Tomas Poskus

Dr. Tomas Poskus

orcid

Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

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

Representative Publications

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1 May 2018 in The Lancet Infectious Diseases
Verified
Journal Article
Open access
ABAneel Bhangu
Aneel Bhangu
AAAdesoji O Ademuyiwa
Adesoji O Ademuyiwa
MAMaria Lorena Aguilera
Maria Lorena Aguilera
PAPhilip Alexander
Philip Alexander
SASara W Al-Saqqa
Sara W Al-Saqqa
RBRuth Blanco
Ruth Blanco
Surgical site infection (SSI) is one of the most common infections associated with health care, but its importance as a global health priority is not fully understood. We quantified the burden of SSI after gastrointestinal surgery in countries in all parts of the world. This international, prospective, multicentre cohort study included consecutive patients undergoing elective or emergency gastrointestinal resection within 2-week time periods at any health-care facility in any country. Countries with participating centres were stratified into high-income, middle-income, and low-income groups according to the UN's Human Development Index (HDI). Data variables from the GlobalSurg 1 study and other studies that have been found to affect the likelihood of SSI were entered into risk adjustment models. The primary outcome measure was the 30-day SSI incidence (defined by US Centers for Disease Control and Prevention criteria for superficial and deep incisional SSI). Relationships with explanatory variables were examined using Bayesian multilevel logistic regression models. This trial is registered with ClinicalTrials.gov, number NCT02662231. Between Jan 4, 2016, and July 31, 2016, 13 265 records were submitted for analysis. 12 539 patients from 343 hospitals in 66 countries were included. 7339 (58·5%) patient were from high-HDI countries (193 hospitals in 30 countries), 3918 (31·2%) patients were from middle-HDI countries (82 hospitals in 18 countries), and 1282 (10·2%) patients were from low-HDI countries (68 hospitals in 18 countries). In total, 1538 (12·3%) patients had SSI within 30 days of surgery. The incidence of SSI varied between countries with high (691 [9·4%] of 7339 patients), middle (549 [14·0%] of 3918 patients), and low (298 [23·2%] of 1282) HDI (p<0·001). The highest SSI incidence in each HDI group was after dirty surgery (102 [17·8%] of 574 patients in high-HDI countries; 74 [31·4%] of 236 patients in middle-HDI countries; 72 [39·8%] of 181 patients in low-HDI countries). Following risk factor adjustment, patients in low-HDI countries were at greatest risk of SSI (adjusted odds ratio 1·60, 95% credible interval 1·05-2·37; p=0·030). 132 (21·6%) of 610 patients with an SSI and a microbiology culture result had an infection that was resistant to the prophylactic antibiotic used. Resistant infections were detected in 49 (16·6%) of 295 patients in high-HDI countries, in 37 (19·8%) of 187 patients in middle-HDI countries, and in 46 (35·9%) of 128 patients in low-HDI countries (p<0·001). Countries with a low HDI carry a disproportionately greater burden of SSI than countries with a middle or high HDI and might have higher rates of antibiotic resistance. In view of WHO recommendations on SSI prevention that highlight the absence of high-quality interventional research, urgent, pragmatic, randomised trials based in LMICs are needed to assess measures aiming to reduce this preventable complication. DFID-MRC-Wellcome Trust Joint Global Health Trial Development Grant, National Institute of Health Research Global Health Research Unit Grant.

8 January 2020 in International Journal of Colorectal Disease
Verified
Journal Article
Open access
PDF file
TPTomas Poskus
Tomas Poskus
DDDonatas Danys
Donatas Danys
GMGabija Makunaite
Gabija Makunaite
AMAntanas Mainelis
Antanas Mainelis
SMSaulius Mikalauskas
Saulius Mikalauskas
Kęstutis StrupasKęstutis Strupas
Kęstutis Strupas
Purpose: To compare the results of laser hemorrhoidoplasty (LHP), excisional hemorrhoidectomy (EH), and sutured mucopexy (MP). Methods: A randomized, parallel-group, double-blinded, single-center prospective study. Patients: Symptomatic 2nd- or 3rd-degree hemorrhoids patients. Interventions: Computer randomization sequence, patient blinding, operating surgeon blinding, and surgeon-evaluator blinding. LHP was performed using a 1470 nm diode laser. Up to 250 J of energy delivered per 1 hemorrhoid. The procedure was performed circumferentially. MP ligations were placed in the area of visible hemorrhoidal tissue. Standard EH was performed up to the level of the hemorrhoidal pedicle. Follow-up at 1 and 6 weeks and 1 year. Outcome measures: Recurrence of symptoms requiring treatment, intensity, and duration of pain after the operation, patients’ quality of life, fecal incontinence, and patients’ evaluation of treatment. Results: A total of 121 patients. Groups were even preoperatively. LHP took 15 min (SD 5.6), MP took 16 min (SD 5.58), and EH took 29 min (SD 10.3). Recurrence requiring treatment rate was 0% after EH, 10% after LHP, and 22% after MP, p = 0.004. LHP and MP were less painful than EH, p < 0.001. Patients after LHP returned to regular activity after 15 days, after MP after 22 days, and after EH after 30 days, p < 0.001. SF-36 scores were better after EH. Symptoms of fecal incontinence improved in all the groups. Patients evaluate LHP better than EH and MP. Limitations: Single-center study. Conclusions: Laser hemorrhoidoplasty is a safe, minimally invasive option for hemorrhoids, more effective than MP and less effective than EH. Patients evaluate this technique better than the other two.

9 May 2014 in BJOG: An International Journal of Obstetrics & Gynaecology
Verified
Journal Article
Closed access
PDF file
TPTomas Poskus
Tomas Poskus
DBD Buzinskienė
D Buzinskienė
GDG Drasutiene
G Drasutiene
NSNe Samalavicius
Ne Samalavicius
ABA Barkus
A Barkus
AJA Jakaitiene
A Jakaitiene

13 October 2022 in Cancers
Verified
Journal Article
Open access
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ABAugustinas Bausys
Augustinas Bausys
MKMarius Kyzauskas
Marius Kyzauskas
VAVilius Abeciūnas
Vilius Abeciūnas
ADAusteja Elzbieta Degutyte
Austeja Elzbieta Degutyte
RBRimantas Bausys
Rimantas Bausys
TPTomas Poskus
Tomas Poskus
Colorectal cancer remains the third most prevalent cancer worldwide, exceeding 1.9 million new cases annually. Surgery continues to be the gold standard treatment option. Unfortunately, colorectal cancer surgery carries significant postoperative morbidity and mortality. Moreover, most rectal cancer patients and some patients with locally advanced colon cancer require preoperative neoadjuvant therapy. It improves long-term outcomes but impairs patients’ physical fitness and thus further increases surgical risk. Recently, prehabilitation has gained interest as a novel strategy to reduce treatment-related morbidity for patients undergoing colorectal cancer surgery. However, the concept is still in its infancy, and the role of prehabilitation remains controversial. In this comprehensive review, we sum up present evidence on prehabilitation before colorectal cancer surgery. Available studies are very heterogenous in interventions and investigated outcomes. Nonetheless, all trials show at least some positive effects of prehabilitation on patients’ physical, nutritional, or psychological status or even reduced postoperative morbidity. Unfortunately, the optimal prehabilitation program remains undetermined; therefore, this concept cannot be widely implemented. Future studies investigating optimal prehabilitation regimens for patients undergoing surgery for colorectal cancer are necessary.

5 April 2018 in Surgical Endoscopy
Verified
Journal Article
Open access
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Mohannad EledreesiMohannad Eledreesi
Mohannad Eledreesi
TDThomas M. Drake
Thomas M. Drake
JCJulian Camilleri-Brennan
Julian Camilleri-Brennan
STStephen Tabiri
Stephen Tabiri
SFStuart J. Fergusson
Stuart J. Fergusson
EEEugenio Grasset Escobar
Eugenio Grasset Escobar
Background: Appendicitis is the most common abdominal surgical emergency worldwide. Differences between high- and low-income settings in the availability of laparoscopic appendectomy, alternative management choices, and outcomes are poorly described. The aim was to identify variation in surgical management and outcomes of appendicitis within low-, middle-, and high-Human Development Index (HDI) countries worldwide. Methods: This is a multicenter, international prospective cohort study. Consecutive sampling of patients undergoing emergency appendectomy over 6 months was conducted. Follow-up lasted 30 days. Results: 4546 patients from 52 countries underwent appendectomy (2499 high-, 1540 middle-, and 507 low-HDI groups). Surgical site infection (SSI) rates were higher in low-HDI (OR 2.57, 95% CI 1.33–4.99, p = 0.005) but not middle-HDI countries (OR 1.38, 95% CI 0.76–2.52, p = 0.291), compared with high-HDI countries after adjustment. A laparoscopic approach was common in high-HDI countries (1693/2499, 67.7%), but infrequent in low-HDI (41/507, 8.1%) and middle-HDI (132/1540, 8.6%) groups. After accounting for case-mix, laparoscopy was still associated with fewer overall complications (OR 0.55, 95% CI 0.42–0.71, p < 0.001) and SSIs (OR 0.22, 95% CI 0.14–0.33, p < 0.001). In propensity-score matched groups within low-/middle-HDI countries, laparoscopy was still associated with fewer overall complications (OR 0.23 95% CI 0.11–0.44) and SSI (OR 0.21 95% CI 0.09–0.45). Conclusion: A laparoscopic approach is associated with better outcomes and availability appears to differ by country HDI. Despite the profound clinical, operational, and financial barriers to its widespread introduction, laparoscopy could significantly improve outcomes for patients in low-resource environments. Trial registration: NCT02179112.

17 September 2019 in Medicina
Verified
Journal Article
Open access
PDF file
MJMatas Jakubauskas
Matas Jakubauskas
RLRaminta Luksaite
Raminta Luksaite
ASAudrius Sileikis
Audrius Sileikis
Kęstutis StrupasKęstutis Strupas
Kęstutis Strupas
TPTomas Poskus
Tomas Poskus
Background: Gallstone or biliary ileus is a late complication of gallstone disease. It accounts for 1%–4% of all bowel obstructions and is more common in elderly patients. The preferred treatment option is to mechanically remove the impacted stones. It is done surgically using open or laparoscopic approach and rarely, when stones are impacted in the colon, endoscopically. In this paper we present five consecutive cases of gallstone ileus and describe possible diagnostic and minimally invasive treatment options. Case presentation: During a five-month period a total of five patients were treated for gallstone ileus. All patients were female and from 48 to 87 years of age. Symptoms were not specific and common for all small bowel obstructions. Upon admission the patients also had unspecific laboratory findings—neutrophilic leukocytosis and various C-reactive protein concentrations, ranging from 8 to 347 mg/L. According to the hospital protocol, all patients initially underwent an abdominal ultrasound, which was inconclusive, and therefore every patient additionally had a CT scan with intravenous contrast. After these two diagnostic modalities one patient still did not have the definitive gallstone ileus diagnosis, as the ectopic stone was not visible. Four patients in our case series were treated using minimally invasive methods: in one case the stone was removed endoscopically, and laparoscopically in the other three. Treatment outcomes were good in four cases as the patients fully recovered, however one patient suffered a massive cerebral infarction after the operation and passed away. Conclusions: Gallstone ileus is a rare and difficult-to-diagnose condition. Management of these patients in every case should be individualized, as there are many options, each with their own advantages and disadvantages. We show that minimally invasive treatment such as colonoscopy or laparoscopy is possible in these cases.