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2019
Kotb, M. A., A. F. Hamza, H. Abd El Kader, M. El Monayeri, D. S. Mosallam, N. Ali, C. W. S. Basanti, H. Bazaraa, H. A. Rahman, M. M. Nabhan, et al., "Combined liver-kidney transplantation for primary hyperoxaluria type I in children: Single Center Experience.", Pediatric transplantation, vol. 23, issue 1, pp. e13313, 2019 02. Abstract

Primary hyperoxalurias are rare inborn errors of metabolism with deficiency of hepatic enzymes that lead to excessive urinary oxalate excretion and overproduction of oxalate which is deposited in various organs. Hyperoxaluria results in serious morbid-ity, end stage kidney disease (ESKD), and mortality if left untreated. Combined liver kidney transplantation (CLKT) is recognized as a management of ESKD for children with hyperoxaluria type 1 (PH1). This study aimed to report outcome of CLKT in a pediatric cohort of PH1 patients, through retrospective analysis of data of 8 children (2 girls and 6 boys) who presented by PH1 to Wadi El Nil Pediatric Living Related Liver Transplant Unit during 2001-2017. Mean age at transplant was 8.2 ± 4 years. Only three of the children underwent confirmatory genotyping. Three patients died prior to surgery on waiting list. The first attempt at CLKT was consecutive, and despite initial successful liver transplant, the girl died of biliary peritonitis prior to scheduled renal transplant. Of the four who underwent simultaneous CLKT, only two survived and are well, one with insignificant complications, and other suffered from abdominal Burkitt lymphoma managed by excision and resection anastomosis, four cycles of rituximab, cyclophosphamide, vincristine, and prednisone. The other two died, one due to uncontrollable bleeding within 36 hours of procedure, while the other died awaiting renal transplant after loss of renal graft to recurrent renal oxalosis 6 months post-transplant. PH1 with ESKD is a rare disease; simultaneous CLKT offers good quality of life for afflicted children. Graft shortage and renal graft loss to oxalosis challenge the outcome.

M.A., K., Elmahdy H.N., M. F., Shaker C.W., Refaey M.A., and R. K.W.Y., "Recognition of Heart Murmur Based on Machine Learning and Visual Based Analysis of Phonocardiography.", Intelligent Computing. SAI 2018. Advances in Intelligent Systems and Computing,: Springer, Cham, 2019.
Kotb, M. A., I. Draz, C. W. Basanti, S. T. El Sorogy, H. M. Abd Elkader, H. Esmat, H. Abd El Baky, and D. S. Mosallam, "Cholestasis In Infants With Down Syndrome Is Not Due To Extrahepatic Biliary Atresia: A Ten-Year Single Egyptian Centre Experience.", Clinical and experimental gastroenterology, vol. 12, pp. 401-408, 2019. Abstract

Purpose: We aimed to define the clinical presentations, course and outcome of cholestasis in infants with Down syndrome (trisomy 21) who presented to the Pediatric Hepatology Clinic, New Children Hospital, Cairo University, Egypt.

Methods: Retrospective analysis of data of cohort of infants with Down syndrome and cholestasis who followed up during 2005-2015.

Results: Among 779 infants with cholestasis who presented during 2005-2015, 61 (7.8%) had Down syndrome. Six dropped out. Among the 55 who followed-up for a mean duration +SD = 12.1 ± 16.7 months, none had extrahepatic biliary atresia (EHBA), 37 (63.3%) had neonatal hepatitis and 18 (32.7%) had non-syndromic paucity of intrahepatic biliary radicals. Fourteen (25.4%) had associated congenital heart disease. Only 35 (63.3%) cleared the jaundice. Twenty-nine (52.7%) received ursodeoxycholic acid (UDCA); of them, 13 cleared the jaundice, one improved, 14 progressed and one died, compared to 22 who cleared the jaundice of the 26 who did not receive UDCA. Only three of those who did not receive UDCA progressed and none died. UDCA carried a 3.4-fold risk of poor prognosis (= 0.001). UDCA use was associated with more complications (= 0.016) in those with Down syndrome and cholestasis.

Conclusion: We did not come across EHBA among neonates and infants with Down syndrome in 10 years. Non-syndromic paucity is associated with favorable outcome in infants with Down syndrome. UDCA use in cholestasis with Down syndrome is associated with poor outcome.

Kotb, M. A., L. Mansour, and R. A. Shamma, "Screening for galactosemia: is there a place for it?", International Journal of General Medicine, vol. 12, pp. 193–205, 2019. 23-may-2019-ijgm-180706-screening-for-galactosemia-is-there-a-place-for-it-.pdf
2018
Kotb, M. A., L. Mansour, C. W. S. Basanti, W. Elgarf, G. I. Z. Ali, S. T. Mostafa El Sorogy, I. E. M. Kamel, and N. M. Kamal, "Pilot study of classic galactosemia: Neurodevelopmental impact and other complications urge neonatal screening in Egypt.", Journal of advanced research, vol. 12, pp. 39-45, 2018 Jul. Abstract

Classic galactosemia is caused by deficiency of galactose-1-phosphate uridylyltransferase (GALT). It causes serious morbidity and mortality if left untreated. Screening for galactosemia is not included in Egyptian neonatal screening program. The study aimed to define clinical presentation and complications of galactosemia at Pediatric Hepatology Clinic, Cairo University, Egypt. Thus, the clinical presentation, course and outcome of 37 children with documented galactosemia was studied. Jaundice was the main presentation (67.6%). Other presentations included; convulsions (29.7%), motor retardation (24.3%), mental retardation (5.4%), microcephaly (5.4%), failure to thrive (16.2%), hepatomegaly (62.2%), splenomegaly (35.1%), vomiting (16.2%), diarrhea (8.1%), liver cell failure (10.8%), renal tubular acidosis (5.4%), cataract (5.4%), autoimmune hepatitis (2.7%), self-mutilation (2.7%), combined immune deficiency (2.7%) and kernicterus (2.7%). There was no correlation of residual enzyme activity to severity, clinical presentation, liver function tests, liver biopsy findings or outcome apart from highly significant correlation with repeated chest infections ( = 0.001). Duration to diagnosis and exposure to galactose in diet correlated with liver pathology severity i.e. hepatocyte necrosis ( = 0.003) and cytoskeleton damage ( = 0.003), but not to outcome. Galactosemia should be suspected in any child with liver, neurologic disease and/or immunodeficiency. Its complications are potentially preventable. Early detection is mandatory to prevent serious morbidity and mortality. Initiation of neonatal screening for galactosemia in Egypt is recommended.

Marwa Geith, Ayman A. El-Badry, E. Y. Abu-Sarea, and Magd A. Kotb, "Intestinal Parasitosis and Pediatric Hepatic Disease: Corproscopy and Immuno Molecular Assays", Journal of the Egyptian Society of Parasitology , vol. 48, issue 2, pp. 475-480, 2018.
2017
Soliman, N. A., M. M. Nabhan, S. M. Abdelrahman, H. Abdelaziz, R. Helmy, K. Ghanim, H. M. Bazaraa, A. M. Badr, O. A. Tolba, M. A. Kotb, et al., "Clinical spectrum of primary hyperoxaluria type 1: Experience of a tertiary center.", Nephrologie & therapeutique, vol. 13, issue 3, pp. 176-182, 2017 May. Abstract

BACKGROUND AND AIM: Primary hyperoxalurias are rare inborn errors of metabolism resulting in increased endogenous production of oxalate that leads to excessive urinary oxalate excretion. Diagnosis of primary hyperoxaluria type 1 (PH1) is a challenging issue and depends on diverse diagnostic tools including biochemical analysis of urine, stone analysis, renal biopsy, genetic studies and in some cases liver biopsy for enzyme assay. We characterized the clinical presentation as well as renal and extrarenal phenotypes in PH1 patients.

METHODS: This descriptive cohort study included patients with presumable PH1 presenting with nephrolithiasis and/or nephrocalcinosis (NC). Precise clinical characterization of renal phenotype as well as systemic involvement is reported. AGXT mutational analysis was performed to confirm the diagnosis of PH1.

RESULTS: The study cohort included 26 patients with presumable PH1 with male to female ratio of 1.4:1. The median age at time of diagnosis was 6 years, nevertheless the median age at initial symptoms was 3 years. Thirteen patients (50%) were diagnosed before the age of 5 years. Two patients had no symptoms and were diagnosed while screening siblings of index patients. Seventeen patients (65.4%) had reached end-stage renal disease (ESRD): 6/17 (35.3%) during infancy, 4/17 (23.5%) in early childhood and 7/17 (41.29%) in late childhood. Two patients (7.7%) had clinically manifest extra renal (retina, heart, bone, soft tissue) involvement. Mutational analysis of AGXT gene confirmed the diagnosis of PH1 in 15 out of 19 patients (79%) where analysis had been performed. Fifty percent of patients with maintained renal functions had projected 10 years renal survival.

CONCLUSION: PH1 is a heterogeneous disease with wide spectrum of clinical, imaging and functional presentation. More than two-thirds of patients presented prior to the age of 5 years; half of them with the stormy course of infantile PH1. ESRD was the commonest presenting manifestation in two-thirds of our cohort.

Kotb, M. A., Abd El Satar I, Badr AM, A. N, Ismail HA, Hamza AF, and A. E. K. H. M, "Pulmonary Hypertension and Cardiac Hypertrophy in Children Recipients of Orthotopic Living Related Liver Transplantation", Journal of Advanced Research, vol. 8, pp. 663-668, 2017. pulmonary_hypertension_post_liver_transplant_.pdf
2016
Kotb, M. A., H. N. Elmahdy, F. E. Mostafa, E. M. Falaki, C. W. Shaker, M. A. Refaey, and K. W. Y. Rjoob, "Improving the Recognition of Heart Murmur", International Journal of Advanced Computer Science and Applications, vol. 7, issue 7, pp. 283-287, 2016.
Kotb, M. A., A. E. E. Satar, A. M. Badr, N. H. Anis, and A. F. Hamza, "Tacrolimus associated symptomatic cardiac hypertrophy and pulmonary hypertension is reversible in children recipients of orthotopic living related liver transplantation", Archives of Disease in Childhood, vol. 101, issue supplement, 2016.
2015
Kotb, M. A., "EXTRAHEPATIC BILIARY ATRESIA; KOTB DISEASE IS POTENTIALLY PREVENTABLE", Excellence in Pediatrics Conference, London, UK, December, 2015.
Kotb, M. A., "Aflatoxins in Infants with Extrahepatic Biliary Atresia", Med. J. Cairo Univ., vol. 83, issue March 1, pp. 207-210,, 2015. Aflatoxins in Infants with Extrahepatic Biliary Atresia
Marwa A. Ghieth, Magd A. Kotb, Enas Y. Abu-Sarea, and A. A. El-Badry, "Molecular detection of giardiasis among children at Cairo University Pediatrics Hospitals", Journal of Parasitic Diseases, issue 10.1007/s12639-015-0714-9, 2015.
Kotb, M. A., Elmahdy H.N., Khalifa N., Hamed M., and Lotfi M.A., "Pediatric Online Evidence-Based Medicine Assignment Is a Novel Effective Enjoyable Undergraduate Medical Teaching Tool: A SQUIRE Compliant Study.", Medicine, vol. 94, issue 29, pp. 1178, 2015. Website
2014
2012
Kotb, M. A., "Molecular mechanisms of ursodeoxycholic Acid toxicity & side effects: ursodeoxycholic Acid freezes regeneration & induces hibernation mode.", International journal of molecular sciences, vol. 13, issue 7, pp. 8882-914, 2012. Abstract

Ursodeoxycholic acid (UDCA) is a steroid bile acid approved for primary biliary cirrhosis (PBC). UDCA is reported to have "hepato-protective properties". Yet, UDCA has "unanticipated" toxicity, pronounced by more than double number of deaths, and eligibility for liver transplantation compared to the control group in 28 mg/kg/day in primary sclerosing cholangitis, necessitating trial halt in North America. UDCA is associated with increase in hepatocellular carcinoma in PBC especially when it fails to achieve biochemical response (10 and 15 years incidence of 9% and 20% respectively). "Unanticipated" UDCA toxicity includes hepatitis, pruritus, cholangitis, ascites, vanishing bile duct syndrome, liver cell failure, death, severe watery diarrhea, pneumonia, dysuria, immune-suppression, mutagenic effects and withdrawal syndrome upon sudden halt. UDCA inhibits DNA repair, co-enzyme A, cyclic AMP, p53, phagocytosis, and inhibits induction of nitric oxide synthatase. It is genotoxic, exerts aneugenic activity, and arrests apoptosis even after cellular phosphatidylserine externalization. UDCA toxicity is related to its interference with drug detoxification, being hydrophilic and anti-apoptotic, has a long half-life, has transcriptional mutational abilities, down-regulates cellular functions, has a very narrow difference between the recommended (13 mg/kg/day) and toxic dose (28 mg/kg/day), and it typically transforms into lithocholic acid that induces DNA strand breakage, it is uniquely co-mutagenic, and promotes cell transformation. UDCA beyond PBC is unjustified.

HOSNI, H. N., M. M. Kamel, M. A. Kotb, and M. GHEITH, "Histopathological Study of Upper Gastrointestinal Tract for Helicobacter Pylori and Giardiasis in Egyptian Children", Med. J. Cairo Univ., vol. 80, issue 1, pp. 283-291, 2012.
2009
Kotb, M. A., "Ursodeoxycholic acid in neonatal hepatitis and infantile paucity of intrahepatic bile ducts: review of a historical cohort.", Digestive diseases and sciences, vol. 54, issue 10, pp. 2231-41, 2009 Oct. Abstract

We retrospectively reviewed the role of ursodeoxycholic acid in infants having nonsurgical cholestasis attending the Hepatology Clinic, New Children Hospital, Cairo University, Egypt, from 1985 until 2005. Files of 496 infants with neonatal hepatitis and 97 with intrahepatic bile duct paucity were included; of them 241 (48.6%) and 52 (46.4%) received 20-40 mg/kg/day ursodeoxycholic acid for 319.2 +/- 506.9 days and 480.3 +/- 583.3 days, respectively. The outcome of infants with neonatal hepatitis with intake of ursodeoxycholic acid and those without was: 108 (44.8%) and 179 (70.2%) successful (P = 0.000), 11 (4.6%) and 13 (5.1%) improved (P = 0. 474), 112 (46.5%) and 61 (23.9%) suffered failed outcome (P = 0.000), and 10 (4.1%) and 2 (0.78%) died (P = 0.014), respectively. Likelihood of successful outcome with ursodeoxycholic acid intake was 0.345 (P = 0.000), and that of deterioration was 2.76 (P = 0.000). For those having intrahepatic bile duct paucity likelihood of successful outcome with ursodeoxycholic acid intake was 0.418 (P = 0.040) and that of deterioration was 2.64 (P = 0.028). Ursodeoxycholic acid failed in management of this cohort of infants with nonsurgical cholestasis.

2008
Kotb, M. A., "Review of historical cohort: ursodeoxycholic acid in extrahepatic biliary atresia.", Journal of pediatric surgery, vol. 43, issue 7, pp. 1321-7, 2008 Jul. Abstract

BACKGROUND: Ursodeoxycholic acid is a bile acid that was found to increase bile flow, protect hepatocytes, and dissolve gallstones.

PURPOSE: The objective of this study is to review ursodeoxycholic acid in infants and children with extrahepatic biliary atresia.

METHODS: We used a statistical analysis of data of records of infants and children having extrahepatic biliary atresia who underwent Kasai portoenterostomy and attended Hepatology Clinic, New Children's Hospital, Cairo University, Egypt, from May 1985 until June 2005.

RESULTS: Of 141 infants with extrahepatic biliary atresia, 108 received ursodeoxycholic acid for mean duration +/- SD of 252.6 +/- 544.9 days in a dosage of 20 mg/kg per day. The outcome of infants who did not receive ursodeoxycholic acid and those who did was the following: 8 (24.2%) and 11 (10.18%) had a successful outcome (P = .043), 0 (0%) and 7 (6.4%) improved (P = .148), 25 (75.7%) and 84 (77.7%) had a failed outcome (P = .489), and none vs 5 died (4.6%) (P = .135), respectively. The predictors of successful outcomes were age less than 65 days at portoenterostomy (P = .008) and absence of ursodeoxycholic acid intake (P = .04) with a likelihood of a successful outcome that was 2.8, that associated with ursodeoxycholic acid intake.

CONCLUSION: In this cohort of infants with extrahepatic biliary atresia, ursodeoxycholic acid was not shown to be effective, and its use was associated with a plethora of hepatic and extrahepatic complications.

2007
Kotb, M. A., and H. A. K. Abdalla, "Musculoskeletal and neurological affection associated with neonatal and infantile cholestasis: Review of a historical cohort (1985-2005). ", The Egyptian Rheumatologist , vol. 29, issue 1, pp. 475-489, 2007.
Kotb, M. A., E. M. Hawary, S Mansour S, W. Lotfi, S. Shaker, S Okasha, M Isa, M Aziz M, and S. Talaat, "Protein C activity, protein S, antithrombin III, factor V leiden (Q506) mutation and methylene tetrahydrofolate reductase 677-T polymorphism in children with hepatic veno-occlusive disease.", Alexandria Journal of Pediatrics , vol. 21, issue 3, pp. 451-455, 2007.
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