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  1. Book ; Thesis: Hämodynamische Veränderungen nach hypothermem Kreislaufstillstand im Vergleich zu kontinuierlichem "Low-Flow-Bypass" bei Aortenbogenoperationen mit Verwendung der extrakorporalen Zirkulation

    Omar Mahmoud, Nora

    eine tierexperimentelle In-Vivo-Studie an 26 männlichen Jungferkeln

    2010  

    Author's details vorgelegt von Nora Omar Mahmoud
    Language German
    Size 66 S. : Ill., zahlr. graph. Darst.
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Erlangen, Nürnberg, Univ., Diss., 2010
    HBZ-ID HT016661898
    Database Catalogue ZB MED Medicine, Health

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    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    2011 E 161 order for loan Magazin

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  2. Article ; Online: Class III malocclusion treated with a 3D-printed hybrid hyrax distalizer combined with mentoplate using Alt-RAMEC protocol: A case report.

    Kathem, Sarah Joda / Matras, Rannvá Caroline / Abbas, Salaheddin Omar Mahmoud

    Journal of orthodontics

    2023  , Page(s) 14653125231184910

    Abstract: Introduction: The aim of this report was to assess the skeletal, dental and soft tissue changes in a juvenile patient with a severe class III malocclusion. This case report describes a novel method of class III treatment using skeletal anchorage for ... ...

    Abstract Introduction: The aim of this report was to assess the skeletal, dental and soft tissue changes in a juvenile patient with a severe class III malocclusion. This case report describes a novel method of class III treatment using skeletal anchorage for maxillary protraction and Alt-RAMEC protocol.
    Patient concerns: The patient did not have any subjective complaints before treatment and there was no family history of class III malocclusion.
    Clinical findings and primary diagnoses: Extra-orally, the patient had a concave profile with a retrusive mid-face and prominent lower lip. The intra-oral examination revealed angle class III malocclusion with a -3-mm overjet. There was no anterior displacement on closure when the patient was assessed clinically. According to the cephalometric analysis, the sagittal jaw relation and Wits appraisal were reduced due to a retrognathic maxilla and prognathic mandible.
    Interventions: The treatment plan involved maxillary protraction, Alt-RAMEC protocol for 10 weeks and upper molar distalisation with a hybrid hyrax distalizer in combination with a mentoplate. The active treatment time was estimated to 18 months followed by 6 months retention with the appliance.
    Outcomes: The sagittal jaw relationship was increased by approximately 9°, mainly due to maxillary advancement of 8 mm and a positional change of the mandible anteroposteriorly. Natural decompensation of the lower incisors was also observed. In addition, both the facial profile and the smile became more harmonious after treatment. The treatment analysis revealed that the changes achieved were mainly skeletal and it was possible to avoid adverse effects on the dentition.
    Conclusion: In conclusion, treatment with a hybrid hyrax distalizer combined with mentoplate using the Alt-RAMEC protocol is effective in correcting the anteroposterior discrepancy in a juvenile class III patient and it is possible to achieve maxillary advancement of 8 mm.
    Language English
    Publishing date 2023-06-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 2011954-9
    ISSN 1465-3133 ; 0301-228X ; 1465-3125
    ISSN (online) 1465-3133
    ISSN 0301-228X ; 1465-3125
    DOI 10.1177/14653125231184910
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 952: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  3. Article ; Online: Addressing Diverse Petroleum Industry Problems Using Machine Learning Techniques

    Adel M. Salem / Mostafa S. Yakoot / Omar Mahmoud

    ACS Omega, Vol 7, Iss 3, Pp 2504-

    Literary MethodologySpotlight on Predicting Well Integrity Failures

    2022  Volume 2519

    Keywords Chemistry ; QD1-999
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher American Chemical Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Transient Receptor Potential Channels and Itch

    Omar Mahmoud / Georgia Biazus Soares / Gil Yosipovitch

    International Journal of Molecular Sciences, Vol 24, Iss 1, p

    2022  Volume 420

    Abstract: Transient Receptor Potential (TRP) channels are multifunctional sensory molecules that are abundant in the skin and are involved in the sensory pathways of itch, pain, and inflammation. In this review article, we explore the complex physiology of ... ...

    Abstract Transient Receptor Potential (TRP) channels are multifunctional sensory molecules that are abundant in the skin and are involved in the sensory pathways of itch, pain, and inflammation. In this review article, we explore the complex physiology of different TRP channels, their role in modulating itch sensation, and their contributions to the pathophysiology of acute and chronic itch conditions. We also cover small molecule and topical TRP channel agents that are emerging as potential anti-pruritic treatments; some of which have shown great promise, with a few treatments advancing into clinical trials—namely, TRPV1, TRPV3, TRPA1, and TRPM8 targets. Lastly, we touch on possible ethnic differences in TRP channel genetic polymorphisms and how this may affect treatment response to TRP channel targets. Further controlled studies on the safety and efficacy of these emerging treatments is needed before clinical use.
    Keywords transient receptor potential channel ; TRP channel ; TRPV ; TRPA ; TRPC ; TRPM ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 003
    Language English
    Publishing date 2022-12-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Valsalva retinopathy in a teenager treated with Nd:YAG laser posterior hyaloidotomy.

    Solyman, Omar Mahmoud / Ghalwash, Ahmed Abdelfatah

    The Pan African medical journal

    2021  Volume 38, Page(s) 161

    Language English
    Publishing date 2021-02-12
    Publishing country Uganda
    Document type Journal Article
    ZDB-ID 2514347-5
    ISSN 1937-8688 ; 1937-8688
    ISSN (online) 1937-8688
    ISSN 1937-8688
    DOI 10.11604/pamj.2021.38.161.28100
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Green and inventive fluorescence approach for levodropropizine determination in human plasma.

    Mostafa, Islam M / Omar, Mahmoud A / Ahmed Elsayed, Mohamed / Almaghrabi, Mohammed / Mohamed, Abobakr A

    Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

    2024  Volume 312, Page(s) 124060

    Abstract: A green, rapid and sensitive fluorimetric method to quantify levodropropizine (LVP) in human plasma was exploited for the first time. The proposed method adopts LVP's intrinsic fluorescence in distilled water at a detecting emission of 345 nm following ... ...

    Abstract A green, rapid and sensitive fluorimetric method to quantify levodropropizine (LVP) in human plasma was exploited for the first time. The proposed method adopts LVP's intrinsic fluorescence in distilled water at a detecting emission of 345 nm following excitation at 240 nm. LVP displayed linearity across concentrations ranging from 50 to 1000 ng mL
    MeSH term(s) Humans ; Spectrometry, Fluorescence/methods ; Reproducibility of Results ; Fluorometry ; Plasma ; Tablets ; Propylene Glycols
    Chemical Substances dipropizine (U0K8WHL37U) ; Tablets ; Propylene Glycols
    Language English
    Publishing date 2024-02-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 210413-1
    ISSN 1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
    ISSN (online) 1873-3557
    ISSN 0370-8322 ; 0584-8539 ; 1386-1425
    DOI 10.1016/j.saa.2024.124060
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    In stock of ZB MED Bonn / Germany

    Z 51/98: Show issues
    Z 1611 a: Show issues
    924/340: Show issues

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  7. Article ; Online: Novel Torque and Drag Model for Drilling Two-Dimensional High-Angle Wells

    Muhammad Nour / Ahmed A. Elgibaly / Mohamed S. Farahat / Omar Mahmoud

    ACS Omega, Vol 7, Iss 14, Pp 12374-

    2022  Volume 12389

    Keywords Chemistry ; QD1-999
    Language English
    Publishing date 2022-04-01T00:00:00Z
    Publisher American Chemical Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Terlipressin and albumin: The good, the bad, and the unattractive (with apologies to Sergio Leone).

    Omar, Mahmoud / Hussaini, Trana / Yoshida, Eric M

    Canadian liver journal

    2021  Volume 4, Issue 3, Page(s) 340–342

    Language English
    Publishing date 2021-08-09
    Publishing country Canada
    Document type Journal Article
    ISSN 2561-4444
    ISSN (online) 2561-4444
    DOI 10.3138/canlivj-2021-0010
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  9. Article: Escaping sestamibi detection: a case report of aggressive and recurrent metastatic parathyroid carcinoma.

    Freeman, Meredith N / Omar, Mahmoud / Shama, Mohamed / Kandil, Emad

    Gland surgery

    2022  Volume 11, Issue 6, Page(s) 1111–1118

    Abstract: Background: Parathyroid carcinoma is exceedingly rare. This cancer does not metastasize in a predictable manner and has in fact been noted to spread both hematogenously and lymphatically. There are currently no cases in the literature that report ... ...

    Abstract Background: Parathyroid carcinoma is exceedingly rare. This cancer does not metastasize in a predictable manner and has in fact been noted to spread both hematogenously and lymphatically. There are currently no cases in the literature that report metastasis to a contralateral level II lymph node.
    Case description: We report a case of recurrent parathyroid carcinoma in which the patient underwent several surgeries for right-sided parathyroid carcinoma and hyperparathyroidism, including 2 redo parathyroidectomies, 4 neck dissections, and auto transplantation and re-excision of the autotransplanted tissue. Almost a decade after initial surgery, parathyroid hormone (PTH) levels rose significantly, but nuclear medicine (NM) sestamibi scan, positron emission tomography-computed tomography (PET-CT), and ultrasound (US) could not identify the source of recurrent disease. Finally, neck US revealed a suspicious contralateral level II lymph node; fine needle aspiration (FNA) of the lymph node revealed parathyroid tissue, and PTH aspirate noted an elevated PTH washout. After left lateral neck dissection, pathology confirmed recurrent metastatic parathyroid carcinoma, and serum calcium and PTH levels improved. This case was further complicated by chronic kidney disease and pT1N0M0 colon cancer, all before the age of 45.
    Conclusions: In cases where a sestamibi scan is not able to localize a metastatic focus in a patient with known parathyroid carcinoma, FNA and PTH washout are important secondary studies.
    Language English
    Publishing date 2022-06-13
    Publishing country China (Republic : 1949- )
    Document type Case Reports
    ZDB-ID 3016969-0
    ISSN 2227-8575 ; 2227-684X
    ISSN (online) 2227-8575
    ISSN 2227-684X
    DOI 10.21037/gs-22-9
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  10. Article: Radiofrequency ablation of an intrathyroidal parathyroid adenoma with intraoperative parathyroid hormone monitoring: a case report of a novel technique.

    Kandil, Emad / Haidari, Muhib / Issa, Peter P / Omar, Mahmoud / Shama, Mohamed

    Gland surgery

    2023  Volume 12, Issue 5, Page(s) 704–709

    Abstract: Background: Primary hyperparathyroidism (PHPT) is classically treated by conventional parathyroidectomy, an open neck surgery. Radiofrequency ablation (RFA) has been shown as a safe minimally-invasive alternative to parathyroidectomy for the management ... ...

    Abstract Background: Primary hyperparathyroidism (PHPT) is classically treated by conventional parathyroidectomy, an open neck surgery. Radiofrequency ablation (RFA) has been shown as a safe minimally-invasive alternative to parathyroidectomy for the management of PHPT and has been shown to be effective in 60-90% of cases. Here, we present a patient successfully treated for persistent PHPT by RFA with simultaneous intraoperative parathyroid hormone (IOPTH) monitoring.
    Case description: A 51-year-old female with a past medical history of resistant hypertension, hyperlipidemia, and vitamin D deficiency presented to our endocrine surgery clinic with PHPT. Neck ultrasound (US) localized a 0.79 cm lesion suggestive of a parathyroid adenoma. Parathyroid exploration resulted in the excision of two masses. IOPTH levels dropped from 259.9 to 204.7 pg/mL. No ectopic parathyroid tissue was found. Three-month follow-up demonstrated elevated calcium levels, suggesting persistent disease. A repeat neck US one-year post operation localized a suspicious hypoechoic sub-centimeter thyroid nodule, which was subsequently determined to be an intrathyroidal parathyroid adenoma. The patient elected to proceed with RFA with IOPTH monitoring, citing concern for increased risk of redo open neck surgery. Operation pursued without complication and IOPTH levels dropped from 270 to 39.1 pg/mL. The patient's only three-day post-operative complaints, occasional numbness and tingling, were completely resolved by her three-month follow up. The patient had normal PTH and calcium levels at seven months post-operation visit and was without complaint.
    Conclusions: To our best knowledge, this is the first reported case of RFA with IOPTH monitoring used to manage a parathyroid adenoma. Our work adds to the growing literature suggesting minimally-invasive techniques, such as RFA with IOPTH, as a potential management option for treating parathyroid adenomas.
    Language English
    Publishing date 2023-04-14
    Publishing country China (Republic : 1949- )
    Document type Case Reports
    ZDB-ID 3016969-0
    ISSN 2227-8575 ; 2227-684X
    ISSN (online) 2227-8575
    ISSN 2227-684X
    DOI 10.21037/gs-22-733
    Database MEDical Literature Analysis and Retrieval System OnLINE

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