Background: In malnourished patients with colorectal cancer, hypoalbuminemia is common and was proposed to determine the postoperative outcome of colorectal surgery. Mounting articles published but have not been evaluated. We aim to assess the predictive value of preoperative hypoalbuminemia in patients undergoing colorectal surgery.Methods: We performed a literature search from PubMed, Euro PMC, and Cochrane with the terms serum albumin, hypoalbuminemia, prognosis, outcome, colorectal cancer, and neoplasm. We also hand-searched and included any relevant papers. Hypoalbuminemia is defined as plasma albumin level < 3.5 mg/dL. We restricted the included studies to English language and adults undergoing colectomy, laparotomy, laparoscopy, or abdominoperineal resection. Any types of articles were included, except an abstract-only publication and those that did not report the key exposure or outcome of interest. The key exposures were mortality, hospitalization time, and morbid conditions (thrombosis, surgical site infection, sepsis, and wound events). We pooled the odds ratio from each included literature as effect size. The Newcastle Ottawa scale and GRADE were used to determine the quality of each included study.Results: Hereof 7 observational studies (236,480 individuals) were included. Our meta-analysis found that preoperative hypoalbuminemia can predict the postoperative outcome in colorectal cancer patients. Individuals with hypoalbuminemia were not associated with 30-day mortality (risk ratio [RR] 2.05 [0.72, 5.86], P = .18, I 2 = 99%) but were associated with morbidity (RR 2.28 [1.78,2.93], P < .00001, I 2 = 87.5%), surgical complication (RR 1.69 [1.34,2.13], P < .00001, I 2 = 98%), and hospitalization (RR 2.21 [1.93,2.52], P < .00001, I 2 = 0%). According to newcastle ottawa scale, the included studies are of moderate to sound quality. Conclusions:The current systematic review and meta-analysis showed that preoperative hypoalbuminemia was significantly associated with morbidity, length of stay, and surgical complication but not mortality.Abbreviations: BSA = basal serum albumin, CRC = colorectal cancer, NOS = newcastle ottawa scale, RR = risk ratio.

Treatment for severe burns has improved rapidly in the last 20 years. Nowadays, patients can survive with burns covering up to approximately 90% of the body, although they often face permanent physical impairment. This type of research is a literature review. A literature review was conducted to gather information regarding the evaluation of skin natural change function in the split-thickness skin graft. This research is a type of review article that aims to obtain information about acne based on bio-markers. Source of data used secondary sources. The method of data collection through collecting data was from research articles taken within the last five years. Skin grafting remains an essential step on the reconstructive surgeon ladder. Meanwhile, the basic premise has remained similar results over the years. New techniques and devices have contributed to significantly improved functional and aesthetic results. Advances in the production of skin substitutes have provided better options to treat patients and will continue to be an essential and dynamic component of this field in the future.