Individual psychotherapy. Institutional psychotherapy. Individual approach

In the psychiatric management of patients where the author works the following factors are given careful consideration: a) source of referral, b) previous information about the illness, c) the content of the first session, d) obstacles for further treatment and e) theoretical basis for the psychotherapy sessions. Bellak and Small outlines are followed to structure brief and emergency psychotherapy at the author's institution.     

Individual differences in the selection and use of features for classifying visual stimuli

Two experiments were performed to investigate the classification of pot-like outlines by human judges. In experiment 1, seventy-two pot-like shapes, drawn by using all possible combinations of values of four pot ratios, were classified by twenty subjects and by a computer program. The shapes varied only in quantitative features and possessed no all-or-none characteristics. In experiment 2,256 shapes traced from drawings of existing pots were classified by fifteen judges. The pots varied in both quantitative and all-or-none features. The results showed that there were differences between judges in the weightings they assigned to different features, and the judges themselves could be classified according to the weightings they gave the features. There were even differences in the way different judges used all-or-none features for classifying. Possible mechanisms are suggested for the basis of these differences.     

A population approach to initial dose selection

Before a drug can be marketed, an initial dose must be established. Sheiner et al. argue that a population approach leads to the most informed and rational decision making. We discuss the choice of an initial dose from both a predictive and estimative viewpoint. Our criteria are based upon evaluating the probabilities that a patient from the specified population obtains a response that is at least of a specified size. We demonstrate the approach using a simulation study and compare estimation of population parameters and initial dose using Bayesian and likelihood-based methods.     

Laparoscopic cholecystectomy versus classical cholecystectomy

The authors evaluated the results after classical (CCHE) and laparoscopic cholecystectomies (LCHE) in the period from March 16 1994 to June 30 1995. In this period they operated on 408 patients, out of which 208 were operated by the laparoscopic technique. There were no differences in postoperative morbidity. The mortality after laparoscopic surgery was 0% and the classical cholecystectomy reached the morbidity of 1.4%. Complicated patients were usually operated in the classical way. The time of hospitalisation after LCHE was 5.2 days and after CCHE 8.3 days. The results of LCHE were as follows: morbidity 10.5%, conversions 2.4%, reoperations 1.4%, and no leakage of the bile duct. We saved 40% of costs using LCHE. All these facts show that LCHE is advantageous, secure and well tolerated by patients. The patients prefer comfort after the operation, good cosmetic effect and a short hospital isation. CCHE did not lose its position, especially in complicated cases. (Tab. 5, Ref. 21.)     

Cost-effectiveness of laparoscopic cholecystectomy versus open cholecystectomy

To assess the cost-effectiveness of laparoscopic cholecystectomy versus open cholecystectomy from the payer's perspective, we estimated the probabilities of potential outcomes of each procedure, associated quality-of-life effects, and related direct medical charges and incorporated these estimates into a computerized simulation model. The model projects that laparoscopic cholecystectomy will be more effective than open surgery in terms of total mortality and quality-adjusted survival, for both sexes and all ages. Projected 5-year cumulative charges are lower for laparoscopic cholecystectomy than for open cholecystectomy ($5,354 versus $5,525 for 45-year-old women; $6,036 versus $6,830 for 45-year-old men), and the differences increase substantially with increasing age. We concluded that laparoscopic cholecystectomy is likely to be less costly and more effective than open cholecystectomy for most patients, as long as it does not routinely require preoperative cholangiography and is not associated with increased professional fees or increased risks of retained stones or bile duct injury.     

Individual differences in productivity: An empirical test of estimates derived from studies of selection procedure utility.

A literature review indicates that the standard deviation of employee output averaged 20% of mean output under nonpiecework compensation systems and 15% under piecework systems. For both systems, variability around the mean was small. Implications for selection and workforce productivity are discussed. (25 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Rule selection versus rule execution in preschoolers: An error-detection approach.

In 2 experiments, an error-detection approach was used to determine whether 3-year-olds' perseverative errors on the postswitch phase of the Dimensional Change Card Sort (DCCS) are due to lack of response control or representational inflexibility. In Experiment 1, 3-, 4-, and 5-year-olds watched a puppet sort perseveratively on the postswitch phase and evaluated its responses. Most 4- and 5-year-olds detected the puppet's perseverative errors, whereas most 3-year-olds failed to do so despite detecting errors on a simpler card sort. Experiment 2 revealed that 3-year-olds who failed to correctly evaluate the puppet's behavior tended to fail their own DCCS. Results imply that perseveration on the DCCS cannot be attributed to difficulty inhibiting prepotent motor responses. Instead, changes in rule use between 3 and 5 years of age are interpreted in terms of the development of representational flexibility. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Laparoscopic cholecystectomy in pregnancy

Acute calculus cholecystitis during pregnancy can be a difficult management problem. Two pregnant patients with cholecystitis refractory to conservative management underwent laparoscopic cholecystectomy at a community hospital. One patient was treated under epidural anesthesia. Pregnancy should not be an absolute contraindication to laparoscopic cholecystectomy, and epidural anesthesia should be considered.     

Laparoscopic cholecystectomy in pregnancy

Several recent literature reviews have shown that Laparoscopic cholecystectomy can be performed safely in pregnant females with symptomatic gallbladder disease. We have performed a retrospective analysis of all patients who underwent a cholecystectomy (6,080 patients) from January 1, 1990 until December 31, 1996 at San Pablo Medical Center. Lapa-cholecystecomy was performed in 4,252 (64%) and in the remaining 1,828 (36%) patients, an open cholecystectomy performed. Of the Laparoscopic cases, 5(0.1%) were performed in pregnant females with complicated gallbladder disease(GBD). The diagnosis of GBD was done with an abdominal sonogram. Four of the 5 patients had suffered from gallstones pancreatitis and one acute cholecystitis, prior to the operation. The records of patients were reviewed to secure the following variables, age, pre and post operative course and outcome. Intraoperative cholangiogram performed in 1 patient. No complications were seen in the mother or in the fetus in any of the five cases. Literature was reviewed to assess our reports. Conclusions: Pregnant females with complicated gallbladder disease can be safely managed with Laparoscopic cholecystectomy.     

Job samples: A better approach to selection testing?

Comments on L. R. O'Leary's (see record 1973-25947-001) article on the use of job sample tests as valid predictors of job performance. Problems with O'Leary's presentation involve (1) individual exceptions to probabilistic predictions, (2) his switching of criteria in an example, and (3) his statement that the use of job simulation tests reduces both Type I and Type II errors. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mini-laparoscopic cholecystectomy

BACKGROUND/AIMS: The authors describe their experience in performing cholecystectomy using mini-laparoscopy in selected cases of uncomplicated cholelithiasis. This involved making one 10 mm, one 5 mm and two 2 mm incisions. METHODOLOGY: From July 1996 to August 1997, 60 cholecystectomies were performed using mini-laparoscopy, out of a total of 203 video-laparocholecystectomies performed during the same period. RESULTS: Average length of the operations was 36 minutes from insertion of the first trocar to extraction of the gallbladder. All patients were discharged in the second day after surgery. No short-term intra- or post- operative complications occurred. CONCLUSIONS: The benefits of mini-cholecystectomy are potential advantages in improved appearance, reduced pain, better respiratory function, fewer wall complications. Therefore, the authors believe that mini-laparoscopy should not be assessed in terms of percentage of use or success, but rather considered as a part of the laparoscopic method to be used in selected cases.     

Laparoscopic cholecystectomy

Laparoscopic digestive surgery is right now like a revolution. The author, after a short historic hommage to Raoul Palmer who in 1940 realized the first laparoscopy and also to Philippe Mouret and Fran?ois Dubois who performed the first laparoscopic cholecystectomy in the world in 1987, is doing some comments. The comments are based in the experience of the author who performed in his surgical department about 400 cholecystectomies and another study realized with B. Delaitre on 6512 cases showing a decrease of morbidity however a dramatic increase of biliary complications from 1/1000 to 1% this leads the author to two types of reflexions. One based on technical problem especially in high frequency surgery, the other in training of this new surgical technic and also on rapid extension, sometime anarchistic, of the indications of this new digestive laparoscopic surgery. In conclusion, we have to performed clinical research before doing next applications of laparoscopic surgery and keep in mind the necessity for a new technic to be better for patients.     

Laparoscopic cholecystectomy

Advances in surgical technology have enabled the concept of 'keyhole surgery' to become a reality. The author describes the technique of laparoscopic cholecystectomy and the advantages it offers over conventional methods of surgically removing the gall bladder.     

Laparoscopic cholecystectomy

Traditional cholecystectomy has been the standard surgical treatment of the gallstone disease for more than 100 years. The technical development led to a new surgical procedure and its rapid acceptance. This is laparoscopic cholecystectomy. Its application is becoming widespread in therapy too. But most of the surgeons are lack of technical experiences in this field. Currently it restricts the indications those are anyway the same of standard cholecystectomy. Besides its many advantages, laparoscopic cholecystectomy has its own disadvantages and being an invasive procedure, there are possibilities of complications. The latest can be reduced by the adequate choice of patients, the careful learning of the operative technic and by turning to open surgery (conversion) when it is necessary. Its morbidity is nearly equal to complications of standard cholecystectomy, but mortality rate is lower (0.05-0.2%). Our morbidity of performed 300 laparoscopic cholecystectomies was 6.4%. We had no death. The hospitalization became as short as 4 days. Our early clinical results (90%) are the same of traditional cholecystectomy. Laparoscopic cholecystectomy as a new surgical procedure involves the efficiency of the standard cholecystectomy and the noninvasive endoscopic technic. Laparoscopic cholecystectomy performed by well trained surgeons is a safe surgical procedure, its early results are excellent and makes the choice of surgical treatment, used in bile surgery richer.     

Laparoscopic cholecystectomy in cirrhotic patients

BACKGROUND/AIMS: Laparoscopic and open cholecystectomy are the safest procedures for all diseases related to stones in the gallbladder as they have a low morbidity and mortality rate. However, the safety of laparoscopic cholecystectomy in cirrhotic patients has not been investigated. The goal of this study was to evaluate the safety of laparoscopic cholecystectomy in cirrhotic patients. METHODOLOGY: A retrospective study of laparoscopic cholecystectomy in cirrhotic versus non-cirrhotic patients was performed. Between January 1991 and November 1994, 605 laparoscopic cholecystectomies for symptomatic gallbladder diseases were performed. There were 21 patients in the cirrhotic (group A) and 584 patients in the non-cirrhotic (group B). RESULTS: There was no operative mortality in either group and the postoperative complication rates were 4.8% and 5.8% in group A and B, respectively (p > 0.05). Prolonged operative time in group A was 84.47 +/- 36.01 min vs group B 62.20 +/- 25.37 min (p < 0.01). The estimated intraoperative blood loss in group A was larger than in group B (140.76 +/- 201.19 ml vs 35.02 +/- 50.11 ml, p < 0.01). The readmission rate was higher in group A (9.5%) than in group B (1.37%) (p < 0.05). The hospital stay in group A and B were 4.12 +/- 2.15 D, 3.50 +/- 1.50 D respectively (p > 0.05). The incidence of conversion and re-operation rates indicated no difference between cirrhotic and non-cirrhotic groups. CONCLUSIONS: Laparoscopic cholecystectomy can be safely performed in mild cirrhotic patients with more operative times and meticulous management of intraoperative bleeding.     

Laparoscopic cholecystectomy in The Netherlands

Laparoscopic cholecystectomy was introduced into the Netherlands in the Spring of 1990. The aim of this study was to evaluate the results of the procedure in Dutch hospitals over the first 2 years to obtain some insight into its safety and efficacy in general surgical practice. A written questionnaire was sent to all 138 Dutch surgical institutions enquiring about conversion rate, complications (with emphasis on mortality rate and common bile duct injuries), operating time and hospital stay. The surgeons' opinions were also sought on possible contraindications such as previous operation, bile duct stones and cholecystitis, as were their estimations of the percentage of patients in their practice eligible for laparoscopic cholecystectomy. Data were obtained for 6076 laparoscopic cholecystectomies; the response rate was 100 per cent. Conversion to open cholecystectomy was necessary in 413 patients (6.8 per cent), mostly because of adhesions, cholecystitis, haemorrhage and unclear anatomy. Postoperative complications were reported in 260 patients (4.3 per cent). There were seven deaths (0.12 per cent) and 52 (0.86 per cent) bile duct injuries, of which 20 were recognized during laparoscopy. The mean operating time for the ten most recent patients in each institute was 70 (range 30-180) min and the mean hospital stay 4.5 (range 2-8) days. Previous lower abdominal operations were not considered to be a contraindication by 96 per cent of surgeons, whereas previous upper abdominal procedures were regarded as a contraindication by 66 per cent. After successful clearance of the bile duct at endoscopic retrograde cholangiopancreatography, only 12 per cent would perform an open procedure. Moderate cholecystitis was not considered a contraindication to laparoscopic cholecystectomy by 71 per cent of surgeons, but severe cholecystitis was a reason for open cholecystectomy for 83 per cent. In most surgical practices 70-80 per cent of patients were considered to be eligible for the laparoscopic procedure. In conclusion, laparoscopic cholecystectomy has gained rapid acceptance in the Netherlands. Although the number of bile duct injuries is high, the findings of this general survey are similar to those from highly specialized centres and match the overall results of conventional cholecystectomy.     

Laparoscopic cholecystectomy in acute cholecystitis

Laparoscopic cholecystectomy was fulfilled in 108 patients admitted to the clinic with acute cholecystitis. Operations were made on 73% of them during the first four days from the beginning of the disease, 18.5% were operated upon within 5-7 days, 8.5% - 8 days later. Endoscopic papillotomy with removing the stones from the choledochus was performed in 10% of the patients before operation. Serious problems during taking the gallbladder from the inflammatory infiltration were observed in 29% of the patients. Technical problems took place more often if the patients were operated upon 5 days after the beginning of the disease. Change for open laparoscopy and standard cholecystectomy were necessary in 9 patients (8.3%). There were no lethal outcomes after laparoscopic cholecystectomy. Complications were observed in 12 patients (11.1%). The average period of staying at the hospital was (5.2 +/- 2.1) days. Laparoscopic cholecystectomy can be successfully performed in patients with acute cholecystitis by a sufficiently experienced surgeon.