Biomedical subjects

Mehmet Ali Onal

Publications and source records attributed to Mehmet Ali Onal.

4 recordsLinked to original sources

PubMed2006

Urgent abdominal re-explorations.

BACKGROUND: Treatment of a number of complications that occur after abdominal surgeries may require that Urgent Abdominal Re-explorations (UARs), the life-saving and obligatory operations, are performed. The objectives of this study were to evaluate the reasons for performing UARs, outcomes of relaparotomies (RLs) and factors that affect mortality. METHODS: Demographic characteristics; initial diagnoses; information from and complications of the first surgery received; durations and outcomes of UAR(s) performed in patients who received early RLs because of complicated abdominal surgeries in our clinic between 01.01.2000 and 31.12.2004 were investigated retrospectively. Statistical analyses were done using the chi-square and Fisher exact tests. RESULTS: Early UAR was performed in 81 out of 4410 cases (1.8%). Average patient age was 50.46 (13-81) years with a male-to-female ratio of 60/21. Fifty one (62.96%) patients had infection, 41 (50.61%) of them had an accompanying serious disease, 24 (29.62%) of them had various tumors and 57 (70.37%) patients were operated under emergency conditions during first operation. Causes of urgent abdominal re-explorations were as follows: leakage from intestinal repair site or from anostomosis (n:34; 41.97%); hemorrhage (n:15; 18.51%); intestinal perforation (n:8; 9.87%); intraabdominal infection or abscess (n:8; 9.87%); progressive intestinal necrosis (n:7; 8.64%); stomal complications (n:5; 6.17%); and postoperative ileus (n:4; 4.93%). Two or more UARs were performed in 18 (22.22%) cases, and overall mortality was 34.97% (n:30). Interval between the first laparotomy and UAR averaged as 6.95 (1-20) days, and average hospitalization period was 27.1 (3-78) days.Mortality rate was found to be higher among the patients who received multiple UARs. The most common (55.5%) cause of mortality was sepsis/multiple organ failure (MOF). The rates for common mortality and sepsis/MOF-dependent mortality that occured following UAR were significantly higher in patients who received GIS surgery than in those who received other types of surgeries (p:0.000 and 0.010, respectively). CONCLUSION: UARs that are performed following complicated abdominal surgeries have high mortality rates. In particular, UARs have higher mortality rates following GIS surgeries or when infectious complications occur. The possibility of efficiently lowering these high rates depends on the success of the first operations that the patient had received.

Journal Article↗

PubMed2003

[Retrospective analysis of the patients with penetrating cardiac trauma].

BACKGROUND: Penetrating cardiac stab wounds are among rarely seen traumas, associated with high mortality. We aimed to present and investigate our experience in such cases. METHODS: Eighteen cases with penetrating cardiac stab wounds, between 1993-2001, were investigated retrospectively. Gender, age, conditions at application, injured areas, extent of cardiac damage, accompanying organ damages and outcomes of these patients were studied. RESULTS: All patients were male with a mean age of 25.38 years (between 16-42 years). Heart was the only affected organ in nine 9 patients, whereas there were additional organ injuries in the remaining patients. The injuries were at left ventricle in 11, right ventricle in 4 and right atrium in three patients. Only two patients survived among 14 patients who developed cardiac arrest. There was additional organ damage in three of the six survivors. CONCLUSION: The overall mortality was 66%. Suspect of cardiac injury should be considered in patients who are injured close around cardiac area and one should intervene quickly both in diagnosis and treatment.

Adolescent↗

PubMedDate not supplied

[Thick-needle vacuum-assisted biopsy technique for inflammatory breast carcinoma diagnosis].

PURPOSE: Inflammatory breast carcinoma (IBC) is a rare clinicopathological cancer type with unique clinical features and a poor prognosis. In this disease, there is generally no palpable mass in the breast. IBC can be mistakenly diagnosed as mastitis and patients may receive a delayed diagnosis and treatment, since these two disorders cause similar pathological appearences on the breast. Clinical suspicion of the disease followed by histopathological observation of occluded dermal lympthatics by tumor emboli leads to definitive diagnosis of IBC. METHODS: Here, we report our experiences in diagnosing IBC using Thick-Needle Aspiration Biopsy (TNAB). RESULTS: Eight patients having clinically suspected IBC, received TNAB. IBC was definitively diagnosed upon observation in histopathological examination of occluded dermal lymphatics by tumor emboli since TNAB allowed adequate tissue sampling. CONCLUSION: In this study, we showed that IBC can be reliably diagnosed using TNAB.

Adenocarcinoma↗

PubMedDate not supplied

Total gastrectomy for gastric carcinoma.

BACKGROUND/AIMS: Gastric cancer is one of the most common organ cancers all around the world and surgical resection is essential for treatment. Total gastrectomy is the procedure of choice for treatment of proximal gastric cancer. Mortality and morbidity risks of this procedure are high, especially among the elderly. METHODOLOGY: Thirty-eight gastric cancer patients underwent total gastrectomy in the Third Surgical Clinic of Izmir Ataturk Training and Research Hospital between 1996 and 2001. Age, gender, location of the tumor, histopathological findings, TNM stage, type of anastomosis, operation time, blood transfusions, oral food intake, postoperative hospital stay, morbidity, mortality both early and late, and survival rate were evaluated. RESULTS: Mean age of the patients was 59.5 years (22-85 years). Sites of the tumors were: cardia 28.9%, cardia and corpus 15.8%, corpus 34.3%, corpus and antrum 18.4%, linitis plastica 2.6%. Histological types were adenocarcinoma (97.4%), and squamous cell carcinoma (2.6%). TNM stages were: stage la 2.6%, stage II 7.9%, stage IIIa 39.5%, stage IIIb 42.1%, and stage IV 7.9%. Esophagojejunostomies were performed manually (34.3%) or by circular staplers (65.7%). Operation time ranged between 3 and 6.5 hours. Gastric tubes were removed on the fourth postoperative day. Average postoperative hospital stay was 12.9 days. Postoperative morbidity was 21%. Wound infection occurred in three patients (7.9%), pulmonary infection occurred in two patients (5.2%) and anastomotic stricture developed in three patients (7.9%). Hospital mortality was 20%. Anastomotic leak occurred in five cases (13.2%) and all died on days 8, 13, 14, 26, and 30. Three patients (7.9%) died of cardiac complications on days 1, 5, and 29. Twelve patients survived for less than one year and eight patients survived for one to two years. Average survival was 10.5 months for 20 out of 30 patients (median 8 months). Ten patients are still alive after 14.3 months. Four patients have been living for less than one year, another four patients for one to two years, and two patients for more than two years. CONCLUSIONS: Total gastrectomy, either performed with a curative or palliative aim, is a safe procedure with acceptable mortality rates. 89.5% of our cases were stage III or IV resulting in a low survival rate. Longer survival rates can be achieved in patients with comparatively earlier stages.

Adenocarcinoma↗