Recently, accumulation of knowledge on cerebrovascular microanatomy and its hemodynamics and advances in interventional equipments, especially microcatheters, could make superselective embolization as well as for an adjunctive preoperative procedures The authors performed superselective angiography and embolization with Tracker microcatheter in 25 procedures out of 15 patients with brain arteriovenous malformations (AVMs). Complete embolization was done in 7 prtients (46.7%), nearly complete embolization in 6 patients(40.4%), and partial embolization in 2 patients (13.3%). The overall curative success rate of embolization was 86.7%. Five patients showed no complication at all. Mild complications, however, were observed in 7 patients (46.8%). Severe complications such as AVM or Tracker rupture were observed in 3 patients (20%). In conclusion, superselective embolization is and effective method for the treatment of brain AVMs, and multiple session embolizations could reduce the complication rate and increase the success rate.
Angiography ; Arteriovenous Malformations* ; Brain* ; Hemodynamics ; Humans ; Methods ; Preoperative Care ; Rupture

Adult ; Humans ; Malocclusion, Angle Class III ; therapy ; Orthodontics ; Orthodontics, Corrective ; methods ; Preoperative Care ; methods

With the advances in techniques of localization, numerous minimally invasive parathyroid surgery were developed including open minimal incision and endoscopic approaches. According to the research results and the experiences from Peking Union Medical College Hospital, the indication and preoperative preparation were discussed in this paper. Some suggestions were given for minimally invasive parathyroid surgery in China.
Beijing ; China ; Humans ; Minimally Invasive Surgical Procedures ; Parathyroidectomy ; methods ; Preoperative Care

Carcinoma, Hepatocellular ; physiopathology ; Humans ; Liver ; physiopathology ; Liver Function Tests ; methods ; Liver Neoplasms ; physiopathology ; Preoperative Care

In the past several years of 21 century, there are many updates of concepts on the diagnosis and treatment of colorectal cancer, which indicates the era of experience-based medicine has been gradually replaced by that of evidence-based medicine. Despite emerging evidence from randomized controlled trials(RCT) and meta-analyses questioning its use, concurrent suggestion on the indication of preoperative bowel preparation has not been reached. The authors agree with the opinion of The Huang Jia-si Textbook of Surgery(7th Edition). Preoperative bowel preparation should be emphasized before the consensus is confirmed, though there are so many trials showing that bowel preparation before elective colorectal surgery was unnecessary. In the authors' consideration, compared with the Westerner, the Chinese prefer to the food style of low fat and high cellulose, which would make more food residue. So whether the oversea finding of the preoperative bowel preparation is fit for the colorectal patients in China is questioned. Therefore large-sample, multi-centre, prospective RCT is expected to be carried out by the national academic organization, by which high-ranking evidence suitable for the Chinese could be obtained.
Colorectal Surgery ; Elective Surgical Procedures ; Enema ; adverse effects ; methods ; Humans ; Preoperative Care

A more differentiated therapy regimen for gastric carcinoma requires more precise preoperative staging. In patients with early gastric cancer (EGC), especially mucosa, endoscopic resection (ER) should be performed to avoid unnecessary surgical procedures. To achieve R0 resection for locally-advanced gastric cancer (AGC), neoadjuvant treatments have been investigated. Clinical staging of gastric cancer has been greatly improved by advance in imaging techniques such as endoscopic ultrasonography (EUS), transabdominal ultrasonography (TAUS), multi-slice spiral CT (MSCT), magnetic resonance imaging (MRI), positron emission tomography (PET), combined PET-CT scans, and laparoscopic staging. This review is to summarize the clinical application and the value of preoperative staging in gastric cancer.
Diagnostic Imaging ; methods ; Humans ; Neoplasm Staging ; Preoperative Care ; Stomach Neoplasms ; diagnosis ; surgery

It is necessary to organize and arrange the hair before performing surgery on the scalp. The hair is preserved in most cases, and the remaining hair makes it difficult to apply and maintain the drape. Moreover, hair that has not been properly sterilized can be a risk factor for infection. Accordingly, the authors of the present study benchmarked a method of hair control within the operative field using a sterile gel. Prior to surgery, the hair around the lesion can be organized and rearranged to the desired shape by using a sterile medical gel as a hairstyling product. Subsequently, chlorhexidine-isopropyl alcohol can be used for aseptic skin preparation, followed by draping for surgery. By controlling the hair using this method, hair can be prevented from falling into the operative field, thereby reducing the risk of surgical site infection.
Accidental Falls ; Benchmarking ; Hair ; Methods ; Preoperative Care ; Risk Factors ; Scalp ; Skin ; Surgical Drapes ; Surgical Wound Infection

At present, nasal abnormalities is often classified from different perspectives, such as the alar-columella relationship, nasal base width, and the condition of alar hyperplasia. However, due to the impact of race and region, different people may be applied to different classification methods, resulting in different clinical diagnosis and treatments. So far, there is no unified standard for alar deformity classification to guide clinical treatment. In alar-columella relationship, the retracted ala and the hanging columella, hanging ala and retracted columella are easily confused. According to the classification of nasal base width, it is easy to confuse the alar flare with wide alar base. Therefore, the accurate preoperative evaluation of the nasal ala and the selection of appropriate clinical treatments for different abnormalities are beneficial for surgeons to achieve perfect rhinoplasty results.
Cleft Lip ; Humans ; Hyperplasia ; Nasal Septum/surgery* ; Nose ; Preoperative Care ; Rhinoplasty/methods*

OBJECTIVETo investigate the significance of preoperative MDCT angiography for breast reconstruction with abdominal flap.

METHODSPreoperative MDCT angiography scans were performed on 34 patients who underwent breast reconstruction with abdominal flaps during December 2006 to June 2009. The operation was designed based on the MDCT results. Then the MDCT results were proved intraoperatively. Another 22 cases who underwent breast reconstruction with abdominal flap without preoperative MDCT were selected as controls. The rate of operative method change, the operation time and the flap necrosis were compared between the two groups.

RESULTSThe preoperative design changed in 23.53% of the patients, based on the MDCT results. No one had any method change intraoperatively in the group with MDCT. The operative method was changed intraoperatively in 13.64% of the patients in the control group. The mean time spending on flap harvesting was (2.51 +/- 0.64) h in the experimental group and (4.42 +/- 0.21) h in the controlled group (P < 0.05). The rate of complication was 6.12% in the experimental group and 12.5% in the control group (P = 0.017).

CONCLUSIONSPreoperative MDCT angiography is an easy and reliable method for breast reconstruction with abdominal flap. The preoperative design can be more reasonable. It helps to save the operation time and reduce the risk.

Adult ; Angiography ; methods ; Epigastric Arteries ; diagnostic imaging ; Female ; Humans ; Mammaplasty ; methods ; Preoperative Care ; Surgical Flaps ; blood supply ; Tomography, Spiral Computed

COVID-19/transmission* ; COVID-19 Testing ; Humans ; Infection Control ; Infectious Disease Transmission, Patient-to-Professional/prevention & control* ; Intraoperative Care ; Pandemics ; Personal Protective Equipment ; Postoperative Care ; Preoperative Care ; Tracheostomy/methods*