In industrialized countries the average life expectancy has continuously increased during the last decades and this trend is expected to continue. In Switzerland, a sexagenarian now has a 50% chance, if male, and 70% if female of reaching the age of 80. By 2050, the population of over 80 year-olds will have multiplied 2.7 times in Switzerland. Age is considered the greatest single risk factor for developing cancer, bladder cancer is no exception and typically affects old patients with a median age at the time of diagnosis of around 70. In the US 32% of patients diagnosed with bladder cancer are between 75 and 84. In addition, the prevalence of comorbidities in this old population is very high as hypertension is present in 50-60%, coronary artery disease in 15%, cardiac failure in 15%, dementia in 30%, diabetes in 10-20%, hearing and vision loss in 20-30%. The presence of advanced age, several comorbidities, new acute medical condition (i.e. fracture or newly diagnosed cancer) define the clinical condition of frailty. This medical condition is a consequence of age-related decline in many physiological systems, with defects accumulating with the passage of time (age) resulting in an increased risk of death (ageing).

So surgery and the perioperative period can be exceptionally challenging in old and frail patients due to the presence of comorbidities and age-related physiological changes. In these patients treatment goals should focus on maintaining a good quality of life for the remaining time span by aiming for excellent functional results and if possible long term remission. The gold standard of care today for muscle invasive bladder cancer is pelvic lymph node dissection, cystectomy and urinary diversion which is associated with a high postoperative complication rate (50%). This is probably why today younger age, high stage or grade disease and lower comorbidity are associated with higher odds of receiving radical cystectomy. However, elderly alone should not preclude the indication for radical cystectomy and urinary diversion. In addition there is evidence that the type of anesthesia may impact cognition in old patients. Major cardiac and non-cardiac surgical procedures are known to affect cognitive function. The incidence of postoperative cognitive dysfunction (POCD) varies greatly (4% to 41% after major surgery). POCD may persist being a risk factor for long-term cognitive deterioration.

There is evidence that a multimodal prehabilitation program including optimization of nutrition and mobilisation can improve functional recovery after surgery, resulting in less complications and short length of stay. Optimizing the nutritional status of the frail patients before cystectomy and avoiding general anesthesia could be an alternative to conventional pre- and intraoperative approaches to improve outcome and quality of life, including pain early return of gastrointestinal function cognition and functional activities.

The objective of this study is to evaluate the implementation of a multimodal prehabilitation program including optimization of nutrition (protein and carbohydrate) and hydration combined with the use of regional anesthesia (spinal-epidural anesthesia) during cystectomy in a series old frail patients and compared/matched them to a historical series of similar frail patients in terms of early return of quality of life using the Convalescence and Recovery Evaluation (CARE) instrument, cognition (CERAD test), and postoperative morbidity. As there is a need for a shift in the emphasis towards more patient and recovery-centric measures such as quality of life, the investigators decide to assess the early return of quality of life using the CARE instrument as the primary endpoint. The CARE instrument is a robust multi-dimensional measure of convalescence after major abdominal and pelvic surgery. It has been specifically designed and validated for patients undergoing abdominal and pelvic surgery (like cystectomy) with a high test retest reliability. The CARE instrument covers 4 domains (pain, gastrointestinal, cognition and activity). The importance of patient-reported health status is well recognized and is a facet of healthcare quality. In addition it is a valuable means for quantitatively measuring the implication of technology adoption for the patient, who typically judges the efficacy of a surgical procedure by whether it improves quality of life. The Consortium of Establish a Registry for Alzheimer's Disease (CERAD) test is a widely validated test packet for evaluation of old patients with dementia. However this CERAD test has also been validated in the perioperative setting. It consists of a test battery, including verbal fluency, Boston naming test, word list learning, constructional praxis, word list recall, word list recognition, and mini mental state examination, which can detect subtle changes in cognition. It is easy applicable and the investigators have expertise using this test in a similar cystectomy population.

The investigators will, in a first step, start with a pilot study including 20 patients in order to assess the feasibility of the multimodal approach in the urologic clinic and this population. The sample size for the feasibility endpoint is based on convenience and no a priori calculation was conducted. This number of patients is comparable to published case series illustrating the feasibility of this anesthetic technique for cystectomy patients.

Secondly, the investigators will add 11 patients in the intervention group and then compare this series with a historical series of 31 similar frail and old cystectomy patients. This is based on the CARE results of the historical series (mean CARE score on POD 7 of 50.68 with a SD ± 6.43 and considering a difference of 7 points as clinically relevant with an effect size of 0.7).