Uncovering Risk Factors and Outcomes of Pulmonary Embolism in a Nationwide Cohort of Hospitalized Children

PURPOSE

The incidence of pulmonary embolism (PE) in hospitalized children has increased in recent years. This study sought to characterize factors and outcomes associated with PE using a national pediatric cohort.

METHODS

The Nationwide Readmissions Database was queried (2016-2018) for patients (<18 years) with a diagnosis of PE. Index and prior hospitalizations (PHs) within 1 year were analyzed. A binary logistic regression utilizing 37 covariates (demographics, procedures, comorbidities, etc.) was constructed to examine a primary outcome of in-hospital mortality.

RESULTS

3440 patients were identified (57% female) with the majority >12 years old (77%). One-third had a known deep vein thrombosis (69% lower and 31% upper extremity). Nineteen percent underwent central venous catheter (CVC) placement. Twenty-one percent had a PH within 1 year. Nine percent underwent an operation with the majority being cardiothoracic (5%). Overall mortality was 5%. Neurocranial surgery, cardiothoracic surgery, and CVC placement were associated with the highest odds of inpatient mortality after logistic regression.

CONCLUSION

Pediatric patients with PE have a high rate of PHs, CVC placement, and inpatient operations, which may be associated with higher mortality. This information can be utilized to improve screening measures and clinical suspicion for PE in hospitalized children.

Outcomes After Pectus Excavatum Repair: Center Volume Matters

PURPOSE

Pectus excavatum (Pectus) repair may be offered for those with significant cardiopulmonary compromise or severe cosmetic defects. The influence of hospital center volume on postoperative outcomes in children is unknown. This study aimed to investigate the outcomes of children undergoing Pectus repair, stratified by hospital surgical volume.

METHODS

The Nationwide Readmission Database was queried (2016-2020) for patients with Pectus (Q67.6). Patients were stratified into those who received repair at high-volume centers (HVCs; ≥20 repairs annually) versus low-volume centers (LVCs; <20 repairs annually). Demographics and outcomes were analyzed using standard statistical tests.

RESULTS

A total of 9414 patients with Pectus underwent repair during the study period, with 69% treated at HVCs and 31% at LVCs. Patients at LVCs experienced higher rates of complications during index admission, including pneumothorax (23% vs. 15%), chest tube placement (5% vs. 2%), and overall perioperative complications (28% vs. 24%) compared to those treated at HVCs, all p < 0.001. Patients treated at LVCs had higher readmission rates within 30 days (3.8% vs. 2.8% HVCs) and overall readmission (6.8% vs. 4.7% HVCs), both p < 0.010. Among readmitted patients (n = 547), the most frequent complications during readmission for those initially treated at LVCs included pneumothorax/hemothorax (21% vs. 8%), bar dislodgment (21% vs. 12%), and electrolyte disorders (15% vs. 9%) compared to those treated at HVCs.

CONCLUSION

Pediatric Pectus repair performed at high-volume centers was associated with fewer index complications and readmissions compared to lower-volume centers. Patients and surgeons should consider this hospital volume-outcome relationship.

TYPE OF STUDY

Retrospective Comparative.

LEVEL OF EVIDENCE

III.

The Impact of Redosing Antibiotics for Pediatric Patients Undergoing Appendectomy for Complicated Appendicitis

Currently, there is no universally accepted, standardized protocol for pre-operative antibiotic administration in the setting of appendectomy for complicated appendicitis among pediatric patients. Strategies to mitigate surgical site infections (SSIs) must be balanced with optimal antibiotic use and exposure. We conducted a retrospective chart review to compare outcomes between patients treated pre-operatively with a single pre-operative dose of antibiotics with those who received additional antibiotics prior to laparoscopic appendectomy for complicated appendicitis between 2020 and 2022. Of 124 pediatric patients, 18% received an additional dose of pre-operative antibiotics after initial treatment dose. Surgical site infection rates between the two groups were not statistically significant (P-value = .352), thereby suggesting that redosing antibiotics closer to the time of incision may not impact SSI rates. Additional studies are necessary to make clinical recommendations.

Venous Thromboembolism in Children and Teenagers Admitted for Trauma: A 5-Year Nationwide Perspective

Venous thromboembolism (VTE) in pediatric trauma patients is under-investigated. The purpose of this study was to perform an evaluation of the risk factors for VTE after pediatric trauma, including readmissions across the United States. The Nationwide Readmissions Database for 2016-2020 was queried for all patients under the age of 18 years admitted for trauma. 276 670 patients were identified; 2063 (.8%) were diagnosed with VTE. Among those with VTE, 300 (15%) were identified during a readmission. Higher rates of VTE were seen in ages 15-17 years (n = 1,294, 1.3%, P < .001), penetrating injuries (n = 478, .9%, P < .001), and assault (n = 271, 2.7%, P < .001). The strongest risk factor for VTE was prolonged mechanical ventilation (OR 5.5 [4.9-6.3] P < .001). Our study found that a significant portion of post-traumatic VTE in children and teenagers occur during readmissions. A deeper understanding of the risk factors outlined here can guide enhanced clinical protocols, ensuring early detection and prevention of this complication.

Optimizing Triage Practice in Pediatric Trauma: Lessons From Under-triage and Over-triage Rates and Risk Factors

BACKGROUND

Triage accuracy is essential for delivering effective trauma care, especially in the pediatric population where unique challenges exist. The purpose of this study was to investigate risk factors contributing to under-triage and over-triage in an urban pediatric trauma center.

METHODS

This retrospective cohort study included all trauma activations at an urban level 1 trauma center between January 1, 2021, and July 31, 2023 (patients <18 years old.) Patients who were under- or over-triaged were identified based on the level of trauma activation and injury severity score.

RESULTS

There were 1094 trauma activations included in this study. The rate of under-triage was 3.8% (n = 42) and over-triage was 13.6% (n = 149). Infants aged 0-1 years had the highest rate of under-triage (10.9%, n = 19, P < .001), while those aged 11-17 had the highest rate of over-triage (17.0%, n = 82, P = .003). Non-accidental trauma was the strongest risk factor for under-triage (OR 30.2 [6.4-142.8] P < .001). Penetrating mechanism was the strongest risk factor for over-triage (OR 12.2 [5.6-26.2] P < .001).

DISCUSSION

This study reveals the complexity of trauma triage in the pediatric population. We identified key predictive factors, such as age, comorbidities, and mechanism of injury, that can be used to refine triage practices and improve the care of pediatric trauma patients.

Timing of Pediatric Incarcerated Inguinal Hernia Repair: A Review of Nationwide Readmissions Data

INTRODUCTION

In pediatric patients, incarcerated inguinal hernias are often repaired on presentation. We hypothesize that in appropriate patients, repair may be safely deferred.

METHODS

The Nationwide Readmissions Database was used to identify pediatric patients (aged < 18 y) with incarcerated inguinal hernia from 2010 to 2014. Patients were stratified by management approach (Early Repair versus Deferral). Overall frequencies of these operative strategies were calculated. Propensity score matching was then performed to control for patient age, comorbidities, perinatal conditions, and congenital anomalies. Outcomes including complications, surgical procedures, and readmissions were compared. Outpatient surgeries were not assessed.

RESULTS

Among 6148 total patients with incarcerated inguinal hernia, the most common strategy was to perform Early Repair (88% versus 12% Deferral). Following propensity score matching, the cohort included 1288 patients (86% male, average age 1.7 ± 4.1 years). Deferral was associated with equivalent rates of readmission within one year (13% versus 15%, P = 0.143), but higher readmissions within the first 30 days (7% versus 3%, P = 0.002) than Early Repair. Deferral patients had lower rates of orchiectomy (2% versus 5%, P = 0.001), wound infections (< 2% versus 2%, P = 0.020), and other infections (7% versus 15%, P < 0.001). The frequency of other complications including bowel resection, oophorectomy, testicular atrophy, sepsis, and pneumonia were equivalent between groups. Three percent of Deferrals had a diagnosis of incarceration on readmission.

CONCLUSIONS

Deferral of incarcerated inguinal hernia repair at index admission is associated with higher rates of hospital readmissions within the first 30 days but equivalent readmission within the entire calendar year. These patients are at risk of repeat incarceration but have significantly lower rates of orchiectomy than their counterparts who undergo inguinal hernia repair at the index admission. We propose that prospective studies be performed to identify good candidates for Elective Deferral following manual reduction and overnight observation. Such studies must capture outpatient surgical outcomes.

Nationwide Propensity-Matched Comparison of Surgical Site Infections in Safety Net Hospitals

This cohort study examines the rates and risks associated with surgical site infection during admission or readmission of socioeconomically marginalized patients undergoing gastrointestinal surgery.

Immediate Versus Delayed Surgical Management of Infant Cryptorchidism With Inguinal Hernia

INTRODUCTION

Cryptorchidism is commonly treated with orchiopexy at 6-12 months of age, often allowing time for undescended testicle(s) (UT) to descend spontaneously. However, when an inguinal hernia (IH) is also present, some surgeons perform orchiopexy and inguinal hernia repair (IHR) immediately rather than delaying surgery. We hypothesize that early surgical intervention provides no benefit for newborns with both IH and UT.

METHODS

The Nationwide Readmissions Database was used to identify newborns with diagnoses of both IH and UT from 2010 to 2014. Patients were stratified by management: IHR performed on initial admission (Repair) or not (Deferral). Demographics, outcomes, and complications were compared. Results were weighted for national estimates.

RESULTS

We analyzed 1306 newborns (64% premature) diagnosed with both IH and UT. IHR was performed at index admission in 30%. Repair was more common in premature babies (43% vs. 8% full-term, p < 0.001) and patients with congenital anomalies (33% vs. 27% without congenital anomaly, p = 0.012). There was no difference in readmission rates. Repair patients had higher rates of orchiectomy than did Deferral. No Deferral patients were readmitted for bowel resection, and <1% were readmitted for orchiectomy or hernia incarceration.

CONCLUSION

In newborns with UT and IH, immediate repair is not associated with improved outcomes. Even with incarceration on initial presentation, rates of readmission with incarceration or bowel compromise for patients who undergo Deferral of surgery are minimal. Moreover, Repair newborns have higher rates of orchiectomy. We found no benefit to early operative intervention; thus, we recommend waiting until 6-12 months of age to reassess for surgery.

LEVEL OF EVIDENCE

Level III TYPE OF STUDY: Retrospective Comparative Study.

Outcomes of Incidental Appendectomy During Ovarian Operations in a National Pediatric Cohort

INTRODUCTION

The utility of incidental appendectomy (IA) during many ovarian operations has not been evaluated in the pediatric population. This study sought to compare outcomes after ovarian surgery with IA in the pediatric population.

METHODS

Females (≤20 y old) undergoing ovarian surgeries (oophorectomy, detorsion and/or drainage) were identified from the Nationwide Readmissions Database (2016-2018). Those with appendicitis were excluded. A propensity score-matched analysis (PSMA) with 46 covariates (demographics, comorbidities, hospitalization factors, etc.) was performed between those receiving ovarian surgery with or without IA.

RESULTS

There were 13,202 females (median age 17 [IQR 14-20] y old) who underwent oophorectomy (90%), detorsion (26%), and/or ovarian drainage (13%). There were more episodes of torsion in the PSMA cohort receiving ovarian surgery alone (17% versus 10% IA; P = 0.016), while other indications (ovarian mass, cyst) were similar. Open (66% versus 34% laparoscopic) IAs were more frequent. Length of stay (LOS) was longer for those undergoing IA (3 [2-4] versus 2 [2-4] days ovarian surgery alone; P < 0.001). There was a higher rate of postoperative GI complications in the IA cohort. Subgroup analysis of those undergoing laparoscopic operations demonstrated no difference in LOS or postoperative complications between patients undergoing IA or not.

CONCLUSIONS

These data indicate that IA in pediatric ovarian operations is associated with longer LOS and higher GI postoperative complications. However, laparoscopic IA was not associated with higher cost, complications, LOS, or readmissions. This suggests that IA performed during ovarian surgeries in select patients may be cost-effective and worthy of future study.

Financial Toxicity in Emergency General Surgery: Novel Propensity-Matched Outcome Comparison

BACKGROUND

Financial toxicity describes the harmful effect of individual treatment costs and fiscal burdens that have a compounding negative impact on outcomes in surgery. While this phenomenon has been widely studied in surgical oncology, the purpose of this study was to perform a novel exploration of the impact of financial toxicity in emergency general surgery (EGS) patients throughout the US.

STUDY DESIGN

The Nationwide Readmissions Database for January and February 2018 was queried for all EGS patients aged 18 to 65 years. One-to-one propensity matching was performed with and without risk for financial toxicity. The primary outcome was mortality, and the secondary outcomes were venous thromboembolism (VTE), prolonged length of stay (LOS), and readmission within 30 days.

RESULTS

There were 24,154 EGS patients propensity matched. The mortality rate was 0.2% (n = 39), and the rate of VTE was 0.5% (n = 113). With financial toxicity, there was no statistically significant difference for mortality (p = 0.08) or VTE (p = 0.30). The rate of prolonged LOS was 6.2% (n = 824), and the risk was increased with financial toxicity (risk ratio 1.24 [1.12 to 1.37]; p < 0.001). The readmission rate was 7.0% (n = 926), and the risk with financial toxicity was increased (risk ratio 1.21 [1.10 to 1.33]; p < 0.001). The mean count of comorbidities per patient per admission during readmission within 1 year with financial toxicity was 2.1 ± 1.9 versus 1.8 ± 1.7 without (p < 0.001).

CONCLUSIONS

Despite little difference in the rate of mortality or VTE, EGS patients at risk for financial toxicity have an increased risk of readmission and longer LOS. Fewer comorbidities were identified at index admission than during readmission in patients at risk for financial toxicity. Future studies aimed at reducing this compounding effect of financial toxicity and identifying missed comorbidities have the potential to improve EGS outcomes.

Outcomes of laparoscopic versus open resection of pediatric choledochal cyst

BACKGROUND

Untreated pediatric choledochal cyst (CC) is associated with complications including cholangitis, pancreatitis, and risk of malignancy. Therefore, CC is typically treated by surgical excision with biliary reconstruction. Both open and laparoscopic (lap) surgical approaches are regularly used, but outcomes have not been compared on a national level.

METHODS

The Nationwide Readmissions Database was used to identify pediatric patients (age 0-21 years, excluding newborns) with choledochal cyst from 2016 to 2018 based on ICD-10 codes. Patients were stratified by operative approach (open vs. lap). Demographics, operative management, and complications were compared using standard statistical tests. Results were weighted for national estimates.

RESULTS

Choledochal cyst excision was performed in 577 children (75% female) via lap (28%) and open (72%) surgical approaches. Patients undergoing an open resection experienced longer index hospital length of stay (LOS), higher total cost, and more complications. Anastomotic technique differed by approach, with Roux-en-Y hepaticojejunostomy (RYHJ) more often utilized with open cases (86% vs. 29%) and hepaticoduodenostomy (HD) more common with laparoscopic procedures (71% vs. 15%), both p < 0.001. There was no significant difference in post-operative cholangitis or mortality.

CONCLUSIONS

Although utilized less frequently than an open approach, laparoscopic choledochal cyst resection is safe in pediatric patients and is associated with shorter LOS, lower costs, and fewer complications. HD anastomosis is more commonly performed during laparoscopic procedures, whereas RYHJ more commonly used with the open approach. While HD is associated with more short-term gastrointestinal dysfunction than RYHJ, the latter is more commonly associated with sepsis, wound infection, and respiratory dysfunction.

LEVEL OF EVIDENCE

Level III: Retrospective Comparative Study.

Comparing Severely Injured Trauma Patients Admitted to Investor-Owned versus Public and Not-For-Profit Hospitals Reveals Opportunities for Improvement in the US

BACKGROUND

Non-elderly trauma patients represent the largest portion of preventable years of life loss in the US. The purpose of this study was to compare outcomes in patients admitted to investor-owned vs public and not-for-profit hospitals across the US.

MATERIAL AND METHODS

The Nationwide Readmissions Database 2018 was queried for trauma patients with an Injury Severity Score greater than 15 and age 18-65 years. The primary outcome was mortality; secondary outcomes were prolonged length of stay (LOS) greater than 30 days, readmission within 30 days, and readmission to a different hospital. Patients admitted to investor-owned hospitals were compared to public and not-for-profit hospitals. Univariable analysis was performed using chi-squared tests. Multivariable logistic regression was performed for each outcome.

RESULTS

157 945 patients were included with 11.0% (n = 17 346) admitted to investor-owned hospitals. The overall mortality rate and prolonged LOS were similar for both groups. The overall readmission rate was 9.2% (n = 13 895), with the rate in investor-owned hospitals at 10.5% (n = 1,739, P < .001). Multivariable logistic regression revealed investor-owned hospitals had an increased risk of readmission (OR 1.2 [1.1-1.3] P < .001) and readmission to a different hospital (OR 1.3 [1.2-1.5] P < .001).

DISCUSSION

Severely injured trauma patients have similar rates of mortality and prolonged length of stay in investor-owned vs public and not-for-profit hospitals. However, patients admitted to investor-owned hospitals have an increased risk of readmission and readmission to different hospitals. Efforts to improve outcomes after trauma must consider hospital ownership and readmission to different hospitals.

Comparing Payments to Surgeons From Drug and Medical Device Corporations Reveals Inequalities Between Genders and Specialties

INTRODUCTION

Maintaining trust in the patient-doctor relationship requires transparency in the details of the financial relationships between physicians and drug and medical device corporations. These details are publicly available through the Open Payments database, and patients are encouraged to ask surgeons to interpret their implications. The purpose of this study was to better equip surgeons in responding to these inquiries and to compare the distribution of these payments by gender and specialty.

METHODS

The 2021 Open Payments dataset was searched for all payments to surgeons from the 14 different specialties recognized by the American College of Surgeons. The total payments per surgeon were compared by calculating the mean and median payments. The Gini index, a measure of income inequality, was also calculated for each specialty.

RESULTS

There were 96 724 surgeons who received over $755 million in payments from drug and medical device companies. There were 72 245 (74.7%) men and 24 479 (25.3%) women. The total amount of payments to men was $712 million (94.2%) and for women it was $44 million (5.8%). The overall Gini index was .9508. The specialty with the highest Gini index was pediatric surgery (.9844) and the lowest was cardiothoracic surgery (.8656).

DISCUSSION

Male surgeons received disproportionately higher payments from drug and device corporations than female surgeons. Surgeons should be aware of their own standing within the Open Payments database in order to respond appropriately to patient inquiries.

Nationwide Outcomes of Immediate Versus Staged Surgery for Newborns with Rectosigmoid Hirschsprung Disease

PURPOSE

Debate exists on whether patients with Hirschsprung Disease (HD) should undergo immediate resection during their newborn hospitalization or undergo a staged procedure. This study sought to compare postoperative outcomes among newborns receiving immediate versus staged surgery for rectosigmoid HD.

METHODS

The Nationwide Readmission Database was queried (2016-2018) for newborns with HD who underwent surgical resection during their newborn hospitalization (immediate) versus planned readmission (staged). Those who did not receive rectal biopsy or had long-segment or total colonic HD were excluded. A propensity score-matched analysis (PSMA) of patients receiving either surgery was constructed utilizing >70 comorbidities. Outcomes were analyzed using standard statistical tests.

RESULTS

1,048 newborns with HD were identified (56% immediate vs. 44% staged). Staged resection was associated with higher total hospitalization cost ($56,642 vs. $50,166 immediate), p = 0.014. After PSMA, the staged cohort was more likely to require home healthcare at discharge and experience unplanned readmission (40% vs. 23%). These patients experienced more gastrointestinal complications (40% vs. 22%) on readmission, especially Hirschsprung-associated enterocolitis (35% vs. 20%).

CONCLUSION

Newborns receiving staged procedures for HD experience higher rates of unplanned readmission complications and incur higher hospitalization costs. This information should be utilized to defray healthcare utilization costs for newborns with HD.

TYPE OF STUDY

Retrospective Comparative.

LEVEL OF EVIDENCE

III.

Outcomes after Ladd Procedures for Intestinal Malrotation in Newborns with Heterotaxy Syndrome

PURPOSE

Intestinal malrotation may be asymptomatic in patients with heterotaxy syndrome (HS), and whether these newborns benefit from prophylactic Ladd procedures is unknown. This study sought to uncover nationwide outcomes of newborns with HS receiving Ladd procedures.

METHODS

Newborns with malrotation were identified from the Nationwide Readmission Database (2010-2014) and stratified into those with and without HS utilizing ICD-9CM codes for situs inversus (759.3), asplenia or polysplenia (759.0), and/or dextrocardia (746.87). Outcomes were analyzed using standard statistical tests.

RESULTS

4797 newborns with malrotation were identified, of which 16% had HS. Ladd procedures were performed in 70% overall and more common in those without heterotaxy (73% vs. 56% HS). Ladd procedures in newborns with heterotaxy were associated with higher complications compared to those without HS including surgical site reopening (8% vs. 1%), sepsis (9% vs. 2%), infections (19% vs. 11%), venous thrombosis (9% vs. 1%), and prolonged mechanical ventilation (39% vs. 22%), all p < 0.001. HS newborns were less frequently readmitted with bowel obstructions (0% vs. 4% without HS, p < 0.001) with no readmissions for volvulus in either group.

CONCLUSION

Ladd procedures in newborns with heterotaxy were associated with increased complications and cost without differences in rates of volvulus and bowel obstruction on readmission.

TYPE OF STUDY

Retrospective Comparative.

LEVEL OF EVIDENCE

III.

Underutilization of laparoscopy for ovarian surgeries in the pediatric population: A nationwide analysis

PURPOSE

Oophorectomy and ovarian detorsion are some of the most frequent operations performed in the female pediatric population. Despite the advent of laparoscopy, many surgeons continue to utilize open surgical approaches in these patients. This study sought to compare nationwide trends and postoperative outcomes in laparoscopic and open ovarian operations in the pediatric population.

METHODS

Females less than 21 years old who underwent ovarian operations (oophorectomy, detorsion, and/or drainage) from 2016 to 2017 were identified from the Nationwide Readmissions Database. Patients were stratified by surgical approach (laparoscopic or open). Hospital characteristics and outcomes were compared using standard statistical tests.

RESULTS

There were 13,202 females (age 17 [14-20] years) who underwent open (59%) or laparoscopic (41%) ovarian operations. The most common indications for surgery were ovarian mass (48%), cyst (36%), and/or torsion (19%) for which oophorectomy (88%), detorsion (26%), and drainage (13%) were performed most frequently. The open approach was utilized more frequently for oophorectomy (95% vs. 77% laparoscopic) and detorsion (33% vs. 16% laparoscopic), both p < 0.001. A greater proportion of laparoscopic procedures were performed at large (67% vs. 61% open), teaching (82% vs. 76% open) hospitals in patients with private insurance (47% vs. 42% open), all p < 0.001. Patients undergoing open procedures had significantly higher index length of stay (LOS) and rates of wound infections. Thirty-day and overall readmission rates, as well as overall readmission costs, were higher in patients who received open surgeries.

CONCLUSIONS

Despite fewer overall complications, decreased cost, fewer readmissions, and shorter LOS, laparoscopic approaches are underutilized for pediatric ovarian procedures.

TYPE OF STUDY

Retrospective Comparative.

LEVEL OF EVIDENCE

Level III.

Nationwide outcomes of newborns with rectosigmoid versus long-segment Hirschsprung disease

PURPOSE

Hirschsprung Disease (HD) is a common congenital intestinal disorder. While aganglionosis most commonly affects the rectosigmoid colon (rectosigmoid HD), outcomes for patients in which aganglionosis extends to more proximal segments (long-segment HD) remain understudied. This study sought to compare postoperative outcomes among newborns with rectosigmoid and long-segment HD.

METHODS

The Nationwide Readmission Database was queried from 2016 to 2018 for newborns with HD. Newborns were stratified into those with rectosigmoid or long-segment HD. Those who received no rectal biopsy or pull-through procedure during their newborn hospitalization were excluded. A propensity score-matched analysis (PSMA) of newborns with either type of HD was constructed utilizing 17 covariates including demographics, comorbidities, and congenital-perinatal conditions.

RESULTS

There were 1280 newborns identified with HD (82% rectosigmoid HD, 18% long-segment HD). Patients with rectosigmoid HD had higher rates of laparoscopic resections (35% vs. 12%) and less frequently received a concomitant ostomy (14% vs. 84%), both p < 0.001. Patients with long-segment HD were more likely to have a delayed diagnosis (12% vs. 5%) and require multiple bowel operations (19% vs. 4%), both p < 0.001. They experienced higher rates of complications, including small bowel obstructions (10% vs. 1%), infections (45% vs. 20%), and Hirschsprung-associated enterocolitis (11% vs. 5%), all p < 0.001. After PSMA, newborns with long-segment HD were found to have a longer length of stay and higher hospitalization costs.

CONCLUSION

Newborns with long-segment HD experience significant delays in diagnosis, surgery, and complications compared to those with rectosigmoid HD. This information should be utilized to improve healthcare delivery for this patient population.

TYPE OF STUDY

Retrospective comparative study.

LEVEL OF EVIDENCE

III.

Assessment of neuromonitoring use and postoperative readmission rates in pediatric Chiari I malformation with syrinx

INTRODUCTION

While operative intervention for Chiari malformation type I (CMI) with syringomyelia is well established, there is limited data on outcomes of intraoperative neuromonitoring (IONM). This study sought to explore differences in procedural characteristics and their effects on postoperative readmission rates.

METHODS

The Nationwide Readmission Database was queried from 2010 to 2014 for patients ≤ 18 years of age with CMI and syringomyelia who underwent cranial decompression or spinal decompression. Demographics, hospital characteristics, and outcomes were analyzed.

RESULTS

Over the 5-year period, 2789 patients were identified that underwent operative treatment for CMI with syringomyelia. Mean age was 10 ± 4 years with 55% female. During their index hospitalization 14% of the patients had IONM. Patients receiving IONM had no significant difference in Charleston Comorbidity Index ≥ 1 (16% vs. 15% without, p = 0.774). IONM was more often used in those with private insurance (63% vs. 58% without, p = 0.0004) and less likely in those with Medicaid (29% vs. 37% without, p = 0.004). Patients receiving IONM were more likely to have a postoperative complication (23% vs 17%, p = 0.004) and were more likely to have hospital lengths of stay > 7 days (9% vs. 5% without, p = 0.005). Readmission rates for CMI were 9% within 30 days and 15% within the year. The majority (89%) of readmissions were unplanned. 25% of readmissions were for infection and 27% of readmissions underwent a CMI reoperation. The 30-day readmission rate was higher for those with IONM (12% vs. 8% without, p = 0.010). Median cost for hospitalization was significantly higher for patients with IONM ($26,663 ($16,933-34,397)) vs. those without ($14,577 ($11,538-18,392)), p < 0.001.

CONCLUSION

The use of intraoperative neuromonitoring for operative repair of CMI is associated with higher postoperative complications and readmissions. In addition, there are disparities in its use and increased cost to the healthcare system. Further studies are needed to elucidate the factors underlying this association.

Income disparities in nationwide outcomes of malrotation with midgut volvulus

BACKGROUND

Malrotation with midgut volvulus is a surgical emergency commonly encountered in pediatric surgical practice. Outcomes are excellent with timely diagnosis and treatment, but the development of bowel ischemia is associated with many negative consequences.

METHODS

The Nationwide Readmissions Database was used to identify patients 0-18 years (excluding newborns) with malrotation and midgut volvulus from 2010 to 2014. Demographics, procedures, and outcomes were compared by income group (highest quartile vs. lowest quartile) using standard statistical tests. Results were weighted for national estimates.

RESULTS

Emergency surgery for midgut volvulus was performed in 572 patients. The majority (86%) underwent Ladd's procedure, while 14% required bowel resection and/or ostomy. Patients in the lowest income quartile were more likely to require bowel resection (18% vs. 8%, p = 0.03) or ostomy (9% vs. 2%, p = 0.015) compared to those in the highest income quartile. Low-income patients were more likely to experience prolonged hospital stay (8 [5-13] days vs. 6 [4-8] days, p<0.001) and experience complications including infections (19% vs. 5%, p = 0.002), endotracheal intubation (18% vs. 4%, p<0.001), and blood transfusions (13% vs. 3%, p = 0.003).

CONCLUSION

Income disparity represents a major factor in surgical outcomes in children with midgut volvulus. A broad spectrum of clinical outcomes following surgery for midgut volvulus exists. Patients from lower-income communities are at significantly higher risk for numerous complications, negative outcomes, and higher resource utilization. These findings support additional investigations of practices to mitigate risk for low-income patients.

LEVEL OF EVIDENCE

Level III: Retrospective comparative study.

Does surgical approach matter in the treatment of pediatric ulcerative colitis?

BACKGROUND

This study aims to compare the morbidity of open versus laparoscopic colectomy or proctocolectomy for pediatric patients with ulcerative colitis (UC) using national readmission outcomes.

MATERIALS AND METHODS

The 2010-2014 Nationwide Readmissions Database was used to identify patients < 18 years (excluding newborns) who underwent colectomy or proctocolectomy for UC. Patients with planned readmissions for staged procedures were excluded from readmission analysis. Demographics, hospital factors, and outcomes were compared by operative approach (open vs. laparoscopic) using standard statistical analysis. Results were weighted for national estimates.

RESULTS

There were 1922 patients (51% female, age 13 ± 3 years) with UC who underwent colectomy or proctocolectomy during index admission. Most cases were performed open (54%) and as elective admissions (64%). Compared to open approach, laparoscopy was associated with shorter index hospital length of stay (8 [5-17] days vs. 9 [6-18] days, p = 0.015), fewer surgical site infections (< 2% vs. 2%, p = 0.022), and less post-operative gastrointestinal dysfunction (5% vs. 8%, p = 0.008). After stratifying to control for elective and unplanned index admissions, laparoscopic approach was associated with fewer small bowel obstructions during index hospitalizations in both elective (9% vs. 15%, p = 0.003) and unplanned (5% vs. 16%, p<0.001) settings. Readmission for surgical site infection was also less common following laparoscopic approach in both elective (0% vs. 7%, p = 0.008) and unplanned (0% vs. < 7%, p = 0.017) settings.

CONCLUSIONS

In pediatric patients with ulcerative colitis, laparoscopic colectomy or proctocolectomy is associated with shorter hospital length of stay, less post-operative complications, and improved readmission outcomes.

Outcomes for Ladd's procedure: Does approach matter?

BACKGROUND

Laparoscopic Ladd's procedure has been proven safe and effective for the treatment of malrotation. However, the nationwide utilization and outcomes of elective Ladd's procedure are largely unknown.

METHODS

The Nationwide Readmissions Database from 2010 to 2014 was used to identify patients 0-18 years (excluding newborns) with malrotation who underwent elective Ladd's procedure. Demographics, hospital factors, and outcomes were compared by approach (laparoscopic vs. open) using standard statistical tests and propensity score (PS) matched analysis. Results were weighted for national estimates.

RESULTS

1343 patients (44% male) underwent elective Ladd's procedure via laparoscopic (22%) or open (78%) approach. Laparoscopic approach was more common in large hospitals (26% vs. 16%), patients >13 years (30% vs. 20%), and those with higher income (29% vs. 16%), all p < 0.001. Following PS matching, compared to the laparoscopic approach, open Ladd's was associated with index hospital length of stay > 7 days (20% vs. 8%), more post-operative gastrointestinal dysfunction (12% vs. < 1%), and more nausea, vomiting, and/or diarrhea (16% vs. 6%), all p < 0.001. The overall readmission rates within 30 days and the year of index operation were 8% and 15%, respectively. In the matched cohort, those undergoing laparoscopic Ladd's were less likely to be readmitted than those with the open approach (7% vs. 16%, p < 0.001) and experienced less gastrointestinal issues on readmission (5% vs. 15%, p = 0.002). There were similar rates of post-operative small bowel obstruction (< 3% vs. < 3%, p = 0.840) and volvulus (0% vs. < 1%, p = 0.136). Redo Ladd's procedure was performed in less than 4% of readmissions and all occurred within 5 days of initial hospital discharge.

CONCLUSION

The majority of Ladd's procedures in the U.S. are being performed open, despite comparable outcomes following a laparoscopic approach. Readmission rates are similar with either approach, and the rate of redo Ladd's procedure is lower than previously reported.

LEVEL OF EVIDENCE

Level III.

Nationwide Outcomes and Readmission After Pediatric Laparoscopic and Open Fundoplication

Purpose: Fundoplications are a common operation in the pediatric population. This study aims to explore outcomes comparing laparoscopic versus open operative techniques. Methods: From 2010 to 2014 the Nationwide Readmissions Database was used to identify patients aged 0-18 years who underwent a fundoplication. Propensity score matched analysis was performed based on 87 covariates. Demographics, hospital factors, readmissions, and complications were compared by surgical technique (laparoscopic versus open). Results: There were 4411 patients (47% female) who underwent fundoplication via laparoscopic (69%) versus open (31%) technique. Gastrostomy tubes were placed in 75% of patients also undergoing fundoplication. Newborn made up 64% of the cohort, with 47% of newborns having cardiac anomalies and 96% being premature. Open fundoplications were more likely to be performed in newborns (72% versus 61%) and those in the lowest income quartile compared to laparoscopic (41% versus 31% P < .001), both P < .001. The readmission rate was 20% within 30 days and 38% within the year, with 15% admitted to a different hospital. Only 14% of readmissions were elective. Open fundoplication was associated with more unplanned readmissions (94% versus 84%), conversion to gastrojejunostomy tube (11% versus 5%) along with major (5% versus 3%) and minor (8% versus 2%) complications compared to the laparoscopic approach, all P < 0.001. Conclusion: The majority of fundoplications are being performed in newborns and are being done laparoscopically, which are associated with lower complication and postoperative readmission rates compared to open fundoplications.

Ovarian Preservation and Recurrent Torsion in Children: Both Less Common Than We Thought

PURPOSE

Surgical management of pediatric ovarian torsion includes total oophorectomy (TO) or ovarian preservation surgery (OPS). This study sought to identify factors contributing to surgical management and readmission outcomes for ovarian torsion.

METHODS

The Nationwide Readmission Database from 2010-2014 was used to identify patients < 18 years admitted with ovarian torsion. Patient factors, hospital characteristics, and readmission outcomes were compared by TO and OPS. Standard statistical analysis was performed and results were weighted for national estimates.

RESULTS

There were 6028 patients (age 13 ± 4 years) identified with ovarian torsion who underwent either TO (50%) or OPS (50%). Patients had secondary pathology of ovarian cyst (41%), benign mass (19%), and malignant mass (0.4%). OPS was more common in teaching hospitals (84% vs. 74% TO, P<0.001), patients < 13 years of age (41% vs. 37% TO, P = 0.001), and those from high-income households (51% vs. 41% TO, P<0.001). The overall readmission rate was 4%, with no difference between surgical approach (4.3% OPS vs. 4.4% TO, P = 0.882). Of those readmitted (n = 265), readmission diagnoses were cyst (10%), malignant mass (9%), benign mass (7%), and torsion (5%). The overall rate of recurrent torsion was 0.2%, with no difference between OPS and TO (< 0.3% vs. < 0.2%, P = 0.282).

CONCLUSION

Half of pediatric patients are undergoing TO for ovarian torsion in the U.S. and disparities exist with the utilization of OPS. There is no difference in rate of readmission or recurrent torsion between surgical approaches, and the overall rate of retorsion is lower than previously reported.

Pediatric Gastrostomy Tube Placement: Less Complications Associated with Laparoscopic Approach

Background: There are few nationwide studies comparing outcomes of open, laparoscopic (LAP), and percutaneous endoscopic (PEG) gastrostomy tube (GT) placement in the pediatric population. Materials and Methods: The Nationwide Readmissions Database from 2010 to 2014 was used to identify patients ≤18 years (excluding newborns) who underwent GT placement. Demographics, hospital characteristics, and outcomes were compared by the GT approach. Results: There were 3278 patients (41% female, age 3 ± 5 years) identified who underwent GT placement (40% open versus 32% PEG versus 28% LAP). Following an open approach, there were higher rates of GT-related complications (10% versus 4% LAP versus 3% PEG) and postoperative gastrointestinal issues (24% versus 12% LAP versus 9% PEG) on index hospitalization, both P < .001. Readmission within 30 days and 1 year were 18% and 43%, respectively. Overall readmission rates were not affected by the GT approach (44% open versus 44% LAP versus 43% PEG, P = .773). However, readmission for GT-related complications was the lowest following the LAP approach (<0.3% versus 2% open versus 2% PEG, P < .001). When those who also underwent fundoplication were excluded, conversion to gastrojejunostomy or jejunostomy (GJ/J) on readmission was higher following open and PEG approaches (4% open versus 2% PEG versus 0% LAP, P = .039). Conclusions: Compared with PEG gastrostomy and open gastrostomy, LAP GT placement appears to have lower index complications and reoperation rates, and at least comparable readmission outcomes. Despite these advantages, LAP GT placement remains underutilized.

The hidden burden of unplanned readmission after emergency general surgery

BACKGROUND

There are no national studies of nonelective readmissions after emergency general surgery (EGS) diagnoses that track nonindex hospital readmission. We sought to determine the rate of overall and nonindex hospital readmissions at 30 and 90 days after discharge for EGS diagnoses, hypothesizing a significant portion would be to nonindex hospitals.

METHODS

The 2013 to 2014 Nationwide Readmissions Database was queried for all patients 16 years or older admitted with an EGS primary diagnosis and survived index hospitalization. Multivariable logistic regression identified risk factors for nonelective 30- and 90-day readmission to index and nonindex hospitals.

RESULTS

Of 4,171,983 patients, 13% experienced unplanned readmission at 30 days. Of these, 21% were admitted to a nonindex hospital. By 90 days, 22% experienced an unplanned readmission, of which 23% were to a nonindex hospital. The most common reason for readmission was infection. Publicly insured or uninsured patients accounted for 67% of admissions and 77% of readmissions. Readmission predictors at 30 days included leaving against medical advice (odds ratio [OR], 2.51 [2.47-2.56]), increased length of stay (4-7 days: OR, 1.42 [1.41-1.43]; >7 days: OR, 2.04 [2.02-2.06]), Charlson Comorbidity Index ≥2 (OR, 1.72 [1.71-1.73]), public insurance (Medicare: OR, 1.45 [1.44-1.46]; Medicaid: OR, 1.38 [1.37-1.40]), EGS patients who fell into the "Other" surgical category (OR, 1.42 [1.38-1.48]), and nonroutine discharge. Risk factors for readmission remained consistent at 90 days.

CONCLUSION

Given that nonindex hospital EGS readmission accounts for nearly a quarter of readmissions and often related to important benchmarks such as infection, current EGS quality metrics are inaccurate. This has implications for policy, benchmarking, and readmission reduction programs.

LEVEL OF EVIDENCE

Epidemiological study, level III.

Advanced Statistics: Multiple Logistic Regression, Cox Proportional Hazards, and Propensity Scores

Background: Randomized controlled trials (RCTs) are generally regarded as the gold standard for demonstrating causality because they effectively mitigate bias from both known and unknown confounders. However, conducting an RCT is not always feasible because of logistical and ethical considerations. This is especially true when evaluating surgical interventions, and non-randomized study designs must be utilized instead. Methods: Statistical methods that adjust for baseline differences in non-randomized studies were reviewed. Results: The three methods used most commonly to adjust for confounding factors are multiple logistic regression, Cox proportional hazard, and propensity scoring. Multiple logistic regression (MLR) is implemented to analyze the influence of categorical and/or continuous variables on a single dichotomous outcome. The model controls for multiple covariates while also quantifying the magnitude of each covariate's influence on the outcome. Selecting which variables to include in a model should be the most important consideration, and authors must report how and why variables were chosen. Cox proportional hazards modeling is conceptually similar to logistic regression and is used when analyzing survival data. When applied to survival curves, Cox proportional hazards can adjust for baseline group differences and provide a hazard ratio to quantify the effect that any single factor contributes to the survival curve. Propensity scores (PS) range from zero to one and are defined as the probability of receiving an intervention based on observed baseline characteristics. Propensity score matching (PSM) is especially useful when the outcome of interest is a rare event. Treated and untreated subjects with similar propensity scores are paired, forming balanced samples for further analysis. Conclusions: The method by which to address confounding should be selected according to the data format and sample size. Reporting of methods should provide justification for selected covariates, confirmation that data did not violate model assumptions, and measures of model performance.

Uncaptured rates of postpartum venous thromboembolism: a US national analysis

OBJECTIVE

To quantify the proportion of postpartum venous thromboembolism (VTE) readmissions, including those that occur at different hospitals from index admission, and describe risk factors for this outcome.

DESIGN

Retrospective observational study.

SETTING

US hospitals included in the Nationwide Readmissions Database.

SAMPLE

A total of 3 719 238 patients >14 years of age with a delivery-associated hospitalisation in 2014.

METHODS

Univariate analysis was performed to identify patient and hospital factors associated with readmissions. Significant factors were included in multivariate logistic regression to identify independent risk factors. Results were weighted for national estimates.

MAIN OUTCOME MEASURES

Readmission with VTE to both index and different hospitals at 30, 60 and 90 days.

RESULTS

The VTE cumulative readmission rate was 0.053% (n = 1477), 0.063% (n = 1765) and 0.069% (n = 1938) at 30, 60 and 90 days, respectively. Patients were readmitted to different hospitals 31% of the time within 90 days. Risk factors for different hospital VTE readmission were unique and included younger age and initial admission to a small/medium-sized hospital. Initial admission to a for-profit hospital increased the likelihood of readmission to a different hospital.

CONCLUSIONS

Nearly one in three postpartum VTEs are missed by the current quality metrics, with significant implications for outcomes and quality. For-profit hospitals have a significant portion of their VTE readmissions hidden, falsely lowering their readmission rates relative to public hospitals.

TWEETABLE ABSTRACT

US analysis shows 1 in 3 readmissions for postpartum venous thromboembolism currently missed.

Readmission for venous thromboembolism after emergency general surgery is underreported and influenced by insurance status

BACKGROUND

Prior studies of venous thromboembolism (VTE) after emergency general surgery (EGS) are not nationally representative nor do they fully capture readmissions to different hospitals. We hypothesized that different-hospital readmission accounted for a significant number of readmissions with VTE after EGS and that predictive factors would be different for same- and different-hospital readmissions.

METHODS

The 2014 Nationwide Readmissions Database was queried for nonelective EGS hospitalizations. The outcomes were readmission to the index or different hospitals within 180 days with VTE. Multivariate logistic regressions identified risk factors for readmission to index and different hospitals with VTE, reported as odds ratios with their 95% confidence intervals. Patients were excluded if during the index admission they expired, developed a VTE, had a vena cava filter placed, or did not have at least 180 days of follow-up.

RESULTS

Of 1,584,605 patients meeting inclusion criteria, 1.3% (n = 20,963) of patients were readmitted within 180 days with a VTE. Of these, 28% (n = 5,866) were readmitted to a different hospital. Predictors overall for readmission with VTE were malignancy, prolonged hospitalization, age, and being publicly insured. However, predictors for readmission to a different hospital are based on hospital characteristics, including for-profit status, or procedure type.

CONCLUSIONS

Nearly one in three readmissions with VTE after EGS occurs at a different hospital and may be missed by current quality metrics that only capture same-hospital readmission. Such metrics may underestimate for-profit hospital postoperative VTE rates relative to public and nonprofit hospitals, potentially affecting benchmarking and reimbursement. Postdischarge VTE rate is associated with insurance status. These findings have implications for policy and prevention programming design.

LEVEL OF EVIDENCE

Epidemiological study, level III.

Socioeconomic Characteristics of Patients Undergoing Ambulatory Parathyroidectomy and a Comparison of Institutional Charges

BACKGROUND

Parathyroidectomy is frequently performed as ambulatory surgery. This study seeks to characterize the socioeconomic factors that may impact the patient selection for outpatient parathyroidectomy.

METHODS

The 2016 Florida State Inpatient Database (SID) and the 2016 Florida State Ambulatory Surgery Database (SASD) were queried for all patients undergoing parathyroidectomy using the International Classification of Diseases 10 (ICD-10) procedure codes. Univariable comparison and multivariate logistic regression were performed for outpatient versus inpatient parathyroidectomy using all relevant patient and hospital characteristics from the database.

RESULTS

Seven hundred and sixteen patients underwent parathyroidectomy in Florida in 2016; 322 parathyroidectomies were performed in the ambulatory setting (45.0%). After multivariate logistic regression, patients over age 65 and parathyroidectomies performed at high-volume centers were more likely to be performed at an outpatient center. Those patients who were black, Hispanic, had a Charlson Comorbidity Index ≥3, Medicare, Medicaid, and Self-pay were associated with a decreased likelihood of having an outpatient procedure.

DISCUSSION

Access to ambulatory parathyroidectomy is more common in patients with private insurance, white ethnicity, and fewer comorbidities.

Identifying Abuse and Neglect in Hospitalized Children With Burn Injuries

BACKGROUND

The purpose of this study was to identify the pattern of injuries that relates to abuse and neglect in children with burn injuries.

METHODS

The Nationwide Readmissions Database for 2010-2014 was queried for all patients aged less than 18 y admitted with burn injuries. The primary outcome was child maltreatment identified at the index admission. The secondary outcome was readmission for maltreatment. A subgroup analysis was performed on patients without a diagnosis of maltreatment during the index admission. Multivariable logistic regression was performed for each outcome.

RESULTS

There were 57,939 admissions identified and 1960 (3.4%) involved maltreatment at the index admission. Maltreatment was associated with total body surface area burned >20% (odds ratio (OR) 2.79, P < 0.001) and burn of the lower limbs (OR 1.37, P < 0.001). Readmission for maltreatment was found in 120 (0.2%), and the strongest risk factor was maltreatment identified at the index admission (OR 5.11, P < 0.001). After excluding the patients with maltreatment identified at the index admission, 96 (0.17%) children were found to have a readmission for maltreatment that may have been present on the index admission and subsequently missed. The strongest risk factor was burn of the eye or ocular adnexa (OR 3.79, P = 0.001).

CONCLUSIONS

This study demonstrates that a portion of admissions for burn injuries in children could involve maltreatment that was undiagnosed. Identifying these at-risk individuals is critical to prevention efforts.

Human and economic costs of pediatric firearm injury

PURPOSE

Pediatric firearm injury is a national crisis that inflicts significant trauma. No studies have captured risk factors for readmissions after firearm injury, including cost analysis.

METHODS

Nationwide Readmissions Database (2010-2014) was queried for patients <18 years admitted after acute firearm injury. Outcomes included mortality, length of stay, hospital costs, and readmission rates (30-day and 1-year). Multivariable logistic regression identified risk factors, significance set at p < 0.05.

RESULTS

There were 13,596 children admitted for firearm injury. Mortality rate was 6% (n = 797). Self-inflicted injury was the most lethal (37%, n = 218) followed by unintentional (5%, n = 186), and assault (4%, n = 340), all p < 0.01. Readmission rates at 30 days and 1-year were 6% (12% to different hospital) and 12% (19% to different hospital), respectively. Medicaid patients were more frequently readmitted to the index hospital, whereas self-pay and/or high income were readmitted to a different hospital. The total hospitalizations cost was over $382 million, with $5.4 million due to readmission to a different hospital.

CONCLUSION

While guns cause significant morbidity, disability, and premature mortality in children, they also have a substantial economic impact. This study quantifies the previously unreported national burden of readmission costs and discontinuity of care for this preventable public health crisis.

TYPE OF STUDY

Retrospective Comparative Study.

LEVEL OF EVIDENCE

Level III.

Hidden Readmissions after Carotid Endarterectomy and Stenting

BACKGROUND

Historically, carotid procedures incur a readmission rate of approximately 6%; however, these studies are not nationally representative and are limited to tracking only the index hospitals. We sought to evaluate a nationally representative database for readmission rates (including different hospitals) after both carotid endarterectomy (CEA) and carotid artery stenting (CAS) and determine risk factors for poor outcomes including postoperative mortality and myocardial infarction.

METHODS

This study was a retrospective analysis utilizing the 2010-2014 Nationwide Readmissions Database to query patients aged >18 years undergoing CEA or CAS. Outcomes included initial admission mortality, and 30-day readmission, including mortality and myocardial infarction (MI). Univariable analysis of 39 demographic, clinical, and hospital variables was conducted with significance set at P < 0.05. Significant variables were included in a multivariable logistic regression to identify independent risk factors for readmission. Results were weighted for national estimates.

RESULTS

There were 527,622 patients undergoing carotid procedures and 13% (n = 69,187) underwent CAS. The 30-day readmission rate was 7% (n = 35,782), and of those, 25% (n = 8,862) were readmitted to a different hospital. When controlling for other factors, CAS was a risk factor for mortality at both index admission (odds ratio [OR] 2.29 [2.11-2.49]) and 30-day readmission (OR 1.48 [1.3-1.69]) and 30-day readmissions at both index hospital (OR 1.11 [1.07-1.14]) and different hospital (OR 1.38 [1.29-1.48]). Readmission to a different hospital increased mortality risk (OR 1.45 [1.29-1.63]) but did not have an effect on MI. Postoperative infections comprised 15% of readmissions while 6% of all readmissions were for stroke.

CONCLUSIONS

Previously unreported, one in 4 readmissions after carotid procedures occur at a different hospital and this fragmentation of care could increase mortality risk after carotid procedures particularly for CAS which was also an independent risk factor for postoperative mortality and readmissions. Further validation is required to decrease unnecessary hospital after carotid procedures.

Thirty-day readmissions following parathyroidectomy: Evidence from the National Readmissions Database, 2013-2014

PURPOSE

Parathyroidectomy is one of the most common procedures performed in the United States, and are increasingly being performed safely in the outpatient setting. However, complications from surgery can be life-threatening, and thus an understanding of who may be at risk is essential. We analyzed and compared the risk factors for patients readmitted within 30 days following inpatient parathyroidectomy for primary or secondary hyperparathyroidism.

MATERIALS AND METHODS

We reviewed the National Readmissions Database from 2013 to 2014 for patients who received inpatient parathyroidectomy for primary or secondary hyperparathyroidism. The primary outcome was non-elective readmission within 30 days. Multivariate logistic regression was used to analyze risk factor odds ratios for readmission.

RESULTS

7171 patients underwent inpatient parathyroidectomies in 2013 and 2014. 59.89% of parathyroidectomies were performed for primary hyperparathyroidism, with a 5.6% readmission rate. Most common causes of readmission were septicemia (13.69%), hypocalcemia (12.86%), heart failure (10.79%) and renal failure (9.54%). Having Medicare (OR: 1.71, CI:1.14-2.59, p = .01), Medicaid (OR: 3.24, CI: 2.03-5.17, p < .001), and self-paying (OR: 2.43, CI: 1.11-5.32, p = .02), were associated with increased odds of readmission for those with primary hyperparathyroidism. 21.99% of parathyroidectomies were performed for secondary hyperparathyroidism, with a 19.4% readmission rate. Most common causes of readmission were hypocalcemia (22.88%), hungry bone syndrome (14.38%), electrolyte disorders (13.73%), and renal failure (11.11%).

CONCLUSION

Patients with secondary hyperparathyroidism are older, poorer and have more comorbidities than patients with primary hyperparathyroidism, and are more likely to be readmitted within 30 days of parathyroidectomy.