sterile dressing of ostomy with purulent drainage - Nursing Case Study

Pathophysiology

• Primary mechanism: Purulent drainage from an ostomy indicates an infection at the stoma site, often due to bacterial infiltration. This can occur when the skin barrier is compromised, allowing pathogens to invade and proliferate in the tissue around the stoma.

• Secondary mechanism: The body’s inflammatory response to infection leads to increased production of exudate as white blood cells and other immune factors gather to fight the infection. This response results in purulent drainage, characterized by thick, yellow, or green discharge.

• Key complication: If not properly managed, persistent infection and inflammation can lead to tissue breakdown and delayed healing around the stoma, increasing the risk of further complications such as abscess formation or systemic infection.

Patient Profile

Demographics:

62-year-old male, retired construction worker

History:

• Key past medical history: Colorectal cancer, diabetes mellitus type 2, hypertension

• Current medications: Metformin, Lisinopril, Atorvastatin

• Allergies: Penicillin

Current Presentation:

• Chief complaint: Increasing pain and purulent drainage around ostomy site

• Key symptoms: Redness and swelling around the ostomy, fever, fatigue

• Vital signs: Temperature 101.3°F, Heart rate 102 bpm, Blood pressure 150/92 mmHg, Respiratory rate 22 breaths per minute

Section 1

As the healthcare team continues to monitor the patient, new diagnostic results reveal significant concerns. A complete blood count (CBC) shows an elevated white blood cell count of 14,000/mm³, indicating an active infection. C-reactive protein (CRP) levels are also elevated at 25 mg/L, further confirming systemic inflammation. A wound culture of the purulent drainage from the ostomy site identifies the presence of Staphylococcus aureus, which, given the patient's penicillin allergy, necessitates a careful selection of alternative antibiotics. Based on the culture and sensitivity results, the team decides to start the patient on vancomycin, aiming to target the resistant bacteria effectively.

The imaging studies, including an abdominal ultrasound, highlight a small fluid collection adjacent to the ostomy, suggesting a developing abscess. This finding is concerning, as it indicates a possible progression of the infection. Given the patient's history of diabetes mellitus type 2, there is an increased risk for impaired wound healing due to poor glycemic control. This necessitates a comprehensive management plan not only to address the infection but also to optimize blood glucose levels to support the healing process.

The healthcare team now faces the challenge of preventing further complications by managing the infection aggressively while providing supportive care. This involves not only antibiotic therapy but also meticulous wound care, strict blood pressure control to reduce additional stress on the body, and tight blood glucose monitoring. The team must also consider the potential need for surgical intervention if the abscess does not resolve with medical management. The upcoming days will be critical in determining the success of these interventions and the patient's overall recovery trajectory.

Section 2

As the healthcare team continues to monitor the patient, a change in patient status is observed during the morning assessment. The patient reports increased tenderness around the ostomy site and a slight increase in abdominal pain. Vital signs reveal a low-grade fever of 100.8°F, blood pressure elevated at 150/92 mmHg, and a heart rate of 104 beats per minute, indicating a systemic response to the infection. The patient's blood glucose level is noted to be 210 mg/dL, suggesting suboptimal glycemic control, which could further impede wound healing. The wound site exhibits increased erythema and edema, and the volume of purulent drainage has notably increased, raising concerns about the effectiveness of the current antibiotic regimen.

Laboratory results show that despite the initiation of vancomycin, the patient’s white blood cell count remains elevated at 13,800/mm³, and CRP levels have increased to 28 mg/L, suggesting that the infection is persisting. Given these findings, the healthcare team considers the possibility of antibiotic resistance or inadequate tissue penetration and deliberates whether to adjust the antibiotic therapy. The presence of a fluid collection adjacent to the ostomy, as seen on the ultrasound, has not diminished, necessitating a discussion about potential surgical drainage.

The team recognizes the need to act swiftly to prevent further complications. A multidisciplinary meeting is convened to discuss the next steps, including consulting with an infectious disease specialist to reassess the antibiotic strategy and a surgeon to evaluate the need for potential drainage of the abscess. Additionally, an endocrinology consult is requested to optimize diabetes management, aiming to bring the patient's blood glucose levels within a target range. This comprehensive approach focuses on controlling the infection and supporting the patient’s overall recovery, with the next few days being crucial in evaluating the effectiveness of these interventions.

Section 3

As the healthcare team reconvenes to assess the latest developments, the patient’s condition presents new diagnostic results that provide further insight into the ongoing complications. A comprehensive metabolic panel reveals a slight elevation in liver enzymes, with AST and ALT levels at 75 U/L and 82 U/L, respectively, indicating potential liver stress. Given the patient's current medication regimen, this finding prompts the team to consider potential hepatotoxicity as a contributing factor. Meanwhile, a repeat culture of the purulent drainage is conducted, and preliminary results suggest the growth of a resistant strain of bacteria, raising concerns about the efficacy of the current vancomycin treatment.

Additionally, imaging studies, including a CT scan of the abdomen, reveal an increase in the size of the fluid collection adjacent to the ostomy, now measuring 5 cm in diameter. This finding corroborates the earlier ultrasound results and underscores the need for potential surgical intervention. The patient also reports a new symptom of nausea, which, combined with the imaging results, suggests a possible extension of the infection or secondary complication such as bowel involvement.

These diagnostic updates prompt the team to prioritize a consultation with the infectious disease specialist to reassess antibiotic therapy, potentially introducing a broader-spectrum antibiotic or combination treatment to address the resistant bacterial strain. Concurrently, the surgical team is called upon to evaluate the need for percutaneous or open drainage of the abscess to prevent further systemic spread of infection. The endocrinology team continues to work on stabilizing the patient's blood glucose levels, aiming to enhance the body's immune response and facilitate healing. This multidisciplinary approach seeks to address the evolving challenges and prevent further deterioration of the patient's condition, with careful monitoring over the next 24 to 48 hours being critical to assess the effectiveness of these interventions and adjust the care plan accordingly.

Section 4

Following the initial interventions, the healthcare team closely monitors the patient's response, emphasizing the need to control the infection and assess liver function. Over the next 24 hours, the patient's vital signs show marginal improvement; however, there are still areas of concern. The patient's temperature remains elevated at 38.5°C (101.3°F), and while the heart rate has decreased slightly to 96 beats per minute, it remains tachycardic, indicating ongoing systemic stress. Blood pressure is stable at 118/76 mmHg, but the patient's respiratory rate has increased to 22 breaths per minute, suggesting possible discomfort or distress.

Laboratory results from the recent comprehensive metabolic panel continue to show elevated liver enzymes with AST and ALT now at 80 U/L and 88 U/L, respectively, raising further suspicion of hepatotoxicity. Despite the introduction of a broader-spectrum antibiotic regimen, the white blood cell count is persistently elevated at 14,500 cells/μL, reflecting the body's ongoing inflammatory response. The recent culture identifies the resistant strain as Methicillin-resistant Staphylococcus aureus (MRSA), necessitating a revision of antibiotic therapy to include linezolid or daptomycin, in consultation with the infectious disease specialist.

Clinically, the patient reports increased abdominal pain localized around the ostomy site, with newly developed erythema and warmth extending several centimeters beyond the ostomy. This change in status suggests an exacerbation of the underlying infection, prompting the surgical team to expedite plans for percutaneous drainage of the abscess. This intervention aims to alleviate pressure, reduce the risk of further systemic infection, and improve patient comfort. The team prepares for this procedure with the expectation that it will contribute significantly to the patient's recovery, complemented by ongoing antibiotic adjustments and supportive care to optimize liver function and manage glucose levels effectively.

Section 5

Following the percutaneous drainage procedure, the healthcare team continues to monitor the patient closely for any signs of improvement or further complications. Despite the initial hopes that the drainage would relieve pressure and help control the infection, the patient's condition exhibits new concerns. Over the next 12 hours, the patient's abdominal pain persists, and the erythema around the ostomy site has not diminished as expected. The patient's temperature remains elevated at 38.2°C (100.8°F), with the heart rate climbing slightly back to 102 beats per minute, suggesting that the infection might still be progressing or that there is another underlying issue contributing to the symptoms.

The follow-up imaging, including an abdominal ultrasound, reveals a small residual collection near the ostomy site that was not fully addressed by the percutaneous drainage. This finding indicates the need for potential surgical intervention if the abscess does not resolve with conservative measures. Additionally, new laboratory results show a slight increase in bilirubin levels, now at 2.5 mg/dL, indicating a potential worsening of liver function, which may complicate the management of the infection. The patient's albumin level has decreased to 2.8 g/dL, suggesting nutritional and systemic stress, which could further impair the healing process.

The team decides to adjust the antibiotic regimen based on susceptibility testing and emphasizes the importance of nutritional support to enhance recovery. Consulting with a nutritionist, they introduce a high-protein, low-fat diet to support liver function and improve the patient's overall nutritional status. The focus shifts to a multidisciplinary approach involving infectious disease specialists, surgeons, and dietitians to address the multifaceted needs of the patient. This collaborative effort aims to stabilize the patient, prevent further complications, and promote healing, with plans to re-evaluate the need for surgical intervention if there is no significant improvement in the next 24-48 hours.