Histidine-Tryptophan-Ketoglutarate Cardioplegia Yields Different Results in Aortic Valve Surgery Depending on Patient Gender: A Pilot Study.

BACKGROUND: Histidine-tryptophan-ketoglutarate (HTK) cardioplegia induces cardiac arrest through membrane hyperpolarization. Aortic valve pathology leads to pathophysiological changes in left ventricular vascularization that may prevent adequate cardioplegic distribution. The objective of the study was to ascertain whether the use of Bretschneider cardioplegia in aortic valve surgery yields different outcomes for male and female patients. METHODOLOGY: Our study compares the perioperative data of 300 adult patients who underwent aortic valve replacement between June 2023 and June 2024 at the Emergency Cardiac Disease and Transplant Institute, Tîrgu Mures, Romania. Concomitant procedures, age under 18 years, retrograde or combined cardioplegia, and emergency surgery were excluded. The main outcome was operative mortality, and secondary outcomes were postoperative complications and paraclinical data such as ejection fraction and cardiac enzymes. RESULTS: Male patients comprised 190 (62%) of the sample. The most common age group was 61-70 years in both groups. The mortality rate was 6 (5.4%) for women compared to 9 (4.7%) for men. Preoperative left ventricular ejection fraction was the primary covariate determining 30-day postoperative mortality. Left ventricular ejection fraction decreased by 2.2% in men and 1.1% in women 30 days after surgery. CONCLUSIONS: The myocardial adaptation to aortic valve pathology exhibits gender-specific differences. However, the utilization of HTK cardioplegia obviates this disparity.

Acute Calculous Cholecystitis Associated with Leptospirosis: Which is the Emergency? A Case Report and Literature Review.

Introduction: Leptospirosis is a bacterium with a worldwide distribution and belongs to the group of zoonoses that can affect both humans and animals. Most cases of leptospirosis present as a mild, anicteric infection. However, a small percentage of cases develop Weil's disease, characterized by bleeding and elevated levels of bilirubin and liver enzymes. It can also cause inflammation of the gallbladder. Acute acalculous cholecystitis has been described as a manifestation of leptospirosis in a small percentage of cases; however, no association between leptospirosis and acute acalculous cholecystitis has been found in the literature. Case presentation: In this report, we describe the case of a 66-year-old patient who presented to the emergency department with a clinical picture dominated by fever, an altered general condition, abdominal pain in the right hypochondrium, nausea, and repeated vomiting. Acute calculous cholecystitis was diagnosed based on clinical, laboratory, and imaging findings. During preoperative preparation, the patient exhibited signs of liver and renal failure with severe coagulation disorders. Obstructive jaundice was excluded after performing an abdominal ultrasound and computed tomography scan. The suspicion of leptospirosis was then raised, and appropriate treatment for the infection was initiated. The acute cholecystitis symptoms went into remission, and the patient had a favorable outcome. Surgery was postponed until the infection was treated entirely, and a re-evaluation of the patient's condition was conducted six-week later. Conclusions: The icterohemorrhagic form of leptospirosis, Weil's disease, can mimic acute cholecystitis, including the form with gallstones. Therefore, to ensure an accurate diagnosis, leptospirosis should be suspected if the patient has risk factors. However, the order of treatments is not strictly established and will depend on the clinical picture and the patient's prognosis.

Adrenal Mass and Hypokalaemia: The Zebra Among Horses.

Pheochromocytoma rarely presents with unexplained hypokalaemia, although there are some case reports in the literature. The mechanism behind this could be the increased cellular potassium uptake promoted by beta-2-adrenoreceptor hyperactivation and insulin resistance. We present the case of a 68-year-old hypertensive female patient with a unilateral adrenal mass discovered on angio-CT and typical signs of adrenergic hyperstimulation (hypertensive crisis, headache, and sweating) associated with multiple arrhythmic episodes but with normal plasma and urinary catecholamine levels. During the work-up for hormonal hypersecretion and the cessation of anti-aldosterone medication, the patient presented resistant hypokalaemia. Due to uncorrectable hypokalaemia, we were unable to perform hormonal investigations for primary hyperaldosteronism and referred the patient for laparoscopic adrenalectomy. The histological diagnosis revealed left pheochromocytoma. Postoperatively, the patient experienced rebound hyperkalaemia. In a patient with a unilateral adrenal mass and hypokalaemia, besides primary hyperaldosteronism and adrenocorticotropic hormone-independent hypercortisolism, a possible pheochromocytoma should be ruled out as well by the clinician before surgery.

Levodopa-Entacapone-Carbidopa Intestinal Gel in the Treatment of Advanced Parkinson's Disease: A Single Center Real-World Experience.

Levodopa-entacapone-carbidopa intestinal gel infusion is a relatively new treatment option for advanced Parkinson's disease. We aimed to describe and analyze the characteristics of de novo levodopa-entacapone-carbidopa intestinal gel therapy in 20 consecutive patients with advanced Parkinson's disease. We assessed the profile of motor complications by evaluating the following: motor fluctuations, dyskinesias, and the freezing phenomenon at baseline (before the testing period) and before discharge. The treatment significantly reduced the duration of daily hours spent in off time compared with baseline pre-treatment values from a mean of 4.8 ± 0.9 h/day to a mean of 1.4 ± 0.5 h per day (p < 0.001). The duration and severity of peak-dose dyskinesia were also significantly reduced compared with baseline values. Out of the 10 patients who reported freezing, 8 did not present this complication at the pre-discharge assessment. Significant improvements were observed in Hoehn and Yahr scale scores in both the on and off states. The levodopa-entacapone-carbidopa intestinal gel therapy was well tolerated during the follow-up period immediately after initiation. Despite a relatively severe stage of the disease, all patients experienced a significant improvement in motor fluctuations, dyskinesias, and the freezing phenomenon.

Late Complications after Laparoscopic Longitudinal Gastrectomy - Case Report.

INTRODUCTION: Bariatric surgery is now widely regarded as the most effective treatment for morbid obesity. It aims to enhance patients' health by achieving long-lasting weight loss, reducing associated comorbidities, and improving their quality of life. CASE REPORT: The case involves a 51-year-old female patient who underwent sleeve gastrectomy eight years ago to address morbid obesity (Body Mass Index (BMI) = 43). Subsequently, the patient developed gastric obstructive syndrome, leading to diagnostic investigations including repeated upper digestive endoscopies and native computed tomography. These examinations revealed the presence of a hiatal hernia. In 2021, the patient underwent fundoplication type Dor with anterior hemivalve. However, post-surgery, the patient's condition did not improve, with persistent symptoms including regurgitation, heartburn, difficulty ingesting food, sensation of gastric fullness, and epigastralgia. Further exploratory procedures, including upper digestive endoscopy, abdominal computed tomography with contrast substance, and barium transit with contrast substance, led to the diagnosis of mediogastric stenosis postgastrectomy longitudinal, necessitating surgical intervention. This finding prompted a surgical approach involving distal gastric resection and restoration of digestive tract continuity through Hoffmeister-Finsterer gastro-jejunal anastomosis. Following the surgery, the patient's postoperative symptoms showed improvement. DISCUSSION: Several other studies have demonstrated that the incisura angularis is the most common site of obstruction, as was observed in our study. This particular location appears to be more prone to narrowing, likely attributable to its angular shape. The linear staple line in this area can create a locus minoris resistentiae for kinking, as well as increase the risk of true stenosis if stapling is performed too close to the incisura angularis. CONCLUSIONS: Bariatric surgery should not be considered as the initial treatment option. However, in cases where it becomes necessary, postoperative monitoring is essential to prevent complications or address them promptly.

Starting with 24-h levodopa carbidopa intestinal gel at initiation in a large cohort of advanced Parkinson's disease patients.

Continuous intra-jejunal infusion of levodopa-carbidopa intestinal gel (LCIG) is a long-term proven and effective treatment in advanced Parkinson's Disease (APD). Efficacy and safety of 16-h administration of LCIG has already been established. Additional benefits of 24-h LCIG administration have been reported in several case series and small clinical studies. The aim of this retrospective study was to compare the characteristics of patients who needed 24-h LCIG from the beginning of the DAT (device-aided treatment) with those who remained with the standard 16-h LCIG treatment and to identify particular motives if any. We initiated LCIG in 150 patients out of which in case of 62 patients (41,3%) due to unsatisfactory initial clinical benefits continuous 24-h LCIG was deemed necessary. Despite the subjective complaints and more severe clinical condition, at baseline evaluation we found statistically significant differences between 16-h LCIG cohort and 24-h LCIG cohort only in case of incidence of freezing (47% vs 65%, p = 0.03) and sudden off (32% vs 48%, p = 0.04). Wake hours/daytime LCIG does not always sufficiently improve the patient's quality of life in some patients due to persistent nighttime troublesome symptoms. Instead of labeling the patient as a non-responder, it is worth trying the 24-h LCIG dosage in a carefully selected group of patients, as there is currently no consensus on reliable criteria that serve the decision in these patients.

Influence of learning curve and surgeon experience on postoperative pain after laparoscopic treatment of inguinal hernias.

INTRODUCTION: Laparoscopic approach for inguinal hernia offers considerable advantages. Several risk factors for postoperative pain have been investigated, but few articles can be found about learning curve and surgeon's influence on postoperative pain after inguinal herniorrhaphy. PATIENTS AND METHODS: A prospective study was conducted including 105 patients. Surgical procedures were performed by two general surgeons performing TAPP procedure. Follow up was realized at one and three months after surgery. RESULTS: Majority of investigated data were without significant differences. In case of the Senior Surgeon we registered higher SEI (surgeon experience index), increased proportion of bilateral inguinal hernias (P = 0.0309) and higher percentage of longer surgical procedures (P = 0.0309). Meantime in case of the Junior Surgeon we recorded operations with intermediate duration (P = 0.0232) in a greater manner. During the follow up period, similar incidence of pain senzation was remarked among patients, without statistical significance. CONCLUSION: With adequate learning program and supervision TAPP procedure can be a safe technique when performed by young specialist too, presenting similar postoperative results with those of experienced surgeons. KEY WORDS: Inguinal hernia, TAPP, Selfgripping surgical mesh, Postoperative pain.

A single-center prospective study on the efficiency of negative pressure wound therapy versus conventional wound therapy in the postoperative management of devitalized and infected wounds.

INTRODUCTION: In this study, we aim to present the benefits of using negative pressure wound therapy, particularly with respect to the speed up of recovery time of devitalized and infected post-operative wounds, cost-effectiveness of local healing, pain relief during treatment, and returning to work and resuming normal daily activities at an earlier time. MATERIALS AND METHODS: This was a prospective study performed in General Surgery Clinic, between 2016-2018. The study comprised 67 patients divided into two groups: A (29 patients who underwent negative pressure wound therapy) and B (38 patients who underwent conventional wound therapy). RESULTS: The average age of patients included in group A was 64.2 ± 12.3 years and in group B, 63.2 ± 9.7 years (p=0.440). The wounds were located on the foot, thigh, abdomen, and other areas, and the average length of stay in hospital was 33 ± 18 days for group A versus 17 ± 14 days for group B (p=0.042) but with an average local healing time of 12 ± 5 days in group A versus 44 ± 17 days in group B (p<0.001). The average cost of hospitalization was higher in group A: 17,868 ± 9,560 RON (3,834 ± 2,051 euros) compared to group B: 6,025 ± 4,137 RON (1,292 ± 887 euros) (p=0.443) but the average cost of local healing was lower in group A: 5,437 ± 2,238 RON (1,166 ± 480 euro) compared to group B: 6,840 ± 3,520 RON (1,467 ± 755 euro) (p=0.005). CONCLUSIONS: The treatment of devitalized and infected post-operative wounds by using negative pressure wound therapy reduces local and complete healing time by approximately 30%, local healing costs by 26%, and allows better pain management during treatment with minimal complications. KEY WORDS: Negative pressure wound Therapy, Conventional wound therapy, Local healing, average cost.

The visceral adipose tissue bacterial microbiota provides a signature of obesity based on inferred metagenomic functions.

BACKGROUND: Metabolic inflammation mediated obesity requires bacterial molecules to trigger immune and adipose cells leading to inflammation and adipose depot development. In addition to the well-established gut microbiota dysbiosis, a leaky gut has been identified in patients with obesity and animal models, characterized by the presence of a tissue microbiota in the adipose fat pads. METHODS: To determine its potential role, we sequenced the bacterial 16 S rRNA genes in the visceral adipose depot of patients with obesity. Taking great care (surgical, biochemical, and bioinformatic) to avoid environmental contaminants. We performed statistical discriminant analyses to identify specific signatures and constructed network of interactions between variables. RESULTS: The data showed that a specific 16SrRNA gene signature was composed of numerous bacterial families discriminating between lean versus patients with obesity and people with severe obesity. The main discriminant families were Burkholderiaceae, Yearsiniaceae, and Xanthomonadaceae, all of which were gram-negative. Interestingly, the Morganellaceae were totally absent from people without obesity while preponderant in all in patients with obesity. To generate hypotheses regarding their potential role, we inferred metabolic pathways from the 16SrRNA gene signatures. We identified several pathways associated with adenosyl-cobalamine previously described to be linked with adipose tissue development. We further identified chorismate biosynthesis, which is involved in aromatic amino-acid metabolism and could play a role in fat pad development. This innovative approach generates novel hypotheses regarding the gut to adipose tissue axis. CONCLUSIONS: This innovative approach generates novel hypotheses regarding the gut to adipose tissue axis in obesity and notably the potential role of tissue microbiota.

Oversewing and Gastropexy in Laparoscopic Sleeve Gastrectomy - Two Futile Steps of the Procedure? An Observational Case-Control Study.

PURPOSE: Laparoscopic sleeve gastrectomy (LSG) is the most popular primary bariatric metabolic procedure worldwide but severe complications are still reported, and there is no ideal technique to avoid them. This study analyses the impact of oversewing (OS) and gastropexy (GP) on complication rate, early dyspeptic and late de novo GERD symptoms after LSG. MATERIAL AND METHOD: A case-control study was conducted on patients with obesity who underwent LSG. The total cohort was divided in group A (control group) - patients with no oversewing (OS) or gastropexy (GP), group B - patients with OS but no gastropexy and group C - patients with both OS and GP performed during LSG. RESULTS: We included 272 patients with obesity with a mean BMI 42.9±6.94 kg/m2, 96 patients in group A, 90 patients in group B and 86 in group C with no statistical differences between them. We had 5 cases of postoperative hemorrhage (4 in group A) and three patients who developed leaks (2 in group A and one in group B). Prolonged and severe early dyspeptic episodes and after 6 months reflux symptoms were significantly more in groups A and B (p<0.05). The operative time was longer in group B and C (p<0.05) but with no difference in procedure -related morbidity and in hospital length of stay. CONCLUSION: Adding both OS and GP to LSG reduce complications rate with no influence on procedure-related postoperative morbidity and in-hospital length of stay. GP reduces early postoperative dyspeptic and de novo GERD symptoms after LSG.

A Comprehensive Summary of the Current Understanding of the Relationship between Severe Obesity, Metabolic Syndrome, and Inflammatory Status.

At present, obesity, as a part of metabolic syndrome, represents the leading factor for disability, and is correlated with higher inflammation status, morbidity, and mortality. The purpose of our study is to add new insights to the present body of knowledge regarding the correlations between chronic systemic inflammation and severe obesity, which cannot be treated without considering other metabolic syndrome conditions. Biomarkers of high-level chronic inflammation are recognized as important predictors of pro-inflammatory disease. Besides the well-known pro-inflammatory cytokines, such as WBCs (white blood cells), IL-1 (interleukin-1), IL-6 (interleukin-6), TNF-alpha (tumor necrosis factor-alpha), and hsCRP (high-sensitivity C-reactive protein), as well as anti-inflammatory markers, such as adiponectin and systemic inflammation, can be determined by a variety of blood tests as a largely available and inexpensive inflammatory biomarker tool. A few parameters, such as the neutrophil-to-lymphocyte ratio; the level of cholesterol 25-hydroxylase, which is part of the macrophage-enriched metabolic network in adipose tissue; or levels of glutamine, an immune-metabolic regulator in white adipose tissue, are markers that link obesity to inflammation. Through this narrative review, we try to emphasize the influence of the weight-loss process in reducing obesity-related pro-inflammatory status and associated comorbidities. All data from the presented studies report positive results following weight-loss procedures while improving overall health, an effect that lasts over time, as far as the existing research data show.

Human liver microbiota modeling strategy at the early onset of fibrosis.

BACKGROUND: Gut microbiota is involved in the development of liver diseases such as fibrosis. We and others identified that selected sets of gut bacterial DNA and bacteria translocate to tissues, notably the liver, to establish a non-infectious tissue microbiota composed of microbial DNA and a low frequency live bacteria. However, the precise set of bacterial DNA, and thereby the corresponding taxa associated with the early stages of fibrosis need to be identified. Furthermore, to overcome the impact of different group size and patient origins we adapted innovative statistical approaches. Liver samples with low liver fibrosis scores (F0, F1, F2), to study the early stages of the disease, were collected from Romania(n = 36), Austria(n = 10), Italy(n = 19), and Spain(n = 17). The 16S rRNA gene was sequenced. We considered the frequency, sparsity, unbalanced sample size between cohorts to identify taxonomic profiles and statistical differences. RESULTS: Multivariate analyses, including adapted spectral clustering with L1-penalty fair-discriminant strategies, and predicted metagenomics were used to identify that 50% of liver taxa associated with the early stage fibrosis were Enterobacteriaceae, Pseudomonadaceae, Xanthobacteriaceae and Burkholderiaceae. The Flavobacteriaceae and Xanthobacteriaceae discriminated between F0 and F1. Predicted metagenomics analysis identified that the preQ0 biosynthesis and the potential pathways involving glucoryranose and glycogen degradation were negatively associated with liver fibrosis F1-F2 vs F0. CONCLUSIONS: Without demonstrating causality, our results suggest first a role of bacterial translocation to the liver in the progression of fibrosis, notably at the earliest stages. Second, our statistical approach can identify microbial signatures and overcome issues regarding sample size differences, the impact of environment, and sets of analyses. TRIAL REGISTRATION: TirguMECCH ROLIVER Prospective Cohort for the Identification of Liver Microbiota, registration 4065/2014. Registered 01 01 2014.

Theoretical and Practical Aspects in the Use of Bretschneider Cardioplegia.

The race for an ideal cardioplegic solution has remained enthusiastic since the beginning of the modern cardiac surgery era. The Bretschneider solution, belonging to the "intracellular cardioplegic" group, is safe and practical in myocardial protection during ischemic time. Over time, some particular concerns have arisen regarding the effects on cardiac metabolism and postoperative myocardial functioning. This paper reviews the most important standpoints in terms of theoretical and practical analyses.

The Impact of the COVID-19 Pandemic on Colorectal Cancer Patients in a Tertiary Center in Romania. Single Center Retrospective Study.

Background: The novel coronavirus, SARS-COV-2, was first reported in Wuhan, China in the end of 2019. To curb its spread, social distancing measures and new safety regulations were implemented which led to major disruptions in colorectal cancer care. It is however unknown how it influenced the Romanian colorectal cancer care. Methods and Material: We assessed the demographical, clinical, intraoperative and pathological data of our colorectal cancer patients, 302 in total, between 15.03.2019-14.03.2021. The first year's data was considered as the control group and the second one, the study (pandemic) group. Results: We observed a 12% decrease in colorectal cancer hospitalizations in the first year, 38,6% in the first six months. The rate of emergency admissions, colo/ileostomy formatting procedures, palliative resections, clinical metastasis was higher in the pandemic group. More advanced locoregional invasion, a higher tumor stage, higher rate of vascular, perineural invasion, positive resection margin, and a higher lymph node yield was seen after the restrictions were implemented. Conclusion: The COVID-19 pandemic and the response against it had a major effect on the colorectal cancer care in our country. The outcomes of these worse clinical and pathological findings are unknown, but it is important to do further research in this field. We think colorectal cancer care should have an absolute priority in future pandemics.

A comparative analysis of three types of parathyroidectomies in renal hyperparathyroidism Single centre prospective cohort of 77 patients.

BACKGROUND: There is no consensus regarding optimal timing or best surgical procedure for refractory renal hyperparathyroidism patients. We aim to compare the results after three types of parathyroidectomies performed for sHPT in a single referral centre. METHODS: This study included patients on chronic hemodialysis submitted to three types of parathyroidectomy between 2010 and 2017. The primary outcome measure was relief of the symptoms and normalization of the main biochemical parameters. RESULTS: All symptoms improved significantly after surgery, especially osteoatricular pains. iPth dropped significantly immediately and during the follow up in all 3 groups; on short term, iPth values for group C(tPtx) were significantly lower compared to the other 2 subgroups (p=0.009). Furthermore, 5 patients from group C presented iPth values <12 pg/ml one year post-surgery, though this values tend to improve after. Patients from group B and C developed most often acute postoperative hypocalcemia, and persistent hyperparathyroidism was encountered especially after sPtx(10.3%). CONCLUSION: Significant improvement of both symptoms and biochemical parameters was noted in the majority of cases, regardless the parathyroidectomy type. tPtx is frequently followed by chronic hypoparathyroidism and subtotal parathyroidectomy is followed by a higher number of persistent and recurrent sHPT. KEY WORDS: Secondary hyperparathyroidism, Parathyroidectomy, Parathyroid autotransplant.

Safety of anastomotic techniques and consequences of anastomotic leakage in patients with colorectal cancer: a single surgeon experience.

INTRODUCTION: Colorectal cancer is a common type of malignant disease of the digestive tract. Anastomotic leakage (AL) still represents a serious complication in gastrointestinal surgery, associated with high morbidity and mortality. METHODS: We conducted a retrospective case-control study and analyzed a single surgeon's data about 359 patients treated for colorectal cancer. Patients were divided as follows: Study Group (patients with AL - 37 patients) and Control Group (patients without AL - 322 patients). Surgical and anastomotic technique-related information was processed. RESULTS: Surgical procedures for right sided colon tumors resulted in a significantly lower rate of anastomotic leakage (P=0.0231). For left sided colectomies end to end handsewn double layer anastomosis presented decreased odds (OR=0.176). For sigmoid segmental resection end to end anastomotic techniques developed low rate of fistula formation (handsewn - OR=0.593, stapled - OR=0.685). Performing Dixon type surgical interventions, anastomotic techniques seemed without influence on anastomotic leak appearance (handsewn and stapled), although distal anastomoses were identified as significant risk factors for fistula formation (P=0.0017). In order to perform subtotal colectomy, side to side sutures (handsewn and stapled) seemed safe choices for anastomotic procedure (P=0.0073). Patient with anastomotic leakage suffered a significantly longer hospital stay (P=0.0079), presented higher rate of surgical reintervention (P=0.0001), increased mortality (P=0.0001) and elevated hospitalization costs (P=0.0079). CONCLUSION: Postoperative complications like anastomosis leakage significantly increase hospitalization period, necessity of surgical reintervention, mortality and financial costs. In order to avoid these unpleasant events, bowel anastomoses require standardization during surgery.

Influence of Mesh Fixation on the Development of Postoperative Pain after Laparoscopic Inguinal Hernia Repair: A Single Surgeon Experience.

OBJECTIVE: Primary aim of the present article was to determine the relationship between mesh fixation methods and the occurrence of postoperative pain after laparoscopic inguinal hernia repair. Materials and Methods: 101 patients diagnosed with inguinal hernia benefited from elective laparoscopic treatment of the abdominal wall defect. Follow up was realized at one and three months after surgical intervention. The followed details contained clinical, surgical and pain-related data. Results: Multivariable analysis resulted young adults (OR=4.226; p=0.0467), recurrent hernia (OR=4.862; p=0.0415) and use of fixation requiring surgical mesh (OR=4.226; p=0.0467) as significant risk factors in the development of chronic postoperative pain. During the follow up period, patients who benefitted of mesh fixation complained about significantly higher pain sensation (pain index at one month: SG=10.27; CG=5.07; p=0.0080; pain index at three months: SG=5.02; CG=1.42; p=0.0406). Concerning chronic postoperative pain syndrome, six patients from SG (12.76%) and only a single patient from CG complained after three months about pain index greater than 18.5 points, concluding that mesh fixation significantly increases the possibility of chronic postoperative pain syndrome (p=0.0455). Conclusions: Mesh fixation methods during laparoscopic inguinal hernia repair seem to contribute to the development of chronic postoperative pain. Avoiding traumatizing mesh fixation methods could be a suitable option for surgeons.

Association of intracellular lipid accumulation in subcutaneous adipocyte precursors and plasma adipokines in bariatric surgery candidates.

BACKGROUND: The adipocyte expansion is a critical process with implications in the pathogenesis of obesity associated metabolic syndrome. Impaired adipogenesis leads to dysfunctional, hypertrophic adipocytes, local inflammation and peripheric insulin resistance. METHODS: We assessed the relationship between the adipogenic differentiation capacity of the subcutaneous adipose derived stem cells (ASCs), evaluated by total lipid accumulation, and the metabolic and hormonal profile in a group of obese female patients proposed for bariatric surgery (N = 20) versus normal weight female controls (N = 7). RESULTS: The lipid accumulation (measured as optical density at 492 nm) of ASCs during their differentiation to adipocytes was significantly lower in ASCs isolated from obese patients as compared to ASCs isolated from normal weight patients (0.49 ± 0.1 vs. 0.71 ± 0.1, p < 0.001). Significant negative correlations between lipid accumulation in adipogenic differentiated ASCs and plasma concentrations of triglycerides (p < 0.01), insulin (p < 0.001), HOMA-IR (p < 0.01), adiponectin (p < 0.05) and leptin/adiponectin ratio (p < 0.05) were found in obese group. CONCLUSIONS: In severely obese female patients, the abnormal adipogenesis is related to insulin resistance and leptin/adiponectin ratio. The abnormal lipid accumulation in the mature adipocyte derived from obese ASCs could possible predict the further development of type 2 diabetes mellitus in severely obese patients and influence the selection of patients for bariatric surgery.