Biomedical subjects
Publications and source records attributed to H Johanet.
The learning curve for utilization of the voice-controlled AESOP Robot security apparatus for laparoscopic procedures is short. A short experience and the first trials suggest that this security apparatus could allow better intra operative ergonomics, the practice of solosurgery or telementoring. The high cost requires a homogeneous and dense practice in laparoscopic surgery.
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Ambulatory surgery has been organized and regulated in France since 1991. We report the organisation of this activity in our unit and the results in 22,476 patients. Endoscopies, not specifically surgical, were 25.7% of procedures. Over night hospitalization was needed in 3.1% of patients, including about 40% of them for social and familial conditions or follow up of diagnosis or therapeutic sequences. This rate is growing, because we developed diagnosis or therapeutic sequences for interest of the patient. Since 1994, we operated more patients in ambulatory surgery than in classical hospitalization.
Bleeding after needle liver biopsy (NLB) is well known but surgical hemostasis in these circumstances is rarely assessed. We report 7 cases of laparotomy for hemostasis after NLB. The 7 NLB were done for 6 diffuse hepatopathies and one focal lesion. Three patients had hemostasis disorders at the time of the biopsy. None had cirrhosis. Five patients were operated few hours after the biopsy. Direct hemostasis was performed in 6 cases and in hepatectomy in one. Two patients were reoperated for three repeated hemostasis. Two died. The occurrence of hemoperitoneum after NLB is very rare but serious, occasionally occurring a few days after the biopsy. The respect of contre-indications and technical precautions are the best prevention of this kind of accident.
Surgical gloves constitute part of the most exposed barrier material, as one half of accidental exposures to blood in the exposures to blood in the operating room involve the hands. Approximately 15% of gloves tested at the end of the operation were found to be perforated. Double gloving lowers this rate to 5% with apparently acceptable tolerance for surgeons. Although surgical glove are initially impermeable to various viruses, the porosity increases with the duration of use. This porosity is related to hydratation and deformation of latex fibres. The maintenance of a good barrier function of surgical gloves requires regular changing, at least hourly, in the current state of knowledge.
The laparoscopic approach to inguinal hernia repair remains controversial. The authors report the results of 790 repairs performed during the first four years of their experience. The complication rate requiring surgical revision was 1.39%. None of these complications was related to the transpreperitoneal approach and all but one of them occurred during the first two years of the authors' experience. The recurrence rate for patients with a follow-up of more than two years was 5.01%. With experience, the size of the meshes has gradually increased. The authors' experience suggests that all types of hernia can be treated via this approach and that the recurrence rate makes this technique competitive compared to the results of other techniques reported in the literature.
Since 1993, we have performed laparoscopic inguinal hernia repair by ambulatory surgery. We report the population of patients with inguinal hernia operated in this way from the first case operated by ambulatory surgery to May 1, 1996. The aim of this prospective and non controlled trial was to present the organization of our day care department and to report the results of our experience, comparing the ambulatory and hospitalized population, identifying the reasons why we decided to operate on an inpatient basis, assessing the rate and the reasons why the patient was kept the night after an initially scheduled ambulatory procedure. Four hundred and thirty three consecutive cures were operated during this period. 53.6% of patients were operated by ambulatory surgery, 89.4% of whom returned home at night. The reasons for an inpatient procedure were: bilateral repair in 25.2% of cases, medical in 16.4%, surgical in 20%, social in 13.5% of cases. The unilateral nature of the repair and the young age of the patients were two factors which led us to chose ambulatory surgery.
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A multicentric prospective trial was conducted to evaluate the frequency and kind of blood exposure in operating room. From march to june 1992, 3554 procedures were observed in 22 surgical units (visceral, orthopaedic and vascular), with 129 surgeons, 133 residents and 216 nurses. Statistic analysis was done on Epi Info 5 (CDC Atlanta) and EGRET (Statistic and Epidemiology Research Corporation, Seattle). 11.7% of procedures were the case for an incidental blood exposure: 4.2% for percutaneous exposure; 8.4% for cutaneous or mucosal exposure. Rates change with the surgical specialty. Surgeons were involved in 50.7% of percutaneous exposure and 58.7% of the cutaneous or mucosal exposures, especially when they were operators (respectively 2 and 5.6% person-act). A significative rate was founded between incidental blood exposure and the length of procedure, the sepsis character of the procedure, but not with emergency or number of globular units transfused. To diminish the incidental blood exposure and its risks, this data suggests three kinds of practice: a better work for vaccination; in our study 59% of surgeons declare an adequate vaccination against hepatitis B; a best operative hygiene, with knowing of risks factor of blood exposure, depending of the kind of procedure, changing between different units; the use of protections: non coated dressing, double gloving, ocular protection.
A retrospective study was conducted to evaluate the impact of laparoscopic surgery on activity in general and digestive surgery. From May 1990 to December 1994, 2256 laparoscopic procedures were performed for cholecystectomy (36%), appendicectomy (20.4%) or inguinal hernia (19.8%). 23.2% of all procedures performed in 1994 were done laparoscopically. The use of laparoscopy did not, in our experience, added any new indications from 1988 to 1994. The conversion rate was 8.15%. 24% of the conversion cases could not be predicted. Mortality was 0.18% and 1.19% of the patients had to undergo a second operation due to complications of laparsocopic surgery. The impact of laparoscopic procedures, 7 years after the first laparoscopic cholecystectomy has been great. The results of this surgical technique must be evaluated to determine its medical and economic impact.
A case of bilateral truncal vagotomy and antrectomy for pyloric stenosis is presented. Other procedures for laparoscopic treatment of peptic ulcer disease are discussed.
Leiomyomas are the common est benign tumors of the esophagus and most of them are located in the lower third. Dysphagia and vague pain are the most frequent symptoms. However, 50% of the patients remain asymptomatic and the tumor is often discovered incidentally. Operative management by transthoracic enucleation is the procedure of choice but for asymptomatic forms, this remains controversial. In addition, gastro-esophageal reflux frequently coexists with an esophageal leiomyoma and the therapeutic indications are not well defined for such situations. We report 3 cases of esophageal leiomyoma situated in the lower third, with emphasis on the operative management by transhiatal enucleation, particularly in case of coexisting gastro-esophageal reflux. This procedure avoids thoracotomy and the surgical treatment of the associated gastro-esophageal reflux is much easier by this approach than with thoracotomy.
Mesch insertion is a reliable means for repairing inguinal hernias. Results in 162 patients treated laparoscopically via an intraperitoneal approach are reviewed herein. Analgesics were not required after the first postoperative day in 71% of patients. Fourteen patients were treated on a day-care basis. There were two recurrences due to inadequate fixation of the mesch to Cooper's ligament. The two patients who developed an infection did not require removal of the patch and had a strong, completely healed wall at the follow-up evaluation after four and ten months, respectively. The number of patients and duration of follow-up are still inadequate. However, these preliminary data warrant continued use and evaluation of this technique.
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After appendectomy, mechanical obstruction of the small intestine is often due to local bands. This type of obstruction is classically treated by median laparotomy. We present ten cases of such obstruction treated via the initial gridiron incision, whose advantages are discussed.
Surgical feeding gastrostomy is attended by a significant morbidity and mortality. Today, the percutaneous endoscopic route is regarded as the best method, but it is not feasible in case of pharyngo-oesophageal stenosis and has its own drawbacks. A new method using laparoscopy to perform a Depage-Janeway gastrostomy is presented here. The theoretical advantages of this method are clear: the limited parietal damage should avoid cicatricial complications, and the limited ventilatory aggression should reduce the amplitude of respiratory complications. Moreover, in surgical practice this is a simple, rapid and efficient operation.
From May 1st 1983 to March 1st 1991, 126 laparotomies were performed on 104 patients infected by human immunodeficiency virus (HIV). We report the operative indications, macroscopic findings, anatomopathologic and microbiological results, and hospital mortality in this population. In 12.5% of cases, infection by HIV was established after operation. Sixty-eight percent of patients presented criteria for AIDS. The population was divided into 4 groups of indications: Group I: 30 patients had an emergency exploratory laparotomy. Laparotomy provided a diagnosis in 80% of cases, with a hospital mortality in 66%. Group II: 45 patients had an emergency laparotomy with a preoperative diagnosis. Hospital mortality was 24.4%. Group III: 29 patients had a non-urgent laparotomy with no mortality. Group IV: 14 patients were reoperated (22 laparotomies). For the entire population, hospital mortality was 9.3% for seropositive patients and 38.8% for AIDS patients.
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