Focus on ... IRC International Water and Sanitation Cen tre

In December 1993 the IRC International Water and Sanitation Centre celebrated its 25th anniversary. The centre was established in 1968 by agreement between the World Health Organization (WHO) and the Netherlands Government. WHO designated the centre as the WHO Collaborating Centre for Community Water Supply and Sanitation, a status IRC has continued to maintain. Since 1981, IRC has operated as an independent, international, non-profit organization.

[Round ligament varicosities mimicking inguinal hernia during pregnancy]

3 pregnant women, aged 34, 28, and 39 years respectively, presented with an inguinal swelling. In one patient the swelling was bilateral and painful. Reposition was possible and ultrasound examination revealed round ligament varicosities, the most common cause of an inguinal swelling during pregnancy. Expectative treatment is advised as the condition usually disappears after parturition. It is concluded that in every pregnant woman with an inguinal swelling, sonography with doppler imaging must be performed to confirm the diagnosis of round ligament varicosities to avoid unnecessary surgery.

Perioperative strategy in colonic surgery; LAparoscopy and/or FAst track multimodal management versus standard care (LAFA trial)

BACKGROUND

Recent developments in large bowel surgery are the introduction of laparoscopic surgery and the implementation of multimodal fast track recovery programs. Both focus on a faster recovery and shorter hospital stay. The randomized controlled multicenter LAFA-trial (LAparoscopy and/or FAst track multimodal management versus standard care) was conceived to determine whether laparoscopic surgery, fast track perioperative care or a combination of both is to be preferred over open surgery with standard care in patients having segmental colectomy for malignant disease.

METHODS/DESIGN

The LAFA-trial is a double blinded, multicenter trial with a 2 x 2 balanced factorial design. Patients eligible for segmental colectomy for malignant colorectal disease i.e. right and left colectomy and anterior resection will be randomized to either open or laparoscopic colectomy, and to either standard care or the fast track program. This factorial design produces four treatment groups; open colectomy with standard care (a), open colectomy with fast track program (b), laparoscopic colectomy with standard care (c), and laparoscopic surgery with fast track program (d). Primary outcome parameter is postoperative hospital length of stay including readmission within 30 days. Secondary outcome parameters are quality of life two and four weeks after surgery, overall hospital costs, morbidity, patient satisfaction and readmission rate. Based on a mean postoperative hospital stay of 9 +/- 2.5 days a group size of 400 patients (100 each arm) can reliably detect a minimum difference of 1 day between the four arms (alfa = 0.95, beta = 0.8). With 100 patients in each arm a difference of 10% in subscales of the Short Form 36 (SF-36) questionnaire and social functioning can be detected.

DISCUSSION

The LAFA-trial is a randomized controlled multicenter trial that will provide evidence on the merits of fast track perioperative care and laparoscopic colorectal surgery in patients having segmental colectomy for malignant disease.

Border screening for SARS

With the rapid international spread of severe acute respiratory syndrome (SARS) from March through May 2003, Canada introduced various measures to screen airplane passengers at selected airports for symptoms and signs of SARS. The World Health Organization requested that all affected areas screen departing passengers for SARS symptoms. In spite of intensive screening, no SARS cases were detected. SARS has an extremely low prevalence, and the positive predictive value of screening is essentially zero. Canadian screening results raise questions about the effectiveness of available screening measures for SARS at international borders.

"Components separation technique" for the repair of large abdominal wall hernias

BACKGROUND

The "components separation technique" is a method for abdominal wall reconstruction in patients with large midline hernias that cannot be closed primarily. The early and late results of this technique were evaluated in 43 patients.

METHODS

Records of 43 patients, 11 women and 32 men, with a mean age of 49.7 (range 22 to 78), were reviewed for body length and weight, size and cause of the hernia, intra- and postoperative mortality and morbidity, with special attention given to wound and pulmonary complications. Patients were invited to attend the outpatient clinic afterward for at least 12 months for physical examination of the abdominal wall.

RESULTS

The defect resulted after elective surgery in 19 patients and after acute surgery in 24 patients. In 11 patients, the defect was a result of open treatment of generalized peritonitis, and 13 patients had a recurrent incisional hernia. One patient died on the sixth postoperative day from mesenteric thrombosis. The postoperative course was complicated in 17 patients: fascial dehiscence in one, hematoma in five, seroma in two, wound infection in six, skin necrosis in one, and respiratory insufficiency in two. Thirty-eight patients were seen for followup. After a mean followup of 15.6 months (range 12 to 30 months), a recurrent hernia was found in 12 of the 38 patients (32%). The remaining four patients had no recurrent hernia after 1, 1, 3, and 4 months, respectively.

CONCLUSIONS

The "components separation technique" is useful for the reconstruction of large abdominal wall hernias, especially under contaminated conditions in which the use of prosthetic material is contraindicated. Further research is needed to reduce the relatively high reherniation rate.