Feasibility of Postoperative Home Monitoring Using Video Consultation and Vital Sign Monitoring of Bariatric Patients.

RATIONALE: The length of hospital stay after bariatric surgery has decreased rapidly in recent years to an average of 1 day (one midnight). The transition from a controlled hospital environment to home environment may be a big step for patients. For these patients, home monitoring can be a substitute. METHODS: A pilot study of 84 morbidly obese patients undergoing either laparoscopic Roux-Y gastric bypass (LRYGB) or laparoscopic sleeve gastrectomy (LGS) was performed. Home monitoring consisted of daily contact via video consultation and measurement of vital signs at home. The primary outcome was feasibility of home monitoring. Secondary outcomes were complications and patient satisfaction measured with a questionnaire (PSQ-18). RESULTS: In 77 of the 84 patients (92%), videoconference was possible on day 1, 74 patients (88%) on day 2 and 76 patients (90%) on day 3. Four patients (5%) were never reached. On day 1, 52 patients (62%) performed all instructed measurements, on day 2, 49 patients (58%) and on day 3, 63 patients (75%). Only 47 out of 84 patients (56%) measured the instructed amount of times on all 3 days. High satisfaction rates were reported in the patients receiving home monitoring. CONCLUSION: Our first experience with home monitoring was disappointing since home monitoring of vital signs had poor compliance and not all patients were able to use the application. Further refinement of the home monitoring tool is needed to increase compliance and utility of the tool.

Validity of a simple sleep monitor for diagnosing OSA in bariatric surgery patients.

BACKGROUND: One third of bariatric surgery patients have an apnea-hypopnea index (AHI)>15/hr, representing moderate and severe forms of obstructive sleep apnea (OSA). Treating these forms of OSA is recommended to reduce the risk of perioperative complications. The AHI derived from poly(somno)graphy [P(S)G] is the gold standard for OSA diagnosis. However, performing P(S)G in all patients scheduled for bariatric surgery is time consuming and expensive. An accurate and simple screening tool able to rule out moderate to severe OSA would reduce the number of patients needing mandatory P(S)Gs. OBJECTIVES: To assess the validity of a simple sleep monitor (Checkme Health Monitor) as a screening tool for OSA in bariatric surgery patients. SETTING: Obesity Center Amsterdam, OLVG-West, Amsterdam, the Netherlands METHODS: Patients scheduled for bariatric surgery were prospectively enrolled in this study. All patients underwent preoperative P(S)G and simultaneously used the Checkme to assess the oxygen desaturation index. The diagnostic performance of the Checkme for AHI ≥15/hr was assessed using receiver operating characteristic curve analysis. RESULTS: A total of 50 patients were analyzed. Sensitivity and negative predictive value were 100% and 100%, respectively, specificity and positive predictive value were 69% and 64%, respectively, for the optimal cutoff value of Checkme-3% oxygen desaturation index ≥9/hr for P(S)G-AHI ≥15. The area under the curve value expressed by the receiver operating characteristic curve was .95. CONCLUSION: The Checkme is valid for exclusion of moderate and severe OSA in bariatric surgery patients. The Checkme enables bariatric clinics not to perform P(S)G in all patients scheduled for bariatric surgery.

Radiological staging in patients with hilar cholangiocarcinoma: a systematic review and meta-analysis.

OBJECTIVE: To obtain diagnostic performance values of CT, MRI, ultrasound and 18-fludeoxyglucose positron emission tomography (PET)/CT for staging of hilar cholangiocarcinoma. METHODS: A comprehensive systematic search was performed for articles published up to March 2011 that fulfilled the inclusion criteria. Study quality was assessed with the quality assessment of diagnostic accuracy studies tool. RESULTS: 16 articles (448 patients) were included that evaluated CT (n=11), MRI (n=3), ultrasound (n=3), or PET/CT (n=1). Overall, their quality was moderate. The accuracy estimates for evaluation of CT for ductal extent of the tumour was 86%. The sensitivity and specificity estimates of CT were 89% and 92% for evaluation of portal vein involvement, 83% and 93% for hepatic artery involvement, and 61% and 88% for lymph node involvement, respectively. Data were too limited for adequate comparisons of the different techniques. CONCLUSION: Diagnostic accuracy studies of CT, MRI, ultrasound or PET/CT for staging of hilar cholangiocarcinoma are sparse and have moderate methodological quality. Data primarily concern CT, which has an acceptable accuracy for assessment of ductal extent, portal vein and hepatic artery involvement, but low sensitivity for nodal status.

Multidisciplinary management of hilar cholangiocarcinoma (Klatskin tumor): extended resection is associated with improved survival.

BACKGROUND: Effective diagnosis and treatment of patients with hilar cholangiocarcinoma (HCCA) is based on the synergy of endoscopists, interventional radiologists, radiotherapists and surgeons. This report summarizes the multidisciplinary experience in management of HCCA over a period of two decades at the Academic Medical Center in Amsterdam, with emphasis on surgical outcome. METHODS: From 1988 until 2003, 117 consecutive patients underwent resection on the suspicion of HCCA. Preoperative work-up included staging laparoscopy, preoperative biliary drainage, assessment of volume/function of future remnant liver and radiation therapy to prevent seeding metastases. More aggressive surgical approach combining hilar resection with extended liver resection was applied as of 1998. Outcomes of resection including actuarial 5-year survival were assessed. RESULTS: Eighteen patients (15.3%) appeared to have a benign lesion on microscopical examination of the specimen, leaving 99 patients with histologically proven HCCA. These 99 patients were analysed according to three 5-year time periods of resection, i.e. period 1 (1988-1993, n=45), 2 (1993-1998, n=25) and 3 (1998-2003, n=29). The rate of R0 resections increased and actuarial five-year survival significantly improved from 20±5% for the periods 1 and 2, to 33±9% in period 3 (p<0.05). Postoperative morbidity and mortality in the last period were 68% and 10%, respectively. CONCLUSION: Extended surgical resection resulted in increased rate of R0 resections and significantly improved survival. Candidates for resection should be considered by a specialized, multidisciplinary team.