View clinical trials related to Fasting.
Filter by:This study is being done to examine whether fasting for 13 hours every night is feasible and if it can help breast cancer survivors lose weight and improve their health. - Previous studies have found that women who are overweight or obese when their breast cancer is found (diagnosed) have a greater risk of their breast cancer recurring. Recent research suggests that prolonged nighttime fasting (>13 hours) may improve the risk of recurrence for breast cancer. - This study will examine if fasting for 13 hours per night is doable for participants and will also study what the effect of fasting is on quality of life, mood, fatigue, body size, and markers of health in the blood.
Gastric volume will be measured before, 5, 30, 60, 90 and 120 min after drinking 450ml of maltodextrin in young adults and elderly.
Perioperative fasting remains a common clinical practice in surgical patients to prevent the development of postoperative anesthesia- and surgical-related complications. Clinical observational studies indicated that the combination catabolic effects resulted from prolonged perioperative fasting and profound surgical stress are likely to induce extensive protein catabolism, muscle breakdown and impaired glycemic control during postoperative phase, leading to the development of severe complications. Furthermore, prolonged gastrointestinal fasting is associated with microbial translocation that deteriorates the early recovery after surgery. This clinical trial anticipates in determining the beneficial effect of intraoperative feeding to improve intraoperative hemodynamics and enhance postoperative recovery due to attenuation of systemic catabolism and improvement of insulin sensitivity to glycemic control.
This study will evaluate the effect of short-term fasting (36 hours) in gene expression in blood cells in healthy volunteers.
This study will evaluate the ability of short-term fasting to reduce chemotherapy toxicity and enhance anti-tumour response in patients with colorectal carcinoma subjected to chemotherapy.
Many preclinical studies have demonstrated the beneficial effects of intermittent fasting (IF) in a wide range of neurological and cardiovascular diseases. This pilot study aims to investigate the safety and compliance as well as efficacy of one specific IF intervention called time-restricted feeding (TRF; 16 hours fasting daily) in patients with acute ischemic stroke (AIS).
Prior to caesarean section, patients should fast from solid food for 6 hours and from clear fluids for 2 hours. Carbohydrate drinks can also be consumed up to 2 hours before surgery. These drinks have been shown to improve patient well-being after surgery and may potentially improve the neonatal blood glucose level after delivery and reduce the risk of a low blood glucose level. This study aims to assess the influence of pre-operative carbohydrate drinks on blood glucose levels of the baby at delivery.
Traditionally, patients are asked to fast prior to invasive cardiac procedures. There exists neither clear evidence nor guidance about the benefits of this. Hypothesis/Objective : To show that allowing unrestricted oral intake before a coronary interventional procedure is not inferior to imposing a pre-procedural fasting period, in terms of adverse events, in patients requiring coronary angiography or a planned or semi-urgent percutaneous coronary intervention. Method: The study is a prospective, monocentric, controlled, single-blind, randomized trial in two parallel arms. The investigating physician performing the interventional procedure and evaluating the safety judgment criteria will not be informed of the patient's randomization arm. In order to keep the blind, the medical and paramedical staff of the interventional cardiology room will not inquire about the fasting status of patients included in the study. Patients are randomized either to the pre-procedural fasting arm or to the absence of pre-procedural fasting. - No intervention: Pre-procedural fasting is defined by the absence of ingestion of fluids or solid food for at least 6 hours before the examination. - Experimental: free feeding and drinking until the procedure. Patients are followed for 4 hours after the end of the procedure at the hospital for adverse events (vagal discomfort, nausea, vomiting or hypoglycaemia). Then a follow-up will be done at day 7 after the procedure (by telephone for outpatients or discharged from the hospital and in the cardiology department for patients still hospitalized on D7) to look for the occurrence of acute renal failure or pneumonia
This is a prospective randomized crossover trial. Patients will be randomized to the FMD or regular diet during three rounds of chemotherapy. After the third round, patients will cross over to the opposite arm. The primary hypothesis is that there will be fewer cases of Grade 2-4 nausea when patients are in the FMD sequence. The primary objective is to assess differences in toxicities in patients undergoing chemotherapy with a combination of taxol/carboplatin when using a fasting mimicking diet when compared to normal diet before and after treatment.
The current standard for cataract surgery is phacoemulsification with intraocular lens (IOL) implantation. In this procedure, topical anesthesia has become favoured over local anesthetic blocks due to potential serious complications resulting from retrobulbar or peribulbar anesthesia. Routinely, intravenous sedation is used to supplement the topical anesthesia. If patients are not fasted, there is the potential to reduce preoperative discomfort and anxiety, ultimately improving the satisfaction with the care received. An additional benefit is that liberal fasting policies allow for flexibility in the scheduling of cases, particularly for urgent or semi-urgent situations. Clinical practice guidelines for cataract surgery published by the Canadian Ophthalmological Society (COS) recommend that fasting is unnecessary if only topical anesthesia is used without intravenous (IV) opiates or sedation. In general, these suggestions are in agreement with guidelines from the United Kingdom's Royal College of Ophthalmologists, who note that "it is unnecessary to fast patients for local anesthetic cataract surgery." According to the CAS practice guidelines, the same fasting restrictions are applied when IV sedation or anesthesia with peripheral nerve blocks (e.g. retrobulbar or peribulbar blocks) are administered. At our centre at the Kensington Eye Institute (KEI) in Toronto, Canada, almost all cataract patients receive fentanyl and midazolam, with propofol given only in rare circumstances with close observation. This research project at the Kensington Eye Institute will consist of two phases, namely a prospective, consecutive observational analysis and a prospective time-interrupted study. In the first phase, an observational analysis will be conducted in which consecutive cataract surgery patients will be surveyed with a validated questionnaire to assess their satisfaction. Inclusion criteria will include any cataract patient scheduled for surgery who is willing and able to participate in the study, with fully informed consent provided. Previously published literature has evaluated the use of a patient satisfaction questionnaire regarding preoperative fasting, which includes items on hunger, thirst, hoarseness of voice, difficulty breathing, pain, agitation, anxiety, nausea, vomiting, shivering and problems with concentration. A Research Assistant will complete the questionnaire with all patients preoperatively at KEI, as well as a baseline demographic checklist that will include the patient's age, gender, laterality, surgeon, length of time fasted for solids and clear liquids, as well as the type and amount of solids and liquids. Secondary endpoints will be collected postoperatively and will include the incidence of aspiration, nausea and vomiting, as well as the rate of cancellations of surgeries directly related to issues with fasting guidelines. The first phase of the study will be used to conduct an appropriate sample size calculation, which will ensure that our second phase is not underpowered for the primary efficacy endpoint. In the second phase, a time-interrupted prospective study will be established with the following two arms: (1) experimental arm: patients will be encouraged by the Research Assistant to drink clear fluids right up to the 2 hour limit as specified in the latest ASA and CAS guidelines, with no intervention applied for solids, and (2): control arm: standard of care without any encouragement to drink clear fluids up to the 2 hour limit. Patients will be assigned to groups based on month, so that the first month of study execution will enroll all patients into the experimental arm, the second month will enroll only into the control arm, and that subsequent months will alternate enrollment in a similar method. Given the design, the study will be in accordance with the latest ASA and CAS preoperative fasting guidelines, and will not involve any use of financial or other methods of coercion to incentivize patients that are randomly assigned to the experimental arm. The encouragement process will only involve the Research Assistant asking and encouraging the patient to drink a standardized quantity of clear fluid (up to 400mL of water, coffee, tea, apple or cranberry juice and maximum of 2 teaspoons of sugar) up to the ASA and CAS mandated guideline of 2 hours preoperatively, with the patient making the final determination of whether to comply. Following the encouragement process, a demographics and satisfaction questionnaire will be administered to each patient preoperatively, as well as another satisfaction questionnaire administered following the surgery. Baseline demographics, primary and secondary endpoints will remain consistent with the first phase.