Functional and Respiratory Predictors of Early Postoperative Outcomes

The Effect of Functional Status and Respiratory Parameters on Early Postoperative Clinical Outcomes in Patients With Colorectal Cancer

Functional status is a fundamental indicator reflecting a patient's ability to perform activities of daily living and is closely associated with early postoperative outcomes. Patients with low functional capacity are known to have an increased risk of postoperative complications, prolonged length of hospital stay, and higher mortality rates. Similarly, respiratory function plays a decisive role in the development of postoperative complications and influences early surgical outcomes. In the preoperative period, inadequate respiratory capacity and poor functional performance increase the risk of postoperative pulmonary complications and delayed recovery. Therefore, functional and respiratory assessments are regarded as integral components of the preoperative preparation process.

Early outcomes in patients undergoing colorectal cancer surgery are of critical importance in reducing mortality and morbidity. In this surgical population, advanced age, comorbidities, and diminished physical capacity may further increase the risk of postoperative complications. Accordingly, the evaluation of preoperative functional status and physiological reserve has gained increasing importance for risk stratification and perioperative management. However, studies examining the impact of functional status and respiratory parameters on early surgical outcomes in patients with colorectal cancer remain limited. Consequently, the available evidence is insufficient to establish a standardized assessment approach in clinical practice.

Moreover, objective evaluation of patients' functional and respiratory capacities in the preoperative period is essential for predicting surgical risk and planning individualized perioperative care. Determining the relationships between these parameters and early clinical outcomes may facilitate the identification of high-risk patients and contribute to the development of targeted strategies aimed at preventing postoperative complications. Findings obtained in this context are expected to provide a scientific basis for clinical decision-making and multidisciplinary patient management in individuals undergoing colorectal cancer surgery, thereby guiding clinical practice.

Study Overview

• Status: Recruiting
• Conditions: Colorectal Cancer; Functional Status; Clinical Outcomes; Respiratory Parameters
• Intervention / Treatment: Other: Preoperative Assessments; Other: Postoperative Assessments (Daily from Postoperative Day 1 Until Discharge)

• Study Type: Observational
• Enrollment (Estimated): 42

Contacts and Locations

• Study Contact: Name: Müşerref Ebru YALÇIN; Phone Number: +90 555 713 6666; Email: M.ebrusen@gmail.com

Study Locations

• Turkey (Türkiye)
  • Malatya, Turkey (Türkiye)
    • Recruiting
    • İnönü University Turgut Özal Medical Center General Surgery Polyclinic
    • Contact: Egemen Çiçek

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

Individuals aged between 18 and 80 years who have undergone colorectal cancer surgery and who voluntarily agree to participate in the study will be included.

Description

Inclusion Criteria

Being between 18 and 80 years of age

Voluntary agreement to participate in the study

Exclusion Criteria

Withdrawal from the study at the participant's own request

Elimination Criteria

Presence of a musculoskeletal condition that may prevent completion of the planned assessments

Presence of a mental impairment

History of psychiatric disorder

History of previous major surgery

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Short Physical Performance Battery (SPPB)	Short Physical Performance Battery (SPPB): This scale is used to assess lower extremity physical performance. The total score ranges from 0 to 12, with higher scores indicating better physical performance.	1 year

Collaborators and Investigators

• Sponsor: Müşerref Ebru YALÇIN
• Collaborators: Inonu University

Publications and helpful links

General Publications

• van Rooijen S, Carli F, Dalton S, Thomas G, Bojesen R, Le Guen M, Barizien N, Awasthi R, Minnella E, Beijer S, Martinez-Palli G, van Lieshout R, Gogenur I, Feo C, Johansen C, Scheede-Bergdahl C, Roumen R, Schep G, Slooter G. Multimodal prehabilitation in colorectal cancer patients to improve functional capacity and reduce postoperative complications: the first international randomized controlled trial for multimodal prehabilitation. BMC Cancer. 2019 Jan 22;19(1):98. doi: 10.1186/s12885-018-5232-6.
• Mao JX, Gao R, Wang Y, Yan XB, Wang HH. Surgical treatment of colorectal cancer: A multidimensional review. World J Gastrointest Surg. 2025 Aug 27;17(8):107785. doi: 10.4240/wjgs.v17.i8.107785.
• Pickhardt PJ, Hassan C, Halligan S, Marmo R. Colorectal cancer: CT colonography and colonoscopy for detection--systematic review and meta-analysis. Radiology. 2011 May;259(2):393-405. doi: 10.1148/radiol.11101887. Epub 2011 Mar 17.
• Toma M, Belusica L, Stavarachi M, Apostol P, Spandole S, Radu I, Cimponeriu D. Rating the environmental and genetic risk factors for colorectal cancer. J Med Life. 2012 Oct-Dec;5(Spec Issue):152-159.
• Carr PR, Weigl K, Jansen L, Walter V, Erben V, Chang-Claude J, Brenner H, Hoffmeister M. Healthy Lifestyle Factors Associated With Lower Risk of Colorectal Cancer Irrespective of Genetic Risk. Gastroenterology. 2018 Dec;155(6):1805-1815.e5. doi: 10.1053/j.gastro.2018.08.044. Epub 2018 Sep 8.
• Tomruk M, Karadibak D, Yavuzsen T, Akman T. Predictors of functional capacity in colorectal cancer patients. Support Care Cancer. 2015 Sep;23(9):2747-54. doi: 10.1007/s00520-015-2639-3. Epub 2015 Feb 8.
• Whelan M, van Aswegen H, Roos R, Fabian J, Bebington B. Preoperative physical activity and functional performance levels are predictors of acute postoperative outcomes in a private South African colorectal cancer cohort. S Afr J Physiother. 2021 Aug 4;77(1):1526. doi: 10.4102/sajp.v77i1.1526. eCollection 2021.
• Mima K, Kosumi K, Miyanari N, Tajiri T, Kanemitsu K, Takematsu T, Inoue M, Mizumoto T, Kubota T, Baba H. Impairment of Activities of Daily Living is an Independent Risk Factor for Recurrence and Mortality Following Curative Resection of Stage I-III Colorectal Cancer. J Gastrointest Surg. 2021 Oct;25(10):2628-2636. doi: 10.1007/s11605-021-04990-7. Epub 2021 Apr 6.
• Overcash J. Assessing the Functional Status of Older Cancer Patients in an Ambulatory Care Visit. Healthcare (Basel). 2015 Sep 18;3(3):846-59. doi: 10.3390/healthcare3030846.

Study record dates

Study Major Dates

• Study Start (Actual): March 1, 2026
• Primary Completion (Estimated): August 25, 2026
• Study Completion (Estimated): February 25, 2027

Study Registration Dates

• First Submitted: March 4, 2026
• First Submitted That Met QC Criteria: April 9, 2026
• First Posted (Actual): April 14, 2026

Study Record Updates

• Last Update Posted (Actual): April 14, 2026
• Last Update Submitted That Met QC Criteria: April 9, 2026
• Last Verified: March 1, 2026

More Information

Terms related to this study

• Keywords: Colorectal Cancer; Functional Status; Respiratory Parameters; Clinical Outcomes
• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Intestinal Diseases; Gastrointestinal Neoplasms; Digestive System Neoplasms; Digestive System Diseases; Gastrointestinal Diseases; Intestinal Neoplasms; Rectal Diseases; Colonic Diseases; Colorectal Neoplasms
• Other Study ID Numbers: 2026/9168

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: The protection of patient data is of utmost importance to us.

Study Data/Documents

1. Individual Participant Data Set

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No