The sample size of the study is relatively small,
Research gap analysis derived from 4 medicine papers in our local library.
The gap
The sample size of the study is relatively small, and intraoperative influencing factors have not been included in previous literature.
Evidence profile
Sourced from the limitations and inline gaps of the source papers, classified as data gap, spanning 4 journals.
Research trend
Established — well-defined area with open sub-problems.
Supporting evidence — 4 representative gaps
- Laryngeal mask airway versus endotracheal tube for preventing postoperative atelectasis after laparoscopic surgery: a randomized controlled trial (2026) · Frontiers in Surgery · doi
Gastrointestinal and hernia surgery subgroup findings were underpowered due to limited sample sizes (gastrointestinal, n = 9; hernia, n = 14) and shorter procedure durations.
data gaplimitationsevidence 5/5Keywords: gastrointestinal hernia surgery subgroup underpowered limited sample sizes shorter procedure durations - Guided endodontic microsurgery using a simplified surgical guide for mandibular first molars with intact buccal cortical bone (2026) · Oral Biology Research · doi
The present report includes only two cases; therefore, further studies with larger sample sizes are required to validate the clinical effectiveness of this approach.
data gaplimitationsevidence 4/5Keywords: present report includes cases further larger sample sizes required validate clinical effectiveness approach - Developing a practical machine learning model to predict post implantation syndrome after endovascular aneurysm repair (2026) · CVIR Endovascular · doi
The sample size of the study is relatively small, and intraoperative influencing factors have not been included in previous literature.
data gapinline gapsevidence 3/5Keywords: sample size relatively small intraoperative influencing factors included previous literature - Association between continuous low-dose norepinephrine infusion and intraoperative hypotension burden in patients aged 80 years and older undergoing total hip arthroplasty: a retrospective cohort study (2026) · Frontiers in Medicine · doi
Total intraoperative fluid volume differed significantly between groups, and its potential influence on postoperative outcomes cannot be excluded.
data gaplimitationsevidence 3/5Keywords: total intraoperative fluid volume differed groups potential influence postoperative outcomes cannot excluded
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