Ultrasonographic versus Fluoroscopic Access for Percutaneous Nephrolithotomy: A Meta-Analysis

2015 ◽  
Vol 95 (1) ◽  
pp. 15-25 ◽  
Author(s):  
Kun Wang ◽  
Peijin Zhang ◽  
Xianlin Xu ◽  
Min Fan

Objective: To assess the safety and efficacy of ultrasonographic vs. fluoroscopic access for percutaneous nephrolithotomy (PCNL). Methods: Medline (PubMed), Embase, Ovid, Cochrane, and the Chinese Biomedical Literature databases were searched to identify clinically controlled trials (CCTs) and randomized controlled trials (RCTs) that compared ultrasonographic access with fluoroscopic access for PCNL. RevMan 5.1 software and Stat Manager V4.1 software were used for the meta-analysis. Results: Five RCTs and nine CCTs were included in our study, which contained a total of 3,019 patients. Of these, 1,574 (52%) had undergone ultrasonographic access, and 1,445 (48%) had undergone fluoroscopic access. The pooled results revealed that the ultrasonographic access patients had shorter duration of access (min) by 2.56 min (weighted mean difference (WMD) = −2.56, 95% confidence interval (CI): −4.40 to −0.72, p = 0.006). There was a higher stone-free rate in the ultrasonographic access group (odds ratio (OR) = 1.26, 95% CI: 1.02-1.55, p = 0.03), as well as a lower rate of operative complications (OR = 0.72, 95% CI: 0.56-0.93, p = 0.01), reduced intraoperative blood loss (ml) (WMD = −14.55 ml, 95% CI: −27.65 to −1.46, p = 0.03), and a lower rate of blood transfusion requirement (OR = 0.39, 95% CI: 0.24-0.63, p = 0.0001). Sensitivity and subgroup analyses were also performed. Conclusion: Except for no radiation exposure, our meta-analysis revealed that ultrasonographic access had many advantages, such as a shorter access time, reduced intraoperative blood loss, a lower rate of operative complications, a lower rate of blood transfusion, and a higher stone-free rate. Because of these significant advantages, we recommend the use of ultrasonographic access for PCNL.

2021 ◽  
Vol 49 (1) ◽  
pp. 030006052098313
Author(s):  
Tie Mao ◽  
Na Wei ◽  
Jing Yu ◽  
Yinghui Lu

Background We aimed to compare the efficacy and safety of laparoscopic pyelolithotomy (LPL) versus percutaneous nephrolithotomy (PCNL) for treating renal stones larger than 2 cm. Methods We searched the PubMed, Embase, Web of Science, SinoMed, and Chinese National Knowledge Infrastructure databases for studies that compared the surgical outcomes of LPL and PCNL. We conducted a meta-analysis of the retrieved studies, expressed as weighted mean difference or risk ratios with 95% confidence intervals. Results We included 25 studies (1831 patients). LPL was associated with a significantly higher stone-free rate, lower rates of blood loss, complementary treatment, blood transfusion, and complications, and less reduction in hemoglobin level compared with PCNL. LPL and PCNL were similar in terms of duration of hospital stay, conversion rate, changes in glomerular filtration rate and creatinine level, and mean time of postoperative analgesia. However, LPL was associated with a longer operation time than PCNL. Conclusion LPL appears to be more effective and safer than PCNL in patients with large renal stones, by increasing the stone-free rate and reducing blood loss, complementary treatment, blood transfusion, and complications compared with PCNL. LPL may thus be a useful modality for treating patients with large renal stones.


Author(s):  
Jia Jiang ◽  
Ran Zhou ◽  
Bo Li ◽  
Fushan Xue

Abstract Background Deliberate hypotension has been shown to reduce the intraoperative bleeding and the need for allogeneic blood transfusion, and improve the surgical field, but there is still controversy on its clinical safety. This systematic review was designed to assess the safety and benefits of deliberate hypotension for orthopedic surgery. Methods The review met the requirements of the PRISMA guidelines. The Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, CINAHL, ISI Web of Science, ScienceDirect, and four Chinese databases (China National Knowledge Infrastructure, Wanfang, vip citation database, and updated version of China Biology Medicine disc from January 1, 2000 to January 1, 2019) were searched. All parallel randomized controlled trials comparing the effects of using deliberate hypotension with not using deliberate hypotension on clinical outcomes of patients undergoing orthopedic surgery were selected. The primary outcome was overall mortality. The secondary outcomes were the intraoperative blood loss, blood transfusion volume, and serious adverse postoperative events. Results A total of 30 studies with 36 comparisons (1454 participants) were included in meta-analysis. Two studies with 120 participants reported overall mortality and the result was zero (low-quality evidence). The use of deliberate hypotension reduced the intraoperative blood loss (mean difference, − 376.7; 95% CI − 428.1 to − 325.3; I2 = 94%; 29 studies, 36 comparisons, and 1398 participants; low-quality evidence) and blood transfusion volume (mean difference, − 242.5; 95% CI − 302.5 to − 182.6; I2 = 95%; 13 studies, 14 comparisons, and 544 participants; low-quality evidence). Six studies with 286 participants reported the occurrence of serious adverse postoperative events and the result was zero (low-quality evidence). Subgroup analyses according to age groups, controlled mean artery pressure levels, types of orthopedic surgeries, different combinations of other blood conservative method, and hypotensive methods mostly did not explain heterogeneity; significant differences were identified in almost all subgroups. Conclusions Based on the available evidence, it is still unclear whether or not deliberate hypotension is a safe technique for orthopedic surgery due to limited studies with very small sample size, though it may decrease the intraoperative blood loss and blood transfusion volume irrespective of age groups, controlled mean artery pressure levels, types of surgeries, hypotensive methods, or different combinations of other blood conservation strategies. Trial registration PROSPERO CRD42016045480.


2020 ◽  
Vol 28 (2) ◽  
pp. 94-104
Author(s):  
Liang Sun ◽  
Rui Guo ◽  
Yi Feng

Background: Tranexamic acid (TXA) has been widely used during craniofacial and orthognathic surgery (OS). However, results of the literature are inconsistent due to specific type of surgery and a small sample of studies. The purpose of this study was to evaluate the role of TXA in bimaxillary OS. Methods: We performed a comprehensive literature search of PubMed, Cochrane Central Register of Controlled Trials, and EMBASE to identify randomized controlled trials (RCTs) that compared effect of TXA on bimaxillary OS with placebo. Outcomes of interests included intraoperative blood loss, allogenic transfusion, operation time, and volume of irrigation fluid. Random effects models were chosen considering that heterogeneity between studies was anticipated, and I 2 statistics were used to test for the presence of heterogeneity. Results: Totally 6 RCTs were identified. Tranexamic acid resulted in significantly reduced intraoperative blood loss (weighted mean difference [WMD] = −264.82 mL; 95% CI: −380.60 to −149.04 mL) and decreased amounts of irrigation fluid (WMD = −229.23 mL; 95% CI: −399.63 to −58.83 mL). However, TXA had no remarkable impact on risk of allogenic blood transfusion (pooled risk ratio = 0.50; 95% CI: 0.20-1.23), operation time (WMD = −8.71 min; 95% CI: −20.98 to 3.57 min), and length of hospital stay (WMD = −0.24 day; 95% CI: −0.62 to 0.14 day). No TXA-associated severe adverse reactions or complications were observed. Conclusions: Currently available meta-analysis reveals that TXA is effective in decreasing intraoperative blood loss; however, it does not reduce the risk of allogenic blood transfusion in bimaxillary OS.


2021 ◽  
Author(s):  
Hong Zhao ◽  
Jun-Sheng Li ◽  
Li Li ◽  
Hang Wang ◽  
Yi Miao ◽  
...  

Abstract Purpose: To evaluate the aspects affecting transfusion following percutaneous nephrolithotomy (PCNL).Background: From 2016 to 2019, 665 patients underwent PCNL for removal of renal calculi in our center. Complications, including hemorrhages, have been reported. Twenty-three patients (3.5%) have received a blood transfusion and twelve (1.9%) were treated by hyper-selective embolization. We focus on the influencing factors related to postoperative blood transfusion. The factors analyzed were (age, sex, hypertension, diabetes, serum creatinine level, preoperative hemoglobin, and use of anticoagulants or antiplatelet medications); renal and stone factors (previous surgery, abnormal anatomy, stone side, stone burden, stone type); and surgical features: (access number, the calyx of puncture and stone-free rate). These data were analyzed for the presence of bleeding.Results: Among individual factors, preoperative hemoglobin level (P<0.001), and urinary infection (P<0.001) were significantly correlated with blood transfusion. Among renal and stone factors, only previous history of open surgery was significantly correlated with blood transfusion (P<0.05). Stone type or stone burden does not correlate with transfusion. There was also no statistically significant correlation between surgical features and bleeding, and a lower stone-free rate reported for transfusion group.Conclusion: The obtained results demonstrated that PCNL is a safer surgery in a high volume center, but anemic conditions, infections and history of open surgery will significantly increase transfusion rate following PCNL.


2021 ◽  
pp. 1-7
Author(s):  
Ahmed El-Sakka ◽  
Abdelnaser Elgamasy ◽  
Karim Sallam ◽  
Mohamed G. Soliman

<b><i>Objective:</i></b> This study aimed to evaluate the efficacy of our counter-irrigation technique versus the standard technique in percutaneous nephrolithotomy (PCNL) by assessment of the stone-free rate after the procedures and its safety in terms of comparing the intraoperative time, Hb deficit, blood transfusion, length of hospital stay, auxiliary procedures, and perioperative complications with that of the standard one. <b><i>Methods:</i></b> This prospective randomized trial was conducted on patients with renal stone 2–3 cm in diameter without contraindications to PCNL. The patients were randomized into group A in which the counter-irrigation technique has been performed and group B who were managed by the standard technique. The preoperative characteristics including demographic data and stone parameters were compared between both groups. The primary outcome was the stone-free rate assessed by noncontrast spiral CT after 3 months. The secondary outcome included intraoperative time, Hb deficit, blood transfusion, hospital stay, auxiliary procedure required, and rate of complications. <b><i>Results:</i></b> Forty-eight patients were included in this study. Overall, no significant difference was observed between both groups regarding preoperative characteristics, Hb deficit, and complication rate. Operative time was significantly shorter in group B (<i>p</i> = 0.001). None of our patients required blood transfusion. The stone-free rates at 3 months were significantly better in group A (95% for group A and 70% for group B, <i>p</i> = 0.04). <b><i>Conclusions:</i></b> Our results indicate that our counter-irrigation technique has lower stone migration with subsequent significantly better stone-free rate versus the standard technique. We can recommend this technique as a potentially valid option for cases with large stone burden when the access to the upper calyx is feasible to minimize significant residual fragments.


2020 ◽  
Vol 4 (11) ◽  
pp. 381-385
Author(s):  
Ramandita Duta Dewangga ◽  
Tarmono Djojodimedjo ◽  
Dyah Erawati

This study purpose to analyze the differences in the effectiveness of PCNL and open surgery in patients with staghorn stones. We searched the literatures from PubMed and ScienceDirect from year 2005 until 2020. The method used in this study was a systematic review with a quantitative statistical approach (meta-analysis) using primary research data. From 4 studies there were 148 cases of PCNL and 98 cases of open surgery. PCNL had lower postoperative stone-free rate than open surgery (OR 0.168). PCNL had a lower final stone-free rate than open surgery (OR 0.603). The number of patients who had complications with PCNL was lower than open surgery (OR 0.451). The number of patients receiving blood transfusions on PCNL was lower than for open surgery (OR 0.494). Patients who received PCNL procedure required a shorter hospital stay than open surgery (MD -3,234). The number of patients who received additional therapy modalities on PCNL was lower than open surgery (OR 1.917). The conclusions obtained in this study indicate that there are differences in the effectiveness of PCNL and open surgery for patients with staghorn stones. Keywords: percutaneous nephrolithotomy; open surgery; staghorn stone


2021 ◽  
pp. 155335062110418
Author(s):  
Runpei Deng ◽  
Xueyang Huang ◽  
Yonglin Xiao ◽  
Lei Meng ◽  
Jun Wang

Objective. To investigate the efficacy and safety of the oblique supine lithotomy during percutaneous nephrolithotomy (PCNL) to treat upper urinary calculi. Methods. Clinical data were retrospectively analyzed for 371 patients with upper urinary calculi who underwent PCNL at The First Affiliated Hospital of Guangzhou University of Chinese Medicine from January 2017 to October 2020. Based on different positions, patients were divided into the observation group (oblique supine lithotomy position, 155 cases, Group 1) or control group (prone position, 216 cases, Group 2). Groups were compared for effectiveness, complications, bleeding, surgical time, clinical indicators, and hospitalization time. Results. There were no significant differences in the clinical baseline data between the two groups ( p > .05). However, the stone-free rate for patients was significantly higher in the observation than in the control group ( p < .05). Both operation time and hospital stay time were significantly lower in the observation versus the control groups ( p < .05). No significant differences were observed for complications or amount of blood loss ( p > .05). Conclusion. In patients with upper urinary calculi, percutaneous nephrolithotomy in the oblique supine lithotomy position has a higher stone-free rate than the prone position. This approach can shorten the operation and provide better comfort and quicker recovery to the patients. A further advantage is that there is no difference in safety and blood loss between the prone position and the oblique lithotomy position.


BJS Open ◽  
2021 ◽  
Vol 5 (Supplement_1) ◽  
Author(s):  
Amanda Koh ◽  
Alfred Adiamah ◽  
Dhanny Gomez ◽  
Sudip Sanyal ◽  
Amanda Koh

Abstract Introduction Perioperative bleeding is a major risk during and after surgery, which can result in increased mortality and morbidity. Tranexamic acid (TXA) in the setting of trauma, minimises perioperative bleeding and its associated risks. However, there is a lack of evidence of its use in elective abdominal surgery. This meta-analysis of randomised controlled trials (RCTs) evaluated the effectiveness and safety of TXA in elective extrahepatic abdominal surgery. Method A comprehensive search of Pubmed, Embase, and Clinicaltrial.gov databases was undertaken to identify RCTs from January 1947 to May 2020. The primary outcomes of intraoperative blood loss, and the secondary outcomes of need for perioperative blood transfusion, thromboembolic events, and mortality were extracted from included studies. Quantitative pooling of data was based on the random effects model. Results Nineteen studies reporting on 2205 patients were included. TXA reduced intraoperative blood loss (weighted mean difference (WMD) -188.35mL; 95% CI -254.65 to -121.72) and the need for perioperative blood transfusion (odds ratio (OR) 0.43; 95% CI 0.28 to 0.65). Importantly, TXA had no impact on the incidence of thromboembolic events (OR 0.49; 95% CI 0.18 to 1.35). There were no reported deaths in any of the studies. Conclusion TXA reduces intra-operative blood loss without an increase in complications.


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