Spontaneous eruption of impacted maxillary incisors after surgical extraction of supernumerary teeth: a systematic review and meta-analysis.

Objectives: To evaluate the spontaneous eruption potential of impacted human permanent teeth localized in the anterior part of the maxilla, after the surgical extraction of obstacles in their eruption pathway, by means of a systematic review and meta-analysis.

Materials And Methods: A systematic literature search was carried out to locate studies reporting on the percentage of anterior permanent teeth erupting after surgical removal of the obstacle, without other interventions. Eruption potential of impacted teeth was calculated using a random-effects meta-analysis.

Respiratory dependent compression of a venous bypass: therapy by stenting.

Although coronary artery bypass surgery has provided major advances in the treatment of coronary artery disease, narrowing of bypass vessels still constitutes a drawback of this therapy. Although this event is most frequently caused by intraluminal processes, obstruction from external structures is extremely rare. We report such a case in which external bypass compression was provoked by deep inspiration causing typical anginal symptoms.

Patient-reported toxicity correlated to dose-volume histograms of the rectum in radiotherapy of the prostate.

We studied 73 patients treated with 3-dimensional conformal radiotherapy for prostate cancer to determine whether there is a correlation between dose per volume to either the whole rectum, rectal wall, rectal surface, or anal canal and the development of late rectal complications measured with prostate-specific quality-of-life (QOL) questionnaires. Given doses were 66.6 to 72 Gy.

Clinical markers of hypoxia and other predictive factors of survival in conservative therapy of squamous-cell carcinoma of the esophagus.

Background And Aims: Carcinoma of the esophagus is an aggressive cancer with a high failure rate after combined local and systemic treatment modalities. One of the factors that could influence the high rate of locoregional persistence is hypoxia. Hypoxic cancers are known to be more aggressive and less responsive to chemo- and radiotherapy.

Influence of respiration-induced organ motion on dose distributions in treatments using enhanced dynamic wedges.

The mean velocity of respiration-induced organ motion in cranio-caudal direction is of the same magnitude as the velocity of the moving jaw during a treatment with an enhanced dynamic wedge. Therefore, if organ motion is present during collimator movement, the resulting dose distribution in wedge direction may differ from that obtained for the static case, i.e.

Preoperative radiotherapy without femoral shielding for prevention of heterotopic ossification in hydroxyapatite-coated hip prostheses.

Twenty-seven consecutive patients at high risk of developing heterotopic ossifications (HO) after implantation of a hydroxyapatite (HA)-coated hip prosthesis were irradiated with a single dose of 7 Gy, at least 4 h before the operation. The femoral stem was not shielded during radiotherapy (RT). After a median follow-up of 14.

External irradiation of macroinvasive pituitary adenomas with telecobalt: a retrospective study with long-term follow-up in patients irradiated with doses mostly of between 40-45 Gy.

Purpose: Published dose recommendations for radiotherapy in patients with pituitary macroadenomas vary. Therefore, we retrospectively analyzed the results in our patients from the treatment period 1973-1992.

Methods And Materials: From a total of 89 patients with macroinvasive adenomas, 66 received radiation therapy immediately following subtotal surgical removal (combined treatment modality), and 22 were irradiated as primary treatment or after surgical recurrence.

[Cardio-pulmonary complications, respiratory treatment and PaO2 after open heart surgery (author's transl)].

Despite the almost complete disappearance of the so called "postperfusion lung syndrome" after cardiac surgery with extracorporeal circulation (ECC), there is still a need for respiratory treatment in some cases, primarily for cardio-circulatory or respiratory reasons. In addition postoperative artificial ventilation is provided routinely in many centers for at least a few hours, until stabilization of cardio-circulatory and metabolic state is achieved. In 4 groups (I-IV) with a total of 659 patients (18 to 72 years old) undergoing open cardiac surgery for acquired heart disease (I: aortic valve, II: mitral valve, III: multivalvular disease, IV: coronary artery disease) postoperative cardio-circulatory and pulmonary complication rate, duration of artificial ventilation needed, PaO2 and some influencing factors have been evaluated.

[Parasternal lymphoscintigraphy in mastocarcinoma, its diagnostic value and significance for prognosis (author's transl)].

The scintigraphic investigation of parasternal lymph nodes is a simple method which is well tolerated by the patients. It gives additional information about lymphatic metastases. This examination is of great value for prognosis and therapy in cases of breast cancer.

[Liver metastases: diagnostic value of blood tests, scintiscanning, and laparoscopy (author's transl)].

In 90 patients with known extra-hepatic malignancy the liver was examined for metastases. The diagnostic value of clinical information, blood examinations, 99mTc scintiscan, and laparoscopy for the diagnosis of the liver metastases was evaluated. Clinical data (age, sex, time since onset of symptoms and localisation of primary tumor) are of no diagnostic value.

[The diagnosis of liver metastases and primary hepatomas by means of scintigraphy, laparoscopy and laparotomy].

To evaluate the presence or absence of hepatic metastases or primary hepatoma 106 patients were examined by liver scintigram as well as laparoscopy or laparotomy. A definite diagnosis was established in all patients by histology, autopsy or observation of clinical course for at least one year. Only scintigrams resulted in false positive diagnosis (in 5%).