Natalia Dowgiałło-Gornowicz

Prof. Dr. Natalia Dowgiałło-Gornowicz

orcid

Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
15 October 2019 in Scientific Reports
Verified
Journal Article
Open access
PDF file
MWMaciej Stanisław Walędziak
Maciej Stanisław Walędziak
ALAnna Lasek
Anna Lasek
MWMichał Wysocki
Michał Wysocki
MSMichael Su
Michael Su
MBMaciej Bobowicz
Maciej Bobowicz
MPMichał Pędziwiatr
Michał Pędziwiatr
Laparoscopic appendectomy (LA) for treatment of acute appendicitis has gained acceptance with its considerable benefits over open appendectomy. LA, however, can involve some adverse outcomes: morbidity, prolonged length of hospital stay (LOS) and hospital readmission. Identification of predictive factors may help to identify and tailor treatment for patients with higher risk of these adverse events. Our aim was to identify risk factors for serious morbidity, prolonged LOS and hospital readmission after LA. A database compiled information of patients admitted for acute appendicitis from eighteen Polish and German surgical centers. It included factors related to the patient characteristics, peri- and postoperative period. Univariate and multivariate logistic regression models were used to identify risk factors for serious perioperative complications, prolonged LOS, and hospital readmissions in acute appendicitis cases. 4618 laparoscopic appendectomy patients were included. First, although several risk factors for serious perioperative complications (C-D III-V) were found in the univariate analysis, in the multivariate model only the presence of intraoperative adverse events (OR 4.09, 95% CI 1.32–12.65, p = 0.014) and complicated appendicitis (OR 3.63, 95% CI 1.74–7.61, p = 0.001) was statistically significant. Second, prolonged LOS was associated with the presence of complicated appendicitis (OR 2.8, 95% CI: 1.53–5.12, p = 0.001), postoperative morbidity (OR 5.01, 95% CI: 2.33–10.75, p < 0.001), conversions (OR 6.48, 95% CI: 3.48–12.08, p < 0.001) and reinterventions after primary procedure (OR 8.79, 95% CI: 3.2–24.14, p < 0.001) in the multivariate model. Third, although several risk factors for hospital readmissions were found in univariate analysis, in the multivariate model only the presence of postoperative complications (OR 10.33, 95% CI: 4.27–25.00), reintervention after primary procedure (OR 5.62, 95% CI: 2.17–14.54), and LA performed by resident (OR 1.96, 95% CI: 1.03–3.70) remained significant. Laparoscopic appendectomy is a safe procedure associated with low rates of complications, prolonged LOS, and readmissions. Risk factors for these adverse events include complicated appendicitis, postoperative morbidity, conversion, and re-intervention after the primary procedure. Any occurrence of these factors during treatment should alert the healthcare team to identify the patients that require more customized treatment to minimize the risk for adverse outcomes.

3 August 2022 in Langenbeck's Archives of Surgery
Verified
Journal Article
Open access
PDF file
PLPaweł Lech
Paweł Lech
MMMaciej Michalik
Maciej Michalik
KWKamil Waczyński
Kamil Waczyński
KOKarolina Osowiecka
Karolina Osowiecka
NDNatalia Dowgiałło-Gornowicz
Natalia Dowgiałło-Gornowicz
Purpose: Laparoscopic sleeve gastrectomy (LSG) is currently the most common bariatric surgery in the world. Although it appears to be a safe treatment for obesity, it is still at risk of complications. The latest literature shows that postoperative bleeding occurs in 2–4% of cases, and up to 3% of cases requires reoperation for hemostasis. The aim of the study is to assess the effect of tranexamic acid (TXA) on hemorrhagic events and the reoperation rate in patients undergoing LSG. Methods: The study was designed as a retrospective analysis of patients undergoing LSG. We investigate the patients 6 months before and 6 months after introducing the prophylaxis doses of TXA into our bariatric protocol (non-TXA group vs TXA group). Results: Three hundred fourteen patients underwent LSG in a high-volume center from 2016 to 2017. After introducing TXA, a statistically significant reduction in the incidence of hemorrhage during surgery was observed (22.3% vs 10.8%, p = 0.006). There was a statistically significant reduction in the need for the staple line oversewing (10.2% vs 1.9%, p = 0.002). The mean operating time and the mean length of hospital stay were significantly higher in the non-TXA group than TXA group (63.1 vs 53.7 min, p < 000.1; 2.3 vs 2.1, p = 0.02). In both groups of patients, no venous thromboembolism or other complications occurred within 6 months after the surgery. Conclusions: The prophylactic doses of TXA may be useful in reducing the hemorrhagic events during LSG. It may also shorten the length of hospital stay and the operating time.

11 August 2023 in Obesity Surgery
Verified
Journal Article
Open access
PDF file
NDNatalia Dowgiałło-Gornowicz
Natalia Dowgiałło-Gornowicz
PLPaweł Lech
Paweł Lech
PMPiotr Major
Piotr Major
CGCollaborative Study Group
Collaborative Study Group
PFPaula Franczak
Paula Franczak
MWMateusz Wityk
Mateusz Wityk
Introduction: With the increase in life expectancy and a growing number of people suffering from obesity, bariatric and metabolic surgery is becoming a major concern in the elderly population. The study aimed to collect, systematize and present the available data on the surgical treatment of obesity among Polish patients over 65 years of age. Material and Methods: A retrospective study analysed patients over 65 years who underwent laparoscopic bariatric procedures in Poland from 2008 to 2022. The efficacy endpoints were percentage of excess weight loss (EWL%), percentage of total weight loss (%TWL), improvement in obesity-related diseases. Results: The group consisted of 284 patients (173 women, 60.9%). The mean follow-up was 47.5 months. The mean BMI before surgery was 43.1 kg/m2. 146 (51.4%) patients had T2D, and 244 (85.9%) had HT. The most common procedure was sleeve gastrectomy (82.0%). The mean EWL% after surgery was 50.9%, and the mean TWL% after surgery was 20.6%. There was the statistically significant difference between AGB vs OAGB, SG vs OAGB in %EWL (p = 0.0116, p = 0.009, respectively) and RYGB vs OAGB in %TWL (p = 0.0291). After surgery, 93 patients (63.7%) had complete or partial remission of T2D, and 112 patients (45.9%) had complete or partial remission of HT. Conclusion: Bariatric surgery appears to be a safe and effective method of treatment of obesity in patients over 65 years of age. OAGB seems to have better results in weight loss than SG, RYGB, and AGB in older patients. Graphical

1 August 2020 in Obesity Surgery
Verified
Journal Article
Open access
PDF file
MWMichał Wysocki
Michał Wysocki
PMPiotr Małczak
Piotr Małczak
Mateusz WierdakMateusz Wierdak
Mateusz Wierdak
MWMaciej Stanisław Walędziak
Maciej Stanisław Walędziak
HHHady Razak Hady
Hady Razak Hady
PMPiotr Major
Piotr Major
Background: The most commonly performed bariatric operations are laparoscopic sleeve gastrectomy (LSG) and bypass surgeries (laparoscopic one-anastomosis gastric bypass (OAGB) and laparoscopic Roux-en-Y gastric bypass (LRYGB)), and predicting perioperative morbidity is crucial for early, safe patient discharge. We aimed to determine whether C-reactive protein (CRP) and white blood count (WBC) measured on the first postoperative day predicts perioperative morbidity in the first 30-days after LSG and bypass surgeries. Methods: We retrospectively analyzed data for 1400 patients who underwent bariatric surgery in seven bariatric centers from 2014 to 2018. Patients were divided into a complicated group (patients with postoperative complications) and a non-complicated group. We also performed separate analyses for LSG and bypass surgeries. Results: Patients were 929 women (66%) and 471 men (34%) with a median age of 42 years (range, 35–51 years); 1192 patients underwent LSG (85%), 120 underwent LRYGB (9%), and 80 underwent OAGB (6%). We performed ROC analyses to set cut-off points, followed by multivariate logistic regressions. CRP > 33.32 mg/L increased the odds ratio (OR) of perioperative complications after LSG 2.27 times, while WBC > 12.15 × 103/μL on postoperative day 1 was associated with a 3.34-times greater or of developing complications. WBC > 13.78 × 103/μL was associated with a 13.34-times higher or of perioperative morbidity in patients undergoing bypass surgeries. Conclusion: Even slightly elevated CRP and WBC on postoperative day 1 should alert surgeons to the potential risk of perioperative morbidity.

7 June 2023 in Videosurgery and Other Miniinvasive Techniques
Verified
Journal Article
Open access
NDNatalia Dowgiałło-Gornowicz
Natalia Dowgiałło-Gornowicz
KWKamil Waczyński
Kamil Waczyński
KWKinga Waczyńska
Kinga Waczyńska
PLPawel Lech
Pawel Lech
Introduction To achieve effective weight loss and remission of comorbidities, various surgical methods are used in the treatment of obesity. The most common procedures performed worldwide are followed by the newest ones. Aim: To present the results of the first group of patients from a...

1 December 2018 in Medicine
Verified
Journal Article
Open access
ALAnna Lasek
Anna Lasek
MPMichał Pędziwiatr
Michał Pędziwiatr
JKJakub Kenig
Jakub Kenig
MWMaciej Stanisław Walędziak
Maciej Stanisław Walędziak
MWMichał Wysocki
Michał Wysocki
LZLeszek Zwolakiewicz
Leszek Zwolakiewicz
Acute appendicitis (AA) is the most common surgical emergency and can occur at any age. Nearly all of the studies comparing outcomes of appendectomy between younger and older patients set cut-off point at 65 years. In this multicenter observational study, we aimed to compare laparoscopic appendectomy for AA in various groups of patients with particular interest in the elderly and very elderly in comparison to younger adults. Our multicenter observational study of 18 surgical units assessed the outcomes of 4618 laparoscopic appendectomies for AA. Patients were divided in 4 groups according to their age: Group 1—<40 years old; Group 2—between 40 and 64 years old; Group 3—between 65 and 74 years old; and Group 4—75 years old or older. Groups were compared in terms of peri- and postoperative outcomes. The ratio of complicated appendicitis grew with age (20.97% vs 37.50% vs 43.97% vs 56.84%, P < .001). Similarly, elderly patients more frequently suffered from perioperative complications (5.06% vs 9.3% vs 10.88% vs 13.68%, P < .001) and had the longest median length of stay (3 [Interquartile Range (IQR) 2–4] vs 3 [IQR 3–5], vs 4 [IQR 3–5], vs 5 [IQR 3–6], P < .001) as well as the rate of patients with prolonged length of hospital stay (LOS) >8 days. Logistic regression models comparing perioperative results of each of the 3 oldest groups compared with the youngest one showed significant differences in odds ratios of symptoms lasting >48 hours, presence of complicated appendicitis, perioperative morbidity, conversion rate, prolonged LOS (>8 days). The findings of this study confirm that the outcomes of laparoscopic approach to AA in different age groups are not the same regarding outcomes and the clinical picture. Older patients are at high risk both in the preoperative, intraoperative, and postoperative period. The differences are visible already at the age of 40 years old. Since delayed diagnosis and postponed surgery result in the development of complicated appendicitis, more effort should be placed in improving treatment patterns for the elderly and their clinical outcome.