Related Experiment Video
Updated: Feb 3, 2026

09:51
Laparoscopic Anterior Right Hepatectomy: A Single-Center Experience
Published on: December 4, 2023
1.7K
Comprehensive Complication Index Validates Improved Outcomes Over Time Despite Increased Complexity in 3707
Jordan M Cloyd1, Takashi Mizuno1, Yoshikuni Kawaguchi1
1Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX.
Annals of Surgery
|October 20, 2018
Summary
Perioperative care and surgical techniques for hepatectomy have improved, leading to better outcomes. Despite increased complexity, the most recent era showed a decrease in complications and mortality.
Area of Science:
- Hepatobiliary surgery
- Surgical outcomes research
- Medical technology assessment
Background:
- Hepatectomy indications and complexity have evolved due to advancements in perioperative care and surgical techniques.
- The impact of these advancements on short-term perioperative outcomes over time requires detailed evaluation.
Purpose of the Study:
- To analyze trends in perioperative outcomes for patients undergoing hepatectomy over an 18-year period.
- To compare outcomes across different eras of hepatectomy to identify improvements.
Main Methods:
- A retrospective analysis of 3707 consecutive hepatectomies performed between 1998 and 2015.
- Comparison of perioperative outcomes, including the Comprehensive Complication Index (CCI), across three eras: 1998-2003, 2004-2009, and 2010-2015.
Main Results:
- Hepatectomy complexity increased, with higher rates of major hepatectomy, 2-stage hepatectomy, and portal vein embolization.
- Significant reductions observed in median blood loss, transfusion rates, length of hospitalization, and 90-day mortality.
- The most recent era (2010-2015) was associated with a lower incidence of severe complications (CCI ≥26.2).
Conclusions:
- Despite increased surgical complexity, advancements in perioperative care and surgical techniques have led to improved outcomes.
- The most current era of hepatectomy demonstrates a significant decrease in complication rates and mortality.
Related Concept Videos
Reliability and Validity
13.9K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
13.9K
Hemodialysis II: Procedure and Complications
821
DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
821
Predicting Reaction Outcomes
10.8K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
10.8K
Increasing Function
394
An increasing function exhibits a rise in output values as input values increase. This behavior is depicted graphically as a curve or line that slopes upward from left to right. Such a function satisfies the condition that if x1 < x2, then f(x1) < f(x2), indicating that the function values grow with increasing inputs. This concept is fundamental in understanding growth trends across various domains, such as population dynamics, financial investments, or resource consumption.The...
394
Outcomes of Glycolysis
107.2K
Nearly all the energy used by cells comes from the bonds that make up complex organic compounds. These organic compounds are broken down into simpler molecules, such as glucose. As a result, cells extract energy from glucose over many chemical reactions—a process called cellular respiration.
Cellular respiration can occur aerobically (with oxygen) or anaerobically (without oxygen). In the presence of oxygen, cellular respiration starts with glycolysis and continues with pyruvate...
Cellular respiration can occur aerobically (with oxygen) or anaerobically (without oxygen). In the presence of oxygen, cellular respiration starts with glycolysis and continues with pyruvate...
107.2K
Pneumonia III: Complications and Assessment
861
Pneumonia poses the potential for numerous complications that warrant consideration. These complications include the following:
861

