A survey on bacterial contamination of lavage water in electric warm-water lavage toilet seats and of the gluteal cleft after lavage.

Electric warm-water lavage toilet seats are in wide use as an appliance beneficial for the maintenance of hygiene and the prophylaxis and improvement of conditions such as constipation and hemorrhoids. In this study, we surveyed the bacterial content in the lavage water of warm-water lavage toilet seats, and fecal bacterial contamination of the gluteal and genital regions due to droplet infection from post-defecation lavage, to examine the problems inherent to the use of such lavage units. The presence of viable bacteria in lavage water was confirmed in this survey.

Optimal sutures for use in the abdomen: an evaluation based on the formation of adhesions and abscesses.

Purpose: This study explored the optimal suture materials for use in the peritoneal cavity based on the formation of adhesions and abscesses under clean and contaminated conditions.

Methods: The parietal peritoneum and muscle layer of rats were incised. The incision was followed by interrupted suturing in the clean group.

Optimal suture materials for contaminated gastrointestinal surgery: does infection influence the decrease of the tensile strength of sutures?

Purpose: Suture materials are selected based on the following factors: absorbable/non-absorbable, monofilament/multifilament, duration with sufficiently high tensile strength, and the tissue to be sutured. Absorbable sutures are hydrolyzed in tissues. However, little is known about the influence of infection on the hydrolysis and decrease in the tensile strength.