Publications by authors named "Alex Campbell"

A 38-year-old pregnant patient was managed by the cardio-obstetrics multidisciplinary team for severe degenerative bioprosthetic aortic valve failure. She was medically managed utilizing echocardiogram and brain natriuretic peptide until she demonstrated worsening heart failure. A valve and cardio-obstetrics team evaluation led to valve-in-valve transcatheter aortic valve replacement at 30 weeks' gestation.

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Background: Despite the wide range of cleft lip morphology, consistent scales to categorize preoperative severity do not exist. Machine learning has been used to increase accuracy and efficiency in detection and rating of multiple conditions, yet it has not been applied to cleft disease. The authors tested a machine learning approach to automatically detect and measure facial landmarks and assign severity grades using preoperative photographs.

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Unlabelled: Cosmetic surgery is at the forefront of an exploding medical tourism industry. Patients are able to research options globally through the internet, and increasing numbers are seeking improved service, quality, and value through surgery overseas. Little work has been done to measure the patient experience when traveling for surgery and, to our knowledge, this is the largest study of its kind to examine patient satisfaction with medical tourism.

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The rate of mechanical complications of acute myocardial infarction has declined. Recent publications raised concerns over the reduction in cardiac catheterization laboratory activation for ST-segment myocardial infarction (STEMI) during the coronavirus disease-2019 (COVID-19) pandemic. We present 2 recent cases of ventricular septal rupture in patients who presented to our institution with delayed STEMI.

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Background: In the United States, over-testing and over-treatment are recognised causes of excess cost and patient harm. Healthcare value, defined as health outcomes achieved relative to the costs of care, has become a focus to improve the quality and affordability of healthcare.

Aim: To describe the rationale for, and development of a standardised clinical preoperative decision-support tool.

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Aim: To highlight the growing cost of electric-scooter (e-scooter) related injuries necessitating surgical intervention by the Auckland City Hospital Orthopaedic Department.

Methods: Retrospective audit of operations by the Auckland City Hospital Orthopaedic Department from 15 October 2018 up to and inclusive of 22 February 2019. Inclusion criteria was that the direct cause of injury necessitating surgery was secondary to an e-scooter accident.

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Objectives: Imipenem/relebactam, an investigational β-lactam/β-lactamase inhibitor combination for treatment of Gram-negative infections, and comparators including ceftazidime/avibactam, piperacillin/tazobactam and colistin were tested for activity against representative carbapenemase-producing Enterobacteriaceae (CPE) isolates.

Methods: MICs of the antimicrobial agents were determined using standard broth microdilution methodology for CPE isolates collected from Indiana patients, primarily during the time frame of 2013-17 (n = 199 of a total of 200 isolates). Inhibitors were tested at 4 mg/L in all combinations.

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Background: Although efforts to improve access to care for patients with cleft lip in the developing world have grown tremendously, there is a dearth of data regarding aesthetic outcomes after cleft lip repairs in this setting. Defining severity-outcome relationships has the potential to improve efficiency of care delivery in resource-limited settings, and to improve overall results. In this study, we investigate the relationship between initial cleft lip severity and early aesthetic outcomes following surgical repair of primary unilateral cleft lip.

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Objective: In patients with suspected acute coronary syndrome (ACS), troponin testing is effective for diagnosis and prognosis. Troponin testing has now expanded to include patients without suspected ACS. This nonselective troponin testing has unknown consequences for resource utilization and outcome.

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Objective: To evaluate complication rates following cleft lip and cleft palate repairs during the transition from mission-based care to center-based care in a developing region.

Patients And Design: We performed a retrospective review of 3419 patients who underwent cleft lip repair and 1728 patients who underwent cleft palate repair in Guwahati, India between December 2010 and February 2014. Of those who underwent cleft lip repair, 654 were treated during a surgical mission and 2765 were treated at a permanent center.

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Background: Severity of the primary unilateral cleft lip/nose deformity (UCL/N) is postulated to play a key role in postoperative complications, aesthetic result, and need for secondary surgery. There is no validated and widely accepted classification scheme of initial cleft severity. The purpose of this study was to validate the Unilateral Cleft Lip Cleft Severity Index as a reliable tool for evaluating presurgical UCL/N deformity by both surgeons and laypersons.

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Background: A standardized evaluation tool is needed for the assessment of surgical outcomes in cleft lip surgery. Current scales for evaluating unilateral cleft lip/nose (UCL/N) aesthetic outcomes are limited in their reliability, ease of use, and application. The Unilateral Cleft Lip Surgical Outcomes Evaluation (UCL SOE) scale measures symmetry of 4 components and sums these for a total score.

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Background: The unmet burden of surgical disease represents a major global health concern, and a lack of trained providers is a critical component of the inadequacy of surgical care worldwide. Competency-based training has been advanced in high-income countries, improving technical skills and decreasing training time, but it is poorly understood how this model might be applied to low- and middle-income countries. We describe the development of a competency-based program to accelerate specialty training of in-country providers in cleft surgery techniques.

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Context: Grout, tile and floor stone sealants contain a solvent, a water-repelling agent and in the case of aerosols a propellant. The water-repelling agent used is typically a fluoropolymer resin, a silicon-based resin, or a combination of both.

Objective: To report the clinical course in patients exposed to fluoropolymer-containing sealants referred to the United Kingdom National Poisons Information Service.

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Background: The emphasis on cultural competency for physicians and surgeons is increasingly important, as communication with both patients and other providers significantly affects individual and system-wide outcomes. International surgical training has been shown to improve leadership skills, cultural competency, and technical proficiency of participants in short-term follow-up. This study explores the long-term impact of international surgical mission experiences on developing participants' core competencies, professional outcomes, and commitment to global health.

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Objective: To compare anthropometric z-scores with incidence of post-operative complications for patients undergoing primary cleft lip or palate repair.

Design: This was a retrospective observational analysis of patients from a surgical center in Assam, India, and includes a cohort from a single surgical mission completed before the opening of the center.

Setting: Patients included in the study underwent surgery during an Operation Smile mission before the opening of Operation Smile's Guwahati Comprehensive Cleft Care Center in Guwahati, India.

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The monoterpene indole alkaloids (MIAs) are a valuable family of chemicals that include the anticancer drugs vinblastine and vincristine. These compounds are of global significance-appearing on the World Health Organization's list of model essential medicines-but remain exorbitantly priced due to low in planta levels. Chemical synthesis and genetic manipulation of MIA producing plants such as Catharanthus roseus have so far failed to find a solution to this problem.

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A recent report of the Lancet Commission on Global Surgery has continued to emphasize the importance of surgery in global health. Plastic surgeons have been involved in humanitarian care of children in developing countries for many years. The ability to repair children with cleft lip and palate in resource-poor settings has made this desirable for many plastic surgeons.

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Many patients with cleft palate deformities worldwide receive treatment at a later age than is recommended for normal speech to develop. The outcomes after late palate repairs in terms of speech and quality of life (QOL) still remain largely unstudied. In the current study, questionnaires were used to assess the patients' perception of speech and QOL before and after primary palate repair.

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Background: The purpose of this study was to determine whether administration of postoperative antibiotics affects the incidence of complications after primary cleft palate repair in a developing area.

Methods: This study was a prospective, double-blind, randomized, placebo-controlled trial composed of 518 consecutive patients who underwent primary cleft palate repair at a single institution. Patients were aged 1 to 43 years at the time of surgery (median, 9 years).

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Late primary palatal repair is a common phenomenon, and many patients across the world will be operated on at a far later age than is suggested for normal speech development. Nevertheless, little is known about the speech outcomes after these procedures and conflicting results exist among the few studies performed. In this study, blinded preoperative and postoperative speech recordings from 31 patients operated on at Guwahati Comprehensive Cleft Care Center in Assam, India, older than 7 years were evaluated.

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Objective: To evaluate the feasibility and efficacy of a fully integrated hybrid closed-loop (HCL) system (Medtronic MiniMed Inc., Northridge, CA), in day and night closed-loop control in subjects with type 1 diabetes, both in an inpatient setting and during 6 days at diabetes camp.

Research Design And Methods: The Medtronic MiniMed HCL system consists of a fourth generation (4S) glucose sensor, a sensor transmitter, and an insulin pump using a modified proportional-integral-derivative (PID) insulin feedback algorithm with safety constraints.

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Objective: To analyze surgical complications after primary cleft palate repair in a setting with limited resources.

Patients And Design: A total of 1608 consecutive cleft palate repairs with 1408 follow-ups, operated upon between 2011 and 2013, were reviewed retrospectively through medical records. Patients were 10 months to 50 years old at the time of surgery, with a median age of 9 years.

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Objective: To analyze short term surgical complications after primary cleft lip repair.

Patients And Design: A total of 3108 consecutive lip repairs with 2062 follow-ups were reviewed retrospectively through medical records. Patients were aged 3 months to 75 years at the time of surgery, with a median of 7 years.

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