
- Deniz C Guven
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey,Corresponding author: Deniz Can Guven, Department of Medical Oncology, Hacettepe University Cancer Institute, 06100 Sıhhıye, Ankara, Turkey. Tel: +90 312 305 43 30;
| | - Taha K Sahin
- Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Serkan Akın
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey,Bone Marrow Transplantation Unit, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Fatih M Uckun
- Immuno-Oncology Program and COVID-19 Task Force, Ares Pharmaceuticals, St. Paul, MN 55110, USA
| |
Collapse
|
5
|
Göksel S, Akın S, Akdoğan RA, Rakıcı S, Abdioğlu GY, Ayvaz MA. 18F-FDG PET/CT Imaging of Metastatic Testicular Choriocarcinoma Mimicking Gastric Cancer which Initial Symptom is Melena. Mol Imaging Radionucl Ther 2021; 30:47-49. [PMID: 33586408 PMCID: PMC7885282 DOI: 10.4274/mirt.galenos.2020.65668] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Gastric metastasis of choriocarcinoma is rarely reported in the literature. This case report presents the case of multiple metastatic testicular choriocarcinoma mimicking gastric cancer, with melena as the initial symptom. In this case, 18fluorine-fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) showed that the testis was the primary focus. The contribution of PET/CT is significant to primary focus detection in metastatic diseases of unknown primary origin that presented gastrointestinal bleeding. In addition to its use in staging of testicular carcinoma, PET/CT provides significant benefit in evaluating patients with increased levels of tumor markers and in detecting recurrence.
Collapse
Affiliation(s)
- Sibel Göksel
- Recep Tayyip Erdoğan University Faculty of Medicine, Department of Nuclear Medicine, Rize, Turkey
| | - Serkan Akın
- Recep Tayyip Erdoğan University Faculty of Medicine, Department of Medical Oncology, Rize, Turkey
| | - Remzi Adnan Akdoğan
- Recep Tayyip Erdoğan University Faculty of Medicine, Department of Gastroenterology, Rize, Turkey
| | - Sema Rakıcı
- Recep Tayyip Erdoğan University Faculty of Medicine, Department of Radiation Oncology, Rize, Turkey
| | - Göksu Yavuz Abdioğlu
- Recep Tayyip Erdoğan University Faculty of Medicine, Department of Pathology, Rize, Turkey
| | - Muhammet Ali Ayvaz
- Recep Tayyip Erdoğan University Faculty of Medicine, Department of Gastroenterology, Rize, Turkey
| |
Collapse
|
6
|
Akın Ş, Yazgan Aksoy D, Akın S, Kılıç M, Yetişir F, Bayraktar M. Prediction of central lymph node metastasis in patientswith thyroid papillary microcarcinoma. Turk J Med Sci 2017; 47:1723-1727. [PMID: 29306230 DOI: 10.3906/sag-1702-99] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Background/aim: The purpose of this study was to analyze the clinicopathological characteristics of patients with papillary thyroid carcinoma (PTC) and papillary thyroid microcarcinoma (PTMC) and predictive factors for central lymph node metastasis (CLNM).Materials and methods: Patients diagnosed as having PTC and PTMC were evaluated. Clinical and laboratory parameters were recorded.Results: The mean age at diagnosis was 47.3 +- 11.9 years. Of all 223 patients, 91 (40.8%) had lymph nodes removed, 29 of whom had lymph node metastasis and 24 of whom had only CLNM. Univariate analysis revealed that central lymph node metastasis was associated with male sex, presence of bilaterality, presence of extrathyroidal extension, and tumor size (P = 0.033, P = 0.027, P < 0.001, P < 0.001, respectively). However, multivariate logistic regression analysis showed that sex, age, tumor size, multifocality, bilaterality, extrathyroidal extension, clinical suspicion, and chronic lymphocytic thyroiditis were not significantly correlated with an increased risk for CLNM.Conclusion: Lymph node metastasis is known to be a significant predictor of locoregional recurrence in patients with PTC and PTMC. Further prospective studies are needed to identify the extent of surgery such as central lymph node dissection in patients with PTC or PTMC.
Collapse
|
7
|
Akın Ş, Akın S, Tuncel M, Ersöz Gülçelik N. Symptomatic Adrenal Insufficiency due to Bilateral Adrenal Non-Hodgkin’s Lymphoma. tjem 2016. [DOI: 10.4274/tjem.3104] [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: 12/01/2022] Open
|
8
|
Akın S, Açıkgöz S, Gülen M, Akyürek C, Sönmezoğlu S. Investigation of the photoinduced electron injection processes for natural dye-sensitized solar cells: the impact of anchoring groups. RSC Adv 2016. [DOI: 10.1039/c6ra19653e] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, nine different natural dyes having various anchoring groups were extracted from various plants and used as photo-sensitizers in DSSC applications. The photovoltaic parameters were investigated as a function of these anchoring groups.
Collapse
Affiliation(s)
- S. Akın
- Department of Metallurgical and Materials Engineering
- Karamanoğlu Mehmetbey University
- Karaman
- Turkey
- Nanotechnology R&D Laboratory
| | - S. Açıkgöz
- Department of Metallurgical and Materials Engineering
- Karamanoğlu Mehmetbey University
- Karaman
- Turkey
| | - M. Gülen
- Department of Metallurgical and Materials Engineering
- Karamanoğlu Mehmetbey University
- Karaman
- Turkey
- Nanotechnology R&D Laboratory
| | - C. Akyürek
- Department of Food Process
- Karamanoğlu Mehmetbey University
- Karaman
- Turkey
| | - S. Sönmezoğlu
- Department of Metallurgical and Materials Engineering
- Karamanoğlu Mehmetbey University
- Karaman
- Turkey
- Nanotechnology R&D Laboratory
| |
Collapse
|
9
|
Açıl M, Açıl T, Ülger H, Yalçın Çok O, Bozdoğan N, Akın S, Turkoz A, Eker E, Arıboğan A. 802. Relationship Between Plasma BNP Values and Perioperative Myocardial Ischaemia in Patients With Chronic Ischaemic Heart Disease Undergoing TURP. Reg Anesth Pain Med 2008. [DOI: 10.1136/rapm-00115550-200809001-00494] [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: 11/04/2022]
|
10
|
|
11
|
|