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  1. Article ; Online: Coronavirus disease 2019-The principles of the curve, explained simply.

    Jozaghi, Yelda

    Head & neck

    2020  Volume 42, Issue 7, Page(s) 1539–1542

    Abstract: In the setting of the coronavirus disease 2019 pandemic, the concept of the disease curve has become ubiquitous in medicine and across society. Nevertheless, even among medical specialists, there are common misconception about the curve and how it ... ...

    Abstract In the setting of the coronavirus disease 2019 pandemic, the concept of the disease curve has become ubiquitous in medicine and across society. Nevertheless, even among medical specialists, there are common misconception about the curve and how it affects population outcomes. This article provides a simple review of the various population dynamics at play. Principles such as the area under the curve and the threshold of capacity are discussed and simply conceptualized. Understanding the fundamental characteristics of a problem can allow us to see it with more clarity. By the end of the article, the reader will gain an effortless a sense of insight on this topic.
    MeSH term(s) Area Under Curve ; Betacoronavirus ; COVID-19 ; Coronavirus Infections/diagnosis ; Coronavirus Infections/epidemiology ; Coronavirus Infections/therapy ; Epidemiologic Measurements ; Humans ; Pandemics ; Pneumonia, Viral/diagnosis ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/therapy ; SARS-CoV-2 ; Surge Capacity
    Keywords covid19
    Language English
    Publishing date 2020-06-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 645165-2
    ISSN 1097-0347 ; 0148-6403 ; 1043-3074
    ISSN (online) 1097-0347
    ISSN 0148-6403 ; 1043-3074
    DOI 10.1002/hed.26289
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Coronavirus disease 2019-The principles of the curve, explained simply

    Jozaghi, Yelda

    Head Neck

    Abstract: In the setting of the coronavirus disease 2019 pandemic, the concept of the disease curve has become ubiquitous in medicine and across society. Nevertheless, even among medical specialists, there are common misconception about the curve and how it ... ...

    Abstract In the setting of the coronavirus disease 2019 pandemic, the concept of the disease curve has become ubiquitous in medicine and across society. Nevertheless, even among medical specialists, there are common misconception about the curve and how it affects population outcomes. This article provides a simple review of the various population dynamics at play. Principles such as the area under the curve and the threshold of capacity are discussed and simply conceptualized. Understanding the fundamental characteristics of a problem can allow us to see it with more clarity. By the end of the article, the reader will gain an effortless a sense of insight on this topic.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #457356
    Database COVID19

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  3. Article ; Online: Functional Outcomes and Quality of Life in Patients with Sinonasal, Nasopharyngeal, and Anterior Skull Base Tumors.

    Jozaghi, Yelda / Phan, Jack / Hanna, Ehab Y / Kupferman, Michael E / Su, Shirley Y

    Current oncology reports

    2022  Volume 24, Issue 6, Page(s) 775–781

    Abstract: Purpose of review: This article will review functional and QOL outcomes among patients treated predominantly for sinonasal and nasopharyngeal malignancies.: Recent findings: Treatment advances and interdisciplinary supportive care help to lessen the ... ...

    Abstract Purpose of review: This article will review functional and QOL outcomes among patients treated predominantly for sinonasal and nasopharyngeal malignancies.
    Recent findings: Treatment advances and interdisciplinary supportive care help to lessen the functional impairments and the reduction in quality of life (QOL) that were once accepted as inevitable tradeoffs for cure. Recent progress in QOL and Patient-Reported Outcome (PRO) instruments for this population will be covered. Sinonasal and nasopharyngeal tumors affect patients' quality of life, appearance, and critical functions. Tumors arise in proximity of vital structures including the orbit, cranial nerves, carotid artery, brain, cervical spine, and pituitary gland. Surgical morbidity, along with acute and late effects of systemic therapy and radiotherapy on normal tissues in this functionally critical region, may result in wide-ranging symptoms. Patients with skull base tumors report a high symptom burden at presentation, prior to treatment, relative to other malignancies in the head and neck region.
    MeSH term(s) Endoscopy ; Humans ; Nasopharyngeal Neoplasms/therapy ; Quality of Life ; Skull Base Neoplasms/radiotherapy ; Treatment Outcome
    Language English
    Publishing date 2022-03-15
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2057359-5
    ISSN 1534-6269 ; 1523-3790
    ISSN (online) 1534-6269
    ISSN 1523-3790
    DOI 10.1007/s11912-022-01214-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Simultaneous Scalp, Skull, Kidney, and Pancreas Transplant from a Single Donor: Insights from a 5-Year Follow-Up.

    Jozaghi, Yelda / Chang, Edward I / Clemens, Mark W / Hanasono, Matthew M / Klebuc, Michael / Yu, Peirong / Gaber, A Osama / Selber, Jesse C

    Plastic and reconstructive surgery

    2023  Volume 151, Issue 6, Page(s) 1318–1321

    Abstract: Summary: This report provides a 5-year follow-up on the first reported simultaneous scalp, calvarium, kidney, and pancreas transplant. The previously published case report represented both the first composite calvarial-scalp transplant and combination ... ...

    Abstract Summary: This report provides a 5-year follow-up on the first reported simultaneous scalp, calvarium, kidney, and pancreas transplant. The previously published case report represented both the first composite calvarial-scalp transplant and combination of a vascularized composite allotransplantation with double organ transplantation. Over the ensuing 5 years, the patient underwent a single episode of acute scalp rejection successfully managed with intravenous Solu-Medrol, one resection of a basal cell carcinoma on the native scalp, hardware removal, and bony contouring. In addition, the patient developed seizures secondary to delayed, postirradiation cerebral necrosis requiring craniotomy and resection. His seizures were ultimately controlled. Currently, more than 5 years after his multiorgan transplant, the patient continues to have excellent allograft function and a very satisfactory aesthetic outcome, demonstrating that in certain cases, combined vascularized composite allotransplantation with solid organ transplantation can be performed safely without compromising the solid organ transplantation.
    MeSH term(s) Humans ; Scalp/surgery ; Pancreas Transplantation ; Follow-Up Studies ; Skull ; Kidney ; Graft Rejection/pathology
    Language English
    Publishing date 2023-05-24
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 208012-6
    ISSN 1529-4242 ; 0032-1052 ; 0096-8501
    ISSN (online) 1529-4242
    ISSN 0032-1052 ; 0096-8501
    DOI 10.1097/PRS.0000000000010103
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Establishing Orbital Floor Symmetry to Support Mirror Imaging in Computer-Aided Reconstruction of the Orbital Floor.

    Jozaghi, Yelda / Chan, Harley H L / Davies, Joel C / Irish, Jonathan C

    The Journal of craniofacial surgery

    2019  Volume 30, Issue 6, Page(s) 1888–1890

    Abstract: Background: Surgical precision in the reconstruction of the orbital floor is crucial to functional visual and aesthetic outcomes. Increasingly, computer-aided design is being utilized to aid in precise preoperative planning by using the mirror images of ...

    Abstract Background: Surgical precision in the reconstruction of the orbital floor is crucial to functional visual and aesthetic outcomes. Increasingly, computer-aided design is being utilized to aid in precise preoperative planning by using the mirror images of the unaffected side. The authors aim to use 3-dimensional (3D) quantitative analysis to establish whether the native orbital floor topography is sufficiently symmetric to support this practice.
    Methods: Ten high resolution head and neck computed tomography scans of patients without periorbital pathology were obtained. These were imported into a 3D medical image processing software and segmented to isolate bilateral orbital floors. Each native orbital floor was compared to the mirror image of the contralateral side by conformance map computation. Data collection included measures of 25% and 75% quartile, median, mean, standard deviation, and root-mean-square (RMS).
    Results: The topographic analysis demonstrated a high degree of topographic conformance with a mean RMS of 0.58 ± 0.37 mm. Further volumetric analysis comparing the total orbital volume between each side also demonstrates a high degree of volumetric symmetry with a mean difference of 0.55 mL (P = 0.30).
    Conclusion: Comparison of the native orbital floor and the mirror image of the contralateral side by conformance map computation and volumetric analysis demonstrated a high degree of morphologic similarity. The native orbital floor topography provides optimal symmetry to support mirror imaging techniques used in orbital floor reconstruction.
    MeSH term(s) Computer-Aided Design ; Humans ; Image Processing, Computer-Assisted/methods ; Imaging, Three-Dimensional/methods ; Orbit/diagnostic imaging ; Orbit/surgery ; Reconstructive Surgical Procedures/methods ; Software ; Tomography, X-Ray Computed/methods
    Language English
    Publishing date 2019-11-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1159501-2
    ISSN 1536-3732 ; 1049-2275
    ISSN (online) 1536-3732
    ISSN 1049-2275
    DOI 10.1097/SCS.0000000000005368
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Ultrasound-guided maxillary nerve block: an anatomical study using the suprazygomatic approach.

    Echaniz, Gaston / Chan, Vincent / Maynes, Jason T / Jozaghi, Yelda / Agur, Anne

    Canadian journal of anaesthesia = Journal canadien d'anesthesie

    2019  Volume 67, Issue 2, Page(s) 186–193

    Abstract: Purpose: Although a maxillary nerve (MN) block reportedly provides satisfactory analgesia for midface surgery and chronic maxillofacial pain syndromes, a safe and reliable MN block technique has not been reported. The goal of this anatomical study was ... ...

    Title translation Bloc du nerf maxillaire échoguidé : une étude anatomique de l’approche supra-zygomatique.
    Abstract Purpose: Although a maxillary nerve (MN) block reportedly provides satisfactory analgesia for midface surgery and chronic maxillofacial pain syndromes, a safe and reliable MN block technique has not been reported. The goal of this anatomical study was to quantify the various angles and depth of the block needle, as well as to evaluate the impact of volume on the extent of injectate spread that might influence anesthetic coverage and block-related complications.
    Methods: Following an ultrasound-guided suprazygomatic MN block with dye injection, a dissection was performed in the pterygopalatine fossa (PPF) of four lightly embalmed cadaveric specimens. Half of the specimens were injected with 5 mL of dye, and the other half with 1 mL of dye. The needle depth was measured from the ultrasound images and using rubber markers. Following injection, dissection was performed to map the area of dye spread.
    Results: The median [interquartile range (IQR)] distance from the skin to the PPF was 37 [36-43] mm and 47 [40-50] mm by ultrasound and rubber marker methods, respectively. The median [IQR] needle orientation was 14 [11-32] degrees inferiorly and 15 [10-17] degrees posteriorly. The PPF was consistently dyed in the 5 mL group, but sporadically dyed in the 1 mL group. In the 5 mL group, spread outside of the PPF was seen.
    Conclusions: We showed that 5 mL of injectate far exceeds the capacity of the PPF, leading to drug spread outside of the PPF. Moreover, we found that 1 mL of injectate largely covered the nerve, suggesting a more efficacious and safer block procedure. This finding will need confirmation in future clinical studies.
    MeSH term(s) Anesthesia, Conduction ; Cadaver ; Humans ; Maxillary Nerve/anatomy & histology ; Maxillary Nerve/diagnostic imaging ; Nerve Block ; Ultrasonography, Interventional
    Language English
    Publishing date 2019-09-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 91002-8
    ISSN 1496-8975 ; 0832-610X
    ISSN (online) 1496-8975
    ISSN 0832-610X
    DOI 10.1007/s12630-019-01481-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: The combined profunda artery perforator-gracilis flap for immediate facial reanimation and resurfacing of the radical parotidectomy defect.

    Yao, Christopher M K / Jozaghi, Yelda / Danker, Sara / Karami, Reem / Asaad, Malke / Lai, Stephen Y / Hanna, Ehab Y / Esmaeli, Bita / Gidley, Paul W / Chang, Edward I

    Microsurgery

    2022  Volume 43, Issue 4, Page(s) 309–315

    Abstract: Background: A radical parotidectomy with facial nerve sacrifice results in facial nerve paralysis as well as a volume and often cutaneous defect. Prior experience with nerve grafting and static suspension has yielded suboptimal results. The present ... ...

    Abstract Background: A radical parotidectomy with facial nerve sacrifice results in facial nerve paralysis as well as a volume and often cutaneous defect. Prior experience with nerve grafting and static suspension has yielded suboptimal results. The present report aims to examine the feasibility and outcomes of a combined free gracilis and profunda artery perforator (PAP) flap from a single donor site can reconstruct these extensive defects and potentially restore dynamic facial reanimation even in the setting of adjuvant radiation.
    Patients and methods: A retrospective review of 10 patients (6 males and 4 females) was performed from 2016 to 2020 that underwent a combined PAP-gracilis reconstruction of a radical parotidectomy defect. All patients (mean age: 71.3 years; range: 52-83 years) received adjuvant radiation. A chimeric PAP-gracilis flap requiring a single microvascular anastomosis was performed in three patients while the remaining patients underwent a double free flap reconstruction.
    Results: The gracilis flap was innervated using the facial nerve stump, spinal accessory and massecteric nerve in three patients each. One patient's gracilis was innervated using the hypoglossal nerve. Three patients also underwent nerve grafting of the facial nerve. One patient was taken back to the operating room for a hematoma in the recipient site and there were not flap losses of either the PAP or gracilis flap. Two patients had delayed wound healing of the donor site that healed with conservative management. Average follow-up was 11.1 months (range: 8.1-19.5 months). Six patients were able to achieve dynamic animation while the others obtained a static reconstruction and did not have issues with drooling, eating, or speaking.
    Conclusions: Immediate functional muscle transfer can potentially restore dynamic facial reanimation even following radiation. Combining reconstruction using a PAP-gracilis flap addresses the soft tissue deficit and facial paralysis using a single donor site in a single operation.
    MeSH term(s) Male ; Female ; Humans ; Aged ; Plastic Surgery Procedures ; Facial Paralysis/surgery ; Perforator Flap/surgery ; Facial Nerve/surgery ; Arteries/surgery
    Language English
    Publishing date 2022-12-21
    Publishing country United States
    Document type Case Reports
    ZDB-ID 605524-2
    ISSN 1098-2752 ; 0738-1085
    ISSN (online) 1098-2752
    ISSN 0738-1085
    DOI 10.1002/micr.30997
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Overview of COVID-19 testing and implications for otolaryngologists.

    Vinh, Daniel B / Zhao, Xiao / Kiong, Kimberley L / Guo, Theresa / Jozaghi, Yelda / Yao, Chris / Kelley, James M / Hanna, Ehab Y

    Head & neck

    2020  Volume 42, Issue 7, Page(s) 1629–1633

    Abstract: Background: Testing for SARS-CoV-2 is important for decision making prior to surgery in otolaryngology. An understanding of current and developing testing methods is important for interpreting test results.: Methods: We performed a literature review ... ...

    Abstract Background: Testing for SARS-CoV-2 is important for decision making prior to surgery in otolaryngology. An understanding of current and developing testing methods is important for interpreting test results.
    Methods: We performed a literature review of current evidence surrounding SARS-CoV-2 diagnostic testing highlighting its utility, limitations, and implications for otolaryngologists.
    Results: The currently accepted RT-PCR test for SARS-CoV-2 has varying sensitivity according to which subsite of the aerodigestive tract is sampled. Nasal swab sensitivities appear to be about 70%. Chest CT imaging for screening purposes is not currently recommended.
    Conclusion: Due to the current sensitivity of RT-PCR based testing for SARS-CoV-2, a negative test cannot rule out COVID-19. Full PPE should be worn during high-risk procedures such as aerosol generating procedures even if testing is negative. Patients who test positive during screening should have their surgeries postponed if possible until asymptomatic and have tested negative for SARS-CoV-2.
    MeSH term(s) Antibodies/blood ; Betacoronavirus/genetics ; COVID-19 ; COVID-19 Testing ; Clinical Laboratory Techniques ; Coronavirus Infections/diagnosis ; Cough/virology ; Diarrhea/virology ; Dyspnea/virology ; Fatigue/virology ; Fever/virology ; Headache/virology ; Hemoptysis/virology ; Humans ; Immunoglobulin G/immunology ; Immunoglobulin M/immunology ; Lung/diagnostic imaging ; Myalgia/virology ; Nasopharynx/virology ; Otorhinolaryngologic Surgical Procedures ; Pandemics ; Pneumonia, Viral/diagnosis ; Preoperative Care ; Quarantine ; RNA, Viral/isolation & purification ; Reverse Transcriptase Polymerase Chain Reaction ; SARS-CoV-2 ; Sputum/virology ; Tomography, X-Ray Computed
    Chemical Substances Antibodies ; Immunoglobulin G ; Immunoglobulin M ; RNA, Viral
    Keywords covid19
    Language English
    Publishing date 2020-05-12
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 645165-2
    ISSN 1097-0347 ; 0148-6403 ; 1043-3074
    ISSN (online) 1097-0347
    ISSN 0148-6403 ; 1043-3074
    DOI 10.1002/hed.26213
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Overview of COVID ‐19 testing and implications for otolaryngologists

    Vinh, Daniel B. / Zhao, Xiao / Kiong, Kimberley L. / Guo, Theresa / Jozaghi, Yelda / Yao, Chris / Kelley, James M. / Hanna, Ehab Y.

    Head & Neck

    2020  Volume 42, Issue 7, Page(s) 1629–1633

    Keywords Otorhinolaryngology ; covid19
    Language English
    Publisher Wiley
    Publishing country us
    Document type Article ; Online
    ISSN 1043-3074
    DOI 10.1002/hed.26213
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Analysis of simulated mandibular reconstruction using a segmental mirroring technique.

    Davies, Joel C / Chan, Harley H L / Jozaghi, Yelda / Goldstein, David P / Irish, Jonathan C

    Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery

    2018  Volume 47, Issue 3, Page(s) 468–472

    Abstract: Purpose: When deforming pathology limits intraoperative plating of the mandible, three-dimensional (3D) models can be generated by digitally replacing the deformed segment of bone with an inverted segment from the contralateral unaffected mandible to ... ...

    Abstract Purpose: When deforming pathology limits intraoperative plating of the mandible, three-dimensional (3D) models can be generated by digitally replacing the deformed segment of bone with an inverted segment from the contralateral unaffected mandible to adapt a reconstruction plate. The purpose of this study was to use 3D conformance analysis to evaluate the degree of accuracy of this "segmental mirroring" technique.
    Methods: Using a pre-existing melanoma database (January 1, 2005-September 20, 2015), high-resolution computed tomography (CT) scans of the head and neck were obtained from patients without evidence of bony disease or defects involving the mandible. Using 3D software (Mimics, Materialise, Leuven, Belgium), each mandible was segmented based on four defect classes (Ic, II, IIc and III) of the Brown et al. (2016) classification system. An inverted, or "mirrored", image of each segment was digitally created and manually co-registered with the corresponding contralateral segment of the mandible. Conformance analysis was performed by calculating the root-mean-square (RMS) conformance distance and through evaluating 3D generated conformance maps. The primary outcome was degree of conformance. Data were analyzed using descriptive statistics and tests of statistical significance. The significance level was set at a p-value less than or equal to .05.
    Results: A high degree of conformance (mean RMS < 1 mm) was observed when comparing all classes of simulated reconstruction. The closest conformance was observed for class III simulated reconstructions (mean RMS: 0.4 ± 0.2 mm). Inclusion of the condyle resulted in a reduced mean RMS conformance (class II: 0.5 ± 0.3 mm vs class IIc: 0.7 ± 0.5 mm; p = 0.01). There was no significant difference between RMS conformance distances when comparing side of simulated reconstruction. Evaluation of 3D mapping demonstrated reduced conformance with simulated reconstruction of the condyle and coronoid process.
    Conclusion: The segmental mirroring technique can be used reliably to generate highly accurate three-dimensional models that may assist with mandibular reconstruction in circumstances where bony deformity limits intraoperative adaptation of a reconstruction plate. This technique is less accurate where pathology involves the mandibular condyle and, to a lesser degree, the coronoid process.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Bone Plates ; Computer Simulation ; Cross-Sectional Studies ; Dental Models ; Female ; Humans ; Imaging, Three-Dimensional ; Male ; Mandible/diagnostic imaging ; Mandible/surgery ; Mandibular Reconstruction/methods ; Middle Aged ; Retrospective Studies ; Software ; Tomography, X-Ray Computed
    Language English
    Publishing date 2018-12-30
    Publishing country Scotland
    Document type Journal Article
    ZDB-ID 91267-0
    ISSN 1878-4119 ; 1010-5182 ; 0301-0503
    ISSN (online) 1878-4119
    ISSN 1010-5182 ; 0301-0503
    DOI 10.1016/j.jcms.2018.12.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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