Alarming Increasing Trends in Hospitalizations and Mortality With Heyde's Syndrome: A Nationwide Inpatient Perspective (2007 to 2014)

Gastric Antral Vascular Ectasia Syndrome With Aortic Stenosis: A Twist on Heyde Syndrome?

Heyde syndrome is a triad of aortic stenosis (AS), gastrointestinal (GI) bleeding from angiodysplasia, and acquired von Willebrand disease (vWD). It is hypothesized that stenotic aortic valves cleave von Willebrand factor (vWF) multimers, predisposing patients to bleeding from GI angiodysplasias. This hypothesis is supported by the observation that aortic valve replacement often leads to the resolution of GI bleeding. Heyde syndrome is typically described in the context of AS and small bowel angiodysplasias (Dieulafoy's lesion, intestinal vascular malformation, and arteriovenous malformations). However, data on AS and gastric antral vascular ectasia (GAVE) association are scarce. GAVE is a vascular anomaly characterized by ectatic capillaries, arterioles, and venules, which can lead to upper GI bleeding. The paucity of data on GAVE-AS association may lead to underdiagnosis and/or under-reporting. Herein, we describe two cases of GAVE-AS that were diagnosed and treated at our institution. This case series focuses on patient presentations and clinical outcomes and aims to raise awareness about this rare association.

Evaluating the Relationship Between Gastrointestinal Bleeding and Valvular Heart Disease: A Systematic Review of Clinical Studies

Background: Gastrointestinal angiodysplasia is a significant vascular anomaly characterized by dilated, tortuous blood vessels in the gastrointestinal tract. The current literature extensively documents the association between angiodysplasia and aortic stenosis, known as Heyde syndrome, characterized by the triad of aortic stenosis, GIB, and acquired von Willebrand syndrome. However, other valvular diseases, including mitral and tricuspid regurgitation, have also been implicated. This comprehensive systematic review aims to investigate the spectrum of valvular abnormalities, exploring the intricate mechanisms by which they contribute to gastrointestinal bleeding. Furthermore, it will evaluate the available surgical and nonsurgical treatment modalities, assessing their efficacy in mitigating the incidence of such bleeding. Methods: A comprehensive search of the Pubmed/MEDLINE database was conducted to identify relevant studies to retrieve relevant articles from August 2014 to August 2024. A combination of Medical Subject Heading (MeSH) terms and text words related to cardiac valvular diseases and GIB were used. MeSH terms included “gastrointestinal bleeding”, “heart valve diseases”, “hematochezia”, “heart valve prosthesis”, “bioprosthesis”, “native valve diseases”, and “mechanical valve”. Results: Forty-five papers met the inclusion criteria. Twenty-seven studies covered GIB in aortic valve disease, ten on mitral valve disease, two on tricuspid valve disease, and six on multiple valves. Conclusions: This systematic review demonstrates the association between angiodysplasia and aortic stenosis and highlights mitral regurgitation and tricuspid regurgitation as potential etiologies. Definitive management with valvuloplasty or valve replacement is vital to preventing the onset or recurrence of GIB in patients with valvular disease.

Preventive Antibiotic Use and Complications After Endoscopic Retrograde Cholangiopancreatography in Patients Hospitalized for Primary Sclerosing Cholangitis

BACKGROUND

The American Society for Gastrointestinal Endoscopy recommends prophylactic antibiotics before endoscopic retrograde cholangiopancreatography (ERCP) in primary sclerosing cholangitis (PSC). We assessed the impact of this approach on the incidence of post-ERCP outcomes using nationwide data.

METHODS

Using 2015-2021 Nationwide Inpatient Sample data and relevant ICD-10 codes, we analyzed adult hospitalizations for PSC who underwent ERCP, with and without antibiotic prophylaxis. Hierarchical multivariate logistic regression analysis was used to assess the association between prophylactic antibiotic use and post-ERCP complications including sepsis, acute cholangitis, and acute pancreatitis.

RESULTS

We analyzed 32,972 hospitalizations for PSC involving ERCP, with 12,891 admissions (39.1%) receiving antibiotics before ERCP (cases) and 20,081 (60.9%) serving as controls. Cases were older than controls (mean age: 64.2 ± 8.6 vs. 61.3 ± 6.1 years; P = 0.020). Compared with controls, hospitalizations with antibiotic prophylaxis had a higher male population (7,541 (58.5%) vs. 11,265 (56.1%); P < 0.001) and higher comorbidity burden (Charlson comorbidity index score of ≥2: 5,867 (45.5%) of cases vs. 8,996 (44.8%) of controls; P = 0.01). Incidence of post-ERCP septicemia was 19.1% (6,275) with 2,935 incidences (22.8%) among cases compared with 3,340 (16.6%) among controls. Antibiotic prophylaxis did not significantly improve the odds of septicemia (aOR: 0.85; 95% CI: 0.77 - 1.09; P = 0.179). Approximately 2,271 (6.9%) cases of acute cholangitis and 5,625 (17.1%) cases of acute post-ERCP pancreatitis were recorded. After adjustments for multiple variables, no significant difference was observed in the odds of cholangitis (aOR: 0.87; 95% CI: 0.98 - 1.45; P = 0.08). However, antibiotic prophylaxis was correlated with a statistically significant reduction in the odds ratio of acute post-ERCP pancreatitis (aOR: 0.61; 95% CI: 0.57 - 0.66; P < 0.001).

CONCLUSION

The use of antibiotic prophylaxis in hospitalizations with PSC was correlated with a significant reduction in the odds of post-ERCP pancreatitis. Antibiotic prophylaxis did not improve the odds of post-ERCP sepsis or cholangitis. Prophylactic use of antibiotics should be individualized, considering both their anti-infective benefits and potential impact on the biochemical markers of liver disease.

"Heyde's enigma" in a patient with congenital annular aortic stenosis and its therapeutic challenges

Heyde's syndrome is described as angio-dysplastic gastrointestinal (GI) bleeding in elderly patients with degenerative severe calcific aortic stenosis (AS), resulting in anaemia. It was first reported by Edward C. Heyde in 1958 and thus carried his name. Although this condition is considered to develop in 10-20% of severe AS, it is a less familiar entity in clinical practice. With the rising geriatric population in the communities, there is a proportionate increase in the incidence of AS and accompanying Heyde's syndrome. Heyde's syndrome has also been associated with hypertrophic cardiomyopathy, left ventricular assist device, ventricular septal defect, and patent ductus arteriosus. This article reports a case of Heyde's syndrome associated with congenital annular AS, successfully treated by aortic root enlargement and valve replacement.

Supplementary Information

The online version contains supplementary material available at 10.1007/s12055-023-01636-y.

Racial Disparity Among Patients Undergoing Surgical Aortic Valve Replacement and Transcatheter Aortic Valve Replacement in the United States

Transcatheter aortic valve replacement (TAVR) has emerged as a minimally invasive alternative to surgical aortic valve replacement (SAVR). However, racial disparities in the utilization of TAVR persist. This meta-analysis attempts to determine whether the prevalence of adverse outcomes (procedure-related complications) represent barriers to the use of TAVR among African Americans (AA). The TAVR cohort consisted of 89.6% Caucasian (C) and 4.7% AA, while the SAVR cohort included 86.9% C and 6.4% AA. The utilization rate (UR) of TAVR was 1.48 and .35 among C and AA, respectively, while the UR of SAVR was 1.44 and .48 among C and AA, respectively. Following TAVR, for AA the odds ratio (OR) was greater for stroke (OR = 1.22, P = .02) and transient ischemic attack (TIA) (OR = 1.57, P < .001) and lower for undergoing the insertion of a permanent pacemaker (OR = .81, P < .001). While there was a significant difference between C and AA in TAVR and SAVR utilization, outcomes between groups following TAVR are comparable; therefore, adverse outcomes do not appear to be a barrier to the use of TAVR among eligible AA.

Did angiodysplasia associated with heyde's syndrome disappear spontaneously?: a case report

BACKGROUND

Heyde's syndrome can be easily overlooked or misjudged in clinical practice because it shares common clinical manifestations with multiple diseases as well as limited accuracy of several corresponding examinations for diagnosing Heyde's triad. Moreover, aortic valve replacement is often delayed in these patients due to the contradiction between anticoagulation and hemostasis. Herein, we present a rare case of atypical Heyde's syndrome. The patient's severe intermittent gastrointestinal bleeding was not completely cured even through a local enterectomy. In the absence of direct evidence of acquired von Willebrand syndrome (AVWS) or angiodysplasia, her long-standing gastrointestinal bleeding was finally stopped after receiving transcatheter aortic valve implantation (TAVI).

CASE PRESENTATION

A 64-year-old female suffered from refractory gastrointestinal bleeding and exertional dyspnoea. A local enterectomy was performed owing to persistent hemorrhage and repeated transfusions; subsequently, histological examination revealed angiodysplasia. Heyde's syndrome was not suspected until 3 years later, at which time the patient started bleeding again and was also found to have severe aortic valve stenosis upon echocardiography. TAVI was consequently performed when the patient was in a relatively stable condition even though the predisposition to bleed, but there was no evidence of angiodysplasia and AVWS during angiography at that time. The patient's above symptoms were significantly relieved after TAVI and followed up for 2 years without any significant ischemic or bleeding events.

CONCLUSIONS

The visible characteristics of angiodysplasia or a shortage of HMWM-vWFs should not be indispensable for the clinical diagnosis of Heyde's syndrome. Enterectomy could be a bridging therapy for aortic valve replacement in patients with severe hemorrhage, and TAVI may be beneficial for moderate to high surgical-risk patients even if they have a potential risk of bleeding.

Incidence, Current Guidelines and Management of Gastrointestinal Bleeding after Transcatheter Aortic Valve Replacement: A Systematic Review

BACKGROUND

There is a significant increase in morbidity and mortality in patients complicated by major bleeding following transcatheter aortic valve replacement (TAVR). It has become more challenging to manage such complications when the patient needs to be on anticoagulation or antiplatelet agent post-procedure to prevent thrombotic/embolic complications.

METHODS

We systematically reviewed all available randomized controlled trials and observational studies to identify incidence rates of gastrointestinal bleeding post-procedure. After performing a systematic search, a total of 8731 patients from 15 studies (5 RCTs and 10 non-RCTs) were included in this review.

RESULTS

The average rate of gastrointestinal bleeding during follow-up was 3.0% in randomized controlled trials and 1.9% among observational studies.

CONCLUSION

Gastrointestinal bleeding has been noted to be higher in the RCTs as compared to observational studies. This review expands knowledge of current guidelines and possible management of patients undergoing TAVR.

Gastrointestinal bleeding during the transcatheter aortic valve replacement perioperative period: A Review

With the aging of the population, the incidence of senile degenerative valvular heart disease is expected to increase. Transcatheter aortic valve replacement (TAVR) has been used for patients at lower surgical risk with symptomatic severe aortic valve stenosis. Because of the improvements in TAVR technology and increasing experience of the operators, TAVR is regarded as a safe and feasible procedure. Bleeding events during the TAVR perioperative period, especially gastrointestinal (GI) bleeding, have been proven to be related to the long-term prognosis and mortality. Elderly patients with valvular heart disease are susceptible to GI bleeding because of their use of antithrombotic drugs, physical damage of coagulation factors, and GI angiodysplasia. Frequent GI bleeding and low levels of preoperative hemoglobin increase the risk of TAVR, especially for elderly patients. Because of these risks, which are easily overlooked, we should focus more attention on the perioperative management of TAVR. Reasonable screening tools, including blood examinations, risk evaluation scales, and endoscopy, are beneficial to the prevention of complications that can occur during the perioperative period. Additionally, medical therapy can safely help patients at high-risk for bleeding patients throughout the perioperative period. This study aimed to characterize the pathology of TAVR patients and discuss treatment strategies for GI bleeding during the perioperative period.

Aortic stenosis and Heyde’s syndrome: A comprehensive review

Heyde’s syndrome is an under reported systemic disease of gastrointestinal and cardiac manifestation in older adults. It is characterized by a triad of aortic stenosis, angiodysplasia with bleeding and acquired von Willebrand syndrome. It is characterized by proteolysis of high molecular weight multimers of von Willebrand Factor and loss of platelet mediated homeostasis. Heyde’s syndrome is a treatable condition in most cases, especially in the current era of evolution in interventional cardiology and gastroenterology. There are currently no established guidelines in the management of this condition due to paucity of high quality studies, which warrant future trials. High index of suspicion and increasing the awareness of the syndrome among the general practitioners and sub-specialists will improve the diagnostic potential of Heyde’s syndrome. Future studies may change the management aspect of Heyde's syndrome and pave a path for drawing specific guidelines and algorithms. The aim of our review article is to summarize the basic pathophysiology, diagnostics and management of Heyde’s syndrome with a special attention to Transcatheter aortic valve replacement.

Heyde syndrome: prevalence and outcomes in patients undergoing transcatheter aortic valve implantation

Background

Heyde syndrome (HS) is known as the association of severe aortic stenosis (AS) and recurrent gastrointestinal bleeding (GIB) from angiodysplasia. Data on the prevalence of HS and results after TAVI remain scarce.

Methods

2548 consecutive patients who underwent TAVI for the treatment of AS from 2008 to 2017 were evaluated for a history of GIB and the presence of HS. The diagnosis of HS was defined as a clinical triad of severe AS, a history of recurrent GIB, and an endoscopic diagnosis of angiodysplasia. These patients (Heyde) were followed to investigate clinical outcomes, bleeding complications and the recurrence of GIB and were compared to patients with GIB unrelated to HS (Non-Heyde).

Results

A history of GIB prior to TAVI was detected in 190 patients (7.5%). Among them, 47 patients were diagnosed with HS (1.8%). Heyde patients required blood transfusions more frequently compared to Non-Heyde patients during index hospitalization (50.0% vs. 31.9%, p = 0.03). Recurrent GIB was detected in 39.8% of Heyde compared to 21.2% of Non-Heyde patients one year after TAVI (p = 0.03). In patients diagnosed with HS and recurrent GIB after TAVI, the rate of residual ≥ mild paravalvular leakage (PVL) was higher compared to those without recurrent bleeding (73.3% vs. 38.1%, p = 0.05).

Conclusion

A relevant number of patients undergoing TAVI were diagnosed with HS. Recurrent GIB was detected in a significant number of Heyde patients during follow-up. A possible association with residual PVL requires further investigation to improve treatment options and outcomes in patients with HS.

Graphic abstract

Supplementary Information

The online version contains supplementary material available at 10.1007/s00392-021-01905-z.

Heyde's Syndrome - An Enigma

Heyde's syndrome (HS) is described as the association between recurrent bleeding from angiodysplasia of the gastrointestinal tract and aortic stenosis. Aortic valve replacement has been reported to stop the bleeding. In unfit patients, the options available are interventional or conservative management. We hereby report an elderly obese patient with severe comorbidity with complicated HS involving a narrow aortic root. She underwent left ventricular outlet myomectomy and aortic root replacement to promote better forward flow and prevent restenosis and recurrence of symptoms. She was discharged home symptom-free despite being on coumadin anticoagulants.

Heyde Syndrome-Pathophysiology and Perioperative Implications

Gastrointestinal (GI) bleeding in patients with calcific aortic valve stenosis (AVS), termed Heyde syndrome, was first described by Edward C. Heyde. The strong association between valvular replacement and the eradication of clinically significant GI bleeding confirmed an underlying pathophysiologic relationship. The rheologic stress created by AVS increases proteolysis of von Willebrand factor (VWF), resulting in loss of predominantly high-molecular-weight VWF (Hmw VWF). Angiodysplastic vessels present in patients with AVS, coupled with the lack of functioning Hmw VWF, increase the risk for GI bleeds. Aortic valve replacement, both surgical and transcatheter-based, is often a definitive treatment for GI bleeding, leading to recovery of Hmw VWF multimers. Perioperative management of patients involves monitoring their coagulation profiles with relevant laboratory tests and instituting appropriate management. Management can be directed in the following two ways: by improving internal release of VWF or by administration of external therapeutics containing VWF. It is important for perioperative physicians to obtain an understanding of the pathophysiology of this disease process and closely monitor the bleeding pattern so that targeted therapies can be initiated.

Of aortic valve and bleeding: Heyde's syndrome

An 80-year-old woman with severe aortic stenosis presented with relapsing enterorrhagia and severe anemia. A video capsule pan-endoscopy showed multiple sites of complex mucosal angiodysplasia in the jejunum. Direct hemostatic treatment of accessible angiodysplasia was done with argon plasma coagulation, and the patient was urgently referred for trans-catheter aortic valve replacement (TAVR). At follow-up 1 month and 3 months later, she was doing well with no further episodes of bleeding. Heyde's syndrome is referred to as the association of aortic stenosis, gastrointestinal angiodysplasia, bleeding, and anemia. It is an acquired type2A von Willebrand syndrome caused by the proteolysis and loss of the largest polymers of vWF due to the high shear forces generated through the stenotic aortic valve. The qualitative and quantitative vWF defects play a central role in the angiogenesis and development of gastrointestinal angiodysplasia The vWF abnormalities are closely associated with the hemodynamic severity of the aortic valve stenosis. Valve replacement is the pivotal strategy to achieve the long-term resolution of bleeding recurrences. TAVR is a valuable option particularly in high-risk patients for whom surgical valve replacement is not feasible.

Nationwide Trends in Prevalent Cardiovascular Risk Factors and Diseases in Young Adults: Differences by Sex and Race and In-Hospital Outcomes

OBJECTIVES

Prevalence and trends in all cardiovascular disease (CVD) risk factors among young adults (18-39 years) have not been evaluated on a large scale stratified by sex and race. The aim of this study was to establish the prevalence and temporal trend of CVD risk factors in US inpatients younger than 40 years of age from 2007 through 2014 with racial and sex-based distinctions. In addition, the impact of these risk factors on inpatient outcomes and healthcare resource utilization was explored.

METHODS

A cross-sectional nationwide analysis of all hospitalizations, comorbidities, and complications among young adults from 2007 to 2014 was performed. The primary outcomes were frequency, trends, and race- and sex-based differences in coexisting CVD risk factors. Coprimary outcomes were trends in all-cause mortality, acute myocardial infarction, arrhythmia, stroke, and venous thromboembolism in young adults with CVD risk factors. Secondary outcomes were demographics and resource utilization in young adults with versus without CVD risk factors.

RESULTS

Of 63 million hospitalizations (mean 30.5 [standard deviation 5.9] years), 27% had at least one coexisting CVD risk factor. From 2007 to 2014, admission frequency with CVD risk factors increased from 42.8% to 55.1% in males and from 16.2% to 24.6% in females. Admissions with CVD risk were higher in male (41.4% vs 15.9%) and white (58.4% vs 53.8%) or African American (22.6% vs 15.9%) patients compared with those without CVD risk. Young adults in the Midwest (23.9% vs 21.1%) and South (40.8% vs 37.9%) documented comparatively higher hospitalizations rates with CVD risk. Young adults with CVD risk had higher all-cause in-hospital mortality (0.4% vs. 0.3%) with a higher average length of stay (4.3 vs 3.2 days) and charges per admission ($30,074 vs $20,124).

CONCLUSIONS

Despite modern advances in screening, management, and interventional measures for CVD, rising trends in CVD risk factors across all sex and race/ethnic groups call for attention by preventive cardiologists.

Anticoagulation after Transcatheter Aortic Valve Implantation: Current Status

Transcatheter aortic valve implantation (TAVI) is the standard of care for symptomatic severe aortic stenosis. Antithrombotic therapy is required after TAVI to prevent thrombotic complications but it increases the risk of bleeding events. Current clinical guidelines are mostly driven by expert opinion and therefore yield low-grade recommendations. The optimal antithrombotic regimen following TAVI has yet to be determined and several randomised controlled trials assessing this issue are ongoing. The purpose of this article is to critically explore the impact of antithrombotic drugs, especially anticoagulants, on long-term clinical outcomes following successful TAVI.

Secondary angiodysplasia-associated gastrointestinal bleeding in end-stage renal disease: Results from the nationwide inpatient sample

BACKGROUND

Chronic kidney disease is associated with angiodysplasia of gastrointestinal tract leading to increased risk of gastrointestinal bleeding.

AIM

To determine the nationwide prevalence, trends, predictors and resource utilization of angiodysplasia-associated gastrointestinal bleeding in end-stage renal disease hospitalizations.

METHODS

The Nationwide Inpatient Sample database from 2009 to 2014, was utilized to conduct a retrospective study on patients with angiodysplasia associated- gastrointestinal bleeding and end-stage renal disease. Hospitalizations with end-stage renal disease were included in the Nationwide Inpatient Sample database and a subset of hospitalizations with end-stage renal disease and angiodysplasia-associated gastrointestinal bleeding were identified with International Classification of Diseases, 9th revision, Clinical Modification codes for both end-stage renal disease (585.6) and Angiodysplasia (569.85, 537.83).

RESULTS

The prevalence of angiodysplasia-associated gastrointestinal bleeding was 0.45% (n = 24709) among all end-stage renal disease patients (n = 5505252) that were hospitalized. Multivariate analysis indicated that the following were significant factors associated with higher odds of angiodysplasia associated-gastrointestinal bleeding in end-stage renal disease patients: an increasing trend from 2009-2014 (P < 0.01), increasing age (P < 0.0001); African American race (P = 0.0206); increasing Charlson-Deyo Comorbidity Index (P < 0.01); hypertension (P < 0.0001); and tobacco use (P < 0.0001). Diabetes mellitus (P < 0.0001) was associated with lower odds of angiodysplasia associated-gastrointestinal bleeding in end-stage renal disease patients. In comparison with urban teaching hospitals, rural and urban nonteaching hospitals were associated with decreased odds of angiodysplasia associated-gastrointestinal hemorrhage.

CONCLUSION

Angiodysplasia-associated gastrointestinal bleeding in end-stage renal disease patients showed an increasing trend from 2009-2014. Advanced age, African American race, overall high comorbidities, hypertension and smoking were significant factors for angiodysplasia-associated gastrointestinal bleeding in end-stage renal disease hospitalized patients.

Antithrombotic pharmacotherapy after transcatheter aortic valve implantation: an update

Introduction: Transcatheter aortic valve implantation (TAVI) is the treatment of choice for a large proportion of patients with severe aortic stenosis. Despite numerous technological and clinical advances, TAVI remains associated with thrombotic complications requiring antithrombotic pharmacotherapy, which exposes to the risk of bleeding, especially in elderly individuals. The optimal antithrombotic regimen following TAVI is uncertain and several investigations are ongoing. Areas covered: Clinical guidelines are mostly driven by observational trials and experts' opinions, thus resulting into low-grade level of evidence. The aim of the current review is to critically explore the epidemiology, pathophysiology and prognostic value of thrombotic and bleeding events after TAVI, and to review the current literature on antithrombotic strategies following the procedure. Expert opinion: Thrombotic and bleeding events remain major complications occurring in the frail population that is currently offered TAVI. Waiting for upcoming evidence from ongoing randomized clinical trials, tailoring antithrombotic therapies based on patients' characteristics, values and circumstances is a preferable approach.

Epidemiology of acute coronary syndrome co-existent with allergic/hypersensitivity/anaphylactic reactions (Kounis syndrome) in the United States: A nationwide inpatient analysis

BACKGROUND

The nationwide epidemiological data on Kounis Syndrome (KS), still remains indistinct in the United States (US) after it was first reported in 1991.

METHODS

We assessed the prevalence of KS among patients primarily hospitalized for allergic/hypersensitivity/anaphylactic reactions. We then compared baseline demographics, comorbidities, and outcomes of KS with patients with only allergic/hypersensitivity/anaphylactic reactions using the National Inpatient Sample, 2007-2014.

RESULTS

The cohort comprised of 235,420 patients primarily hospitalized with allergy/hypersensitivity/anaphylactic reactions. Of these, 2616 [1.1%; 0.2% unstable angina, 0.2% ST-elevation myocardial infarction & 0.7% non-ST-elevation myocardial infarction] patients experienced ACS and were identified as having KS. Patients with KS were older (mean 65.9 ± 14.1 vs. 57.2 ± 17.8 yrs), more often White (71.1% vs. 58.6%), male (46.4% vs. 39.9%) and Medicare enrollees (58.9% vs. 41.5%) admitted non-electively (96.8% vs. 95.3%) as compared to non-KS group (p < 0.001). The hospitalizations with KS demonstrated higher all-cause in-hospital mortality (7.0% vs. 0.4%, p < 0.001), prolonged hospitalization stay (mean 5.8 ± 6.0 vs. 3.0 ± 3.9 days, p < 0.001), higher hospitalization charges ($52,656 vs. $20,487, p < 0.001) and more frequent transfers to other facilities. The rates of stroke (1.0% vs. 0.2%), arrhythmias (30.4% vs. 12.4%), venous thromboembolism (1.6% vs. 1.0%), and diagnostic and therapeutic coronary interventions were also found to be significantly higher in patients with KS (p < 0.05). Patients with KS had increased odds of in-hospital mortality [unadjusted OR: 18.52; 95% CI: 15.74-21.80, p < 0.001 & adjusted OR: 9.74, 95% CI: 8.08-11.76, p < 0.001] compared to non-KS group.

CONCLUSIONS

Overall US prevalence of KS among patients hospitalized for allergic/hypersensitivity/anaphylactic reactions is 1.1% with a subsequent all-cause inpatient mortality rate of 7.0%.

A Nationwide Assessment of the "July Effect" and Predictors of Post-Endoscopic Retrograde Cholangiopancreatography Sepsis at Urban Teaching Hospitals in the United States

Background/Aims

To analyze the incidence of post-endoscopic retrograde cholangiopancreatography (ERCP) sepsis in the early (July to September) and later (October to June) academic months to assess the “July effect”.

Methods

The National Inpatient Sample (2010–2014) was used to identify ERCP-related adult hospitalizations at urban teaching hospitals by applying relevant procedure codes from the International Classification of Diseases, 9th revision, Clinical Modification. Post-ERCP outcomes were compared between the early and later academic months. A multivariate analysis was performed to evaluate the odds of post-ERCP sepsis and its predictors.

Results

Of 481,193 ERCP procedures carried out at urban teaching hospitals, 124,934 were performed during the early academic months. The demographics were comparable for ERCP procedures performed during the early and later academic months. A higher incidence (9.4% vs. 8.8%, p<0.001) and odds (odds ratio [OR], 1.07) of post-ERCP sepsis were observed in ERCP performed during the early academic months. The in-hospital mortality rate (7% vs. 7.5%, p=0.072), length of stay, and total hospital charges in patients with post-ERCP sepsis were also equivalent between the 2 time points. Pre-ERCP cholangitis (OR, 3.20) and post-ERCP complications such as cholangitis (OR, 6.27), perforation (OR, 3.93), and hemorrhage (OR, 1.42) were significant predictors of higher post-ERCP sepsis in procedures performed during the early academic months.

Conclusions

The July effect was present in the incidence of post-ERCP sepsis, and academic programs should take into consideration the predictors of post-ERCP sepsis to lower health-care burden.