Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Classifying Matter by State02:49

Classifying Matter by State

103.4K
Chemistry is the study of matter and the changes it undergoes. Matter is anything that has mass and occupies space. Matter is all around us; the air, water, soil, mountains, even our bodies are all examples of matter. Matter is divided into three states — solid, liquid, and gas — that are commonly found on earth. The fourth state of matter, plasma, occurs naturally in the interiors of stars. 
103.4K
Classifying Matter by Composition03:35

Classifying Matter by Composition

90.4K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures. 
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated. 
A mixture is composed of two or...
90.4K
Physical and Chemical Properties of Matter02:57

Physical and Chemical Properties of Matter

166.4K
The characteristics that enable us to distinguish one substance from another are called properties.
166.4K
What is Matter?01:13

What is Matter?

58.2K
The substance of the universe—from a grain of sand to a star—is called matter. Scientists define matter as anything that occupies space and has mass. An object’s mass and its weight are related concepts, but not quite the same. An object’s mass is the amount of matter contained in the object and is the same whether that object is on Earth or in the zero-gravity environment of outer space. An object’s weight, on the other hand, is its mass as affected by the pull of...
58.2K
The Atomic Theory of Matter02:59

The Atomic Theory of Matter

128.0K
The earliest recorded discussion of the basic structure of matter comes from ancient Greek philosophers. Leucippus and Democritus argued that all matter was composed of small, finite particles that they called atomos, meaning “indivisible.” Later, Aristotle and others came to the conclusion that matter consisted of various combinations of the four “elements” — fire, earth, air, and water — and could be infinitely divided. Interestingly, these philosophers...
128.0K
States of Matter01:20

States of Matter

2.9K
Solids, liquids, and gases are the three states of matter commonly found on Earth. A solid is rigid and possesses a definite shape. A liquid flows and takes the shape of its container, except it forms a flat or slightly curved upper surface when acted upon by gravity. Both liquid and solid samples have volumes nearly independent of pressure. A gas takes both the shape and volume of its container.
Scientists have discovered a fourth state of matter, plasma, that occurs naturally in the interiors...
2.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Pure open versus robotic radical cystectomy with intracorporeal urinary diversion: a propensity matched analysis.

World journal of urology·2024
Same author

Editorial Commentary.

Urology practice·2023
Same author

Editorial Commentary.

Urology practice·2023
Same author

Temperature-induced embryonic diapause in chickens is mediated by PKC-NF-κB-IRF1 signaling.

BMC biology·2023
Same author

Analysis of genetic diversity and selection signals in Chaling cattle of southern China using whole-genome scan.

Animal genetics·2023
Same author

Transvesical Percutaneous Access Allows for Epidural Anesthesia Without Mechanical Ventilation in Single-Port Robotic Radical and Simple Prostatectomy.

Urology·2023

Related Experiment Video

Updated: Feb 3, 2026

Principles of Rodent Surgery for the New Surgeon
10:29

Principles of Rodent Surgery for the New Surgeon

Published on: January 6, 2011

117.3K

Variability in Partial Nephrectomy Outcomes: Does Your Surgeon Matter?

Julien Dagenais1, Riccardo Bertolo1, Juan Garisto1

  • 1Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.

European Urology
|November 7, 2018
PubMed
Summary
This summary is machine-generated.

Surgeon skill significantly impacts partial nephrectomy (PN) outcomes, affecting operative time, complications, and readmissions. Patient factors explain most variability in tissue removed, but surgeon factors are crucial for other key results.

Keywords:
ComplicationsNephron sparingOutcomesPartial nephrectomyRenal neoplasmSurgeon

More Related Videos

A Mouse 5/6th Nephrectomy Model That Induces Experimental Uremic Cardiomyopathy
07:52

A Mouse 5/6th Nephrectomy Model That Induces Experimental Uremic Cardiomyopathy

Published on: November 7, 2017

22.1K
Single Port Donor Nephrectomy
07:17

Single Port Donor Nephrectomy

Published on: March 12, 2011

52.4K

Related Experiment Videos

Last Updated: Feb 3, 2026

Principles of Rodent Surgery for the New Surgeon
10:29

Principles of Rodent Surgery for the New Surgeon

Published on: January 6, 2011

117.3K
A Mouse 5/6th Nephrectomy Model That Induces Experimental Uremic Cardiomyopathy
07:52

A Mouse 5/6th Nephrectomy Model That Induces Experimental Uremic Cardiomyopathy

Published on: November 7, 2017

22.1K
Single Port Donor Nephrectomy
07:17

Single Port Donor Nephrectomy

Published on: March 12, 2011

52.4K

Area of Science:

  • Urology
  • Surgical Outcomes Research
  • Health Services Research

Background:

  • Physician-level variations in healthcare delivery are a focus of quality improvement initiatives.
  • Understanding factors contributing to outcome disparities is essential for healthcare reform.

Purpose of the Study:

  • To quantify the impact of patient versus surgeon characteristics on outcomes following partial nephrectomy (PN).
  • To identify areas where surgeon variability influences patient results after PN.

Main Methods:

  • Retrospective analysis of 1461 partial nephrectomy (PN) cases performed by 19 surgeons.
  • Hierarchical regression models assessed variability in peri- and postoperative outcomes attributed to patient and surgeon factors.
  • Quantified both measurable and immeasurable surgeon-specific contributions to outcome variability.

Main Results:

  • Significant between-surgeon variability was observed in operative time, blood loss, ischemia time, positive margins, complications, and readmission rates.
  • Patient factors explained most variability (82%) in tissue removed, but surgeon factors accounted for 18-100% of variability in other outcomes.
  • Renal functional outcomes (CKD upstaging, GFR preservation) showed minimal between-surgeon variability.

Conclusions:

  • Substantial surgeon-specific variability exists in PN outcomes, independent of patient characteristics.
  • Surgeon factors significantly influence intraoperative and postoperative results, highlighting the need for standardized surgical practices.
  • Addressing surgeon variability is critical for advancing value-based care and optimizing patient outcomes in partial nephrectomy.