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Dive into the research topics where Constantine Hatzitheofilou is active.

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Featured researches published by Constantine Hatzitheofilou.


Surgical Endoscopy and Other Interventional Techniques | 2006

Laparoscopic cholecystectomy under spinal anesthesia : A pilot study

George Tzovaras; F. Fafoulakis; Konstantinos Pratsas; Stavroula Georgopoulou; Georgia Stamatiou; Constantine Hatzitheofilou

BackgroundRegional anesthesia has not been used as the sole anesthetic procedure other than in the scenario of a patient at high risk to undergo laparoscopic cholecystectomy with CO2 pneumoperitoneum under general anesthesia.MethodsFifteen ASA grade I or II patients underwent laparoscopic cholecystectomy with low-pressure CO2 pneumoperitoneum under spinal anesthesia. Intraoperative parameters, postoperative pain and recovery in general, as well as patient satisfaction at follow-up were prospectively recorded in a pilot study to assess the feasibility and safety of the procedure.ResultsAll operations were completed laparoscopically and conversion from spinal to general anesthesia was not required in any of the cases. Median pain score 4 h postoperatively was 1.5 (range, 0–5), at 8 h it was 1 (range, 0–6), and at 24 h it was 1 (range, 0–4). All patients were discharged after 24 h. Follow-up 2 weeks postoperatively showed all but one patient to be satisfied and strongly recommending the anesthetic procedure.ConclusionLaparoscopic cholecystectomy with low-pressure CO2 pneumoperitoneum can be successfully and safely performed under spinal anesthesia. Furthermore, it seems that spinal anesthesia is associated with minimal postoperative pain and at least an equally good recovery as with general anesthesia.


American Journal of Surgery | 2009

Is there a role for drain use in elective laparoscopic cholecystectomy? A controlled randomized trial

George Tzovaras; Paraskevi Liakou; Frank Fafoulakis; Ioannis Baloyiannis; Dimitris Zacharoulis; Constantine Hatzitheofilou

BACKGROUND Although the issue of drain use in open cholecystectomy has been adequately addressed by prospective randomized trials, there is lack of evidence on the usefulness of drains in elective laparoscopic cholecystectomy, and the surgeons follow their beliefs and bias on this debate. Therefore, a controlled randomized trial was designed to assess the value of drains in elective laparoscopic cholecystectomy. METHODS During a 5-year period (January 2002 to December 2006), 284 patients were randomized to have a drain placed (group A), whereas 281 patients were randomized not to have a drain (group B) placed in the subhepatic space. End points of this trial were to detect any differences in morbidity, postoperative pain, and hospital stay between the 2 groups. RESULTS There was no mortality in either group and no statistically significant difference in morbidity or hospital stay between the 2 groups. However, postoperative pain was significantly increased in patients who had a drain placed; median visual analog scale (VAS) score was 5 (range 1 to 8) versus 3 (range 1 to 8), in the non-drained group (P < .0001). Interestingly, in 2 of 3 patients in whom a drain was placed against randomization because of bile leak suspicion, a bile leak occurred. CONCLUSIONS The routine use of a drain in elective laparoscopic cholecystectomy has nothing to offer; in contrast, it is associated with increased pain. It would be reasonable, however, to leave a drain if there is a worry about an unsolved or potential bile leak, bearing in mind that drain placement, although sometimes providing a false sense of security, does not guarantee either prevention or treatment of postoperative bile collections, bleeding, or bile peritonitis.


Archives of Surgery | 2008

Spinal vs General Anesthesia for Laparoscopic Cholecystectomy: Interim Analysis of a Controlled Randomized Trial

George Tzovaras; Frank Fafoulakis; Kostantinos Pratsas; Stavroula Georgopoulou; Georgia Stamatiou; Constantine Hatzitheofilou

OBJECTIVE To compare spinal anesthesia with the gold standard general anesthesia for elective laparoscopic cholecystectomy in healthy patients. DESIGN Controlled randomized trial. SETTING University hospital. PATIENTS One hundred patients with symptomatic gallstone disease and American Society of Anesthesiologists status I or II were randomized to have laparoscopic cholecystectomy under spinal (n = 50) or general (n = 50) anesthesia. METHODS Intraoperative parameters, postoperative pain, complications, recovery, and patient satisfaction at follow-up were compared between the 2 groups. RESULTS All the procedures were completed by the allocated method of anesthesia, as there were no conversions from spinal to general anesthesia. Pain was significantly less at 4 hours (P < .001), 8 hours (P < .001), 12 hours (P < .001), and 24 hours (P = .02) after the procedure for the spinal anesthesia group compared with those who received general anesthesia. There was no difference between the 2 groups regarding complications, hospital stay, recovery, or degree of satisfaction at follow-up. CONCLUSIONS Spinal anesthesia is adequate and safe for laparoscopic cholecystectomy in otherwise healthy patients and offers better postoperative pain control than general anesthesia without limiting recovery.


International Journal of Clinical Practice | 2006

The role of antibiotic prophylaxis in elective tension-free mesh inguinal hernia repair: results of a single-centre prospective randomised trial.

George Tzovaras; S. Delikoukos; G. Christodoulides; Michael Spyridakis; F. Mantzos; Konstantinos Tepetes; E. Athanassiou; Constantine Hatzitheofilou

Hernia repair is one of the so‐called clean operations. Many surgeons, however, use antibiotics, especially in the mesh repair era, without strong evidence to support this policy. We conducted a single‐centre prospective randomised trial with a view to clarify this issue on a scientific basis. From January 2000 all patients undergoing elective inguinal hernia repair using a tension‐free polypropylene mesh technique, provided they fulfilled predetermined criteria, were randomised to have a single dose of amoxicillin and clavoulanic acid or placebo in a double‐blind manner. The main end point was to detect any difference in infectious complication rates – with specific interest to wound infection rates – between the two groups. Between January 2000 and June 2004, 386 patients entered the study (364 men and 22 women, median age 63 years, range 15–90 years) and were randomised to have antibiotic prophylaxis (group A, n = 193) or placebo (group B, n = 193). The two groups were comparable regarding demographic data. In total, 19 (5%) cases with infectious complications were detected. Fourteen of these were wound infections (3.7%). There were five cases of wound infection in group A and nine in group B (p = 0.4, Fishers exact test). All wound infections were treated with antibiotics. The wound was opened in some cases. Mesh removal was not required in any of the cases. From the results of this study it does not appear that antibiotic prophylaxis offers any benefits in the elective mesh inguinal hernia repair.


Techniques in Coloproctology | 2005

Local treatment of a loop colostomy prolapse with a linear stapler

Konstantinos Tepetes; M. Spyridakis; Constantine Hatzitheofilou

AbstractStomal prolapse is considered to be a common complication especially following loop colostomies. A variety of methods has been reported for the management of this condition, with many of them requiring extensive reconstruction of the stoma under anesthesia. We report a simple and fast technique for the local correction of the prolapse under minor sedation. A linear stapler device was applied for the amputation and reconstruction of the prolapse stoma at the desired level.


World Journal of Surgery | 2007

Laparoscopic appendectomy : Differences between male and female patients with suspected acute appendicitis

George Tzovaras; Paraskevi Liakou; Ioannis Baloyiannis; Michael Spyridakis; Fotios Mantzos; Konstantinos Tepetes; Evaghelos Athanassiou; Constantine Hatzitheofilou

BackgroundThe role of laparoscopy in the management of patients with suspected acute appendicitis remains controversial. It has been suggested that laparoscopy is useful mainly in young women of reproductive age because of the high incidence of wrong diagnosis in these patients.MethodsDifferent management protocols for patients with suspected acute appendicitis were prospectively used in male and female patients; women of reproductive age were treated laparoscopically, while men were randomised to open or laparoscopic appendectomy.ResultsFrom September 2002 to September 2005, 132 patients—54 women and 78 men—with suspected acute appendicitis were treated according to the protocol. The incidence of wrong diagnosis in female patients was high (26% and the conversion rate low (5.5%). In contrast, in the laparoscopic male subgroup, these rates showed a reverse relationship (5.2% and 18.5%, respectively). Morbidity did not differ between female and male patients or between the 2 arms of the male group. Laparoscopic appendectomy took longer to perform without affecting significantly the needs for postoperative analgesia, the duration of hospital stay and the time to return to normal activities when compared with open appendectomy in men.ConclusionLaparoscopic appendectomy is at least as safe as the open procedure in the male population, although it does not appear to offer any obvious advantage over the open procedure. The diagnostic advantage that laparoscopy offers to fertile women makes the procedure attractive for this population.


Hernia | 2008

Re-operation due to severe late-onset persisting groin pain following anterior inguinal hernia repair with mesh

S. Delikoukos; F. Fafoulakis; G. Christodoulidis; T. Theodoropoulos; Constantine Hatzitheofilou

ObjectivesMild pain lasting for a few days is common following mesh inguinal hernia repair. In some patients however, severe groin pain may appear months or even years postoperatively. The aim of this study was to report our experience of late-onset persisting severe postoperative groin pain occurring years after mesh hernioplasty.MethodsIn a 9-year period, 1,633 patients (1,073 men), median age 63 years (range 19–88), underwent mesh groin hernia repair. Between 1.5 and 4 years postoperatively, six patients (0.35%) presented with severe chronic groin pain unrelieved by conservative measures and surgical exploration was essential. The patients’ records were retrospectively reviewed for the purpose of this study.ResultsIlioinguinal nerve entrapment was detected in four patients. The meshes appeared to be indistinguishable from the nerve and were removed along with the stuck nerve. New meshes were properly inserted. Mesh fixation on the periostium of the pubic tubercle by a staple was found in the other two patients. The staples were removed from the periostium in both patients. Neither hernia recurrence nor chronic groin pain was persisting in all six patients during a follow-up of 6–44 months postoperatively.ConclusionFrom the results of this study, it appears that ilioinguinal nerve entrapment and/or mesh fixation on the periostium of the pubic tubercle are the causes of late-onset severe chronic pain after inguinal mesh hernioplasty. Mesh removal, along with the stuck ilioinguinal nerve and staple detachment from the periostium, are the gold-standard techniques if conservative measures fail to reduce pain.


American Journal of Surgery | 2008

Laparoscopic ventral hernia repair under spinal anesthesia: a feasibility study

George Tzovaras; Dimitris Zacharoulis; Stavroula Georgopoulou; Konstantinos Pratsas; Georgia Stamatiou; Constantine Hatzitheofilou

BACKGROUND Regional anesthesia has not been used as the sole anesthetic procedure in laparoscopic ventral hernia repair due to the fear of potential adverse effects of the pneumoperitoneum. However, there are recent reports on the feasibility of performing laparoscopic procedures, such as cholecystectomy, in fit patients, under spinal anesthesia alone. The current study aimed to detect the feasibility of performing laparoscopic ventral hernia repair under spinal anesthesia. METHODS Twenty-five American Society of Anesthesiologists (ASA) I or II patients underwent laparoscopic ventral hernia repair with low-pressure CO2 pneumoperitoneum under spinal anesthesia. In 9 cases the hernia was umbilical/para-umbilical, in 5 cases epigastric, and in 11 cases incisional. Intraoperative incidents, complications, postoperative pain, and recovery in general, as well as patient satisfaction at follow-up examination, were prospectively recorded. RESULTS All operations were completed laparoscopically and conversion from spinal to general anesthesia was not required in any of the cases. Median pain score at 4 hours postoperatively was .5 (range 0-5), at 8 hours 1.5 (range 0-6), and at 24 hours 1.5 (range 0-4). Most patients were discharged 24 hours after the operation; the median hospital stay was 1 day (range 1-3 days). At 2-weeks follow-up, no late complications were detected and all patients reported being satisfied with the anesthetic procedure. CONCLUSION Laparoscopic ventral hernia repair with low-pressure CO2 pneumoperitoneum can be successfully and safely performed under spinal anesthesia. Furthermore, it seems that spinal anesthesia is associated with minimal postoperative pain and smooth recovery.


Expert Review of Anticancer Therapy | 2005

Antiangiogenic strategies in hepatocellular carcinoma: current status

Dimitris Zacharoulis; Constantine Hatzitheofilou; Evangelos Athanasiou; Stergios Zacharoulis

Hepatocellular carcinoma is a leading cause of cancer death worldwide in both adult and pediatric patients. Despite many options, no ideal treatment exists for this highly malignant tumor, and management strategies have varied accordingly. Angiogenesis, the formation of new blood vessels, is an essential component of hepatocellular carcinoma biology. Innovative approaches such as targeting the nontransformed, less resistant, tumor-supporting endothelial cells are currently under investigation in hepatocellular carcinoma. This review will focus on the current knowledge of the pathophysiology of hepatocellular carcinoma angiogenesis, as well as the reported data with angiogenesis inhibitors against hepatocellular carcinoma.


Clinical Neurology and Neurosurgery | 2006

One trocar laparoscopic placement of peritoneal shunt for hydrocephalus: A simplified technique.

Konstantinos Tepetes; George Tzovaras; Konstantinos Paterakis; Michael Spyridakis; Nikolaos Xautouras; Constantine Hatzitheofilou

Peritoneal catheter placement for the treatment of hydrocephalus can nowadays be performed laparoscopically. We report our experience using a single trocar technique, with emphasis to a modification applied especially for the obese patients.

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