Related Experiment Video
Updated: Feb 6, 2026

Identification and Protection of the Recurrent Laryngeal Nerve during Transoral Robotic Thyroidectomy
Published on: October 24, 2025
Recurrence-associated factors of laparoscopic adenomyomectomy for severely symptomatic adenomyoma
Wentao Yu1,2, Guanyuan Liu1, Chongdong Liu1
1Department of Obstetrics and Gynecology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 10020, P.R. China.
Abstract:
The present study aimed to identify which patients with adenomyoma would benefit from sparing the uterus and which patients should undergo a hysterectomy to avoid secondary surgery. Patients with pathology-proven adenomyoma admitted to Beijing Chao-Yang Hospital between November 2005 and November 2015 were retrospectively reviewed. Relief and reappearance of dysmenorrhea following laparoscopic adenomyomectomy were evaluated. All 49 patients (mean age, 40.6±5.2 years; age range, 26-51 years) presented with severe dysmenorrhea prior to surgery. Dysmenorrhea was identified to be relieved in 83.7% (41/49) of patients at the 6-month follow-up. No factors were revealed to have a significant effect on the surgical outcome. The median follow-up period was 4.6 (1-11) years; and 24.5% (12/49) of patients experienced recurrence of dysmenorrhea. Multivariate analysis identified preoperative serum cancer antigen 125 (CA 125) levels [hazard ratio (HR), 2.356; 95% confidence interval (CI), 1.271-3.570; P=0.011], postoperative gonadotropin-releasing hormone agonist (GnRH-a) treatment (HR, 0.540; 95% CI, 0.241-0.873; P=0.017) and accompanying endometriosis (HR, 2.182; 95% CI, 1.556-3.031; P=0.003) as independent risk factors for relapse. Laparoscopic adenomyomectomy is effective for alleviating dysmenorrhea in patients with adenomyoma. Patients with lower preoperative serum CA 125 levels without accompanying endometriosis benefited greater from adenomyomectomy compared with all other patients. Postoperative GnRH-a treatment strengthens therapeutic effects.
Related Concept Videos
Transcription Factors
Factors Affecting Solubility
Transcription Elongation Factors
The transcription elongation is regulated via pausing of RNA polymerase on several occasions during transcription. In bacteria, these halts are necessary because the transcription of DNA into mRNA is coupled to the translation of that mRNA...
Factors Affecting Drug Distribution: Miscellaneous Factors
Age plays a significant role due to differences in body composition among different age groups. Infants, for instance, have a higher proportion of total body water and lower albumin levels, a protein that binds drugs in the bloodstream. This unique composition in infants enhances the...
Electrolytes: van't Hoff Factor
The colligative properties of a solution depend only on the number, not on the identity, of solute species dissolved. The concentration terms in the equations for various colligative properties (freezing point depression, boiling point elevation, osmotic pressure) pertain to all solute species present in the solution. Nonelectrolytes dissolve physically without dissociation or any other accompanying process. Each molecule that dissolves yields one...
Factors Affecting Protein-Drug Binding: Drug-Related Factors
One crucial factor in drug-protein binding is the drug's lipophilicity or its affinity for fat. More lipophilic drugs tend to have higher binding extents. For example, highly lipophilic drugs like cloxacillin exhibit substantial protein binding, with as much as 95% of the drug binding to proteins. In...

