Professor Ossama M Zakaria, MD, PhD, FRCS, M.Ch, D.CH, FICS - College of Medicine, Suez Canal University & King Faisal University - Professor

Professor Ossama M Zakaria

MD, PhD, FRCS, M.Ch, D.CH, FICS

College of Medicine, Suez Canal University & King Faisal University

Professor

Al Ahsaa, Eastern Province | Saudi Arabia

Main Specialties: Pediatric Surgery

Additional Specialties: Paediatric Surgery

Professor Ossama M Zakaria, MD, PhD, FRCS, M.Ch, D.CH, FICS - College of Medicine, Suez Canal University & King Faisal University - Professor

Professor Ossama M Zakaria

MD, PhD, FRCS, M.Ch, D.CH, FICS

Introduction

All are written on Research gate.

Primary Affiliation: College of Medicine, Suez Canal University & King Faisal University - Al Ahsaa, Eastern Province , Saudi Arabia

Specialties:

Additional Specialties:

Research Interests:

Publications

15Publications

497Reads

26Profile Views

5PubMed Central Citations

Operative management of non-iatrogenic pediatric and adolescence peripheral arterial trauma: An experience from a resource challenged setting.

Asian J Surg 2019 Jul 3;42(7):761-767. Epub 2018 Nov 3.

Divisions of Vascular Surgery, Pediatric Surgery, Emergency Medicine, General Surgery, Department of Surgery, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia.

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https://linkinghub.elsevier.com/retrieve/pii/S10159584183053
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http://dx.doi.org/10.1016/j.asjsur.2018.09.012DOI Listing
July 2019
52 Reads
0.760 Impact Factor

Implementing medical simulation in undergraduate teaching of toxicology.

January 2018 Journal of Punjab Academy of Forensic Medicine and Toxicology 18(2):58,

ISSN: 0972-5687

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January 2019
5 Reads

Patent Contralateral Processus Vaginalis in Infants and Children: Is Herniotomy Justified?

Authors:
Ossama M Zakaria

Oman Med J 2018 Nov;33(6):481-485

Department of Surgery, Division of Pediatric Surgery, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia.

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http://omjournal.org/articleDetails.aspx?coType=1&aId=23
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http://dx.doi.org/10.5001/omj.2018.89DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6206417PMC
November 2018
137 Reads

Laparoscopy as a Primary Investigatory Tool in Pediatric Abdominal Masses.

Gulf J Oncolog 2018 Sep;1(28):52-55

Division of Pediatric Surgery; Dept. of Surgery, College of Medicine, King Faisal University, Al-Ahsa, Kingdom of Saudi Arabia.

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September 2018
32 Reads

Reliability of sonoelastography in predicting pediatric cervical lymph node malignancy.

Pediatr Surg Int 2018 Aug 12;34(8):885-890. Epub 2018 Jul 12.

Departments of Pediatric Surgery, Surgery, Radiology, Pathology, College of Medicine, King Faisal University, Al-Ahsa, Saudi Arabia.

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http://link.springer.com/10.1007/s00383-018-4301-x
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http://dx.doi.org/10.1007/s00383-018-4301-xDOI Listing
August 2018
55 Reads
1.061 Impact Factor

Non-laparoscopic minimal surgical approach to pyloromyotomy: An experience from a challenged resource setting.

Authors:
Ossama M Zakaria

Afr J Paediatr Surg 2016 Oct-Dec;13(4):189-192

Division of Pediatric Surgery, Department of Surgery, College of Medicine, King Faisal University, Al Ahsa, KSA.

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http://dx.doi.org/10.4103/0189-6725.194672DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5154225PMC
September 2017
34 Reads

Efficacy of Different Protocols in Treatment of Nephroblastoma: A revisit.

Gulf J Oncolog. 2016 May;1(21):55-60. PMID: 27250889

BACKGROUND: Management of Nephroblastoma (NB) remains a subject of debate despite the fact that it ranked first among primary childhood's renal neoplasm. We have previously discussed this issue 13, 14, yet, the sample size was limited. AIM: The aim of this study was to further evaluate the efficacy of initial surgery in the treatment of stage II and III pediatric NB as a part of the short administration schedule as in National Wilms' Tumor Study (NWTS)-4 and to evaluate its effectiveness compared to the long administration schedule. PATIENTS AND METHODS: The study included 50 children who were primarily diagnosed as stage II and III NB. They were divided into 2 equal groups. Group I (n = 25) included children who have undergone neoadjuvant chemotherapy followed by surgery and postoperative chemotherapy, while group II (n = 25) included children who have undergone primary surgery as an initial management followed by chemotherapy. After a mean postoperative follow-up period of 20±6 months, clinical and radiological evaluation was performed to all patients. RESULTS: In group I, 15 patients were preoperatively diagnosed as stage II and 10 patients as stage III while in group II, 16 patients were proved to be stage II and 9 patients were stage III. After a follow up period, clinical and radiological evaluation using CT was performed to all patients. In patients with stage II, evidence of recurrence was noted in 5 patients of group I whereas no patient showed any evidence of recurrence in group II. In patients with stage III, rebound increase in size was seen in 3 patients in group I and only one patient in group II. CONCLUSIONS: This study confirmed our previous conclusions that initial surgical intervention with appropriate adjuvant therapy has a better outcome than the neoadjuvant chemotherapy and delayed surgery for children primarily diagnosed as stage II and III NB. Moreover, it may also act as a short administration schedule for the treatment as it is not less effective than the long administration schedule and can be administered at a substantially lower total treatment cost.

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May 2016
2 Reads

Conservative Treatment Versus Appendectomy for Acute Uncomplicated Appendicitis

The Journal of Surgery 4(2):27-30 DOI: 10.11648/j.js.s.2016040201.16

Background: For more than 100 years, surgeons have been successfully performing appendectomy to treat acute appendicitis. However; there is recent trend to shift towards a more conservative approach. This work aimed to assess the non-operative management in the treatment of acute uncomplicated appendicitis. Methods: One hundred and sixteen patients with uncomplicated acute appendicitis were enrolled into the study. They were divided into two groups (Group A & Group B). Patients in Group A were subjected to non-operative management with antibiotics while patients in Group B were subjected to appendectomy. All patients were evaluated at hospital discharge, at 30-days and at a median follow-up on year. The primary outcome was the success rate of the non-operative management. Secondary outcomes were the difference of length of hospitalization, time to return to normal activity, and quality-of-life measures between both groups. Results: The success rate of non-operative strategy was 93.3% (42 of 45) at hospital discharge, 88.8% (40 of 45) at 30-days and 82.2% (37 of 45) at a median follow-up of one year. Patients in Group A have a significantly shorter time to return to normal activities. They reported higher quality of life scores. The length of hospitalization was significantly shorter in Group B. Conclusion: Giving intravenous antibiotics to some patients with uncomplicated acute appendicitis instead of having them undergo surgery may be safe and effective.

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January 2016
3 Reads

Examination under anesthesia for management of impalpable undescended testis: a traditional technique revisited.

World J Surg 2013 May;37(5):1125-9

Division of Pediatric Surgery, Department of Surgery, College of Medicine, King Faisal University, Riyadh, Kingdom of Saudi Arabia.

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http://dx.doi.org/10.1007/s00268-013-1973-1DOI Listing
May 2013
33 Reads
1 Citation
2.642 Impact Factor

Parasitic infestation in pediatric and adolescent appendicitis: a local experience.

Oman Med J 2013 Mar;28(2):92-6

Division of Surgery, College of Medicine, King Faisal University, Al-Ahsa, Kingdom Saudi Arabia.

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http://dx.doi.org/10.5001/omj.2013.25DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3628191PMC
March 2013
19 Reads
4 Citations

Bowel function and fecal continence after Soave's trans-anal endorectal pull-through for Hirschsprung's disease: a local experience.

Authors:
Ossama M Zakaria

Updates Surg 2012 Jun 6;64(2):113-8. Epub 2012 Mar 6.

Department of Surgery, Suez Canal University, Ismailia, Egypt.

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http://dx.doi.org/10.1007/s13304-012-0140-9DOI Listing
June 2012
126 Reads

Tubularized incised plate technique for recurrent hypospadias: a local experience from Egypt

1687-4137c2012 Annals of Pediatric Surgery , DOI: 10.1097/01.XPS.0000414831.81168.f7

d Objectives To evaluate our local experience of tubularized incised plate (TIP) repair (Snodgrass method) in the management of recurrent hypospadias. Summary background data TIP repair has been well described for use in salvage hypospadias repairs, with good results. Patients and methods This prospective, descriptive study was carried out over a period of 5 years from December 2003 to December 2008. The study included 30 patients; all of these patients had previously undergone hypospadias repair, and the indication for surgery was complete failure of the previous repair. Classic TIP repair was performed, although tissues for barrier layers between the neourethra and skin closures were not as readily available. Results Secondary TIP repair was successful in 25/30 patients (83.3%). These patients showed no postoperative complications and had a slit-like meatus and a forwarddirected urinary stream without branching. Their parents were satisfied with the repair results. Conclusion Our local experience coincides with data of the literature that TIP is an excellent option in the treatment of recurrent hypospadias when the results of primary techniques are unsatisfactory. Ann Pediatr Surg 8:80–85 c 2012 Annals of Pediatric Surgery.1, 2,

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March 2012
3 Reads

The biological effect of phthalate esters on transabdominal migration of the testis in fetal rats in comparison with the antiandrogen flutamide.

Pediatr Surg Int. 2001 Mar;17(2-3):164-6.

Phthalate esters are commonly used as plasticizers for polyvinyl chloride and are known to be hormone-disrupting chemicals. We previously reported that mono-n-butyl phthalate (MBP) administered to rat fetuses induced cryptorchidism postnatally. The aim of this study was to investigate the biological effect of MBP on the transabdominal migration of the testis in prenatal rats by comparing this with the prenatal effect of the antiandrogen flutamide on testicular descent. Time-pregnant Wistar King A rats were divided into three groups: group I rats (N = 3) were administered MBP 0.3 g/day by gavage from gestational days 15 to 18; group II rats (N = 3) were injected with flutamide (30 mg/day) from gestational days 15 to 18; group III rats (N = 3) were administered solvent as controls. On the 19th gestational day, all rats underwent a cesarean section and the male fetuses were dissected to examine the position of the testis, which was significantly higher in the abdominal cavity in the MBP-treated rats than in either the flutamide-treated or control rats. No significant difference was observed in the position of the testis between the flutamide-treated and control rat fetuses. Our findings suggest that maternal MBP prevented transabdominal migration of the testis in prenatal rats, which may not have been due to either an antiandrogenic or estrogenic effect of MBP, but to a direct toxic effect of MBP on the testis.

PMID:
 
11315278

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March 2001
2 Reads

Non-laparoscopic minimal surgical approach to pyloromyotomy: An experience from a challenged resource setting

Afr J Paediatr Surg. 2016 Oct-Dec;13(4):189-192. doi: 10.4103/0189-6725.194672.

bstract

BACKGROUND:

The aim of the study is to review the experience with the classic Ramstedt's pyloromyotomy through the RUQ approach and the circumlinear supraumbilical fold approach (circumumbilical [CU]) pyloromyotomy (an approach that combines the ease and safety of the open pyloromyotomy with the advantages of minimal invasiveness).

PATIENTS AND METHODS:

A single centre review in a period of 12 years from January 2001 to December 2013 with the institutional ethical committee's approval, evaluating 316 pyloromyotomies based on surgical approach: RUQ (171); and CU (145). Patients' demographics, acid-base/electrolyte status on presentation, mean operative time (MOT), postoperative length of stay (LOS) at hospital, and complications were recorded.

RESULTS:

Patients demographics, acid - base/electrolyte status on presentation; and MOT were not significantly different. The median LOS was 33 and 30 minutes for CU and RUQ, respectively, with no statistical significant difference between the two groups. One patient in the CU group had a late adhesive bowel obstruction requiring laparotomy and bowel resection. Moreover, wound infection rates did not differ significantly between the two groups (CU 3; and RUQ; 3; P = 0.15).

CONCLUSIONS:

Pyloromyotomy is associated with a low complication rate. Cosmetically, CU is superior to the RUQ approach. Its short learning curve and the feasibility to examine the integrity of the duodenal mucosa intraoperatively may make CU a safer alternative in case of surgeons who are still practicing the RUQ approach in countries with a challenged resource settings.

PMID:
 
28051049
 
PMCID:
 
PMC5154225
 
DOI:
 
10.4103/0189-6725.194672

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November -0001
5 Reads