Flood Syndrome in Decompensated Cirrhosis: Emergency Umbilical Hernia Repair
Case 9/8/2025:Tóm tắt:
bệnh nhân nam, 37 tuổi, tiền sử xơ gan Child-Pugh C do viêm gan siêu vi B,
mới phát hiện 2 tháng do báng bụng và vàng da. Trước nhập viện 1 ngày, khi đi
tiêu, bệnh nhân xuất hiện chảy dịch vàng trong lượng nhiều qua rốn, không
kèm đau bụng. Khám lúc nhập viện: sinh hiệu ổn, bụng mềm, thoát vị rốn
có điểm hoại tử, rỉ ít mủ và dịch vàng trong.
Xét nghiệm:
Creatinine 164 μmol/L.
CT scan: Xơ gan, tuần hoàn bàng
hệ (+). Thoát vị rốn kích thước 28x26mm, cổ túi thoát vị 14mm, tạng thoát vị
gồm mạc nối và dịch. Dịch tự do ổ bụng trung bình. Chẩn đoán lúc vào viện: Thoát vị rốn - Báng bụng lượng nhiều trên nền xơ gan Child C do viêm gan siêu vi B mạn, theo dõi suy thận cấp trước thận Phẫu thuật: Mổ cấp cứu khâu tái tạo rốn. - Da vùng rốn hoại tử, tạo đường rò với túi thoát vị,
chảy dịch vàng trong Câu hỏi: 1. Những dấu hiệu lâm sàng và cận lâm sàng nào giúp xác định Flood syndrome ở bệnh nhân xơ gan Child C? 2. Ở bệnh nhân báng bụng không kiểm soát, dựa vào tiêu chí nào để lựa chọn mổ khẩn cấp hay trì hoãn, đồng thời cân nhắc thời điểm phù hợp? 3. Trong trường hợp đang thoát dịch nhiều, nên lựa chọn kỹ thuật đóng và xử lý mô thế nào để hạn chế chảy máu, nhiễm trùng và tái phát? 4. Các biện pháp hậu phẫu nào giúp kiểm soát báng bụng, phòng ngừa nhiễm trùng vết mổ và giảm nguy cơ tái phát? |
I. CLINICAL DIAGNOSIS AND
DIFFERENTIAL OF FLOOD SYNDROME IN CHILD C CIRRHOSIS
Flood
syndrome is defined as the spontaneous rupture of
an umbilical hernia with active leakage of ascitic fluid in a patient with
cirrhosis and ascites, in the absence of bowel evisceration. The diagnosis
is clinical and is established by the presence of advanced cirrhosis
(Child-Pugh C), significant ascites, an umbilical hernia with a
visible defect, and the acute onset of clear or straw-colored fluid
extravasation from the hernia site. The absence of trauma, iatrogenic
injury, or bowel exposure is essential to distinguish Flood syndrome from other
causes of hernia leakage. The most common differential diagnoses
include traumatic or iatrogenic rupture, local skin infection or abscess,
spontaneous bacterial peritonitis (SBP) presenting with hernia leakage, hernia
incarceration or strangulation, enterocutaneous fistula, urachal cyst rupture,
and necrotizing soft tissue infection. However, in the context of
decompensated cirrhosis with ascites and spontaneous leakage of clear fluid
from the hernia site, Flood syndrome is by far the most likely diagnosis and is
associated with high morbidity and mortality, with reported rates
exceeding 30% in advanced cases.[1-5]
The pathophysiology of Flood syndrome is rooted in severe portal hypertension and refractory ascites, which increase intra-abdominal pressure and weaken the abdominal wall, leading to hernia formation and eventual rupture. Risk factors include poorly controlled ascites, repeated large-volume paracentesis, malnutrition, and local trauma.[1-2][6-7] The clinical implications are profound, as the sudden loss of large volumes of ascitic fluid can precipitate hypovolemic shock, acute kidney injury, and secondary bacterial peritonitis due to the open communication between the peritoneal cavity and the external environment.[3-5]
II. INDICATIONS, TIMING, AND RISK ASSESSMENT FOR SURGICAL
REPAIR
1. Emergency Versus Elective Repair:
Evidence-Based Indications
The
American Association for the Study of Liver Diseases (AASLD) and recent
high-quality studies consistently recommend urgent surgical repair for
leaking umbilical hernias in cirrhotic patients, even in the absence of
bowel evisceration. Nonoperative management is associated with high
rates of progression to emergency surgery, increased morbidity, and
mortality rates up to 67% at one year.[4][8] In
contrast, patients who undergo urgent surgical repair during the index
admission have significantly lower one-year mortality (21%) and
recurrence rates (0%) compared to those managed nonoperatively or with delayed
surgery.[4] Emergency
repair is indicated in all cases of Flood syndrome due to the risk of
ongoing fluid loss, infection, and further decompensation.[2][4-5][8-9]
Elective
repair is preferable in patients with symptomatic
hernias and controlled ascites, and is associated with markedly lower
perioperative mortality (1.1–3.5% at 90 days) compared to emergency repair
(15–17% at 90 days).[8][10-11] Elective
repair should be considered in patients with tolerable hepatic
functional reserve (MELD-Na <21, Child-Pugh A or B) or when the expected
time to liver transplantation is greater than three months.[7][12-13] If
transplantation is imminent, hernia repair should be deferred and performed
concurrently with the transplant procedure.[2][7][12][14-16]
2. Preoperative Risk Assessment and
Optimization
Risk
stratification should be performed
using the Child-Pugh and MELD scores, with Child C (score 10–15) and MELD
>14–15 indicating extremely high perioperative risk.[8][17-21] The
Mayo Clinic Post-operative Mortality Risk in Patients with Cirrhosis calculator
and the VOCAL-Penn score provide improved prognostic accuracy and should be
used when available.[19-21] Preoperative
optimization includes aggressive control of ascites (sodium restriction
<2 g/day, diuretics, therapeutic paracentesis), nutritional support
(adequate protein and caloric intake), correction of coagulopathy only if
bleeding or invasive procedures are planned, infection prophylaxis, and
multidisciplinary management involving hepatology, surgery, anesthesia, and
nutrition.[2][8][12][22]
In
patients with refractory ascites, preoperative transjugular intrahepatic
portosystemic shunt (TIPS) may be considered to reduce portal hypertension and
ascites, though this is rarely feasible in the emergency setting.[2][12][23-24] If
the patient is a transplant candidate, coordination with the transplant team is
essential, and hernia repair may be deferred to the time of transplantation if
possible.[2][7][12][14-16]
III. INTRAOPERATIVE AND ANESTHESIA CONSIDERATIONS
1. Physiological and Anatomical
Challenges
The
intraoperative management of umbilical hernia in Child C cirrhosis is complicated
by refractory ascites, portal hypertension, coagulopathy,
and poor tissue quality. Ascites increases the risk of
persistent leakage, infection, and recurrence, while portal
hypertension and a recanalized umbilical vein increase the risk of
intraoperative bleeding.[2][8][12] Coagulopathy
and thrombocytopenia are common and require readiness for transfusion of
blood products as needed, but routine correction is not recommended unless
there is active bleeding.[2][8][12][25-26] The
abdominal wall is often thinned and friable, necessitating gentle
tissue handling and tension-free closure.[2][8][12]
2. Surgical Technique
Open
repair is universally preferred in the
emergency setting of Flood syndrome, as it allows direct control of the
defect, management of contaminated or necrotic tissue, and immediate
closure.[2][4-5][7][9][12] Primary
closure should be performed using non-absorbable, interrupted sutures
(e.g., Nylon), as this technique is associated with lower rates of dehiscence
and recurrence compared to absorbable sutures.[5] Mesh
repair is generally avoided in the presence of active ascitic leakage
due to the high risk of infection, but may be considered in elective cases with
well-controlled ascites.[7][12][27-28] Intraoperative
management of ascites may include large-volume paracentesis to decompress
the abdomen, with care to avoid rapid shifts in intravascular volume.[2][8][12] The
recanalized umbilical vein should be identified and ligated to
prevent hemorrhage.[8][12]
3. Anesthesia and Intraoperative
Monitoring
General
anesthesia with short-acting, minimally hepatotoxic agents is
recommended. Propofol is preferred for induction, and sevoflurane or
desflurane for maintenance. Opioids such as fentanyl, sufentanil, or
remifentanil are preferred due to minimal hepatic metabolism, and
cisatracurium is the muscle relaxant of choice due to Hofmann elimination.[25-26] Regional
anesthesia is generally avoided due to coagulopathy, but ultrasound-guided
bilateral rectus sheath block (RSB) is a valuable adjunct for intraoperative
anesthesia and postoperative analgesia, reducing opioid requirements and
hemodynamic instability.[29] Invasive
arterial blood pressure monitoring and central venous access are recommended
for real-time assessment and management of hemodynamic
instability. Frequent laboratory monitoring of arterial blood gases,
electrolytes, glucose, and coagulation parameters is essential.[25-26][29]
IV. POSTOPERATIVE CARE, COMPLICATIONS, AND RECURRENCE
PREVENTION
1. Postoperative Complications and
Management
Patients
with Child C cirrhosis are at high risk for postoperative complications,
including persistent or worsening ascites, wound infection and dehiscence,
hepatic decompensation, spontaneous bacterial peritonitis, bleeding, renal
dysfunction, hernia recurrence, venous thromboembolism, and malnutrition.[2][8][12][23][30] Aggressive
ascites control is paramount, with sodium restriction, diuretics, and
therapeutic paracentesis as needed. In refractory cases, TIPS may be
considered to reduce portal hypertension and ascites formation.[2][8][12][23-24] Meticulous
wound care and infection prophylaxis are essential, with early
identification and management of wound complications. Close monitoring
of hepatic and renal function, early treatment of encephalopathy and
hepatorenal syndrome, and nutritional support are critical for
recovery.[2][8][12][23][30]
2. Prevention and Management of
Hernia Recurrence
Recurrence
rates are higher in cirrhotic patients, especially if ascites remains
uncontrolled. The most effective strategies for prevention are aggressive
ascites control, nutritional optimization, and careful selection
of surgical technique. Elective repair with mesh may reduce
recurrence in well-selected patients with controlled ascites, but primary
repair is preferred in emergency or contaminated cases.[7][12][27-28][31] Multidisciplinary
care and referral to specialized centers are essential for optimal
outcomes. In cases of recurrence, re-optimization of ascites and
consideration of TIPS or adjunctive measures are recommended prior to
reoperation.[2][8][12][24]
V. SUMMARY AND ACTIONABLE RECOMMENDATIONS
In
summary, this patient with Child C cirrhosis and a leaking umbilical hernia
(Flood syndrome) requires urgent surgical repair due to the high risk of
ongoing fluid loss, infection, and further decompensation. The diagnosis
is clinical, based on the presence of advanced cirrhosis, ascites, and
spontaneous leakage of clear fluid from the hernia site without bowel
exposure. Preoperative risk assessment should include calculation of
Child-Pugh and MELD scores, with additional use of the Mayo Clinic and VOCAL-Penn
calculators if available. Preoperative optimization should focus on
aggressive ascites control, nutritional support, infection prophylaxis, and
multidisciplinary management. Intraoperatively, open repair with
non-absorbable interrupted sutures is recommended, with avoidance of mesh
unless the field is clean and ascites is controlled. Anesthesia should be
managed with short-acting, minimally hepatotoxic agents, and adjunctive rectus
sheath block for analgesia. Postoperative care should prioritize ascites
management, wound care, infection prevention, and nutritional support.
