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Airborne contamination during cardiopulmonary bypass: the role of cardiotomy suction.

Airborne contamination of the wound area and the cardiopulmonary bypass circuit during sham open-heart operations on dogs was studied. The air of the operating room (OR) was contaminated with two typeable bacterial strains. It was found that the number of wounds, blood specimens, oxygenators, and cardiotomy reservoirs contaminated with Staphylococcus aureus was related to the number of S. aureus present in the air of the OR, but that contamination with Serratia marcescens was related to the type of suction used. This form of contamination was considerably higher when air was aspirated together with blood into the suction line (p less than 0.05). The oxygenator and cardiotomy reservoir were contaminated mainly by aspirating wound fluid from the airborne-contaminated wound area. The low number of sample sites positive for S. marcescens may be due to a better preserved host defense mechanism if only wound fluid is sucked. A rather high incidence of postoperative infections occurred even in dogs operated on in an OR with a low level of airborne contamination.

Air Microbiology↗

A new urethrotome with permanent suction.

The introduction of a new sight urethrotome with permanent suction now makes a continuous rinsing stream possible. A sight improvement similar to that of the suction resectoscope is achieved and complications common to the transurethral resection syndrome are reduced.

Humans↗

Suction biopsy of rectal mucosa in the diagnosis of infantile and juvenile types of neuronal ceroid lipofuscinoses.

Rectal mucosa obtained by suction biopsy from 17 patients with infantile-type neuronal ceroid lipofuscinosis (NCL) and from 31 patients with juvenile-type NCL was studied histologically and electron microscopically. In specimens from both types of NCL the lamina propria of the mucosa contained abundant large macrophages, demonstrating positive histochemical reactions for ceroid and lipofuscin. On electron microscopy the macrophages were shown to be filled with cytosomes containing the storage material. In infantile NCL the storage material was amorphous and granular, with only occasional short membranous structures. In juvenile NCL the storage material formed approximately equal amounts of curvilinear profiles and fingerprint profiles. Typical inclusions were found in the capillary endothelial cells, Schwann cells, and smooth cells as well as in macrophages in both types of NCL. In two patients juvenile NCL was diagnosed from the biopsy before the appearance of any neurologic symptoms. It is concluded that morphologic investigation of the easily obtained rectal suction biopsy specimen is a reliable diagnostic method in these types of NCL. It is also useful in screening non-symptomatic patients at risk for NCL and in follow-up studies, when necessary.

Age Factors↗

Retrograde suction decompression of paraclinoid aneurysm--a revised technique.

BACKGROUND: Aneurysms of the ophthalmic segment of the carotid artery are difficult lesions to handle. Batjer and Samson described the technique of suction decompression of the aneurysm by inserting a needle and aspirating blood from the internal carotid artery in the neck. However, this method carries a risk of arterial dissection and distal embolization. METHOD: We describe a revised technique for suction decompression of paraclinoid aneurysms. The method makes use of the anatomical advantage of the carotid bifurcation. Instead of direct clamping of the internal carotid artery, we isolated the common and external carotid arteries and decompressed the aneurysm via the external carotid artery. We also saved the aspirated blood for autotransfusion. RESULTS: We have used this technique in two elderly patients with good results. CONCLUSION: This technique avoids dissection of the internal carotid artery and minimizes the risk of embolization.

Blood Loss, Surgical↗

Closed tracheal suctioning systems and infection control in the intensive care unit.

Closed tracheal suction catheters offer a number of microbiological advantages over the conventional single-use suction catheters. Intensive care staff, however, have experienced difficulties such as pooling of the catheter irrigation saline within the connectors, and hand contamination from condensate which escapes via the irrigation port. Using a descriptive survey design we quantified how frequently these problems occurred. Over an eight-week period, staff completed 923 survey forms. Hand contamination from condensate was reported in 61% of responses. Rinsing the catheter after use was ineffective in 39% of responses, and 70% reported pooling of the saline in the swivel and ventilator connectors. Forty-five percent of responses reported ineffective secretion removal. The infection implications for clinical practice are discussed.

Catheterization↗

Recommendations for reducing risks of infection associated with suction collection procedures.

It is recognized that risks are incurred when health care workers contact various body fluids. The handling of suction collection equipment poses a risk because it is one way workers may come in contact with these fluids. Minimizing the risks associated with suction procedures can be accomplished if appropriate policies and procedures can be developed in health care facilities.

Cross Infection↗

Axillary lymphadenectomy prepared by fat and lymph node suction in breast cancer.

AIMS: To describe a new technique of axillary dissection and evaluate the results. METHODS: Axillary lymphadenectomy prepared by fat and lymph node suction was performed on 43 patients with breast cancer and uninvolved axilla on physical examination. The mean follow-up was 18 months (range 12-27). After lipolysis and liposuction of the axilla, lymph node dissection was performed by axilloscopy in patients treated with conservative surgery. For patients undergoing modified radical mastectomy, a mastectomy with open axillary dissection was carried out. The axillary space was drained until less than 20 ml of lymphorrhea was being produced per day. Seventeen modified radical mastectomies (group M) and 26 lumpectomies (group L) were performed. RESULTS: No injury of muscles, vessels or nerves was observed. An average of 13.6 lymph nodes (8-31) were removed. In group L, the mean number of lymph nodes removed by liposuction, axilloscopy and control incision was 2.5, 5.4 and 4.2, respectively. In group M, the mean number of lymph nodes removed was 14. None of the 589 lymph nodes examined showed any pathological trauma. Fourteen patients (32%) had more than one histologically positive node. The mean quantity of lymphorrhea was 390 ml in group M and 275 ml in group L. The mean duration of drainage was 6 days in group M and 5 days in group L. Four patients had seromas which required punctures. Two patients had shoulder restriction (movements < 90 degrees) at 12 months. No arm oedema was seen. CONCLUSIONS: Axillary lymphadenectomy prepared by fat and lymph node suction is a reliable and effective procedure. However, it does not appear to be better than standard dissection as regards post-operative complications, except for arm oedema, but this must be confirmed by further studies.

Adult↗

Arthroscopic intra-articular biopsy using a suction trap device.

Biopsy of the synovium and other intra-articular structures is frequently performed arthroscopically. We describe a technique of arthroscopic biopsy using a suction punch device linked in series with a Lukens tube suction trap. This technique allows for the controlled biopsy of intra-articular pathology, collects material in a tube which is convenient for handling, prevents the loss of biopsy material in the joint or portal tracks, and saves time by limiting the number of instrument passages into the joint.

Arthroscopes↗

A comparative study of closed-wound suction drainage vs. no drainage in total hip arthroplasty.

One hundred consecutive primary total hip arthroplasties performed by the same surgeon over 4 years were retrospectively reviewed. In the first 50, closed-suction drains were used; the following 50 were not drained. Comparison between the two groups revealed no statistically significant differences in wound problems, postoperative pyrexias, or other short-term complications. No wound infections occurred. A mean of 2.6 units of blood per patient was transfused to the nondrained group. In the drained group, a mean of 3.4 units of blood per patient was transfused. This difference was not statistically significant. The mean postoperative fall in haemoglobin concentration was 2.4 g/dl in the nondrained group, and 1.9 g/dl in the drained group. This difference was not statistically significant. This study demonstrated no advantage to the use of suction drains in uncomplicated total hip arthroplasty, and perhaps their routine use should be questioned.

Adult↗

Intraoperative and early postoperative results of suction posterior capsulorhexis.

PURPOSE: To report the intraoperative complications and early postoperative visual results of suction posterior capsulorhexis (SPC). SETTING: Ophthalmology department of a district general hospital, Kent, United Kingdom. METHODS: This prospective observational study included all patients having phacoemulsification who required SPC as a planned procedure or because of posterior capsule tears (128 eyes of 122 patients). All patients were under the care of a single consultant. Intraoperative complications related to the SPC as well as postoperative complications and best corrected visual acuity (BCVA) in all cases and with best-case analysis (patients with preexisting ocular comorbidity excluded) were noted. RESULTS: Seven cases (5.5%) of vitreous prolapse occurred; none was specifically related to the SPC. A BCVA of 0.67 (6/9) or better was achieved in 94% of cases (100% of best cases). One retinal detachment (0.8%) occurred 8 months postoperatively that was successfully treated with no loss of BCVA. CONCLUSION: Suction posterior capsulorhexis had a low rate of intraoperative complications and did not adversely affect the early visual outcome.

Aged↗

Severe iridodialysis from phacoemulsification tip suction.

During cataract surgery, the iris of an 83-year-old woman was strongly sucked into the phacoemulsification tip twice, resulting in severe iridodialysis. The dehisced iris was sutured to the sclera using double-armed 10-0 polypropylene on a long curved needle. Intensive suction of the iris by the phacoemulsification tip can lead to severe iridodialysis. Machine setting parameters, particularly flow rate, should be lowered after the first iris suction to avoid further iris damage.

Aged↗

Less invasive off-pump CABG using a suction device for immobilization: the 'Octopus' method.

OBJECTIVE: Target site immobilization is essential to enable meticulous anastomosis suturing during coronary artery bypass grafting on the beating heart. A novel device ('Octopus') was developed for local heart muscle immobilization by suction. The purpose of this study was to investigate the efficacy of the method through a limited access. METHODS: The suction device, placed on either side of the recipient coronary artery and fixed to the operating table-rail through an arm construction, restrains anastomosis site motion to 1 x 1 mm. A total of 27 patients underwent off-pump arterial bypass grafting using this method. Preoperatively, all patients had angina class III (NYHA) and were failed or unsuitable candidates for balloon angioplasty. Surgical access was via a 10-cm anterior thoracotomy (n = 26) or 10-cm subxiphoid incision (n = 1). RESULTS: Harvesting of the graft required 48 +/- 12 min (mean +/- S.D.). Immobilization with the 'Octopus' was effective and facilitated precise anastomosis suturing of 20 single and 7 sequential grafts. Immobilization did not change cardiac index and mean arterial blood pressure. During coronary surgery, however, inotropic drug support was used in 5 of 27 (18%) of patients. There was no myocardial infarction. Only minor transient complications were met. There were electro-cardiographical signs of pericarditis in 6 patients. The postoperative hospital stay ranged from 2 to 6 days, mean 4.0 +/- 1.2 days. The mean follow-up is 6.5 +/- 4 months (range, 1-12 months). All patients except one were in functional class I without angina. Social activities were resumed within 4 weeks. At 6 months angiography was performed in 15 out of 27 patients. The patency rate of 19 out of 20 anastomoses was 95%. All distal grafts were patent. One side to side anastomosis was occluded. CONCLUSIONS: The 'Octopus' immobilization method is safe and effective. It facilitates less invasive CABG in selected patients and gives way to fast recovery by reducing invasiveness.

Adult↗

Bowel injury by the suction-irrigator during operative laparoscopy.

Bowel injury is common during operative laparoscopy, yet injury by the suction-irrigator has never been reported to our knowledge. Any injury to the sigmoid colon by suction-irrigator occurred during intestinal retraction. Primary repair was performed through minilaparotomy incision. In addition to the potentially damaging effect of the instrument, a firm, distended, and unprepared bowel was a leading factor in this injury. We recommend that all patients have bowel preparation before operative laparoscopy, and that great care be taken for all surgical manipulations, even when employing traditionally atraumatic instruments.

Abdominal Muscles↗

The cytological diagnosis of nasopharyngeal carcinoma from exfoliated cells collected by suction method. An eight-year experience.

A specially designed metallic tube, which is connected to a suction-pump and passed through the oral cavity into the nasopharynx for collecting exfoliative cells by negative pressure suction, is recommended in the diagnosis of nasopharyngeal carcinoma (NPC). From the beginning of 1973 through October 1976, among 458 cases of NPC, 405 cases were cytologically positive (with a positive rate of 88.4 per cent), and 433 cases were biopsy positive (with a positive rate of 94.3 per cent). In 1977, from January to October, among 116 cases of NPC, 103 cases were cytologically positive (with a positive rate of 88.8 per cent), and 108 cases were biopsy positive (with a positive rate of 93.1 per cent). The cytopathological features of the exfoliative NPC cells were correlated with the histopathological types of NPC. The degree of lymphocytic infiltration among the cancer cells in smears was compared with that in biopsies. They coincided roughly with each other. It indicates that one might interpret the immunological lymphocytic reaction by the number and typing of lymphocytes in smears too. The authors conclude that this cytological method is fairly dependable, less traumatic to the mucosa, convenient, and easily managed. A large number of tumor cells can be collected. It can also reflect the histologic typing of cancer cells. It can be used as a routine procedure in the clinico-pathological diagnosis of NPC, as well as in a mass screening program.

Cytological Techniques↗

A modified Guedel airway for continuous oxygenation and suctioning during fibreoptic bronchoscopy.

We describe a modification to the Guedel airway that improves suction and oxygenation during fibreoptic bronchoscopy. The entire roof of a Guedel airway was removed. Two 2.5-mm internal diameter tracheal tubes were inserted into the modified airway to allow continuous oxygen delivery and suction throughout fibreoptic bronchoscopy. It was tested as a single-use device in ten patients undergoing awake fibreoptic bronchoscopy under sedation and topical anasthesia. During the procedure there were no problems with either fogging of the lens or secretions in the pharynx. In addition, oxyhaemoglobin saturation, as monitored continuously by pulse oximetry, was >/= 97% in all patients.

Bronchoscopy↗

The practice and perception of intensive care staff using the closed suctioning system.

Tracheobronchial suctioning using the closed suctioning system (CSS) has physiological benefits for critically ill patients. Despite these benefits, nurses have raised concerns about the CSS. The aims of this study were to identify concerns, count how frequently they occurred and examine the relationship between the concerns and the experience of the operators. Experience was defined as length of time working in an intensive care unit (ICU) and length of time using the CSS. Using a field research approach, six major concerns were identified: showering of condensate from the flush port over the hands of staff; difficulty cleansing the inner tube after use; ineffective secretion removal; disconnecting the CSS to use conventional catheters; 'sticking' of the CSS in the endotracheal tube; and possible tracheal trauma as observed by blood stained secretions. Based on these findings, a data collection form was developed and over an 8-week period, 75 staff completed 923 forms. The findings indicated that although these concerns occurred frequently (up to 66% of the time), there was no relationship between their frequency and the experience of the operator. The study concludes that, if used appropriately, the advantages of CSS outweigh the disadvantages. Policies and guidelines should be developed to redress issues of secretion removal and infection risks to maximize effectiveness of the CSS for critically ill patients.

Bronchi↗