Ayman Zaki Azzam

Prof. Dr. Ayman Zaki Azzam

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Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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12 August 2014 in Renal Failure
Verified
Journal Article
Closed access
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HHHakeam Hakeam
Hakeam Hakeam
MBMohammed Breakiet
Mohammed Breakiet
AAAyman Zaki Azzam
Ayman Zaki Azzam
ANAshraf Nadeem
Ashraf Nadeem
TATarek Amin
Tarek Amin
Background: Cisplatin is commonly used in hyperthermic intraperitoneal chemotherapy (HIPEC) for the management of peritoneal carcinomatosis. Little is known about the nephrotoxic effects of cisplatin use in HIPEC. Objectives: To report the incidence of nephrotoxicity post-HIPEC using cisplatin 50 mg/m2 plus doxorubicin 15 mg/m2. The incidence of hypomagnesemia was investigated as a secondary endpoint. Methods: This is a retrospective study evaluating patients who received cisplatin with doxorubicin during HIPEC. RIFLE classification was used to assess the development of nephrotoxicity. Variables, such as comorbidities and nephrotoxic medications were obtained. Renal function parameters were also collected, including serum creatinine levels and serum magnesium levels at baseline and at days 3, 7 and 30 after HIPEC. Perioperative urine output (UO) was also recorded. Results: Fifty-three patients were identified. Based on the RIFLE classification, two patients (3.7%) developed acute kidney injury (AKI) following HIPEC with cisplatin. One patient met criteria for renal failure and progressed to chronic renal failure. The other patient had renal injury. Comparable mean creatinine levels were observed at baseline and on day 30 following HIPEC (p > 0.05). The incidence of hypomagnesemia increased to 24.5% by day 7 (p = 0.041) and 30.1% by day 30 (p < 0.001) following HIPEC. Low intraoperative UO, angiotensin II receptor antagonist use and hypertension were associated with development of AKI (p < 0.05). Conclusion: Nephrotoxicity can complicate HIPEC with cisplatin therapy and that permanent renal dysfunction may rarely occur. More attention to be directed toward monitoring magnesium levels after cisplatin use with HIPEC.

1 January 2015 in World Journal of Hepatology
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Journal Article
Open access
AAAyman Zaki Azzam
Ayman Zaki Azzam
Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide and has a poor prognosis if untreated. It is ranked the third among the causes of cancer-related death. There are multiple etiologic factors that can lead to HCC. Screening for early HCC is challenging due to the lack of well specific biomarkers. However, early diagnosis through successful screening is very important to provide cure rate. Liver transplantation (LT) did not gain wide acceptance until the mid-1980s, after the effective immunosuppression with cyclosporine became available. Orthotopic LT is the best therapeutic option for early, unresectable HCC. It is limited by both, graft shortage and the need for appropriate patient selection. It provides both, the removal of tumor and the remaining cirrhotic liver. In Milan, a prospective cohort study defined restrictive selection criteria known as Milan criteria (MC) that led to superior survival for transplant patients in comparison with any other previous experience with transplantation or other options for HCC. When transplantation occurs within the established MC, the outcomes are similar to those for nonmalignant liver disease after transplantation. The shortage of organs from deceased donors has led to the problems of long waiting times and dropouts. This has led to the adoption of extended criteria by many centers. Several measures have been taken to solve these problems including prioritization of patients with HCC, use of pretransplant adjuvant treatment, and living donor LT.

18 April 2016 in Journal of Parenteral and Enteral Nutrition
Verified
Journal Article
Closed access
HHHakeam Hakeam
Hakeam Hakeam
HMHamdy A. Mulia
Hamdy A. Mulia
AAAyman Zaki Azzam
Ayman Zaki Azzam
TATarek Amin
Tarek Amin

1 September 2014 in Hematology/Oncology and Stem Cell Therapy
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Journal Article
Open access
AAAhmed Abu-Zaid
Ahmed Abu-Zaid
AAAyman Zaki Azzam
Ayman Zaki Azzam
ZAZainab Abudan
Zainab Abudan
AAAmani Algouhi
Amani Algouhi
HAHadeel Almana
Hadeel Almana
TATarek Amin
Tarek Amin
VIPoma is an exceedingly unusual neuroendocrine neoplasm that autonomously secretes vasoactive intestinal polypeptide (VIP). Its reported incidence is approximately 1 per 10 million individuals per year. Herein, we report the case of sporadic pancreatic VIPoma in a 47-year-old male who presented with a six-month history of chronic, plentiful, watery diarrhea. On physical examination, the patient looked sick, lethargic and had signs of dehydration. Laboratory investigations revealed high VIP hormone level (989 pg/mL), hypokalemia, hypercalcemia, hyperglycemia, high blood urea nitrogen, high creatinine, and metabolic acidosis on arterial blood gas. Contrast-enhanced computed tomography (CT) scan showed a 3.1 × 3.3 × 4.7 cm, well-defined, enhancing lesion involving the pancreatic tail with a cystic component. Moreover, a 5.7 × 6.1 × 6.8 cm metastatic hepatic lesion was identified. The patient underwent distal pancreatectomy with splenectomy, hepatic lesion resection, and lymph node dissection. Histopathological and immunohistochemical examination of the pancreatic and hepatic lesions revealed neuroendocrine tumor (VIPoma). Postoperatively, the patient received radiofrequency ablation for the hepatic lesion. A post-operative six-month follow-up showed significant symptomatic relief, reduced VIP hormone level (71 pg/mL) and normalized electrolyte and acid-base profiles. However, a magnetic resonance imaging (MRI) scan showed a small residual metastatic liver lesion which was considered for hepatic artery embolization (HAE). The patient is still alive with a residual hepatic disease at 18 months. We also present a brief literature review on VIPoma.

1 March 2014 in Annals of Saudi Medicine
Verified
Journal Article
Open access
AAAhmed Abu-Zaid
Ahmed Abu-Zaid
AAAyman Zaki Azzam
Ayman Zaki Azzam
OAOsama AlOmar
Osama AlOmar
HSHany Salem
Hany Salem
TATarek Amin
Tarek Amin
IAIsmail A Al-Badawi
Ismail A Al-Badawi
Endometrial carcinoma is the most common gynecologic malignancy worldwide. Prognosis of patients with peritoneal carcinomatosis (PC) from endometrial carcinoma is deadly, with an estimated median survival not exceeding 12 months. The objective of this study was to report our experience with cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) for managing PC from primary and recurrent endometrial carcinoma. A retrospective analysis of 6 patients with PC arising from endometrial cancer, who were managed with CRS and HIPEC at our referral tertiary care center, from November 2010 to August 2013. Six patients underwent CRS and HIPEC. CRS was performed using standard peritonectomy procedures and visceral resections directed toward the complete elimination of tumors from abdominopelvic cavity. HIPEC was performed with cisplatin (50 mg/m2) and doxorubicin (15 mg/m2) and allowed to circulate in abdominopelvic cavity for 90 minutes at 41.0 to 42.2°C. Two patients with primary endometrial carcinoma and 4 patients with recurrent endometrial carcinoma confined to peritoneal cavity were studied. Complete cytoreduction (CC-0) was achieved in 5 patients. The International Federation of Gynecology and Obstetrics (FIGO) stages and histopathological types were as follows: IB endometrioid adenocarcinomas (n=1), IC mesonephric carcinomas (n=1), IIIA endometrioid adenocarcinomas (n=2), IIIA papillary serous carcinomas (n=1), and IIIC clear-cell carcinomas (n=1). Anastomotic leak (grade I) was the most commonly encountered postoperative complication. Two patients developed grade IV complications due to septicemia and pulmonary embolism. No intraoperative mortality occurred. Postoperatively, all patients received chemotherapy (carboplatin and paclitaxel). In 1 patient, the clear-cell carcinoma histologic lesion relapsed within 6 months; the metastases spread to hepatic, pelvic, and mesenteric lymph nodes, and the patient died 5 months later. One patient with cytoreduction completeness of CC-2 developed hepatic metastases within 3 months and is still alive at a follow-up up 6 months. Remaining patients (n=4) are alive and disease free without evidence of recurrence of follow-ups at 35, 34, 19, and 7 months. CRS and HIPEC are well-tolerated and feasibly promising management modalities in PC from primary and recurrent endometrial carcinoma. Further research is needed for in-depth analysis.

2 September 2014 in Journal of Obstetrics and Gynaecology Research
Verified
Journal Article
Closed access
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IAIsmail A Al-Badawi
Ismail A Al-Badawi
AAAhmed Abu-Zaid
Ahmed Abu-Zaid
AAAyman Zaki Azzam
Ayman Zaki Azzam
OAOsama AlOmar
Osama AlOmar
HAHamed AlHusaini
Hamed AlHusaini
TATarek Amin
Tarek Amin