Psychosocial Determinants of Readmission After Surgery.

BACKGROUND: Quality of life and psychosocial determinants of health, such as health literacy and social support, are associated with increased health care utilization and adverse outcomes in medical populations. However, the effect on surgical health care utilization is less understood. OBJECTIVE: We sought to examine the effect of patient-reported quality of life and psychosocial determinants of health on unplanned hospital readmissions in a surgical population. RESEARCH DESIGN: This is a prospective cohort study using patient interviews at the time of hospital discharge from a Veterans Affairs hospital. SUBJECTS: We include Veterans undergoing elective inpatient general, vascular, or thoracic surgery (August 1, 2015-June 30, 2017). MEASURES: We assessed unplanned readmission to any medical facility within 30 days of hospital discharge. RESULTS: A total of 736 patients completed the 30-day postoperative follow-up, and 16.3% experienced readmission. Lower patient-reported physical and mental health, inadequate health literacy, and discharge home with help after surgery or to a skilled nursing or rehabilitation facility were associated with an increased incidence of readmission. Classification regression identified the patient-reported Veterans Short Form 12 (SF12) Mental Component Score <31 as the most important psychosocial determinant of readmission after surgery. CONCLUSIONS: Mental health concerns, inadequate health literacy, and lower social support after hospital discharge are significant predictors of increased unplanned readmissions after major general, vascular, or thoracic surgery. These elements should be incorporated into routinely collected electronic health record data. Also, discharge plans should accommodate varying levels of health literacy and consider how the patient's mental health and social support needs will affect recovery.

The Association of Enhanced Recovery Pathway and Acute Kidney Injury in Patients Undergoing Colorectal Surgery.

BACKGROUND: Acute kidney injury is associated with increased postoperative length of hospital stay and increases the risk of postoperative mortality. The association between the development of postoperative acute kidney injury and the implementation of an enhanced recovery after surgery protocol remains unclear. OBJECTIVE: This study aimed to examine the relationship between the implementation of an enhanced recovery pathway and the development of postoperative acute kidney injury. DESIGN: In this retrospective cohort study, a prospectively maintained database of patients who underwent elective colorectal surgery in an enhanced recovery pathway were compared to a hospital historical National Surgical Quality Improvement Program colorectal registry of patients. SETTINGS: This study was conducted at the University of Alabama at Birmingham, a tertiary referral center. PATIENTS: A total of 1052 patients undergoing elective colorectal surgery from 2012 through 2016 were included. MAIN OUTCOME MEASURES: The development of postoperative acute kidney injury was the primary outcome measured. RESULTS: Patients undergoing an enhanced recovery pathway had significantly greater rates of postoperative acute kidney injury than patients not undergoing an enhanced recovery pathway (13.64% vs 7.08%; p < 0.01). Our adjusted model indicated that patients who underwent an enhanced recovery pathway (OR, 2.31; 95% CI, 1.48-3.59; p < 0.01) had an increased risk of acute kidney injury. Patients who developed acute kidney injury in the enhanced recovery cohort had a significantly longer median length of stay than those who did not (median 4 (interquartile range, 4-9) vs 3 (interquartile range, 2-5) days; p=0.04). LIMITATIONS: This study did not utilize urine output as a modality for detecting acute kidney injury. Data are limited to a sample of patients from a large academic medical center participating in the National Surgical Quality Improvement Program. Interventions or programs in place at our institution that aimed at infection reduction or other initiatives with the goal of improving quality were not accounted for in this study. CONCLUSION: The implementation of an enhanced recovery after surgery protocol is independently associated with the development of postoperative acute kidney injury.See Video Abstract at http://links.lww.com/DCR/B69. LA ASOCIACIÓN DE VÍA DE RECUPERACIÓN MEJORADA Y LESIÓN RENAL AGUDA EN PACIENTES DE CIRUGÍA COLORRECTAL: La lesión renal aguda se asocia con una mayor duración en la estancia hospitalaria y aumenta el riesgo de la mortalidad postoperatoria. La asociación entre el desarrollo de la lesión renal aguda postoperatoria y la implementación de un protocolo de Recuperación Mejorada después de la cirugía, sigue sin ser clara.Examinar la relación entre la implementación de una vía de Recuperación Mejorada y el desarrollo de lesión renal aguda postoperatoria.Estudio de cohorte retrospectivo, de una base de datos mantenida prospectivamente, de pacientes que se sometieron a cirugía colorrectal electiva, en una vía de Recuperación Mejorada, se comparó con el registro histórico de los pacientes colorrectales del Programa Nacional de Mejora de la Calidad Quirúrgica.Universidad de Alabama en Birmingham, un centro de referencia terciario.Un total de 1052 pacientes sometidos a cirugía colorrectal electiva desde 2012 hasta 2016.Desarrollo de lesión renal aguda postoperatoria.Los pacientes sometidos a una vía de Recuperación Mejorada, tuvieron tasas significativamente mayores de lesiones renales agudas postoperatorias, en comparación con los pacientes de Recuperación no Mejorada (13.64% vs 7.08%; p < 0.01). Nuestro modelo ajustado indicó que los pacientes que se sometieron a una vía de Recuperación Mejorada (OR, 2.31; IC, 1.48-3.59; p < 0.01) tuvieron un mayor riesgo de lesión renal aguda. Los pacientes que desarrollaron daño renal agudo en la cohorte de Recuperación Mejorada, tuvieron una estadía mediana significativamente más larga en comparación con aquellos que no [mediana 4 (rango intercuartil (RIC) 4-9) versus 3 (RIC 2-5) días; p = 0.04].Este estudio no utilizó la producción de orina como una modalidad para detectar daño renal agudo. Los datos se limitan a una muestra de pacientes de un gran centro médico académico, que participa en el Programa Nacional de Mejora de la Calidad Quirúrgica. Las intervenciones o programas implementados en nuestra institución, destinados a la reducción de infecciones u otras iniciativas, con el objetivo de mejorar la calidad, no se tomaron en cuenta para este estudio.La implementación de una Recuperación Mejorada después del protocolo de cirugía, se asocia independientemente con el desarrollo de lesión renal aguda postoperatoria.Consulte Video Resumen en http://links.lww.com/DCR/B69. (Traducción-Dr. Fidel Ruiz-Healy).

Enhanced Recovery After Surgery (ERAS) Eliminates Racial Disparities in Postoperative Length of Stay After Colorectal Surgery.

OBJECTIVE: To investigate the effects of enhanced recovery after surgery (ERAS) on racial disparities in postoperative length of stay (pLOS) after colorectal surgery. BACKGROUND: Racial disparities in surgical outcomes exist. We hypothesized that ERAS would reduce disparities in pLOS between black and white patients. METHODS: Patients undergoing ERAS in 2015 were 1:1 matched by race/ethnicity, age, sex, and procedure to a pre-ERAS group from 2010 to 2014. After stratification by race/ethnicity, expected pLOS was calculated using the American College of Surgeons National Surgical Quality Improvement Project Risk Calculator. Primary outcome was the observed pLOS and observed-to-expected difference in pLOS. Secondary outcomes were National Surgical Quality Improvement Project postoperative complications including 30-day readmissions and mortality. Adjusted sensitivity analyses on pLOS were also performed. RESULTS: Of 420 patients (210 ERAS and 210 pre-ERAS) examined, 28.3% were black. Black and white patients were similar in age, body mass index, sex, American Anesthesia Association class, and minimally invasive approaches. Within the pre-ERAS group, black patients stayed a mean of 2.7 days longer than expected compared with white patients (P < 0.05). Overall, ERAS patients had a significantly shorter pLOS (5.7 vs 8 days) and observed-to-expected difference (-0.7 vs 1.4 days) compared with pre-ERAS patients (P < 0.01). In the ERAS group, disparities in pLOS were reduced with no differences in readmissions or mortality between black and white patients. On sensitivity analyses, race/ethnicity remained a significant predictor of pLOS among pre-ERAS patients, but not for ERAS patients. CONCLUSIONS: ERAS eliminated racial differences in pLOS between black and white patients undergoing colorectal surgery. Reduced pLOS occurred without increases in mortality, readmissions, and most postoperative complications. ERAS may provide a practical approach to reducing disparities in surgical outcomes.

The Obese Colorectal Surgery Patient: Surgical Site Infection and Outcomes.

BACKGROUND: Obese patients undergoing colorectal surgery are at increased risk for adverse outcomes. It remains unclear whether these risks can be further defined with more discriminatory stratifications of obesity. OBJECTIVE: The purpose of this study was to understand the association between BMI and 30-day postoperative outcomes, including surgical site infection, among patients undergoing colorectal surgery. DESIGN: This was a retrospective cohort study. SETTINGS: The 2011-2013 American College of Surgeons National Surgical Quality Improvement Program database was used. PATIENTS: Patients included those undergoing elective colorectal surgery in 2011-2013 who were assessed by the American College of Surgeons National Surgical Quality Improvement Program. MAIN OUTCOME MEASURES: BMI was categorized into World Health Organization categories. Primary outcome was 30-day postoperative surgical site infection. Secondary outcomes included all American College of Surgeons National Surgical Quality Improvement Program-assessed 30-day postoperative complications. RESULTS: Our cohort included 74,891 patients with 4.4% underweight (BMI <18.5), 29.0% normal weight (BMI 18.5-24.9), 33.0% overweight (BMI 25.0-29.9), 19.8% obesity class I (BMI 30.0-34.9), 8.4% obesity class II (BMI 35.0-39.9), and 5.5% obesity class III (BMI ≥40.0). Compared with normal-weight patients, obese patients experienced incremental odds of surgical site infection from class I to class III (I: OR = 1.5 (95% CI, 1.4-1.6); II: OR = 1.9 (95% CI, 1.7-2.0); III: OR = 2.1 (95% CI, 1.9-2.3)). Obesity class III patients were most likely to experience wound disruption, sepsis, respiratory or renal complication, and urinary tract infection. Mortality was highest among underweight patients (OR = 1.3 (95% CI, 1.0-1.8)) and lowest among overweight (OR = 0.8 (95% CI, 0.6-0.9)) and obesity class I patients (OR = 0.8 (95% CI, 0.6-1.0)). LIMITATIONS: Retrospective analysis of American College of Surgeons National Surgical Quality Improvement Program hospitals may not represent patients outside of the American College of Surgeons National Surgical Quality Improvement Program and cannot assign causation or account for interventions to improve surgical outcomes. CONCLUSIONS: Patients with increasing BMI showed an incremental and independent risk for adverse 30-day postoperative outcomes, especially surgical site infections. Strategies to address obesity preoperatively should be considered to improve surgical outcomes among this population. See Video Abstract at http://links.lww.com/DCR/A607.

The Fifth Vital Sign: Postoperative Pain Predicts 30-day Readmissions and Subsequent Emergency Department Visits.

OBJECTIVE: We hypothesized that inpatient postoperative pain trajectories are associated with 30-day inpatient readmission and emergency department (ED) visits. BACKGROUND: Surgical readmissions have few known modifiable predictors. Pain experienced by patients may reflect surgical complications and/or inadequate or difficult symptom management. METHODS: National Veterans Affairs Surgical Quality Improvement data on inpatient general, vascular, and orthopedic surgery from 2008 to 2014 were merged with laboratory, vital sign, health care utilization, and postoperative complications data. Six distinct postoperative inpatient patient-reported pain trajectories were identified: (1) persistently low, (2) mild, (3) moderate or (4) high trajectories, and (5) mild-to-low or (6) moderate-to-low trajectories based on postoperative pain scores. Regression models estimated the association between pain trajectories and postdischarge utilization while controlling for important patient and clinical variables. RESULTS: Our sample included 211,231 surgeries-45.4% orthopedics, 37.0% general, and 17.6% vascular. Overall, the 30-day unplanned readmission rate was 10.8%, and 30-day ED utilization rate was 14.2%. Patients in the high pain trajectories had the highest rates of postdischarge readmissions and ED visits (14.4% and 16.3%, respectively, P < 0.001). In multivariable models, compared with the persistently low pain trajectory, there was a dose-dependent increase in postdischarge ED visits and readmission for pain-related diagnoses, but not postdischarge complications (χ trend P < 0.001). CONCLUSIONS: Postoperative pain trajectories identify populations at risk for 30-day readmissions and ED visits, and do not seem to be mediated by postdischarge complications. Addressing pain control expectations before discharge may help reduce surgical readmissions in high pain categories.

Reduced disparities and improved surgical outcomes for Asian Americans with colorectal cancer.

BACKGROUND: Studies suggest Asian Americans may have improved oncologic outcomes compared with other ethnicities. We hypothesized that Asian Americans with colorectal cancer would have improved surgical outcomes in mortality, postoperative complications (POCs), length of stay (LOS), and readmissions compared with other racial/ethnic groups. METHODS: We queried the 2011-2014 American College of Surgeons National Surgical Quality Improvement Program for patients who underwent surgery for colorectal cancer and stratified patients by race. Primary outcome was 30-d mortality with secondary outcomes including POCs, LOS, and 30-d readmission. Stepwise backward logistic regression analyses and incident rate ratio calculations were performed to identify risk factors for disparate outcomes. RESULTS: Of the 28,283 patients undergoing colorectal surgery for malignancy, racial/ethnic groups were divided into Caucasian American (84%), African American (12%), or Asian American (4%). On unadjusted analyses, compared with other racial/ethnic groups, Asian Americans were more likely to have normal weight, not smoke, and had lower American Society of Anesthesiologists score of 1 or 2 (P < 0.001). Postoperatively, Asian Americans had the shortest LOS and the lowest rates of complications due to ileus, respiratory, and renal complications (P < 0.001). There were no racial differences in 30-d mortality or readmission. On adjusted analyses, Asian American race was independently associated with less postoperative ileus (odds ratio 0.8, 95% confidence interval 0.66-0.98, P < 0.001) and decreased LOS by 13% and 4% compared with African American and Caucasian American patients, respectively (P < 0.001). CONCLUSIONS: Asian Americans undergoing surgery for colorectal cancer have shorter LOS and fewer POCs when compared with other racial/ethnic groups without differences in 30-d mortality or readmissions. The mechanism(s) underlying these disparities will require further study, but may be a result of patient, provider, and healthcare system differences.

Preoperative opioid use and postoperative pain associated with surgical readmissions.

BACKGROUND: The extent of preoperative opioid utilization and the relationship with pain-related readmissions are not well understood. METHODS: VA Surgical Quality Improvement Program data on general, vascular, and orthopedic surgeries (2007-2014) were merged with pharmacy data to evaluate preoperative opioid use and pain-related readmissions. Opioid use in the 6-month preoperative period was categorized as none, infrequent, frequent, and daily. RESULTS: In the six-month preoperative period, 65.7% had no opioid use, 16.7% had infrequent use, 6.3% frequent use, and 11.4% were daily opioid users. Adjusted odds of pain-related readmission were higher for opioid-exposed groups vs the opioid-naïve group: infrequent (OR 1.17; 95% CI:1.04-1.31), frequent (OR 1.28; 95% CI:1.08-1.52), and daily (OR 1.49; 95% CI:1.27-1.74). Among preoperative opioid users, those with a pain-related readmission had higher daily preoperative oral morphine equivalents (mean 44.5 vs. 36.1, p < 0.001). CONCLUSIONS: Patients using opioids preoperatively experienced higher rates of pain-related readmissions, which increased with frequency and dosage of opioid exposure.

Enhanced Recovery After Surgery and Surgical Disparities.

Surgical disparities exist. Certain surgical populations suffer from disproportionately worse access, care, and outcomes in surgery. Opportunities exist to better identify, understand, and reduce these disparities. Enhanced Recovery After Surgery (ERAS) pathways use standardized perioperative processes and a multidisciplinary philosophy to deliver best-evidence surgical care to all patients. As a result, ERAS provides a uniquely pragmatic model for improving outcomes and reducing disparities in vulnerable surgical populations. The value of ERAS may therefore extend beyond its traditional benefits to the even greater pursuit of health equity.

Association Between Preoperative Proteinuria and Postoperative Acute Kidney Injury and Readmission.

Importance: Proteinuria indicates renal dysfunction and is a risk factor for morbidity among medical patients, but less is understood among surgical populations. There is a paucity of studies investigating how preoperative proteinuria is associated with surgical outcomes, including postoperative acute kidney injury (AKI) and readmission. Objective: To assess preoperative urine protein levels as a biomarker for adverse surgical outcomes. Design, Setting, and Participants: A retrospective, population-based study was conducted in a cohort of patients with and without known preoperative renal dysfunction undergoing elective inpatient surgery performed at 119 Veterans Affairs facilities from October 1, 2007, to September 30, 2014. Data analysis was conducted from April 4 to December 1, 2016. Preoperative dialysis, septic, cardiac, ophthalmology, transplantation, and urologic cases were excluded. Exposures: Preoperative proteinuria as assessed by urinalysis using the closest value within 6 months of surgery: negative (0 mg/dL), trace (15-29 mg/dL), 1+ (30-100 mg/dL), 2+ (101-300 mg/dL), 3+ (301-1000 mg/dL), and 4+ (>1000 mg/dL). Main Outcomes and Measures: Primary outcome was postoperative predischarge AKI and 30-day postdischarge unplanned readmission. Secondary outcomes included any 30-day postoperative outcome. Results: Of 346 676 surgeries, 153 767 met inclusion criteria, with the majority including orthopedic (37%), general (29%), and vascular procedures (14%). Evidence of proteinuria was shown in 43.8% of the population (trace: 20.6%, 1+: 16.0%, 2+: 5.5%, 3+: 1.6%) with 20.4%, 14.9%, 4.3%, and 0.9%, respectively, of the patients having a normal preoperative estimated glomerular filtration rate (eGFR). In unadjusted analysis, preoperative proteinuria was significantly associated with postoperative AKI (negative: 8.6%, trace: 12%, 1+: 14.5%, 2+: 21.2%, 3+: 27.6%; P < .001) and readmission (9.3%, 11.3%, 13.3%, 15.8%, 17.5%, respectively, P < .001). After adjustment, preoperative proteinuria was associated with postoperative AKI in a dose-dependent relationship (trace: odds ratio [OR], 1.2; 95% CI, 1.1-1.3, to 3+: OR, 2.0; 95% CI, 1.8-2.2) and 30-day unplanned readmission (trace: OR, 1.0; 95% CI, 1.0-1.1, to 3+: OR, 1.3; 95% CI, 1.1-1.4). Preoperative proteinuria was associated with AKI independent of eGFR. Conclusions and Relevance: Proteinuria was associated with postoperative AKI and 30-day unplanned readmission independent of preoperative eGFR. Simple urine assessment for proteinuria may identify patients at higher risk of AKI and readmission to guide perioperative management.

Association Between Preoperative Hemoglobin A1c Levels, Postoperative Hyperglycemia, and Readmissions Following Gastrointestinal Surgery.

IMPORTANCE: Preoperative hyperglycemia is associated with adverse postoperative outcomes among patients who undergo surgery. Whether preoperative hemoglobin A1c (HbA1c) or postoperative glucose levels are more useful in predicting adverse events following surgery is uncertain in the current literature. OBJECTIVE: To examine the use of preoperative HbA1c and early postoperative glucose levels for predicting postoperative complications and readmission. DESIGN, SETTING, AND PARTICIPANTS: In this observational cohort study, inpatient gastrointestinal surgical procedures performed at 117 Veterans Affairs hospitals from 2007 to 2014 were identified, and cases of known infection within 3 days before surgery were excluded. Preoperative HbA1c levels were examined as a continuous and categorical variable (<5.7%, 5.7%-6.5%, and >6.5%). A logistic regression modeled postoperative complications and readmissions with the closest preoperative HbA1c within 90 days and the highest postoperative glucose levels within 48 hours of undergoing surgery. MAIN OUTCOMES AND MEASURES: Postoperative complications and 30-day unplanned readmission following discharge. RESULTS: Of 21 541 participants, 1193 (5.5%) were women, and the mean (SD) age was 63.7 (10.6) years. The cohort included 23 094 operations with measurements of preoperative HbA1c levels and postoperative glucose levels. The complication and 30-day readmission rates were 27.2% and 14.7%, respectively. In logistic regression models adjusting for HbA1c, postoperative glucose levels, postoperative insulin use, diabetes, body mass index (calculated as weight in kilograms divided by height in meters squared), and other patient and procedural factors, peak postoperative glucose levels of more than 250 mg/dL were associated with increased 30-day readmissions (odds ratio, 1.18; 95% CI, 0.99-1.41; P = .07). By contrast, a preoperative HbA1c of more than 6.5% was associated with decreased 30-day readmissions (odds ratio, 0.85; 95% CI, 0.74-0.96; P = .01). As preoperative HbA1c increased, the frequency of 48-hour postoperative glucose checks increased (4.92, 6.89, and 9.71 for an HbA1c <5.7%, 5.7%-6.4%, and >6.5%, respectively; P < .001). Patients with a preoperative HbA1c of more than 6.5% had lower thresholds for postoperative insulin use. CONCLUSIONS AND RELEVANCE: Early postoperative hyperglycemia was associated with increased readmission, but elevated preoperative HbA1c was not. A higher preoperative HbA1c was associated with increased postoperative glucose level checks and insulin use, suggesting that heightened postoperative vigilance and a lower threshold to treat hyperglycemia may explain this finding.

Association of the Modified Frailty Index With 30-Day Surgical Readmission.

IMPORTANCE: Frail patients are known to have poor perioperative outcomes. There is a paucity of literature investigating how the Modified Frailty Index (mFI), a validated measure of frailty, is associated with unplanned readmission among military veterans following surgery. OBJECTIVE: To understand the association between frailty and 30-day postoperative unplanned readmission. DESIGN, SETTING, AND PARTICIPANTS: A retrospective cohort study was conducted among adult patients who underwent surgery and were discharged alive from Veterans Affairs hospitals for orthopedic, general, and vascular conditions between October 1, 2007, and September 30, 2014, with a postoperative length of stay between 2 and 30 days. EXPOSURE: Frailty, as calculated by the 11 variables on the mFI. MAIN OUTCOMES AND MEASURES: The primary outcome of interest is 30-day unplanned readmission. Secondary outcomes included any 30-day predischarge or postdischarge complication, 30-day postdischarge mortality, and 30-day emergency department visit. RESULTS: The study sample included 236 957 surgical procedures (among 223 877 men and 13 080 women; mean [SD] age, 64.0 [11.3] years) from high-volume surgical specialties: 101 348 procedures (42.8%) in orthopedic surgery, 92 808 procedures (39.2%) in general surgery, and 42 801 procedures (18.1%) in vascular surgery. The mFI was associated with readmission (odds ratio [OR], 1.11; 95% CI, 1.10-1.12; R2 = 10.3%; C statistic, 0.71). Unadjusted rates of overall 30-day readmission (26 262 [11.1%]), postdischarge emergency department visit (34 204 [14.4%]), any predischarge (13 855 [5.9%]) or postdischarge (14 836 [6.3%]) complication, and postdischarge mortality (1985 [0.8%]) varied by frailty in a dose-dependent fashion. In analysis by individual mFI components using Harrell ranking, impaired functional status, identified as nonindependent functional status (OR, 1.16; 95% CI, 1.11-1.21; P < .01) or having a residual deficit from a prior cerebrovascular accident (OR, 1.17; 95% CI, 1.11-1.22; P < .01), contributed most to the ability of the mFI to anticipate readmission compared with the other components. Acutely impaired sensorium (OR, 1.12; 95% CI, 0.99-1.27; P = .08) and history of a myocardial infarction within 6 months (OR, 0.93; 95% CI, 0.81-1.06; P = .28) were not significantly associated with readmission. CONCLUSIONS AND RELEVANCE: The mFI is associated with poor surgical outcomes, including readmission, primarily due to impaired functional status. Targeting potentially modifiable aspects of frailty preoperatively, such as improving functional status, may improve perioperative outcomes and decrease readmissions.

Hospital Readmissions after Surgery: How Important Are Hospital and Specialty Factors?

BACKGROUND: Hospital readmission rates after surgery can represent an overall hospital effect or a combination of specialty and patient effects. We hypothesized that hospital readmission rates for procedures within specialties were more strongly correlated than rates across specialties within the same hospital. STUDY DESIGN: For general, orthopaedic, and vascular specialties at Veterans Affairs hospitals during 2008 to 2014, 30-day risk-adjusted readmission rates were estimated for 6 high-volume procedures and each specialty. Relationships were assessed using the Pearson correlation coefficient. RESULTS: At 84 hospitals, 64,724 orthopaedic, 24,963 general, and 10,399 vascular inpatient procedures were performed; mean readmission rates were 6.3%, 13.6%, and 16.4%, respectively. There was no correlation between specialty-specific adjusted hospital readmission rates: general and orthopaedic (r = 0.21; p = 0.06), general and vascular (r = 0.15; p = 0.19), and vascular and orthopaedic surgery (r = 0.07; p = 0.55). Within specialties, we found modest correlations between knee and hip arthroplasty readmission rates (r = 0.39; p < 0.01) and colectomy and ventral hernia repair (r = 0.24; p = 0.03), but not between lower-extremity bypass and endovascular aortic repair (r = 0.13; p = 0.26). Overall, controlling for patient-level factors, 1.9% of the variation in readmissions was attributable to specialty-level factors; only 0.6% was attributable to hospital-level factors. CONCLUSIONS: Hospital readmission rates for orthopaedic, vascular, and general surgery were not correlated between specialties; within each of the 3 specialties, modest correlations were found between 2 procedures within 2 of these specialties. These findings suggest that hospital surgical readmission rates are primarily explained by patient- and procedure-specific factors and less by broader specialty and/or hospital effects.

Transitional care interventions and hospital readmissions in surgical populations: a systematic review.

BACKGROUND: Despite hospital readmission being a targeted quality metric, few studies have focused on the surgical patient population. We performed a systematic review of transitional care interventions and their effect on hospital readmissions after surgery. DATA SOURCES: PubMed was searched for studies evaluating transitional care interventions in surgical populations within the years 1995 to 2015. Of 3,527 abstracts identified, 3 randomized controlled trials and 7 observational cohort studies met inclusion criteria. CONCLUSIONS: Discharge planning programs reduced readmissions by 11.5% (P = .001), 12.5% (P = .04), and 23% (P = .26). Patient education interventions reduced readmissions by 14% (P = .28) and 23.5% (P < .05). Primary care follow-up reduced readmissions by 8.3% for patients after high-risk surgeries (P < .001). Home visits reduced readmissions by 7.69% (P = .023) and 4% (P = .161), respectively. Therefore, improving discharge planning, patient education, and follow-up communication may reduce readmissions.