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The American Journal of Accountable Care June 2016
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A Hospital Discharge Navigation Program: The Positive Impact of Facilitating the Discharge Navigation Process
Sayeh Bozorghadad, BS; James Dove, BA; Leah Scholtis, PA-C; Chung-Yin Sherman, CRNP; Joseph Blansfield, MD; Marie Hunsinger, RN, BSHS; Anthony Petrick, MD; and Mohsen Shabahang, MD, PhD
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A Hospital Discharge Navigation Program: The Positive Impact of Facilitating the Discharge Navigation Process

Sayeh Bozorghadad, BS; James Dove, BA; Leah Scholtis, PA-C; Chung-Yin Sherman, CRNP; Joseph Blansfield, MD; Marie Hunsinger, RN, BSHS; Anthony Petrick, MD; and Mohsen Shabahang, MD, PhD
This study demonstrates that the implementation of a discharge navigation program led to earlier writing of discharge orders and patient release from the hospital.
ABSTRACT

Objectives: The aim of this study was to determine the effectiveness of a discharge navigation program on the time of patient discharge at a tertiary care center.

Study Design: Delayed patient discharges present challenges to the efficient throughput of patients. A standardized discharge navigation program is one potential method to improve time of patient discharge.

Methods: This was a retrospective review of adult patients who underwent an elective colectomy and were discharged home between January 2007 and May 2014. A program was set up utilizing navigators to facilitate and standardize the discharge process. Three groups were compared: Phase I (prior to implementation), Phase II (1 navigator focusing on same-day discharge), and Phase III (2 navigators focusing on same-day and future discharges). The main outcome measures were patient discharge time, the time discharge orders were written, readmission, and length of stay.

Results: After the discharge navigation program was implemented, more discharge orders were written before 11 AM (65.3% post implementation vs 50% pre-implementation; P <.01) and more patients left the hospital prior to 2 PM (60.2% vs 52.5%; P = .02). Median discharge time also decreased post implementation by 30 minutes (P = .01). Readmission rates (15.2% vs 15.7%; P = .82) and median length of stay (4 vs 4 days; P = .21) remained equivalent between both groups.

Conclusions: The implementation of a standardized discharge navigation program in patients undergoing elective colorectal surgery led to a significantly earlier time of discharge without adversely affecting the readmission rate.
In the era of increasing cost constraints, inefficiencies in patient discharge present a major challenge to patient throughput in many health systems. Inefficient discharge results in over-occupancy, which can prevent the admission and treatment of new patients.1 A study conducted by Amato-Vealey et al determined that delayed discharge leads to a 4-stage domino effect of patient gridlock, beginning with the hospital reaching maximum capacity and ultimately being unable to admit new patients.2 The first stage begins with delayed discharge from medical and surgical floors, causing the inpatient consensus to reach maximum capacity. This prevents patients from being transferred out of the intensive care unit (ICU) in the second stage. The hospital is then operating at full census in the third stage, and the emergency department (ED), postanesthesia care unit, and ICU cannot discharge or move patients to other care areas. This backup finally results in delayed or cancelled surgical procedures, preventing the hospital from admitting new patients in the final stage.

Patient gridlock, a direct result of delayed discharge, inhibits efficient hospital throughput and causes diminished quality of care.3 Another study, conducted by Khanna et al, confirms the importance of discharging patients earlier in the day in order to improve hospital occupancy rates.4 They concluded that on days when the “peak” of discharge rates lagged behind the admissions peak by more than 5 hours, rates of overcrowding increased significantly. However, hospital occupancy rates decreased when the majority of discharges occurred earlier in the day, specifically within 5 hours of the peak admission time. For all the reasons stated, it is imperative to tackle the issue of delays in discharge.

Healthcare analysts have looked to other industries for potential solutions. A study conducted by Zygourakis et al determined that the principles used in hotel customer service could be utilized to make the necessary adjustments to improve overall patient satisfaction.5 The researchers used a method that provided more information pre- and postoperatively, and during the discharge process, in order to facilitate communication among patients, caregivers, and nursing staff. Using a model from the hotel industry, patients were provided with “preoperative expectation letters,” effectively reducing preoperative anxiety and demonstrating that the application of these general principles to improve customer service and satisfaction can efficiently be applied to the patient discharge process. Richman et al explored another potential solution through their research on a 3-step process used to identify, frame, and receive feedback regarding the barriers and means to improve post-ED and inpatient discharge care coordination.6 They found that the lack of both a consistent and timely notification system, as well as an integrated electronic health record (EHR), played significant roles in hindering timely patient discharge.

Many attempts have been made to solve the issue of delay in discharge. However, few solutions have shown the desired outcome. A novel standardized discharge navigation program was developed for colorectal surgery patients at a rural tertiary care center. The program was established in order to create a standardized discharge protocol that could eventually be used throughout the entire hospital. The aim of this study was to determine the effect of this navigation program on the efficiency of the discharge process.

METHODS

Setting and Subjects

This was a retrospective cohort study conducted in the Department of General Surgery at a tertiary care center. Using a retrospective database, 1005 patients older than 18 years who underwent elective inpatient colorectal surgical procedures between January 2007 and May 2014 were identified. Additional inclusion criteria further limited the cohort to patients discharged during the workweek (discharge navigators were unavailable on the weekends) and whose disposition was to their homes. This study was reviewed and approved by the institutional review board.

Description of Program

The discharge navigation program was conceived and implemented in September 2011. A physician extender was hired with the sole responsibility of facilitating the discharge of general surgical patients. The discharge process was as follows:

          1. Navigator met with house staff after morning rounds to identify patients ready for discharge;

          2. Medication review;

          3. Prescriptions confirmed;

          4. Wound care teaching; and

          5. Confirmation of follow-up appointments.

Due to the high volume of patients, the physician extender was only able to concentrate on the patients who were slated for discharge that day. In order to enhance the program, a second discharge navigator was added in May 2013. This allowed one navigator to focus on the discharges for the day of and the second navigator to engage the patients early in the admission process in order to make the appropriate preparations for discharge.

Patient Cohorts Patients were divided into 3 cohorts based on the implementation of the discharge navigation program. Phase I, from January 2007 to September 2011, included 636 patients before the program was put into place. Phase II, from September 2011 to May 2013, included 220 patients discharged after the program was put into effect with only 1 discharge navigator. Phase III, from May 2013 to May 2014, included 149 patients discharged with 2 navigators fully operational (Table 1).

Data Collection and Analysis

Patient demographics included gender, age, body mass index, duration of surgery, and comorbidities. Other surgical characteristics measured included the primary diagnosis and type of surgical procedure performed. Discharge characteristics, such as the day of the week patients were discharged from the hospital, were also collected. Patients were compared within and between cohorts, and data was collected retrospectively from the institution’s EHR and from paper charts prior to the induction of the EHR and Epic Systems.

Primary Outcome Measure: Time of Patient Discharge

Time of patient discharge was defined as the actual hour of day the patient left the hospital; this information was obtained from the EHR. The 3 phase cohorts were compared for patients that were discharged before 2 PM and for patients discharged after 2 PM— that time being the benchmark set by our institution.

Secondary Outcome Measures

Secondary outcome measures were the time orders were written, 30- day readmission rates, 30-day return to ED rates, and length of stay (LOS); this information was obtained from the EHR. Secondary outcomes were measured and compared throughout the 3 phases of the implementation of the discharge navigation program.

Statistical Analysis

The characteristics of the study population were described using means ± standard deviation for continuous data, median (interquartile range [IQR]) for nonparametric data, and frequencies (%) for categorical data. Characteristics were compared between groups using χ2 or Fisher’s exact test for categorical data, 2 sample t tests for continuous data, and the Wilcoxon rank-sum test for nonparametric data. All significance testing was 2-sided with an alpha set at the level of .05. Analyses were performed using SAS version 9.4 (SAS Institute, Cary, North Carolina).

RESULTS

Patient Demographics

The demographic data related to the cohorts from Phases I through III were comparable. The only exception was with age (P = .01) (Table 2), as more operations were being done on younger patients in Phase II and III compared with Phase I. Primary diagnosis (P = .03) and surgical procedure (P = .01) were found to be significantly different between the cohorts (Table 3). In Phase II and III, more patients were diagnosed with colon cancer (odds ratio [OR], 1.6; 95% CI, 1.1- 2.3), diverticular disease (OR, 1.5; 95% CI, 1.02-2.2), and inflammatory bowel disease (OR, 2.4; 95% CI, 1.5-3.8) when referenced to other disease. In Phase I, more patients were diagnosed with rectal cancer (OR, 1.9; 95% CI 1.1-3.3) when referenced to inflammatory bowel disease. In Phases II and III, less patients underwent left colectomy (OR, 0.3; 95% CI, 0.1-0.6), right colectomy (OR, 0.3; 95% CI, 0.2-0.7), and sigmoid/lower anterior resection of the colon (OR, 0.3; 95% CI, 0.1-0.6) when referenced to transverse procedures. Finally, the distribution of discharged patients over the days of the week was similar.

Primary Outcome: Time of Patient Discharge

In Phase I, 52.5% of patients left the hospital by 2 PM. This increased to 60.2% in Phases II and III. These results were found to be statistically significant (P = .02) (Figure 1). The overall median discharge time was also calculated, and it improved by 30 minutes between phases. While the median time of patient discharge was 1:45 PM in Phase I, patients were discharged by 1:15 PM in Phases II and III. This was also determined to be statistically significant (P = .01) (Table 3).

Secondary Outcomes: Time of Written Orders, Readmission and Return to ED Rates, and LOS

In Phase I, 50% of discharge orders were written before 11 AM, 30% were written between 11 AM and 2 PM, and 20% were written after 2 PM. By Phases II and III, the number of orders written before 11 AM increased to 65%, which was found to be statistically significant (P <.0001). Additionally, only 26% of orders were written between 11 AM and 2 PM, and the final 9% were written after 2 PM (Figure 2). No significant changes were determined in LOS and readmission and return to ED (within 30 days) rates throughout the 3 phases (Table 4).

DISCUSSION

Delayed discharge has continued to affect the efficient operations of multiple departments within hospitals.7 The discharge navigation program was conceived at this tertiary care center because of consistent delays in patient discharge: the program was meant to improve the hospital’s ability to admit and treat new patients by facilitating the timely discharge of patients already in the hospital. This program focused on discharging patients earlier in the day; it did not focus on LOS or readmission rates. The program began with 1 navigator coordinating same-day discharges, but an increased need resulted in acquiring a second navigator. The 2 navigators worked together to identify patients ready for discharge on a given day, while simultaneously beginning the coordination of patient discharge soon after their admission to the hospital.

 
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