Post-Surgical Complications: Managing Rectal Abscess and Sepsis - Surgery

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Postoperative issues related to rectal abscess leading to sepsis?


Hello, doctor.
My mother underwent Da Vinci surgery for low rectal cancer about two years ago.
After a temporary colostomy, it was reversed, but she has been experiencing fecal incontinence since the surgery.
Recently, she developed rectal abscess leading to sepsis, and she currently has a temporary colostomy with a drain inserted to evacuate the pus.
However, it has been over two weeks, and there is still pus draining out, both from the drain and from the rectum.
I would like to know how long such an infection typically lasts.
The continuous presence of the drain is quite uncomfortable.
She is currently on antibiotic treatment; will she need surgical intervention for debridement?

Xiao Wei, 30~39 year old female. Ask Date: 2023/11/02

Dr. Zhang Shuhao reply Surgery


Postoperative rectal abscess in low rectal cancer requires exclusion of anastomotic leakage or local recurrence.
Emergency management includes the current colostomy along with abscess drainage, and arranging for a computed tomography scan and colonoscopy to check for recurrence.
If it is not a tumor recurrence, the infection will gradually resolve after thorough abscess drainage, and surgical debridement may not be necessary.

Reply Date: 2023/11/02

More Info


Post-surgical complications, particularly in the context of rectal abscesses and sepsis, can be quite complex and require careful management. Your mother’s history of low rectal cancer and subsequent surgeries, including temporary colostomy and drainage procedures, adds layers of complexity to her current situation.
Firstly, it’s important to understand that a rectal abscess is a localized infection that can occur in the anal or rectal area, often resulting from blocked glands or infections. When an abscess develops, it can lead to significant discomfort, and if not adequately addressed, it can progress to more severe infections, such as sepsis. Sepsis is a life-threatening condition that arises when the body’s response to an infection causes widespread inflammation, potentially leading to organ failure.

In your mother’s case, the persistent drainage of pus from both the drainage tube and the rectum indicates that the infection may not be fully resolved. The duration of such infections can vary significantly based on several factors, including the severity of the abscess, the presence of underlying conditions, and the effectiveness of the antibiotic treatment. Generally, with appropriate management, many abscesses can begin to resolve within a few weeks; however, some may take longer, especially if there are complications such as fistulas or if the infection is particularly aggressive.

The fact that your mother has been on antibiotics is a positive step, as these medications are crucial in controlling bacterial infections. However, if the drainage continues and there are signs of systemic infection (such as fever, chills, or increased heart rate), it may indicate that the antibiotics alone are insufficient. In such cases, surgical intervention may be necessary to drain the abscess adequately and remove any necrotic tissue that could be harboring bacteria.

Surgical options might include incision and drainage (I&D) of the abscess, which can be performed under local or general anesthesia, depending on the extent of the infection and the patient's overall health. This procedure aims to relieve pressure, remove pus, and promote healing. If a fistula has formed (an abnormal connection between the rectum and the skin or another organ), additional surgical procedures may be required to repair it.

In terms of managing discomfort from the drainage tube, it’s essential to maintain proper hygiene and care around the site to prevent further infection. Discussing pain management options with her healthcare provider can also help improve her comfort level during this challenging time.

It is crucial to maintain close communication with her healthcare team. Regular follow-ups are necessary to monitor her progress, assess the effectiveness of the treatment, and determine if further surgical intervention is needed. If you notice any worsening symptoms or new concerns, do not hesitate to seek immediate medical attention.

In summary, while the duration of infection can vary, persistent drainage and discomfort warrant further evaluation. Antibiotics are essential, but surgical intervention may be necessary if the abscess does not resolve. Close monitoring and communication with her healthcare team will be vital in managing her condition effectively.

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