Differences in the outcome of patients undergoing percutaneous coronary interventions at teaching versus non-teaching hospitals

Comparative analysis of patient demographics and outcomes in teaching and non-teaching hospitals in Iran

AIMS

This study investigates the differences in patient demographics and outcomes between teaching and non-teaching hospitals in Iran. By analyzing these differences, it aims to provide useful information for policymakers to optimize resource allocation, improve patient care, and balance educational and service delivery goals in teaching hospitals.

MATERIALS AND METHODS

In this cross-sectional investigation, both teaching and non-teaching general hospitals were examined. A comprehensive analysis was carried out on 13 non-teaching and 25 teaching hospitals with homogeneity, utilizing Health Information System (HIS) data comprising 10,611,647 records through census sampling in 2019. Before employing the logistic regression models to clarify the relationship between a binary dependent variable (distinguishing teaching or non-teaching hospitals) and independent variables, we utilize the Recursive Feature Elimination (RFE) technique to select the most crucial predictor variables.

FINDINGS

the optimal logistic regression model revealed that the teaching status of hospitals played a crucial role as an indirect predictor for variables including referral patients, length of stay (<24 hours), patients with partial improvement, and those who received less than 3 services. It also emerged as a direct predictor for variables such as length of stay (>30 days), patients receiving more than the mean services, death rate, and patients with complete improvement. Moreover, the teaching status had an indirect impact on variables like outpatient cases, length of stay (>30 days), and paraclinical services, while directly predicting variables such as patients with supplementary insurance and vulnerable groups insurance type, rehabilitation services, clinic wards, and length of stay (between 4-30 days).

CONCLUSION

In Iranian teaching hospitals, we observed an increase in patient numbers, extended length of stay, a rise in both the quantity and complexity of services, and more intricate patient admissions. It appears that small teaching hospitals in Iran have transitioned from being referral centers to functioning as outpatient centers with active clinics.

Impact of resident training on cardiac electrophysiological procedures

BACKGROUND

Modern management of cardiac arrhythmias often requires interventions in which young physicians must acquire a high level of expertise. However, concerns have been raised about the increase in side effects during procedures performed with resident involvement.

AIM

This study aims to identify the effects of resident training on cardiac electrophysiological procedures within a university centre.

METHODS

In a single-centre study, cardiac arrhythmia procedures were reviewed retrospectively, and resident involvement was scrutinized. Univariate and multivariable models were built for the following outcomes: fluoroscopy time; operative time; length of hospitalization after procedure; and adverse events.

RESULTS

We reviewed 991 procedures, 574 without and 417 with resident involvement (650 cardiac pacemakers or defibrillators, 120 generator replacements, 188 electrophysiological studies and 153 radiofrequency ablations). Resident involvement was associated with an increase in fluoroscopy time: +1.7±0.4minutes (P<0.01) for pacemaker implantation; and +2.5±0.9minutes (P=0.01) for electrophysiological studies. Operative time was longer for electrophysiological studies (+10.8±4.9minutes; P=0.03) and pacing implantation (+8.4±2.2minutes; P<0.01). There was no significant association between resident training and adverse events (7.67 vs. 9.83%; P=0.28).

CONCLUSIONS

Cardiac electrophysiological procedures performed with resident involvement have a good safety profile. However, resident training modestly, but significantly, prolongs fluoroscopy time and operative time.

Outcomes of Coronary Artery Bypass Grafting in Patients With Previous Mediastinal Radiation

Studies have shown that patients with radiation therapy-associated coronary artery disease tend to have worse outcomes with percutaneous revascularization. Previous irradiation has been linked with future internal mammary artery graft disease. Studies investigating the outcomes of coronary artery bypass surgery (CABG) among patients with previous radiation are limited. The Nationwide Readmission Database for the years 2016 to 2019 was queried for hospitalizations with CABG and history of mediastinal radiation. Complex samples multivariable logistic and linear regression models were used to determine the association between the history of mediastinal radiation and in-hospital mortality, 90 days all-cause unplanned readmission rates, and acute coronary syndrome readmission rates. A total of 533,702 hospitalizations (2,070 in the irradiation history group and 531,632 in the control group) were included in this analysis. Patients with radiation therapy history were less likely to have traditional coronary artery disease risk factors and more likely to have associated valvular disease. Patients with a history of irradiation had similar in-hospital mortality and 90-day readmission risk at the expense of higher hospitalizations costs (β coefficient: $2,764; p = 0.005). They had a higher likelihood of readmission with acute coronary syndrome within 90 days (adjusted odds ratio 1.67, p = 0.02). In a conclusion, a history of mediastinal irradiation is not associated with increased rates of short-term mortality or increased all-cause readmission risk after CABG. However, it may be associated with increased acute coronary syndrome readmission rates.

Quality and Cost of Care by Hospital Teaching Status: What Are the Differences?

Policy Points In two respects, quality of care tends to be higher at major teaching hospitals: process of care and long-term survival of cancer patients following initial diagnosis. There is also evidence that short-term (30-day) mortality is lower on average at such hospitals, although the quality of evidence is somewhat lower. Quality of care is mulitdimensional. Empirical evidence by teaching status on dimensions other than survival is mixed. Higher Medicare payments for care provided by major teaching hospitals are partially offset by lower payments to nonhospital providers. Nevertheless, the payment differences between major teaching and nonteaching hospitals for hospital stays, especially for complex cases, potentially increase prices other insurers pay for hospital care.

CONTEXT

The relative performance of teaching hospitals has been discussed for decades. For private and public insurers with provider networks, an issue is whether having a major teaching hospital in the network is a "must." For traditional fee-for-service Medicare, there is an issue of adequacy of payment of hospitals with various attributes, including graduate medical education (GME) provision. Much empirical evidence on relative quality and cost has been published. This paper aims to (1) evaluate empirical evidence on relative quality and cost of teaching hospitals and (2) assess what the findings indicate for public and private insurer policy.

METHODS

Complementary approaches were used to select studies for review. (1) Relevant studies highly cited in Web of Science were selected. (2) This search led to studies cited by these studies as well as studies that cited these studies. (3) Several literature reviews were helpful in locating pertinent studies. Some policy-oriented papers were found in Google under topics to which the policy applied. (4) Several papers were added based on suggestions of reviewers.

FINDINGS

Quality of care as measured in process of care studies and in longitudinal studies of long-term survival of cancer patients tends to be higher at major teaching hospitals. Evidence on survival at 30 days post admission for common conditions and procedures also tends to favor such hospitals. Findings on other dimensions of relative quality are mixed. Hospitals with a substantial commitment to graduate medical education, major teaching hospitals, are about 10% to 20% more costly than nonteaching hospitals. Private insurers pay a differential to major teaching hospitals at this range's lower end. Inclusive of subsidies, Medicare pays major teaching hospitals substantially more than 20% extra, especially for complex surgical procedures.

CONCLUSIONS

Based on the evidence on quality, there is reason for patients to be willing to pay more for inclusion of major teaching hospitals in private insurer networks at least for some services. Medicare payment for GME has long been a controversial policy issue. The actual indirect cost of GME is likely to be far less than the amount Medicare is currently paying hospitals.

Hospital Teaching Status Impacts Surgical Discharge Efficiency

OBJECTIVE

There is a paucity of data regarding the efficiency of care provided by teaching hospitals. Yet, instruction on transitions in care and an understanding of systems-based practice are key components of modern graduate medical education. We aimed to determine the relationship between hospital teaching status and the discharge efficiency from a surgical service.

SETTING

Patients who were cared for at teaching and nonteaching hospitals captured in the Healthcare Cost and Utilization Project National Inpatient Sample from 2012.

PARTICIPANTS

A total of 272,090 patients who underwent one of 44 predefined general surgery procedure types.

DESIGN

Patients were stratified based on treating hospital teaching status (TH vs. NTH). Procedure-specific early discharge (PSED) was defined for each operation type as a discharge that occurred within the lowest 25th percentile for overall length of stay. PSED was used as the discharge efficiency metric. To adjust for cofounders and hospital level clustering, multivariable mixed-effects logistic regression was used to examine the association between teaching status and PSED. Subgroup analysis was performed by operation type. Models were constructed with and without adjustment for inpatient complications.

RESULTS

There were 140,878 (51.8%) patients who received care at a TH. TH status was significantly associated with lower PSED (TH: 10.7% vs. NTH: 11.4%; p < 0.001) and longer length of stay (TH: 5.5 days vs. NTH: 4.5 days; p < 0.001). In the adjusted model of the overall cohort, patients treated at a TH were 8% less likely to receive a PSED compared to those treated at NTH (odds ratio 0.92, 95% confidence interval (0.88, 0.97); p < 0.002). Differences in the rates and odds of PSED were noted across the subgroups.

CONCLUSIONS

Teaching hospital status is associated with a reduced likelihood of PSED. The effect of TH on PSED varied by procedure subgroup. Examining the recovery pathways and discharge practices at NTH may allow for the identification of more efficient methods of care that can be applied to the broader healthcare system.

Outcomes for urologic oncology procedures: are there differences between academic and community hospitals?

OBJECTIVE

To compare the rate of hospital-based outcomes including costs, 30-day readmission, mortality, and length of stay in patients who underwent major urologic oncologic procedures in academic and community hospitals.

METHODS

We retrospectively reviewed the Vizient Database (Irving, Texas) from September 2014 to December 2017. Vizient includes ~ 97% of academic hospitals (AH) and more than 60 community hospitals (CH). Patients aged ≥ 18 with urologic malignancies who underwent surgical treatment were included. Chi square and Student t tests were used to compare categorical and continuous variables, respectively.

RESULTS

We identified a total of 37,628 cases. There were 33,290 (88%) procedures performed in AH and 4330 (12%) in CH. These included prostatectomy (18,540), radical nephrectomy (rNx) 8059, partial nephrectomy (pNx) (5287), radical cystectomy (4421), radical nephroureterectomy (rNu) (1006), and partial cystectomy (321). There were no significant differences in 30-day readmission rates or mortality for any procedure between academic and community hospitals (Table 1), p > 0.05 for all. Length of stay was significantly lower for radical cystectomy and prostatectomy in AH (p < 0.01 for both) and lower for rNx in CH (p = 0.03). The mean direct cost for index admission was significantly higher in AH for rNx, pNx, rNu, and prostatectomy. Case mix index was similar between the community and academic hospitals.

CONCLUSION

Despite academic and community hospitals having similar case complexity, direct costs were lower in community hospitals without an associated increase in readmission rates or deaths. Length of stay was shorter for cystectomy in academic centers.

Using simulation for teaching femoral arterial access: A multicentric collaboration

OBJECTIVE

To assess the impact of simulation training on complications associated with femoral arterial access obtained by first year cardiology fellows.

BACKGROUND

Prior studies demonstrate a higher incidence of arterial access related complications among patients undergoing invasive cardiac procedures.

METHODS

First year cardiology fellows at four teaching hospitals in Michigan tracked their femoral access experience and any associated complications between July 2011 and June 2013. Fellows starting their academic training in July 2012 were first trained on a specially developed simulator before starting their rotation in the catheterization laboratory. The primary outcome was access proficiency, defined as five successful femoral access attempts without any complication or need to seek help from a more experienced team member.

RESULTS

A total of 1,278 femoral access attempts were made by 21 fellows in 2011-2012 compared with 869 femoral access attempts made by 21 fellows in 2012-2013. There was a lower rate of access related complications in patients undergoing access attempts by first year fellows in year 2 compared with year 1 (2.1% versus 4.5%, P = 0.003). The number of procedures to achieve procedural proficiency was significantly higher in year 1 compared with year 2 (median 20 versus 10, P = 0.007).

CONCLUSIONS

Incorporation of simulation in the training of first year fellows was associated with an improvement in proficiency and a clinically meaningful reduction in vascular complications.