Shimaa Ahmed - Academia.edu (original) (raw)

Papers by Shimaa Ahmed

Journal of Cancer Therapy, 2015

Purpose: Aim of this prospective, phase III trial was to compare the efficacy and toxicity of int... more Purpose: Aim of this prospective, phase III trial was to compare the efficacy and toxicity of intravenous fluorouracil and oral capecitabine when given concurrently with radiation in adjuvant sitting for adenocarcinoma of the stomach after gastrectomy with D2 resection. Patients and Method: The study included 60 patients having histologically proven adenocarcinoma of the stomach or gastroesophageal junction; stage T2-4 N0-3 M0 after gastrectomy with D2 lymph node dissection. Eligible patients were randomly assigned to receive adjuvant radiotherapy concurrently with intravenous fluorouracil [arm A] or oral capecitabine [arm B]. Results: Ten patients cannot complete their whole treatment course because of either progressive [4 patients; 2 arm A and 2 arm B] or G 3 toxicity [1 patient] or refuse to complete their treatment [5 patients; 3 arm A and 2 arm B]. Patients received fluorouracil have significant increase grade 3 or 4 hematological [neutropenia] and gastrointestinal (diarrhoea, anorexia, and vomiting). During a median follow-up period of 24 months, the 2-year disease free and overall survivals in this study were 60% and 63.3%, for groups A and B respectively, while overall survival were 63.3% and 70% for groups A and B respectively without significant differences. Conclusion: Oral capecitabine concurrently with radiation therapy has comparable efficacy and favourable toxicity profile when compared to infusion fluorouracil as postoperative adjuvant therapy for gastric adenocarcinoma.

Background: As the survival rates of pediatric malignancies increased, many survivors experienced... more Background: As the survival rates of pediatric malignancies increased, many survivors experienced various long-term effects. Cognitive dysfunction may be one of the hazardous late effects among this critical age group. This study aimed to evaluate the cognitive functions, brain volume, and risk factors affecting them among survivors of hematological malignancies. Methods: This case-control study was conducted on 68 survivors of hematological malignancies, with a mean follow-up period 2.1± 1.2 years (ranged from 1 to 6.2 years). Age and sex-matched 68 child were selected as a comparison group. Detailed clinical and therapeutic data were collected from patients’ records. Assessment of cognitive function was done using Arabic version of the Stanford-Binet Test (version IV). Quantitative volumetric assessment of the brain was done using the NeuroQuant study (NQ). Results: The cancer survivors showed significantly lower levels in IQ and their subitems than the control group. Brain atroph...

Journal of Bone Oncology, 2021

Background: In breast cancer, painful bone metastases are common. Local radiotherapy is the stand... more Background: In breast cancer, painful bone metastases are common. Local radiotherapy is the standard treatment of painful bone metastases. Pain control and overall response rateswere low in radiotherapy alone. The objectives of this study were to compare the safety and efficacy of external beam radiotherapy with concurrent capecitabine vs. external beam radiotherapy alone in pain control of painful bone metastases in breast cancer patients. Materials and methods: Eighty-four patients with painful bone metastases from breast cancer participated in this prospective study. We randomized the patients into two groups: group A treated with radiotherapy 30 Gy in 10 fractions and group B treated with capecitabine 825 mg/m 2 every 12 hrs. concurrently with the same radiotherapy dose. Results: There was no statistically significant difference between the two groups regarding early treatment toxicity. Most of the toxicity was gastrointestinal (diarrhea and nausea) and mild (grade I or II). The median pain score decreased from week one, and there was a marked response at week4. The difference in median pain score between both groups was statistically significant with p-value = 0.045. The median analgesic score in both groups was statistically significant with a p-value = 0.032 at week 12. A complete response to pain at week 4 was 19% and 42.9% in groups A and B, respectively. Conclusion: Concurrent chemoradiation in painful bone metastases from breast cancer origin was tolerable and safe; it had a higher overall response rate and pain palliation than radiotherapy alone.

Journal of Cancer Therapy, 2018

Background and objectives: Surgery is the primary therapy for localized gastric cancer, but even ... more Background and objectives: Surgery is the primary therapy for localized gastric cancer, but even with the best results only 40% 5-year survival can be achieved with the use of postoperative adjuvant chemoradiotherapy. Preoperative therapy might help increase the R0 resection rate, which is an independent predictor of 5-year OS. Our study hypothesized that the concurrent combination of carboplatin-paclitaxel with radiation therapy would result in a pathological CR rate, which will be in turn associated with OAS and DFS benefits. Patients and methods: prospective phase II study included 32 patients with locally advanced gastric adenocarcinoma including gastroesophageal junction who received a combination of neoadjuvant conformal radiotherapy concurrently with carboplatin-paclitaxel followed by surgery. Results: Pathological CR and R0 resection rates were 18.8% and 75% respectively. With a median follow up of 24 months, 2 years disease-free survival was 28.1% and overall survival was 51.3%. The regimen was tolerated with neither grade 4 toxicities nor deaths. Conclusion: Neoadjuvant radiotherapy concomitant with carboplatin-paclitaxel chemotherapy is a well-tolerated approach for patients with locally advanced gastric adenocarcinoma resulting in significant pathological CR and R0 resection margins as reflected by the good DFS and OS.

Egyptian Journal of Radiology and Nuclear Medicine, 2019

Background To assess the validity and accuracy of GI-RADS classification in the prediction of mal... more Background To assess the validity and accuracy of GI-RADS classification in the prediction of malignancy and in triaging the management protocol in ovarian lesions. Results One hundred fifty-six ovarian lesions were detected in the examined 116 women. The prevalence of malignant tumors was 44%. Overall GI-RADS classification rates were as follows: 41 cases (26.3%) were classified as GI-RADS 1, 26 cases (16 .7%) as GI-RADS 2, 34 cases (21.8%) as GI-RADS 3, 14 cases (8.9%) as GI-RADS 4, and 41 cases (26.3%) as GI-RADS 5. No follow-up was done in GI-RADS 1 patients. A final diagnosis of all GI-RADS 2 ovarian masses such as functional cyst (n = 10), hemorrhagic cysts (n = 8), corpus luteal cysts (n = 6), and some GI-RADS 3 as simple cysts (n = 10) was made by spontaneous resolution of these masses at follow-up after 6 weeks. Fifteen cases of GI-RADS 3 as mature teratoma, serous and mucinous cystadenoma, endometrioma, and ovarian torsion and all GI-RADS 4 and 5 underwent laparoscopic or ...

Journal of Cancer Therapy, 2018

Journal of Cancer Science & Therapy, 2017

Journal of Cancer Therapy, 2015

Purpose: Aim of this prospective, phase III trial was to compare the efficacy and toxicity of int... more Purpose: Aim of this prospective, phase III trial was to compare the efficacy and toxicity of intravenous fluorouracil and oral capecitabine when given concurrently with radiation in adjuvant sitting for adenocarcinoma of the stomach after gastrectomy with D2 resection. Patients and Method: The study included 60 patients having histologically proven adenocarcinoma of the stomach or gastroesophageal junction; stage T2-4 N0-3 M0 after gastrectomy with D2 lymph node dissection. Eligible patients were randomly assigned to receive adjuvant radiotherapy concurrently with intravenous fluorouracil [arm A] or oral capecitabine [arm B]. Results: Ten patients cannot complete their whole treatment course because of either progressive [4 patients; 2 arm A and 2 arm B] or G 3 toxicity [1 patient] or refuse to complete their treatment [5 patients; 3 arm A and 2 arm B]. Patients received fluorouracil have significant increase grade 3 or 4 hematological [neutropenia] and gastrointestinal (diarrhoea, anorexia, and vomiting). During a median follow-up period of 24 months, the 2-year disease free and overall survivals in this study were 60% and 63.3%, for groups A and B respectively, while overall survival were 63.3% and 70% for groups A and B respectively without significant differences. Conclusion: Oral capecitabine concurrently with radiation therapy has comparable efficacy and favourable toxicity profile when compared to infusion fluorouracil as postoperative adjuvant therapy for gastric adenocarcinoma.

Background: As the survival rates of pediatric malignancies increased, many survivors experienced... more Background: As the survival rates of pediatric malignancies increased, many survivors experienced various long-term effects. Cognitive dysfunction may be one of the hazardous late effects among this critical age group. This study aimed to evaluate the cognitive functions, brain volume, and risk factors affecting them among survivors of hematological malignancies. Methods: This case-control study was conducted on 68 survivors of hematological malignancies, with a mean follow-up period 2.1± 1.2 years (ranged from 1 to 6.2 years). Age and sex-matched 68 child were selected as a comparison group. Detailed clinical and therapeutic data were collected from patients’ records. Assessment of cognitive function was done using Arabic version of the Stanford-Binet Test (version IV). Quantitative volumetric assessment of the brain was done using the NeuroQuant study (NQ). Results: The cancer survivors showed significantly lower levels in IQ and their subitems than the control group. Brain atroph...

Journal of Bone Oncology, 2021

Background: In breast cancer, painful bone metastases are common. Local radiotherapy is the stand... more Background: In breast cancer, painful bone metastases are common. Local radiotherapy is the standard treatment of painful bone metastases. Pain control and overall response rateswere low in radiotherapy alone. The objectives of this study were to compare the safety and efficacy of external beam radiotherapy with concurrent capecitabine vs. external beam radiotherapy alone in pain control of painful bone metastases in breast cancer patients. Materials and methods: Eighty-four patients with painful bone metastases from breast cancer participated in this prospective study. We randomized the patients into two groups: group A treated with radiotherapy 30 Gy in 10 fractions and group B treated with capecitabine 825 mg/m 2 every 12 hrs. concurrently with the same radiotherapy dose. Results: There was no statistically significant difference between the two groups regarding early treatment toxicity. Most of the toxicity was gastrointestinal (diarrhea and nausea) and mild (grade I or II). The median pain score decreased from week one, and there was a marked response at week4. The difference in median pain score between both groups was statistically significant with p-value = 0.045. The median analgesic score in both groups was statistically significant with a p-value = 0.032 at week 12. A complete response to pain at week 4 was 19% and 42.9% in groups A and B, respectively. Conclusion: Concurrent chemoradiation in painful bone metastases from breast cancer origin was tolerable and safe; it had a higher overall response rate and pain palliation than radiotherapy alone.

Journal of Cancer Therapy, 2018

Background and objectives: Surgery is the primary therapy for localized gastric cancer, but even ... more Background and objectives: Surgery is the primary therapy for localized gastric cancer, but even with the best results only 40% 5-year survival can be achieved with the use of postoperative adjuvant chemoradiotherapy. Preoperative therapy might help increase the R0 resection rate, which is an independent predictor of 5-year OS. Our study hypothesized that the concurrent combination of carboplatin-paclitaxel with radiation therapy would result in a pathological CR rate, which will be in turn associated with OAS and DFS benefits. Patients and methods: prospective phase II study included 32 patients with locally advanced gastric adenocarcinoma including gastroesophageal junction who received a combination of neoadjuvant conformal radiotherapy concurrently with carboplatin-paclitaxel followed by surgery. Results: Pathological CR and R0 resection rates were 18.8% and 75% respectively. With a median follow up of 24 months, 2 years disease-free survival was 28.1% and overall survival was 51.3%. The regimen was tolerated with neither grade 4 toxicities nor deaths. Conclusion: Neoadjuvant radiotherapy concomitant with carboplatin-paclitaxel chemotherapy is a well-tolerated approach for patients with locally advanced gastric adenocarcinoma resulting in significant pathological CR and R0 resection margins as reflected by the good DFS and OS.

Egyptian Journal of Radiology and Nuclear Medicine, 2019

Background To assess the validity and accuracy of GI-RADS classification in the prediction of mal... more Background To assess the validity and accuracy of GI-RADS classification in the prediction of malignancy and in triaging the management protocol in ovarian lesions. Results One hundred fifty-six ovarian lesions were detected in the examined 116 women. The prevalence of malignant tumors was 44%. Overall GI-RADS classification rates were as follows: 41 cases (26.3%) were classified as GI-RADS 1, 26 cases (16 .7%) as GI-RADS 2, 34 cases (21.8%) as GI-RADS 3, 14 cases (8.9%) as GI-RADS 4, and 41 cases (26.3%) as GI-RADS 5. No follow-up was done in GI-RADS 1 patients. A final diagnosis of all GI-RADS 2 ovarian masses such as functional cyst (n = 10), hemorrhagic cysts (n = 8), corpus luteal cysts (n = 6), and some GI-RADS 3 as simple cysts (n = 10) was made by spontaneous resolution of these masses at follow-up after 6 weeks. Fifteen cases of GI-RADS 3 as mature teratoma, serous and mucinous cystadenoma, endometrioma, and ovarian torsion and all GI-RADS 4 and 5 underwent laparoscopic or ...

Journal of Cancer Therapy, 2018

Journal of Cancer Science & Therapy, 2017