Cultural competency and ethical behavior for collaboration in limited-resource settings: Guidelines from the Society of University Surgeons Academic Global Surgery Committee and the Association for Academic Global Surgery.

BACKGROUND: There are an increasing number of global surgery activities worldwide. With such tremendous growth, there is a potential risk for untoward interactions between high-income country members and low-middle income country members, leading to programmatic failure, poor results, and/or low impact. METHODS: Key concepts for cultural competency and ethical behavior were generated by the Academic Global Surgery Committee of the Society for University Surgeons in collaboration with the Association for Academic Global Surgery. Both societies ensured active participation from high-income countries and low-middle income countries. RESULTS: The guidelines provide a framework for cultural competency and ethical behavior for high-income country members when collaborating with low-middle income country partners by offering recommendations for: (1) preparation for work with low-middle income countries; (2) process standardization; (3) working with the local community; (4) limits of practice; (5) patient autonomy and consent; (6) trainees; (7) potential pitfalls; and (8) gray areas. CONCLUSION: The article provides an actionable framework to address potential cultural competency and ethical behavior issues in high-income country - low-middle income country global surgery collaborations.

Transfusion and Mortality in Acute Care Surgical Patients in Malawi: A Propensity-Matched Analysis.

INTRODUCTION: Information on transfusion-associated outcomes is limited in sub-Saharan Africa. We sought to characterize predictors of mortality in transfused patients with acute care surgical conditions in Malawi. METHODS: We performed a retrospective propensity-matched analysis of patients with acute care surgical conditions at Kamuzu Central Hospital in Malawi from 2013 to 2021. We compared outcomes between patients who did and did not receive transfusions. RESULTS: A total of 7395 patients were included. Transfused patients (n = 1086) were older (median 43 y with interquartile range 30-59, versus 39 y [interquartile range 27-53] in the nontransfused group, P < 0.01), had a higher proportion of females (41% versus 27%, P < 0.01), presented earlier to the hospital (median 2.9 versus 3.7 d, P = 0.02), and with lower hemoglobin levels (27% versus 1% < 7 g/dL, P < 0.01). They had a lower rate of surgical intervention (48% versus 59%, P < 0.01) but a higher rate of complications (62% versus 33%, P < 0.01). Crude in-hospital mortality was 25.5% for the transfused group and 12.8% for the nontransfused group (P < 0.01). After propensity matching, transfused patients had three times the odds of mortality compared to nontransfused patients (odds ratio 3.3, 95% confidence interval 2.3, 4.8). CONCLUSIONS: In this propensity-matched study, transfused surgical patients were more likely to experience in-hospital mortality. These results suggest that the transfusion requirement reflects critical illness and warrants further investigation in this low-resource setting.

Evaluating Global Surgery Partnerships From Low and Middle Income Country Perspectives.

INTRODUCTION: Little is known about perceptions of low-income and middle-income country (LMIC) partners regarding global surgery collaborations with high-income countries (HICs). METHODS: A survey was distributed to surgeons from LMICs to assess the nature and perception of collaborations, funding, benefits, communication, and the effects of COVID-19 on partnerships. RESULTS: We received 19 responses from LMIC representatives in 12 countries on three continents. The majority (83%) had participated in collaborations within the past 5 y with 39% of collaborations were facilitated virtually. Clinical and educational partnerships (39% each) were ranked most important by respondents. Sustainability of the partnership was most successfully achieved in domains of education/training (78%) and research (61%). The majority (77%) of respondents reported expressing their needs before HIC team arrival. However, 54% of respondents were the ones to initiate the conversation and only 47% said HIC partners understood the overall environment well at arrival to LMIC. Almost all participants (95%) felt a formal process of collaboration and a structured partnership would benefit all parties in assessing needs. During the COVID-19 pandemic, 87% of participants reported continued collaborations; however, 44% of partners felt that relationships were weaker, 31% felt relationships were stronger, and 25% felt they were unchanged. CONCLUSIONS: Our study provides a snapshot of LMIC surgeons' perspectives on collaboration in global surgery. Independent of location, LMIC partners cite inadequate structure for long-term collaborations. We propose a formal pathway and initiation process to assess resources and needs at the outset of a partnership.

Predictors of Functional Decline Among Critically Ill Surgical Patients: A National Analysis.

INTRODUCTION: Functional decline is associated with critical illness, though this relationship in surgical patients is unclear. This study aims to characterize functional decline after intensive care unit (ICU) admission among surgical patients. METHODS: We performed a retrospective analysis of surgical patients admitted to the ICU in the Cerner Acute Physiology and Chronic Health Evaluation database, which includes 236 hospitals, from 2007 to 2017. Patients with and without functional decline were compared. Predictors of decline were modeled. RESULTS: A total of 52,838 patients were included; 19,310 (36.5%) experienced a functional decline. Median ages of the decline and nondecline groups were 69 (interquartile range 59-78) and 63 (interquartile range 52-72) years, respectively (P < 0.01). The nondecline group had a larger proportion of males (59.1% versus 55.3% in the decline group, P < 0.01). After controlling for sociodemographic covariates, comorbidities, and disease severity upon ICU admission, patients undergoing pulmonary (odds ratio [OR] 6.54, 95% confidence interval [CI] 2.67-16.02), musculoskeletal (OR 4.13, CI 3.51-4.87), neurological (OR 2.67, CI 2.39-2.98), gastrointestinal (OR 1.61, CI 1.38-1.88), and skin and soft tissue (OR 1.35, CI 1.08-1.68) compared to cardiovascular surgeries had increased odds of decline. CONCLUSIONS: More than one in three critically ill surgical patients experienced a functional decline. Pulmonary, musculoskeletal, and neurological procedures conferred the greatest risk. Additional resources should be targeted toward the rehabilitation of these patients.

Cues to care: Chronic disease diagnosis in young adult trauma patients.

BACKGROUND: Prevention of chronic disease necessitates early diagnosis and intervention. In young adults, a trauma admission may be an early contact with the health care system, representing an opportunity for screening and intervention. This study estimates the prevalence of previously diagnosed disease and undiagnosed disease (UD)-diabetes mellitus, hypertension, obesity, and alcohol and substance use-in a young adult trauma population. We determine factors associated with UD and examine outcomes in patients with UD. METHODS: This is a multicenter, retrospective cohort study of adult trauma patients 18 to 40 years old admitted to participating Level I trauma centers between January 2018 and December 2020. Three Level 1 trauma centers in a single state participated in the study. Trauma registry data and chart review were examined for evidence of previously diagnosed disease or UD. Patient demographics and outcomes were compared between cohorts. Multivariable regression modeling was performed to assess risk factors associated with any UD. RESULTS: The analysis included 6,307 admitted patients. Of these, 4,843 (76.8%) had evidence of at least 1 UD, most commonly hypertension and obesity. In multivariable models, factors most associated with risk of UD were age (adjusted odds ratio [aOR], 0.98; 95% confidence interval [CI], 0.98-0.99), male sex (aOR, 1.43; 95% CI, 1.25-1.63), and uninsured status (aOR, 1.57; 95% CI, 1.38-1.80). Only 24.5% of patients had evidence of a primary care provider (PCP), which was not associated with decreased odds of UD. Clinical outcomes were significantly associated with the presence of chronic disease. Of those with UD and no PCP, only 11.2% were given a referral at discharge. CONCLUSION: In the young adult trauma population, the UD burden is high, especially among patients with traditional sociodemographic risk factors and even in patients with a PCP. Because of short hospital stays in this population, the full impact of UD may not be visible during a trauma admission. Early chronic disease diagnosis in this population will require rigorous, standard screening measures initiated within trauma centers. LEVEL OF EVIDENCE: Prognostic and Epidemiological; Level IV.

The Timing of Operative Intervention for Pediatric Burn Patients in Malawi.

BACKGROUND: Defining the optimal timing of operative intervention for pediatric burn patients in a resource-limited environment is challenging. We sought to characterize the association between mortality and the timing of operative intervention at a burn center in Lilongwe, Malawi. METHODS: This is a retrospective analysis of burn patients (<18 years old) presenting to Kamuzu Central Hospital from 2011 to 2022. We compared patients who underwent excision and/or burn grafting based on the timing of the operation. We used logistic regression modeling to estimate the adjusted odds ratio of death based on the timing of surgery. RESULTS: We included 2502 patients with a median age of 3 years (IQR 1-5) and a male preponderance (56.8%). 411 patients (16.4%) had surgery with a median time to surgery of 18 days (IQR 8-34). The crude mortality rate among all patients was 17.0% and 9.1% among the operative cohort. The odds ratio of mortality for patients undergoing surgery within 3 days from presentation was 5.00 (95% CI 2.19, 11.44) after adjusting for age, sex, % total burn surface area (TBSA), and flame burn. The risk was highest for the youngest patients. CONCLUSIONS: Children who underwent burn excision and/or grafting in the first 3 days of hospitalization had a much higher risk of death than patients undergoing surgical intervention later. Delaying operative intervention till >72 h for pediatric patients, especially those under 5 years old, may confer a survival advantage. More investment is needed in early resuscitation and monitoring for this patient population.

The effect of transport mode on mortality following isolated penetrating torso Trauma.

BACKGROUND: Prehospital interventions may increase the time to definitive care. Compared to ground ambulance, we hypothesize improved mortality for patients with isolated, penetrating torso injuries transported via private vehicle. METHODS: We reviewed the National Trauma Data Bank (2017-2021) for adults with isolated, penetrating torso injuries stratified by mechanism (stabbing vs. firearm) and transport mode (private vehicle vs. ground ambulance). We performed a multivariable logistic regression to estimate the effect of transport mode on mortality. RESULTS: 48,444 patients met our inclusion criteria. Patients transported by ambulance, injured by stabbing (n = 26,633) and by firearm (n = 21,811) had adjusted odds ratios of 1.81 (95%CI 1.05-3.14, p = 0.03) and 1.66 (95%CI 1.32-2.09,p < 0.001) respectively for mortality compared to private vehicle transport. CONCLUSION: Patients with penetrating torso injuries have nearly twice the odds of mortality when transported by ground ambulance than private vehicles, despite injury severity. The "scoop and run" strategy may confer a survival benefit in this population.

Arrhythmias in Critically Ill Surgical and Non-surgical Patients: A National Propensity-Matched Study.

BACKGROUND: Arrhythmias are common in critically ill patients, though the impact of arrhythmias on surgical patients is not well delineated. We aimed to characterize mortality following arrhythmias in critically ill patients. METHODS: We performed a propensity-matched retrospective analysis of intensive care unit (ICU) patients from 2007 to 2017 in the Cerner Acute Physiology and Chronic Health Evaluation database. We compared outcomes between patients with and without arrhythmias and those with and without surgical indications for ICU admission. We also modeled predictors of arrhythmias in surgical patients. RESULTS: 467,951 patients were included; 97,958 (20.9%) were surgical patients. Arrhythmias occurred in 1.4% of the study cohorts. Predictors of arrhythmias in surgical patients included a history of cardiovascular disease (odds ratio [OR] 1.35, 95% confidence interval [CI95] 1.11-1.63), respiratory failure (OR 1.48, CI95 1.12-1.96), pneumonia (OR 3.17, CI95 1.98-5.10), higher bicarbonate level (OR 1.03, CI95 1.01-1.05), lower albumin level (OR 0.79, CI95 0.68-0.91), and vasopressor requirement (OR 27.2, CI95 22.0-33.7). After propensity matching, surgical patients with arrhythmias had a 42% mortality risk reduction compared to non-surgical patients (risk ratio [RR] 0.58, CI 95 0.43-0.79). Predicted probabilities of mortality for surgical patients were lower at all ages. CONCLUSIONS: Surgical patients with arrhythmias are at lower risk of mortality than non-surgical patients. In this propensity-matched analysis, predictors of arrhythmias in critically ill surgical patients included a history of cardiovascular disease, respiratory complications, increased bicarbonate levels, decreased albumin levels, and vasopressor requirement. These findings highlight the differential effect of arrhythmias on different cohorts of critically ill populations.

Difference in Postoperative Outcomes and Perioperative Resource Utilization Between General Surgeons and Pediatric Surgeons: A Systematic Review.

Background: Both general surgeons (GS) and pediatric surgeons (PS) perform a high volume of appendectomies in pediatric patients, but there is a paucity of data on these outcomes based on surgeon training. We performed a systematic review and meta-analysis to compare postoperative outcomes and perioperative resource utilization for pediatric appendectomies.Methods: We searched PubMed to identify articles examining the association between surgeon specialization and outcomes for pediatric patients undergoing appendectomies. Study selection, data extraction, risk of bias assessment, and quality assessment were performed by one reviewer, with another reviewer to resolve discrepancies.Results: We identified 4799 articles, with 98.4% (4724/2799) concordance after initial review. Following resolution of discrepancies, 16 studies met inclusion criteria. Of the studies that reported each outcome, GS and PS demonstrated similar rates of readmission within 30 days (pooled RR 1.61 95% CI 0.66, 2.55) wound infections (pooled RR 1.07, 95% CI .55, 1.60), use of laparoscopic surgery (pooled RR 1.87, 95% CI .21, 3.53), postoperative complications (pooled RR 1.40, 95% CI .83, 1.97), use of preoperative imaging (pooled RR .98,95% CI .90, 1.05), and intra-abdominal abscesses (pooled RR .80, 95% CI .03, 1.58). Patients treated by GS did have a significantly higher risk of negative appendectomies (pooled RR 1.47, 95% CI 1.10, 1.84) when compared to PS.Discussion: This is the first meta-analysis to compare outcomes for pediatric appendectomies performed by GS compared to PS. Patient outcomes and resource utilization were similar among PS and GS, except for negative appendectomies were significantly more likely with GS.

Splenic Salvage: Is There a Role for Splenorrhaphy in the Management of Adult Splenic Trauma?

INTRODUCTION: Nonoperative management of splenic injuries is recommended. Total splenectomy is the primary operative management, and the current role of splenorrhaphy in splenic salvage is not well delineated. METHODS: We reviewed the National Trauma Data Bank (2007-2019) for adult splenic injuries. Operative splenic injury management were compared. We performed bivariate analysis and multivariable logistic regression to estimate the effect of surgical management on mortality. RESULTS: 189,723 patients met the inclusion criteria. Splenic injury management was stable, with 18.2% undergoing a total splenectomy and 1.9% splenorrhaphy. Splenorrhaphy patients had lower crude mortality (2.7% vs 8.3%, P < .001) than total splenectomy patients. Failed splenorrhaphy patients had higher crude mortality (10.1% vs 8.3%, P < .001) than patients who underwent initial total splenectomy. Patients who underwent total splenectomy had an adjusted odd of 2.30 (95% CI 1.82-2.92, P < .001) for mortality compared to successful splenorrhaphy. Patients who failed splenorrhaphy had an adjusted odd of 2.36 (95% CI 1.19-4.67, P < .014) for mortality compared to successful splenorrhaphy. CONCLUSION: Adults with splenic injuries requiring operative intervention have twice the odds of mortality when a total splenectomy is performed or when splenorrhaphy fails compared to successful splenorrhaphy.

Tri-modal Distribution of Trauma Deaths in a Resource-Limited Setting: Perception Versus Reality.

BACKGROUND: Advances in trauma care in high-income countries have significantly reduced late deaths following trauma, challenging the classical trimodal pattern of trauma-associated mortality. While studies from low and middle-income countries have demonstrated that the trimodal pattern is still occurring in many regions, there is a lack of data from sub-Saharan Africa evaluating the temporal epidemiology of trauma deaths. METHODS: We conducted a retrospective analysis of the trauma registry at Kamuzu Central Hospital in Lilongwe, Malawi, including all injured patients presenting to the emergency department (ED) from 2009 to 2021. Patients were compared based on timing of death relative to time of injury. We then used a modified Poisson regression model to identify adjusted predictors for early mortality compared to late mortality. RESULTS: Crude mortality of patients presenting to the ED in the study period was 2.4% (n = 4,096/165,324). Most patients experienced a pre-hospital death (n = 2,330, 56.9%), followed by death in the ED (n = 619, 15.1%). Early death (pre-hospital or ED) was associated with transportation by police (RR1.52, 95% CI 1.38, 1.68) or private vehicle (RR1.20, 95% CI 1.07, 1.31), vehicle-related trauma (RR1.10, 95% CI 1.05, 1.14), and penetrating injury (RR1.11, 95% CI 1.04, 1.19). Ambulance transportation was associated with a 40% decrease in the risk of early death. CONCLUSIONS: At a busy tertiary trauma center in Malawi, most trauma-associated deaths occur within 48 h of injury, with most in the pre-hospital setting. To improve clinical outcomes for trauma patients in this environment, substantial investment in pre-hospital care is required through first-responder training and EMS infrastructure.

Nonoperative Management Versus Laparoscopic Appendectomy in Children: A Cost-Effectiveness Analysis.

INTRODUCTION: Nonoperative management (NOM) of acute appendicitis in the pediatric population is highly debated with uncertain cost-effectiveness. We performed a decision tree cost-effectiveness analysis of NOM versus early laparoscopic appendectomy (LA) for acute appendicitis in children. METHODS: We created a decision tree model for a simulated cohort of 49,000 patients, the number of uncomplicated appendectomies performed annually, comparing NOM and LA. We included postoperative complications, recurrent appendicitis, and antibiotic-related complications. We used the payer perspective with a 1-year time horizon. Model uncertainty was analyzed using a probabilistic sensitivity analysis. Event probabilities, health-state utilities, and costs were obtained from literature review, Healthcare Cost and Utilization Project, and Medicare fee schedules. RESULTS: In the base-case analysis, NOM costs $6530/patient and LA costs $9278/patient on average at 1 y. Quality-adjusted life year (QALY) differences minimally favored NOM compared to LA with 0.997 versus 0.996 QALYs/patient. The incremental cost-effectiveness ratio for NOM over LA was $4,791,149.52/QALY. NOM was dominant in 97.4% of simulations, outperforming in cost and QALYs. A probabilistic sensitivity analysis showed NOM was 99.6% likely to be cost-effective at a willingness-to-pay threshold of $100,000/QALY. CONCLUSIONS: Our model demonstrates that NOM is a dominant strategy to LA over a 1-year horizon. We use recent trial data demonstrating higher rates of early and late NOM failures. However, we also incorporate a shorter length of index hospitalizations with NOM, reflecting a contemporary approach to NOM and ultimately driving cost-effectiveness. Long-term follow-up data are needed in this population to assess the cost-effectiveness of NOM over longer time horizons, where healthcare utilization and recurrence rates may be higher.

Fall-Related Injuries in Malawi: Outcomes and Trends Over Time.

BACKGROUND: Fall-related injury (FRI) is a leading cause of injuries worldwide. Data on injury patterns and trends over time are lacking in resource-limited settings. METHODS: We performed a retrospective analysis of FRI at Kamuzu Central Hospital in Malawi from 2009 to 2021. Outcomes were compared between patients presenting with FRI and those with other injury mechanisms. Bivariate and multivariate regressions were used to determine predictors of presentation following falls and mortality. We also analyzed time trends. RESULTS: A total of 166,047 patients were included, of which 41,695 were patients presenting after falls (25.7%). Most FRI patients were between 5 and 45 (67.2%) and male (66.9%). Most falls occurred at home (67.3%) and resulted in extremity injuries (51.6%). The predicted probability of hospital presentation after falling is highest for children ≤ 5 years and adults > 60 years and decreases over time. On multivariate analysis, patients between 5 and 15 [adjusted odds ratio (AOR) 1.70, 95% confidence interval (CI) 1.63-1.77] and > 60 (AOR 1.14, 95% CI 1.07-1.22) and women (AOR 1.13, 95% CI 1.10-1.16) are more likely to present with FRI. Compared to patients with non-FRI, those with FRI were more likely to have been injured at school (AOR 2.16, 95% CI 2.01-2.32) and during sports and recreation (AOR 4.53, 95% CI 4.24-4.85). CONCLUSION: FRI is the most common injury presentation after motor vehicle injury in this low-resource setting. This study provides essential information about FRI in Malawi over time. Our findings can help inform resource allocation and injury prevention initiatives.

The role of ECMO in COVID-19 acute respiratory failure: Defining risk factors for mortality.

BACKGROUND: Veno-venous extracorporeal membrane oxygenation (VV ECMO) utilization increased substantially during the COVID-19 pandemic, but without patient selection criteria. METHODS: We conducted a retrospective review of all adult patients with COVID-19-associated ARDS placed on VV ECMO at our institution from April 2020 through June 2022. RESULTS: 162 patients were included (n = 95 Pre-Delta; n = 58 Delta; n = 9 Omicron). The frequency of ECMO duration greater than three weeks was variable by pandemic period (17% pre-Delta, 41% Delta, 22% Omicron, p = 0.003). In-hospital mortality was 60.5%. Age ≥50 years (RR 1.28, 95% CI 1.01, 1.62), ≥7 days of respiratory support (1.39, 95% CI 1.05, 1.83) and pre-cannulation renal failure requiring dialysis (RR 1.42, 95% CI 1.13, 1.78) were associated with mortality. CONCLUSIONS: In this cohort of VV ECMO patients with COVID-19, older age, a longer duration of pre-ECMO respiratory support, and pre-ECMO renal failure all increased the risk of mortality by approximately 30%.

Sex-Based Differences in Survival Among Patients with Acute Abdomen Undergoing Surgery in Malawi: A Propensity Weighted Analysis.

INTRODUCTION: Sex disparities in access to health care in low-resource settings have been demonstrated. Still, there has been little research on the effect of sex on postoperative outcomes. We evaluated the relationship between sex and mortality after emergency abdominal surgery. METHODS: We performed a retrospective cohort study using the acute care surgery database at Kamuzu Central Hospital (KCH) in Malawi. We included patients who underwent emergency abdominal surgery between 2013 and 2021. We created a propensity score weighted Cox proportional hazards model to assess the relationship between sex and inpatient survival. RESULTS: We included 2052 patients in the study, and 76% were males. The most common admission diagnosis in both groups was bowel obstruction. Females had a higher admission shock index than males (0.91 vs. 0.81, p < 0.001) and a longer delay from admission until surgery (1.47 vs. 0.79 days, p < 0.001). Females and males had similar crude postoperative mortality (16.3% vs. 15.3%, p = 0.621). The final Cox proportional hazards regression model was based on the propensity-weighted cohort. The mortality hazard ratio was 0.65 among females compared to males (95% CI 0.46-0.92, p = 0.014). CONCLUSIONS: Our results show a survival advantage among female patients undergoing emergency abdominal surgery despite sex-based disparities in access to surgical care that favors males. Further research is needed to understand the mechanisms underlying these findings.