scholarly journals Absence of Association between Preoperative Estimated Glomerular Filtration Rates and Postoperative Outcomes following Elective Gastrointestinal Surgeries: A Prospective Cohort Study

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Sivesh K. Kamarajah ◽  
Behrad Barmayehvar ◽  
Mustafa Sowida ◽  
Amirul Adlan ◽  
Christina Reihill ◽  
...  

Background. Preoperative risk stratification and optimising care of patients undergoing elective surgery are important to reduce the risk of postoperative outcomes. Renal dysfunction is becoming increasingly prevalent, but its impact on patients undergoing elective gastrointestinal surgery is unknown although much evidence is available for cardiac surgery. This study aimed to investigate the impact of preoperative estimated glomerular filtration rate (eGFR) and postoperative outcomes in patients undergoing elective gastrointestinal surgeries. Methods. This prospective study included consecutive adult patients undergoing elective gastrointestinal surgeries attending preassessment screening (PAS) clinics at the Queen Elizabeth Hospital Birmingham (QEHB) between July and August 2016. Primary outcome measure was 30-day overall complication rates and secondary outcomes were grade of complications, 30-day readmission rates, and postoperative care setting. Results. This study included 370 patients, of which 11% (41/370) had eGFR of <60 ml/min/1.73 m2. Patients with eGFR < 60 ml/min/1.73 m2 were more likely to have ASA grade 3/4 (p<0.001) and >2 comorbidities (p<0.001). Overall complication rates were 15% (54/370), with no significant difference in overall (p=0.644) and major complication rates (p=0.831) between both groups. In adjusted models, only surgery grade was predictive of overall complications. Preoperative eGFR did not impact on overall complications (HR: 0.89, 95% CI: 0.45–1.54; p=0.2). Conclusions. Preoperative eGFR does not appear to impact on postoperative complications in patients undergoing elective gastrointestinal surgeries, even when stratified by surgery grade. These findings will help preassessment clinics in risk stratification and optimisation of perioperative care of patients.

Author(s):  
M. Runkel ◽  
T. D. Diallo ◽  
S. A. Lang ◽  
F. Bamberg ◽  
M. Benndorf ◽  
...  

Abstract Background The impact of body compositions on surgical results is controversially discussed. This study examined whether visceral obesity, sarcopenia or sarcopenic obesity influence the outcome after hepatic resections of synchronous colorectal liver metastases. Methods Ninety-four consecutive patients with primary hepatic resections of synchronous colorectal metastases were identified from a single center database between January 2013 and August 2018. Patient characteristics and 30-day morbidity were retrospectively analyzed. Body fat and skeletal muscle were calculated by planimetry from single-slice CT images at the level of L3. Results Fifty-nine patients (62.8%) underwent minor hepatectomies, and 35 patients underwent major resections (37.2%). Postoperative complications occurred in 60 patients (62.8%) including 35 patients with major complications (Clavien–Dindo grade III–V). The mortality was nil at 30 days and 2.1% at 90 days. The body mass index showed no influence on postoperative outcomes (p = 1.0). Visceral obesity was found in 66 patients (70.2%) and was significantly associated with overall and major complication rates (p = .002, p = .012, respectively). Sarcopenia was observed in 34 patients (36.2%) without a significant impact on morbidity (p = .461), however, with longer hospital stay. Sarcopenic obesity was found in 18 patients (19.1%) and was significantly associated with postoperative complications (p = .014). Visceral obesity, sarcopenia and sarcopenic obesity were all identified as significant risk factors for overall postoperative complications. Conclusion Visceral obesity, sarcopenic obesity and sarcopenia are independent risk factors for overall complications after resections of CRLM. Early recognition of extremes in body compositions could prompt to perioperative interventions and thus improve postoperative outcomes.


2018 ◽  
Vol 80 (06) ◽  
pp. 586-592
Author(s):  
Uma Patnaik ◽  
Smriti Panda ◽  
Alok Thakar

Objective This study was aimed to classify and study complications of surgery of the cranial base, primarily from an otorhinolaryngology perspective. Design This study was designed with consecutive cohort of skull base surgical cases. Setting Tertiary referral academic center. Participants Patients having skull-base surgery at a otorhinolaryngology based skull-base unit, from 2002 to 2015. Main Outcome Measures Enumeration of complications is the main outcome of this study. Surgical procedures, categorized for complexity as per a unified system, are applicable to endoscopic and open procedures. Complications were categorized as per the British Association of Otolaryngologists coding of surgical complications. Complication classified as major if life-threatening, causing permanent disability, or compromising the result of surgery. Results A total of 342 patients (n = 342) were operated; 13 patients' records were excluded due to < 6 months posttreatment follow-up. The study group constituted 204 anterior skull-base (endoscopic, 120; open/external, 84) and 125 lateral skull-base procedures. Complication rates noted to increase in both groups with increasing complexity of surgical intervention. Anterior skull-base surgery (total complications, 11%; major, 3%; death, 0.5%) noted to have significantly less surgical complications than lateral skull-base surgery (total complications, 33%; major, 15%; death, 1.6%; p < 0.001). Among the anterior procedures no significant difference noted among endoscopic and external approaches when compared across similar surgical complexity. Conclusion Despite improvement in surgical and perioperative care, the overall major complication rate in a contemporary otolaryngology led, primarily extradural, skull-base practice is noted at 8%. Perioperative mortality, though rare, was encountered in 1%. A standard method for categorization of surgical complexity and the grade of complications as reported here is recommended.


BMC Surgery ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Mingguang Ju ◽  
Feng Xu ◽  
Wenyan Zhao ◽  
Chaoliu Dai

Abstract Background Liver resection (LR) and enucleation (EN) are the main surgical treatment for giant hepatic hemangioma (HH), but how to choose the type of surgery is still controversial. This study aimed to explore the efficacy and the factors affecting the choice of open procedure for HH. Methods The data for patients with pathologically confirmed HH who underwent open surgery from April 2014 to August 2020 were analyzed retrospectively. Univariate and multivariate analyses with logistic regression were performed to disclose the factors associated with the choice of EN or LR. Propensity score matching (PSM) analysis was used to compare the efficacy of the two procedures. Results A total of 163 and 110 patients were enrolled in the EN and LR groups. Following 1:1 matching by PSM analysis, 66 patients were selected from each group. Centrally located lesions (OR: 0.131, 95% CI 0.070–0.244), tumors size > 12.1 cm (OR: 0.226, 95% CI 0.116–0.439) and multiple tumors (OR: 1.860, 95% CI 1.003–3.449) were independent factors affecting the choice of EN. There was no significant difference in the median operation time (156 vs. 195 min, P = 0.156), median blood loss (200 vs. 220 ml, P = 0.423), blood transfusion rate (33.3% vs. 33.3%, P = 1.000), mean postoperative feeding (3.1 vs. 3.3 d, P = 0.460), mean postoperative hospital stay (9.5 vs. 9.0 d, P = 0.206), or the major complication rates between the two groups. Conclusions Peripherally located lesions, tumors size ≤ 12.1 cm and multiple tumors were more inclined to receive EN. There was no significant difference in the efficacy of EN or LR.


Blood ◽  
2019 ◽  
Vol 134 (Supplement_1) ◽  
pp. 1412-1412
Author(s):  
Pierre Peterlin ◽  
Joelle Gaschet ◽  
Thierry Guillaume ◽  
Alice Garnier ◽  
Marion Eveillard ◽  
...  

Introduction: Recently, a significant impact of the kinetics of Fms-like tyrosine kinase 3 ligand concentration (FLc) during induction (day[D]1 to D22) has been reported on survivals in first-line acute myeloid leukemia (AML) patients (pts) (Peterlin et al, 2019). Three different FLc profiles were disclosed i) sustained increase of FLc (FLI group, good-risk), ii) increase from D1 to D15, then decrease at D22 (FLD group, intermediate-risk) and iii) stagnation of low levels (&lt;1000 pg/mL, FLL group, high-risk). An update of this prospective monocentric study (www.ClinicalTrials.gov NCT02693899) is presented here evaluating also retrospectively the impact on outcomes of 6 other cytokine level profiles during induction. Methods: Between 05/2016 and 01/2018, 62 AML pts at diagnosis (median age 59 yo [29-71], &lt;60 yo n=33) eligible for first intensive induction were included and provided informed consent. They received standard of care first-line chemotherapy. Serum samples collected on D1, 8, 15 & 22 of induction were frozen-stored until performing ELISA for FL, TNFa, SCF, IL-1b, IL-6, IL-10, GM-CSF. Normal values were assessed in 5 healthy controls. Pts outcomes considered were relapse/leukemia-free (LFS) and overall (OS) survivals. Results: FLI, FLD and FLL profiles were observed for 26, 22 and 14 pts respectively. A total of 372 samples were assayed for the 6 other cytokines. Median concentrations at D1, D8, D15, D22 for these 6 cytokines were as follows, considering the whole cohort (and healthy donors): TNFa: 0.53, 0, 0, 0 (0); SCF: 5.91, 0, 0, 0 (3); IL-1b : 0, 0, 0, 0 (0); IL-6: 4.85, 16.28, 10.11, 7.1 (0), IL-10: 0, 0, 0, 0 (0) and GM-CSF:1.63, 1.8, 0.67, 1.34 (9.98). Median IL-6 and GM-CSF levels, compared to healthy controls, were respectively higher and lower during induction. No significant difference was observed in terms of median cytokine concentrations at any time when comparing the three FL sub-groups or FLI vs FLD pts. With a median follow-up of 28 months (range: 17-37), FLI and FLD pts show now similar 2-y LFS (62.9% vs 59%, p=0.63) and OS (69.2% vs 63.6%, p=0.70). FLL pts have a significantly higher rate of relapse (85,7% vs FLI 19,2% vs FLD 32%, p=0,0001). Comparing FLL vs FLI+FLD pts disclosed significantly different LFS (7.1% vs 61.1%, p&lt;0.001) but not OS (36.7% vs 66.6%, p=0.11). In univariate analysis, 2y LFS and OS were not affected by the concentration (&lt; or &gt; median) of the 7 cytokines studied except for LFS and GM-CSFc at D8 (p=0,04) and D15 (p=0,08), for LFS and FLc at D1 (p=0.06), D8 (p=0,03), D15 (p=0,04) and D22 (p=0,03) and for OS and GM-CSF at D15 (p=0.08). A significant association between LFS was observed with ELN 2017 risk stratification (2-y LFS: favorable: 68,1% vs intermediate: 48,1% vs unfavorable: 30,7%, p=0.03) but not OS (2 y: 77% vs 55,5% vs 46,1%, p=0.09). Multivariate analysis showed that no factor was independently associated with OS while LFS remained significantly associated with the FLc profile (FLL vs others, HR: 5.79. 95%CI: 2.48-13.53, p&lt;0.0001) and GM-CSF at D15 (HR: 0.45; 95%CI: 0.20-0.98, p=0.04) but not with ELN 2017 risk stratification (p=0.06). Cytokine levels were then assessed to try to better discriminate FLI and FLD pts. A significant higher IL-6 level at D22 was found in relapsed or deceased FLI/FLD pts (median:15,34 vs 5,42 pg/mL, p=0,04). FLI/FLD pts with low IL-6 at D22 (&lt; median, 15.5 pg/mL, n=35 vs n=14 with high level) had significant better 2y LFS and OS (74,2% vs 38,4%, p=0,005 and 77,1% vs 38,4%, p=0,009, respectively). A new prognostic risk-stratification could thus be proposed, i.e. FLI/FLD with IL-6 &lt;15.5 pg/mL (favorable), FLI/FLD with IL-6 &gt;15.5 pg/mL (intermediate) and FLL (unfavorable). This new classification was considered for a second multivariate analysis, showing that it is the strongest factor associated with OS (p=0.006, ELN p=0.03, FL profile p=0.04) and LFS (p&lt;0.0001, ELN p=0.005, GM-CSFc D15 p=0.03) (figure 1). Conclusion: This study confirms stagnation of low FLc during AML induction as a strong poor prognosis factor. Moreover, IL-6 levels at D22 further discriminate FLI/FLD pts. Thus, a new cytokine-based risk-stratification integrating FL kinetics and IL-6 levels during induction may help to better predict outcomes in first-line AML patients. These results need to be validated on a larger cohort of AML patients while anti-IL-6 therapy should be tested in combination with standard 3+7 chemotherapy. Figure 1 Disclosures Peterlin: AbbVie Inc: Consultancy; Jazz Pharma: Consultancy; Daiichi-Sankyo: Consultancy; Astellas: Consultancy. Moreau:Janssen: Consultancy, Honoraria; Amgen: Consultancy, Honoraria; Takeda: Consultancy, Honoraria; AbbVie: Consultancy, Honoraria; Celgene: Consultancy, Honoraria. Chevallier:Jazz Pharmaceuticals: Honoraria; Incyte: Consultancy, Honoraria; Daiichi Sankyo: Honoraria.


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e15040-e15040 ◽  
Author(s):  
Xiang Jing ◽  
Jianmin Ding ◽  
Jibin Liu ◽  
Yandong Wang ◽  
Fengmei Wang ◽  
...  

e15040 Background: The efficacy and safety of radiofrequency ablation (RFA) have been reported in the literatures, which are considered as frontline choice for treatment of liver cancer. Recently, microwave ablation (MWA) has emerged and gained great attention over RFA. However, in comparison to RFA, the safety of MWA for treatment of liver cancer has not been fully reported in the literatures. Studies with large clinical data sets are still needed to understand the technique and avoid the complications. The objective of this study was to retrospectively investigate the common complications of thermal ablations of liver tumors using both RFA and MWA techniques, and compare the safety between these two procedures. Methods: This retrospective study protocol was approved by our institutional ethics committee to allow investigators to review the existing patient’s medical records. A total of 879 patients with hepatic tumors underwent thermal ablation. There were 323 cases having the RFA procedures and 556 cases having MWA procedures. The complications of thermal ablations of liver tumors were compared using both RFA and MWA techniques. Results: A total of 1,030 thermal ablation sessions was performed in 879 patients with a total of 1,652 tumors. There were 323 patients with 562 tumors received a total of 376 RFA with averaged 1.16±0.48 sessions per patient. The other 556 patients with 1,090 tumors received a total of 654 MWA with averaged1.18±0.51 sessions per patient. The mortality rates were 0.31% (1/323) and 0.36% (2/556) in RFA and MWA group. In RFA and MWA group, the major complication rates were 3.5% (13/376) and 3.1% (20/654) (Table 1), meanwhile the minor complication rates were 5.9% (22/376) and 5.7% (37/654). There was no statistical significant difference for the mortality rates, the major complications, the minor complications between the RFA and MWA groups (P>0.05). Conclusions: Thermal ablation therapy in the treatment of liver cancers is relatively safe with low mortality and low incidence of serious complications. The types and incidences of complications caused by RFA and MWA are similar and comparable for safety consideration in clinical settings.


2017 ◽  
Vol 79 (02) ◽  
pp. 151-155 ◽  
Author(s):  
Aileen Wertz ◽  
Todd Hollon ◽  
Lawrence Marentette ◽  
Stephen Sullivan ◽  
Jonathan McHugh ◽  
...  

Objective We aimed to compare major complication rates in patients undergoing open versus endoscopic resection of olfactory neuroblastoma (ONB) and to determine the prognostic utility of the Kadish staging and Hyams grading systems with respect to progression-free survival (PFS) and overall survival (OS). Methods It is a retrospective review of experience in treating ONB at a single tertiary care hospital from 1987 through 2015. Major complications were defined as cerebrospinal fluid (CSF) leak, meningitis, osteomyelitis, tracheostomy, and severe neurologic injury. Results Forty-one patients were included. An open approach was used in 34 (83%), endoscopic in 6 (15%), and combined in 1 (2%) case. Rates of major complications by surgical approach were 17% after endoscopic versus 31% after open (p = 0.65). There was no significant difference in PFS or OS based on Kadish B versus C (PFS, p = 0.28; OS, p = 0.11) or Hyams grade 1 and 2 versus Hyams grade 3 and 4 (PFS, p = 0.53; OS, p = 0.38). Conclusions There was no significant difference in major complications between open and endoscopic approaches for the treatment of ONB. Patient stratification using the Kadish staging and Hyams grading systems did not show significant differences in PFS or OS. Further research is needed to determine if a different staging system would better predict patient outcomes.


2021 ◽  
Vol 108 (Supplement_9) ◽  
Author(s):  
Geraint Herbert ◽  
Charlotte Thomas

Abstract Background It has been widely reported that the COVID-19 pandemic has had a detrimental impact on waiting lists for elective surgery in the NHS. Delays in laparoscopic cholecystectomy (LC) are likely to prolong suffering for symptomatic patients and risk increasing complications for patients which may then require emergency care and intervention. In this study we aim to quantify the impact of the COVID-19 pandemic on elective waiting lists and to assess what implications this might have on patient care and outcomes.  Methods Electronic health records were retrospectively interrogated for patients undergoing LC in both March 2019 (prior to the COVID-19 pandemic) and March 2021. The following data was captured: age, gender, elective vs emergency operation, laparoscopic vs open, total vs subtotal cholecystectomy, use of drains, length of stay/daycase rates, the number of emergency presentations prior to operation and the number of days between being listed for surgery and their operation. The results were analysed using SPSS Statistics (IBM, New York).  Results 111 patients were included in the study (25 male and 86 female). Of these, 60 had their LC in 2019, and 51 in 2021. The age and gender distribution of the patients in both time periods were similar. The median number of days on the waiting list was significantly higher (P &lt; 0.001) for patients in 2021 at 379.5 days, compared with 153 days in 2019. There was a significant increase in the number of emergency presentations prior to LC in 2021 (P = 0.025) with an average of 0.7 presentations per patient compared with 0.45 in 2019. Additionally, there was a significant increase in the number of emergency LC performed in 2021 (P = 0.002), with 15 performed compared with 4 in 2019, representing 29.4% and 6.7% of all LC respectively. There was no significant change in rates of conversion to open, drains or subtotal cholecystectomy. There was no significant difference in daycase rates for elective patients in either period (55% vs 58%). Conclusions Whilst there has been no change in the operative outcomes for patients undergoing LC, there has been a stark increase in the length of time patients are on a waiting list prior to undergoing elective LC. This has resulted in a significant increase in the number of emergency presentations and the number of emergency LC performed. This study demonstrates the wider impact of increasing waiting list times beyond the prolonged suffering of symptomatic patients. A significant reduction in waiting list times would be beneficial to both patients and healthcare providers, with the aim of reducing the number of emergency presentations. A reduction in these would have a positive impact on acute services and on the associated cost implications.  


2019 ◽  
Vol 33 (1) ◽  
pp. 18-26
Author(s):  
Susan Griffin ◽  
Leigh McGrath ◽  
Gregory T. Chesnut ◽  
Nicole Benfante ◽  
Melissa Assel ◽  
...  

Purpose The purpose of this paper is to determine the impact of having a patient-designated caregiver remain overnight with ambulatory extended recovery patients on early postoperative clinical outcomes. Design/methodology/approach This was a retrospective cohort study of patients undergoing surgery requiring overnight stay in a highly resourced free-standing oncology ambulatory surgery center. Postoperative outcomes in patients who had caregivers stay with them overnight were compared with outcomes in those who did not. All other care was standardized. Primary outcomes were postoperative length of stay, hospital readmission rates, urgent care center (UCC) visits within 30 days and perioperative complication rates. Findings Among patients staying overnight, 2,462 (57 percent) were accompanied by overnight caregivers. In this group, time to discharge was significantly lower. Readmissions (though rare) were slightly higher, though the difference was not statistically significant (p=0.059). No difference in early (<30 day) complications or UCC visits was noted. Presence of a caregiver overnight was not associated with important differences in outcomes, though further research in a less well-structured environment is likely to show a more robust benefit. Caregivers are still recommended to stay overnight if that is their preference as no harm was identified. Originality/value This study is unique in its evaluation of the clinical impact of having a caregiver stay overnight with ambulatory surgery patients. Little research has focused on the direct impact of the caregiver on patient outcomes, especially in the ambulatory setting. With increased adoption of minimally invasive surgical techniques and enhanced recovery pathways, a larger number of patients are eligible for short-stay ambulatory surgery. Factors that impact discharge and early postoperative complications are important.


2018 ◽  
Vol 31 (Supplement_1) ◽  
pp. 105-105
Author(s):  
Anantha Madhavan ◽  
Nicola Wyatt ◽  
Charlotte Boreham ◽  
Alexander Phillips ◽  
S Michael Griffin

Abstract Background Oesophageal cancer incidence has increased over the last decade in the UK, particularly in older patients. Surgery, with or without perioperative chemotherapy, remains the gold standard treatment for patients with potentially curable disease. Currently, 41% of new cases of oesophageal cancer are in patients aged over 70. However, only 10% underwent surgery compared to 25% of those aged under 70. Concerns exist that advanced age may prejudice treatment decisions. The aim of our review is to evaluate the impact of age on outcomes in those undergoing planned curative treatment for oesophageal cancer. Methods A retrospective review of patients undergoing oesophagectomy for carcinoma between 2006 to 2016 at a single institution was performed. Patients were divided into two cohorts based on age at the time of diagnosis; under 70 years (Group A) and over 70 (Group B). Patients underwent a standardised staging protocol and treatment was decided by a multi-disciplinary team. Oesophagectomy was performed using a transthoracic approach with two field lymphadenectomy and perioperative chemo (radio) therapy used in those patients with locally advanced disease who were fit enough. Results There were 555 patients in Group A and 241 in Group B. Adenocarcinoma was the prevalent histological subtype in both cohorts: 76% (423) in Group A and 68% (165) in Group B. Median age at the time of diagnosis was 62 in Group A versus 74 in Group B. In Group A, 12% (18/343) did not receive neo-adjuvant treatment for locally advanced cancer versus 47% (101/212) in Group B (P < 0.001). Median hospital stay was longer in Group B (18 v 15 days P = 0.02). There was no significant difference in hospital mortality (Group A 1% vs Group B 2.4% P = 0.37) and major complication rate (Group A 14% vs Group B 20% P = 0.31). Two-year survival was 66% (adenocarcinoma) and 78% (SCC) in Group A compared to 60% (adenocarcinoma) and 64% (SCC) in Group B. Conclusion These results demonstrate that patients over 70 can be treated successfully with minimal additional risk to morbidity and mortality. However, these patients are more likely to be denied neoadjuvant treatment which may compromise their long-term outcomes. Disclosure All authors have declared no conflicts of interest.


2018 ◽  
Vol 36 (6_suppl) ◽  
pp. 698-698
Author(s):  
Matthew D. Ingham ◽  
Ross Erik Krasnow ◽  
Matthew Mossanen ◽  
Ye Wang ◽  
Adam B. Althaus ◽  
...  

698 Background: Increasing cardiovascular disease has led to increases in the patient population on anti-platelet therapy who require urologic surgery. We sought to study perioperative outcomes for those undergoing partial nephrectomy (PN) while taking or not taking perioperative aspirin (pASA). Methods: A retrospective review of those undergoing PN was performed on the Premier Hospital Database from 2003 to 2015, with survey projection weighting resulting in a cohort of 10,807 patients. Two groups were formed – those continued on pASA (group 1, n = 774) and those with no pASA (group 2, n = 10,033). In-hospital complication rates were studied: major bleeding, overall transfusion, day-of-surgery transfusion, prolonged ( > 4 days) length of stay (LOS), and prolonged ( > 285 minutes) operative time. We also assessed 90-day rates of: cardiovascular catastrophe, readmission, major complication, and DVT/PE. Unadjusted rates were calculated for all PN patients and further subdivided into open and minimally invasive PN. Adjusted odds ratios (OR) were then calculated between groups 1 and 2. Results: Group 1 was older (58% vs 38% ≥65 years, p < 0.0001), largely male (73.1% vs 58.7%, p = 0.001), and less healthy (34.8% vs 18.4% with a CCI score ≥2, p = 0.003) than to group 2. For in-hospital outcomes, no significant differences were noted. Stratifying by surgical approach, those in group 1 undergoing minimally invasive PN were slightly less likely to require a day-of-surgery transfusion (OR 0.29, CI [0.05-0.99], p < 0.05). For 90-day outcomes, group 1 were far more likely to suffer a cardiovascular catastrophe (OR 7.56, CI [3.38-16.92], p < 0.001) regardless of surgical approach. Conversely, group 1 was slightly less likely to experience readmission (OR 0.48, CI [0.24-0.94], p < 0.05) and was likely driven by those undergoing minimally invasive PN. Conclusions: This large review of academic and community hospitals provides insight into the impact perioperative ASA has on PN outcomes. As noted, in-hospital outcomes were largely equivalent between groups while 90-day cardiovascular catastrophe rates were much higher in the ASA group. Despite this, this study lends support to the belief that pASA should not be considered an absolute contraindication to PN.


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