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  • 1995-1999  (2)
  • 1960-1964
  • Gastroesophageal reflux disease  (1)
  • Inferior vena caval blood flow  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 9 (1995), S. 151-155 
    ISSN: 1432-2218
    Keywords: Laparoscopy cost-effectiveness ; Laparoscopic Nissen fundoplication ; Cost analysis ; Gastroesophageal reflux disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Surgical treatment of gastroesophageal reflux disease is increasingly recognized as a costeffective alternative to long-term medical therapy. This fact, coupled with the advent of laparoscopic fundoplication as a safe and efficacious alternative to open surgery, underscores the importance of determining the costs associated with laparoscopic treatment. Hospital costs and charges of patients undergoing open (N=9) and laparoscopic (N=11) fundoplication were retrospectively analyzed. Both procedures were performed during the same time period (6/91–6/93), at the same hospital, and by the same surgical team. Operative time, and hospital stay, were recorded in addition to total, operating room, anesthesia, sterile supplies, and hospital room charges. Figures are reported as mean values ± standard error of the mean. The Wilcoxon signed rank test was used for comparison of groups. Operative time (221±18 vs 165±12 min, P=0.033) was longer in the laparoscopic group, while hospital stay (5.8±02 vs 8.8±04 days, P〈0.001) was significantly shorter. Total hospital costs were similar for both groups of patients ($14,615±863 vs $15,891±921, P=0.247). Overall hospital charges were nearly identical ($26,634±1376 vs $27,189±1753, P=0.803). A detailed analysis demonstrated cost shifting, with laparoscopic fundoplication resulting in significantly higher charges associated with events in the operating room. Operating room ($6,064±252 vs $4,283±380, P=0.001), sterile supplies ($6,214±508 vs $5,403±390), and anesthesia charges ($1,593±76 vs $1,122±95, P〈0.001) were all greater in the laparoscopic group. This was offset by significantly lower hospital-room charges following laparoscopy ($5,098±355 vs $6,983±511, P=0.006). Laparoscopic Nissen fundoplication is not more expensive than its open counterpart. At present, laparoscopy results in higher operating-room charges which offsets savings from a shorter hospital stay. Improvements in technique and attention to limiting the cost of sterile supplies may ultimately result in a cost savings in favor of laparoscopy.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 10 (1996), S. 920-924 
    ISSN: 1432-2218
    Keywords: Cardiac hemodynamics ; CO2 pneumoperitoneum ; Inferior vena caval blood flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: The effects of carbon dioxide pneumoperitoneum on venous return and cardiac hemodynamics during laparoscopic surgery were studied. Methods: Twelve adult pigs underwent placement of an electromagnetic flow meter across the infrarenal vena cava (IVC) as well as placement of Swan Ganz and arterial monitoring catheters. Measurements of the flow through infrarenal IVC, cardiac output (CO), pulmonary capillary wedge pressure (PCWP), mean arterial pressure (MAP), and heart rate were recorded at baseline, 5 and 60 min following insufflation to 15 mmHg with CO2, and 5 min following desufflation. Stroke volumes and systemic vascular resistance (SVR) were calculated as well. Results: Flow through the IVC dropped by 24 and 31% at 5 and 60 min (p=0.03 and 0.02, respectively). Paradoxically, cardiac output rose by 14 and 28% at 5 and 60 min (p=0.03 at 60 min). Central venous and pulmonary capillary wedge pressures rose transiently by 35 and 36% at 5 min before returning to baseline (p〈0.01). Mean arterial pressure and heart rate remained relatively constant during insufflation. Systemic vascular resistance diminished from 938 dynes/cm/s prior to insufflation to its nadir at 60 min of 650 dynes/cm/s (p〈0.01). Conclusions: These observations suggest potentially complex interactions between the mechanical and systemic effects of the CO2 pneumoperitoneum on venous return. Transient elevations in cardiac filling pressures occur by an unknown mechanism, and a generalized enhanced inotropic state mediated via increased sympathetic outflow is observed in this hypercapnic anesthetized animal model.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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