The trial was withdrawn before participant enrollment; no subjects were recruited and no data were collected.

This single-center randomized controlled trial compares the effects of precision nursing and conventional care in patients undergoing laparoscopic colorectal cancer surgery.

Precision nursing includes personalized preoperative psychological counseling, intraoperative body temperature and position management, and postoperative targeted recovery guidance. Conventional care follows routine clinical nursing procedures.

The study will assess differences in perioperative outcomes (such as anxiety, intraoperative hypothermia, postoperative nausea and vomiting, recovery time, and hospital stay) between the two groups, to provide evidence for optimizing nursing strategies for colorectal cancer surgery patients.

Study Background: Laparoscopic colorectal cancer surgery is a common treatment, but perioperative complications (e.g., hypothermia, nausea) and anxiety affect patient recovery. Precision nursing may improve these outcomes, but evidence from RCTs is limited.

Study Design: A parallel-group randomized controlled trial. 90 eligible patients are randomly assigned (1:1) to the precision nursing group or conventional care group.

Interventions:

Precision Nursing Group:

1. Preoperative: 30-minute personalized psychological counseling + music therapy;
2. Intraoperative: Real-time body temperature monitoring (maintaining ≥36°C) + dynamic position optimization;
3. Postoperative: Individualized recovery guidance (early ambulation, dietary adjustment) based on patient condition.

Conventional Care Group: Routine clinical nursing (preoperative health education, intraoperative basic monitoring, postoperative standard care).

Outcome Measures:

Primary: Preoperative anxiety score (SAQ), intraoperative hypothermia rate, postoperative nausea and vomiting (PONV) incidence, time to first flatus, length of hospital stay; Secondary: Postoperative complication rate, nursing satisfaction score.

Statistical Analysis: Data are analyzed using SPSS 26.0. Continuous variables are compared with t-tests, categorical variables with chi-square tests. A p-value <0.05 is considered statistically significant.

Inclusion Criteria:

• Patients diagnosed with colorectal cancer and scheduled for laparoscopic surgery.
• Age 18 to 80 years old.
• Able to understand and complete the study questionnaires.
• Voluntarily agree to participate in this study and sign the informed consent form.

Exclusion Criteria:

• Severe cognitive impairment or mental illness.
• Emergency surgery patients.
• Severe cardiopulmonary, hepatic, or renal dysfunction.
• Patients who cannot cooperate with perioperative nursing interventions.
• Participation in other clinical trials that may affect this study.