What Every Hospital Should Know About Surgical Site Infections (SSIs)

Surgical Site Infections (SSIs) are among the most common and costly complications hospitals face after surgery. They affect patient recovery, increase length of stay, and place significant financial strain on hospitals and surgical centers. 

And yet, the vast majority of SSIs are preventable. 

In today’s value-based care environment, SSI prevention is not just a clinical concern—it’s a strategic priority. Hospitals looking to reduce readmissions, improve outcomes, and protect reimbursement must treat SSI mitigation as a central pillar of perioperative planning. 

 What Are SSIs? 

A Surgical Site Infection occurs when bacteria infect the incision site or deeper tissues after surgery. They can be: 

• Superficial (affecting the skin only) 

• Deep incisional (involving deeper soft tissues) 

• Organ/space (affecting areas handled during surgery) 

The Centers for Disease Control and Prevention (CDC) estimates that SSIs occur in 2% to 5% of patients undergoing inpatient surgery in the U.S., making them the most common and costly of all hospital-acquired infections (HAIs) [1]. 

The Financial Impact 

SSIs aren’t just clinical setbacks, they’re economic ones: 

• The average cost of a single SSI ranges from $20,000 to $90,000, depending on severity [2]. 

• Hospitals can incur $3.5 million to $10 million annually in SSI-related costs [3]. 

• SSIs increase length of stay by an average of 5 days and significantly raise readmission risk [4]. 

In bundled payment environments, hospitals often absorb the cost of these complications—which can erode margins and affect quality scores. 

Who’s at Risk? 

Common patient-related risk factors for SSIs include: 

• Diabetes or uncontrolled blood glucose 

• Obesity or malnutrition 

• MRSA/MSSA colonization 

• Frailty 

• Immunosuppression 

• Tobacco use 

• Inadequate pre-op hygiene or decolonization 

Many of these risks can be identified and modified before surgery—but only with a systematic preoperative optimization strategy. 

How Hospitals Can Reduce SSIs 

At Soteria, we focus on proactive, evidence-based perioperative optimization. Our protocols are designed to address SSI risk before surgery through: 

• MRSA/MSSA screening and decolonization protocols 

• Nutritional support for malnourished or frail patients 

• Blood glucose monitoring and stabilization in diabetic patients 

• Education and reminders for patients around hygiene and medication 

• Standardized perioperative checklists to eliminate variability 

We also use digital tools to deliver patient-facing checklists and medication instructions—reducing missed steps that often lead to infections. 

 Why This Matters for Hospital Leadership 

Hospitals that implement structured optimization and infection prevention programs report: 

• Lower readmission rates 

• Improved patient satisfaction 

• Fewer CMS penalties for HAIs and complications 

• Better performance in value-based care models 

In fact, one study found that structured optimization reduced SSI-related complications by more than 50% across multiple surgical disciplines [5]. 

Every SSI prevented represents a safer patient, a stronger care team, and a smarter health system. 

As hospitals face mounting pressure to deliver quality care with tighter resources, SSI prevention through preoperative optimization is one of the highest-yield interventions available. 

📚 References 

1. Centers for Disease Control and Prevention. Healthcare-associated Infections: Surgical Site Infections (SSIs). CDC HAI Data 

2. Zimlichman E, et al. Health Care–Associated Infections: A Meta-analysis of Costs and Financial Impact on the US Health Care System. JAMA Intern Med. 2013;173(22):2039-2046. 

3. de Lissovoy G, et al. Surgical Site Infection: Incidence and Impact on Hospital Utilization and Treatment Costs. Am J Infect Control. 2009;37(5):387-397. 

4. Urban JA. Cost Analysis of Surgical Site Infections. Surg Infect (Larchmt). 2006;7 Suppl 1:S19-22. 

5. Ban KA, et al. American College of Surgeons and Surgical Infection Society: Surgical Site Infection Guidelines, 2016 Update. J Am Coll Surg. 2017;224(1):59–74.