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pneumoperitoneum effects

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https://www.readbyqxmd.com/read/29457191/variation-in-intraocular-pressure-caused-by-repetitive-positional-changes-during-laparoscopic-colorectal-surgery-a-prospective-randomized-controlled-study-comparing-propofol-and-desflurane-anesthesia
#1
Kwon Hui Seo, Yong-Shin Kim, Jindeok Joo, Jin-Woo Choi, Hong-Soo Jeong, Si-Wook Chung
Laparoscopic surgery is often prolonged and requires positional changes to facilitate surgical access. Previous studies reported intraocular pressure (IOP) changes in one fixed position. This study investigated the effect of desflurane and propofol anesthesia on IOP during repeated positional changes. A total of 46 patients undergoing laparoscopic colorectal surgery were randomized into desflurane or propofol groups. IOP was measured using a handheld tonometer at seven time points: before induction (baseline), after endotracheal intubation, after pneumoperitoneum, after the first Trendelenburg and right tilt position, after reverse Trendelenburg and right tilt position, after the second Trendelenburg and right tilt position and before endotracheal extubation...
February 19, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29441909/the-effect-of-continuous-perfusion-of-esmolol-on-cardiovascular-risk-in-elderly-patients-undergoing-noncardiac-surgery
#2
X K Zhang, Q Hu, Q H Chen, W X Wang
We evaluated the effect of continuous perfusion of esmolol on cardiovascular risk during curative laparoscopic surgery for gastrointestinal cancer in elderly patients. Sixty patients with gastrointestinal cancer, aged from 60 to 80 years, were divided into an esmolol group (ES, n = 30) and a control group (NS, n = 30). ES patients were treated with esmolol at a dose of 0.3 mg/kg 3 min before tracheal intubation, and received continuous perfusion of esmolol at a dose of 50 μg/kg/min during operation. In NS, esmolol was replaced by saline...
August 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29416797/hydrogen-protects-against-liver-injury-during-co2-pneumoperitoneum-in-rats
#3
Mingzi Chen, Lihong Jiang, Yue Li, Ge Bai, Jinghua Zhao, Ming Zhang, Jiantao Zhang
The aim of the current study was to identify the protective effect of hydrogen gas against liver injury during CO2 pneumoperitoneum. Rats were randomly divided into three groups: control group (C group), pneumoperitoneum group (P15 group) and hydrogen group (H2 group). Rats in the C group were subjected to anesthesia for 90 min. Rats in the P15 group received an abdominal insufflation of CO2 for 90 min at an intra-abdominal pressure of 15 mmHg. Rats in the H2 group received a hypodermic injection of hydrogen gas (0...
January 5, 2018: Oncotarget
https://www.readbyqxmd.com/read/29415565/effect-of-mannitol-on-ultrasonographically-measured-optic-nerve-sheath-diameter-as-a-surrogate-for-intracranial-pressure-during-robot-assisted-laparoscopic-prostatectomy-with-pneumoperitoneum-and-the-trendelenburg-position
#4
In-Jung Jun, Myong Kim, Joonho Lee, Se-Ung Park, Jai-Hyun Hwang, Jun Hyuk Hong, Young-Kug Kim
INTRODUCTION: Carbon dioxide pneumoperitoneum and the steep Trendelenburg position during robot-assisted laparoscopic prostatectomy (RALP) can increase the intracranial pressure (ICP). Mannitol is widely used to treat increased ICP. However, no studies to date have specifically evaluated the effect of mannitol on ICP in patients undergoing RALP. Ultrasonographic measurement of the optic nerve sheath diameter (ONSD) is considered a reliable technique to noninvasively evaluate the ICP. Therefore, this study compared ONSDs as a surrogate for ICP before and after mannitol administration in prostate cancer patients undergoing RALP...
February 7, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29394977/bladder-distension-as-a-cause-of-abdominal-compartment-syndrome
#5
Muhammad Yasir, Muhammad Qamarul Hoda, Tauseef Ahmed
Abdominal compartment syndrome (ACS) is increasingly identified in critically ill patient and its harmful effects are well documented. The disparity among the pressure, volume in abdominal cavity and its contents, results in ACS. The actual incidence of ACS is not known. However, it has been observed predominantly in patients with severe blunt and penetrating abdominal trauma, ruptured abdominal aortic aneurysms, retro- and intra-peritoneal hemorrhage, pneumoperitoneum, neoplasm, pancreatitis, ascites and multiple bone fracture...
February 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29382813/acute-hypervolemic-infusion-can-improve-splanchnic-perfusion-in-elderly-patients-during-laparoscopic-colorectal-surgery
#6
Qian-Lin Zhu, Yun-Xin Deng, Bu-Wei Yu, Min-Hua Zheng, Jue Jin
BACKGROUND There is no adequate evidence on how the long duration of laparoscopic surgery affects splanchnic perfusion in elderly patients or the efficacy of acute hypervolemic fluid infusion (AHFI) during the induction of anesthesia. Our aim was to observe the effects of AHFI during the induction of general anesthesia on splanchnic perfusion. MATERIAL AND METHODS Seventy elderly patients receiving laparoscopic colorectal surgery were randomly divided into three groups: lactated Ringer's solution group (group R), succinylated gelatin group (group G), and hypertonic sodium chloride hydroxyethyl starch 40 injection group (group H)...
January 31, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29373874/more-reasonable-animal-model-for-study-the-effect-of-pneumoperitoneum-on-abdominal-tumor-cells
#7
Lv Qijun, Du Jiang, Wang Chongshu
Background: Many animal experimental studies showed that abdominal tumor cells will be widely spread during laparoscopic treatment and grow into metastases. These results are different from clinical observations. There is a hypothesis that too much tumor cells was injected in the animals lead to the results of theses bias. We aim to learn the difference of abdominal cavity volume between human body and the nude mice and to determine reasonable amount of tumor cells in the animal experiments. Methods: The insufflated CO2 volume which represents the capacity of the abdominal cavity was recorded during laparoscopic process in 212 patients and 20 nude mice respectively, the relative volume of nude mice and human body was calculated...
January 27, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29360997/novel-regenerative-therapy-combined-with-transphrenic-peritoneoscopy-assisted-omentopexy
#8
Satoshi Kainuma, Kiyokazu Nakajima, Shigeru Miyagawa, Satsuki Fukushima, Atsuhiro Saito, Akima Harada, Masashi Hirota, Yasuhiro Miyazaki, Noriyoshi Sawabata, Tadashi Watabe, Hiroshi Watabe, Koichi Toda, Jun Hatazawa, Meinoshin Okumura, Yoshiki Sawa
OBJECTIVES: We previously reported that cell sheet transplantation combined with an omentopexy (OP) procedure is more effective for repairing heart damage when compared with cell sheet transplantation alone. However, a simultaneous (conventional) laparotomy as part of the OP may adversely affect the general condition of critically ill heart failure patients who would otherwise benefit from cell sheet transplantation, which is a paradox to be reconciled before this treatment can be applied in a clinical setting...
January 18, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29346827/efficacy-and-complications-of-submucosal-tunneling-endoscopic-resection-for-upper-gastrointestinal-submucosal-tumors-and-exploration-for-influencing-factors
#9
Shunzhe Song, Xu Wang, Shen Zhang, Yanxia Li, Xiaonan Zhang, Xufang Chu
BACKGROUND:  Submucosal tunneling endoscopic resection (STER) has emerged as a feasible technique for resecting upper gastrointestinal (GI) tract submucosal tumors (SMTs) through natural orifice transluminal endoscopic surgery. STER reduces the risk of postoperative perforation and abdominal infections and promotes rapid wound healing. The aim of this meta-analysis was to evaluate the safety and efficacy of STER for small (≤ 3.5 cm) upper GI SMTs and explore the potential factors influencing STER's efficacy and complication rate...
January 18, 2018: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/29291538/tension-pneumoperitoneum-after-bystander-cardiopulmonary-resuscitation-a-case-report
#10
Sherry Johnson, Jessica McCracken, Fadi Baidoun
INTRODUCTION: Abdominal visceral injuries after cardiopulmonary resuscitation (CPR) are infrequent though can be significant complications of CPR requiring invasive interventions. We present a case of a gastric perforation as a result of bystander CPR. This resulted in tension pneumoperitoneum necessitating abdominal decompression prior to laparotomy and repair. PRESENTATION OF CASE: 37-year-old female complained of abdominal pain and distension after return of spontaneous circulation from successful CPR following a drug overdose and cardiopulmonary arrest...
December 12, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29284856/proseal-laryngeal-mask-airway-versus-cuffed-endotracheal-tube-for-laparoscopic-surgical-procedures-under-general-anesthesia-a-random-comparative-study
#11
Suchita Shailesh Parikh, Shivam Bipin Parekh, Chaula Doshi, Varsha Vyas
Context: The Proseal LMA(PLMA), which has been designed especially for positive pressure ventilation and protection against aspiration can act as an alternative to Endotracheal Tube (ETT) as an effective airway device for patients undergoing elective Laparoscopic surgeries. Aims: To compare the efficacy and safety of PLMA with ETT in patients undergoing Laparoscopic surgeries under general anaesthesia. Settings and Design: A prospective, randomized study was conducted in a tertiary care teaching hospital with 60 patients of ASA grade I/II undergoing elective Laparoscopic surgery under general anaesthesia...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29282572/arterioportal-shunting-splanchnic-capillary-perfusion-and-the-effects-of-colloids-during-capnoperitoneum-in-neonatal-and-adolescent-pigs
#12
J F Kuebler, N Schukfeh, G Vieten, W A Osthaus, D Huber, N Dennhard, R Suempelmann, B M Ure, M L Metzelder
BACKGROUND: Clinical and experimental data indicate that neonates are sensitive to the CO2 pneumoperitoneum. An impaired splanchnic perfusion during laparoscopy in adults has been reported. We recently confirmed that intravenous colloids improve macrocirculatory function in neonates. We aimed to determine the impact of CO2 pneumoperitoneum on the perfusion of splanchnic organs in the young including effects of colloid application. METHODS: Male piglets (n = 25) were divided into four groups: (1) neonatal controls, (2) neonates with crystalloid restitution, (3) neonates with colloidal restitution, and (4) adolescents with crystalloid restitution...
December 27, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29275303/effect-of-increased-intra-abdominal-pressure-on-liver-histology-and-hemodynamics-an-experimental-study
#13
Efstathios A Antoniou, Evi Kairi, Georgios A Margonis, Nikolaos Andreatos, Kazunari Sasaki, Christos Damaskos, Nikolaos Garmpis, Mario Samaha, Eriphyli Argyra, George Polymeneas, Matthew J Weiss, Timothy M Pawlik, Dionysios Voros, Gregory Kouraklis
BACKGROUND: While reduction of portal venous (PV) blood flow has been described in animal models of intra-abdominal hypertension, reports on compensatory changes in hepatic arterial (HA) flow, known as the hepatic arterial buffer response are controversial. MATERIALS AND METHODS: Pneumoperitoneum with helium was induced in 13 piglets. Hemodynamic measurements and pathological assessment were conducted at baseline and during the three subsequent phases: Phase A: 45 minutes with a stable intra-abdominal pressure of 25 mmHg; phase B: 45 minutes with a stable intra-abdominal pressure of 40 mmHg; and phase C during which the abdomen was re-explored and reperfusion of the liver was allowed to take place...
January 2018: In Vivo
https://www.readbyqxmd.com/read/29273339/simulation-based-laparoscopic-surgery-crisis-resource-management-training-predicting-technical-and-nontechnical-skills
#14
Mitchell G Goldenberg, Kai H Fok, Michael Ordon, Kenneth T Pace, Jason Y Lee
OBJECTIVES: To develop a unique simulation-based assessment using a laparoscopic inferior vena cava (IVC) injury scenario that allows for the safe assessment of urology resident's technical and nontechnical skills, and investigate the effect of personality traits performance in a surgical crisis. METHODS: Urology residents from our institution were recruited to participate in a simulation-based training laparoscopic nephrectomy exercise. Residents completed demographic and multidimensional personality questionnaires and were instructed to play the role of staff urologist...
December 19, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/29249773/does-pneumoperitoneum-affect-perfusion-index-and-pleth-variability-index-in-patients-receiving-combined-epidural-and-general-anesthesia
#15
Zen'ichiro Wajima, Toshiya Shiga, Kazuyuki Imanaga
Plethysmographic variability index (PVI) is a dynamic index used for the purpose of fluid responsiveness in patients, and the effect of pneumoperitoneum on PVI is still unclear. We therefore attempted to determine whether PVI and perfusion index (PI) change before/after pneumoperitoneum in patients receiving combined epidural and general anesthesia, which is a common anesthesia method with intravenous remifentanil. Twenty patients underwent laparoscopic cholecystectomy or colectomy. Immediately before pneumoperitoneum, variables were measured at baseline I and were then measured every min for 5 min after pneumoperitoneum start...
December 18, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/29208884/role-of-oral-clonidine-premedication-on-intra-operative-haemodynamics-and-ponv-in-laparoscopic-cholecystectomy
#16
M Masud, S Yeasmeen, A K Haque, S Jahan, N C Saha, D Banik
Laparoscopic cholecystectomy is a gold standard surgical procedure for gallbladder operation. It causes altered haemodynamic responses due to pneumoperitoneum and surgical procedure also causes high incidence of postoperative nausea &vomiting. Clonidine has been shown to reduce intraoperative haemodynamic instability. This randomized prospective single blind clinical study was designed to evaluate the efficacy of oral clonidine premedication for attenuation of haemodynamic responses associated with pneumoperitoneum & also reduce the incidence of postoperative nausea & vomiting and carried out in the department of Anaesthesia Analgesia and Intensive care Medicine, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh from January 2010 to June 2010...
October 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29207810/comparative-study-of-the-effect-of-dexmedetomidine-vs-fentanyl-on-haemodynamic-response-in-patients-undergoing-elective-laparoscopic-surgery
#17
Jayshree P Vaswani, Debasis Debata, Varsha Vyas, Surekha Pattil
Introduction: Dexmedetomidine and fentanyl, both have sedative and analgesic effects. They are often used as adjunct during anaesthesia to attenuate pressor response during tracheal intubation. Limited study has been done comparing the effect of both drugs on haemodynamic response in patients undergoing laparoscopic surgery. Aim: The study was designed to compare the effect of dexmedetomidine Vs fentanyl on haemodynamic response to tracheal intubation, following pneumoperitoneum and intraoperative period in patients undergoing laparoscopic surgery...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29196510/necrotizing-enterocolitis
#18
Barrie S Rich, Stephen E Dolgin
Necrotizing enterocolitis (NEC) is a frequently encountered condition in the premature neonate, which can have devastating effects. The signs and symptoms of NEC are variable and can be confused with those of sepsis. An abdominal radiograph is often obtained for diagnosis, and findings that indicate NEC include pneumatosis and portal venous gas. The treatment of NEC includes gastrointestinal rest, gastric decompression, broad-spectrum intravenous antibiotics, and systemic support. A finding of pneumoperitoneum signifies intestinal perforation, which requires surgical intervention...
December 2017: Pediatrics in Review
https://www.readbyqxmd.com/read/29188199/effects-of-25-and-30-degree-trendelenburg-positions-on-intraocular-pressure-changes-during-robot-assisted-radical-prostatectomy
#19
Masatomo Nishikawa, Hiromitsu Watanabe, Tomofumi Kurahashi
Background: The objective of this study was to assess the effects of 25-degree and 30-degree Trendelenburg positions on intraocular pressure (IOP) changes during robot-assisted radical prostatectomy (RARP). Materials and methods: This prospective study involved a total of 30 consecutive patients undergoing RARP. All participants were randomly divided into two groups: Trendelenburg position with the head down at 25 degrees or 30 degrees. In addition to representative operative outcomes, IOP was measured at six discrete time points; Time 1 (T1): before induction of general anesthesia, patients in a horizontal supine position; T2: after induction of general anesthesia, patients in a horizontal supine position; T3: 1 hour after adopting the Trendelenburg position; T4: 2 hours after adopting the Trendelenburg position; T5: after pneumoperitoneum resolution in the Trendelenburg position; T6: anesthetized before awakening in a supine position...
December 2017: Prostate International
https://www.readbyqxmd.com/read/29152942/effects-of-positive-end-expiratory-pressure-on-intracranial-pressure-during-pneumoperitoneum-and-trendelenburg-position-in-a-porcine-mode
#20
Nurdan Bedirli, Gökçen Emmez, Yusuf Ünal, Mehmet Tönge, Hakan Emmez
Background/aim: This study was undertaken to evaluate the effects of positive end-expiratory pressure (PEEP) levels on intracranial pressure (ICP) and cerebral perfusion pressure (CPP) and to determine the appropriate PEEP level during steep Trendelenburg position combined with pneumoperitoneum.Materials and methods: Ten pigs were included in this study. Pneumoperitoneum and Trendelenburg position were maintained and PEEP titration was initiated. Arterial pressure, heart rate, arterial blood gas, ICP, and CPP were recorded at the following time points: baseline (T0), 30 min after positioning and pneumoperitoneum (T1), PEEP 5 (T2), PEEP 10 (T3), PEEP 15 (T4), and PEEP 20 (T5)...
November 13, 2017: Turkish Journal of Medical Sciences
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