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27 result(s) for "Chao, Tiffany E."
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Systematic review of laparoscopic surgery in low- and middle-income countries: benefits, challenges, and strategies
Background Laparoscopy may prove feasible to address surgical needs in limited-resource settings. However, no aggregate data exist regarding the role of laparoscopy in low- and middle-income countries (LMICs). This study was designed to describe the issues facing laparoscopy in LMICs and to aggregate reported solutions. Methods A search was conducted using Medline, African Index Medicus, the Directory of Open Access Journals, and the LILACS/BIREME/SCIELO database. Included studies were in English, published after 1992, and reported safety, cost, or outcomes of laparoscopy in LMICs. Studies pertaining to arthroscopy, ENT, flexible endoscopy, hysteroscopy, cystoscopy, computer-assisted surgery, pediatrics, transplantation, and bariatrics were excluded. Qualitative synthesis was performed by extracting results that fell into three categories: advantages of, challenges to, and adaptations made to implement laparoscopy in LMICs. PRISMA guidelines for systematic reviews were followed. Results A total of 1101 abstracts were reviewed, and 58 articles were included describing laparoscopy in 25 LMICs. Laparoscopy is particularly advantageous in LMICs, where there is often poor sanitation, limited diagnostic imaging, fewer hospital beds, higher rates of hemorrhage, rising rates of trauma, and single income households. Lack of trained personnel and equipment were frequently cited challenges. Adaptive strategies included mechanical insufflation with room air, syringe suction, homemade endoloops, hand-assisted techniques, extracorporeal knot tying, innovative use of cheaper instruments, and reuse of disposable instruments. Inexpensive laboratory-based trainers and telemedicine are effective for training. Conclusions LMICs face many surgical challenges that require innovation. Laparoscopic surgery may be safe, effective, feasible, and cost-effective in LMICs, although it often remains limited in its accessibility, acceptability, and quality. This study may not capture articles written in languages other than English or in journals not indexed by the included databases. Surgeons, policymakers, and manufacturers should focus on plans for sustainability, training and retention of providers, and regulation of efforts to develop laparoscopy in LMICs.
Size and distribution of the global volume of surgery in 2012
To estimate global surgical volume in 2012 and compare it with estimates from 2004. For the 194 Member States of the World Health Organization, we searched PubMed for studies and contacted key informants for reports on surgical volumes between 2005 and 2012. We obtained data on population and total health expenditure per capita for 2012 and categorized Member States as very-low, low, middle and high expenditure. Data on caesarean delivery were obtained from validated statistical reports. For Member States without recorded surgical data, we estimated volumes by multiple imputation using data on total health expenditure. We estimated caesarean deliveries as a proportion of all surgery. We identified 66 Member States reporting surgical data. We estimated that 312.9 million operations (95% confidence interval, CI: 266.2-359.5) took place in 2012, an increase from the 2004 estimate of 226.4 million operations. Only 6.3% (95% CI: 1.7-22.9) and 23.1% (95% CI: 14.8-36.7) of operations took place in very-low- and low-expenditure Member States representing 36.8% (2573 million people) and 34.2% (2393 million people) of the global population of 7001 million people, respectively. Caesarean deliveries comprised 29.6% (5.8/19.6 million operations; 95% CI: 9.7-91.7) of the total surgical volume in very-low-expenditure Member States, but only 2.7% (5.1/187.0 million operations; 95% CI: 2.2-3.4) in high-expenditure Member States. Surgical volume is large and growing, with caesarean delivery comprising nearly a third of operations in most resource-poor settings. Nonetheless, there remains disparity in the provision of surgical services globally.
Catastrophic expenditures in California trauma patients after the Affordable Care Act: reduced financial risk and racial disparities
Hospital charges due to major injury can result in high out-of-pocket expenses for patients. We analyzed the effect of the Affordable Care Act (ACA) on catastrophic health expenditures (CHE) among trauma patients. We identified trauma patients aged 19-64 admitted to a safety-net Level 1 trauma center in California from 2007 to 2017. Out-of-pocket expenditures and income were calculated using hospital charges, insurance status, and ZIP code. CHE was defined using the World Health Organization definition of out-of-pocket spending exceeding 40% of inflation-adjusted income minus food and housing expenditures. Multivariable logistic regression was performed to assess odds of CHE post-ACA (2014–2017) vs. pre-ACA (2007–2013). Of 7519 trauma patients, 20.6% experienced CHE, including 89.0% of uninsured patients. There was a 74% decrease in odds of CHE post-ACA (aOR: 0.26, 95% CI: 0.22–0.30), with greater decreases among Black (aOR: 0.09, 95% CI: 0.04–0.18) and Hispanic (aOR: 0.23, 95% CI: 0.19–0.29) patients. ACA implementation was associated with markedly decreased odds of catastrophic expenditures and decreased racial disparities in financial protection among trauma patients in our study. •The Affordable Care Act (ACA) expanded insurance coverage in the United States.•ACA was associated with 74% lower risk of catastrophic spending by trauma patients.•White-Black and White-Hispanic disparities in catastrophic spending also decreased.•One in 11 trauma patients continues to experience catastrophic spending post-reform.
Cost-Effectiveness in Global Surgery: Pearls, Pitfalls, and a Checklist
Introduction Cost-effectiveness analysis can be a powerful policy-making tool. In the two decades since the first cost-effectiveness analyses in global surgery, the methodology has established the cost-effectiveness of many types of surgery in low- and middle-income countries (LMICs). However, with the crescendo of cost-effectiveness analyses in global surgery has come vast disparities in methodology, with only 15% of studies adhering to published guidelines. This has led to results that have varied up to 150-fold. Methods The theoretical basis, common pitfalls, and guidelines-based recommendations for cost-effectiveness analyses are reviewed, and a checklist to be used for cost-effectiveness analyses in global surgery is created. Results Common pitfalls in global surgery cost-effectiveness analyses fall into five categories: the analytic perspective, cost measurement, effectiveness measurement, probability estimation, valuation of the counterfactual, and heterogeneity and uncertainty. These are reviewed in turn, and a checklist to avoid these pitfalls is developed. Conclusion Cost-effectiveness analyses, when done rigorously, can be very useful for the development of efficient surgical systems in LMICs. This review highlights the common pitfalls in these analyses and methods to avoid these pitfalls.
Neurosurgical Randomized Trials in Low- and Middle-Income Countries
Abstract BACKGROUND The setting of a randomized trial can determine whether its findings are generalizable and can therefore apply to different settings. The contribution of low- and middle-income countries (LMICs) to neurosurgical randomized trials has not been systematically described before. OBJECTIVE To perform a systematic analysis of design characteristics and methodology, funding source, and interventions studied between trials led by and/or conducted in high-income countries (HICs) vs LMICs. METHODS From January 2003 to July 2016, English-language trials with >5 patients assessing any one neurosurgical procedure against another procedure, nonsurgical treatment, or no treatment were retrieved from MEDLINE, Scopus, and Cochrane Library. Income classification for each country was assessed using the World Bank Atlas method. RESULTS A total of 73.3% of the 397 studies that met inclusion criteria were led by HICs, whereas 26.7% were led by LMICs. Of the 106 LMIC-led studies, 71 were led by China. If China is excluded, only 8.8% were led by LMICs. HIC-led trials enrolled a median of 92 patients vs a median of 65 patients in LMIC-led trials. HIC-led trials enrolled from 7.6 sites vs 1.8 sites in LMIC-led studies. Over half of LMIC-led trials were institutionally funded (54.7%). The majority of both HIC- and LMIC-led trials evaluated spinal neurosurgery, 68% and 71.7%, respectively. CONCLUSION We have established that there is a substantial disparity between HICs and LMICs in the number of published neurosurgical trials. A concerted effort to invest in research capacity building in LMICs is an essential step towards ensuring context- and resource-specific high-quality evidence is generated.
Survey of Surgery and Anesthesia Infrastructure in Ethiopia
Background Information regarding surgical capacity in the developing world is limited by the paucity of available data regarding surgical care, infrastructure, and human resources in the literature. The purpose of this study was to assess surgical and anesthesia infrastructure and human resources in Ethiopia as part of a larger study by the Harvard Humanitarian Initiative examining surgical and anesthesia capacity in ten low-income countries in Africa. Methods A comprehensive survey tool developed by the Harvard Humanitarian Initiative was used to assess surgical capacity of hospitals in Ethiopia. A total of 20 hospitals were surveyed through convenience sampling. Eight areas of surgical and anesthesia care were examined, including access and availability, access to human resources, infrastructure, outcomes, operating room information and procedures, equipment, nongovernmental organization delivery of surgical services, and pharmaceuticals. Results were obtained over a 1-month period during October 2011. Results There is wide variation in accessibility, with hospital-to-population ratios ranging from 1:99,010 to 1:1,082,761. The overall physician to population ratio ranges from 1:4715 to 1:107,602. The average hospital has one to two operating rooms, 4.2 surgeons, one gynecologist, and 4.5 anesthesia providers—although in all but three hospitals anesthesiology was provided by nonphysician personnel only (i.e., a nurse anesthetist). Access to continuous electricity, running water, essential medications, and monitoring systems is very limited in all hospitals surveyed, although such access did vary across regions. Conclusions This survey of Ethiopia’s hospital resources attempts to identify specific areas of need where resources, education, and development can be targeted. Because the major surgical mortality comes from late presentations, increasing accessibility through infrastructure development would likely provide a major improvement in surgical morbidity and mortality rates. Infrastructure limitations of electricity, water, oxygen, and blood banking do not prove to be significant barriers to surgical care. The increasing number of physicians is promising, although efforts should be directed specifically toward increasing the number of anesthesiologists and surgeons in the country.
The Effect of Conflict on Obstetric and Non-Obstetric Surgical Needs and Operative Mortality in Fragile States
Background Médecins Sans Frontières (MSF) provides surgical care in fragile states, which are more vulnerable to conflict. The primary objective of this study was to compare the indications for operative intervention in surgical projects in fragile states during periods of active conflict (CON) and non-conflict (NON-CON). In addition, risk factors for non-obstetric and obstetric operative mortality were identified. Methods This was a retrospective analysis of MSF surgical projects in fragile states January 1, 2008 – December 31, 2017. Variables considered in the analysis include age, gender, American Society of Anesthesiology physical status, emergency status, re-intervention status, indication for surgical intervention, and conflict/non-conflict time period. Results There were 30 surgical projects in 13 fragile states with 87,968 surgical interventions in 68,667 patients. Obstetric needs were the most common indication for surgical intervention ( n  = 28,060, 31.9%) but were more common during NON-CON (n = 23,142, 35.7%) compared to CON periods ( n  = 4,918, 21.2%, p  < 0.001). Trauma was more common during CON (42.0%) compared to NON-CON (23.0%) periods ( p  < 0.001). Non-obstetric operative mortality was similar during CON (0.2%) compared to NON-CON (0.2%, p  = 0.920), but obstetric operative mortality was higher (0.5%) during CON compared to NON-CON (0.2%, p  < 0.001) periods. Risk factors for obstetric and non-obstetric mortality included age ≥ 30 years, ASA greater than 1, and emergency intervention. Conclusion Humanitarian surgeons working in fragile states should be prepared to treat a range of surgical needs including trauma and obstetrics during conflict and non-conflict periods. The mortality in obstetric patients was higher during conflict periods, and further research to understand ways to protect this vulnerable group is needed.
A geospatial evaluation of timely access to surgical care in seven countries
To assess the consistent availability of basic surgical resources at selected facilities in seven countries. In 2010-2014, we used a situational analysis tool to collect data at district and regional hospitals in Bangladesh (  = 14), the Plurinational State of Bolivia (  = 18), Ethiopia (  = 19), Guatemala (  = 20), the Lao People's Democratic Republic (  = 12), Liberia (  = 12) and Rwanda (  = 25). Hospital sites were selected by pragmatic sampling. Data were geocoded and then analysed using an online data visualization platform. Each hospital's catchment population was defined as the people who could reach the hospital via a vehicle trip of no more than two hours. A hospital was only considered to show consistent availability of basic surgical resources if clean water, electricity, essential medications including intravenous fluids and at least one anaesthetic, analgesic and antibiotic, a functional pulse oximeter, a functional sterilizer, oxygen and providers accredited to perform surgery and anaesthesia were always available. Only 41 (34.2%) of the 120 study hospitals met the criteria for the provision of consistent basic surgical services. The combined catchments of the study hospitals in each study country varied between 3.3 million people in Liberia and 151.3 million people in Bangladesh. However, the combined catchments of the study hospitals in each study country that met the criteria for the provision of consistent basic surgical services were substantially smaller and varied between 1.3 million in Liberia and 79.2 million in Bangladesh. Many study facilities were deficient in the basic infrastructure necessary for providing basic surgical care on a consistent basis.
Surgical Care in Liberia and Implications for Capacity Building
Background Situational needs of health care facilities inform the optimal allocation of resources and quality improvement efforts. This study examines surgical care delivery metrics at a tertiary care institution in Liberia. Methods We retrospectively reviewed operative and ward logbooks from January 1 to December 31, 2012. Data parameters included patients’ age, diagnosis, procedure, mortality, and perioperative provider information. Results In 2012, 1,036 operations were performed. The breakdown of adult surgical cases reveals 452 (45.1 %) general surgery operations, 192 (18.5 %) orthopedic operations, and 180 (17.4 %) ophthalmic operations. Other significant case volume included urologic 53 (5.1 %), ENT 36 (3.5 %), neurosurgical 31 (3.0 %), vascular 24 (2.3 %), and plastic 14 (1.4 %) operations. Pediatric patients accounted for 24.5 % (243) of surgical cases, and 9 % of pediatric surgical cases were for hydrocephalus. General, spinal, and total intravenous anesthesia was provided by non-physician personnel, except when surgeons provided their own anesthesia. Ward logs documented 7.4 % mortality among all patients admitted to the surgical ward, most of which occurred after exploratory laparotomy (44 %), in burn (14 %) patients, and in patients with head/neck emergencies (12 %). Conclusions This operative log review can be used to identify surgical practice patterns, needs, and deficits in order to inform the growth of surgical capacity at Liberia’s only tertiary medical institution. Using this data to identify critical areas of high-yield operations (e.g., for pediatric hydrocephalus), or excessively high mortality rates (e.g., in burn care), can focus the direction of limited resources toward areas of need. While the heavy reliance on non-consultant surgeons reflects human capacity shortages and a pressing need for postgraduate training programs, identifying the breadth of surgical expertise demonstrated in these operative logs reveals the proficiencies required of surgeons to provide comprehensive surgical care in this setting.