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Biomedical subjects

A K Meinke

Publications and source records attributed to A K Meinke.

5 recordsLinked to original sources

Totally extraperitoneal laparoendoscopic repair of lumbar hernia.

BACKGROUND: The repair of congenital and acquired lumbar hernias has remained a significant surgical challenge for over three centuries. Transperitoneal laparoendoscopic techniques have been reported that have achieved success in repairing these difficult hernias using a variety of synthetic mesh. Careful review of the surgical literature addressing the repair of lumbar hernia reveals that only fourteen successful cases have been reported using minimally invasive techniques. All of these cases elected a transperitonal approach to repair. Encouraged by established success in the repair of inguinal hernia using an extraperitoneal approach, the repair of a large inferior triangle lumbar hernia was attempted using overlapping synthetic mesh technique while remaining entirely in an extraperitoneal plane. METHODS: A seventy-eight-year-old patient presented for repair of a large symptomatic right lumbar hernia, one year following iliac bone harvest for lumbar laminectomy/fusion. Under general anesthesia, the patient was placed in a lateral decubitus position with lumbar roll in place. Using a muscle splitting dissection through the lateral abdominal musculature, a plane was developed bluntly between the transversalus muscle and the peritoneum. Using a three trocar technique, the plane was matured posteriorly, achieving an ample working space to identify the hernia and complete a synthetic mesh (PTFE) repair. RESULTS: A large inferior triangle lumbar hernia was successfully repaired using overlapping synthetic mesh technique while remaining entirely in an extraperitoneal plane. Eighteen month reevaluation including physical examination and computer tomographic (CT) study confirms successful repair without recurrence of symptoms. CONCLUSIONS: A totally extraperitoneal approach to the identification, mobilization, and repair of lumbar hernia can be successfully accomplished using established laparoendoscopic surgical techniques.

Aged↗

Laparoscopic options in the treatment of splenic artery aneurysms.

BACKGROUND: The retrogastric and often intrapancreatic position of splenic artery aneurysms (SAA) has discouraged many surgeons from attempting the laparoscopic resection of SAA. Only two reports of successful laparoscopically resected SAA have appeared in the surgical literature. METHODS/RESULTS: The successful laparoscopic resection of a large expanding SAA was accomplished using a modification of currently described techniques. CONCLUSIONS: The semilateral decubitus position affords excellent access to the lesser sac, allowing excision of SAA with good visualization of the splenic artery and splenic hilar vessels should splenic hypoperfusion demand splenic resection. Excision of SAA is preferred to ligation except when dense adhesions or intrapancreatic arterial course preclude safe dissection. Pseudoaneurysms from trauma or pancreatitis are likely best treated with intraarterial embolization but significant complications should be expected in this high-risk subset of patients.

Aged↗

An initial evaluation of subcuticular skin closure with absorbable intradermal pins.

A skin-approximating instrument has been developed to facilitate rapid subcuticular skin closure of surgical incisions using intradermally placed absorbable pins. A prospective, randomized, double-blind study was conducted comparing wound healing characteristics of incisions closed using the intradermal pins and those closed using a subcuticular closure with a synthetic braided absorbable suture. Wounds were evaluated for cosmetic effect, closure accuracy, comfort, and speed of closure by the surgeon, an independent observer, and the patient. Incisions closed using both techniques resulted in equally excellent wound healing characteristics. The instrument facilitated a significantly more rapid closure than the characteristically time-consuming technique of sewing by hand.

Double-Blind Method↗

What is the learning curve for laparoscopic appendectomy?

When contemplating converting from open to laparoscopic appendectomy, a prudent surgeon should consider the anticipated learning curve. To evaluate this we reviewed our experience with 20 sequential patients representing this transition. We found the learning curve was brief and did not compromise clinical results. A reduction in hospitalization time without a rise in total hospital costs should encourage the experienced laparoscopic surgeon to consider laparoscopic appendectomy as a viable alternative to standard laparotomy in the resection of the acutely inflamed appendix.

Acute Disease↗

Pancreatic tuberculous abscess.

Pancreatic tuberculous abscess is rare and has been reported only in the past five years. An association with the acquired immune deficiency syndrome (AIDS) is suggested. Extensive drainage and appropriate antibiotic therapy is recommended. Intrapancreatic abscesses should be cultured for M. tuberculosis and, if identified, the patient should be studied for human immunodeficiency virus (HIV) infection.

Abscess↗