Browsing by Author "Chu, Michael W."

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    Acute Febrile Neutrophilic Dermatosis after Deep Inferior Epigastric Perforator Flap Breast Reconstruction
    (KoreaMed Synapse, 2016-09) Chu, Michael W.; Cook, Julia A.; Hazen, Alexes; Department of Surgery, IU School of Medicine
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    Age at Diagnosis as a Relative Contraindication for Intervention in Facial Nonmelanoma Skin Cancer
    (American Medical Association, 2018-04-01) Chauhan, Ruvi; Munger, Brook N.; Chu, Michael W.; Munshi, Imtiaz; Cohen, Adam C.; Wooden, William A.; Tholpady, Sunil S.; Surgery, School of Medicine
    Facial nonmelanoma skin cancers (fNMSCs), consisting of basal cell carcinoma and squamous cell carcinoma, are the most common cancers diagnosed worldwide and increase with age. Standard treatment for fNMSCs requires biopsy for pathological confirmation, followed by excision. Excision can lead to a pathological diagnosis of no residual carcinoma (NRC) due to no identifiable carcinoma within the excisional specimen. This situation can occur owing to wound healing in the specimen clearing the carcinoma or to the original biopsy shaving off the entire lesion. This study assesses the utility of excising fNMSCs according to age, with the hypothesis that the indolent nature of fNMSCs and the high NRC rate, coupled with increasing age-related all-cause mortality, should cause the surgeon to counsel patients differently. Such counseling may prevent surgery among elderly patients (>90 years) who may never see a benefit from fNMSC excision.
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    Assessing the Necessity of Stopping Antithrombotic Agents Before Wide-Awake Hand Surgery
    (American Medical Association, 2018-03-01) Sasor, Sarah E.; Evans, Tyler A.; Cook, Julia A.; Lucich, Elizabeth A.; Wooden, William A.; Tholpady, Sunil S.; Chu, Michael W.; Surgery, School of Medicine
    This review of 304 carpal tunnel release procedures examines the necessity of stopping antithrombotic medications prior to carpal tunnel release surgery.
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    Comparison of Neurologic Trauma and Motorcycle Helmet Use in Drivers vs Passengers
    (American Medical Association, 2018-02-01) Evans, Tyler A.; Sasor, Sarah; Duquette, Stephen; Chu, Michael W.; Munshi, Imtiaz; Soleimani, Tahereh; Tholpady, Sunil S.; Medicine, School of Medicine
    This study compares postcrash prevalences of neurological and head and neck injuries in motorcycle drivers and passengers, stratified by helmet use.
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    Hand Surgery Resources Exceed American Health Literacy
    (SAGE, 2018-09) Cook, Julia A.; Sasor, Sarah E.; Tholpady, Sunil S.; Momeni, Arash; Chu, Michael W.; Otolaryngology -- Head and Neck Surgery, School of Medicine
    BACKGROUND: The National Institutes of Health, American Medical Association, and US National Library of Medicine recommend that educational material for patients be written at a sixth-grade reading level. The purpose of this study is to assess the complexity of hand surgery information on academic plastic and orthopedic surgery websites. METHODS: An online search was performed for all hand surgery patient education materials provided by institutions with plastic and orthopedic surgery training programs. Readability analyses were conducted using the Flesch-Kincaid Reading Ease, Flesch-Kincaid Grade Level, Simple Measure of Gobbledygook Index, Gunning Fog Score, Automated Readability Index, and Coleman-Liau Index. A 2-tailed z test was used to compare means. RESULTS: Seventy-six institutions with both plastic and orthopedic surgery training programs were identified; 42 had educational material available online. The average readability for all hand-related information was at the 11.92 grade reading level. Information regarding de Quervain tenosynovitis had the highest grade level for all plastic surgery procedures (13.45). Hand arthritis had the highest grade level for all orthopedic surgery procedures (12.82). Ganglion cysts had the lowest grade level for both plastic and orthopedic surgery (10.15 and 11.01, respectively; P = .12). Carpal tunnel release was the most commonly described procedure overall. There were no differences in text complexity among geographic regions. CONCLUSIONS: Online patient resources for common hand ailments are too complex for the average patient to understand. Efforts should be made to provide materials at the recommended sixth-grade reading level to improve patient education and improve the physician-patient relationship.
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    Non-Invasive Imaging of Preoperative Mapping of Superficial Veins in Free Flap Breast Reconstruction.
    (KSPRS, 2016-01) Chu, Michael W.; Sarik, Jonathon R.; Wu, Liza C.; Serletti, Joseph M.; Bank, Jonathan; Department of Surgery, IU School of Medicine
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    Omental Vascularized Lymph Node Flap: A Radiographic Analysis
    (Thieme, 2018-09) Cook, Julia A.; Sasor, Sarah E.; Tholpady, Sunil S.; Chu, Michael W.; Surgery, School of Medicine
    Background Vascularized lymph node transfer is an increasingly popular option for the treatment of lymphedema. The omental donor site is advantageous for its copious soft tissue, well-defined collateral circulation, and large number of available nodes, without the risk of iatrogenic lymphedema. The purpose of this study is to define the anatomy of the omental flap in the context of vascularized lymph node harvest. Methods Consecutive abdominal computed tomography angiography (CTA) images performed at a single institution over a 1-year period were reviewed. Right gastroepiploic artery (RGEA) length, artery caliber, lymph node size, and lymph node location in relation to the artery were recorded. A two-tailed Z-test was used to compare means. A Gaussian Mixture Model confirmed by normalized entropy criterion was used to calculate three-dimensional lymph node cluster locations along the RGEA. Results In total, 156 CTA images met inclusion criteria. The RGEA caliber at its origin was significantly larger in males compared with females (p < 0.001). An average of 3.1 (1.7) lymph nodes were present per patient. There was no significant gender difference in the number of lymph nodes identified. Average lymph node size was significantly larger in males (4.9 [1.9] × 3.3 [0.6] mm in males vs. 4.5 [1.5] × 3.1 [0.5] mm in females; p < 0.001). Three distinct anatomical variations of the RGEA course were noted, each with a distinct lymph node clustering pattern. Total lymph node number and size did not differ among anatomical subgroups. Conclusion The omentum is a reliable lymph node donor site with consistent anatomy. This study serves as an aid in preoperative planning for vascularized lymph node transfer using the omental flap.
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    Patient-Reported Outcomes and Factors Associated With Patient Satisfaction After Surgical Treatment of Facial Nonmelanoma Skin Cancer
    (American Medical Association, 2019-02-01) Sasor, Sarah E.; Cook, Julia A.; Loewenstein, Scott N.; Wooden, William A.; Cohen, Adam C.; Chu, Michael W.; Tholpady, Sunil S.; Surgery, School of Medicine
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    Response to “Letter to the editor: Predictors of internal mammary vessel diameter: A computed tomographic angiography-assisted anatomic analysis”, Madada-Nyakauru, et al.
    (Elsevier, 2018) Cook, Julia A.; Tholpady, Sunil S.; Momeni, Arash; Chu, Michael W.; Surgery, School of Medicine
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    Reversible abducens nerve palsy following cranial vault expansion in the setting of multisutural craniosynostosis: illustrative case
    (American Association of Neurological Surgeons, 2025-04-14) Ackerman, Laurie L.; Gerety, Patrick A.; Boente, Charline S.; Haider, Kathryn M.; Chu, Michael W.; Celie, Karel-Bart; Cordes, Emma J.; Tholpady, Sunil S.; Neurological Surgery, School of Medicine
    Background: Posterior cranial vault distraction osteogenesis (PVDO) is a commonly used cranial expansion procedure in infants and children with syndromic craniosynostosis. To date, there have been no reports of cranial nerve (CN) palsies in patients undergoing univector PVDO. Observations: In this article, the authors describe the case of a 27-month-old female with Muenke syndrome who underwent long-distance (> 30 mm) PVDO and developed bilateral abducens nerve (CN VI) palsy after 40 mm of distraction. Following partial reversal of the distraction during the activation phase, the authors observed complete resolution of this palsy. Lessons: This report demonstrates that CN palsies are a potential complication for which the patient should be monitored, even when undergoing univector PVDO. Most notably, this report illustrates that a gradual reduction in the distraction distance can result in complete resolution of a CN VI palsy while also maintaining a significant degree of intracranial expansion. https://thejns.org/doi/10.3171/CASE24762.