[Comprehensive chemical pattern recognition of atractylodis rhizoma].

A method of comprehensive chemical pattern recognition of Atractylodis Rhizoma was established by GC-MS fingerprint, principal component analysis, cluster analysis and discriminant analysis. A DB-wax column (0.25 mm x 60 m, 0.

[A clinical study of tension-free inguinal hernioplasty in patients with different ages].

Objective: To study the application of mesh and hernia ring for tension-free hernia repair in inguinal hernioplasty in patients with different ages.

Methods: A total of 190 patients with inguinal hernia undergoing tension-free hernia repair were divided into two groups with age above and below 60 years, and the surgical effect and complications were compared.

Results: Tension-free hernia repair with mesh and hernia ring was superior to conventional hernia repair in terms of operative time, mean time for exercise and pain in patients above 60 years, but not in patients below 60 years.