Rita Ahmad
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Rita Ahmad has a total of 67 co-authors. Here are the top co-authors by number of shared publications:
- Mohammed A. Yassin
Hematology Section, Department of Medical Oncology National Center for Cancer Care and Research Doha Qatar
7 shared publications - Lina Okar
Department of Neurology SSM Health/Saint Louis University Saint Louis Missouri USA
6 shared publications - Ayman Abdullah Dalol
College of Medicine, Qatar University, Doha 2713, Qatar
3 shared publications Mohamed Abdelrazek
Department of Radiology Hamad Medical Corporation Doha Qatar
3 shared publications- Mohammed Abdulgayoom
Hematology Department, National Center for Cancer Care and Research (NCCCR), Hamad Medical Corporation, Doha, Qatar
3 shared publications - Motaz Almahmood
Department of Internal Medicine, Phoenixville Hospital–Tower Health, Phoenixville, PA, USA
3 shared publications
Latest Publications
- Open Access
- 10 August 2026
- Published by SAGE Publications in Journal of Investigative Medicine High Impact Case Reports
- Vol. 14
Encephalopathy Post CAR-T Cell Therapy in Relapsed/Refractory Multiple Myeloma: Beyond ICANS
Human herpesvirus 6 (HHV-6) reactivation is a rare but serious complication of chimeric antigen receptor T-cell (CAR-T) therapy that can overlap with immune effector cell-associated neurotoxicity syndrome (ICANS) or cytokine release syndrome (CRS), making diagnosis and management challenging. We describe a 68-year-old man with relapsed/refractory IgA kappa multiple myeloma who received multiple prior therapies, including CyBorD, mVRD-lite, Dara-CyBorD, VD-ACE, and KPd, before undergoing lymphodepleting chemotherapy and CAR-T infusion. Early after infusion he developed grade 2 CRS and ICANS that improved with tocilizumab and corticosteroids, followed by recurrent encephalopathy with progressive neurologic decline. Initial infectious evaluation was negative, but repeat cerebrospinal fluid (CSF) and plasma polymerase chain reaction testing revealed HHV-6 reactivation. Antiviral therapy with foscarnet, later switched to ganciclovir, was initiated with corticosteroids and intravenous immunoglobulin. Although repeat CSF testing showed transient viral clearance, neurologic function continued to decline, and brain MRI demonstrated findings consistent with ICANS, including scattered white matter signal abnormalities and dural enhancement. Despite aggressive management, the patient developed multiorgan failure and died. This case illustrates the diagnostic complexity of HHV-6 reactivation during CAR-T therapy, where overlapping clinical and radiologic features with ICANS can obscure recognition; profound immunosuppression from prior treatment and CAR-T-induced immune dysregulation likely predisposed to viral reactivation. HHV-6 reactivation is a critical, underrecognized cause of neurotoxicity after CAR-T therapy, and clinicians should maintain a high index of suspicion in patients with delayed or atypical neurotoxicity, since early virologic testing and prompt antiviral therapy may improve outcomes in this vulnerable population.
- 10 August 2026
- Published by SAGE Publications in Journal of Investigative Medicine High Impact Case Reports
- Vol. 14
Open AccessEncephalopathy Post CAR-T Cell Therapy in Relapsed/Refractory Multiple Myeloma: Beyond ICANS
Human herpesvirus 6 (HHV-6) reactivation is a rare but serious complication of chimeric antigen receptor T-cell (CAR-T) therapy that can overlap with immune effector cell-associated neurotoxicity syndrome (ICANS) or cytokine release syndrome (CRS), making diagnosis and management challenging. We describe a 68-year-old man with relapsed/refractory IgA kappa multiple myeloma who received multiple prior therapies, including CyBorD, mVRD-lite, Dara-CyBorD, VD-ACE, and KPd, before undergoing lymphodepleting chemotherapy and CAR-T infusion. Early after infusion he developed grade 2 CRS and ICANS that improved with tocilizumab and corticosteroids, followed by recurrent encephalopathy with progressive neurologic decline. Initial infectious evaluation was negative, but repeat cerebrospinal fluid (CSF) and plasma polymerase chain reaction testing revealed HHV-6 reactivation. Antiviral therapy with foscarnet, later switched to ganciclovir, was initiated with corticosteroids and intravenous immunoglobulin. Although repeat CSF testing showed transient viral clearance, neurologic function continued to decline, and brain MRI demonstrated findings consistent with ICANS, including scattered white matter signal abnormalities and dural enhancement. Despite aggressive management, the patient developed multiorgan failure and died. This case illustrates the diagnostic complexity of HHV-6 reactivation during CAR-T therapy, where overlapping clinical and radiologic features with ICANS can obscure recognition; profound immunosuppression from prior treatment and CAR-T-induced immune dysregulation likely predisposed to viral reactivation. HHV-6 reactivation is a critical, underrecognized cause of neurotoxicity after CAR-T therapy, and clinicians should maintain a high index of suspicion in patients with delayed or atypical neurotoxicity, since early virologic testing and prompt antiviral therapy may improve outcomes in this vulnerable population.
- Open Access
- 8 July 2026
- Published by Elsevier in Clinical Lymphoma Myeloma and Leukemia
- Vol. 26 (9) , 595-608.e3
Dose Optimization of Dasatinib in Chronic-Phase Chronic Myeloid Leukemia: A Systematic Review and Meta-Analysis of 50 mg Versus 100 mg Once Daily
- 8 July 2026
- Published by Elsevier in Clinical Lymphoma Myeloma and Leukemia
- Vol. 26 (9) , 595-608.e3
Open AccessDose Optimization of Dasatinib in Chronic-Phase Chronic Myeloid Leukemia: A Systematic Review and Meta-Analysis of 50 mg Versus 100 mg Once Daily
- Open Access
Prevalence and Prognostic Impact of ASXL1 Somatic Mutation in Patients with Chronic Myeloid Leukemia: A Systematic Review and Meta-Analysis
Background: Outcomes in chronic myeloid leukemia (CML) remain heterogeneous despite effective BCR::ABL1 tyrosine kinase inhibitors (TKIs). Somatic mutations in epigenetic regulators, particularly additional sex combs-like 1 (ASXL1), have been implicated in adverse prognosis, but their clinical impact in CML has not been systematically defined. Methods: A systematic review was conducted using CINAHL, EMBASE, MEDLINE Ultimate, and PubMed from inception through August 2025. A total of 1339 records were identified; the eligible studies included adult and pediatric patients with chronic and advanced-phase (accelerated or blast) CML. After duplicate removal and screening, 11 studies met the inclusion criteria; these included adult patients only and were included in a qualitative synthesis and meta-analysis. ASXL1 mutation status was assessed using validated molecular methods. The outcomes included the molecular response, cytogenetic response, survival, and treatment resistance. Random-effects models were used to calculate the pooled odds ratios (ORs) with 95% confidence intervals (CIs). Statistical heterogeneity was assessed using the I2 statistic. Results: Across the included studies, ASXL1 mutations were detected in approximately 15% of patients. At 12 months, patients with ASXL1 mutations had significantly lower odds of achieving a major molecular response (MMR) compared with ASXL1-wildtype patients (OR 0.29; 95% CI 0.16–0.51; p < 0.0001; I2 = 30%). No statistically significant difference was observed in the complete cytogenetic response (CCyR) (OR 0.30; 95% CI 0.02–5.31; p = 0.41; I2 = 68%). Compared with patients harboring other non-ASXL1 somatic mutations, an ASXL1 mutation was not associated with a significant difference in MMR (OR 0.49; 95% CI 0.23–1.05; p = 0.067; I2 = 0%). Conclusions: ASXL1 mutations may be associated with an inferior molecular response to TKI therapy in CML, supporting their role as an adverse prognostic biomarker. These findings highlight the potential value of incorporating myeloid mutation profiling into future CML risk-stratification strategies.
Open AccessPrevalence and Prognostic Impact of ASXL1 Somatic Mutation in Patients with Chronic Myeloid Leukemia: A Systematic Review and Meta-Analysis
Background: Outcomes in chronic myeloid leukemia (CML) remain heterogeneous despite effective BCR::ABL1 tyrosine kinase inhibitors (TKIs). Somatic mutations in epigenetic regulators, particularly additional sex combs-like 1 (ASXL1), have been implicated in adverse prognosis, but their clinical impact in CML has not been systematically defined. Methods: A systematic review was conducted using CINAHL, EMBASE, MEDLINE Ultimate, and PubMed from inception through August 2025. A total of 1339 records were identified; the eligible studies included adult and pediatric patients with chronic and advanced-phase (accelerated or blast) CML. After duplicate removal and screening, 11 studies met the inclusion criteria; these included adult patients only and were included in a qualitative synthesis and meta-analysis. ASXL1 mutation status was assessed using validated molecular methods. The outcomes included the molecular response, cytogenetic response, survival, and treatment resistance. Random-effects models were used to calculate the pooled odds ratios (ORs) with 95% confidence intervals (CIs). Statistical heterogeneity was assessed using the I2 statistic. Results: Across the included studies, ASXL1 mutations were detected in approximately 15% of patients. At 12 months, patients with ASXL1 mutations had significantly lower odds of achieving a major molecular response (MMR) compared with ASXL1-wildtype patients (OR 0.29; 95% CI 0.16–0.51; p < 0.0001; I2 = 30%). No statistically significant difference was observed in the complete cytogenetic response (CCyR) (OR 0.30; 95% CI 0.02–5.31; p = 0.41; I2 = 68%). Compared with patients harboring other non-ASXL1 somatic mutations, an ASXL1 mutation was not associated with a significant difference in MMR (OR 0.49; 95% CI 0.23–1.05; p = 0.067; I2 = 0%). Conclusions: ASXL1 mutations may be associated with an inferior molecular response to TKI therapy in CML, supporting their role as an adverse prognostic biomarker. These findings highlight the potential value of incorporating myeloid mutation profiling into future CML risk-stratification strategies.
- Open Access
- 25 April 2026
- Published by Springer Nature in BMC Infectious Diseases
- Vol. 26 (1)
Cerebral venous thrombosis and bilateral ophthalmoplegia complicating sphenoid sinusitis: a case report
Sphenoid sinusitis is a rare form of sinusitis characterized by inflammation of the sphenoid sinuses, located deep within the skull. Despite its rarity, sp
- 25 April 2026
- Published by Springer Nature in BMC Infectious Diseases
- Vol. 26 (1)
Open AccessCerebral venous thrombosis and bilateral ophthalmoplegia complicating sphenoid sinusitis: a case report
Sphenoid sinusitis is a rare form of sinusitis characterized by inflammation of the sphenoid sinuses, located deep within the skull. Despite its rarity, sp
- Open Access
- 23 March 2026
- Published by MDPI AG in Preprints.org
Prevalence and Prognostic Impact of ASXL1 Somatic Mutation in Patients with Chronic Myeloid Leukemia: A Systemic Review and Meta-Analysis
Background: Outcomes in chronic myeloid leukemia (CML) remain heterogeneous despite effective BCR::ABL1 tyrosine kinase inhibitors (TKIs). Somatic mutations in epigenetic regulators, particularly additional sex combs like 1 (ASXL1), have been implicated in adverse prognosis, but their clinical impact in CML has not been systematically defined. Methods: A systematic review was conducted using CINAHL, EMBASE, MEDLINE Ultimate, and PubMed from inception through August 2025. A total of 1,339 records were identified; after duplicate removal and screening, 11 studies met inclusion criteria and were included in qualitative synthesis and meta-analysis. Eligible studies included adult and pediatric patients with chronic and advanced phase (accelerated or blast) CML with ASXL1 mutation status assessed using validated molecular methods. Outcomes included molecular response, cytogenetic response, survival, and treatment resistance. Random-effects models were used to calculate pooled odds ratios (ORs) with 95% confidence intervals (CI). Statistical heterogeneity was assessed using the I² statistic. Results: Across included studies, ASXL1 mutations were detected in approximately 16% of patients. At 12 months, ASXL1-mutated patients had significantly lower odds of achieving major molecular response (MMR) compared with ASXL1–wildtype patients (OR 0.29; 95% CI 0.16–0.51; p< 0.0001; I²=30%). No statistically significant difference was observed in complete cytogenetic response (CCyR) (OR 0.30; 95% CI 0.02–5.31; p=0.41; I²=68%). Compared with patients harbouring other non-ASXL1 somatic mutations, ASXL1 mutation was not associated with a significant difference in MMR (OR 0.49; 95% CI 0.23–1.05; p=0.067; I²=0%). Conclusions: ASXL1 mutations are associated with inferior molecular response to TKI therapy in CML, supporting their role as an adverse prognostic biomarker. These findings highlight the potential value of incorporating myeloid mutation profiling into future CML risk-stratification strategies.
- 23 March 2026
- Published by MDPI AG in Preprints.org
Open AccessPrevalence and Prognostic Impact of ASXL1 Somatic Mutation in Patients with Chronic Myeloid Leukemia: A Systemic Review and Meta-Analysis
Background: Outcomes in chronic myeloid leukemia (CML) remain heterogeneous despite effective BCR::ABL1 tyrosine kinase inhibitors (TKIs). Somatic mutations in epigenetic regulators, particularly additional sex combs like 1 (ASXL1), have been implicated in adverse prognosis, but their clinical impact in CML has not been systematically defined. Methods: A systematic review was conducted using CINAHL, EMBASE, MEDLINE Ultimate, and PubMed from inception through August 2025. A total of 1,339 records were identified; after duplicate removal and screening, 11 studies met inclusion criteria and were included in qualitative synthesis and meta-analysis. Eligible studies included adult and pediatric patients with chronic and advanced phase (accelerated or blast) CML with ASXL1 mutation status assessed using validated molecular methods. Outcomes included molecular response, cytogenetic response, survival, and treatment resistance. Random-effects models were used to calculate pooled odds ratios (ORs) with 95% confidence intervals (CI). Statistical heterogeneity was assessed using the I² statistic. Results: Across included studies, ASXL1 mutations were detected in approximately 16% of patients. At 12 months, ASXL1-mutated patients had significantly lower odds of achieving major molecular response (MMR) compared with ASXL1–wildtype patients (OR 0.29; 95% CI 0.16–0.51; p< 0.0001; I²=30%). No statistically significant difference was observed in complete cytogenetic response (CCyR) (OR 0.30; 95% CI 0.02–5.31; p=0.41; I²=68%). Compared with patients harbouring other non-ASXL1 somatic mutations, ASXL1 mutation was not associated with a significant difference in MMR (OR 0.49; 95% CI 0.23–1.05; p=0.067; I²=0%). Conclusions: ASXL1 mutations are associated with inferior molecular response to TKI therapy in CML, supporting their role as an adverse prognostic biomarker. These findings highlight the potential value of incorporating myeloid mutation profiling into future CML risk-stratification strategies.
- 21 March 2026
- Published by International Platform of Registered Systematic Review and Meta-analysis Protocols (INPLASY)
Prevalence and Prognostic Impact of ASXL1 Somatic Mutation in Patients with Chronic Myeloid Leukemia: A Systemic Review and Meta-Analysis
INPLASY202630075 Prevalence and Prognostic Impact of ASXL1 Somatic Mutation in Patients with Chronic Myeloid Leukemia: A Systemic Review and Meta-Analysis Keywords: chronic myeloid leukemia, CML, m…
- 21 March 2026
- Published by International Platform of Registered Systematic Review and Meta-analysis Protocols (INPLASY)
Prevalence and Prognostic Impact of ASXL1 Somatic Mutation in Patients with Chronic Myeloid Leukemia: A Systemic Review and Meta-Analysis
INPLASY202630075 Prevalence and Prognostic Impact of ASXL1 Somatic Mutation in Patients with Chronic Myeloid Leukemia: A Systemic Review and Meta-Analysis Keywords: chronic myeloid leukemia, CML, m…
- Open Access
- 11 August 2025
- Published by Springer Nature in Research Square
Predictors of Preventive Breast Cancer Screening: Findings From a National Dataset
Introduction Breast cancer is a major health concern and is the most common cancer in women according to the American Cancer Society with 1 in 3 women diagnosed each year. Breast cancer screening with annual or biennial mammography for women 40 years and older has significantly decreased mortality. Our aim in this study is to assess factors predicting and affecting adherence to breast cancer screening in the United States, consequently recognizing where and how an intervension is required. Methods A retrospective analysis was conducted of adult women using the 2021 National Health Interview Survey (NHIS). Data that was analyzed and recorded included age, race, anxiety, BMI, smoking status, region, education level, residence location, health insurance, self-rated health status, pay for mammogram, and mammogram within 2 years. Results Data from 6334 women between 50 and 74 of age was analyzed. 4583 women (72.8%) had a mammogram within the past two year while 1751 (27.2%) had notscreening was not affected by age as 27.8% of women between 50–64 and 26.2% of women between 65–74 did not have a mammogram (P value = 0.223), or by region (P value = 0.176). However, adherenece to screening varied significantly by race (P value < 0.0001), BMI (P value = 0.02), level of education (P value < 0.0001), insurance status (P value < 0.0001), smoking status (P value = 0.0001), and place of residence (P value = 0.002). Conclusion Breast cancer screening has substantial role in reducing morbidity and mortality from the disease. Further interventions are still needed to assess factors preventing women from undergoing screening and assist in addressing such factors.
- 11 August 2025
- Published by Springer Nature in Research Square
Open AccessPredictors of Preventive Breast Cancer Screening: Findings From a National Dataset
Introduction Breast cancer is a major health concern and is the most common cancer in women according to the American Cancer Society with 1 in 3 women diagnosed each year. Breast cancer screening with annual or biennial mammography for women 40 years and older has significantly decreased mortality. Our aim in this study is to assess factors predicting and affecting adherence to breast cancer screening in the United States, consequently recognizing where and how an intervension is required. Methods A retrospective analysis was conducted of adult women using the 2021 National Health Interview Survey (NHIS). Data that was analyzed and recorded included age, race, anxiety, BMI, smoking status, region, education level, residence location, health insurance, self-rated health status, pay for mammogram, and mammogram within 2 years. Results Data from 6334 women between 50 and 74 of age was analyzed. 4583 women (72.8%) had a mammogram within the past two year while 1751 (27.2%) had notscreening was not affected by age as 27.8% of women between 50–64 and 26.2% of women between 65–74 did not have a mammogram (P value = 0.223), or by region (P value = 0.176). However, adherenece to screening varied significantly by race (P value < 0.0001), BMI (P value = 0.02), level of education (P value < 0.0001), insurance status (P value < 0.0001), smoking status (P value = 0.0001), and place of residence (P value = 0.002). Conclusion Breast cancer screening has substantial role in reducing morbidity and mortality from the disease. Further interventions are still needed to assess factors preventing women from undergoing screening and assist in addressing such factors.
- Open Access
- 24 May 2021
- Published by Wiley in Clinical Case Reports
- Vol. 9 (5) , e04258
Low back pain in beta thalassemia major revealing sacral extramedullay hematopoeisis: A case report
Extramedullary hematopoiesis (EMH) is a well‐known complication of beta thalassemia major and frequently occurs in typical sites such as liver or spleen. However, when presenting in unusual sites as sacrum, other diagnosis should be excluded by histopathology prior to deciding on treatment plan.
- 24 May 2021
- Published by Wiley in Clinical Case Reports
- Vol. 9 (5) , e04258
Open AccessLow back pain in beta thalassemia major revealing sacral extramedullay hematopoeisis: A case report
Extramedullary hematopoiesis (EMH) is a well‐known complication of beta thalassemia major and frequently occurs in typical sites such as liver or spleen. However, when presenting in unusual sites as sacrum, other diagnosis should be excluded by histopathology prior to deciding on treatment plan.
- Open Access
- 24 February 2021
- Published by Wiley in Clinical Case Reports
- Vol. 9 (4) , 1913-1916
Acute appendicitis revealing a diagnosis of chronic myelogenous leukemia
Gastrointestinal manifestations of leukemias have been well recognized. Typically, acute leukemias cause typhlitis or appendicitis more commonly than chronic leukemias. Our case points to appendicitis as possible manifestation of chronic myelogenous leukemia.
- 24 February 2021
- Published by Wiley in Clinical Case Reports
- Vol. 9 (4) , 1913-1916
Open AccessAcute appendicitis revealing a diagnosis of chronic myelogenous leukemia
Gastrointestinal manifestations of leukemias have been well recognized. Typically, acute leukemias cause typhlitis or appendicitis more commonly than chronic leukemias. Our case points to appendicitis as possible manifestation of chronic myelogenous leukemia.
- Open Access
- 19 December 2020
- Published by Wiley in Clinical Case Reports
- Vol. 9 (2) , 861-865
First report of COVID‐19 reinfection in a patient with beta thalassemia major
To optimize care for patients with hemoglobinopathies, frequent screening for COVID‐19 is prudent as viral kinetics in asplenic patients are unknown and differentiating prolonged viral shedding versus reinfection remains a challenge.
- 19 December 2020
- Published by Wiley in Clinical Case Reports
- Vol. 9 (2) , 861-865
Open AccessFirst report of COVID‐19 reinfection in a patient with beta thalassemia major
To optimize care for patients with hemoglobinopathies, frequent screening for COVID‐19 is prudent as viral kinetics in asplenic patients are unknown and differentiating prolonged viral shedding versus reinfection remains a challenge.