Impact of interhospital transfer on complications and outcome after intracranial hemorrhage

A Narrative Review of Interhospital Transfers for Intracerebral Hemorrhage

Of the 750,000 strokes in the United States every year, 15% patients suffer from hemorrhagic stroke. Intracerebral hemorrhage (ICH) is a subtype of hemorrhagic stroke. Despite advances in acute management, patients with hemorrhagic stroke continue to suffer from high mortality and survivors suffer from multidomain impairments in the physical, cognitive, and mental health domains which could last for months to years from their index stroke. Long-term prognosis after ICH is critically dependent on the quality and efficacy of care a patient receives during the acute phase of care. With ongoing care consolidation in stroke systems of care, the number of ICH patients who need to undergo interhospital transfers (IHTs) is increasing. However, the associations between IHT and ICH outcomes have not been well described in literature. In this review, we describe the epidemiology of IHT for ICH, the relationship between IHT and ICH patient outcomes, and proposed improvements to the IHT process to ensure better long-term patient outcomes. Our review indicates that evidence regarding the safety and benefit of IHT for ICH patients is conflicting, with some studies reporting poorer outcomes for transferred patients compared to direct admissions via emergency rooms and other studies showing no effect on outcomes. The American Heart Association guidelines for ICH provide recommendations for timely blood pressure control and anticoagulation reversal to improve patient outcomes. The American Heart Association stroke systems of care guidelines provide recommendations for transfer agreements and but do not provide details on how patients should be managed while undergoing IHT. Large, prospective, and multicenter studies comparing outcomes of IHT patients to direct admissions are necessary to provide more definitive guidance to optimize IHT protocols and aid clinical decision-making.

Fly and treat: Endovascular treatment of ruptured aneurysms at an insular tertiary center

(Objectives) Aneurysmal subarachnoid hemorrhage (aSAH) is a life-threatening condition associated with poor outcomes. Early intervention is critical, particularly in low-volume hospitals, which are advised to transfer aSAH patients to high-volume centers. This study examines a novel protocol implemented in 2016 at Região Autónoma da Madeira, a Portuguese island. It involves the mobilization of experienced neurointerventionalists from high-volume hospitals to provide aSAH treatment. (Methods) We conducted a retrospective analysis on 30 aSAH patients who underwent endovascular treatment at the island center between November 2016 and April 2022. Additionally, we included a comparison group of 74 aSAH patients, treated with the endovascular approach at Hospital de Braga (high volume center at Portugal mainland). (Results) There was no statistical difference in patients' clinical severity between both hospitals (median WFNS score of 1). Although 90 % of patients in the novel protocol group received treatment within 3 days, we observed a significant delay compared to Hospital de Braga. Rates of aneurysm occlusion and intra-procedure complications between the two groups were similar. At the 3-months follow-up, there were no statistically significant differences between groups regarding patients that achieved a modified Rankin score of 2 or less. However, the island center exhibited a significantly higher mortality rate. (Conclusions) Overall, our results suggest that making the neurointerventionalist fly to an insular center is feasible and allows most patients to be treated within the first 72 h, as recommended. We highlight some potential recommendations for implementing this model and discuss possible causes that might justify the high mortality rate.

Outcomes after inter-hospital transfer of intensive care patients with haemorrhagic stroke: a 5-year retrospective review

BACKGROUND

Inter-hospital transfer (IHT) of intensive care patients is a limited resource. We assessed the outcomes of patients with haemorrhagic stroke requiring IHT and intensive care and aimed to identify early prognostic factors of poor neurological outcome.

METHODS

We conducted a retrospective observational cohort study of patients admitted to a single tertiary intensive care unit (ICU) with haemorrhagic stroke after IHT between January 2014 and December 2018. Primary outcome was poor neurological outcome (modified Rankin Scale ≥4 at time of discharge from hospital or rehabilitation unit). Secondary outcomes were mortality rate, rate of intervention, rate of organ donation surgery (ODS) and potentially avoidable transfer (PAT). PAT was defined as transfer where the patient did not receive an intervention and had a poor neurological outcome.

RESULTS

Ninety patients were included in this study, 48 with intracerebral haemorrhage (ICH) and 42 with subarachnoid haemorrhage (SAH). Fifty-one (56.7%) patients had a poor neurological outcome, including 30 (33%) who died. Factors significantly associated with poor neurological outcome included age > 80 years, lower presenting Glasgow Coma Score (GCS) and bilaterally fixed and dilated pupils. Stepwise logistic regression demonstrated history of hypertension as significantly associated with poor neurological outcome in patients with ICH (P = 0.021). Seven (7.8%) patients had ODS. Sixty-four (71.1%) patients received intervention and 20 (22.2%) transfers were potentially avoidable.

CONCLUSIONS

Patients in this cohort are at high risk of poor neurological outcome. Prognostic factors identified in this study may help referring, retrieval and receiving clinicians to discuss futility prior to pursuing IHT.

Quality Improvement in the Management of Subarachnoid Hemorrhage: Current State and Future Directions

PURPOSE OF REVIEW

Aneurysmal subarachnoid hemorrhage carries high mortality and morbidity. Quality improvement (QI) efforts in the management of this disease process are growing as the field of neurocritical care matures. This review provides updates in QI in subarachnoid hemorrhage (SAH) and discusses gaps and future directions.

RECENT FINDINGS

Literature published on the topic over the past 3 years were evaluated. An assessment of current QI practices pertaining to the acute care of SAH was conducted. These include processes surrounding acute pain management, inter-hospital coordination of care, complications during the initial hospital stay, role of palliative care, and quality metrics collection, reporting, and monitoring. SAH QI initiatives have shown promise by decreasing ICU and hospital lengths of stay, health care costs, and hospital complications. The review reveals substantial heterogeneity, variability, and limitations in SAH QI protocols, measures, and reporting. Uniformity in QI research, implementation, and monitoring will be crucial as disease-specific QI develops in neurological care.

Using the ICH score during acute telestroke consults to triage transfer to tertiary centers

OBJECTIVE

Constrained resources at tertiary centers indicate a need for re-exploration of the practice of routinely transferring all community hospital patients with complex conditions such as hemorrhagic stroke (ICH). We addressed the clinical question of whether information available during acute care telestroke consults could identify ICH patients not requiring specialty services or neurosurgical intervention who could safely remain at the local center for care.

DESIGN

Retrospective cohort analysis abstracting clinical factors to identify ICH patients associated with need for tertiary care or neurosurgical intervention.

SETTING

The Duke Telestroke Network (DTN) in Central NC and Southern Virginia.

PATIENTS

All DTN transferred ICH patients January 1, 2017 to December 31, 2018.

INTERVENTIONS

We defined neurosurgical intervention as craniotomy, digital subtraction angiography, or external ventricular drain placement.

MEASUREMENTS AND RESULTS

We identified 116 transferred ICH patients. Sixty-two were female, the median Glasgow coma score (GCS) was 13, and the median ICU and hospital length of stay were 2 and 7 days respectively. Thirty of the patients were offered and 27 ultimately received neurosurgical intervention. Using inclusion/exclusion criteria from two ICH surgical trials would have increased the intervention group to 35 patients (30%). Components of the ICH score differentiated surgical from non-surgical patients; patients with an ICH score of <2 and GCS ≥13 received no interventions. Nearly 50% of patients could receive medical management locally.

CONCLUSIONS

Coupling the ICH score and GCS can provide triage guidance identifying patients for retention at the referring center. This retained population is distinct from patients eligible for current or novel surgical interventions. This approach provides a framework for assessment of transfers across specialty areas and furthers the value of telehealth networks.

Microsurgical treatment of ruptured aneurysms beyond 72 hours after rupture: implications for advanced management

BACKGROUND

Aneurysmal subarachnoid hemorrhage (aSAH) patients admitted to primary stroke centers are often transferred to neurosurgical and endovascular services at tertiary centers. The effect on microsurgical outcomes of the resultant delay in treatment is unknown. We evaluated microsurgical aSAH treatment > 72 h after the ictus.

METHODS

All aSAH patients treated at a single tertiary center between August 1, 2007, and July 31, 2019, were retrospectively reviewed. The additional inclusion criterion was the availability of treatment data relative to time of bleed. Patients were grouped based on bleed-to-treatment time as having acute treatment (on or before postbleed day [PBD] 3) or delayed treatment (on or after PBD 4). Propensity adjustments were used to correct for statistically significant confounding covariables.

RESULTS

Among 956 aSAH patients, 92 (10%) received delayed surgical treatment (delayed group), and 864 (90%) received acute endovascular or surgical treatment (acute group). Reruptures occurred in 3% (26/864) of the acute group and 1% (1/92) of the delayed group (p = 0.51). After propensity adjustments, the odds of residual aneurysm (OR = 0.09; 95% CI = 0.04-0.17; p < 0.001) or retreatment (OR = 0.14; 95% CI = 0.06-0.29; p < 0.001) was significantly lower among the delayed group. The OR was 0.50 for rerupture, after propensity adjustments, in the delayed setting (p = 0.03). Mean Glasgow Coma Scale scores at admission in the acute and delayed groups were 11.5 and 13.2, respectively (p < 0.001).

CONCLUSIONS

Delayed microsurgical management of aSAH, if required for definitive treatment, appeared to be noninferior with respect to retreatment, residual, and rerupture events in our cohort after adjusting for initial disease severity and significant confounding variables.

Improving Safety and Quality During Interhospital Transfer of Patients With Nontraumatic Intracranial Hemorrhage: A Simulation-Based Pilot Program

BACKGROUND

The presentation of critically ill patients to emergency departments often necessitates interhospital transfer (IHT) to a tertiary care center for specialized neurocritical care. Patients with nontraumatic intracranial hemorrhage represent a critically ill population subject to high rates of IHT and who is thus an important target for research and quality improvement of IHT. We describe the use of an innovative simulation methodology engaging transfer staff, clinicians, and stakeholders to refine and facilitate the adoption of a standardized IHT protocol for transferring patients with neurovascular emergencies.

METHODS

This was a qualitative study using a phenomenological approach. Participants consisted of IHT call center staff members, neurointensivists, neurosurgeons, and emergency physicians. We conducted a standardized telephone-based simulation case to prime participants for feedback on their experiences with IHT for intracranial hemorrhage patients. Facilitators conducted focus groups immediately after the simulation to identify process improvement opportunities. A structured thematic analysis identified overarching concepts from the data.

RESULTS

We achieved data saturation with 7 simulations and a total of 24 participants. Thematic analysis identified 3 IHT-specific themes: (1) challenges unique to multispecialty critical illness, (2) interdisciplinary relationships and dynamics, and (3) communication and information processing for IHT. Three quality improvement initiatives emerged from the debriefings: standardized communication checklist, early acceptance protocol, and structure for telephone-based care handoffs.

CONCLUSIONS

We demonstrate the use of telephone-based simulation technology to identify potential pitfalls and accelerate the adoption of a new IHT protocol for patients with nontraumatic intracranial hemorrhage. New quality improvement strategies can organically result through interprofessional debriefings for patients with potentially complex handoffs between hospitals.

Interhospital transport of critically ill patients: A prospective observational study of patient and transport characteristics

BACKGROUND

The cohort of critically ill patients transported between Intensive Care Units (ICUs) in Norway has not been studied previously. The aim of this study was to describe the characteristics of patients and transports for different types of interhospital transfers and explore whether there were differences in morbidity and mortality between the different transfer categories and the general Norwegian ICU population.

METHODS

All transports of critically ill adult patients transferred between two geographically different Intensive Care Units during a one-year period were registered. Patient and transport data were obtained from The Norwegian Intensive Care Registry, The Norwegian Cause of Death Registry, the hospital Electronic Patient Journal, the Air Ambulance Journal System, and the Emergency Medical Communication Centre database.

RESULTS

821 transports of 788 surgical and medical patients were enrolled. Simplified Acute Physiology Scores (SAPSII) were 43, 36 and 38 for urgent secondary transport, non-urgent secondary transport and return transfers, respectively. These were comparable to nationwide SAPSII scores that were 40 for university hospitals and 34 for local hospitals during the same time period. The return transfers had a median SOFA-score of 4.7 and 53% were mechanically ventilated. Only 33% of return transfers were performed by established teams.

CONCLUSION

Intensive care patients transferred between ICUs are as critically ill as the rest of the ICU population, with a similar morbidity and mortality. The return transfers of ICU-patients appear under-triaged compared to secondary transports in terms of allocated resources.

Neurosurgical Admission Later Than 4 h After the Emergency Call Does Not Result in Worse Long-Term Outcome in Subarachnoid Haemorrhage

Background: Few studies have investigated the importance of the time interval between contact to the emergency medical service and neurosurgical admission in patients with spontaneous subarachnoid haemorrhage. We hypothesised that longer time to treatment would be associated with an increased risk of death or early retirement.

Methods: This was a retrospective observational study with 4 years follow-up. Those who reached a neurosurgical department in fewer than 4 h were compared with those who reached it in more than 4 h. Individual level data were merged from the Danish National Patient Register, medical records, the Copenhagen Emergency Medical Dispatch Centre, the Civil Registration System, and the Ministry of Employment and Statistics Denmark. Patients were ≥18 years and had a verified diagnosis of spontaneous subarachnoid haemorrhage. The primary outcome was death or early retirement after 4 years.

Results: Two hundred sixty-two patients admitted within a three-and-a-half-year time period were identified. Data were available in 124 patients, and 61 of them were in their working age. Four-year all-cause mortality was 25.8%. No significant association was found between time to neurosurgical admission and risk of death or early retirement (OR = 0.35, 95% confidence interval [CI]: 0.10–1.23, p = 0.10).

Conclusion: We did not find an association between the time from emergency telephone call to neurosurgical admission and the risk of death or early retirement.

National Trends in Transfer of Patients with Primary Intracerebral Hemorrhage: An Analysis of 12-Year Nationwide Data

OBJECTIVES

The guidelines of the American Hospital Association encourage transferring intracerebral hemorrhage patients from community hospitals to centers with stroke expertise. However, research on the differences in outcomes between transferred intracerebral hemorrhage hospitalizations and directly admitted hospitalizations have been largely limited to small single-center studies. In this study, we explored the national trends in transferred intracerebral hemorrhage hospitalizations, as well as evaluated the differences, in terms of demographic characteristics, co-morbidity, resource utilization, and outcomes, between transferred intracerebral hemorrhage hospitalizations and directly admitted hospitalizations.

MATERIALS AND METHODS

From the National Inpatient Sample (2004 - 2016), we assessed the linear trends in the proportion of interhospital transfers for intracerebral hemorrhage hospitalizations. We constructed a series of multivariate logistic regression models to explore the association of transfer status with inpatient mortality and discharge disposition, controlling for demographic, clinical, and hospital characteristics. We used survey design variables to report nationally weighted estimates.

RESULTS

Among 786,999 hospitalizations, 137,340 (17.5%, 95% CI: 16.4-18.6) were transferred. Overall, interhospital transfers for intracerebral hemorrhage has been increasing over the 12-year period of this study. Patients in transferred hospitalizations were younger, more likely to be white, and more likely to have private insurance. Transferred hospitalizations were associated with significantly lower adjusted odds of inpatient mortality, compared to directly admitted hospitalizations.

CONCLUSIONS

As the US healthcare system continues shifting towards value-based care, evidence on the short- and long-term outcomes of transfer of intracerebral hemorrhage patients will inform optimal management of intracerebral hemorrhage patients.

The Maryland Acute Stroke Emergency Medical Services Routing Pilot: Expediting Access to Thrombectomy for Stroke

Background: Mechanical thrombectomy (MT) is the standard of care for acute ischemic stroke caused by large vessel occlusion, but is not available at all stroke centers. Transfers between hospitals lead to treatment delays. Transport directly to a facility capable of MT based on a prehospital stroke severity scale score has been recommended, if transportation time is less than 30 min.

Aims: We hypothesized that an Emergency Medical Services (EMS) routing algorithm for stroke, using the Los Angeles Motor Scale (LAMS) in the field, would improve time from last known well to MT, without causing patients to miss the IV Thrombolysis (IVT) window.

Methods: An EMS algorithm in the Baltimore metro area using the LAMS was implemented. Patients suspected of having an acute stroke were assessed by EMS using the LAMS. Patients scoring 4 or higher and within 20 h from last known well, were transported directly to a Thrombectomy Center, if transport could be completed within 30 min. The algorithm was evaluated retrospectively with prospectively collected data at the Thrombectomy Centers. The primary outcome variables were proportion of patients with suspected stroke rerouted by EMS, proportion of rerouted ischemic stroke patients receiving MT, time to treatment, and whether the IVT window was missed.

Results: A total of 303 patients were rerouted out of 2459 suspected stroke patients over a period of 6 months. Of diverted patients, 47% had acute ischemic stroke. Of these, 48% received an acute stroke treatment: 16.8% IVT, 17.5% MT, and 14% MT+IVT. Thrombectomy occurred 119 min earlier in diverted patients compared to patients transferred from other hospitals (P = 0.006). 55.3% of diverted patients undergoing MT and 38.2% of patients transferred from hospital to hospital were independent at 90 days (modified Rankin score 0–2) (P = 0.148). No patient missed the time window for IVT due to the extra travel time.

Conclusions: In this retrospective analysis of prospectively acquired data, implementation of a pre-hospital clinical screening score to detect patients with suspected acute ischemic stroke due to large vessel occlusion was feasible. Rerouting patients directly to a Thrombectomy Center, based on the EMS algorithm, led to a shorter time to thrombectomy.

Interhospital Transfer of Intracerebral Hemorrhage Patients Undergoing Minimally Invasive Surgery: The Experience of a New York City Hospital System

OBJECTIVE

The impact of interhospital transfer (IHT) on outcomes of patients with intracerebral hemorrhage (ICH) has not been well studied. We seek to describe the protocolized IHT and systems of care approach of a New York City hospital system, where ICH patients undergoing minimally invasive surgery (MIS) are transferred to a dedicated ICH center.

METHODS

We retrospectively reviewed 100 consecutively admitted patients with spontaneous ICH. We gathered information on demographics, variables related to IHT, clinical and radiographic characteristics, and details about the clinical course and outpatient follow-up. We grouped patients into 2 cohorts: those admitted through IHT and those directly admitted through the emergency department. Primary outcome was good functional outcome at 6 months, defined as modified Rankin Scale score 0-3.

RESULTS

Of 100 patients, 89 underwent IHT and 11 were directly admitted. On multivariable analysis, there were no significant differences in 6-month functional outcome between the 2 cohorts. All transfers were managed by a system-wide transfer center and 24/7 hotline for neuroemergencies. An ICH-specific IHT protocol was followed, in which a neurointensivist provided recommendations for stabilizing patients for transfer. Average transfer time was 199.7 minutes and average distance travelled was 13.6 kilometers.

CONCLUSIONS

In our hospital system, a centralized approach to ICH management and a dedicated ICH center increased access to specialist services, including MIS. Most patients undergoing MIS were transferred from outside hospitals, which highlights the need for additional studies and descriptions of experiences to further elucidate the impact of and best protocols for the IHT of ICH patients.

Use of Telemedicine to Improve Interfacility Communication and Aid in Triage of Patients with Intracerebral Hemorrhage: A Pilot Study

INTRODUCTION

Over the past several years there has been a dramatic increase in the implementation of telemedicine technology to aid in the delivery of care across community, inpatient, and emergency settings. This technology has proved valuable for acute life-threatening clinical scenarios. We aimed to pilot a novel neurosurgical telemedicine program within an academic tertiary care center to assist in consultation of patients with high-grade intracranial hemorrhage (ICH) (ICH score 4, 5).

METHODS

A quality improvement conceptual framework was developed. Subsequently, a process map and improvement interventions were created. Patients in community hospitals with high-grade ICH or pre-existing Do Not Resuscitate/Do Not Intubate orders with an admitting diagnosis of ICH triggered a TeleNeurosurgery consultation. Patients who met the inclusion criteria, with consent of their decision makers, were enrolled in the study. Post-encounter physician surveys were used to evaluate overall satisfaction with the implementation.

RESULTS

This 18-month pilot study proved feasible, with an enrollment of 63.6% (n = 14 of 22) of patients who met criteria. All patients who were enrolled in the study and participated in TeleNeurosurgery consultation remained at the presenting facility for end-of-life care and palliative medicine consultation. Both community emergency physicians and subspecialists who performed the consultations reported satisfaction with the TeleNeurosurgery consultation process and a perceived benefit both to patients, families, and emergency medicine physicians.

CONCLUSIONS

The program proved feasible and several areas in need of improvement within the health system were identified. Emergency physicians reported comfort with the process, program effectiveness, and improved access to care by implementation of this program.

A Multimodal Intervention to Improve the Quality and Safety of Interhospital Care Transitions for Nontraumatic Intracerebral and Subarachnoid Hemorrhage

BACKGROUND

Regionalization of care has increased interhospital transfers (IHTs) of nontraumatic intracerebral hemorrhage (ICH) and subarachnoid hemorrhage (SAH) to specialized centers yet exposes patients to the latent risks inherent to IHT. The researchers examined how a multimodal quality improvement intervention affected quality and safety measures for patients with ICH or SAH exposed to IHT.

METHODS

Pre and post analyses of timeliness, effectiveness, and communication outcome measures were performed for patients transferred to an urban, academic center with nontraumatic ICH/SAH following implementation of a multimodal intervention. Intervention components included clinical practice guideline dissemination, IHT process redesign, electronic patient arrival notification, electronic imaging exchange, and electronic health record improvements. Three months of preintervention outcomes were compared to six months of postintervention outcomes to assess impact and sustainability of the intervention; t-tests and chi-square tests were used to compare continuous and proportional outcomes, respectively.

RESULTS

The IHT study population included 106 patients (37 preintervention, 69 postintervention). Significant improvements were observed in timeliness outcomes, including emergency department (ED) time to admission order (preintervention median: 66 minutes vs. postintervention: 33 minutes, p = 0.008), ED boarding time (preintervention median: 223 minutes vs. postintervention: 93 minutes, p = 0.001), and ED length of stay (preintervention median: 300 minutes vs. postintervention: 150 minutes, p ≤ 0.0001). Verbal communication between ED and neurocritical care clinicians prior to IHT improved from 40.0% preintervention to 90.9% postintervention.

CONCLUSION

Application of scripted quality improvement interventions as part of the IHT process is feasible and effective at improving the timeliness of care and communication of critical information in patients with nontraumatic ICH/SAH.

Time to treatment following an aneurysmal subarachnoid hemorrhage, rural place of residence and inter-hospital transfers

BACKGROUND

Little is known about how transfers influence time to treatment for cases of aneurysmal subarachnoid hemorrhage (aSAH). We examine the effect of geographical location, socioeconomic status and inter-hospital transfer on time to treatment following an aSAH.

METHODS

A state-wide retrospective cohort study was established from 2010-2014. Time intervals from ictus to treatment were calculated. Linear regression examined associations between transfer status, place of residence and socioeconomic status and log-transformed times to treatment.

RESULTS

The median (IQR) time to intervention was 13.78 (6.48-20.63) hours. Socioeconomic disadvantage was associated with a 1.52-fold increase in the time to hospital (p<0.05) and a 1.76-fold increase in time to neurosurgical admission (p<0.05). Residing in an outer regional area was associated with a 2.27-fold increase (p<0.05) in time to neurosurgical admission. Inter-hospital transfers were associated with a 6.26-fold increase in time to neurosurgical admission (p<0.05).

CONCLUSIONS

The time to treatment was negatively influenced by socioeconomic disadvantage; geographical location and inter-hospital transfers. The urgent transfer of individuals with suspected aSAH is undeniably necessary when neurosurgical services are unavailable locally. The timeliness and organisation of transfers should be reviewed to overcome the potential vulnerability to poor outcomes for people from rural and disadvantaged areas.

The Impact of Interhospital Transfers on Surgical Quality Metrics for Academic Medical Centers

The emergence of pay-for-performance systems pose a risk to an academic medical center's (AMC) mission to provide care for interhospital surgical transfer patients. This study examines quality metrics and resource consumption for a sample of these patients from the University Health System Consortium (UHC) and our Department of Surgery (DOS). Standard benchmarks, including mortality rate, length of stay (LOS), and cost, were used to evaluate the impact of inter-hospital surgical transfers versus direct admission (DA) patients from January 2010 to December 2012. For 1,423,893 patients, the case mix index for transfer patients was 38 per cent (UHC) and 21 per cent (DOS) greater than DA patients. Mortality rates were 5.70 per cent (UHC) and 6.93 per cent (DOS) in transferred patients compared with 1.79 per cent (UHC) and 2.93 per cent (DOS) for DA patients. Mean LOS for DA patients was 4 days shorter. Mean total costs for transferred patients were greater $13,613 (UHC) and $13,356 (DOS). Transfer patients have poorer outcomes and consume more resources than DA patients. Early recognition and transfer of complex surgical patients may improve patient rescue and decrease resource consumption. Surgeons at AMCs and in the community should develop collaborative programs that permit collective assessment and decision-making for complicated surgical patients.

Impact of interhospital transfer on clinical outcomes and costs of extracorporeal life support

BACKGROUND

The impact of interhospital transfers for extracorporeal life support have not been studied in large datasets. The present study sought to determine the impact of such patient transfers on survival, complications, and hospitalization costs.

METHODS

The 2010 to 2016 database of the National Inpatient Sample was used to identify all adults who underwent extracorporeal life support. Patients were categorized based on whether or not they were transferred to another facility. Trend analysis and multivariable models were used to characterize the impact of inter hospital transfer on in-hospital mortality, complications, duration of stay, and costs.

RESULTS

Of an estimated 29,298 extracorporeal life support hospitalizations during the study period, 36.8% were transferred from an outside facility. Extracorporeal life support hospitalizations experienced a 7-fold increase with no difference in mortality between transferred and not transferred cohorts in 2016 (4.79% vs 4.79%, P = .97). Mortality rates were less for patients transferred to high volume centers compared to low volume hospitals (48.7% vs 51.6%, P < .001). Transfer to a low volume hospital for cardiogenic shock was associated with greater odds of mortality (adjusted odds Rratio: 2.25, confidence interval 1.01-5.03).

CONCLUSION

Utilization of extracorporeal life support in both transferred and not transferred patients has statistically significantly increased with a decrement in mortality for those transferred. Survival in the transferred cohort is strongly associated with extracorporeal life support procedure volume of the center and this must be taken into account when considering extracorporeal life support transfer.

Complications During Inter-Hospital Transfer of Patients with Acute Ischemic Stroke for Endovascular Therapy

Purpose: Few data are available on complications occurring during inter-hospital transfer from a primary stroke center (PSC) to a comprehensive stroke center (CSC) for endovascular treatment (EVT) after large vessel occlusion (LVO). Therefore, we prospectively studied data from consecutive patients transferred from our PSC to the next CSC during 4 years to determine the incidence and risk factors of complications during transfer. Methods: This observational, single-center study included consecutive patients transferred from January 1, 2015 to December 31, 2018. During inter-hospital transfer, all medical incidents were systematically recorded. A new complete clinical examination was performed on arrival at the CSC. Results: Among the 253 patients transferred to the CSC during the study period, 68 (26.9%) had one or more complications. In 11 patients (4.3%) these were life-threatening and required emergency intervention by a physician. Baseline characteristics were not different between patients with and without complications, except for the LVO location. Specifically, basilar artery (BA) occlusion was strongly associated with complications during the transport (p < 0.0005). Conclusion: Complications occurred in 26.9% of patients during transfer. Only BA occlusion could predict complication during transfer. Future studies should identify variables to help stratifying patients at high and low risk of complications during transportation.

[Risk factors for mortality after subarachnoid hemorrhage: a retrospective observational study]

BACKGROUND AND OBJECTIVES

Subarachnoid haemorrhage is an important cause of morbidity and mortality. The aim of the study was to determine predictors of mortality among patients with subarachnoid hemorrhage hospitalized in an Intensive Care Unit.

METHODS

This is a retrospective study of patients with subarachnoid hemorrhage admitted to the Intensive Care Unit of our institution during a 7 year period (2009-2015). Data were collected from the Intensive Care Unit computerized database and the patients' chart reviews.

RESULTS

We included in the study 107 patients with subarachnoid haemorrhage. A ruptured aneurysm was the cause of subarachnoid haemorrhage in 76 (71%) patients. The overall mortality was 40% (43 patients), and was significantly associated with septic shock, midline shift on CT scan, inter-hospital transfer, aspiration pneumonia and hypernatraemia during the first 72 hours of Intensive Care Unit stay. Multivariate analysis of patients with subarachnoid hemorrhage following an aneurysm rupture revealed that mortality was significantly associated with septic shock and hypernatremia during the first 72 hours of Intensive Care Unit stay, while early treatment of aneurysm (clipping or endovascular coiling) within the first 72 hours was identified as a predictor of a good prognosis.

CONCLUSIONS

Transferred patients with subarachnoid haemorrhage had lower survival rates. Septic shock and hypernatraemia were important complications among critically ill patients with subarachnoid haemorrhage and were associated increased mortality.

Determining rural risk for aneurysmal subarachnoid hemorrhages: A structural equation modeling approach

An aneurysmal subarachnoid hemorrhage (aSAH) carries a high disability burden. The true impact of rurality as a predictor of outcome severity is unknown. Our aim is to clarify the relationship between the proposed explanations of regional and rural health disparities linked to severity of outcome following an aSAH. An initial literature search identified limited data directly linking geographical location, rurality, rural vulnerability, and aSAH. A further search noting parallels with ischemic stroke and acute myocardial infarct literature presented a number of diverse and interrelated predictors. This a priori knowledge informed the development of a conceptual framework that proposes the relationship between rurality and severity of outcome following an aSAH utilizing structural equation modeling. The presented conceptual framework explores a number of system, environmental, and modifiable risk factors. Socioeconomic characteristics, modifiable risk factors, and timely treatment that were identified as predictors of severity of outcome following an aSAH and within each of these defined predictors a number of contributing specific individual predictors are proposed. There are considerable gaps in the current knowledge pertaining to the impact of rurality on the severity of outcome following an aSAH. Absent from the literature is any investigation of the cumulative impact and multiplicity of risk factors associated with rurality. The proposed conceptual framework hypothesizes a number of relationships between both individual level and system level predictors, acknowledging that intervening predictors may mediate the effect of one variable on another.

Risk factors for mortality after subarachnoid hemorrhage: a retrospective observational study

Background and objectives

Subarachnoid hemorrhage is an important cause of morbidity and mortality. The aim of the study was to determine predictors of mortality among patients with subarachnoid hemorrhage hospitalized in an Intensive Care Unit.

Methods

This is a retrospective study of patients with subarachnoid hemorrhage admitted to the Intensive of our institution during a 7 year period (2009-2015). Data were collected from the Intensive Care Unit computerized database and the patients’ chart reviews.

Results

We included in the study 107 patients with subarachnoid hemorrhage. A ruptured aneurysm was the cause of subarachnoid hemorrhage in 76 (71%) patients. The overall mortality was 40% (43 patients), and was significantly associated with septic shock, midline shift on CT scan, inter-hospital transfer, aspiration pneumonia and hypernatraemia during the first 72 hours of Intensive Care Unit stay. Multivariate analysis of patients with subarachnoid hemorrhage following an aneurysm rupture revealed that mortality was significantly associated with septic shock and hypernatremia during the first 72 hours of Intensive Care Unit stay, while early treatment of aneurysm (clipping or endovascular coiling) within the first 72 hours was identified as a predictor of a good prognosis.

Conclusions

Transferred patients with subarachnoid hemorrhage had lower survival rates. Septic shock and hypernatraemia were important complications among critically ill patients with subarachnoid hemorrhage and were associated increased mortality.

A Qualitative Study of Risks Related to Interhospital Transfer of Patients with Nontraumatic Intracranial Hemorrhage

GOAL

Interhospital transfer (IHT) facilitates access to specialized neurocritical care but may also introduce unique risk. Our goal was to describe providers' perceptions of safety threats during IHT for patients with nontraumatic intracranial hemorrhage.

MATERIALS AND METHODS

We employed qualitative, semi-structured interviews at an academic medical center receiving critically-ill neurologic transfers, and 5 referring hospitals. Interviewees included physicians, nurses, and allied health professionals with experience caring for patients transferred between hospitals for nontraumatic intracranial hemorrhage. Interviews continued until data saturation was reached. Coding occurred concurrently with interviews. Analysis was inductive, using the constant comparative method.

FINDINGS

The predominant impediments to safe, high-quality neurocritical care transitions between hospitals are insufficient communication, gaps in clinical practice, and lack of IHT structure. Insufficient communication highlights the unique communication challenges specific to IHT, which overlay and compound known intrahospital communication barriers. Gaps in clinical practice revolve primarily around the provision of neurocritical care for this patient population, often subject to resource availability, by receiving hospital emergency medicine providers. Lack of structure outlines providers' questions that emerge when institutions fail to identify process channels, expectations, and accountability during complex neurocritical care transitions.

CONCLUSIONS

The predominant impediments to safe, high-quality neurocritical care transitions between hospitals are insufficient communication, gaps in clinical practice, and lack of IHT structure. These themes serve as fundamental targets for quality improvement initiatives. To our knowledge, this is the first description of challenges to quality and safety in high-risk neurocritical care transitions through clinicians' voices.

Real-Time Surveys Reveal Important Safety Risks During Interhospital Care Transitions for Neurologic Emergencies

Critically ill patients may be exposed to unique safety threats as a result of the complexity of interhospital and intrahospital transitions involving the emergency department (ED). Real-time surveys were administered to clinicians in the ED and neuroscience intensive care unit of a tertiary health care system to assess perceptions of handoff safety and quality in transitions involving critically ill neurologic patients. In all, 115 clinical surveys were conducted among 26 patient transfers. Among all clinician types, 1 in 5 respondents felt the handoff process was inadequate. Risks to patient safety during the transfer process were reported by 1 in 3 of respondents. Perceived risks were reported more frequently by nurses (44%) than physicians/advanced practice providers (28%). Real-time survey methodology appears to be a feasible and valuable, albeit resource intensive, tool to identify safety risks, expose barriers to communication, and reveal challenges not captured by traditional approaches to inform multidisciplinary quality improvement efforts.

Effect of emergency medical service use on time interval from symptom onset to hospital admission for definitive care among patients with intracerebral hemorrhage: a multicenter observational study

Objective

This study evaluated whether emergency medical service (EMS) use was associated with early arrival and admission for definitive care among intracerebral hemorrhage (ICH) patients.

Methods

Patients with ICH were enrolled from 29 hospitals between November 2007 and December 2012, excluding those patients with subarachnoid hemorrhage, traumatic ICH, and missing information. The patients were divided into four groups based on visit type to the definitive hospital emergency department (ED): direct visit by EMS (EMS-direct), direct visit without EMS (non-EMS-direct), transferred from a primary hospital by EMS (EMS-transfer), and transferred from a primary hospital without EMS (non-EMS-transfer). The outcomes were the proportions of participants within early (<1 hr) definitive hospital ED arrival from symptom onset (pS2ED) and those within early (<4 hr) admission from symptom onset (pS2AD). Adjusted odds ratios were calculated to determine the association between EMS use and outcomes with and without inter-hospital transfer.

Results

A total of 6,564 patients were enrolled. The adjusted odds ratios (95% confidence intervals) for pS2ED were 22.95 (17.73–29.72), 1.11 (0.67–1.84), and 7.95 (6.04–10.46) and those for pS2AD were 5.56 (4.70–6.56), 0.96 (0.71–1.30), and 2.35 (1.94–2.84) for the EMS-direct, EMS-transfer, and non-EMS-direct groups compared with the non-EMS-transfer group, respectively. Through the interaction model, EMS use was significantly associated with early arrival and admission among direct visiting patients but not with transferred patients.

Conclusion

EMS use was significantly associated with shorter time intervals from symptom onset to arrival and admission at a definitive care hospital. However, the effect disappeared when patients were transferred from a primary hospital.

Clinical Outcomes among Transferred Children with Ischemic and Hemorrhagic Strokes in the Nationwide Inpatient Sample

INTRODUCTION

Children with ischemic stroke (IS) and hemorrhagic stroke (HS) may require interfacility transfer for higher level of care. We compared the characteristics and clinical outcomes of transferred and nontransferred children with IS and HS.

METHODS

Children aged 1-18 years admitted to hospitals in the United States from 2008 to 2011 with a primary discharge diagnosis of IS and HS were identified from the National Inpatient Sample database by ICD-9 codes. Using logistic regression, we estimated the odds ratios (OR) and 95% confidence intervals (CI) for in-hospital mortality and discharge to nursing facilities (versus discharge home) between transferred and nontransferred patients.

RESULTS

Of the 2815 children with IS, 26.7% were transferred. In-hospital mortality and discharge to nursing facilities were not different between transferred and nontransferred children in univariable analysis or in multivariable analysis that adjusted for age, sex, and confounding factors. Of the 6879 children with HS, 27.1% were transferred. Transferred compared to nontransferred children had higher rates of both in-hospital mortality (8% versus 4%, P = .003) and discharge to nursing facilities (25% versus 20%, P = .03). After adjusting for age, sex, and confounding factors, in-hospital mortality (OR 1.5, 95% CI 1.1-2.4, P = .04) remained higher in transferred children, whereas discharge to nursing facilities was not different between the groups.

CONCLUSION

HS but not IS was associated with worse outcomes for children transferred to another hospital compared to children who were not transferred. Additional study is needed to understand what factors may contribute to poorer outcomes among transferred children with HS.

Characteristics and Outcomes of Stroke Patients Transferred to Hospitals Participating in the Michigan Coverdell Acute Stroke Registry

BACKGROUND

Interhospital transfer of acute stroke patients is becoming increasingly important as regional stroke systems of care continue to evolve. We describe the characteristics and outcomes of stroke cases transferred to hospitals participating in the Michigan Coverdell Stroke Registry.

METHODS AND RESULTS

Thirty-six hospitals participated in the Michigan registry during 2009 to 2011. Transfer patients were transferred from another hospital either acutely or after admission. Multivariable logistic regression was used to determine predictors of transfer and the independent association between transfer and in-hospital mortality and complications. Of 16 202 acute stroke admissions, 19.1% were transferred. Independent predictors of being transferred included younger age, hemorrhagic stroke, and higher stroke severity, but having a past history of stroke decreased the likelihood of being transferred. Transferred cases had higher in-hospital mortality (12.0% versus 6.4%; P<0.001) compared with regular admissions and were more likely to suffer complications (18.4% versus 12.8%; P<0.001). These differences remained after adjustment for confounding variables (adjusted odds ratio for mortality =1.32, 95% confidence interval 1.12, 1.56; adjusted odds ratio for complications =1.39, 95% confidence interval 1.22, 1.58). Among ischemic stroke, elevated odds of poor outcomes among transferred patients remained after adjustment for stroke severity.

CONCLUSIONS

Transferred patients represent a complex admixture of patient characteristics that result in higher risks of poor outcomes. Our results suggest that it is prudent to account for patient transfer status when comparing hospital outcomes and that stroke registries need to expand their data collection capacity to provide a better understanding of the relative benefits and risks of transferring patients.

A population-based study of the incidence and case fatality of non-aneurysmal subarachnoid hemorrhage

BACKGROUND

There is a paucity of reliable and recent data regarding epidemiology of non-aneurysmal subarachnoid hemorrhage (SAH) in population-based studies.

OBJECTIVES

To determine the incidence and case fatality of non-aneurysmal SAH using a population-based design.

METHODS

Medical records and angiographic data of all patients from Stearns and Benton Counties, Minnesota, admitted with SAH were reviewed to identify incident case of non-aneurysmal SAH. Patients with a first-time diagnosis of non-aneurysmal SAH (based on two negative cerebral angiograms performed ≥7 days apart) between June 1st, 2012 and June 30th, 2014 were considered incident cases. We calculated the incidences of non-aneurysmal and aneurysmal SAH adjusted for age and sex based on the 2010 US census.

RESULTS

Of the 18 identified SAH among 189,093 resident populations, five were true incident cases of non-aneurysmal SAH in this population-based study. The age- and sex-adjusted incidence of non-aneurysmal SAH were 2.8 [95 % confidence interval (CI) 2.7-2·9] per 100,000 person-years which was lower than aneurysmal SAH incidence of 7.2 [95 % CI 7.1-7.4] per 100,000 person-years. The age-adjusted incidence of non-aneurysmal SAH was similar (compared with aneurysmal SAH) among men; 3.2 [95 % CI 3.1-3.3] per 100,000 person-years versus 2.2 [95 % CI 2.1-2.3] per 100,000 person-years, respectively. The age-adjusted case fatality rate at 3 months was 4.46 and 0.0 per 100,000 persons for aneurysmal and non-aneurysmal SAH, respectively.

CONCLUSIONS

The incidence of non-aneurysmal SAH was higher than previously reported particularly among men.

Emergent and Urgent Transfers to Neurosurgical Centers in Ontario

Critically ill neurosurgical patients require expedient access to neurosurgical centers (NC) to improve outcome. In regionalized health systems patients are often initially evaluated at a non-neurosurgical center (NNC) and are subsequently transferred to a NC using air or ground vehicles. We sought to identify barriers to accessing a NC for critically ill patients by analyzing interfacility transfer times and referral patterns in the province of Ontario. A retrospective observational analysis was undertaken. The cohort included patients in Ontario with emergent and urgent neurologic pathologies who underwent transfer from a NNC to NC between January 1, 2011 and December 31, 2013. Timing, clinical, and geographic data were collected for each transfer. We identified 1103 emergent/urgent transfers. The median transfer time to a NC was 3.4 h (IQR -2.2, 3.8) and varied by the geographic region of origin. A total of 17% of the patients bypassed a closer NC during transfer to their destination NC. Transfers that bypassed a closer NC travelled further (101 miles vs. 296 miles, p < 0.001), took longer (3.1 h vs. 3.9 h, p < 0.001), and in some regions were associated with a higher risk of in-transit clinical decline (3.0% vs. 8.3%, p < 0.05) when compared with transfers that ended at the closest NC. Regionalization of neurosurgical services in Ontario has led to heavy reliance upon patient transfers to maintain continuity of care. Access to a NC varied across the province, which may represent regional differences in neurosurgical bed availability, resource limitations at smaller NCs, or environmental factors. Our descriptions of referral patterns and transport times can guide health system planning in Ontario and similar jurisdictions in the United States and Canada.

Which factors influence decisions to transfer and treat patients with acute intracerebral haemorrhage and which are associated with prognosis? A retrospective cohort study

OBJECTIVES

To identify factors associated with the decision to transfer and/or operate on patients with intracerebral haemorrhage (ICH) at a UK regional neurosurgical centre and test whether these decisions were associated with patient survival.

DESIGN

Retrospective cohort study.

SETTING

14 acute and specialist hospitals served by the neurosurgical unit at Salford Royal NHS Foundation Trust, Salford, UK.

PARTICIPANTS

All patients referred acutely to neurosurgery from January 2008 to October 2010.

OUTCOME MEASURES

Primary outcome was survival and secondary outcomes were transfer to the neurosurgical centre and acute neurosurgery.

RESULTS

We obtained clinical data from 1364 consecutive spontaneous patients with ICH and 1175 cases were included in the final analysis. 140 (12%) patients were transferred and 75 (6%) had surgery. In a multifactorial analysis, the decision to transfer was more likely with younger age, women, brainstem and cerebellar location and larger haematomas. Risk of death in the following year was higher with advancing age, lower Glasgow Coma Scale, larger haematomas, brainstem ICH and intraventricular haemorrhage. The transferred patients had a lower risk of death relative to those remaining at the referring centre whether they had surgery (HR 0.46, 95% CI 0.32 to 0.67) or not (HR 0.41, 95% CI 0.22 to 0.73). Acute management decisions were included in the regression model for the 227 patients under either stroke medicine or neurosurgery at the neurosurgical centre and early do-not-resuscitate orders accounted for much of the observed difference, independently associated with an increased risk of death (HR 4.8, 95% CI 2.7 to 8.6).

CONCLUSIONS

The clear association between transfer to a specialist centre and survival, independent of established prognostic factors, suggests aggressive supportive care at a specialist centre may improve survival in ICH and warrants further investigation in prospective studies.