Related Experiment Video
Updated: Feb 5, 2026

A Mouse Model to Evaluate the Long-Term Structural and Functional Outcomes after the Reversal of Prolonged Unilateral Ureteric Obstruction
Published on: July 18, 2025
Long-term Quality of Life and Gastrointestinal Functional Outcomes After Pancreaticoduodenectomy
Casey J Allen1, Danny Yakoub, Francisco Igor Macedo
1Division of Surgical Oncology, Dewitt-Daughtry Department of Surgery, University of Miami Miller School of Medicine, Miami, FL.
Objective:
To perform a comprehensive assessment of long-term quality of life (QOL) and gastrointestinal (GI) function in patients following pancreaticoduodenectomy (PD).
Summary Of Background Data:
Survival after PD has greatly improved and thus has resulted in a larger population of survivors, yet long-term QOL and GI function after PD is largely unknown.
Methods:
Patients were identified from a global online support group. QOL was measured using the Short Form-36, while GI function was assessed using the Gastrointestinal Symptom Rating Scale. QOL and GI function were analyzed across subgroups based on time after PD. QOL was compared with preoperative measurements and with established values of a general healthy population (GHP). Multivariate linear regression was used to identify predictors of QOL.
Results:
Of the 7605 members of the online support group, 1102 responded to the questionnaire with 927 responders meeting inclusion criteria. Seven hundred seventeen (77.3%) of these responders underwent PD for malignancy. Mean age was 57 ± 12 years and 327 (35%) were male. At the time of survey, patients were 2.0 (0.7, 4.3) years out from surgery, with a maximum 30.7-year response following PD. Emotional and physical domains of QOL improved with time and surpassed preoperative levels between 6 months and 1 year after PD (both P < 0.001). Each GI symptom worsened over time (all P < 0.001). Independent predictors of general QOL in long-term survivors (> 5 years) included total GSRS score [β = -1.70 (-1.91, -1.50)], female sex [β = 3.58 (0.67, 6.46)], and being a cancer survivor [β = 3.93 (0.60, 7.25)].
Conclusions:
Long-term QOL following PD improves over time, however never approaches that of a GHP. GI dysfunction persists in long-term survivors and is an independent predictor of poor QOL. Long-term physical, psychosocial, and GI functional support after PD is encouraged.
Related Concept Videos
Functions of Life
Metabolism
The basic function of an organism is to consume energy and molecules in foods, convert some of it into fuel for movement, sustain body functions, and build and maintain body structures. There are two types of reactions that accomplish this: anabolism and catabolism.
Anabolism is the process whereby...
Half-life of a Reaction
Characteristics of Life
The Angiosperm Life Cycle
Long-term Depression
Anatomy of the Gastrointestinal System
Here's a detailed walkthrough of this complex system:

