Modulname:
OP-KISS
Kurzname:
OP
Surveillance objective:
Infection-Surveillance
Surveillance principle:
Patient-based for Surgical Departments
Patient collective:
- Stationary patients
Short description:
Surveillance of Surgical Site Infections and, optionally, Lower Respiratory Tract Infections after Common or Particularly Relevant Surgeries (Indicator Surgeries).
Detail description:
OP-KISS Module (Surveillance of Surgical Patients)
Postoperative wound infections are among the most common types of nosocomial infections and are a concern for all surgical specialties. Wound infections often have negative consequences for affected patients and the entire surgical department, which is why they have always been closely monitored by both doctors and patients.
To enable comparability of infection rates across different hospitals, infection rates must be analyzed separately for different types of surgeries. KISS focuses on a series of surgeries that are either frequently performed or have particular relevance for wound infections (so-called indicator surgeries). Participating departments in OP-KISS select one or more surgical groups from a catalog that includes over 30 surgical groups across nearly all surgical specialties. Indicator surgery groups are defined by their OPS procedure codes and, in some cases, by ICD-10 diagnosis codes.
To determine the number of postoperative wound infections, each patient who undergoes a selected indicator surgery is followed up postoperatively at least until discharge from the hospital. Wound infections that occur after discharge but before the maximum surveillance period ends must also be documented if they come to the department’s attention.
Uniformity in data collection is ensured through the application of KISS definitions for wound infections, which classify wound infections as superficial, deep, or organ/space infections. From the number of wound infections following all indicator surgeries in a group, the wound infection rate per surgery group can be calculated. To account for the varying composition of patient populations in different hospitals and to determine each patient's individual risk based on certain known risk factors, risk stratification is applied. The internationally used NNIS risk score is applied, which considers surgery duration, the patient's ASA score, and the contamination level of the surgical wound. These data are collected for each included surgery, and different risk categories are assigned based on the number of risk variables present in a surgery.
For some types of surgeries (e.g., appendectomy, cholecystectomy, colon surgeries), separate wound infection rates are calculated for laparoscopic and open surgical procedures. To simplify interpretation, the NRC calculates the standardized wound infection rate for each participating department per selected surgery group. This rate indicates the ratio of actual wound infections to the expected number of wound infections based on the risk profile of the hospital's own patient population.
In addition to recording wound infections, it is also optionally possible to record postoperative lower respiratory tract infections. The surveillance period is limited to a maximum of 30 days and ends, unlike wound infection monitoring, upon hospital discharge.
The NRC provides KISS participants with an electronic system for documenting surveillance data. Hospitals wishing to participate in OP-KISS must first complete an introductory course, where the surveillance method is thoroughly explained and trained using case examples. Interested parties can find the dates for upcoming introductory courses on our homepage under "Events."