Evaluation of gallbladder motility assessed by ultrasonography in dogs with hyperlipidemia

Abstract

Background The pathogenesis of gallbladder (GB) mucoceles in dogs is unknown. It has been proposed that hyperlipidemia could impair GB motility and contribute to GB mucocele formation. Hypothesis/Objectives The objective of this study was to compare GB motility in dogs with hyperlipidemia to control dogs using ultrasonography. We hypothesized that hyperlipidemic dogs will have decreased GB motility compared with controls. Animals Twenty‐six hyperlipidemic and 28 healthy, age‐matched control dogs were prospectively enrolled. Methods Cholesterol and triglyceride concentrations were measured in all dogs. Hyperlipidemia was defined as hypercholesterolemia (>332 mg/dL) and/or hypertriglyceridemia (>143 mg/dL) using a biochemical analyzer. Ultrasound was performed before feeding, and 60 and 120 minutes after ingestion of a high fat diet. Gallbladder volumes (GBV) and ejection fractions (EF) were calculated. Results Hyperlipidemic dogs had significantly larger GBVs (ml/kg) before feeding and 60 minutes after feeding of 1.2 (0.4‐7.5; P = .008) and 0.6 (0.1‐7.2; P = .04) compared with controls 0.6 (0.2‐2.6) and 0.4 (0.1‐1.9), respectively. Severely hyperlipidemic dogs had significantly larger GBV at baseline, 60 minutes, and 120 minutes of 1.7 (0.6‐7.5; P = .03), 1.3 (0.4‐7.2; P = .02), and 1.3 (0.2‐8.2; P = .04), respectively compared with mildly hyperlipidemic dogs. EFs at 60 and 120 minutes between controls, hyperlipidemic, and severely hyperlipidemic were all 0.3 at 60 minutes and 0.5, 0.3, and 0.3 at 120 minutes, respectively which were not statistically different. Conclusions and Clinical Importance Hyperlipidemia leads to GB distention in dogs which could lead to retention of bile and gallbladder disease.

How traditional Chinese medicine can prevent recurrence of common bile duct stones after endoscopic retrograde cholangiopancreatography?

“…It has been found that patients with Hypothyroidism are more likely to develop CBDS due to impaired biliary emptying, while patients with Hyperthyroidism are at greater risk of developing stones due to increased cholesterol reabsorption and the presence of more cholesterol in the bile composition ( Ravi et al, 2023 ). Studies have also found that dogs with hyperlipidemia are more likely to develop gallbladder and liver related diseases due to decreased gallbladder motility ( Villm et al, 2023 ). The body regulates the biliary system through humoral hormones and other cytokines, including cholecystokinin (CCK), which stimulates gallbladder contraction and bile secretion, as well as GLP-2 and FGF19, which promote gallbladder relaxation ( Choi et al, 2006 ; Yusta et al, 2017 ; Metry et al, 2023 ).…”