Imaging in laparoscopic cholecystectomy--what a radiologist needs to know

Do not get stumped: multimodality imaging findings of early and late post-cholecystectomy complications

Cholecystectomy is the most performed intra-abdominal surgical procedure in the US, with 1.2 million performed annually, and is predominantly performed laparoscopically. Although largely safe, laparoscopic cholecystectomy results in higher rates of abdominal symptoms consisting of abdominal pain and dyspepsia, which may persist or recur, collectively known as post-cholecystectomy syndrome. This article aims to (1) provide an overview of post-cholecystectomy syndrome with an emphasis on biliary complications and emergent imaging findings, (2) illustrate the spectrum of imaging findings of early and late post-cholecystectomy complications, (3) enumerate the role of various imaging modalities in evaluating post-cholecystectomy complications and address the role of selective trans-catheter coil embolization in managing bile leaks, and (4) discuss pearls and pitfalls in imaging following cholecystectomy. While common first-line imaging modalities for post-cholecystectomy complications include CT and sonography, ERCP and MRCP can delineate the biliary tree with greater detail. Scintigraphy has a higher sensitivity and specificity than CT or sonography for diagnosing bile leak and may preclude the need for ERCP. Post-operative complications include biliary duct injury or leak, biliary obstruction, remnant gallbladder/cystic duct stones and inflammation, biliary dyskinesia, papillary stenosis, and vascular injury. Subtle cases resulting in lethal outcomes, such as hemorrhage from the gallbladder bed without major vessel injury, have also been described. Cases presented will include biliary complications such as post-cholecystectomy stump cholecystitis, nonbiliary complications such as subcapsular hematoma, and normal post-surgical findings such as oxidized regenerated cellulose. Post-operative biliary complications can cause significant morbidity and mortality, and thus familiarity with the expected post-surgical appearance of the gallbladder fossa and biliary tract, as well as understanding the spectrum of complications and associated multimodality imaging findings, are essential for emergency radiologists and those practicing in the acute care setting to direct appropriate patient management. Furthermore, many of the postoperative complications can be managed by noninvasive percutaneous interventional procedures, from drain placement to cystic artery and cystic duct stump embolization.

Multimodality Imaging of Cholecystectomy Complications

Cholecystectomy is one of the most common surgeries performed in the United States. Although complications are uncommon, the high incidence of this surgery means that a radiologist will likely encounter these complications in practice. Complications may arise in the immediate postoperative period or can be delayed for weeks, months, or years after surgery. Vague and nonspecific symptoms make clinical diagnosis challenging. As a result, multimodality imaging is important in postoperative evaluation. US and multidetector CT are the usual first-line imaging modalities. Hepatobiliary scintigraphy, SPECT/CT, and MRI with conventional or gadoxetate hepatobiliary contrast material are important and complementary modalities that are used for workup. The authors begin with a brief discussion of surgical technique and expected postoperative findings and then describe complications organized into four groups: (a) biliary complications, (b) stone-related complications, (c) iatrogenic complications, and (d) gallbladder complications. Biliary complications include bile leaks and bilomas, acute biliary obstruction, and biliary stricture. Stone-related complications include retained and recurrent stones and spillage of stones into the peritoneum. Iatrogenic complications include hemorrhage, vasculobiliary injury, arterial pseudoaneurysms, duodenal injury, and migration of clips. Gallbladder complications include recurrent cholecystitis after subtotal reconstituting cholecystectomy and unexpected gallbladder cancer. An invited commentary by Mullens and Ibrahim is available online. Online supplemental material is available for this article. ^©RSNA, 2022.

Review of imaging in post-laparoscopy cholecystectomy complications

Laparoscopic cholecystectomy is now considered the procedure of choice for uncomplicated symptomatic gallstone disease worldwide. Various biliary, vascular, gastrointestinal, neurological and local complications may be seen on imaging post surgery. Knowledge of these entities and imaging appearances is indispensable for the radiologist in today's era. We emphasize on the list of potential complications and imaging appearances of this surgical procedure.

MRI evaluation of bile duct injuries and other post-cholecystectomy complications

Laparoscopic cholecystectomy is one of the most common procedures performed each year and can be associated with various post-operative complications. Imaging is integral to diagnosis and management of patients with suspected cholecystectomy complications, and a thorough understanding of normal and abnormal biliary anatomy, risk factors for biliary injury, and the spectrum of adverse events is crucial for interpretation of imaging studies. Magnetic resonance cholangiography (MRC) enhanced with hepatobiliary contrast agent is useful in delineating biliary anatomy and pathology following cholecystectomy. In this article, we provide a protocol for contrast-enhanced MR imaging of the biliary tree. We also review the classification and imaging manifestations of post-cholecystectomy bile duct injuries in addition to other complications such as bilomas, retained/dropped gallstones, and vascular injuries.

Effects of Internet plus telephone follow-up nursing in patients after cholecystectomy

AIM

To evaluate the effects of Internet plus telephone follow-up nursing in patients after cholecystectomy.

METHODS

Ninety-eight patients with cholecystolithiasis who underwent cholecystectomy from January 2014 to January 2017 at our hospital were randomly divided into either an observation group (49 cases) to receive Internet plus telephone follow-up nursing, or a control group (49 cases) to receive telephone follow-up nursing. The patients were followed for 3 mo. The nursing satisfaction scale, Self-rating Anxiety Scale (SAS), Self-rating Depression Scale and the quality of life scale (SF-36) were used to assess and compare the satisfaction to nursing care, anxiety, depression and quality in the two groups, respectively.

RESULTS

After 3 mo of nursing, the satisfaction to nursing, SAS and SDS scores were significantly better in the observation group than in the control group (76.22 ± 7.98 vs 65.43 ± 10.74, 35.13 ± 5.12 vs 44.64 ± 6.71, 32.05 ± 4.54 vs 40.21 ± 5.78, P < 0.05). The scores of physiological function, physiological role and social function were significantly higher in the observation group than in the control group (83.12 ± 9.01 vs 70.19 ± 8.21, 85.08 ± 7.46 vs 77.16 ± 7.91, 88.62 ± 9.52 vs 80.32 ± 9.65, P < 0.05). The rate of complications in the observation group was significantly lower than that of the control group (6.12% vs 16.33%, P < 0.05).

CONCLUSION

Internet plus telephone follow-up nursing can improve patients' anxiety, depression, and quality of life, and is conducive to the rehabilitation of the disease.