Characterization of multidrug-resistant Klebsiella pneumoniae from Australia carrying blaNDM-1

bla_NDM genes, encoding metallo-β-lactamases providing resistance to carbapenems, have been reported in many locations since the initial report in 2008, including in several Enterobacteriaceae isolates in Australia/New Zealand. Here, we compare 4 additional carbapenem-resistant Klebsiella pneumoniae carrying bla_NDM-1 isolated in Australia. Two are sequence type ST147, previously associated with bla_NDM in Australia and elsewhere. They carry bla_NDM-1 and different 16S rRNA methylase genes (armA or rmtC) on different conjugative plasmids, in 1 case with an IncFII_Y replicon. One isolate belongs to the globally important ST11 but did not transfer a plasmid to Escherichia coli. The fourth isolate belongs to the novel ST1068 and transferred bla_NDM-1, armA, and an IncA/C plasmid. Amplification and sequencing of ompK porin genes suggest that, unlike the case for other carbapenemase genes, ompK36 defects may not be required for NDM to cause clinically relevant levels of carbapenem resistance.     

Robot-assisted radical cystectomy and urinary diversion in female patients: technique with preservation of the uterus and vagina

BACKGROUND: After performing more than 500 robotic radical prostatectomy and robotic radical cystoprostatectomy in men, we attempted to develop the technique of robot-assisted radical cystectomy in women. This article describes two techniques of robot-assisted radical cystectomy for women, conventional and with preservation of the uterus and vagina. To the best of our knowledge, this is the first case series of robot-assisted radical cystectomy and urinary diversion in women. STUDY DESIGN: Robot-assisted radical cystectomy was undertaken in three female patients with transitional cell carcinoma of the urinary bladder. The operation was performed with the conventional anterior approach in one patient and with a new technique in two patients, which allows preservation of urethra, uterus, vagina, and both ovaries. As planned, the radical cystectomy was done robotically, using the da Vinci Surgical System (Intuitive Surgical). The bladder was entrapped in an Endocatch bag and removed through a small subumbilical incision. Urinary reconstruction was performed extracorporeally after exteriorizing the bowel through the incision used for retrieving the specimen. In two patients, the reconstructed pouch was placed in the pelvis and the abdominal incision was closed. Urethroneovesical anastomosis was done robotically, using a technique described previously for men. RESULTS: The average operating time for the robotic radical cystectomy was 160 minutes and the mean operating times for ileal conduit and orthotopic neobladder were 130 minutes and 180 minutes, respectively. The mean blood loss was less than 100 mL. The mean number of lymph nodes removed was 12 (range 3 to 21). Surgical margins were free of tumor in all three patients. CONCLUSIONS: This approach incorporates advantages of minimally invasive and open surgery. Performing the radical cystectomy with the robot allows precise and rapid removal of the bladder with minimal blood loss. Extracorporeal reconstruction of the urinary tract reduces operative time at this stage of evolution of laparoscopic and robotic instrumentation. In the future, with the development of technology, instrumentation, and with additional refinement of our technique, the entire procedure may be done completely intracorporeally with equal efficiency.     

Who should lead a healthcare organization: MDs or MBAs?

Debates often arise about who is best suited to manage a healthcare organization. Therefore, we argue that an examination of the ability of healthcare organizations' chief executive officers (CEOs) to make strategic decisions is warranted. Is the most appropriate leader the medically educated CEO, whose training in patient care allows him or her to be most cognizant of the quality-of-care needs of the organization? Or is it the managerially educated CEO, whose training makes him or her most aware of the organization's financial needs? This article presents a study involving senior managers from two integrated healthcare organizations. The study revealed that no significant differences exist between medically educated and managerially educated senior managers in their ability to make strategic decisions that maximize the net income or the quality of care of the healthcare organization. The debate that pits the "MDs" against the "MBAs" is misdirected. Characteristics other than educational degree appear to have a stronger influence on a CEO's ability to make successful strategic decisions. Therefore, candidates' educational background should not play such an important role in the processes for selecting CEOs.     

Natural Orifice-Assisted Laparoscopic Appendectomy

Background and Objectives:

Natural orifice transluminal endoscopic surgery involves the introduction of instruments through a natural orifice into the peritoneal cavity to perform diagnostic and therapeutic surgical interventions. We report the utilization of the vaginal opening at the time of laparoscopic-assisted vaginal hysterectomy or total laparoscopic hysterectomy as a natural orifice for appendectomy.

Methods:

We reviewed cases of 42 patients who underwent total laparoscopic hysterectomy or laparoscopic-assisted vaginal hysterectomy followed by appendectomy, performed by applying a stapler and removing the appendix transvaginally. By using a small-diameter laparoscope, the appendix was mobilized, especially in patients with adhesions, endometriosis, or retrocecal appendix, to facilitate transvaginal access with the stapler.

Results:

All procedures were performed successfully without intraoperative or major postoperative complications. The appendectomy portion of the procedure took approximately 5 minutes to 10 minutes. Appendiceal pathology included serosal adhesions (14), fibrous obliteration of the lumen (12), endometriosis (4), serositis (2), and carcinoid tumor (1), among others.

Conclusions:

Appendectomy performed with an endoscopic stapler introduced transvaginally for amputation and retrieval following total laparoscopic hysterectomy or laparoscopically assisted vaginal hysterectomy appears to be a safe and effective modification of established techniques with acceptable outcomes.