Ian M. Humphreys

Nasal Packing with Strips of Cured Pork as Treatment for Uncontrollable Epistaxis in a Patient with Glanzmann Thrombasthenia

Objectives: Glanzmann thrombasthenia is a rare disorder of platelet function that may result in life-threatening hemorrhage, particularly from the nasal vaults. Various medical therapies (such as recombinant factor VII, antifibrinolytic agents, and blood transfusions) and surgical therapies (such as nasal packing, electrocautery, laser coagulation, septoplasty, and embolization) have been described with various degrees of success. Methods: We present a unique case report of a 4-year-old child with known Glanzmann thrombasthenia and two separate episodes of life-threatening epistaxis that were treated successfully by nasal packing with strips of cured pork because of special circumstances. Results: Cured salted pork crafted as a nasal tampon and packed within the nasal vaults successfully stopped nasal hemorrhage promptly, effectively, and without sequelae. In both applications, the patient had complete cessation of nasal bleeding within 24 hours, and was discharged within 72 hours after treatment. Conclusions: To our knowledge, this represents the first description of nasal packing with strips of cured pork for treatment of life-threatening hemorrhage in a patient with Glanzmann thrombasthenia.

Manuka honey sinus irrigation for the treatment of chronic rhinosinusitis: a randomized controlled trial

Manuka honey (MH) has been shown in vitro to be effective against biofilm‐producing bacteria. This study assessed the effectiveness of MH for patients with active chronic rhinosinusitis (CRS) and prior sinus surgery.

Automated Surgical Approach Planning for Complex Skull Base Targets: Development and Validation of a Cost Function and Semantic At-las:

Successful multidisciplinary treatment of skull base pathology requires precise preoperative planning. Current surgical approach (pathway) selection for these complex procedures depends on an individual surgeon’s experiences and background training. Because of anatomical variation in both normal tissue and pathology (eg, tumor), a successful surgical pathway used on one patient is not necessarily the best approach on another patient. The question is how to define and obtain optimized patient-specific surgical approach pathways? In this article, we demonstrate that the surgeon’s knowledge and decision making in preoperative planning can be modeled by a multiobjective cost function in a retrospective analysis of actual complex skull base cases. Two different approaches— weighted-sum approach and Pareto optimality—were used with a defined cost function to derive optimized surgical pathways based on preoperative computed tomography (CT) scans and manually designated pathology. With the first method, surgeon’s preferences were input as a set of weights for each objective before the search. In the second approach, the surgeon’s preferences were used to select a surgical pathway from the computed Pareto optimal set. Using preoperative CT and magnetic resonance imaging, the patient-specific surgical pathways derived by these methods were similar (85% agreement) to the actual approaches performed on patients. In one case where the actual surgical approach was different, revision surgery was required and was performed utilizing the computationally derived approach pathway.

Skills transfer to sinus surgery via a low-cost simulation-based curriculum: Skills transfer to sinus surgery

Surgical skill development outside the operating room aims to improve technique and subsequent patient safety. The purpose of this study was to evaluate the correlation between technical and cognitive skills with cadaveric endoscopic sinus surgery (ESS) performance and change in ESS performance before and after implementation of a dedicated ESS simulation‐based and knowledge‐based curriculum.

A multi-institutional review of outcomes in biopsy-proven acute invasive fungal sinusitis: Outcomes With IFS

Acute invasive fungal sinusitis (AIFS) is a rare, aggressive infection occurring in immunocompromised patients. In this study we examined factors that affect survival in AIFS, and whether immune‐stimulating therapies (IST) improve survival.

Bilateral Transorbital and Transnasal Endoscopic Resection of a Frontal Sinus Osteoblastoma and Orbital Mucocele: A Case Report and Review of the Literature

Objective: Describe a novel treatment approach to a rare bony neoplasm in the frontal sinus. Study Design: Case report. Methods: Retrospective chart review of an osteoblastoma of the frontal sinuses complicated by a right orbital mucocle. Demographic, endoscopic, radiographic, pathologic, and surgical data were collected for synthesis and review. MEDLINE, Embase, and Cochrane databases were searched from 1977 to 2017 to review publications of surgical management of frontal sinus neoplasms. Results: A single female patient with a large frontal sinus osteoblastoma was successfully treated with a bilateral transorbital and transnasal approach. The right orbital mucocele was marsupialized into the frontal sinus. Gross total resection of the tumor was achieved, with complete resolution of the presurgical morbidity. The surgery was tolerated well without iatrogenic injury or sequela. Conclusion: Frontal sinus osteoblastoma is a rare condition. Complete surgical excision is considered curative. Various endoscopic and open approaches have been described. Here we show the feasibility and efficacy of a multiportal strategy in the successful management of a large frontal sinus osteoblastoma complicated by a right orbital mucocele.

Anatomical Region Segmentation for Objective Surgical Skill Assessment with Operating Room Motion Data

Background Most existing objective surgical motion analysis schemes are limited to structured surgical tasks or recognition of motion patterns for certain categories of surgeries. Analyzing instrument motion data with respect to anatomical structures can break the limit, and an anatomical region segmentation algorithm is required for the analysis. Methods An atlas was generated by manually segmenting the skull base into nine regions, including left/right anterior/posterior ethmoid sinuses, frontal sinus, left and right maxillary sinuses, nasal airway, and sphenoid sinus. These regions were selected based on anatomical and surgical significance in skull base and sinus surgery. Six features, including left and right eye center, nasofrontal beak, anterior tip of nasal spine, posterior edge of hard palate at midline, and clival body at foramen magnum, were used for alignment. The B‐spline deformable registration was adapted to fine tune the registration, and bony boundaries were automatically extracted for final precision improvement. The resultant deformation field was applied to the atlas, and the motion data were clustered according to the deformed atlas. Results Eight maxillofacial computed tomography scans were used in experiments. One was manually segmented as the atlas. The others were segmented by the proposed method. Motion data were clustered into nine groups for every dataset and outliers were filtered. Conclusions The proposed algorithm improved the efficiency of motion data clustering and requires limited human interaction in the process. The anatomical region segmentations effectively filtered out the portion of motion data that are out of surgery sites and grouped them according to anatomical similarities.